/* ==========================================================
   CYBER GOMOKU · 赛博五子棋 — 全局样式
   ========================================================== */

:root {
  --bg: #05060f;
  --bg2: #0a0c1c;
  --cyan: #00f0ff;
  --cyan-dim: rgba(0, 240, 255, 0.4);
  --magenta: #ff2ecc;
  --magenta-dim: rgba(255, 46, 204, 0.4);
  --purple: #a855f7;
  --gold: #ffd700;
  --green: #39ff14;
  --red: #ff3b5c;
  --text: #e8f4ff;
  --text-dim: #8fa3c0;
  --panel: rgba(10, 14, 32, 0.72);
  --panel-border: rgba(0, 240, 255, 0.25);
  --glow-cyan: 0 0 12px rgba(0, 240, 255, 0.6);
  --glow-magenta: 0 0 12px rgba(255, 46, 204, 0.6);
  --radius: 14px;
  --font-display: 'Orbitron', 'Rajdhani', sans-serif;
  --font-body: 'Rajdhani', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
input, select {
  font-family: var(--font-body);
  color: var(--text);
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 8px;
  padding: 9px 12px;
  width: 100%;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
input:focus, select:focus {
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}
kbd {
  display: inline-block;
  padding: 1px 7px;
  border: 1px solid var(--cyan);
  border-bottom-width: 3px;
  border-radius: 5px;
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 0.72rem;
  background: rgba(0, 240, 255, 0.08);
  letter-spacing: 1px;
}
.hidden { display: none !important; }

/* ---------------- 背景层 ---------------- */
.bg-canvas-wrap {
  position: fixed;
  inset: 0;
  z-index: 0;
}
#bgCanvas { width: 100%; height: 100%; display: block; }

.scanlines {
  position: fixed; inset: 0; z-index: 40; pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(0, 0, 0, 0.12) 3px,
    rgba(0, 0, 0, 0.12) 4px
  );
  opacity: 0.55;
  mix-blend-mode: overlay;
}
.grain {
  position: fixed; inset: 0; z-index: 41; pointer-events: none; opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.7'/%3E%3C/svg%3E");
}
.vignette {
  position: fixed; inset: 0; z-index: 42; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(2, 3, 10, 0.75) 100%);
}

/* 全局红蓝分裂闪光（转场/大特效时由 JS 添加 .chroma-flash） */
.chroma-flash {
  position: fixed; inset: 0; z-index: 45; pointer-events: none; opacity: 0;
  background: linear-gradient(90deg, rgba(255, 46, 204, 0.18), transparent 40%, rgba(0, 240, 255, 0.18));
}
.chroma-flash.on { animation: chromaFlash 0.5s ease-out; }
@keyframes chromaFlash {
  0% { opacity: 0; }
  20% { opacity: 1; }
  100% { opacity: 0; }
}

/* ---------------- 公告弹幕 ---------------- */
.danmaku {
  position: fixed; inset: 0; z-index: 85;
  pointer-events: none;
  overflow: hidden;
}
.danm-item {
  position: absolute;
  left: 100vw;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 1px;
  color: var(--cyan);
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.8);
  background: rgba(8, 10, 24, 0.55);
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 30px;
  padding: 4px 14px;
  opacity: 0.92;
  animation: danmMove linear forwards;
}
.danm-item.important {
  color: var(--gold);
  border-color: rgba(255, 215, 0, 0.5);
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.8);
  background: rgba(40, 30, 5, 0.6);
}
@keyframes danmMove {
  from { transform: translateX(0); }
  to { transform: translateX(calc(-100vw - 100%)); }
}

/* ---------------- 公告横幅（重要/紧急，非对局顶部与对局内棋盘上方） ---------------- */
.ann-banner {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  top: 62px;
  z-index: 84;
  max-width: 80vw;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 1px;
  color: var(--gold);
  border: 1px solid rgba(255, 215, 0, 0.4);
  background: rgba(8, 10, 24, 0.88);
  border-radius: 30px;
  padding: 6px 16px;
  box-shadow: 0 0 14px rgba(255, 215, 0, 0.25);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: opacity 0.4s ease, top 0.4s ease;
}
.ann-banner.on { opacity: 1; }
.ann-banner.in-game { top: 80px; }

/* ---------------- 公告中心（历史列表弹层） ---------------- */
.ann-center {
  position: fixed; inset: 0; z-index: 110;
  display: flex; align-items: center; justify-content: center;
  background: rgba(3, 4, 12, 0.7);
  backdrop-filter: blur(6px);
}
.ann-center-box {
  width: min(520px, 92vw);
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  border-radius: 14px;
  border: 1px solid rgba(0, 240, 255, 0.25);
  background: rgba(10, 14, 32, 0.95);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
  overflow: hidden;
}
.ann-center-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.15);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: var(--cyan);
}
.ann-center-head .chat-close { display: flex; }
.ann-center-list {
  overflow-y: auto;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ann-item {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(143, 163, 192, 0.2);
  background: rgba(0, 240, 255, 0.03);
}
.ann-item.important { border-color: rgba(255, 215, 0, 0.4); background: rgba(255, 215, 0, 0.04); }
.ann-item.urgent { border-color: rgba(255, 59, 92, 0.5); background: rgba(255, 59, 92, 0.05); }
.ann-item .ai-text { color: var(--text); font-size: 0.88rem; line-height: 1.5; word-break: break-word; }
.ann-item .ai-meta { display: flex; align-items: center; gap: 8px; margin-top: 6px; font-size: 0.7rem; color: var(--text-dim); flex-wrap: wrap; }
.ann-item .ai-type { padding: 1px 8px; border-radius: 20px; white-space: nowrap; }
.ann-item.normal .ai-type { color: var(--cyan); border: 1px solid var(--cyan); }
.ann-item.important .ai-type { color: var(--gold); border: 1px solid var(--gold); }
.ann-item.urgent .ai-type { color: var(--red); border: 1px solid var(--red); }
.ann-item .ai-state { margin-left: auto; white-space: nowrap; }
.ann-item .ai-state.ok { color: var(--green); }
.ann-item .ai-state.off { color: var(--red); }
.ann-item .ai-time { white-space: nowrap; }

/* 后台公告管理表单 */
.ann-form-row { flex-wrap: wrap; }
.ann-field-label { font-size: 0.72rem; color: var(--text-dim); white-space: nowrap; }
#admAnnStart, #admAnnEnd { width: 170px; }
#admAnnDaily { width: 90px; }

/* ---------------- 移动端落子二次确认气泡 ---------------- */
.confirm-pop {
  position: fixed;
  z-index: 96;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(8, 10, 24, 0.96);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 18px rgba(0, 240, 255, 0.35);
  transform: translate(-50%, -100%);
  animation: msgIn 0.2s ease-out;
}
.confirm-pop .cp-text {
  font-size: 0.75rem;
  color: var(--text);
  white-space: nowrap;
}
.confirm-pop button {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 1px;
  min-width: 58px;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.15s;
}
.confirm-pop .cp-yes { color: var(--green); border: 1px solid var(--green); background: rgba(57, 255, 20, 0.1); }
.confirm-pop .cp-yes:active { background: var(--green); color: #04121a; }
.confirm-pop .cp-no { color: var(--red); border: 1px solid var(--red); background: rgba(255, 59, 92, 0.1); }
.confirm-pop .cp-no:active { background: var(--red); color: #1a0308; }

/* ---------------- 顶栏 ---------------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  height: 52px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 18px;
  background: linear-gradient(180deg, rgba(5, 6, 15, 0.85), rgba(5, 6, 15, 0.3));
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
  backdrop-filter: blur(8px);
  animation: fadeDown 0.4s ease-out;
}
.topbar-brand {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: 3px;
  font-size: 1rem;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}
.topbar-brand span { color: var(--magenta); text-shadow: var(--glow-magenta); }
.topbar-user {
  display: flex; align-items: center; gap: 10px;
}
.tu-avatar {
  font-size: 1.4rem;
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(0, 240, 255, 0.12);
  border: 1px solid var(--panel-border);
  box-shadow: var(--glow-cyan);
}
.tu-info { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.2; }
.tu-name {
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--text);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tu-nav {
  font-size: 0.7rem;
  color: var(--cyan);
  padding: 0;
  border-bottom: 1px dashed rgba(0, 240, 255, 0.4);
}
.tu-nav:hover { color: var(--magenta); border-color: var(--magenta); }
.tu-nav + .tu-nav { margin-left: 8px; }

/* ---------------- 屏幕切换 ---------------- */
#app {
  position: fixed; inset: 0; z-index: 50;
}
.screen {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transform: translateY(12px) scale(0.985);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.screen.active {
  opacity: 1; pointer-events: auto;
  transform: none;
}

/* 顶部固定导航栏（52px）避让：带顶栏的屏幕内容区整体下移，避免面板/卡片被顶栏遮挡 */
#screen-menu, #screen-pve, #screen-online, #screen-rank, #screen-personal, #screen-admin {
  padding-top: 52px;
}

/* ---------------- 按钮 ---------------- */
.btn-neon {
  position: relative;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 2px;
  padding: 12px 26px;
  border-radius: 10px;
  color: var(--cyan);
  border: 1px solid var(--cyan);
  background: rgba(0, 240, 255, 0.06);
  box-shadow: inset 0 0 14px rgba(0, 240, 255, 0.1), var(--glow-cyan);
  transition: all 0.2s ease;
  overflow: hidden;
}
.btn-neon::before {
  content: '';
  position: absolute; top: 0; left: -120%;
  width: 60%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-25deg);
  transition: left 0.5s ease;
}
.btn-neon:hover { color: #04121a; background: var(--cyan); box-shadow: 0 0 24px rgba(0, 240, 255, 0.9); }
.btn-neon:hover::before { left: 160%; }
.btn-neon.primary {
  color: var(--magenta);
  border-color: var(--magenta);
  background: rgba(255, 46, 204, 0.07);
  box-shadow: inset 0 0 14px rgba(255, 46, 204, 0.12), var(--glow-magenta);
}
.btn-neon.primary:hover { color: #1a0310; background: var(--magenta); box-shadow: 0 0 26px rgba(255, 46, 204, 0.95); }
.btn-neon.ghost { background: transparent; box-shadow: none; }
.btn-neon.ghost:hover { color: var(--bg); }
.btn-neon.big { font-size: 1.05rem; padding: 15px 40px; }
.btn-neon:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.btn-neon.sm { font-size: 0.78rem; padding: 8px 16px; letter-spacing: 1px; }
.btn-neon.block { width: 100%; }

/* ---------------- 面板 / 字段 ------------ */
.panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.12), inset 0 0 40px rgba(0, 240, 255, 0.03);
  backdrop-filter: blur(14px);
  padding: 28px;
  width: min(560px, 92vw);
  max-height: 90vh;
  overflow-y: auto;
  animation: panelIn 0.45s cubic-bezier(0.2, 0.9, 0.3, 1.2);
}
@keyframes panelIn {
  from { opacity: 0; transform: translateY(26px) scale(0.96); }
  to { opacity: 1; transform: none; }
}
.panel-close {
  position: absolute; top: 12px; right: 14px;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1px solid rgba(255, 59, 92, 0.5);
  color: var(--red);
  font-size: 0.9rem;
  transition: all 0.2s;
}
.panel-close:hover { background: var(--red); color: #fff; box-shadow: 0 0 16px rgba(255, 59, 92, 0.7); }

.field { margin-bottom: 14px; }
.field label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

/* ---------------- 封面 ---------------- */
#screen-cover {
  position: relative;
  align-items: center;
}
.cover-inner {
  display: flex; flex-direction: column; align-items: center;
  gap: 20px;
  padding: 3vh 0 12vh;
  max-width: 94vw;
  animation: fadeUp 0.8s ease-out;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: none; }
}
.cover-logo { text-align: center; }
.logo-chip {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 4px;
  color: var(--gold);
  border: 1px solid rgba(255, 215, 0, 0.5);
  padding: 3px 12px;
  border-radius: 6px;
  margin-bottom: 18px;
  background: rgba(255, 215, 0, 0.06);
  animation: chipPulse 1.6s ease-in-out infinite;
}
@keyframes chipPulse { 0%, 100% { opacity: 0.75; } 50% { opacity: 1; } }

.glitch-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 5.4vw, 3.6rem);
  letter-spacing: 0.1em;
  white-space: nowrap;
  color: var(--cyan);
  position: relative;
  text-shadow: 0 0 24px rgba(0, 240, 255, 0.8), 0 0 60px rgba(0, 240, 255, 0.4);
  animation: glitchFlicker 5s infinite;
}
.glitch-title::before,
.glitch-title::after {
  content: attr(data-text);
  position: absolute; inset: 0;
  opacity: 0.8;
  white-space: nowrap;
}
.glitch-title::before {
  color: var(--magenta);
  transform: translate(3px, -2px);
  clip-path: polygon(0 0, 100% 0, 100% 34%, 0 34%);
  animation: glitchSlice 3.2s infinite linear alternate;
}
.glitch-title::after {
  color: var(--green);
  transform: translate(-3px, 2px);
  clip-path: polygon(0 66%, 100% 66%, 100% 100%, 0 100%);
  animation: glitchSlice 2.8s infinite linear alternate;
}
@keyframes glitchSlice {
  0% { transform: translate(2px, -1px); }
  20% { transform: translate(-3px, 2px); }
  40% { transform: translate(4px, 1px); }
  60% { transform: translate(-2px, -3px); }
  80% { transform: translate(3px, -2px); }
  100% { transform: translate(-4px, 2px); }
}
@keyframes glitchFlicker {
  0%, 100% { opacity: 1; }
  92% { opacity: 1; }
  93% { opacity: 0.4; }
  94% { opacity: 1; }
  96% { opacity: 0.7; }
  97% { opacity: 1; }
}
.cover-sub {
  font-family: var(--font-display);
  font-size: clamp(0.9rem, 3vw, 1.4rem);
  letter-spacing: 0.6em;
  color: var(--magenta);
  text-shadow: var(--glow-magenta);
  margin-top: 8px;
}
.cover-tagline {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap; justify-content: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  letter-spacing: 1px;
}
.cover-tagline .tg { color: var(--cyan); }
.cover-tagline i { color: var(--magenta); }
.cover-menu {
  display: flex; flex-direction: column; align-items: center;
  gap: 14px; width: min(320px, 80vw);
}
.cover-menu .btn-neon { width: 100%; }
.cover-hint {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-align: center;
  line-height: 1.8;
}
.cover-footer {
  position: absolute; bottom: 14px; left: 0; right: 0;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 2px;
  color: rgba(0, 240, 255, 0.65);
  text-shadow: var(--glow-cyan);
  pointer-events: none;
}

/* ---------------- 登录 / 注册 ---------------- */
.auth-tabs {
  display: flex; gap: 10px;
  margin-bottom: 20px;
}
.auth-tab {
  flex: 1;
  padding: 10px;
  font-family: var(--font-display);
  letter-spacing: 3px;
  font-size: 0.85rem;
  color: var(--text-dim);
  border: 1px solid rgba(143, 163, 192, 0.3);
  border-radius: 8px;
  transition: all 0.2s;
}
.auth-tab.active {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(0, 240, 255, 0.1);
  box-shadow: var(--glow-cyan);
}
.auth-panel h2 { font-family: var(--font-display); letter-spacing: 4px; margin-bottom: 18px; }
.auth-tip {
  margin-top: 14px;
  font-size: 0.75rem;
  color: var(--text-dim);
  text-align: center;
}
.auth-tip b { color: var(--gold); }

/* ---------------- 主菜单 ---------------- */
.menu-panel { width: min(640px, 92vw); text-align: center; }
.menu-title {
  font-family: var(--font-display);
  letter-spacing: 5px;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
  margin-bottom: 24px;
  font-size: 1.15rem;
}
.menu-modes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}
.mode-card {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 26px 20px;
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: var(--radius);
  background: rgba(0, 240, 255, 0.03);
  transition: all 0.25s;
}
.mode-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.35);
  border-color: var(--cyan);
}
.mode-card.pve:hover { box-shadow: 0 0 30px rgba(255, 46, 204, 0.35); border-color: var(--magenta); }
.mode-icon {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid rgba(0, 240, 255, 0.45);
  color: var(--cyan);
  background: rgba(0, 240, 255, 0.08);
  box-shadow: var(--glow-cyan);
}
.mode-card.pve .mode-icon {
  border-color: rgba(255, 46, 204, 0.45);
  color: var(--magenta);
  background: rgba(255, 46, 204, 0.08);
  box-shadow: var(--glow-magenta);
}
.mode-card.online .mode-icon {
  border-color: rgba(57, 255, 20, 0.4);
  color: var(--green);
  background: rgba(57, 255, 20, 0.08);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.35);
}
.mode-name { font-family: var(--font-display); font-size: 1rem; letter-spacing: 2px; }
.mode-card.pve .mode-name { color: var(--magenta); }
.mode-desc { font-size: 0.8rem; color: var(--text-dim); }
.menu-extra {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
}

/* ---------------- 在线对战 / 排行榜 --------------- */
.mode-card.online:hover { box-shadow: 0 0 30px rgba(0, 240, 255, 0.35); border-color: var(--cyan); }
.online-panel { width: min(680px, 94vw); }
.online-tip {
  font-size: 0.8rem; color: var(--text-dim); line-height: 1.7;
  margin-bottom: 16px; border-left: 2px solid var(--cyan); padding-left: 10px;
}
.online-actions { display: flex; gap: 14px; margin-bottom: 16px; flex-wrap: wrap; }
.online-actions .btn-neon { flex: 1; min-width: 150px; }
.join-row { display: flex; gap: 12px; align-items: flex-end; margin-bottom: 16px; flex-wrap: wrap; }
.online-lobby-title {
  font-family: var(--font-display); font-size: 0.8rem; letter-spacing: 2px;
  color: var(--cyan); margin: 4px 0 10px;
}
.create-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px 14px;
  margin-bottom: 14px;
  border-radius: 10px;
  border: 1px dashed rgba(0, 240, 255, 0.35);
  background: rgba(0, 240, 255, 0.03);
}
.create-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.cr-label {
  font-size: 0.78rem;
  color: var(--text-dim);
  width: 70px;
  flex-shrink: 0;
}
.board-size-cards {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.size-card {
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid rgba(143, 163, 192, 0.3);
  color: var(--text-dim);
  font-size: 0.8rem;
  transition: all 0.2s;
}
.size-card:hover { border-color: var(--cyan); color: var(--cyan); }
.size-card.selected {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 240, 255, 0.1);
  box-shadow: var(--glow-cyan);
}
.ol-rank { font-family: var(--font-display); }
.ol-count { color: var(--gold); }
.online-status {
  margin-top: 12px; padding: 10px 14px; border-radius: 10px;
  border: 1px dashed rgba(0, 240, 255, 0.35);
  color: var(--text-dim); font-size: 0.82rem; line-height: 1.8;
}
.online-status.ready { border-color: var(--gold); color: var(--gold); }
.online-status .room-id { font-family: var(--font-display); color: var(--cyan); }

/* 大厅房间卡片网格 */
.lobby-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}
.room-card {
  display: flex; flex-direction: column; gap: 8px;
  text-align: left;
  padding: 14px 15px;
  border-radius: 12px;
  border: 1px solid rgba(143, 163, 192, 0.25);
  background: rgba(10, 14, 32, 0.55);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.room-card:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}
.room-card.pub:hover { border-color: var(--green); box-shadow: 0 0 14px rgba(57, 255, 20, 0.3); }
.room-card.pwd:hover { border-color: var(--gold); box-shadow: 0 0 16px rgba(255, 215, 0, 0.3); }
.rc-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.rc-id {
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 1px;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}
.rc-type {
  font-size: 0.68rem;
  padding: 2px 9px;
  border-radius: 20px;
  white-space: nowrap;
}
.room-card.pub .rc-type { color: var(--green); border: 1px solid rgba(57, 255, 20, 0.4); background: rgba(57, 255, 20, 0.08); }
.room-card.pwd .rc-type { color: var(--gold); border: 1px solid rgba(255, 215, 0, 0.5); background: rgba(255, 215, 0, 0.08); }
.rc-host {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.rc-meta { display: flex; align-items: center; gap: 8px; font-size: 0.72rem; color: var(--text-dim); }
.rc-size {
  font-family: var(--font-display);
  color: var(--cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 1px 8px;
  border-radius: 6px;
}
.rc-time { margin-left: auto; white-space: nowrap; }
.rc-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 2px; }
.rc-wait { display: flex; align-items: center; gap: 6px; font-size: 0.72rem; color: var(--green); }
.rc-wait i {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: chipPulse 1s ease-in-out infinite;
}
.rc-btn {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 1px;
  padding: 5px 13px;
  border-radius: 8px;
  color: var(--cyan);
  border: 1px solid var(--cyan);
  background: rgba(0, 240, 255, 0.06);
  transition: all 0.2s;
}
.room-card.pwd .rc-btn { color: var(--gold); border-color: var(--gold); background: rgba(255, 215, 0, 0.06); }
.room-card:hover .rc-btn { background: var(--cyan); color: #04121a; }
.room-card.pwd:hover .rc-btn { background: var(--gold); color: #1a1003; }
.lobby-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 28px 12px;
  color: var(--text-dim);
  font-size: 0.85rem;
  border: 1px dashed rgba(0, 240, 255, 0.25);
  border-radius: 12px;
}

.rank-panel { width: min(860px, 94vw); }
.rank-tabs { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.rank-tab {
  padding: 8px 18px; border-radius: 8px; border: 1px solid rgba(143, 163, 192, 0.25);
  font-size: 0.85rem; color: var(--text-dim);
}
.rank-tab.active {
  color: var(--gold); border-color: var(--gold); box-shadow: 0 0 12px rgba(255, 215, 0, 0.35);
  background: rgba(255, 215, 0, 0.08);
}
.rank-my {
  margin-bottom: 12px; padding: 10px 14px; border-radius: 10px;
  border: 1px solid var(--cyan); background: rgba(0, 240, 255, 0.06);
  font-size: 0.85rem; color: var(--text);
}
.rank-my b { color: var(--gold); }
.data-table tbody tr.me { background: rgba(0, 240, 255, 0.12); }
.hud-opp {
  font-size: 0.72rem; color: var(--green);
  border: 1px solid rgba(57, 255, 20, 0.4); padding: 2px 10px; border-radius: 20px;
}

/* ---------------- 对局设置 --------------- */
.setup-panel { width: min(680px, 92vw); }
.setup-title {
  font-family: var(--font-display);
  letter-spacing: 4px;
  margin-bottom: 22px;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}
.setup-group { margin-bottom: 22px; }
.setup-label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.difficulty-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.dif-card {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 16px 8px;
  border: 1px solid rgba(143, 163, 192, 0.25);
  border-radius: 10px;
  background: rgba(10, 14, 32, 0.5);
  transition: all 0.2s;
}
.dif-card:hover { transform: translateY(-3px); border-color: var(--cyan); }
.dif-card.selected {
  border-color: var(--magenta);
  background: rgba(255, 46, 204, 0.12);
  box-shadow: 0 0 18px rgba(255, 46, 204, 0.4);
}
.d-name { font-family: var(--font-display); font-size: 0.95rem; letter-spacing: 1px; }
.d-desc { font-size: 0.7rem; color: var(--text-dim); }
.d-stars { color: var(--gold); font-size: 0.8rem; letter-spacing: 2px; }

.side-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.side-card {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  padding: 16px;
  border: 1px solid rgba(143, 163, 192, 0.25);
  border-radius: 10px;
  background: rgba(10, 14, 32, 0.5);
  font-size: 0.9rem;
  transition: all 0.2s;
}
.side-card:hover { border-color: var(--cyan); transform: translateY(-3px); }
.side-card.selected { border-color: var(--cyan); box-shadow: 0 0 18px rgba(0, 240, 255, 0.35); }
.side-stone {
  width: 22px; height: 22px; border-radius: 50%;
  display: inline-block;
}
.side-stone.b { background: radial-gradient(circle at 32% 30%, #556, #0a0a0f 60%); box-shadow: 0 0 8px rgba(0, 240, 255, 0.8); }
.side-stone.w { background: radial-gradient(circle at 32% 30%, #fff, #b9c7ff 70%); box-shadow: 0 0 8px rgba(255, 46, 204, 0.8); }
.setup-sub {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 20px;
  line-height: 1.7;
  border-left: 2px solid var(--magenta);
  padding-left: 10px;
}
.setup-actions { display: flex; gap: 14px; justify-content: flex-end; }

/* ---------------- 对局界面 --------------- */
.game-stage {
  width: 100%;
  height: 100%;
  display: flex;
  gap: 10px;
  padding: 12px 12px 10px;
}
.game-layout {
  flex: 1;
  min-width: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ---------------- 聊天组件（局内 + 公共频道共用） ---------------- */
.chat-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-radius: 12px;
  border: 1px solid rgba(0, 240, 255, 0.2);
  background: rgba(8, 10, 24, 0.65);
  backdrop-filter: blur(8px);
  overflow: hidden;
}
.chat-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.15);
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 2px;
  color: var(--cyan);
}
.chat-close {
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 1px solid rgba(255, 59, 92, 0.5);
  color: var(--red);
  font-size: 0.7rem;
  display: none;
  align-items: center; justify-content: center;
}
.chat-msgs {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.82rem;
}
.chat-msg {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-width: 92%;
  animation: msgIn 0.2s ease-out;
}
.chat-msg.mine { align-self: flex-end; align-items: flex-end; }
.chat-msg .cm-head {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.66rem;
  color: var(--text-dim);
}
.chat-msg.mine .cm-head { flex-direction: row-reverse; }
.chat-msg .cm-name { color: var(--cyan); font-weight: 600; }
.chat-msg .cm-time { opacity: 0.7; }
.chat-msg .cm-body {
  padding: 6px 10px;
  border-radius: 10px;
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid rgba(0, 240, 255, 0.15);
  color: var(--text);
  word-break: break-word;
  line-height: 1.5;
}
.chat-msg.mine .cm-body {
  background: rgba(255, 46, 204, 0.08);
  border-color: rgba(255, 46, 204, 0.3);
}
.chat-msg.sys .cm-body { background: transparent; border: none; color: var(--gold); font-size: 0.74rem; text-align: center; }
@keyframes msgIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.chat-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 10px;
  border-top: 1px solid rgba(0, 240, 255, 0.1);
}
.chat-quick button {
  font-size: 0.7rem;
  padding: 3px 9px;
  border-radius: 20px;
  border: 1px solid rgba(143, 163, 192, 0.3);
  color: var(--text-dim);
  transition: all 0.15s;
}
.chat-quick button:hover { color: var(--cyan); border-color: var(--cyan); }
.chat-input-row {
  display: flex;
  gap: 8px;
  padding: 8px 10px;
  border-top: 1px solid rgba(0, 240, 255, 0.15);
}
.chat-input-row input { flex: 1; padding: 8px 11px; }
.chat-send {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 1px;
  padding: 0 16px;
  border-radius: 8px;
  color: var(--cyan);
  border: 1px solid var(--cyan);
  background: rgba(0, 240, 255, 0.08);
  transition: all 0.2s;
}
.chat-send:hover { background: var(--cyan); color: #04121a; }

/* 局内聊天侧栏 */
.game-chat { width: 280px; flex-shrink: 0; }
.chat-toggle {
  display: none;
  position: fixed;
  right: 14px;
  bottom: 66px;
  z-index: 90;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 2px;
  padding: 10px 18px;
  border-radius: 30px;
  color: var(--cyan);
  border: 1px solid var(--cyan);
  background: rgba(8, 10, 24, 0.9);
  box-shadow: var(--glow-cyan);
}

/* 公共频道：右下角悬浮按钮 + 弹出面板 */
.lobby-chat-toggle {
  display: block;
  position: fixed;
  right: 14px;
  bottom: 20px;
  z-index: 90;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 2px;
  padding: 10px 18px;
  border-radius: 30px;
  color: var(--green);
  border: 1px solid var(--green);
  background: rgba(8, 10, 24, 0.9);
  box-shadow: 0 0 14px rgba(57, 255, 20, 0.3);
}
.lobby-chat-pop {
  position: fixed;
  right: 14px;
  bottom: 68px;
  z-index: 95;
  width: min(320px, calc(100vw - 28px));
  height: 380px;
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  border: 1px solid rgba(0, 240, 255, 0.25);
  background: rgba(8, 10, 24, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.25);
  overflow: hidden;
}
.lobby-chat-pop .chat-close { display: flex; }

.game-hud-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 14px;
  background: rgba(8, 10, 24, 0.55);
  border: 1px solid rgba(0, 240, 255, 0.18);
  border-radius: 12px;
  backdrop-filter: blur(8px);
  flex-wrap: wrap;
}
.hud-left { display: flex; gap: 8px; align-items: center; }
.hud-mode {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--cyan);
  letter-spacing: 2px;
}
.hud-diff {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 20px;
  background: rgba(255, 46, 204, 0.14);
  color: var(--magenta);
  border: 1px solid rgba(255, 46, 204, 0.4);
  animation: chipPulse 2s ease-in-out infinite;
}
.turn-box {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 16px;
  border: 1px solid rgba(255, 215, 0, 0.5);
  border-radius: 30px;
  background: rgba(255, 215, 0, 0.06);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: var(--gold);
  animation: chipPulse 2.4s ease-in-out infinite;
}
.turn-dot {
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 10px var(--gold);
}
.turn-dot.ai-turn { background: var(--magenta); box-shadow: 0 0 10px var(--magenta); animation: dotSpin 1.4s linear infinite; }
@keyframes dotSpin { 0% { transform: rotate(0); } 100% { transform: rotate(360deg); } }
.hud-right { display: flex; gap: 8px; flex-wrap: wrap; }
.hud-btn {
  font-size: 0.78rem;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid rgba(143, 163, 192, 0.3);
  color: var(--text-dim);
  transition: all 0.2s;
}
.hud-btn:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}

.board-wrap {
  position: relative;
  flex: 1;
  min-height: 260px;
  display: flex; align-items: center; justify-content: center;
}
#gameCanvas {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  border-radius: 16px;
  box-shadow: 0 0 60px rgba(0, 240, 255, 0.2), inset 0 0 40px rgba(0, 240, 255, 0.05);
}
/* CSS 棋盘线框兜底：canvas 异常时仍能看到 15×15 网格 */
.board-wrap::before {
  content: '';
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: min(92vmin, 720px);
  height: min(92vmin, 720px);
  background:
    repeating-linear-gradient(to right, rgba(0, 240, 255, 0.22) 0 1px, transparent 1px calc(100% / 15)),
    repeating-linear-gradient(to bottom, rgba(0, 240, 255, 0.22) 0 1px, transparent 1px calc(100% / 15));
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 10px;
  pointer-events: none;
  z-index: -1;
}
.hud-debug {
  max-width: 94vw;
  margin: 0 auto;
  padding: 6px 12px;
  font-size: 0.72rem;
  font-family: var(--font-display);
  color: #ff3b5c;
  border: 1px solid rgba(255, 59, 92, 0.5);
  border-radius: 8px;
  background: rgba(30, 4, 10, 0.8);
  text-align: center;
}
.scene-tag {
  position: absolute; bottom: 10px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  font-size: 0.76rem;
  color: var(--text-dim);
  background: rgba(8, 10, 24, 0.6);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 30px;
  backdrop-filter: blur(6px);
  white-space: nowrap;
  pointer-events: none;
}
/* 触摸设备（移动端）：隐藏键盘快捷键提示，仅保留场景名 */
@media (hover: none), (pointer: coarse) {
  .scene-tag kbd { display: none; }
  .scene-tag { border-color: transparent; background: transparent; }
}
.scene-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: chipPulse 1.5s ease-in-out infinite;
}
.game-hud-bottom {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px;
  padding: 6px 14px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.game-hud-bottom .hud-btn { flex-shrink: 0; }
.hud-timer { display: flex; align-items: center; gap: 8px; color: var(--cyan); }
.dot-live {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: chipPulse 1s ease-in-out infinite;
}

/* 胜利面板 */
.victory-panel {
  position: absolute; inset: 0; z-index: 80;
  display: flex; align-items: center; justify-content: center;
  background: rgba(3, 4, 12, 0.7);
  backdrop-filter: blur(6px);
  animation: panelFadeIn 0.3s ease;
}
@keyframes panelFadeIn { from { opacity: 0; } to { opacity: 1; } }
.victory-inner {
  text-align: center;
  padding: 34px 40px;
  border-radius: var(--radius);
  border: 1px solid var(--gold);
  background: rgba(10, 12, 30, 0.9);
  box-shadow: 0 0 60px rgba(255, 215, 0, 0.35), var(--glow-magenta);
  width: min(480px, 90vw);
  animation: victoryIn 0.5s cubic-bezier(0.2, 0.9, 0.3, 1.3);
}
@keyframes victoryIn {
  from { opacity: 0; transform: scale(0.6) translateY(30px); }
  to { opacity: 1; transform: none; }
}
.victory-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 6vw, 2.6rem);
  letter-spacing: 6px;
  color: var(--gold);
  text-shadow: 0 0 30px rgba(255, 215, 0, 0.8);
  margin-bottom: 10px;
}
.victory-result { font-size: 1rem; color: var(--text-dim); margin-bottom: 16px; }
.victory-stats {
  display: flex; justify-content: center; gap: 22px; flex-wrap: wrap;
  margin-bottom: 22px;
}
.victory-stats .vs-item { text-align: center; }
.victory-stats .vs-num {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--cyan);
}
.victory-stats .vs-label { font-size: 0.72rem; color: var(--text-dim); }
.victory-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* 组合特效弹字 */
.combo-toast {
  position: absolute;
  bottom: 26%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 70;
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 3.4vw, 1.5rem);
  letter-spacing: 5px;
  color: var(--cyan);
  text-shadow: 0 0 18px var(--cyan), 0 0 40px var(--cyan);
  padding: 8px 22px;
  border-radius: 30px;
  border: 1px solid rgba(0, 240, 255, 0.5);
  background: rgba(0, 240, 255, 0.08);
  backdrop-filter: blur(4px);
  pointer-events: none;
  white-space: nowrap;
  animation: comboPop 1.1s ease-out forwards;
}
.combo-toast.magenta {
  color: var(--magenta);
  border-color: var(--magenta);
  text-shadow: 0 0 18px var(--magenta), 0 0 40px var(--magenta);
  background: rgba(255, 46, 204, 0.08);
}
.combo-toast.gold {
  color: var(--gold);
  border-color: var(--gold);
  text-shadow: 0 0 18px var(--gold), 0 0 40px var(--gold);
  background: rgba(255, 215, 0, 0.08);
}
@keyframes comboPop {
  0% { opacity: 0; transform: translateX(-50%) translateY(20px) scale(0.4); }
  18% { opacity: 1; transform: translateX(-50%) translateY(0) scale(1.15); }
  32% { transform: translateX(-50%) scale(1); }
  75% { opacity: 1; }
  100% { opacity: 0; transform: translateX(-50%) translateY(-26px) scale(1.1); }
}

/* ---------------- 个人中心 ---------------- */
.personal-panel { width: min(880px, 94vw); }
.pc-header {
  display: flex; align-items: center; gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.15);
  flex-wrap: wrap;
}
.pc-avatar {
  width: 70px; height: 70px;
  display: grid; place-items: center;
  font-size: 2.4rem;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(255, 46, 204, 0.2));
  border: 2px solid var(--cyan);
  box-shadow: var(--glow-cyan);
}
.pc-id { flex: 1; min-width: 160px; }
.pc-nickline { display: flex; align-items: center; gap: 10px; }
.pc-nickline h2 { font-family: var(--font-display); font-size: 1.3rem; letter-spacing: 2px; }
.pc-badge {
  font-size: 0.68rem;
  padding: 2px 10px;
  border-radius: 20px;
  background: rgba(168, 85, 247, 0.15);
  border: 1px solid var(--purple);
  color: #c9a8ff;
  letter-spacing: 1px;
}
.pc-level-line {
  display: flex; align-items: center; gap: 10px;
  margin: 6px 0;
}
.pc-level {
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
  white-space: nowrap;
}
.exp-bar {
  flex: 1;
  max-width: 180px;
  height: 8px;
  border-radius: 10px;
  background: rgba(0, 240, 255, 0.12);
  border: 1px solid rgba(0, 240, 255, 0.25);
  overflow: hidden;
}
.exp-fill {
  height: 100%;
  width: 0%;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
  transition: width 0.5s ease;
}
.pc-rank-badge {
  font-size: 0.72rem;
  font-family: var(--font-display);
  padding: 2px 10px;
  border-radius: 20px;
  border: 1px solid currentColor;
  background: rgba(0, 0, 0, 0.3);
  letter-spacing: 1px;
  white-space: nowrap;
}
.pc-exp-tip {
  font-size: 0.7rem;
  color: var(--text-dim);
  white-space: nowrap;
}
.pc-rank-line {
  display: flex; align-items: center; gap: 10px;
  margin: 4px 0;
}
.pc-rank-wins {
  font-size: 0.72rem;
  color: var(--gold);
  white-space: nowrap;
}
.rank-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-family: var(--font-display);
  padding: 1px 8px;
  border-radius: 20px;
  border: 1px solid currentColor;
  background: rgba(0, 0, 0, 0.3);
  letter-spacing: 1px;
  white-space: nowrap;
}
.pc-user { color: var(--text-dim); font-size: 0.82rem; margin: 3px 0; }
.pc-since { color: var(--text-dim); font-size: 0.74rem; }
.pc-rank-box {
  display: flex; flex-direction: column; align-items: center;
  padding: 12px 18px;
  border: 1px solid var(--gold);
  border-radius: 12px;
  background: rgba(255, 215, 0, 0.06);
  box-shadow: 0 0 18px rgba(255, 215, 0, 0.2);
}
.pc-rank-num { font-family: var(--font-display); font-size: 1.8rem; color: var(--gold); text-shadow: 0 0 14px var(--gold); }
.pc-rank-label { font-size: 0.68rem; color: var(--text-dim); }

.pc-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 18px 0;
}
.stat-card {
  text-align: center;
  padding: 14px 8px;
  border-radius: 10px;
  background: rgba(10, 14, 32, 0.5);
  border: 1px solid rgba(143, 163, 192, 0.2);
  transition: all 0.2s;
}
.stat-card:hover { transform: translateY(-3px); border-color: var(--cyan); }
.sc-num { font-family: var(--font-display); font-size: 1.45rem; color: var(--cyan); text-shadow: var(--glow-cyan); }
.stat-card.win .sc-num { color: var(--green); }
.stat-card.loss .sc-num { color: var(--red); }
.stat-card.hot .sc-num { color: var(--gold); }
.sc-label { font-size: 0.72rem; color: var(--text-dim); margin-top: 4px; }

.pc-tabs { display: flex; gap: 10px; margin-bottom: 14px; }
.pc-tab {
  padding: 8px 18px;
  border-radius: 8px;
  border: 1px solid rgba(143, 163, 192, 0.25);
  font-size: 0.85rem;
  color: var(--text-dim);
}
.pc-tab.active { color: var(--cyan); border-color: var(--cyan); box-shadow: var(--glow-cyan); background: rgba(0, 240, 255, 0.08); }

.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.mini-form {
  padding: 18px;
  border-radius: 12px;
  border: 1px solid rgba(0, 240, 255, 0.15);
  background: rgba(10, 14, 32, 0.4);
}
.mini-form h3 { font-family: var(--font-display); font-size: 0.95rem; letter-spacing: 2px; margin-bottom: 14px; }
.avatar-row { display: flex; gap: 8px; align-items: center; }
.avatar-row input { flex: 1; }
.avatar-preset { display: flex; gap: 6px; flex-wrap: wrap; }
.avatar-preset-item {
  display: inline-flex;
  cursor: pointer;
  padding: 2px;
  border-radius: 50%;
  transition: transform 0.15s, box-shadow 0.15s;
}
.avatar-preset-item:hover { transform: scale(1.12); }
.avatar-preset-item.selected { box-shadow: 0 0 0 2px var(--cyan), 0 0 12px rgba(0, 240, 255, 0.55); }
.avatar-preset-item .avatar-img { width: 40px; height: 40px; }
.avatar-img {
  border-radius: 50%;
  object-fit: cover;
  display: inline-block;
  vertical-align: middle;
  background: #0a0c1c;
}
.pc-avatar .avatar-img { border-radius: 50%; border: 2px solid var(--cyan); box-shadow: var(--glow-cyan); }
.tu-avatar .avatar-img { width: 34px; height: 34px; }

/* ---------------- 表格 / 分页 ---------------- */
.table-scroll {
  overflow-x: auto;
  border-radius: 10px;
  border: 1px solid rgba(0, 240, 255, 0.12);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  min-width: 640px;
}
.data-table th {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 1px;
  color: var(--text-dim);
  text-align: left;
  padding: 9px 10px;
  background: rgba(0, 240, 255, 0.06);
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
  white-space: nowrap;
}
.data-table td {
  padding: 8px 10px;
  border-bottom: 1px solid rgba(143, 163, 192, 0.1);
  white-space: nowrap;
  color: var(--text);
}
.data-table tbody tr { transition: background 0.15s; }
.data-table tbody tr:hover { background: rgba(0, 240, 255, 0.05); }
.result-win { color: var(--green); font-weight: 600; }
.result-loss { color: var(--red); }
.result-draw { color: var(--gold); }
.pager {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-top: 12px;
  font-size: 0.8rem;
}
.pager button {
  padding: 5px 11px;
  border-radius: 6px;
  border: 1px solid rgba(143, 163, 192, 0.3);
  color: var(--text-dim);
}
.pager button:hover { border-color: var(--cyan); color: var(--cyan); }
.pager button:disabled { opacity: 0.35; cursor: default; }
.pager .pg-info { color: var(--text-dim); font-size: 0.78rem; }

/* ---------------- 管理员后台 ---------------- */
.admin-panel { width: min(1180px, 96vw); height: min(86vh, 720px); display: flex; flex-direction: column; }
.admin-topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; flex-wrap: wrap; gap: 10px; }
.admin-topbar h2 { font-family: var(--font-display); letter-spacing: 3px; color: var(--cyan); text-shadow: var(--glow-cyan); }
.admin-tabs { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.admin-tab {
  padding: 9px 20px;
  border-radius: 9px;
  border: 1px solid rgba(143, 163, 192, 0.25);
  color: var(--text-dim);
  font-size: 0.88rem;
}
.admin-tab.active { color: var(--magenta); border-color: var(--magenta); box-shadow: var(--glow-magenta); background: rgba(255, 46, 204, 0.08); }
.adm-content { flex: 1; min-height: 0; overflow-y: auto; }

.dash-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.dash-card {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(0, 240, 255, 0.2);
  background: rgba(10, 14, 32, 0.5);
  position: relative;
  overflow: hidden;
}
.dash-card::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  opacity: 0.6;
}
.dc-num { font-family: var(--font-display); font-size: 1.7rem; color: var(--cyan); text-shadow: var(--glow-cyan); }
.dash-card.hot .dc-num { color: var(--magenta); text-shadow: var(--glow-magenta); }
.dash-card.gold .dc-num { color: var(--gold); text-shadow: 0 0 12px var(--gold); }
.dc-label { font-size: 0.74rem; color: var(--text-dim); margin-top: 4px; }

.dash-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 14px;
}
.chart-box, .top-box {
  border-radius: 12px;
  border: 1px solid rgba(0, 240, 255, 0.15);
  background: rgba(10, 14, 32, 0.4);
  padding: 14px;
}
.chart-box h3, .top-box h3 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 2px;
  margin-bottom: 10px;
  color: var(--text);
}
#dashChart { width: 100%; height: 220px; display: block; }
.top-item {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 4px;
  border-bottom: 1px dashed rgba(143, 163, 192, 0.15);
  font-size: 0.85rem;
}
.top-item .ti-rank { font-family: var(--font-display); color: var(--gold); width: 22px; }
.top-item .ti-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.top-item .ti-score { font-family: var(--font-display); color: var(--cyan); }

.ad-toolbar {
  display: flex; gap: 10px; align-items: center;
  margin-bottom: 12px; flex-wrap: wrap;
}
.ad-toolbar input { width: min(280px, 100%); flex: 1; }
.ad-toolbar select { width: auto; }
.config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.config-tip {
  font-size: 0.75rem;
  color: var(--text-dim);
  line-height: 1.7;
  border-left: 2px solid var(--cyan);
  padding-left: 8px;
}
.config-rank-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.config-rank-row {
  display: grid;
  grid-template-columns: 1fr auto 90px;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid rgba(0, 240, 255, 0.15);
  background: rgba(10, 14, 32, 0.4);
}
.cr-name {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text);
}
.cr-min { font-size: 0.7rem; color: var(--text-dim); white-space: nowrap; }
.cr-input { width: 90px; }
.config-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 16px;
}
.tbl-btn {
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid rgba(143, 163, 192, 0.3);
  color: var(--text-dim);
  margin-right: 4px;
}
.tbl-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.tbl-btn.danger:hover { border-color: var(--red); color: var(--red); }
.tbl-btn.ok:hover { border-color: var(--green); color: var(--green); }
.badge-role {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 20px;
}
.badge-role.admin { background: rgba(255, 46, 204, 0.15); color: var(--magenta); border: 1px solid var(--magenta); }
.badge-role.user { background: rgba(0, 240, 255, 0.1); color: var(--cyan); border: 1px solid var(--cyan); }
.badge-state.ok { color: var(--green); }
.badge-state.ban { color: var(--red); }

/* 后台聊天管理 */
.chat-admin-title {
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 2px;
  color: var(--cyan);
  margin: 14px 0 8px;
}
.chat-admin-msgs {
  border: 1px solid rgba(0, 240, 255, 0.12);
  border-radius: 10px;
  overflow: hidden;
  max-height: 260px;
  overflow-y: auto;
}
.chat-admin-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid rgba(143, 163, 192, 0.1);
  font-size: 0.82rem;
}
.chat-admin-row:last-child { border-bottom: none; }
.chat-admin-row .cm-id { font-family: var(--font-display); color: var(--text-dim); font-size: 0.7rem; flex-shrink: 0; }
.chat-admin-row .cm-name { color: var(--cyan); font-weight: 600; flex-shrink: 0; max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-admin-row .cm-text { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }
.chat-admin-row .cm-time { color: var(--text-dim); font-size: 0.72rem; flex-shrink: 0; }
.chat-admin-row .cm-ops { flex-shrink: 0; }
.chat-admin-empty { text-align: center; color: var(--text-dim); padding: 16px; font-size: 0.8rem; }

/* ---------------- Toast / Loading ---------------- */
#toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  transform: translateX(-50%);
  z-index: 120;
  padding: 12px 24px;
  border-radius: 30px;
  background: rgba(8, 10, 24, 0.92);
  border: 1px solid var(--cyan);
  color: var(--text);
  font-size: 0.88rem;
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.4);
  animation: toastIn 0.3s ease;
  max-width: 86vw;
  text-align: center;
}
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(16px); } to { opacity: 1; transform: none; } }
#toast.err { border-color: var(--red); box-shadow: 0 0 24px rgba(255, 59, 92, 0.4); }

.loading {
  position: fixed; inset: 0; z-index: 200;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 20px;
  background: rgba(5, 6, 15, 0.96);
}
.loader-ring {
  width: 64px; height: 64px;
  border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: var(--cyan);
  border-right-color: var(--magenta);
  animation: spin 1s linear infinite;
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.4);
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader-text { font-family: var(--font-display); letter-spacing: 4px; color: var(--cyan); font-size: 0.85rem; }

/* ---------------- 响应式多屏幕 ---------------- */
@media (max-width: 900px) {
  .dash-cards { grid-template-columns: repeat(2, 1fr); }
  .dash-row { grid-template-columns: 1fr; }
  .settings-grid { grid-template-columns: 1fr; }
  .config-grid { grid-template-columns: 1fr; }
  .pc-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .difficulty-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  body { font-size: 14px; }
  .menu-modes { grid-template-columns: 1fr; }
  .side-cards { grid-template-columns: 1fr; }
  .panel { padding: 20px; }
  /* 短屏下带顶栏的屏幕：面板高度限制在顶栏以下，防止内容被裁切/遮挡 */
  #screen-menu .panel, #screen-pve .panel, #screen-online .panel,
  #screen-rank .panel, #screen-personal .panel, #screen-admin .panel {
    max-height: calc(100vh - 64px);
  }
  .game-stage { padding: 8px 6px 6px; }
  .game-layout { padding: 0; }
  /* 局内聊天：桌面侧栏在移动端收起为右下角悬浮按钮，点击滑出 */
  .game-chat {
    position: fixed;
    right: 8px;
    top: 60px;
    bottom: 8px;
    width: min(320px, calc(100vw - 16px));
    z-index: 95;
    transform: translateX(calc(100% + 16px));
    transition: transform 0.3s ease;
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
  }
  .game-chat.open { transform: none; }
  .chat-close { display: flex; }
  .chat-toggle { display: block; }
  .hud-right .hud-btn { font-size: 0.7rem; padding: 5px 9px; }
  .scene-tag { bottom: 6px; }
  .victory-inner { padding: 24px 20px; }
}
@media (max-height: 620px) and (min-width: 641px) {
  .game-stage { padding-top: 6px; }
  .hud-btn { padding: 4px 10px; font-size: 0.72rem; }
}

/* 大屏（桌面宽屏） */
@media (min-width: 1600px) {
  body { font-size: 18px; }
  .topbar { height: 58px; }
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: none; }
}