:root{
  --bg:#0A1020;
  --card:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.12);
  --cyan:#38F9D7;
  --green:#43E97B;
  --violet:#7F7FD5;
  --red:#FF6B6B;
  --text:#EAF6FF;
  --muted:rgba(234,246,255,.62);
  /* 手牌优先铺满一行：14张 */
  --tile-w: min(42px, calc((100vw - 36px) / 14));
  --tile-h: calc(var(--tile-w) * 1.38);
  --tile-sm-w: min(30px, calc((100vw - 36px) / 14 * 0.72));
  --tile-sm-h: calc(var(--tile-sm-w) * 1.38);
  --gap-tile: 2px;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(56,249,215,.18), transparent 42%),
    radial-gradient(ellipse at 80% 18%, rgba(127,127,213,.26), transparent 42%),
    radial-gradient(ellipse at 50% 100%, rgba(67,233,123,.12), transparent 40%),
    var(--bg);
  min-height:100%;
  overflow-x:hidden;
  -webkit-text-size-adjust:100%;
}
#app{
  max-width:980px;margin:0 auto;
  padding:10px 8px calc(20px + env(safe-area-inset-bottom));
}
.screen{display:none}
.screen.active{display:block}

.brand{text-align:center;margin:8px 0 18px}
.brand h1{
  font-size:28px;font-weight:800;letter-spacing:.12em;color:#fff;
}
.apk-bar{margin-top:24px;text-align:center}
.apk-link{
  display:inline-block;padding:12px 28px;border-radius:999px;
  background:linear-gradient(90deg,var(--cyan),var(--green));
  color:#061018;font-weight:800;text-decoration:none;font-size:14px;
}
.apk-link:active{transform:scale(.98)}
.roomno{margin:8px 0 12px}

.lobby-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:820px){.lobby-grid{grid-template-columns:1fr}}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  padding:16px;
  backdrop-filter:blur(16px);
  box-shadow:0 16px 48px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.06);
}
.card.slim{display:flex;align-items:center;gap:12px;margin-top:14px;padding:12px 14px}
.card h2{font-size:14px;letter-spacing:.14em;color:var(--cyan);margin-bottom:10px}
.hint{font-size:12px;color:var(--muted);line-height:1.6;margin-bottom:10px}

.roomno{
  text-align:center;font-family:Consolas,"Courier New",monospace;
  font-size:40px;font-weight:700;letter-spacing:.28em;
  color:#fff;padding:14px 8px;border-radius:16px;
  background:linear-gradient(135deg, rgba(56,249,215,.14), rgba(127,127,213,.2));
  border:1px solid rgba(56,249,215,.35);
  text-shadow:0 0 20px rgba(56,249,215,.45);
  margin:8px 0 12px;
}
.roomno.big{font-size:48px;letter-spacing:.32em}
.tags{text-align:center;margin-bottom:12px}
.tag{
  display:inline-flex;padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);font-size:11px;color:var(--muted);margin:0 3px 6px;
}
.tag b{color:var(--green)}

.btn{
  width:100%;border:0;cursor:pointer;padding:13px 14px;border-radius:14px;
  font-size:15px;font-weight:800;color:#061018;
  background:linear-gradient(90deg,var(--cyan),var(--green));
  box-shadow:0 8px 24px rgba(56,249,215,.25);
  margin-top:8px;
  transition:transform .12s ease, opacity .12s;
}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}
.btn.ghost{
  background:transparent;border:1px solid rgba(56,249,215,.45);
  color:var(--cyan);box-shadow:none;
}
.btn.tiny{width:auto;padding:8px 12px;font-size:12px;margin:0}

.digits{display:flex;gap:8px;justify-content:center;margin:12px 0}
.digits input{
  width:42px;height:54px;text-align:center;font-size:22px;
  font-family:Consolas,monospace;color:#fff;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(56,249,215,.3);
  border-radius:14px;outline:none;
}
.digits input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(67,233,123,.18)}

.meta{
  display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;
  font-size:12px;color:var(--muted);margin-top:10px;
}
.badge{font-family:Consolas,monospace;color:var(--cyan);letter-spacing:.12em;font-size:11px}

.avatar{
  width:42px;height:42px;border-radius:16px;display:grid;place-items:center;
  font-weight:800;background:linear-gradient(135deg,var(--violet),#2A2A55);
  border:1px solid rgba(255,255,255,.15);flex:0 0 auto;
}
.avatar.sm{width:28px;height:28px;border-radius:10px;font-size:11px}
.player-bar .info{flex:1;min-width:0}
.player-bar .info b{display:block;font-size:14px}
.player-bar .info span{font-size:11px;color:var(--muted)}

.wait-card{text-align:center;padding:36px 20px;max-width:520px;margin:40px auto}
.pulse{
  width:64px;height:64px;margin:22px auto;
  border-radius:50%;
  border:2px solid var(--cyan);
  box-shadow:0 0 0 0 rgba(56,249,215,.5);
  animation:pulse 1.6s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(56,249,215,.45)}
  70%{box-shadow:0 0 0 18px rgba(56,249,215,0)}
  100%{box-shadow:0 0 0 0 rgba(56,249,215,0)}
}

.game-top{
  display:flex;justify-content:space-between;align-items:center;gap:6px;
  margin-bottom:6px;flex-wrap:wrap;
}
.player.chip{
  display:flex;align-items:center;gap:6px;min-width:0;flex:1 1 42%;padding:6px 8px;
  border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.player.chip.me{border-color:rgba(56,249,215,.35)}
.player.chip .info{font-size:11px;line-height:1.25;min-width:0}
.player.chip .info b{display:block;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.player.chip .info span{color:var(--muted)}
.player.chip .pts{
  display:inline-block;font-family:Consolas,monospace;
  font-size:13px;font-weight:800;color:var(--green);
}
.player.chip .stick{
  display:inline-block;margin-left:4px;padding:0 4px;border-radius:999px;
  font-size:9px;background:rgba(255,107,107,.2);color:#FFA36B;border:1px solid rgba(255,107,107,.4);
}
.kyotaku{font-size:10px;color:var(--muted);margin-top:1px}
.act.riichi{
  border-color:rgba(255,107,107,.55);color:#FFD0C8;
  background:rgba(90,30,24,.45);
}
.act.declare{
  border-color:rgba(56,249,215,.5);color:var(--cyan);
  background:rgba(20,60,70,.35);
}
.phase{font-size:11px;font-weight:800;margin-top:1px}
.b-panel{
  margin-top:8px;padding:10px;
  background:rgba(30,20,10,.45);
  border:1px solid rgba(255,163,107,.35);
}
.b-panel h2{color:#FFA36B;margin-bottom:6px;font-size:12px}
.b-panel .tiles.row{max-height:140px;flex-wrap:wrap;justify-content:flex-start;overflow:auto}
.tile.guessed{
  outline:2px solid #FF6B6B;
  box-shadow:0 0 0 2px rgba(255,107,107,.55);
  opacity:.55;
  cursor:not-allowed;
  filter:grayscale(.35);
}
.meld-tag{
  font-size:9px;color:var(--muted);margin-right:2px;align-self:center;
}
.meld.ankan{border-color:rgba(127,127,213,.5)}
.tile.miss-face{
  outline:2px solid #FFA36B;
  box-shadow:0 0 8px rgba(255,163,107,.4);
}
.opp-melds{order:-1}
.my-melds{order:1}
.chi-panel{margin-top:8px;padding:10px}
.chi-panel h2{color:var(--cyan);margin-bottom:8px;font-size:12px}
.chi-options{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.chi-opt{
  padding:12px 16px;border-radius:12px;border:1px solid rgba(56,249,215,.4);
  background:rgba(20,60,70,.4);color:#fff;cursor:pointer;
}
.chi-opt b{display:block;font-size:16px;color:var(--cyan)}
.chi-opt span{font-size:11px;color:var(--muted)}
.ura-box{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--muted)}
.b-status{margin-top:8px;font-size:12px;color:var(--muted)}
.guess-slots{display:flex;align-items:center;gap:8px;margin:10px 0;font-size:12px;color:var(--muted)}
.reveal{margin-top:14px;padding:10px;border-radius:12px;background:rgba(0,0,0,.25)}
.final-pts{margin-top:14px;font-size:14px;color:var(--text)}
.center-info{text-align:center;min-width:0;flex:0 1 auto}
.center-info .round{font-size:15px;font-weight:800;color:var(--green);letter-spacing:.08em}
.center-info #wallLabel{font-size:11px;color:var(--muted)}
.turn{margin-top:2px;font-size:11px;font-weight:700;color:var(--cyan)}

.table{
  border-radius:16px;padding:8px 6px 6px;
  background:
    radial-gradient(ellipse at 50% 35%, rgba(56,249,215,.1), transparent 50%),
    linear-gradient(180deg,#132038,#0B1424);
  border:1px solid rgba(127,127,213,.35);
  box-shadow:0 0 36px rgba(127,127,213,.12), inset 0 0 40px rgba(0,0,0,.35);
}
.river{
  display:flex;flex-wrap:wrap;gap:2px;justify-content:center;
  min-height:28px;margin:2px 0;padding:2px;
  max-height:calc(var(--tile-sm-h) * 3 + 8px);
  overflow:hidden;
}
.river.me{margin-bottom:4px}
.table-mid{
  display:flex;justify-content:space-between;align-items:center;gap:6px;
  padding:2px 4px;margin:2px 0;
}
.dora-box{display:flex;align-items:center;gap:4px;font-size:10px;color:var(--muted)}

.tiles.row{
  display:flex;flex-wrap:nowrap;gap:var(--gap-tile);justify-content:center;align-items:flex-end;
  overflow-x:auto;overflow-y:hidden;padding:2px 0;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.tiles.row::-webkit-scrollbar{display:none}
.opp-hand{margin:2px 0 4px;opacity:.9}
.my-hand{margin-top:4px;padding-bottom:2px}

.tile{
  width:var(--tile-w);height:var(--tile-h);
  flex:0 0 auto;border-radius:5px;background:#F5F0EB;overflow:hidden;
  box-shadow:0 2px 6px rgba(56,249,215,.12), 0 1px 0 #c9b8a0;
  cursor:pointer;transition:transform .1s ease, box-shadow .1s;
  position:relative;border:1px solid rgba(0,0,0,.06);
}
.tile img{width:100%;height:100%;display:block;pointer-events:none;object-fit:fill}
.tile.small{width:var(--tile-sm-w);height:var(--tile-sm-h);border-radius:4px;box-shadow:0 1px 0 #c9b8a0}
.tile.back{
  background:
    linear-gradient(145deg, rgba(255,255,255,.1), transparent 42%),
    linear-gradient(160deg,#1A2740,#0E1628);
  border:1px solid rgba(56,249,215,.4);
  box-shadow:0 0 8px rgba(56,249,215,.12);
  cursor:default;
}
.tile.selected{
  transform:translateY(-6px);
  box-shadow:0 6px 14px rgba(56,249,215,.45), 0 0 0 2px var(--cyan);
}
.tile.drawn{
  margin-left:4px;
  outline:2px solid rgba(67,233,123,.55);
}
.tile.disabled{opacity:.55;pointer-events:none}

.melds-row{
  display:flex;flex-wrap:wrap;gap:4px;justify-content:center;margin:2px 0;min-height:0;
}
.meld{
  display:flex;align-items:flex-end;gap:1px;padding:1px 3px;border-radius:6px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
}
.tile.rotated{transform:rotate(-90deg);margin:0 6px 0 1px;align-self:center}
.tile.riichi-side{transform:rotate(-90deg);margin:0 4px}

.actions{
  display:flex;gap:6px;justify-content:center;margin-top:8px;flex-wrap:wrap;
  padding-bottom:env(safe-area-inset-bottom);
}
.act{
  min-width:0;flex:1 1 0;max-width:88px;padding:10px 4px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  color:#fff;font-weight:800;font-size:12px;cursor:pointer;
  white-space:nowrap;
}
.act:disabled{opacity:.35;cursor:not-allowed}
.act.primary{border:0;color:#061018;background:linear-gradient(90deg,var(--cyan),var(--green))}
.act.danger{
  border:0;color:#fff;background:linear-gradient(90deg,#FF6B6B,#FFA36B);
  box-shadow:0 0 18px rgba(255,107,107,.3);
}
.yaku-tip{text-align:center;margin-top:10px;font-size:12px;color:var(--muted)}
.yaku-tip b{color:var(--cyan)}

.log{
  margin-top:8px;max-height:56px;overflow:auto;
  font-size:11px;color:var(--muted);line-height:1.4;
  padding:8px 10px;border-radius:10px;
  background:rgba(0,0,0,.25);border:1px solid var(--line);
}
.log .ok{color:var(--green)}
.log .warn{color:#FFA36B}
.log .err{color:var(--red)}

.result-card{text-align:center;max-width:480px;margin:48px auto;padding:28px 20px}
.result-card h2{margin-bottom:12px;font-size:28px}
#resultBody{margin:14px 0 20px;color:var(--muted);line-height:1.7;font-size:14px}
.score-box{
  margin-top:14px;padding:14px;border-radius:16px;
  background:rgba(0,0,0,.3);border:1px solid var(--line);
}
.score-box .points{
  font-size:28px;font-weight:800;color:var(--green);margin:8px 0;
}
.yaku-list{list-style:none;margin-top:10px;text-align:left}
.yaku-list li{
  display:flex;justify-content:space-between;padding:6px 0;
  border-bottom:1px solid rgba(255,255,255,.06);font-size:13px;color:var(--text);
}
.yaku-list li b{color:var(--cyan)}

#toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(20px);
  background:rgba(20,30,50,.95);border:1px solid rgba(56,249,215,.4);
  color:#fff;padding:10px 16px;border-radius:12px;font-size:13px;
  opacity:0;pointer-events:none;transition:.2s;z-index:99;
  max-width:90vw;text-align:center;
}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media(max-width:480px){
  :root{
    --gap-tile:1px;
  }
  #app{padding:8px 4px calc(12px + env(safe-area-inset-bottom))}
  .brand h1{font-size:22px;margin-bottom:10px}
  .card{padding:12px;border-radius:14px}
  .roomno{font-size:28px;letter-spacing:.16em;padding:10px 6px}
  .roomno.big{font-size:34px;letter-spacing:.2em}
  .act{padding:9px 2px;font-size:11px;border-radius:9px}
  .yaku-tip{font-size:10px;margin-top:6px}
  .b-panel{padding:10px;max-height:42vh;overflow:auto}
  .b-panel .tiles.row{max-height:140px}
  .tile.selected{transform:translateY(-4px)}
  .tile.drawn{margin-left:2px}
  .result-card{margin:24px auto;padding:18px 12px}
  .result-card h2{font-size:22px}
}
@media(max-width:380px){
  :root{
    --tile-w: calc((100vw - 24px) / 14);
  }
}