*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
:root{
  --wood:#e9c893; --wood-d:#d8ad6e; --line:#7a4a1e; --frame:#8a5a2b;
  --red:#c0392b; --black:#2b2b2b; --bg:#20232a; --card:#2b2f38;
  --txt:#eceff4; --muted:#9aa2b1; --gold:#e0b04a; --green:#3fb56b;
}
html,body{height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:radial-gradient(circle at 50% 0%,#2c313c,#181a1f);
  color:var(--txt);overflow-x:hidden;
}
.screen{display:none;min-height:100dvh;flex-direction:column;max-width:520px;margin:0 auto}
.screen.active{display:flex}
.hidden{display:none !important}

button{font:inherit;cursor:pointer;border:none;border-radius:12px;color:#fff;transition:transform .06s,filter .15s}
button:active{transform:scale(.96)}
.primary{background:linear-gradient(135deg,#c0392b,#e05a3d);box-shadow:0 6px 16px rgba(192,57,43,.35)}
.secondary{background:#3a4150;color:var(--txt)}
.ghost{background:transparent;color:var(--muted)}
.danger{background:#7a2a24}
.big{padding:15px;font-size:18px;font-weight:700;width:100%}
.sm{padding:6px 10px;font-size:13px}
input{font:inherit;background:#1c1f26;border:1.5px solid #3a4150;color:var(--txt);
  border-radius:12px;padding:13px 14px;width:100%;outline:none}
input:focus{border-color:var(--red)}

/* 登录 */
#scr-login{justify-content:center;align-items:center;padding:24px}
.login-card{text-align:center;width:100%;max-width:340px;display:flex;flex-direction:column;gap:16px}
.logo{display:flex;justify-content:center;gap:10px;margin-bottom:4px}
.chip{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;
  font-size:38px;font-family:serif;font-weight:700;border:3px solid #b98a4e;background:#f3d9a4;
  box-shadow:0 6px 16px rgba(0,0,0,.4)}
.chip.red{color:var(--red)} .chip.black{color:#222}
h1{font-size:26px;letter-spacing:2px}
.sub{color:var(--muted);font-size:14px;line-height:1.6}
.tip{color:#6b7280;font-size:12px;margin-top:8px}
.auth-tabs{display:flex;gap:6px;background:#1c1f26;padding:4px;border-radius:12px}
.auth-tab{flex:1;background:transparent;color:var(--muted);padding:10px;font-weight:600}
.auth-tab.active{background:#3a4150;color:var(--txt)}
.ghost.big{background:transparent;border:1.5px solid #3a4150;color:var(--muted)}

/* 顶栏 */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;gap:10px}
.me{display:flex;align-items:center;gap:10px}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#e0b04a,#c98a2e);
  display:grid;place-items:center;font-weight:700;color:#2b2416;font-size:18px}
.me-name{font-weight:700;font-size:16px}
.me-stat{color:var(--muted);font-size:12px;margin-top:2px}
.room-code{font-size:14px;color:var(--muted)} .room-code b{color:var(--gold);letter-spacing:2px;font-size:16px}
.spec-chip{margin-left:6px;font-size:12px;color:#8ec7ff;background:rgba(46,123,214,.18);padding:2px 8px;border-radius:8px}
.spectate-note{margin:0 14px 12px;text-align:center;color:#8ec7ff;background:rgba(46,123,214,.12);
  padding:9px;border-radius:10px;font-size:13px}
.room-list li .specs{margin-left:auto;color:#8ec7ff;font-size:12px;margin-right:8px}
.room-list button.watch{background:#2f7bd6}

/* 大厅 */
.lobby-body{padding:0 14px 24px;display:flex;flex-direction:column;gap:16px}
.kind-tabs{display:flex;gap:8px;overflow-x:auto;padding:4px 0;-webkit-overflow-scrolling:touch}
.kind-tab{flex:0 0 auto;background:var(--card);color:var(--muted);padding:10px 16px;font-weight:600;border-radius:12px;white-space:nowrap}
.kind-tab.active{background:linear-gradient(135deg,#c0392b,#e05a3d);color:#fff}
.seat-pick{display:flex;align-items:center;gap:8px;background:var(--card);padding:8px 12px;border-radius:12px}
.seat-lbl{color:var(--muted);font-size:14px}
#seat-opts{display:flex;gap:6px}
.seat-opt{background:#3a4150;color:var(--txt);padding:7px 14px;border-radius:10px;font-weight:600}
.seat-opt.active{background:var(--gold);color:#2b2416}
/* 多人玩家条 + 飞行棋控制 */
.multi-bar{display:flex;gap:6px;flex-wrap:wrap;padding:8px 4px}
.mp{display:flex;align-items:center;gap:6px;background:var(--card);padding:6px 10px;border-radius:10px;font-size:13px;border:2px solid transparent}
.mp.turn{border-color:var(--gold)}
.mp .swatch{width:12px;height:12px;border-radius:50%}
.mp .mp-elo{color:var(--muted);font-size:11px}
.mp.empty{opacity:.5}
.mp.inactive{opacity:.55;filter:grayscale(.75)}
.mp .mp-dot{width:7px;height:7px;border-radius:50%;background:#555}
.mp .mp-dot.on{background:var(--green)}
.ludo-controls{display:flex;align-items:center;gap:12px;padding:10px 14px;justify-content:center}
.ludo-controls .primary{padding:12px 28px;font-size:16px;font-weight:700;border-radius:12px}
.ludo-hint{color:var(--gold);font-size:14px;font-weight:600}
.special-controls{display:flex;gap:10px;padding:0 14px 10px;justify-content:center}
.special-controls button{padding:11px 18px;font-weight:700;min-width:116px}
.special-controls button:disabled{opacity:.55;cursor:default}
.actions{display:flex;flex-direction:column;gap:10px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.row2 button{padding:13px;font-weight:600}
.join-row{display:flex;gap:10px}
.join-row input{flex:1}
.join-row button{padding:0 20px;font-weight:600}
.panel{background:var(--card);border-radius:16px;padding:14px;box-shadow:0 4px 14px rgba(0,0,0,.2)}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.panel-head h3{font-size:15px}
.room-list,.rank-list{list-style:none}
.room-list li,.rank-list li{display:flex;align-items:center;gap:10px;padding:11px 8px;
  border-bottom:1px solid #363c48;font-size:14px}
.room-list li:last-child,.rank-list li:last-child{border-bottom:none}
.room-list .code{font-weight:700;letter-spacing:2px;color:var(--gold);font-family:monospace}
.room-list .host{color:var(--muted);flex:1}
.room-list button{margin-left:auto;background:#3fb56b;padding:6px 14px;font-size:13px;font-weight:600}
.rank-list li .rk{width:24px;color:var(--gold);font-weight:700;text-align:center}
.rank-list li .nm{flex:1}
.rank-list li .wl{color:var(--muted);font-size:13px}
.rank-list li .wl b{color:var(--gold)}
.guest-tag{margin-left:6px;font-size:11px;color:#9aa2b1;background:#3a4150;padding:1px 6px;border-radius:6px;font-weight:600}
.elo-line{margin-top:12px;font-size:16px;color:var(--txt)}
.elo-line b.up{color:var(--green)} .elo-line b.down{color:#ff7a6b}
.empty{color:#6b7280;justify-content:center}

/* 玩家条 */
.player-bar{display:flex;align-items:center;gap:8px;padding:10px 16px;font-size:14px;background:var(--card);margin:0 14px;border-radius:12px}
.player-bar.me-bar{margin-top:0}
.dot{width:9px;height:9px;border-radius:50%;background:#555;flex:none}
.dot.online{background:var(--green);box-shadow:0 0 6px var(--green)}
.p-name{font-weight:700}
.p-side{font-size:12px;padding:2px 8px;border-radius:8px;font-weight:700}
.p-side.red{background:rgba(192,57,43,.2);color:#ff8f7d}
.p-side.black{background:rgba(255,255,255,.12);color:#cfd6e2}
.p-turn{margin-left:auto;color:var(--gold);font-size:12px;font-weight:700}

/* 棋盘 */
.board-wrap{position:relative;padding:8px 14px}
#board{width:100%;height:auto;display:block;margin:0 auto;border-radius:8px;
  box-shadow:0 8px 24px rgba(0,0,0,.4);touch-action:manipulation}
.banner{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  background:rgba(0,0,0,.78);color:#fff;padding:14px 26px;border-radius:14px;font-size:22px;
  font-weight:700;pointer-events:none;animation:pop .3s}
@keyframes pop{from{transform:translate(-50%,-50%) scale(.6);opacity:0}to{transform:translate(-50%,-50%) scale(1);opacity:1}}

/* 工具 */
.game-tools{display:flex;gap:8px;padding:12px 14px;flex-wrap:wrap}
.tool{flex:1;min-width:60px;background:#3a4150;padding:11px 4px;font-size:14px;font-weight:600}
.tool.danger{background:#7a2a24}

/* 聊天 · 弹幕 */
.chat-box{margin:0 14px 14px;background:var(--card);border-radius:14px;overflow:hidden;display:flex;flex-direction:column}
.chat-title{display:none;padding:12px 14px 4px;font-size:14px;font-weight:700;color:var(--gold)}
.chat-log{max-height:150px;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:7px;font-size:14px}
.chat-log .msg{opacity:0;animation:danmakuIn .35s forwards}
.chat-log .msg b{color:var(--gold);margin-right:6px}
.chat-log .sys{color:var(--muted);text-align:center;font-size:12px}
@keyframes danmakuIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:none}}
.chat-input{display:flex;gap:8px;padding:10px;border-top:1px solid #363c48}
.chat-input input{flex:1}
.chat-input button{padding:0 16px}

/* 棋盘上飞过的弹幕层 */
.danmaku-layer{position:absolute;inset:8px 14px;overflow:hidden;pointer-events:none;border-radius:8px}
.danmaku-layer .bullet{position:absolute;left:100%;white-space:nowrap;font-size:15px;font-weight:700;
  --dist:600px;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.9);will-change:transform;animation:danmakuFly linear forwards}
@keyframes danmakuFly{from{transform:translateX(0)}to{transform:translateX(calc(-1 * var(--dist)))}}

/* 宽屏：棋盘在左，弹幕聊天在右 */
#game-main{display:flex;flex-direction:column}
@media(min-width:880px){
  #scr-game{max-width:940px}
  #game-main{flex-direction:row;align-items:flex-start;gap:8px;padding-right:14px}
  #game-left{flex:1;min-width:0}
  #game-right{width:300px;flex:none;position:sticky;top:8px}
  #chat-box{display:flex !important;margin:8px 0;height:calc(100dvh - 90px)}
  .chat-title{display:block}
  .chat-log{max-height:none;flex:1}
  #btn-chat-toggle{display:none}
}

/* 棋谱 */
.history-box{margin:0 14px 14px;background:var(--card);border-radius:14px;max-height:220px;overflow-y:auto;padding:8px}
#history-table{width:100%;border-collapse:collapse;font-size:14px}
#history-table td{padding:6px 8px;border-bottom:1px solid #363c48}
#history-table td.no{color:var(--muted);width:34px}
#history-table td.red{color:#ff8f7d} #history-table td.black{color:#cfd6e2}

/* toast + modal */
.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%) translateY(-80px);
  background:#000c;color:#fff;padding:11px 20px;border-radius:12px;font-size:14px;z-index:100;
  transition:transform .3s;pointer-events:none;max-width:90%}
.toast.show{transform:translateX(-50%) translateY(0)}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:90;padding:24px;backdrop-filter:blur(3px)}
.modal-card{background:var(--card);border-radius:20px;padding:24px;width:100%;max-width:340px;text-align:center;animation:pop .25s}
.modal-title{font-size:22px;font-weight:700;margin-bottom:10px}
.modal-body{color:var(--muted);font-size:15px;line-height:1.6;margin-bottom:20px}
.modal-actions{display:flex;gap:10px}
.modal-actions button{flex:1;padding:13px;font-weight:700}