/* =========================================================
   霓虹炸弹人 · NEON BOMBER — UI 样式
   ========================================================= */

:root {
  --bg: #07070f;
  --bg-2: #0c0c1a;
  --cyan: #00f0ff;
  --magenta: #ff2fd0;
  --violet: #7b5cff;
  --amber: #ffb020;
  --lime: #9cff2e;
  --text: #dfefff;
  --dim: #8195b3;
  --panel: rgba(14, 16, 30, 0.82);
  --border: rgba(0, 240, 255, 0.22);
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  user-select: none;
  -webkit-user-select: none;
  overscroll-behavior: none;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1200px 700px at 50% -10%, rgba(0, 240, 255, 0.09), transparent 60%),
    radial-gradient(900px 600px at 100% 110%, rgba(255, 47, 208, 0.08), transparent 60%),
    radial-gradient(700px 500px at 0% 100%, rgba(123, 92, 255, 0.09), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hidden {
  display: none !important;
}

/* ---------------- Canvas ---------------- */

#game-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0;
  transition: opacity 0.45s ease;
}
#game-canvas.on {
  opacity: 1;
}

/* ---------------- 通用按钮 ---------------- */

.btn {
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 13px 26px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease,
    border-color 0.2s ease, opacity 0.2s ease;
  outline: none;
  position: relative;
}
.btn:active {
  transform: scale(0.97);
}
.btn:disabled {
  /* 禁用态要一眼看出点不动：抽掉渐变和光晕，压成灰块 */
  opacity: 0.55;
  cursor: not-allowed;
  transform: none !important;
  background: rgba(120, 145, 180, 0.1) !important;
  color: rgba(190, 215, 245, 0.4) !important;
  border-color: rgba(120, 145, 180, 0.14) !important;
  box-shadow: none !important;
}

.btn-primary {
  background: linear-gradient(135deg, #00d4e0, #0a7bff 55%, #7b5cff);
  color: #02121a;
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.5), 0 8px 28px rgba(0, 190, 255, 0.32);
}
.btn-primary:hover:not(:disabled) {
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.85), 0 10px 36px rgba(0, 200, 255, 0.5);
}

.btn-ghost {
  background: rgba(0, 240, 255, 0.06);
  border-color: rgba(0, 240, 255, 0.35);
  color: var(--cyan);
  box-shadow: inset 0 0 18px rgba(0, 240, 255, 0.07);
}
.btn-ghost:hover:not(:disabled) {
  background: rgba(0, 240, 255, 0.14);
  border-color: rgba(0, 240, 255, 0.7);
}

.btn-ready-on {
  background: linear-gradient(135deg, #9cff2e, #46d16a);
  color: #08130a;
  border-color: rgba(156, 255, 46, 0.6);
  box-shadow: 0 0 26px rgba(156, 255, 46, 0.45);
}

.mini-btn {
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 9px;
  cursor: pointer;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.35);
  color: var(--cyan);
  transition: all 0.16s ease;
  letter-spacing: 0.03em;
}
.mini-btn:hover {
  background: rgba(0, 240, 255, 0.2);
}
.mini-btn.ghost {
  background: rgba(255, 90, 120, 0.08);
  border-color: rgba(255, 90, 120, 0.3);
  color: #ff8ba0;
}
.mini-btn.ghost:hover {
  background: rgba(255, 90, 120, 0.18);
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  background: rgba(10, 14, 26, 0.72);
  border: 1px solid rgba(0, 240, 255, 0.24);
  color: var(--cyan);
  backdrop-filter: blur(6px);
  transition: all 0.16s ease;
  font-family: inherit;
}
.icon-btn:hover {
  border-color: rgba(0, 240, 255, 0.75);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.35);
}
.icon-btn.muted {
  color: var(--dim);
  border-color: rgba(120, 140, 170, 0.28);
}

/* ---------------- 屏幕容器 ---------------- */

.screen {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 10;
  overflow-y: auto;
  animation: screenIn 0.32s cubic-bezier(0.2, 0.8, 0.3, 1);
}

@keyframes screenIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------------- 首页 ---------------- */

.home-wrap {
  width: min(460px, 100%);
  text-align: center;
  padding: 8px 0 24px;
}

.logo {
  margin: 0 0 6px;
  line-height: 1.05;
  position: relative;
}

.logo-neon {
  display: block;
  font-size: clamp(34px, 9vw, 54px);
  font-weight: 900;
  letter-spacing: 0.04em;
  background: linear-gradient(180deg, #fff 8%, #7df9ff 42%, #ff2fd0 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 18px rgba(0, 240, 255, 0.55))
    drop-shadow(0 0 42px rgba(255, 47, 208, 0.35));
  position: relative;
}

.logo-sub {
  display: block;
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.55em;
  color: rgba(125, 249, 255, 0.62);
  font-weight: 600;
  text-indent: 0.55em;
}

.tagline {
  margin: 14px 0 26px;
  color: var(--dim);
  font-size: 13.5px;
  letter-spacing: 0.08em;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  backdrop-filter: blur(14px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  text-align: left;
}
.field > span {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--dim);
  text-transform: uppercase;
  font-weight: 600;
}

input[type="text"] {
  font-family: inherit;
  font-size: 16px;
  padding: 13px 15px;
  border-radius: 11px;
  border: 1px solid rgba(0, 240, 255, 0.22);
  background: rgba(4, 6, 14, 0.75);
  color: var(--text);
  outline: none;
  transition: all 0.18s ease;
  width: 100%;
  letter-spacing: 0.04em;
}
input[type="text"]::placeholder {
  color: rgba(129, 149, 179, 0.55);
}
input[type="text"]:focus {
  border-color: rgba(0, 240, 255, 0.8);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.12), 0 0 24px rgba(0, 240, 255, 0.18);
  background: rgba(6, 10, 20, 0.92);
}

#input-code {
  text-transform: uppercase;
  letter-spacing: 0.32em;
  text-align: center;
  font-weight: 700;
  font-size: 18px;
}

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(129, 149, 179, 0.6);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  margin: 2px 0;
}
.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.28), transparent);
}

.join-row {
  display: flex;
  gap: 10px;
}
.join-row input {
  flex: 1;
}
.join-row .btn {
  padding: 13px 22px;
  white-space: nowrap;
}

.hints {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
  color: rgba(129, 149, 179, 0.85);
  letter-spacing: 0.04em;
}

/* 首页底部的公网地址条：隧道重连后地址会变，所以做成一眼能查、一键能复制 */
.public-box {
  margin-top: 22px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(0, 240, 255, 0.05);
  border: 1px solid rgba(0, 240, 255, 0.16);
}

.public-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}

.public-label {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(129, 149, 179, 0.95);
}

.public-url {
  display: block;
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 12px;
  color: #00f0ff;
  word-break: break-all;
  line-height: 1.45;
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.35);
}

kbd {
  display: inline-block;
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  margin: 0 1px;
  border-radius: 5px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  color: var(--cyan);
  line-height: 1.5;
}

/* ---------------- 大厅 ---------------- */

.lobby-wrap {
  width: min(620px, 100%);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.lobby-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
  backdrop-filter: blur(12px);
}

.room-code-box {
  display: flex;
  align-items: center;
  gap: 14px;
}
.room-code-box .label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--dim);
  text-transform: uppercase;
}
.room-code-box strong {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-shadow: 0 0 18px rgba(0, 240, 255, 0.7);
  font-variant-numeric: tabular-nums;
}

.player-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.player-card {
  background: rgba(12, 15, 28, 0.8);
  border: 1px solid rgba(120, 145, 180, 0.18);
  border-radius: 14px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  position: relative;
  overflow: hidden;
  transition: all 0.24s ease;
  min-height: 96px;
}
.player-card.ready {
  border-color: rgba(156, 255, 46, 0.55);
  box-shadow: inset 0 0 26px rgba(156, 255, 46, 0.1), 0 0 20px rgba(156, 255, 46, 0.14);
}
.player-card.offline {
  opacity: 0.45;
}
.player-card.empty {
  border-style: dashed;
  border-color: rgba(120, 145, 180, 0.16);
  background: rgba(8, 10, 18, 0.4);
  align-items: center;
  justify-content: center;
  color: rgba(129, 149, 179, 0.4);
  font-size: 12.5px;
  letter-spacing: 0.1em;
}
.player-card .pcard-top {
  display: flex;
  align-items: center;
  gap: 9px;
}
.pcard-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex: 0 0 auto;
  box-shadow: 0 0 12px currentColor;
  background: currentColor;
}
.pcard-name {
  font-weight: 700;
  font-size: 14.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}
.pcard-badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.badge {
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 20px;
  letter-spacing: 0.1em;
  font-weight: 700;
  border: 1px solid transparent;
}
.badge.host {
  background: rgba(255, 176, 32, 0.16);
  color: var(--amber);
  border-color: rgba(255, 176, 32, 0.45);
}
.badge.ready {
  background: rgba(156, 255, 46, 0.15);
  color: var(--lime);
  border-color: rgba(156, 255, 46, 0.45);
}
.badge.wait {
  background: rgba(129, 149, 179, 0.12);
  color: var(--dim);
  border-color: rgba(129, 149, 179, 0.25);
}
.badge.off {
  background: rgba(255, 80, 110, 0.14);
  color: #ff7d94;
  border-color: rgba(255, 80, 110, 0.4);
}
.badge.you {
  background: rgba(0, 240, 255, 0.13);
  color: var(--cyan);
  border-color: rgba(0, 240, 255, 0.4);
}

.lobby-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 18px;
  backdrop-filter: blur(12px);
}

.lobby-status {
  font-size: 12.5px;
  color: var(--dim);
  letter-spacing: 0.06em;
  flex: 1;
  min-width: 140px;
}

.lobby-actions {
  display: flex;
  gap: 10px;
}

/* ---------------- HUD ---------------- */

#hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 12px 16px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  z-index: 8;
  pointer-events: none;
}
#hud > * {
  pointer-events: auto;
}

.hud-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: rgba(8, 10, 20, 0.7);
  border: 1px solid rgba(0, 240, 255, 0.22);
  border-radius: 12px;
  padding: 8px 14px;
  backdrop-filter: blur(8px);
  min-width: 96px;
}
.hud-timer {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-shadow: 0 0 14px rgba(0, 240, 255, 0.6);
  font-variant-numeric: tabular-nums;
  line-height: 1.05;
}
.hud-timer.danger {
  color: #ff5566;
  text-shadow: 0 0 16px rgba(255, 60, 90, 0.8);
  animation: pulseDanger 0.9s infinite;
}
@keyframes pulseDanger {
  50% {
    opacity: 0.55;
  }
}
.hud-phase {
  font-size: 9.5px;
  letter-spacing: 0.24em;
  color: var(--dim);
  font-weight: 700;
}

.hud-players {
  display: flex;
  gap: 8px;
  flex: 1;
  flex-wrap: wrap;
  justify-content: center;
}

.hud-pill {
  display: flex;
  align-items: center;
  gap: 7px;
  background: rgba(8, 10, 20, 0.72);
  border: 1px solid rgba(120, 145, 180, 0.2);
  border-radius: 11px;
  padding: 7px 12px;
  backdrop-filter: blur(8px);
  font-size: 12.5px;
  font-weight: 600;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.hud-pill .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 10px currentColor;
  flex: 0 0 auto;
}
.hud-pill .pname {
  color: var(--text);
  max-width: 84px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hud-pill .pstats {
  display: flex;
  gap: 6px;
  font-size: 10.5px;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
}
.hud-pill .pstats b {
  color: var(--cyan);
  font-weight: 700;
}
.hud-pill.dead {
  opacity: 0.36;
  filter: grayscale(1);
}
.hud-pill.you {
  border-color: rgba(0, 240, 255, 0.55);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.22);
}
.hud-pill.offline {
  border-color: rgba(255, 80, 110, 0.5);
  opacity: 0.6;
}

.hud-right {
  display: flex;
  gap: 7px;
}

/* ---------------- 结算 ---------------- */

#screen-result {
  z-index: 20;
  background: radial-gradient(circle at 50% 42%, rgba(6, 8, 18, 0.55), rgba(3, 4, 10, 0.82));
  backdrop-filter: blur(2px);
}

.result-wrap {
  width: min(560px, 100%);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.result-banner {
  font-size: clamp(34px, 10vw, 62px);
  font-weight: 900;
  letter-spacing: 0.1em;
  line-height: 1.1;
  background: linear-gradient(180deg, #fff, #7df9ff 55%, #0af);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 24px rgba(0, 240, 255, 0.6));
  animation: bannerPop 0.55s cubic-bezier(0.18, 1.4, 0.4, 1);
}
.result-banner.lose {
  background: linear-gradient(180deg, #fff, #ff7d94 55%, #c01040);
  -webkit-background-clip: text;
  background-clip: text;
  filter: drop-shadow(0 0 24px rgba(255, 60, 100, 0.55));
}
.result-banner.draw {
  background: linear-gradient(180deg, #fff, #ffd98a 55%, #b07000);
  -webkit-background-clip: text;
  background-clip: text;
  filter: drop-shadow(0 0 24px rgba(255, 190, 60, 0.55));
}

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

.result-sub {
  font-size: 13px;
  color: var(--dim);
  letter-spacing: 0.12em;
}

.result-table {
  background: rgba(12, 15, 28, 0.75);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.result-row {
  display: grid;
  grid-template-columns: 34px 1fr auto auto;
  gap: 12px;
  align-items: center;
  padding: 12px 16px;
  font-size: 13.5px;
  border-bottom: 1px solid rgba(120, 145, 180, 0.1);
  text-align: left;
}
.result-row:last-child {
  border-bottom: none;
}
.result-row .rank {
  font-weight: 900;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
}
.result-row.win .rank {
  color: var(--amber);
}
.result-row .rname {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}
.result-row .rstat {
  font-size: 11.5px;
  color: var(--dim);
  letter-spacing: 0.06em;
}

.result-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------------- 观战条 ---------------- */

.spectate-bar {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 47, 208, 0.14);
  border: 1px solid rgba(255, 47, 208, 0.45);
  color: #ffb3ef;
  padding: 9px 20px;
  border-radius: 30px;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  font-weight: 700;
  backdrop-filter: blur(8px);
  z-index: 9;
  display: flex;
  gap: 12px;
  animation: specPulse 2.4s ease-in-out infinite;
}
@keyframes specPulse {
  50% {
    box-shadow: 0 0 22px rgba(255, 47, 208, 0.35);
  }
}

/* ---------------- 弹窗 ---------------- */

.modal {
  position: fixed;
  inset: 0;
  background: rgba(3, 4, 10, 0.82);
  backdrop-filter: blur(8px);
  display: grid;
  place-items: center;
  z-index: 40;
  padding: 20px;
  animation: screenIn 0.22s ease;
}

.modal-card {
  width: min(480px, 100%);
  background: rgba(12, 15, 28, 0.96);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7);
}
.modal-card h2 {
  margin: 0 0 18px;
  font-size: 20px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  font-weight: 800;
}
.modal-card ul {
  margin: 0 0 22px;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 11px;
  font-size: 13.5px;
  line-height: 1.6;
  color: #b9cbe4;
}
.modal-card ul b {
  color: var(--text);
}

.tag {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  margin: 0 2px;
}
.t-bomb {
  background: rgba(255, 122, 24, 0.18);
  color: #ffb347;
  border: 1px solid rgba(255, 122, 24, 0.45);
}
.t-range {
  background: rgba(255, 47, 208, 0.16);
  color: #ff8ad8;
  border: 1px solid rgba(255, 47, 208, 0.45);
}
.t-speed {
  background: rgba(156, 255, 46, 0.15);
  color: #b6ff6a;
  border: 1px solid rgba(156, 255, 46, 0.4);
}

/* ---------------- 网络提示 ---------------- */

.net-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(90deg, rgba(200, 20, 60, 0.92), rgba(255, 60, 100, 0.92));
  color: #fff;
  text-align: center;
  padding: 8px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  z-index: 60;
  animation: netPulse 1.6s infinite;
}
@keyframes netPulse {
  50% {
    opacity: 0.72;
  }
}

/* ---------------- Toast ---------------- */

.toast {
  position: fixed;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(10, 14, 26, 0.94);
  border: 1px solid rgba(0, 240, 255, 0.45);
  color: var(--text);
  padding: 11px 22px;
  border-radius: 30px;
  font-size: 13px;
  letter-spacing: 0.04em;
  z-index: 70;
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.22);
  animation: toastIn 0.24s ease;
  max-width: 88vw;
  text-align: center;
}
.toast.err {
  border-color: rgba(255, 80, 110, 0.6);
  box-shadow: 0 0 30px rgba(255, 60, 100, 0.28);
}
@keyframes toastIn {
  from {
    opacity: 0;
    transform: translate(-50%, 10px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

/* ---------------- 触摸控制 ---------------- */

.touch-ui {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 12;
}

.dpad {
  position: absolute;
  left: max(16px, env(safe-area-inset-left));
  bottom: max(18px, env(safe-area-inset-bottom));
  width: 168px;
  height: 168px;
  pointer-events: auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 3px;
  opacity: 0.9;
}
.dpad-btn {
  border: 1px solid rgba(0, 240, 255, 0.3);
  background: rgba(10, 16, 30, 0.62);
  color: var(--cyan);
  font-size: 19px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  backdrop-filter: blur(4px);
  transition: background 0.08s ease, box-shadow 0.08s ease;
  padding: 0;
  touch-action: none;
}
.dpad-btn.active {
  background: rgba(0, 240, 255, 0.3);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
}
.dpad-btn.up {
  grid-area: 1 / 2;
}
.dpad-btn.left {
  grid-area: 2 / 1;
}
.dpad-btn.right {
  grid-area: 2 / 3;
}
.dpad-btn.down {
  grid-area: 3 / 2;
}
.dpad-center {
  grid-area: 2 / 2;
  border-radius: 50%;
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid rgba(0, 240, 255, 0.14);
}

.bomb-btn {
  position: absolute;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(30px, calc(env(safe-area-inset-bottom) + 12px));
  width: 104px;
  height: 104px;
  border-radius: 50%;
  border: 2px solid rgba(255, 122, 24, 0.7);
  background: radial-gradient(circle at 35% 30%, rgba(255, 160, 60, 0.9), rgba(190, 60, 10, 0.85));
  color: #1a0a00;
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 0.1em;
  pointer-events: auto;
  box-shadow: 0 0 30px rgba(255, 110, 20, 0.5), inset 0 0 20px rgba(255, 220, 150, 0.4);
  touch-action: none;
  font-family: inherit;
}
.bomb-btn:active {
  transform: scale(0.93);
  box-shadow: 0 0 46px rgba(255, 140, 40, 0.8);
}

/* ---------------- 响应式 ---------------- */

@media (max-width: 680px) {
  .hud-players .pstats {
    display: none;
  }
  .hud-pill {
    padding: 6px 9px;
    font-size: 11.5px;
  }
  .hud-pill .pname {
    max-width: 58px;
  }
  .panel {
    padding: 18px;
  }
  #hud {
    padding: 8px 10px;
    gap: 8px;
  }
  .hud-left {
    padding: 6px 10px;
    min-width: 78px;
  }
  .hud-timer {
    font-size: 19px;
  }
  .player-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .lobby-foot {
    flex-direction: column;
    align-items: stretch;
  }
  .lobby-actions .btn {
    flex: 1;
  }
}

@media (max-height: 520px) {
  .logo-neon {
    font-size: 30px;
  }
  .tagline {
    margin: 8px 0 14px;
  }
  .hints {
    display: none;
  }
}

/* 隐藏滚动条但保留滚动 */
.screen::-webkit-scrollbar {
  width: 0;
}