:root{
    --cyan:#37e6ff; --pink:#ff5aa0; --green:#37ff8a; --yellow:#ffd166; --gold:#ffc44d;
    --hud-bg:rgba(8,14,26,.52); --hud-border:rgba(120,200,255,.4);
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html,body{width:100%;height:100%;overflow:hidden;background:#0a1220;
    font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#e6f3ff;
    -webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;}
  #game-canvas{position:fixed;inset:0;display:block;}
  button{font-family:inherit;cursor:pointer;}

  /* ---------- HUD ---------- */
  #hud{position:fixed;inset:0;pointer-events:none;z-index:20;}
  .panel{position:absolute;background:var(--hud-bg);border:1px solid var(--hud-border);
    border-radius:10px;padding:9px 12px;backdrop-filter:blur(5px);
    box-shadow:0 2px 16px rgba(0,0,0,.35);}
  #hud-tl{top:14px;left:14px;width:246px;display:flex;flex-direction:column;gap:7px;}
  .bar-row{display:flex;align-items:center;gap:8px;font-size:11px;letter-spacing:.5px;}
  .bar-label{width:34px;color:#a9d6f5;font-weight:700;}
  .bar-track{position:relative;flex:1;height:12px;background:rgba(255,255,255,.12);
    border-radius:6px;overflow:hidden;}
  .bar-fill{position:absolute;left:0;top:0;bottom:0;width:100%;border-radius:6px;
    transition:width .1s linear;}
  #health-fill{background:linear-gradient(90deg,#ff3b6b,#ff8a5b);box-shadow:0 0 10px rgba(255,59,107,.7);}
  #armor-fill{background:linear-gradient(90deg,#37e6ff,#5b8dff);box-shadow:0 0 10px rgba(55,230,255,.7);}
  .bar-value{width:32px;text-align:right;font-weight:800;font-variant-numeric:tabular-nums;}
  .stat-row{display:flex;justify-content:space-between;font-size:12.5px;}
  .stat-row .k{color:#93bcd9;}
  .stat-row .v{color:#fff;font-weight:800;font-variant-numeric:tabular-nums;}

  #hud-tr{top:14px;right:14px;min-width:152px;text-align:right;}
  #hud-tr .big{font-size:20px;font-weight:900;color:#fff;text-shadow:0 0 12px var(--cyan);}
  #hud-tr .sub{font-size:11.5px;color:#a9d6f5;margin-top:2px;}
  #coin-line{margin-top:6px;font-size:14px;font-weight:900;color:var(--gold);
    text-shadow:0 0 10px rgba(255,196,77,.6);font-variant-numeric:tabular-nums;}

  #minimap{position:absolute;top:126px;right:14px;width:148px;height:148px;
    border-radius:50%;background:rgba(6,14,26,.55);border:1px solid var(--hud-border);
    backdrop-filter:blur(4px);}

  #killfeed{position:absolute;top:288px;right:14px;width:210px;display:flex;
    flex-direction:column;gap:3px;align-items:flex-end;}
  .kf{font-size:11.5px;font-weight:700;color:#dff3ff;background:rgba(8,16,30,.6);
    border-left:3px solid var(--pink);padding:3px 8px;border-radius:4px;white-space:nowrap;
    animation:kfIn .18s ease;}
  @keyframes kfIn{from{opacity:0;transform:translateX(14px);}to{opacity:1;transform:none;}}

  #boss-bar{position:absolute;top:74px;left:50%;transform:translateX(-50%);
    width:min(560px,70vw);display:none;}
  #boss-bar .label{font-size:12px;letter-spacing:3px;color:#ffb0c8;text-align:center;
    margin-bottom:4px;font-weight:800;text-shadow:0 0 10px #ff2a5a;}
  #boss-bar .track{height:14px;background:rgba(255,255,255,.12);border-radius:7px;
    overflow:hidden;border:1px solid rgba(255,90,160,.5);}
  #boss-fill{height:100%;width:100%;background:linear-gradient(90deg,#ff2a5a,#ffaa00);
    transition:width .1s linear;}

  #crosshair{position:absolute;left:50%;top:50%;width:24px;height:24px;transform:translate(-50%,-50%);}
  #crosshair::before,#crosshair::after{content:"";position:absolute;background:#fff;
    box-shadow:0 0 5px rgba(0,0,0,.8);opacity:.92;}
  #crosshair::before{left:50%;top:0;width:2px;height:100%;transform:translateX(-50%);}
  #crosshair::after{top:50%;left:0;height:2px;width:100%;transform:translateY(-50%);}
  #crosshair .dot{position:absolute;left:50%;top:50%;width:3px;height:3px;border-radius:50%;
    background:#fff;transform:translate(-50%,-50%);}
  #hitmarker{position:absolute;left:50%;top:50%;width:32px;height:32px;
    transform:translate(-50%,-50%) rotate(45deg);opacity:0;}
  #hitmarker::before,#hitmarker::after{content:"";position:absolute;background:#fff;}
  #hitmarker::before{left:50%;top:0;width:2px;height:100%;transform:translateX(-50%);}
  #hitmarker::after{top:50%;left:0;height:2px;width:100%;transform:translateY(-50%);}
  #hitmarker.show{animation:hitpop .2s ease-out;}
  #hitmarker.head::before,#hitmarker.head::after{background:#ff4d6d;box-shadow:0 0 8px #ff4d6d;}
  @keyframes hitpop{0%{opacity:1;transform:translate(-50%,-50%) rotate(45deg) scale(.6);}
    100%{opacity:0;transform:translate(-50%,-50%) rotate(45deg) scale(1.35);}}

  #dmg-layer{position:absolute;inset:0;overflow:hidden;}
  .dmgnum{position:absolute;font-weight:900;font-size:17px;color:#fff;
    text-shadow:0 1px 4px #000,0 0 8px rgba(0,0,0,.7);transform:translate(-50%,-50%);
    pointer-events:none;transition:opacity .1s linear;}
  .dmgnum.head{color:#ff5c7a;font-size:22px;}

  #vignette{position:absolute;inset:0;opacity:0;
    background:radial-gradient(ellipse at center,rgba(200,0,30,0) 42%,rgba(200,0,30,.5) 100%);
    transition:opacity .18s ease;}
  #vignette.show{opacity:1;}
  #lowhp{position:absolute;inset:0;opacity:0;pointer-events:none;
    background:radial-gradient(ellipse at center,rgba(255,0,0,0) 45%,rgba(255,0,0,.42) 100%);
    transition:opacity .4s ease;}

  #reload-ind{position:absolute;left:50%;top:57%;transform:translateX(-50%);
    font-size:13px;letter-spacing:3px;color:var(--yellow);font-weight:800;display:none;
    text-shadow:0 0 10px var(--yellow);animation:blink .6s infinite alternate;}
  @keyframes blink{from{opacity:.35;}to{opacity:1;}}

  #hud-bc{bottom:24px;left:50%;transform:translateX(-50%);text-align:center;padding:7px 20px;}
  #weapon-name{font-size:16px;font-weight:800;letter-spacing:2px;text-shadow:0 0 10px var(--cyan);}
  #grenade-count{font-size:11.5px;color:#a9d6f5;margin-top:2px;}

  #hud-br{bottom:24px;right:20px;text-align:right;padding:7px 15px;}
  #ammo-mag{font-size:29px;font-weight:900;line-height:1;text-shadow:0 0 12px var(--cyan);
    font-variant-numeric:tabular-nums;}
  #ammo-reserve{font-size:13px;color:#a9d6f5;font-weight:700;}

  #banner{position:absolute;top:20%;left:50%;transform:translateX(-50%);white-space:nowrap;
    font-size:clamp(24px,5.5vw,42px);font-weight:900;letter-spacing:6px;opacity:0;
    text-shadow:0 0 20px var(--cyan),0 0 46px rgba(0,0,0,.6);}
  #banner.show{animation:bannerPop 2.1s ease forwards;}
  @keyframes bannerPop{0%{opacity:0;transform:translateX(-50%) scale(.75);}
    15%{opacity:1;transform:translateX(-50%) scale(1);}
    75%{opacity:1;}100%{opacity:0;transform:translateX(-50%) scale(1.05);}}

  #toast{position:absolute;left:50%;top:63%;transform:translateX(-50%);font-size:13.5px;z-index:90;
    font-weight:800;letter-spacing:2px;opacity:0;white-space:nowrap;color:var(--green);pointer-events:none;}
  #toast.show{animation:toastUp 1.1s ease forwards;}
  @keyframes toastUp{0%{opacity:0;transform:translate(-50%,10px);}
    20%{opacity:1;transform:translate(-50%,0);}80%{opacity:1;}
    100%{opacity:0;transform:translate(-50%,-14px);}}

  /* ---------- 游戏内聊天 ---------- */
  #chat-btn{position:absolute;left:14px;bottom:14px;z-index:40;padding:9px 16px;font-size:13px;
    font-weight:800;letter-spacing:1px;color:#dff3ff;background:rgba(10,22,40,.72);border:1px solid rgba(120,200,255,.32);
    border-radius:10px;cursor:pointer;backdrop-filter:blur(6px);transition:.15s;pointer-events:auto;}
  #chat-btn:hover{border-color:var(--cyan);box-shadow:0 0 12px rgba(55,230,255,.3);}
  #chat-panel{position:absolute;left:14px;bottom:58px;z-index:40;width:min(320px,72vw);
    background:rgba(10,18,32,.82);border:1px solid rgba(120,200,255,.3);border-radius:14px;
    overflow:hidden;backdrop-filter:blur(10px);box-shadow:0 8px 30px rgba(0,0,0,.5);
    display:none;flex-direction:column;pointer-events:auto;}
  #chat-panel.open{display:flex;animation:chatIn .18s ease;}
  @keyframes chatIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
  #chat-msgs{height:220px;overflow-y:auto;padding:10px 12px;display:flex;flex-direction:column;gap:6px;}
  #chat-msgs::-webkit-scrollbar{width:5px;}
  #chat-msgs::-webkit-scrollbar-thumb{background:rgba(120,200,255,.35);border-radius:3px;}
  .cmsg{font-size:12.5px;line-height:1.5;word-break:break-word;}
  .cmsg .cn{font-weight:800;color:#8ef0ff;}
  .cmsg .ct{color:#dff3ff;}
  .cmsg.me .cn{color:#37ff8a;}
  .cmsg.sys .cn{color:#ffd66b;}
  #chat-input-wrap{padding:8px 10px;border-top:1px solid rgba(120,200,255,.2);}
  #chat-input{width:100%;box-sizing:border-box;background:rgba(8,16,30,.9);color:#dff3ff;
    border:1px solid rgba(120,200,255,.3);border-radius:8px;padding:8px 12px;font-size:13px;
    font-family:inherit;outline:none;pointer-events:auto;}
  #chat-input:focus{border-color:var(--cyan);}

  /* ---------- overlays ---------- */
  .overlay{position:fixed;inset:0;z-index:60;display:flex;align-items:center;
    justify-content:center;flex-direction:column;text-align:center;gap:14px;
    background:radial-gradient(ellipse at center,rgba(10,20,40,.9),rgba(3,7,16,.97));}
  .overlay.hidden{display:none;}
  .overlay h1{font-size:clamp(30px,7vw,62px);font-weight:900;letter-spacing:7px;
    text-shadow:0 0 22px var(--cyan);}
  .overlay h2{font-size:clamp(22px,5vw,38px);font-weight:900;letter-spacing:5px;
    color:#fff;text-shadow:0 0 20px var(--pink);}
  .overlay p{color:#a9d6f5;font-size:13.5px;line-height:1.85;max-width:520px;padding:0 16px;}
  .btn{pointer-events:auto;border:1px solid var(--cyan);color:#fff;font-size:16px;
    font-weight:800;letter-spacing:3px;padding:13px 42px;border-radius:11px;
    background:linear-gradient(180deg,rgba(55,230,255,.24),rgba(55,230,255,.07));
    text-shadow:0 0 8px var(--cyan);transition:.16s;}
  .btn:hover{background:linear-gradient(180deg,rgba(55,230,255,.4),rgba(55,230,255,.14));}
  .btn:active{transform:scale(.97);}
  .btn.small{font-size:13px;padding:8px 18px;letter-spacing:1.5px;border-radius:8px;}
  .btn.buy{border-color:var(--gold);color:#ffe6b0;text-shadow:none;
    background:linear-gradient(180deg,rgba(255,196,77,.22),rgba(255,196,77,.05));}
  .btn.buy:hover{background:linear-gradient(180deg,rgba(255,196,77,.4),rgba(255,196,77,.12));}
  .btn[disabled]{opacity:.42;cursor:not-allowed;filter:grayscale(.6);}
  .stats-final{display:flex;gap:26px;flex-wrap:wrap;justify-content:center;font-size:13px;color:#cfe6ff;}
  .stats-final b{color:#fff;font-size:20px;display:block;margin-top:3px;}

  /* ---------- main menu ---------- */
  #menu-overlay{padding:0;align-items:stretch;}
  .menu-wrap{display:flex;width:100%;height:100%;}
  .menu-left{width:36%;min-width:300px;display:flex;flex-direction:column;
    align-items:center;justify-content:center;gap:12px;padding:20px;
    border-right:1px solid rgba(120,200,255,.18);
    background:linear-gradient(160deg,rgba(16,30,54,.55),rgba(6,12,24,.2));}
  #preview-canvas{width:100%;max-width:400px;flex:1;min-height:0;border-radius:16px;
    background:radial-gradient(ellipse at 50% 30%,rgba(70,120,200,.35),rgba(8,14,26,.9));
    border:1px solid rgba(120,200,255,.25);}
  .pl-title{font-size:22px;font-weight:900;letter-spacing:5px;text-shadow:0 0 16px var(--cyan);}
  .pl-sub{font-size:12px;color:#9dc4e0;}
  .pl-coins{font-size:16px;font-weight:900;color:var(--gold);
    text-shadow:0 0 12px rgba(255,196,77,.55);}
  .menu-right{flex:1;display:flex;flex-direction:column;padding:20px 24px;min-width:0;min-height:0;overflow:hidden;}
  .tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;}
  .tab{padding:8px 20px;border-radius:10px;font-size:14px;font-weight:800;letter-spacing:2px;
    color:#a9d6f5;background:rgba(255,255,255,.05);border:1px solid rgba(120,200,255,.18);
    transition:.15s;}
  .tab:hover{background:rgba(120,200,255,.14);color:#fff;}
  .tab.active{background:linear-gradient(180deg,rgba(55,230,255,.3),rgba(55,230,255,.1));
    color:#fff;border-color:var(--cyan);text-shadow:0 0 8px var(--cyan);}
  .tab-panel{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;display:none;padding-right:6px;}
  .tab-panel.active{display:block;}
  .tab-panel::-webkit-scrollbar{width:8px;}
  .tab-panel::-webkit-scrollbar-thumb{background:rgba(120,200,255,.3);border-radius:4px;}
  .sec-title{font-size:13px;font-weight:800;letter-spacing:3px;color:#8fc6ea;
    margin:16px 0 10px;text-transform:uppercase;}
  .sec-title:first-child{margin-top:0;}
  .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:11px;}
  .card{background:rgba(255,255,255,.045);border:1px solid rgba(120,200,255,.18);
    border-radius:12px;padding:12px 13px;text-align:left;transition:.15s;}
  .card:hover{border-color:rgba(120,200,255,.45);background:rgba(120,200,255,.08);}
  .card.equipped{border-color:var(--green);box-shadow:0 0 14px rgba(55,255,138,.25);}
  .card.locked{opacity:.75;}
  .card-name{font-size:15px;font-weight:900;letter-spacing:1px;margin-bottom:5px;}
  .card-desc{font-size:11.5px;color:#9dc4e0;line-height:1.55;margin-bottom:8px;}
  .card-stats{font-size:11px;color:#c6e2f7;line-height:1.6;margin-bottom:9px;
    font-variant-numeric:tabular-nums;}
  .card-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;}
  .price{font-size:13px;font-weight:900;color:var(--gold);}
  .price.no{color:#ff6b8a;}
  .row{display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:10px 13px;background:rgba(255,255,255,.04);border-radius:10px;
    border:1px solid rgba(120,200,255,.14);margin-bottom:8px;}
  .row-info{text-align:left;min-width:0;flex:1;}
  .row-name{font-size:13.5px;font-weight:800;}
  .row-desc{font-size:11px;color:#9dc4e0;margin-top:2px;}
  .pips{display:flex;gap:4px;margin-top:5px;}
  .pip{width:22px;height:6px;border-radius:3px;background:rgba(255,255,255,.16);}
  .pip.on{background:linear-gradient(90deg,var(--cyan),var(--green));
    box-shadow:0 0 6px rgba(55,230,255,.6);}
  .face-row{display:flex;align-items:center;gap:10px;margin-bottom:11px;flex-wrap:wrap;}
  .face-label{width:76px;font-size:12.5px;font-weight:700;color:#9dc4e0;flex-shrink:0;}
  .swatches{display:flex;gap:6px;flex-wrap:wrap;}
  .sw{width:26px;height:26px;border-radius:50%;border:2px solid rgba(255,255,255,.25);
    cursor:pointer;transition:.12s;}
  .sw:hover{transform:scale(1.12);}
  .sw.sel{border-color:#fff;box-shadow:0 0 10px rgba(255,255,255,.75);transform:scale(1.12);}
  .opt{padding:6px 14px;border-radius:8px;font-size:12px;font-weight:700;
    background:rgba(255,255,255,.06);border:1px solid rgba(120,200,255,.18);color:#c6e2f7;}
  .opt:hover{background:rgba(120,200,255,.16);color:#fff;}
  .opt.sel{background:linear-gradient(180deg,rgba(55,230,255,.32),rgba(55,230,255,.1));
    border-color:var(--cyan);color:#fff;}
  input[type=range]{-webkit-appearance:none;appearance:none;flex:1;min-width:120px;height:6px;
    border-radius:3px;background:rgba(255,255,255,.16);outline:none;}
  input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;
    border-radius:50%;background:var(--cyan);box-shadow:0 0 8px rgba(55,230,255,.8);cursor:pointer;}
  select{background:rgba(10,20,36,.9);color:#dff3ff;border:1px solid rgba(120,200,255,.25);
    border-radius:8px;padding:6px 10px;font-size:12.5px;font-family:inherit;}
  .textin{background:rgba(10,20,36,.9);color:#dff3ff;border:1px solid rgba(120,200,255,.28);
    border-radius:8px;padding:8px 12px;font-size:13px;font-family:inherit;width:100%;
    box-sizing:border-box;outline:none;transition:.15s;}
  .textin:focus{border-color:var(--cyan);box-shadow:0 0 8px rgba(55,230,255,.35);}
  .textin::placeholder{color:#6d8aa8;}
  #multi-status{font-size:12.5px;color:#c6e2f7;line-height:1.7;min-height:22px;}
  #multi-players{display:flex;flex-direction:column;gap:6px;margin-top:8px;}
  .kv{display:flex;justify-content:space-between;padding:9px 13px;
    background:rgba(255,255,255,.04);border-radius:9px;margin-bottom:7px;font-size:13px;}
  .kv .k{color:#9dc4e0;}
  .kv .v{font-weight:900;font-variant-numeric:tabular-nums;}
  .keys-help{text-align:left;font-size:12.5px;line-height:2.1;color:#c6e2f7;
    background:rgba(255,255,255,.04);border-radius:10px;padding:12px 16px;}
  .keys-help b{color:var(--cyan);display:inline-block;min-width:74px;}
  /* 联机 UI：公共房间卡片 / 密码 / 模式场景 / 比分板 */
  .pub-card{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:14px;
    background:linear-gradient(135deg,rgba(255,196,64,.16),rgba(255,146,20,.08));
    border:1px solid rgba(255,200,80,.55);box-shadow:0 0 22px rgba(255,180,40,.28),inset 0 0 18px rgba(255,190,60,.08);
    margin-bottom:16px;animation:pubPulse 2.2s ease-in-out infinite;}
  @keyframes pubPulse{0%,100%{box-shadow:0 0 18px rgba(255,180,40,.25),inset 0 0 18px rgba(255,190,60,.06);}
    50%{box-shadow:0 0 30px rgba(255,190,50,.45),inset 0 0 22px rgba(255,200,70,.14);}}
  .pub-info{flex:1;min-width:0;}
  .pub-title{font-weight:900;font-size:14.5px;color:#ffd66b;letter-spacing:1px;}
  .pub-room{font-size:12px;color:#f0c766;margin-top:3px;font-variant-numeric:tabular-nums;}
  .pub-desc{font-size:11.5px;color:#d8b96a;margin-top:2px;}
  .pub-join{flex-shrink:0;background:linear-gradient(135deg,#ffb32d,#ff8a1e);color:#3a2400;
    font-weight:900;border:none;box-shadow:0 0 14px rgba(255,170,40,.5);padding:10px 22px;}
  .pub-join:active{transform:scale(.95);}
  .selin{display:block;width:100%;box-sizing:border-box;background:rgba(10,20,36,.9);color:#dff3ff;
    border:1px solid rgba(120,200,255,.28);border-radius:8px;padding:8px 12px;font-size:13px;
    font-family:inherit;outline:none;margin-top:6px;}
  .selin option{background:rgba(10,20,36,.98);color:#dff3ff;}
  #pvp-scoreboard{display:flex;flex-direction:column;gap:5px;margin-top:8px;max-height:180px;overflow-y:auto;}
  .score-row{display:flex;justify-content:space-between;align-items:center;padding:7px 12px;
    background:rgba(255,255,255,.05);border-radius:8px;font-size:12.5px;}
  .score-row.me{background:rgba(55,255,138,.12);border:1px solid rgba(55,255,138,.35);}
  .score-rank{color:#ffd66b;font-weight:900;width:18px;}

  /* ---------- UI 美化：玻璃拟态 / 微交互 / 高光 / 预览倒影 / 触控呼吸光 ---------- */
  .card,.row,.kv,.sec-title,.keys-help{backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
    background:rgba(14,24,44,.58);border:1px solid rgba(120,200,255,.2);}
  .card{box-shadow:0 8px 26px rgba(4,10,22,.45);}
  /* 按钮按压缩放反馈 */
  .btn:active,.opt:active,.tab:active,.sw:active,.pub-join:active,.tbtn:active{transform:scale(.94);}
  .btn,.opt,.tab,.sw,.pub-join{transition:transform .08s ease,box-shadow .15s ease,background .15s ease;}
  /* tab 高光扫过 */
  .tab{position:relative;overflow:hidden;}
  .tab.active::after{content:'';position:absolute;top:0;left:-60%;width:50%;height:100%;
    background:linear-gradient(115deg,transparent,rgba(120,220,255,.45),transparent);
    animation:tabShine .9s ease;}
  @keyframes tabShine{0%{left:-60%;}100%{left:120%;}}
  /* 面板淡入 */
  .tab-panel.active{animation:panelIn .26s ease;}
  @keyframes panelIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
  /* 3D 预览旋转光 + 地面倒影 */
  #preview-canvas{position:relative;}
  .menu-left::after{content:'';position:absolute;bottom:6px;left:10%;right:10%;height:34%;
    background:radial-gradient(ellipse at 50% 0%,rgba(55,230,255,.12),transparent 70%);
    filter:blur(14px);pointer-events:none;border-radius:50%;}
  /* 触控按钮呼吸光 */
  .tbtn{animation:tbtnBreathe 2.6s ease-in-out infinite;}
  @keyframes tbtnBreathe{0%,100%{box-shadow:0 0 8px rgba(55,230,255,.25);}
    50%{box-shadow:0 0 18px rgba(55,230,255,.55);}}
  #btn-fire{animation:tbtnBreathePink 2.6s ease-in-out infinite;}
  @keyframes tbtnBreathePink{0%,100%{box-shadow:0 0 8px rgba(255,90,160,.3);}
    50%{box-shadow:0 0 20px rgba(255,90,160,.6);}}
  /* 触控按钮按下波纹 */
  .tbtn{position:absolute;}
  .tbtn::after{content:'';position:absolute;inset:0;border-radius:50%;border:2px solid rgba(120,220,255,.6);
    opacity:0;pointer-events:none;}
  .tbtn:active::after{animation:ripple .35s ease-out;}
  @keyframes ripple{0%{transform:scale(.8);opacity:.9;}100%{transform:scale(1.6);opacity:0;}}

  /* ---------- UI 增强：主按钮呼吸光 / 菜单背景霓虹 / 标题脉冲 ---------- */
  #btn-start{position:relative;background:linear-gradient(135deg,rgba(55,230,255,.5),rgba(55,255,138,.4));
    border:1px solid rgba(140,255,230,.85);border-radius:13px;
    box-shadow:0 0 24px rgba(55,230,255,.35),inset 0 0 14px rgba(160,255,240,.12);
    animation:startGlow 2.1s ease-in-out infinite;}
  @keyframes startGlow{0%,100%{box-shadow:0 0 18px rgba(55,230,255,.32),inset 0 0 14px rgba(160,255,240,.12);}
    50%{box-shadow:0 0 36px rgba(55,255,190,.6),inset 0 0 18px rgba(160,255,240,.2);}}
  #btn-start:hover{transform:translateY(-2px) scale(1.02);}
  #menu-overlay{overflow:hidden;position:fixed;}
  #menu-overlay::before{content:'';position:absolute;inset:0;pointer-events:none;z-index:0;
    background:
      radial-gradient(circle at 15% 22%,rgba(55,230,255,.12),transparent 38%),
      radial-gradient(circle at 85% 80%,rgba(255,90,160,.1),transparent 38%),
      radial-gradient(circle at 68% 14%,rgba(255,196,77,.09),transparent 30%),
      radial-gradient(circle at 30% 88%,rgba(55,255,138,.08),transparent 32%);}
  .menu-wrap{position:relative;z-index:1;}
  .pl-title,.overlay h1{animation:titleGlow 3s ease-in-out infinite;}
  @keyframes titleGlow{0%,100%{text-shadow:0 0 16px var(--cyan);}50%{text-shadow:0 0 30px var(--cyan),0 0 10px rgba(255,255,255,.55);}}

  /* ---------- touch ---------- */
  #touch-controls{position:fixed;inset:0;z-index:30;display:none;pointer-events:none;touch-action:none;}
  body.touch #touch-controls{display:block;}
  body.menu #touch-controls{display:none !important;}
  #look-zone{position:absolute;inset:0;pointer-events:auto;}
  #joystick-zone{position:absolute;left:22px;bottom:26px;width:150px;height:150px;pointer-events:auto;}
  #joystick-base{position:absolute;left:50%;top:50%;width:120px;height:120px;margin:-60px 0 0 -60px;
    border-radius:50%;border:2px solid rgba(55,230,255,.5);
    background:radial-gradient(circle,rgba(55,230,255,.12),rgba(6,12,26,.35));}
  #joystick-knob{position:absolute;left:50%;top:50%;width:54px;height:54px;margin:-27px 0 0 -27px;
    border-radius:50%;background:rgba(55,230,255,.55);border:2px solid #bff2ff;
    box-shadow:0 0 18px var(--cyan);}
  .tbtn{position:absolute;pointer-events:auto;border-radius:50%;
    border:1.5px solid rgba(55,230,255,.55);background:rgba(6,12,26,.5);color:#dff3ff;
    font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;
    text-align:center;backdrop-filter:blur(3px);touch-action:none;line-height:1.15;}
  .tbtn:active,.tbtn.active{background:rgba(55,230,255,.4);box-shadow:0 0 20px var(--cyan);}
  #btn-fire{right:24px;bottom:32px;width:94px;height:94px;font-size:15px;
    border-color:rgba(255,90,160,.7);}
  #btn-fire:active,#btn-fire.active{background:rgba(255,90,160,.45);box-shadow:0 0 24px var(--pink);}
  #btn-aim{right:132px;bottom:114px;width:60px;height:60px;}
  #btn-jump{right:28px;bottom:146px;width:62px;height:62px;}
  #btn-reload{right:136px;bottom:38px;width:60px;height:60px;}
  #btn-switch{right:204px;bottom:92px;width:56px;height:56px;}
  #btn-gyro{right:24px;bottom:254px;width:60px;height:60px;}
  #btn-nade{right:200px;bottom:158px;width:56px;height:56px;}
#btn-act{right:276px;bottom:230px;width:56px;height:56px;}
  .hidden{display:none !important;}

  @media (max-width:820px){
    #menu-overlay{overflow:hidden;}
    .menu-wrap{flex-direction:column;height:100%;overflow:hidden;}
    .menu-left{width:100%;min-width:0;height:27vh;padding:8px;border-right:none;
      border-bottom:1px solid rgba(120,200,255,.18);gap:4px;flex-shrink:0;}
    #preview-canvas{max-width:none;min-height:110px;}
    .pl-title{font-size:15px;letter-spacing:3px;}
    .pl-sub{display:none;}
    .pl-coins{font-size:14px;}
    .menu-right{padding:10px 12px;min-height:0;flex:1;overflow:hidden;}
    .tabs{gap:6px;margin-bottom:8px;flex-shrink:0;}
    .tab{padding:6px 11px;font-size:12px;letter-spacing:1px;}
    .tab-panel{padding-right:0;padding-bottom:48px;}
    .grid{grid-template-columns:1fr;}
    #minimap{width:104px;height:104px;top:104px;}
    #killfeed{top:216px;width:150px;}
    /* 触控按钮收紧到右侧，避免与左侧摇杆重叠 */
    #btn-fire{right:14px;bottom:24px;width:84px;height:84px;font-size:14px;}
    #btn-jump{right:106px;bottom:26px;width:52px;height:52px;}
    #btn-aim{right:106px;bottom:90px;width:52px;height:52px;}
    #btn-reload{right:106px;bottom:154px;width:48px;height:48px;}
    #btn-switch{right:20px;bottom:116px;width:48px;height:48px;}
    #btn-nade{right:20px;bottom:172px;width:48px;height:48px;}
#btn-act{right:96px;bottom:244px;width:48px;height:48px;}
    #btn-gyro{right:20px;bottom:228px;width:52px;height:52px;}
    #joystick-zone{left:14px;bottom:20px;width:128px;height:128px;}
    #joystick-base{width:104px;height:104px;margin:-52px 0 0 -52px;}
    #joystick-knob{width:46px;height:46px;margin:-23px 0 0 -23px;}
  }

  /* 触屏设备统一定位（不受宽度断点影响，杜绝按钮互相重叠；横屏/大屏触屏也生效） */
  @media (pointer:coarse){
    #btn-fire{right:16px;bottom:24px;width:86px;height:86px;font-size:14px;}
    #btn-jump{right:114px;bottom:24px;width:56px;height:56px;}
    #btn-aim{right:114px;bottom:92px;width:56px;height:56px;}
    #btn-reload{right:16px;bottom:120px;width:56px;height:56px;}
    #btn-switch{right:114px;bottom:160px;width:52px;height:52px;}
    #btn-nade{right:16px;bottom:186px;width:52px;height:52px;}
#btn-act{right:92px;bottom:258px;width:52px;height:52px;}
    #btn-gyro{right:16px;bottom:248px;width:52px;height:52px;}
    #joystick-zone{left:16px;bottom:20px;width:128px;height:128px;}
    #joystick-base{width:104px;height:104px;margin:-52px 0 0 -52px;}
    #joystick-knob{width:46px;height:46px;margin:-23px 0 0 -23px;}
    /* 聊天按钮移到摇杆正上方，避免与摇杆重叠误触 */
    #chat-btn{left:16px;bottom:158px;right:auto;}
    #chat-panel{left:16px;bottom:204px;width:min(300px,68vw);}
  }
  /* 聊天面板打开时隐藏触控按钮，避免误触 */
  body.chat-open #touch-controls{pointer-events:none;}
  body.chat-open #look-zone{pointer-events:none;}

/* ================= 回收行动（撤离玩法） ================= */
#ext-hud {
  position: fixed; top: 58px; left: 50%; transform: translateX(-50%); z-index: 40;
  display: flex; gap: 16px; align-items: center; padding: 6px 18px;
  background: rgba(8,16,28,.62); border: 1px solid rgba(90,220,255,.35); border-radius: 10px;
  color: #cfe8ff; font-size: 14px; font-weight: 700; letter-spacing: .5px; pointer-events: none;
}
#ext-hud .bag { color: #8ef0ff; }
#ext-val { color: #ffd166; }
#ext-time { color: #ffffff; }
#ext-hud.danger #ext-time { color: #ff6b8a; text-shadow: 0 0 10px rgba(255,80,120,.75); }
#ext-barwrap {
  position: fixed; bottom: 134px; left: 50%; transform: translateX(-50%); z-index: 42;
  width: min(340px, 72vw); text-align: center; pointer-events: none;
}
#ext-bar-lbl { font-size: 12px; color: #cfa9ff; font-weight: 800; letter-spacing: 1px; margin-bottom: 5px; text-shadow: 0 0 10px rgba(150,80,255,.8); }
#ext-bar { height: 14px; border-radius: 8px; background: rgba(10,16,30,.72); border: 1px solid rgba(170,110,255,.55); overflow: hidden; }
#ext-bar i { display: block; height: 100%; width: 0%; background: linear-gradient(90deg,#7f5aff,#c37dff,#ffcc33); border-radius: 8px; }
#ext-hint {
  position: fixed; bottom: 204px; left: 50%; transform: translateX(-50%); z-index: 41;
  padding: 7px 16px; background: rgba(8,14,26,.72); border: 1px solid rgba(90,220,255,.4);
  border-radius: 9px; color: #dff3ff; font-size: 13.5px; font-weight: 700; pointer-events: none;
}
#ext-hint b { color: #ffcc33; }
#extract-summary { margin: 12px 0 4px; font-size: 13.5px; color: #cfe8ff; line-height: 1.9; }
#extract-summary b { color: #ffd166; }
#extract-summary .r0 { color: #bfc8d8; } #extract-summary .r1 { color: #37a6ff; }
#extract-summary .r2 { color: #b44dff; } #extract-summary .r3 { color: #ffcc33; }