/* 像素沙盒 - 样式 */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --sa-top: env(safe-area-inset-top, 0px);
  --sa-right: env(safe-area-inset-right, 0px);
  --sa-bottom: env(safe-area-inset-bottom, 0px);
  --sa-left: env(safe-area-inset-left, 0px);
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: #000;
  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

#game-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  padding: var(--sa-top) var(--sa-right) var(--sa-bottom) var(--sa-left);
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
}

/* ---- 合成弹窗（浮动面板，不遮挡游戏画面）---- */
#crafting-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: transparent;
  display: none;
  align-items: flex-start;
  justify-content: flex-end;
  z-index: 50;
  /* 关键修复：让遮罩层接收点击，使「点击面板外区域关闭」生效，
     并阻止点击穿透到画布导致手机端工作台/熔炉反复重开 */
  pointer-events: auto;
}

#crafting-panel {
  width: 380px;
  max-width: 90vw;
  max-height: 85vh;
  margin: 50px 10px 10px 0;
  background: linear-gradient(135deg, #1a1e2e, #131826);
  border: 2px solid rgba(0,212,255,0.3);
  border-radius: 16px;
  padding: 18px;
  overflow-y: auto;
  box-shadow: 0 0 40px rgba(0,212,255,0.15), 0 8px 32px rgba(0,0,0,0.5);
  pointer-events: auto;
}

#crafting-panel::-webkit-scrollbar { width: 6px; }
#crafting-panel::-webkit-scrollbar-thumb { background: rgba(0,212,255,0.3); border-radius: 3px; }

.craft-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: #00d4ff;
  margin-bottom: 8px;
}

/* 标题栏关闭按钮（手机端更显眼的关闭入口） */
.craft-close-x {
  flex: 0 0 auto;
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: #c0d0e8;
  font-size: 18px; line-height: 1;
  cursor: pointer;
  transition: all 0.15s;
}
.craft-close-x:hover, .craft-close-x:active { background: rgba(255,120,120,0.35); color: #fff; }

.craft-stations {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.station-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 8px;
}

.station-badge.active {
  background: rgba(34,204,68,0.15);
  color: #44dd66;
  border: 1px solid rgba(34,204,68,0.3);
}

.station-badge.inactive {
  background: rgba(255,80,80,0.1);
  color: #ff6666;
  border: 1px solid rgba(255,80,80,0.2);
}

.craft-group {
  margin-bottom: 16px;
}

.craft-group.group-locked {
  opacity: 0.6;
}

.craft-group-title {
  font-size: 14px;
  font-weight: 600;
  color: #a0b0c8;
  margin-bottom: 8px;
  padding-left: 4px;
}

.craft-lock-text {
  font-size: 11px;
  color: #ff8866;
  font-weight: 400;
}

.craft-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.craft-empty {
  text-align: center;
  color: #5a6478;
  font-size: 13px;
  padding: 30px 0;
  line-height: 1.6;
}

.recipe-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
}

.recipe-card:hover {
  background: rgba(0,212,255,0.08);
  border-color: rgba(0,212,255,0.3);
  transform: translateX(4px);
}

.recipe-card.dimmed {
  opacity: 0.45;
  cursor: not-allowed;
}

.recipe-card.dimmed:hover {
  transform: none;
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
}

.recipe-icon-canvas {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.1);
  flex-shrink: 0;
}

.recipe-info {
  flex: 1;
  min-width: 0;
}

.recipe-name {
  font-size: 14px;
  font-weight: 600;
  color: #e8eaf0;
  margin-bottom: 2px;
}

.recipe-inputs {
  font-size: 11px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.recipe-item {
  font-weight: 600;
  color: #88cc88;
}

.recipe-item.missing {
  color: #ff8866;
  text-decoration: line-through;
  opacity: 0.7;
}

.recipe-btn {
  font-size: 12px;
  font-weight: 600;
  color: #00d4ff;
  padding: 6px 14px;
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.3);
  border-radius: 8px;
  flex-shrink: 0;
}

.recipe-btn.disabled {
  color: #5a6478;
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
}

/* 化学方程式显示 */
.recipe-chem {
  font-size: 10px;
  color: #88ccff;
  font-family: 'Consolas', 'Courier New', monospace;
  margin-top: 2px;
  padding: 2px 6px;
  background: rgba(0,100,200,0.08);
  border-radius: 4px;
  border-left: 2px solid rgba(0,150,255,0.3);
  line-height: 1.4;
}

/* 工具需求显示 */
.recipe-tool-req {
  font-size: 10px;
  color: #ffaa44;
  margin-top: 2px;
  font-weight: 600;
}

/* 合成面板模式样式 —— 强主题化，一眼区分工作台(青蓝)与熔炉(橙红) */
#crafting-panel.mode-workbench {
  border: 2px solid #00d4ff;
  background: linear-gradient(135deg, #16242e, #0f1a22);
  box-shadow: 0 0 48px rgba(0,212,255,0.45), 0 8px 32px rgba(0,0,0,0.6);
}

#crafting-panel.mode-furnace {
  border: 2px solid #ff7a1e;
  background: linear-gradient(135deg, #2a1a12, #1b0f08);
  box-shadow: 0 0 48px rgba(255,122,30,0.45), 0 8px 32px rgba(0,0,0,0.6);
}

#crafting-panel.mode-hand {
  border: 2px solid #64ff96;
  box-shadow: 0 0 48px rgba(100,255,150,0.3), 0 8px 32px rgba(0,0,0,0.6);
}

/* 模式专属：配方卡片悬停与合成按钮配色，强化冷暖区分 */
.mode-workbench .recipe-card:hover { background: rgba(0,212,255,0.1); border-color: rgba(0,212,255,0.4); }
.mode-furnace   .recipe-card:hover { background: rgba(255,122,30,0.12); border-color: rgba(255,122,30,0.45); }
.mode-furnace   .recipe-btn { color: #ffb347; background: rgba(255,122,30,0.12); border-color: rgba(255,122,30,0.4); }
.mode-furnace   .recipe-btn.disabled { color: #6a5a4a; background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.08); }

/* 工作站专属视觉装饰 —— 让工作台/熔炉一眼可辨，纯装饰不改机制 */
.station-visual {
  margin: 2px 0 14px;
  padding: 14px;
  border-radius: 12px;
  text-align: center;
}

/* 工作台：木质 3x3 合成网格 */
.wb-visual {
  background: linear-gradient(135deg, rgba(138,90,42,0.18), rgba(90,58,24,0.10));
  border: 1px solid rgba(138,90,42,0.45);
}
.wb-grid {
  display: grid;
  grid-template-columns: repeat(3, 30px);
  grid-template-rows: repeat(3, 30px);
  gap: 4px;
  justify-content: center;
  margin-bottom: 8px;
}
.wb-grid span {
  background: rgba(138,90,42,0.25);
  border: 1px solid rgba(180,130,70,0.4);
  border-radius: 5px;
  box-shadow: inset 0 0 6px rgba(0,0,0,0.25);
}
.wb-grid span:nth-child(5) {
  background: rgba(190,140,80,0.4);
  border-color: rgba(210,160,100,0.6);
}

/* 熔炉：烧炼流程 + 进度条动画（纯装饰） */
.furnace-visual {
  background: linear-gradient(135deg, rgba(255,122,30,0.16), rgba(120,40,10,0.10));
  border: 1px solid rgba(255,122,30,0.4);
}
.furnace-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 10px;
}
.ff-slot {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,122,30,0.35);
  border-radius: 8px;
}
.ff-flame {
  font-size: 26px;
  animation: furnaceFlicker 0.8s infinite alternate;
  filter: drop-shadow(0 0 6px rgba(255,140,40,0.7));
}
.ff-arrow { color: #ffb347; font-size: 16px; }
@keyframes furnaceFlicker {
  from { transform: scale(1) translateY(0); opacity: 0.85; }
  to   { transform: scale(1.15) translateY(-2px); opacity: 1; }
}
.ff-progress {
  height: 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
  position: relative;
}
.ff-progress-fill {
  position: absolute;
  top: 0; bottom: 0;
  width: 40%;
  border-radius: 4px;
  background: linear-gradient(90deg, #ff7a1e, #ffd24a);
  animation: furnaceSmelt 2.2s linear infinite;
}
@keyframes furnaceSmelt {
  0%   { left: -40%; }
  100% { left: 100%; }
}
.station-visual-tip {
  font-size: 11px;
  color: #c0a080;
  margin-top: 6px;
}
.mode-furnace .station-visual-tip { color: #ffba87; }

/* 标题栏：按模式着色 + 彩色胶囊背景，更醒目 */
.craft-title {
  padding: 9px 14px;
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  margin-bottom: 10px;
}
.mode-workbench .craft-title { color: #5fe3ff; background: rgba(0,212,255,0.14); }
.mode-furnace   .craft-title { color: #ffb347; background: rgba(255,122,30,0.16); }
.mode-hand      .craft-title { color: #7dffa8; background: rgba(100,255,150,0.12); }

/* 工作站徽章：激活态高亮发光，未靠近时红色警示 */
.station-badge {
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 10px;
  border: 1px solid transparent;
}
.station-badge.active {
  background: rgba(100,255,150,0.18);
  color: #8affb0;
  border-color: rgba(100,255,150,0.55);
  box-shadow: 0 0 14px rgba(100,255,150,0.3);
}
.station-badge.inactive {
  background: rgba(255,90,90,0.16);
  color: #ff9a9a;
  border-color: rgba(255,110,110,0.45);
}

/* 合成面板关闭按钮（吸底，手机端始终可见） */
.craft-close-btn {
  position: sticky;
  bottom: 0;
  text-align: center;
  padding: 12px;
  margin-top: 12px;
  background: rgba(255,90,90,0.16);
  border: 1px solid rgba(255,110,110,0.45);
  border-radius: 10px;
  color: #ff9a9a;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
}

.craft-close-btn:hover, .craft-close-btn:active {
  background: rgba(255,90,90,0.3);
}

/* 工具需求提示 */
.tool-req-tip {
  position: absolute;
  bottom: 70px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255,100,50,0.9);
  color: #fff;
  padding: 6px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  z-index: 65;
  pointer-events: none;
  animation: shake 0.3s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(-50%); }
  25% { transform: translateX(-52%); }
  75% { transform: translateX(-48%); }
}

/* ---- 背包弹窗（浮动面板，不遮挡游戏画面）---- */
#inventory-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: transparent;
  display: none;
  align-items: flex-start;
  justify-content: flex-end;
  z-index: 55;
  /* 关键修复：同合成弹窗，避免点击穿透到画布 */
  pointer-events: auto;
}

#inventory-panel {
  width: 420px;
  max-width: 92vw;
  max-height: 85vh;
  margin: 50px 10px 10px 0;
  background: linear-gradient(135deg, #1a1e2e, #131826);
  border: 2px solid rgba(100,255,150,0.25);
  border-radius: 16px;
  padding: 18px;
  overflow-y: auto;
  box-shadow: 0 0 40px rgba(100,255,150,0.12), 0 8px 32px rgba(0,0,0,0.5);
  pointer-events: auto;
}

#inventory-panel::-webkit-scrollbar { width: 6px; }
#inventory-panel::-webkit-scrollbar-thumb { background: rgba(100,255,150,0.25); border-radius: 3px; }

.inv-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: #66ff99;
  margin-bottom: 14px;
  text-align: center;
}

/* 标题栏关闭按钮（手机端更显眼的关闭入口） */
.inv-close-x {
  flex: 0 0 auto;
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: #c0d0e8;
  font-size: 18px; line-height: 1;
  cursor: pointer;
  transition: all 0.15s;
}
.inv-close-x:hover, .inv-close-x:active { background: rgba(255,120,120,0.35); color: #fff; }

.inv-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 16px;
  max-height: 46vh;
  overflow-y: auto;
  padding-right: 4px;
}

.inv-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 4px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
}

.inv-slot.filled { min-height: 78px; }
.inv-slot:not(.filled) { min-height: 78px; opacity: .72; }
.inv-empty-slot { width:32px; height:32px; display:flex; align-items:center; justify-content:center; color:rgba(255,255,255,.18); font-size:10px; border:1px dashed rgba(255,255,255,.08); border-radius:6px; }
.inv-slot:hover {
  background: rgba(100,255,150,0.08);
  border-color: rgba(100,255,150,0.3);
  transform: translateY(-2px);
}

.inv-slot.in-hotbar {
  border-color: rgba(0,212,255,0.4);
  background: rgba(0,212,255,0.06);
}

.inv-slot canvas {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.inv-slot-name {
  font-size: 10px;
  color: #a0b0c8;
  margin-top: 4px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.inv-slot-count {
  position: absolute;
  bottom: 3px;
  right: 5px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: rgba(0,0,0,0.7);
  padding: 1px 5px;
  border-radius: 6px;
}

.inv-slot-elem {
  position: absolute;
  top: 3px;
  left: 5px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid rgba(0,0,0,0.4);
}

/* 背包内丢弃按钮：桌面悬停显示，触屏设备常显 */
.inv-discard {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 20px;
  height: 20px;
  padding: 0;
  border: none;
  border-radius: 5px;
  background: rgba(255,80,80,0.85);
  color: #fff;
  font-size: 11px;
  line-height: 20px;
  text-align: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.12s;
  z-index: 2;
}
.inv-slot:hover .inv-discard { opacity: 1; }
@media (hover: none) {
  .inv-discard { opacity: 1; }
}

.inv-empty {
  text-align: center;
  color: #5a6478;
  font-size: 14px;
  padding: 40px 0;
  line-height: 1.6;
}

.inv-hotbar-section {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 14px;
}

.inv-hotbar-title {
  font-size: 13px;
  font-weight: 600;
  color: #00d4ff;
  margin-bottom: 10px;
  text-align: center;
}

.inv-hotbar-grid {
  display: flex;
  gap: 6px;
  justify-content: center;
}

.inv-hotbar-slot {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  border: 2px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  position: relative;
  cursor: pointer;
}

.inv-hotbar-slot.selected {
  border-color: #00d4ff;
  background: rgba(0,212,255,0.1);
}

.inv-hotbar-slot canvas {
  width: 32px;
  height: 32px;
}

.inv-hotbar-num {
  position: absolute;
  top: 1px;
  left: 3px;
  font-size: 9px;
  color: rgba(255,255,255,0.4);
  font-weight: 700;
}

.inv-close-btn {
  position: sticky;
  bottom: 0;
  text-align: center;
  padding: 12px;
  margin-top: 14px;
  background: rgba(100,255,150,0.12);
  border: 1px solid rgba(100,255,150,0.4);
  border-radius: 10px;
  color: #66ff99;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
}

.inv-close-btn:hover, .inv-close-btn:active {
  background: rgba(100,255,150,0.25);
}

/* ---- 手机触屏控件 ---- */
#mobile-controls {
  display: none;
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 45;
  pointer-events: none;
}

body.touch-device #mobile-controls {
  display: block;
}

/* 桌面鼠标/触控板环境强制使用电脑 UI。即使 Windows 触摸屏报告 touch points，也不显示手机摇杆和手机按钮。 */
@media (hover: hover) and (pointer: fine) and (min-width: 900px) {
  #mobile-controls {
    display: none !important;
  }
}

/* 背包/合成/对战打开时隐藏控件 */
body.touch-device.crafting-open #mobile-controls,
body.touch-device.inventory-open #mobile-controls,
body.touch-device.battle-open #mobile-controls {
  display: none;
}

/* 虚拟摇杆（常显） */
#joystick-base {
  position: absolute;
  bottom: 24px;
  left: 30px;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: rgba(0,0,0,0.28);
  border: 2px solid rgba(255,255,255,0.28);
  pointer-events: auto;
  touch-action: none;
  backdrop-filter: blur(4px);
  /* 常显：始终可见，未操作时半透明提示 */
  opacity: 0.55;
  transition: opacity 0.15s;
}
#joystick-base.active {
  opacity: 1;
}

#joystick-knob {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(0,212,255,0.65), rgba(0,120,180,0.45));
  border: 2px solid rgba(0,212,255,0.55);
  box-shadow: 0 0 12px rgba(0,212,255,0.35);
  pointer-events: none;
  transition: transform 0.05s linear;
}

#joystick-base.active #joystick-knob {
  background: radial-gradient(circle at 35% 35%, rgba(0,255,150,0.75), rgba(0,180,100,0.55));
  border-color: rgba(0,255,150,0.65);
  box-shadow: 0 0 16px rgba(0,255,150,0.45);
}

/* 右侧操作按钮 */
#mobile-actions {
  position: absolute;
  bottom: 96px;
  right: 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 14px;
  pointer-events: none;
}

#mobile-action-row {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  pointer-events: none;
}

.mobile-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.25);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  pointer-events: auto;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  backdrop-filter: blur(4px);
  transition: transform 0.08s, background 0.1s;
  position: relative;
}

.mobile-btn:active,
.mobile-btn.pressed {
  transform: scale(0.88);
}

.jump-btn {
  background: rgba(0,212,255,0.2);
  border-color: rgba(0,212,255,0.4);
  width: 72px;
  height: 72px;
  font-size: 30px;
}

.jump-btn:active,
.jump-btn.pressed {
  background: rgba(0,212,255,0.45);
}

.mine-btn {
  background: rgba(255,180,60,0.18);
  border-color: rgba(255,180,60,0.35);
  align-self: flex-end;
}

.mine-btn:active,
.mine-btn.pressed {
  background: rgba(255,180,60,0.4);
}

.place-btn {
  background: rgba(100,255,150,0.15);
  border-color: rgba(100,255,150,0.3);
}

.place-btn:active,
.place-btn.pressed {
  background: rgba(100,255,150,0.35);
}

.drop-btn {
  background: rgba(255,120,120,0.15);
  border-color: rgba(255,120,120,0.35);
}

.drop-btn:active,
.drop-btn.pressed {
  background: rgba(255,120,120,0.4);
}

/* 顶部状态栏（整合：自动存档提示 / 静音 / 背包 / 合成） */
#mobile-topbar {
  position: absolute;
  top: calc(12px + var(--sa-top));
  right: calc(12px + var(--sa-right));
  display: flex;
  align-items: center;
  gap: 8px;
  pointer-events: none;
  z-index: 46;
}

/* 手机版：隐藏独立静音键（JS 会把它移入顶部状态栏整合） */
body.touch-device .hud-btn#btn-mute { display: none; }

.mobile-top-btn {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(0,0,0,0.45);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  pointer-events: auto;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  backdrop-filter: blur(4px);
  transition: transform 0.08s, background 0.1s;
}

.mobile-top-btn:active {
  transform: scale(0.9);
  background: rgba(0,212,255,0.3);
}

/* V4.1.5：手机聊天入口 */
#btn-chat {
  border-color: rgba(0,212,255,0.35);
  background: rgba(0,55,90,0.48);
}
#btn-chat:active {
  background: rgba(0,212,255,0.35);
}

/* 通用 HUD 按钮（静音等，桌面+手机均可见） */
.hud-btn {
  position: fixed;
  top: 10px;
  right: 10px;
  z-index: 50;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(0,0,0,0.45);
  color: #fff;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  backdrop-filter: blur(4px);
  transition: transform 0.08s, background 0.1s;
}
.hud-btn:active {
  transform: scale(0.9);
  background: rgba(0,212,255,0.3);
}

/* 右上角两个 HUD 按钮并排，避免 🔊 与 ⚙️ 重叠（UI 修复） */
#btn-settings { right: 62px; }

/* ---- 在线玩家列表（重做：第一行在线人数，其后最多 3 行玩家名称） ---- */
#player-list {
  position: fixed;
  top: calc(100px + var(--sa-top)); /* 避开血条/饥饿/经验 HUD */
  left: calc(10px + var(--sa-left));
  right: auto;
  z-index: 50;
  min-width: 168px;
  max-width: 260px;
  border: 1px solid rgba(0,212,255,0.28);
  border-radius: 10px;
  background: rgba(8,14,26,0.72);
  backdrop-filter: blur(4px);
  font-size: 12px;
  color: #e8fff6;
  overflow: hidden;
}
#player-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
  color: #00d4ff;
  border-bottom: 1px solid rgba(0,212,255,0.18);
}
#player-count {
  color: #fff;
  background: rgba(0,212,255,0.22);
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 11px;
}
#player-list-body { padding: 4px 0; }
.player-list-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  line-height: 1.45;
  white-space: nowrap;
  overflow: hidden;
}
.player-list-item .dot { width: 7px; height: 7px; border-radius: 50%; flex: 0 0 7px; }
.player-list-item .nm { overflow: hidden; text-overflow: ellipsis; }
.player-list-item.self { color: #00d4ff; font-weight: 600; }
.player-list-item.self .self-tag { opacity: .75; font-weight: 400; font-size: 11px; }
.player-list-item.muted { color: #8ea2b8; font-size: 11.5px; }
body.touch-device #player-list {
  top: calc(100px + var(--sa-top));
  left: calc(10px + var(--sa-left));
}

/* 触屏设备隐藏鼠标光标 */
body.touch-device #game-canvas {
  cursor: default;
}

/* 触屏设备调整热栏位置（JS 中通过 isTouch 检测调整）*/

/* ---- Toast ---- */
#game-toast {
  position: absolute;
  top: 50px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(0,212,255,0.15);
  border: 1px solid rgba(0,212,255,0.4);
  border-radius: 8px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #00d4ff;
  z-index: 70;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
  backdrop-filter: blur(8px);
  white-space: nowrap;
}

#game-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---- 卡牌对战面板 ---- */
#battle-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 60;
  touch-action: none;
}

#battle-panel {
  width: 480px;
  max-width: 92vw;
  max-height: 88vh;
  background: linear-gradient(135deg, #1a1e2e, #131826);
  border: 2px solid rgba(255,100,50,0.3);
  border-radius: 16px;
  padding: 20px;
  overflow-y: auto;
  box-shadow: 0 0 50px rgba(255,100,50,0.15), 0 0 20px rgba(0,0,0,0.5);
}

#battle-panel::-webkit-scrollbar { width: 6px; }
#battle-panel::-webkit-scrollbar-thumb { background: rgba(255,100,50,0.3); border-radius: 3px; }

.battle-title {
  font-size: 20px;
  font-weight: 700;
  color: #ff8855;
  margin-bottom: 16px;
  text-align: center;
  text-shadow: 0 0 10px rgba(255,100,50,0.3);
}

.battle-combatant {
  margin-bottom: 10px;
}

.battle-combatant-name {
  font-size: 13px;
  font-weight: 600;
  color: #c8d0e0;
  margin-bottom: 4px;
  display: block;
}

.battle-hp-bar {
  position: relative;
  height: 20px;
  background: rgba(0,0,0,0.5);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
}

.battle-hp-fill {
  height: 100%;
  border-radius: 10px;
  transition: width 0.4s ease;
}

.battle-hp-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 0 4px rgba(0,0,0,0.8);
}

.battle-section-title {
  font-size: 13px;
  font-weight: 600;
  color: #8892a8;
  margin: 14px 0 10px;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 10px;
}

.battle-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 14px;
}

.battle-no-cards {
  text-align: center;
  color: #5a6478;
  font-size: 13px;
  padding: 20px 0;
  line-height: 1.6;
}

.battle-card {
  width: 72px;
  padding: 8px 6px;
  background: rgba(255,255,255,0.04);
  border: 2px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.battle-card:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-3px);
}

.battle-card.selected {
  background: rgba(255,200,100,0.12);
  border-width: 2px;
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 4px 16px rgba(255,200,100,0.2);
}

.battle-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  border: 1px solid rgba(255,255,255,0.1);
}

.battle-card-name {
  font-size: 11px;
  font-weight: 600;
  color: #d0d8e8;
}

.battle-card-elem {
  font-size: 10px;
  font-weight: 700;
}

.battle-card-count {
  font-size: 10px;
  color: #8892a8;
  background: rgba(0,0,0,0.4);
  padding: 1px 6px;
  border-radius: 8px;
}

.battle-selected-area {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.battle-selected-label {
  font-size: 12px;
  font-weight: 600;
  color: #8892a8;
  white-space: nowrap;
}

.battle-selected-card {
  padding: 4px 10px;
  background: rgba(255,255,255,0.06);
  border: 2px solid #666;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  color: #d0d8e8;
  cursor: pointer;
  transition: all 0.15s;
}

.battle-selected-card:hover {
  background: rgba(255,80,80,0.1);
}

.battle-selected-card.empty {
  border-style: dashed;
  color: #5a6478;
  cursor: default;
  background: transparent;
}

.battle-selected-card.empty:hover {
  background: transparent;
}

.battle-reaction {
  text-align: center;
  margin-bottom: 10px;
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reaction-found {
  padding: 8px 16px;
  background: rgba(255,200,100,0.1);
  border: 1px solid rgba(255,200,100,0.4);
  border-radius: 10px;
  font-size: 13px;
  color: #ffdd88;
  line-height: 1.5;
  animation: reactionGlow 1.5s ease-in-out infinite;
}

@keyframes reactionGlow {
  0%, 100% { box-shadow: 0 0 8px rgba(255,200,100,0.2); }
  50% { box-shadow: 0 0 20px rgba(255,200,100,0.4); }
}

.reaction-none {
  font-size: 12px;
  color: #5a6478;
}

.reaction-hint {
  font-size: 12px;
  color: #6a7488;
}

.battle-damage {
  text-align: center;
  font-size: 14px;
  color: #a0a8b8;
  margin-bottom: 14px;
}

.battle-damage .dmg-num {
  font-size: 22px;
  color: #ff8855;
  text-shadow: 0 0 8px rgba(255,100,50,0.3);
}

.battle-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 12px;
}

.battle-btn {
  padding: 10px 28px;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
}

.battle-btn.attack {
  background: linear-gradient(135deg, #ff6b3a, #e0491a);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255,100,50,0.3);
}

.battle-btn.attack:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,100,50,0.4);
}

.battle-btn.attack:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background: #555;
  box-shadow: none;
}

.battle-btn.flee {
  background: rgba(255,255,255,0.08);
  color: #a0a8b8;
  border: 1px solid rgba(255,255,255,0.15);
}

.battle-btn.flee:hover:not(:disabled) {
  background: rgba(255,255,255,0.12);
}

.battle-btn.flee:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.battle-btn.punch {
  background: rgba(200,200,200,0.15);
  color: #c0c0c8;
  border: 1px solid rgba(200,200,200,0.25);
}

.battle-btn.punch:hover:not(:disabled) {
  background: rgba(200,200,200,0.25);
  transform: translateY(-2px);
}

.battle-btn.punch:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.battle-cheatsheet {
  margin-top: 4px;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 10px;
}

.battle-cheatsheet summary {
  font-size: 12px;
  color: #6a7488;
  cursor: pointer;
  text-align: center;
  list-style: none;
}

.battle-cheatsheet summary::-webkit-details-marker {
  display: none;
}

.cheatsheet-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 10px;
}

.cheatsheet-item {
  font-size: 11px;
  color: #8892a8;
  padding: 4px 8px;
  background: rgba(255,255,255,0.03);
  border-radius: 6px;
}

/* ---- 元素发现弹窗 ---- */
#element-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 80;
  touch-action: none;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

#element-panel {
  width: 380px;
  max-width: 92vw;
  max-height: 88vh;
  background: linear-gradient(135deg, #1a1e2e, #0f1420);
  border: 2px solid rgba(100,255,200,0.3);
  border-radius: 16px;
  padding: 24px;
  overflow-y: auto;
  box-shadow: 0 0 60px rgba(100,255,200,0.15);
  animation: popIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes popIn {
  from { transform: scale(0.7); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.element-popup-header {
  text-align: center;
  margin-bottom: 20px;
}

.element-discover-badge {
  font-size: 16px;
  font-weight: 700;
  color: #88ffcc;
  text-shadow: 0 0 12px rgba(100,255,200,0.4);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.element-card-outer {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.element-card {
  width: 120px;
  height: 140px;
  background: linear-gradient(135deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: 3px solid;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.element-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: currentColor;
  opacity: 0.6;
}

.element-number {
  position: absolute;
  top: 8px;
  left: 10px;
  font-size: 14px;
  font-weight: 700;
  opacity: 0.8;
}

.element-symbol {
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 4px;
  text-shadow: 0 0 15px currentColor;
}

.element-name-cn {
  font-size: 16px;
  font-weight: 600;
  color: #e0e8f0;
}

.element-name-en {
  font-size: 11px;
  color: #8892a8;
  margin-top: 2px;
}

.element-mass {
  position: absolute;
  bottom: 8px;
  right: 10px;
  font-size: 10px;
  color: #6a7488;
}

.element-details {
  background: rgba(255,255,255,0.03);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 16px;
}

.element-detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 13px;
}

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

.detail-label {
  color: #6a7488;
  font-weight: 500;
}

.detail-val {
  color: #d0d8e8;
  font-weight: 600;
}

.element-desc {
  font-size: 12.5px;
  color: #a0a8b8;
  line-height: 1.7;
  padding: 12px 14px;
  background: rgba(255,255,255,0.02);
  border-left: 3px solid rgba(100,255,200,0.3);
  border-radius: 0 8px 8px 0;
  margin-bottom: 16px;
}

.element-progress {
  text-align: center;
  font-size: 12px;
  color: #88ffcc;
  font-weight: 600;
  margin-bottom: 16px;
  padding: 8px;
  background: rgba(100,255,200,0.05);
  border-radius: 8px;
}

.element-close-btn {
  text-align: center;
  padding: 12px;
  background: linear-gradient(135deg, rgba(100,255,200,0.15), rgba(50,200,150,0.1));
  border: 1px solid rgba(100,255,200,0.3);
  border-radius: 10px;
  color: #88ffcc;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
}

.element-close-btn:hover {
  background: linear-gradient(135deg, rgba(100,255,200,0.25), rgba(50,200,150,0.15));
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(100,255,200,0.2);
}

/* ---- 加载画面 ---- */
#loading-screen {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: #0a0e1a;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  transition: opacity 0.6s ease;
}

#loading-screen.hide {
  opacity: 0;
  pointer-events: none;
}

.loading-icon {
  font-size: 56px;
  animation: bounce 1s ease-in-out infinite;
}

.loading-text {
  font-size: 16px;
  font-weight: 600;
  color: #00d4ff;
}

.loading-bar {
  width: 200px;
  height: 4px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  overflow: hidden;
}

.loading-fill {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #00d4ff, #a855f7);
  border-radius: 2px;
  animation: loadBar 1.5s ease forwards;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes loadBar {
  0% { width: 0; }
  100% { width: 100%; }
}

/* ---- 用户名输入界面 ---- */
#nickname-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, #0a0e1a, #16213e);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease;
}

#nickname-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

#nickname-panel {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: 16px;
  padding: 36px 32px;
  text-align: center;
  width: 320px;
  max-width: 90vw;
  backdrop-filter: blur(8px);
}

.nickname-icon {
  font-size: 48px;
  margin-bottom: 8px;
  animation: bounce 1s ease-in-out infinite;
}

.nickname-title {
  color: #00d4ff;
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 4px;
}

.nickname-subtitle {
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  margin-bottom: 24px;
}

#nickname-input {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  margin-bottom: 14px;
  outline: none;
  transition: border-color 0.2s;
}

#nickname-input::placeholder { color: rgba(255, 255, 255, 0.25); }
#nickname-input:focus { border-color: #00d4ff; }

#nickname-confirm {
  width: 100%;
  padding: 12px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  background: #00d4ff;
  color: #000;
  cursor: pointer;
  transition: background 0.2s;
}

#nickname-confirm:hover { background: #00b8d9; }
#nickname-confirm:active { transform: scale(0.97); }

.nickname-hint {
  color: rgba(255, 255, 255, 0.35);
  font-size: 11px;
  margin-top: 16px;
  line-height: 1.5;
}

/* 登录界面：在线玩家列表 */
.lobby-wrap {
  margin-top: 18px;
  text-align: left;
}
.lobby-head {
  color: rgba(255, 255, 255, 0.6);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
#lobby-count {
  background: rgba(0, 212, 255, 0.15);
  color: #00d4ff;
  border-radius: 8px;
  padding: 0 7px;
  font-size: 11px;
  min-width: 18px;
  text-align: center;
}
.lobby-list {
  max-height: 130px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-right: 2px;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 212, 255, 0.4) transparent;
}
.lobby-list::-webkit-scrollbar { width: 6px; }
.lobby-list::-webkit-scrollbar-thumb { background: rgba(0, 212, 255, 0.4); border-radius: 3px; }
.lobby-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #cfe7ff;
  font-size: 13px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 6px;
  padding: 5px 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lobby-item .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #46e08a;
  box-shadow: 0 0 6px #46e08a;
  flex: 0 0 auto;
}
.lobby-empty {
  color: rgba(255, 255, 255, 0.3);
  font-size: 12px;
  padding: 6px 2px;
}

/* ==================== 箱子系统 UI ==================== */
#chest-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: transparent;
  display: none;
  align-items: flex-start;
  justify-content: flex-end;
  z-index: 52;
  pointer-events: auto;
}

#chest-panel {
  width: 560px;
  max-width: 94vw;
  max-height: 86vh;
  margin: 50px 10px 10px 0;
  background: linear-gradient(135deg, #2a2014, #1c160e);
  border: 2px solid #c8923c;
  border-radius: 16px;
  padding: 18px;
  overflow-y: auto;
  box-shadow: 0 0 40px rgba(200,146,60,0.25), 0 8px 32px rgba(0,0,0,0.5);
  pointer-events: auto;
}
#chest-panel::-webkit-scrollbar { width: 6px; }
#chest-panel::-webkit-scrollbar-thumb { background: rgba(200,146,60,0.4); border-radius: 3px; }

.chest-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: #f0c070;
  padding: 9px 14px;
  border-radius: 10px;
  background: rgba(200,146,60,0.14);
  margin-bottom: 10px;
}
.chest-close-x {
  flex: 0 0 auto;
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: #c0d0e8;
  font-size: 18px; line-height: 1;
  cursor: pointer;
  transition: all 0.15s;
}
.chest-close-x:hover, .chest-close-x:active { background: rgba(255,120,120,0.35); color: #fff; }

.chest-body {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.chest-col { flex: 1 1 0; min-width: 0; }
.chest-col-title {
  font-size: 12px;
  color: #c0a070;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(200,146,60,0.2);
}
.chest-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
}
.chest-empty {
  text-align: center;
  color: #6a5a40;
  font-size: 13px;
  padding: 30px 0;
}
.chest-slot {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  background: rgba(0,0,0,0.25);
  border: 1px solid rgba(200,146,60,0.18);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.chest-slot.filled {
  background: rgba(255,255,255,0.05);
  border-color: rgba(200,146,60,0.4);
}
.chest-slot.filled:hover {
  background: rgba(200,146,60,0.12);
  border-color: rgba(200,146,60,0.6);
  transform: translateY(-2px);
}
.chest-slot canvas {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}
.chest-slot-count {
  position: absolute;
  bottom: 3px;
  right: 5px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: rgba(0,0,0,0.7);
  padding: 1px 5px;
  border-radius: 6px;
}
.chest-close-btn {
  position: sticky;
  bottom: 0;
  text-align: center;
  padding: 12px;
  margin-top: 14px;
  background: rgba(200,146,60,0.18);
  border: 1px solid rgba(200,146,60,0.45);
  border-radius: 10px;
  color: #f0c070;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
}
.chest-close-btn:hover, .chest-close-btn:active {
  background: rgba(200,146,60,0.32);
}

/* ===== 鼠标/触屏拖拽搬运物品（Java 版“拿起→跟随→放下”） ===== */
#drag-cursor {
  position: fixed;
  left: 0; top: 0;
  transform: translate(-50%, -60%);
  z-index: 9999;
  pointer-events: none;
  display: none;
  filter: drop-shadow(0 3px 4px rgba(0,0,0,0.55));
}
#drag-cursor canvas {
  display: block;
  width: 48px;
  height: 48px;
  image-rendering: pixelated;
  background: rgba(0,0,0,0.55);
  border: 2px solid rgba(255,255,255,0.9);
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
#drag-cursor .cnt {
  position: absolute;
  right: -6px; bottom: -6px;
  min-width: 20px;
  padding: 1px 5px;
  background: #fff;
  color: #1d1d1d;
  font-size: 13px;
  font-weight: 800;
  text-align: center;
  border-radius: 10px;
  border: 1px solid #000;
}

/* 可拖拽槽位：点击-拿起 / 拖拽-放下；竖滑滚动仍交给系统（触屏友好） */
.inv-slot, .inv-hotbar-slot, .chest-slot {
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}
/* 拿起物品后浮层由 game.js 的 refreshDragCursor() 显示/隐藏 */

/* V4.1 账户与设置 */
.account-tab { flex:1; padding:10px; border:1px solid rgba(0,212,255,.25); border-radius:8px; background:rgba(255,255,255,.06); color:#fff; cursor:pointer; }
.account-tab.active { background:rgba(0,212,255,.18); border-color:rgba(0,212,255,.65); }
#account-id-input,#account-name-input,#account-password-input,#account-nickname-input { width:100%; box-sizing:border-box; padding:12px 14px; margin-bottom:10px; border:1px solid rgba(0,212,255,.3); border-radius:8px; background:rgba(255,255,255,.06); color:#fff; outline:none; transition:border-color .2s; }
#account-id-input::placeholder,#account-name-input::placeholder,#account-password-input::placeholder,#account-nickname-input::placeholder { color:rgba(255,255,255,.25); }
#account-id-input:focus,#account-name-input:focus,#account-password-input:focus,#account-nickname-input:focus { border-color:#00d4ff; }
#account-message { min-height:20px; color:#ffcc66; margin:8px 0; }
#settings-overlay { position:fixed; inset:0; z-index:200; display:flex; align-items:center; justify-content:center; background:rgba(0,0,0,.55); backdrop-filter:blur(5px); }
#settings-overlay.hidden { display:none; }
#settings-panel { width:360px; max-width:90vw; padding:24px; background:rgba(12,18,28,.96); border:1px solid rgba(0,212,255,.35); border-radius:16px; color:#fff; }
#settings-panel .modal-title { font-size:22px; font-weight:700; margin-bottom:18px; color:#00d4ff; }
#settings-panel label { display:flex; align-items:center; justify-content:space-between; gap:14px; margin:14px 0; }
#settings-panel input[type=range] { flex:1; }
#settings-panel .setting-check { justify-content:flex-start; }
.settings-btn { right:62px; }
@media (max-width:600px){ #settings-panel{width:calc(100vw - 32px);} .settings-btn{right:62px;} }

/* V4.1.4：桌面设备绝不渲染触屏操作层；用于 Windows 触摸屏/二合一电脑的最终兜底。 */
html.desktop-device #mobile-controls,
body.desktop-device #mobile-controls {
  display: none !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

/* V4.1.4：创造模式提示 */
body.creative-mode #game-toast {
  border-color: rgba(255,215,80,.65);
  color: #ffe36b;
}

/* V4.2.1 mobile inventory/chat/settings fixes */
#inventory-overlay {
  overscroll-behavior: contain;
  touch-action: none;
}
#inventory-overlay .inventory-panel, #inventory-overlay .inventory-grid {
  overscroll-behavior: contain;
  touch-action: pan-y;
}
body.touch-device #btn-chat {
  right: 12px;
  top: 62px;
  z-index: 120;
}
body.touch-device .settings-btn {
  right: 12px;
  top: 12px;
  z-index: 121;
}
#drag-cursor {
  pointer-events: none !important;
  transform: translate(-50%,-50%) scale(1.12);
  opacity: .78;
  transition: transform .08s ease-out, opacity .08s ease-out;
}
#drag-cursor.drag-drop {
  transform: translate(-50%,-50%) scale(1);
  opacity: 1;
}


/* V4.2.4 Mobile UI isolation fix */
.inventory-panel,
#inventory,
.inventory-container {
  overscroll-behavior: contain;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

.inventory-grid,
.inventory-scroll {
  overscroll-behavior: contain;
  touch-action: pan-y;
}

#chat-btn, .chat-button {
  position: fixed;
  z-index: 1200;
}

#settings-btn, .settings-button {
  position: fixed;
  z-index: 1201;
}

@media (max-width: 900px) {
  #chat-btn, .chat-button {
    right: 18px;
    top: 140px;
  }
  #settings-btn, .settings-button {
    right: 18px;
    top: 80px;
  }
}


/* V4.2.5 mobile UI isolation */
.drag-preview-layer{
  position:fixed;
  pointer-events:none;
  z-index:5000;
  display:none;
  transform:scale(1.15);
  opacity:.78;
}
.inventory-panel,.inventory-scroll,.inventory-grid{
  overscroll-behavior:contain;
}
.chat-input-lock .mobile-controls,
.chat-input-lock canvas{
  pointer-events:none;
}
@media(max-width:900px){
  #chat-btn,.chat-button{right:20px;top:150px;}
  #settings-btn,.settings-button{right:20px;top:75px;}
  #btn-inventory{right:20px;top:225px;}
}

/* V4.2.6 mobile inventory fixes */
.inventory-touch-lock canvas{touch-action:none!important;}
#inventory-overlay,.inventory,.inventory-panel{overscroll-behavior:contain;touch-action:none;}
#drag-cursor{pointer-events:none;will-change:transform;transition:transform .08s ease;}

/* V4.3.1: one pointer controller owns touch scrolling and long-press dragging. */
#inventory-panel, #chest-panel, #crafting-panel,
.inv-slot, .inv-hotbar-slot, .chest-slot { touch-action:none; overscroll-behavior:contain; }
#inventory-panel, #chest-panel { max-height:calc(100dvh - 32px - var(--sa-top) - var(--sa-bottom)); }
#drag-cursor { position:fixed; z-index:10000; box-shadow:0 8px 20px #0009; opacity:.95; }
.inventory-drop-target { outline:3px solid #7fffc0; outline-offset:-3px; background:#235944!important; }
.inventory-dragging, .inventory-dragging * { cursor:grabbing!important; }
#coordinate-hud{position:fixed;left:calc(12px + var(--sa-left));top:calc(222px + var(--sa-top));z-index:45;padding:5px 8px;border-radius:6px;background:#101820cc;color:#e8fff6;font:12px monospace;pointer-events:none;}
#chest-password-dialog{margin:auto;padding:22px;background:#172334;color:white;border:1px solid #7cd9bc;border-radius:12px;max-width:90vw;}
#chest-password-dialog::backdrop{background:#0009;}
#chest-password-dialog input{display:block;margin:14px 0;padding:10px;width:240px;max-width:75vw;user-select:text;}
#chest-password-dialog button,.chest-security button{padding:8px;margin:4px;border:1px solid #64bfa1;border-radius:5px;background:#254b40;color:white;}
.chest-security{display:flex;flex-wrap:wrap;gap:4px;align-items:center;margin:8px 0;color:#b6d8cb;font-size:12px;}
@media(max-height:500px){#coordinate-hud{top:calc(82px + var(--sa-top));}}
.inv-equipment { display:flex; align-items:center; gap:12px; margin:12px 0; }
.inv-equipment-slot { min-width:74px; min-height:62px; padding:6px; border:1px dashed #7fffc0; border-radius:8px; text-align:center; }
.inv-equipment-slot canvas { display:block; margin:auto; }
body.touch-device #mobile-topbar { position:fixed; top:calc(64px + var(--sa-top)); right:calc(12px + var(--sa-right)); flex-direction:column; gap:8px; }
body.touch-device #mobile-topbar > button { position:static; width:44px; height:44px; }
body.touch-device #btn-chat { order:1; }
body.touch-device #btn-inventory { order:2; }
body.touch-device #btn-craft { order:3; }
body.touch-device #btn-settings { position:fixed; top:calc(12px + var(--sa-top)); right:calc(12px + var(--sa-right)); width:44px; height:44px; }
@media(max-height:500px) and (orientation:landscape) {
 body.touch-device #mobile-topbar { top:calc(12px + var(--sa-top)); right:calc(66px + var(--sa-right)); flex-direction:row; }
 #inventory-panel { margin:8px; }
}
@media(prefers-reduced-motion:reduce) { #drag-cursor { transition:none; } }

/* ===== 游戏设置 → 账号安全 ===== */
#setting-account-section { margin:18px 0 14px; padding:14px; border:1px solid rgba(0,212,255,.25); border-radius:12px; background:rgba(0,212,255,.05); }
#setting-account-section .setting-account-title { font-size:15px; font-weight:700; color:#00d4ff; margin-bottom:6px; }
#setting-account-section .setting-account-hint { font-size:12px; color:#9fb3c8; margin-bottom:10px; }
#setting-account-section input[type=password] { display:block; width:100%; box-sizing:border-box; margin:8px 0; padding:9px 10px; border-radius:8px; border:1px solid rgba(255,255,255,.18); background:#0d1320; color:#e8fff6; font-size:13px; }
#setting-account-section .setting-account-row { display:flex; align-items:center; gap:10px; margin-top:10px; flex-wrap:wrap; }
#setting-account-section .setting-account-msg { font-size:12px; color:#ff9b9b; }
#setting-account-section p.muted { font-size:11.5px; color:#7f93a8; margin:8px 0 0; }

/* ===== UI 修复：右上角 HUD 按钮统一错位，杜绝 🔊 / 🎤 / ⚙️ 叠在同一坐标 =====
   .hud-btn 默认 top:10 / right:10，而 #btn-mic 从未单独定位，导致它与静音键完全重叠。
   这里用高特异性规则统一安排三个按钮（放在文件末尾以覆盖历史各处 right 定义）。 */
.hud-btn#btn-mute,
.hud-btn#btn-mic,
.hud-btn#btn-settings { top: calc(10px + var(--sa-top)); }
.hud-btn#btn-mute     { right: calc(10px + var(--sa-right)); }
.hud-btn#btn-mic      { right: calc(62px + var(--sa-right)); }
.hud-btn#btn-settings { right: calc(114px + var(--sa-right)); }
/* 触屏：静音键已被 JS 移入顶部状态栏；设置键最右、麦克风左移一格 */
body.touch-device .hud-btn#btn-mute { display: none; }
body.touch-device .hud-btn#btn-mic  { right: calc(62px + var(--sa-right)); }
body.touch-device .hud-btn#btn-settings { top: calc(12px + var(--sa-top)); right: calc(10px + var(--sa-right)); }