:root {
  --bg-dark: #0a0806;
  --gold: #d4a373;
  --gold-dim: rgba(212,163,115,0.4);
  --paper: #f5e6c8;
  --ink: #1a1a1a;
  --board-display-size: auto;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { min-height: 100%; }

body {
  background: radial-gradient(ellipse at 30% 20%, #1e1208 0%, #0a0806 60%);
  min-height: 100vh;
  color: var(--paper);
  font-family: 'Noto Serif SC', serif;
  overflow: hidden;
}

/* ─── 粒子背景 ─── */
#particles { position: fixed; inset: 0; pointer-events: none; z-index: 0; }

/* ─── 游戏选择大厅 ─── */
#lobby {
  position: fixed; inset: 0; z-index: 100;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 60px; padding: 40px;
  overflow-y: auto;
  animation: fadeIn 1.5s ease;
}
#lobby.hide { animation: fadeOut 0.6s ease forwards; pointer-events: none; }

.lobby-title {
  text-align: center;
  display: flex; flex-direction: column; gap: 12px;
}
.lobby-title h1 {
  font-family: 'Ma Shan Zheng', cursive;
  font-size: clamp(3rem, 6vw, 5rem);
  color: var(--gold);
  letter-spacing: 12px;
  text-shadow: 0 0 60px rgba(212,163,115,0.4), 0 0 120px rgba(212,163,115,0.1);
  animation: glow 4s ease-in-out infinite;
}
@keyframes glow {
  0%,100% { text-shadow: 0 0 40px rgba(212,163,115,0.3); }
  50% { text-shadow: 0 0 80px rgba(212,163,115,0.6), 0 0 120px rgba(212,163,115,0.2); }
}
.lobby-title p {
  font-size: 0.75rem; letter-spacing: 8px;
  color: rgba(212,163,115,0.3);
}

.game-cards {
  display: flex; gap: 28px; flex-wrap: wrap; justify-content: center;
}
.game-card {
  width: 200px; padding: 36px 24px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(212,163,115,0.15);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.34,1.56,0.64,1);
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  position: relative; overflow: hidden;
}
.game-card::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(212,163,115,0.08) 0%, transparent 70%);
  opacity: 0; transition: opacity 0.4s;
}
.game-card:hover { 
  border-color: rgba(212,163,115,0.5);
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(212,163,115,0.2);
}
.game-card:hover::before { opacity: 1; }

.game-icon { font-size: 3rem; filter: drop-shadow(0 0 12px rgba(212,163,115,0.3)); }
.game-name { font-family: 'Ma Shan Zheng'; font-size: 1.6rem; color: var(--gold); letter-spacing: 4px; }
.game-tag {
  font-size: 0.7rem; letter-spacing: 3px;
  color: rgba(212,163,115,0.35);
}
.game-badge {
  position: absolute; top: 14px; right: 14px;
  background: rgba(212,163,115,0.1);
  border: 1px solid rgba(212,163,115,0.25);
  border-radius: 20px; padding: 3px 10px;
  font-size: 10px; color: var(--gold-dim); letter-spacing: 1px;
}

/* ─── 模式选择屏 ─── */
.mode-screen {
  position: fixed; inset: 0; z-index: 200;
  background: radial-gradient(ellipse at center, #1e1208 0%, #0a0806 100%);
  display: none; flex-direction: column; align-items: center; justify-content: center;
  gap: 50px; padding: 80px 24px 32px; overflow-y: auto; animation: fadeIn 0.5s ease;
}
.mode-screen.show { display: flex; }
.mode-screen.hide { animation: fadeOut 0.4s ease forwards; pointer-events: none; }

.mode-header { text-align: center; display: flex; flex-direction: column; gap: 10px; }
.mode-game-name {
  font-family: 'Ma Shan Zheng'; font-size: 3rem; color: var(--gold);
  letter-spacing: 10px;
}
.mode-subtitle { font-size: 0.75rem; letter-spacing: 4px; color: var(--gold-dim); }

.mode-cards {
  display: flex; gap: 24px; flex-wrap: wrap; justify-content: center;
}
.mode-card {
  width: 170px; padding: 30px 20px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(212,163,115,0.15);
  border-radius: 18px; cursor: pointer;
  transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1);
  text-align: center; display: flex; flex-direction: column; align-items: center; gap: 14px;
}
.mode-card:hover {
  background: rgba(212,163,115,0.08);
  border-color: rgba(212,163,115,0.55);
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}
.mode-icon { font-size: 2.6rem; }
.mode-name { font-size: 1rem; color: var(--gold); font-weight: 600; letter-spacing: 2px; }
.mode-desc { font-size: 0.72rem; color: rgba(245,230,200,0.4); line-height: 1.6; }

.mode-back {
  position: absolute; top: 24px; left: 24px;
  background: rgba(212,163,115,0.05); border: 1px solid var(--gold-dim);
  color: var(--gold-dim); padding: 7px 18px; border-radius: 20px;
  cursor: pointer; font-family: inherit; font-size: 12px; transition: 0.3s;
}
.mode-back:hover { background: rgba(212,163,115,0.12); color: var(--gold); }

/* ─── 棋色选择 ─── */
.color-screen {
  position: fixed; inset: 0; z-index: 1800;
  background: radial-gradient(circle at center, #2c1e12 0%, #0a0806 100%);
  display: none; flex-direction: column; align-items: center; justify-content: center;
  gap: 36px; padding: 80px 24px 32px; overflow-y: auto;
}
.color-screen.show { display: flex; animation: fadeIn 0.4s ease; }
.color-title { font-family: 'Ma Shan Zheng'; font-size: 2rem; color: var(--gold); letter-spacing: 6px; }
.color-cards { display: flex; gap: 24px; flex-wrap: wrap; justify-content: center; }
.color-card {
  width: 150px; padding: 28px 16px; border-radius: 16px;
  background: rgba(255,255,255,0.03); border: 1px solid rgba(212,163,115,0.2);
  text-align: center; cursor: pointer; transition: 0.35s;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
}
.color-card:hover {
  background: rgba(212,163,115,0.1); border-color: rgba(212,163,115,0.6);
  transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}
.color-piece { width: 52px; height: 52px; border-radius: 50%; }
.color-piece.black { background: radial-gradient(circle at 35% 35%, #666, #000); box-shadow: 0 4px 12px rgba(0,0,0,0.6); }
.color-piece.white { background: radial-gradient(circle at 35% 35%, #fff, #ccc); box-shadow: 0 4px 12px rgba(0,0,0,0.4); }
.color-name { font-size: 1rem; color: var(--gold); font-weight: 600; letter-spacing: 2px; }
.color-desc { font-size: 0.75rem; color: rgba(245,230,200,0.45); line-height: 1.5; }
.color-back {
  position: absolute; top: 24px; left: 24px;
  background: rgba(212,163,115,0.05); border: 1px solid var(--gold-dim);
  color: var(--gold-dim); padding: 7px 18px; border-radius: 20px;
  cursor: pointer; font-family: inherit; font-size: 12px; transition: 0.3s;
}
.color-back:hover { background: rgba(212,163,115,0.12); color: var(--gold); }

/* ─── 游戏主界面 ─── */
#game-wrapper {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  overflow: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.back-btn {
  position: fixed; top: 16px; left: 16px; z-index: 300;
  background: rgba(212,163,115,0.06); border: 1px solid rgba(212,163,115,0.25);
  color: rgba(212,163,115,0.7); padding: 7px 16px; border-radius: 20px;
  cursor: pointer; font-family: inherit; font-size: 12px;
  transition: 0.3s; display: none;
}
.back-btn:hover { background: rgba(212,163,115,0.15); color: var(--gold); }

.game-header { text-align: center; margin-bottom: 16px; display: none; }
.game-title {
  font-family: 'Ma Shan Zheng'; font-size: 2.5rem; letter-spacing: 8px;
  color: var(--gold); text-shadow: 0 0 20px rgba(212,163,115,0.3);
}
.game-subtitle { font-size: 0.7rem; letter-spacing: 5px; color: var(--gold-dim); margin-top: 4px; }

.controls { display: none; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; justify-content: center; }
.btn {
  background: rgba(212,163,115,0.05); border: 1px solid var(--gold);
  color: var(--gold); padding: 7px 16px; border-radius: 30px;
  cursor: pointer; transition: 0.35s; font-family: inherit; font-size: 0.8rem;
}
.btn:hover:not(.disabled) { background: var(--gold); color: var(--bg-dark); box-shadow: 0 0 20px var(--gold); }
.btn.disabled { opacity: 0.2; cursor: wait; border-style: dashed; }
.theme-group { display: flex; gap: 6px; align-items: center; }
.theme-dot {
  width: 20px; height: 20px; border-radius: 50%; cursor: pointer;
  border: 2px solid transparent; transition: 0.3s;
}
.theme-dot:hover, .theme-dot.active { border-color: var(--gold); transform: scale(1.2); }
.theme-dot.wood      { background: radial-gradient(#d4a05a, #8b5a2b); }
.theme-dot.bamboo    { background: radial-gradient(#b8cc7a, #5a7a2a); }
.theme-dot.porcelain { background: radial-gradient(#a8c8e8, #3a6a9a); }
.theme-dot.ink       { background: radial-gradient(#666, #111); }

.game-scene {
  display: none; gap: 24px; align-items: flex-start; justify-content: center; flex-wrap: wrap;
  width: 100%;
}

.info-sidebar { width: 190px; display: flex; flex-direction: column; gap: 12px; }
.player-box {
  padding: 14px; border-radius: 14px; background: rgba(0,0,0,0.4);
  border-left: 4px solid transparent; transition: 0.4s;
}
.player-box.active {
  border-left-color: var(--gold); background: rgba(212,163,115,0.08);
  transform: translateX(6px);
}
.timer-txt { font-family: 'Courier New', monospace; font-size: 1.5rem; color: var(--gold); margin-top: 6px; }
.poem-area {
  min-height: 60px; padding: 10px; border-top: 1px solid rgba(212,163,115,0.15);
  font-style: italic; color: rgba(245,230,200,0.5); text-align: center;
  line-height: 1.8; font-size: 0.8rem; transition: opacity 0.4s;
}

.board-container {
  padding: 14px; border-radius: 10px;
  box-shadow: 0 40px 100px rgba(0,0,0,0.8), inset 0 0 40px rgba(0,0,0,0.25);
  border: 4px solid #5d3a1a; background: #96633e;
  transition: background 0.6s, border-color 0.6s; position: relative;
  max-width: calc(100vw - 40px);
}
canvas { display: block; cursor: crosshair; }
#gameCanvas {
  width: var(--board-display-size);
  height: auto;
  max-width: 100%;
  touch-action: none;
}
.move-confirm { display: none; }

/* ─── 聊天面板 ─── */
.chat-panel { width: 170px; display: none; flex-direction: column; gap: 8px; }
.chat-label { font-size: 10px; color: rgba(212,163,115,0.4); letter-spacing: 2px; text-align: center; }
.chat-messages {
  height: 180px; overflow-y: auto; background: rgba(0,0,0,0.3);
  border: 1px solid rgba(212,163,115,0.12); border-radius: 10px;
  padding: 8px; display: flex; flex-direction: column; gap: 5px;
}
.chat-messages::-webkit-scrollbar { width: 3px; }
.chat-messages::-webkit-scrollbar-thumb { background: rgba(212,163,115,0.25); border-radius: 3px; }
.chat-msg {
  font-size: 11px; padding: 4px 8px; border-radius: 8px;
  background: rgba(212,163,115,0.07); color: rgba(245,230,200,0.8);
  word-break: break-all; animation: msgIn 0.3s ease;
}
.chat-msg.mine { background: rgba(212,163,115,0.18); text-align: right; }
.chat-msg.system { color: rgba(212,163,115,0.45); text-align: center; font-style: italic; font-size: 10px; background: none; }
@keyframes msgIn { from{opacity:0;transform:translateY(5px)} to{opacity:1;transform:none} }
.emoji-row { display: flex; flex-wrap: wrap; gap: 4px; justify-content: center; }
.emoji-btn {
  background: rgba(212,163,115,0.07); border: 1px solid rgba(212,163,115,0.15);
  border-radius: 5px; padding: 3px 5px; cursor: pointer; font-size: 14px; transition: 0.2s;
}
.emoji-btn:hover { background: rgba(212,163,115,0.22); transform: scale(1.15); }
.chat-input-row { display: flex; gap: 4px; }
.chat-input {
  flex: 1; background: rgba(0,0,0,0.3); border: 1px solid rgba(212,163,115,0.18);
  border-radius: 7px; padding: 5px 7px; color: var(--paper);
  font-family: inherit; font-size: 11px; outline: none;
}
.chat-input:focus { border-color: rgba(212,163,115,0.45); }
.chat-send {
  background: rgba(212,163,115,0.12); border: 1px solid rgba(212,163,115,0.25);
  color: var(--gold); border-radius: 7px; padding: 5px 7px;
  cursor: pointer; font-size: 11px; transition: 0.2s;
}
.chat-send:hover { background: rgba(212,163,115,0.28); }

/* ─── 弹窗通用 ─── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  display: none; align-items: center; justify-content: center; z-index: 500;
}
.modal-overlay.show { display: flex; animation: fadeIn 0.3s; }
.modal-box {
  background: linear-gradient(160deg,#2c1e12,#1a0f06);
  border: 1px solid rgba(212,163,115,0.35); border-radius: 16px;
  padding: 28px 36px; text-align: center;
}
.modal-box h3 { font-family:'Ma Shan Zheng'; font-size:1.6rem; color:var(--gold); margin-bottom:10px; }
.modal-box p  { color:rgba(245,230,200,0.65); margin-bottom:20px; font-size:0.85rem; }
.modal-btns   { display:flex; gap:10px; justify-content:center; }

/* ─── 断线提醒 ─── */
.conn-banner {
  position: fixed; left: 50%; top: 50%;
  width: min(92vw, 360px);
  padding: 22px 20px 18px;
  background: linear-gradient(160deg, rgba(56,20,12,0.96), rgba(24,8,6,0.96));
  border: 1px solid rgba(212,163,115,0.28);
  border-radius: 18px;
  color: #fff;
  text-align: center;
  box-shadow: 0 24px 70px rgba(0,0,0,0.6);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.96);
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 999;
}
.conn-banner.show {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}
.conn-banner-icon {
  width: 44px; height: 44px; margin: 0 auto 12px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(212,163,115,0.12);
  border: 1px solid rgba(212,163,115,0.22);
  font-size: 20px;
}
.conn-banner-title {
  font-family: 'Ma Shan Zheng', cursive;
  font-size: 1.7rem;
  color: var(--gold);
  letter-spacing: 4px;
  margin-bottom: 8px;
}
.conn-banner-text {
  color: rgba(245,230,200,0.78);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 14px;
}
.conn-banner-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
}
.conn-banner-btn {
  min-width: 110px;
  background: rgba(212,163,115,0.12);
  border: 1px solid rgba(212,163,115,0.3);
  color: var(--gold);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  font-family: inherit;
  transition: 0.2s;
}
.conn-banner-btn:hover { background: rgba(212,163,115,0.24); }
.conn-banner-btn.primary {
  background: rgba(212,163,115,0.92);
  color: #1c1209;
  border-color: rgba(212,163,115,0.92);
}
.conn-banner-btn.primary:hover { background: #e0b180; }

/* ─── 胜利弹窗 ─── */
.win-modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.95);
  display: none; align-items: center; justify-content: center; z-index: 1000;
  flex-direction: column;
}
.win-modal.show { display: flex; animation: fadeIn 1s; }

/* ─── 等待房间 ─── */
.waiting-room {
  position: fixed; inset: 0; z-index: 1500;
  background: radial-gradient(circle at center, #2c1e12 0%, #0a0806 100%);
  display: none; flex-direction: column; align-items: center; justify-content: center;
  gap: 24px;
}
.waiting-room.show { display: flex; animation: fadeIn 0.5s ease; }
.waiting-title { font-family: 'Ma Shan Zheng'; font-size: 2rem; color: var(--gold); letter-spacing: 6px; }
.waiting-desc { font-size: 0.8rem; color: rgba(245,230,200,0.45); letter-spacing: 2px; }
.waiting-link-box {
  display: flex; gap: 10px; align-items: center;
  background: rgba(255,255,255,0.03); border: 1px solid rgba(212,163,115,0.2);
  border-radius: 12px; padding: 12px 16px; max-width: 440px; width: 90%;
}
.waiting-link-text { flex: 1; font-size: 11px; color: rgba(245,230,200,0.45); word-break: break-all; line-height: 1.5; }
.waiting-copy-btn {
  flex-shrink: 0; background: rgba(212,163,115,0.12);
  border: 1px solid rgba(212,163,115,0.35); color: var(--gold);
  border-radius: 8px; padding: 7px 14px; cursor: pointer;
  font-family: inherit; font-size: 11px; transition: 0.2s; white-space: nowrap;
}
.waiting-copy-btn:hover { background: rgba(212,163,115,0.28); }
.waiting-spinner-wrap { display: flex; align-items: center; gap: 10px; color: rgba(212,163,115,0.5); font-size: 12px; }
.waiting-spinner {
  width: 20px; height: 20px; border: 2px solid rgba(212,163,115,0.12);
  border-top-color: var(--gold); border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

/* ─── AI指导：辅助分析模式 ─── */
.coach-panel {
  width: 280px; max-height: 560px; background: rgba(14,10,7,0.92);
  border: 1px solid rgba(212,163,115,0.24); border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 18px 48px rgba(0,0,0,0.5);
  backdrop-filter: blur(14px);
  display: none; z-index: 220;
}
.coach-panel.show { display: block; animation: coachRise 0.28s ease forwards; }
@keyframes coachRise { from{opacity:0;transform:translateX(18px)} to{opacity:1;transform:translateX(0)} }
.coach-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 12px 8px; background: rgba(212,163,115,0.06);
  border-bottom: 1px solid rgba(212,163,115,0.1);
}
.coach-kicker {
  display: block; margin-bottom: 2px;
  font-size: 9px; color: rgba(212,163,115,0.45); letter-spacing: 2px;
}
.coach-title { display: block; font-size: 13px; font-weight: 700; color: var(--gold); letter-spacing: 1px; }
.coach-close {
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(212,163,115,0.06); border: 1px solid rgba(212,163,115,0.12);
  color: rgba(212,163,115,0.55); cursor: pointer; font-size: 13px; transition: 0.2s;
}
.coach-close:hover { color: var(--gold); background: rgba(212,163,115,0.14); }
.coach-mode-tabs {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
  padding: 8px 12px 0;
}
.coach-mode-tab {
  min-height: 30px; border-radius: 8px;
  background: rgba(255,255,255,0.03); border: 1px solid rgba(212,163,115,0.14);
  color: rgba(245,230,200,0.58); cursor: pointer; font-family: inherit; font-size: 12px;
  transition: 0.2s;
}
.coach-mode-tab:hover { color: var(--gold); border-color: rgba(212,163,115,0.32); }
.coach-mode-tab.active {
  color: #1c1209; background: rgba(212,163,115,0.92); border-color: rgba(212,163,115,0.92);
}
.coach-loading { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 16px 14px; color: rgba(212,163,115,0.55); font-size: 12px; }
.coach-spinner { width: 18px; height: 18px; border: 2px solid rgba(212,163,115,0.12); border-top-color: var(--gold); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to{transform:rotate(360deg)} }
.coach-content { padding: 10px 12px 12px; display: flex; flex-direction: column; gap: 8px; }
.coach-section {
  font-size: 13px; line-height: 1.55; color: rgba(245,230,200,0.84);
  background: rgba(255,255,255,0.025); border-radius: 8px; padding: 10px 12px;
  border-left: 3px solid rgba(212,163,115,0.45);
}
.coach-primary {
  display: none; align-items: center; justify-content: space-between; gap: 10px;
  padding: 9px 10px; border-radius: 8px; background: rgba(212,163,115,0.08);
  border: 1px solid rgba(212,163,115,0.16);
  color: rgba(245,230,200,0.78); font-size: 12px; line-height: 1.5;
}
.coach-primary.show { display: flex; }
.coach-primary strong { color: var(--gold); font-size: 15px; white-space: nowrap; }
.coach-legend { display: flex; gap: 12px; padding: 4px 2px; flex-wrap: wrap; }
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 10px; color: rgba(245,230,200,0.5); }
.legend-dot { width: 11px; height: 11px; border-radius: 50%; border: 2px solid; flex-shrink: 0; }
.legend-dot.attack  { background: rgba(80,220,120,0.22); border-color: #50dc78; }
.legend-dot.defend  { background: rgba(220,80,80,0.22);  border-color: #dc5050; }
.legend-dot.threat  { background: rgba(255,180,0,0.18);  border-color: #ffb400; }
.coach-moves { display: grid; grid-template-columns: 1fr; gap: 6px; }
.coach-move-item { display: flex; align-items: flex-start; gap: 7px; font-size: 11px; color: rgba(245,230,200,0.68); padding: 7px 8px; background: rgba(255,255,255,0.025); border-radius: 7px; border: 1px solid rgba(255,255,255,0.045); }
.move-badge { flex-shrink: 0; width: 16px; height: 16px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 8px; font-weight: 700; margin-top: 1px; }
.move-badge.attack { background: rgba(80,220,120,0.22); color: #50dc78; border: 1px solid #50dc78; }
.move-badge.defend { background: rgba(220,80,80,0.22);  color: #dc5050; border: 1px solid #dc5050; }
.coach-warning { background: rgba(255,120,0,0.08); border: 1px solid rgba(255,120,0,0.3); border-radius: 7px; padding: 8px 10px; font-size: 11px; color: rgba(255,180,80,0.88); line-height: 1.6; }
.coach-refresh {
  align-self: flex-end; background: transparent; border: 0; color: rgba(212,163,115,0.65);
  cursor: pointer; font-family: inherit; font-size: 11px; padding: 2px 0;
}
.coach-refresh:hover { color: var(--gold); }
.btn.coach-active { background: rgba(212,163,115,0.18); box-shadow: 0 0 12px rgba(212,163,115,0.25); }

@media (max-width: 720px) {
  body { overflow: hidden; }
  #lobby {
    justify-content: flex-start;
    min-height: 100dvh;
    gap: 28px;
    padding: 44px 16px 28px;
  }
  .lobby-title h1 { font-size: 3.2rem; letter-spacing: 8px; }
  .lobby-title p { font-size: 0.65rem; letter-spacing: 4px; }
  .game-cards, .mode-cards, .color-cards { width: 100%; gap: 12px; }
  .game-card {
    width: min(100%, 340px);
    min-height: 116px;
    padding: 18px 18px;
    border-radius: 14px;
    gap: 8px;
  }
  .game-icon { font-size: 2.2rem; }
  .game-name { font-size: 1.35rem; }
  .mode-screen, .color-screen {
    justify-content: flex-start;
    min-height: 100dvh;
    gap: 28px;
    padding: calc(64px + env(safe-area-inset-top)) 16px 28px;
  }
  .mode-game-name { font-size: 2.3rem; letter-spacing: 6px; }
  .mode-card, .color-card {
    width: min(100%, 340px);
    padding: 18px 16px;
    border-radius: 14px;
  }
  .mode-back, .color-back, .back-btn {
    top: calc(12px + env(safe-area-inset-top));
    left: calc(12px + env(safe-area-inset-left));
  }
  #game-wrapper {
    align-items: stretch;
    padding: calc(48px + env(safe-area-inset-top)) 10px calc(18px + env(safe-area-inset-bottom));
  }
  .game-header {
    align-self: center;
    margin-bottom: 8px;
  }
  .game-title { font-size: 1.75rem; letter-spacing: 4px; }
  .game-subtitle { font-size: 0.58rem; letter-spacing: 2px; }
  .controls {
    width: 100%;
    gap: 8px;
    margin-bottom: 10px;
  }
  .btn {
    min-height: 34px;
    padding: 7px 10px;
    font-size: 0.74rem;
  }
  .theme-group {
    flex: 1 1 100%;
    justify-content: center;
    padding-top: 2px;
  }
  .theme-dot { width: 24px; height: 24px; }
  .game-scene {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
  .board-container {
    order: 1;
    width: fit-content;
    max-width: calc(100vw - 24px);
    padding: 6px;
    border-width: 2px;
    box-shadow: 0 10px 26px rgba(0,0,0,0.55), inset 0 0 14px rgba(0,0,0,0.18);
  }
  #gameCanvas {
    width: min(var(--board-display-size), calc(100vw - 40px));
    max-height: calc(100svh - 245px);
    object-fit: contain;
  }
  .move-confirm {
    order: 2;
    display: none;
    width: 100%;
    gap: 8px;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    border: 1px solid rgba(212,163,115,0.2);
    border-radius: 10px;
    background: rgba(0,0,0,0.28);
  }
  .move-confirm.visible { display: flex; }
  .move-confirm.ready {
    background: rgba(212,163,115,0.1);
    border-color: rgba(212,163,115,0.42);
  }
  .move-confirm-text {
    min-width: 0;
    color: rgba(245,230,200,0.78);
    font-size: 0.78rem;
    line-height: 1.35;
  }
  .move-confirm-actions {
    display: flex;
    flex-shrink: 0;
    gap: 8px;
  }
  .move-confirm-btn {
    min-height: 34px;
    border-radius: 999px;
    padding: 7px 12px;
    border: 1px solid rgba(212,163,115,0.32);
    font-family: inherit;
    font-size: 0.76rem;
  }
  .move-confirm-btn.primary {
    background: rgba(212,163,115,0.94);
    color: #1c1209;
  }
  .move-confirm-btn.primary:disabled {
    opacity: 0.45;
  }
  .move-confirm-btn.secondary {
    background: rgba(212,163,115,0.06);
    color: rgba(245,230,200,0.72);
  }
  .info-sidebar {
    order: 3;
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }
  .player-box {
    flex: 1 1 calc(50% - 4px);
    min-width: 0;
    padding: 10px 12px;
    border-radius: 10px;
  }
  .player-box.active { transform: none; }
  .timer-txt { font-size: 1.15rem; }
  .poem-area {
    flex: 1 1 100%;
    min-height: 42px;
    padding: 8px;
    font-size: 0.74rem;
    line-height: 1.6;
  }
  .coach-panel { width: min(100%, 560px); max-height: none; }
  .coach-panel { order: 4; }
  .coach-moves { grid-template-columns: 1fr; }
  .coach-primary { align-items: flex-start; flex-direction: column; }
  .chat-panel {
    order: 5;
    width: 100%;
  }
  .chat-messages { height: 120px; }
  .lobby-title h1 { animation: none; }
  .coach-panel { backdrop-filter: none; }
  .btn:hover:not(.disabled) { box-shadow: none; }
  .capture-info { flex: 1 1 100%; }
  .waiting-room { padding: 32px 16px; }
  .waiting-title { font-size: 1.8rem; letter-spacing: 4px; }
  .waiting-link-box {
    flex-direction: column;
    align-items: stretch;
  }
  .waiting-copy-btn { min-height: 38px; }
}

@media (max-width: 380px) {
  .btn { flex: 1 1 calc(50% - 8px); }
  .game-title { font-size: 1.55rem; }
  #gameCanvas { max-height: calc(100svh - 230px); }
}

/* 围棋特有：提子计数 */
.capture-info { display: flex; justify-content: space-between; padding: 8px 12px; background: rgba(0,0,0,0.25); border-radius: 10px; font-size: 12px; }
.capture-item { display: flex; flex-direction: column; align-items: center; gap: 3px; }
.capture-label { font-size: 10px; color: var(--gold-dim); }
.capture-count { font-size: 1.2rem; color: var(--gold); font-family: 'Courier New', monospace; }

/* 国际象棋：被吃棋子 */
.chess-captured { display: flex; flex-wrap: wrap; gap: 2px; min-height: 28px; padding: 5px; background: rgba(0,0,0,0.2); border-radius: 8px; }

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

/* 积分标签 */
.score-label { font-size: 11px; color: var(--gold-dim); margin-top: 2px; }

/* 国际象棋提示格 */
.chess-hint { fill: rgba(255,215,0,0.35); }