:root{
  --ink:#e8f1ff; --dim:#8fa3c4; --acc:#ffb03a; --acc2:#4fd2ff; --red:#ff4d5a; --grn:#5ce07a;
  --panel:rgba(10,16,28,.92); --line:rgba(120,160,220,.28);
  --font:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{width:100%;height:100%;overflow:hidden;background:#05080f;color:var(--ink);font-family:var(--font);user-select:none}
#app{position:fixed;inset:0}
canvas#game{position:absolute;inset:0;width:100%;height:100%;display:block;image-rendering:pixelated;image-rendering:crisp-edges}
.hidden{display:none !important}
button{font-family:var(--font)}

/* ---------- HUD ---------- */
#hud{position:absolute;inset:0;pointer-events:none;z-index:10}

#crosshair{position:absolute;left:50%;top:50%;width:26px;height:26px;transform:translate(-50%,-50%);opacity:.95}
#crosshair i{position:absolute;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.55)}
#crosshair i:nth-child(1){left:50%;top:0;width:2px;height:7px;margin-left:-1px}
#crosshair i:nth-child(2){left:50%;bottom:0;width:2px;height:7px;margin-left:-1px}
#crosshair i:nth-child(3){top:50%;left:0;height:2px;width:7px;margin-top:-1px}
#crosshair i:nth-child(4){top:50%;right:0;height:2px;width:7px;margin-top:-1px}
#hitmark{position:absolute;left:50%;top:50%;width:20px;height:20px;transform:translate(-50%,-50%) rotate(45deg);opacity:0}
#hitmark.on{animation:hm .22s ease-out}
#hitmark:before,#hitmark:after{content:"";position:absolute;background:#fff}
#hitmark:before{left:50%;top:0;width:2px;height:20px;margin-left:-1px}
#hitmark:after{top:50%;left:0;height:2px;width:20px;margin-top:-1px}
@keyframes hm{0%{opacity:1;transform:translate(-50%,-50%) rotate(45deg) scale(.5)}100%{opacity:0;transform:translate(-50%,-50%) rotate(45deg) scale(1.4)}}

#topbar{position:absolute;top:14px;left:50%;transform:translateX(-50%);width:min(520px,72vw);text-align:center}
#capBox{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:8px 12px}
.capRow{display:flex;justify-content:space-between;font-size:13px;margin-bottom:5px}
.capRow .lbl{color:var(--dim);letter-spacing:2px}
.capRow b{color:var(--acc);font-size:16px;font-variant-numeric:tabular-nums}
#capBar{height:8px;background:#0d1524;border:1px solid var(--line);border-radius:4px;overflow:hidden}
#capFill{display:block;height:100%;width:0%;background:linear-gradient(90deg,#2f7fd6,#4fd2ff);transition:width .12s linear}
#capState{margin-top:5px;font-size:12px;color:var(--dim)}
#timerBox{margin-top:8px;font-size:22px;font-variant-numeric:tabular-nums;text-shadow:0 2px 0 #000}
#timerBox b{color:var(--ink)}

#feed{position:absolute;top:96px;right:18px;width:280px;text-align:right;display:flex;flex-direction:column;gap:4px}
.feedItem{background:rgba(8,14,26,.78);border-right:3px solid var(--acc);padding:3px 8px;font-size:12px;animation:fi .25s ease-out}
@keyframes fi{from{opacity:0;transform:translateX(14px)}to{opacity:1;transform:none}}

#dmgFlash{position:absolute;inset:0;pointer-events:none;opacity:0;
  background:radial-gradient(ellipse at center,transparent 38%,rgba(200,20,40,.62) 100%);transition:opacity .18s}
#centerMsg{position:absolute;left:50%;top:32%;transform:translateX(-50%);font-size:30px;font-weight:800;
  text-shadow:0 3px 0 #000,0 0 22px rgba(0,0,0,.8);opacity:0;transition:opacity .2s;white-space:nowrap}
#centerMsg.on{opacity:1}
#ultBanner{position:absolute;left:50%;top:44%;transform:translateX(-50%);font-size:26px;font-weight:800;color:var(--acc);
  text-shadow:0 0 20px rgba(255,176,58,.85),0 3px 0 #000;opacity:0;letter-spacing:4px}
#ultBanner.on{animation:ub 1.5s ease-out}
@keyframes ub{0%{opacity:0;transform:translateX(-50%) scale(.7)}18%{opacity:1;transform:translateX(-50%) scale(1)}75%{opacity:1}100%{opacity:0}}

#bottombar{position:absolute;left:0;right:0;bottom:16px;display:flex;justify-content:space-between;padding:0 22px;align-items:flex-end}
#leftBox{width:min(320px,32vw)}
#hpRow{font-size:12px;color:var(--dim);margin-bottom:4px}
#hpRow b{font-size:22px;color:var(--ink);font-variant-numeric:tabular-nums}
#shieldTag{color:var(--acc2);font-size:14px;margin-left:4px}
#hpBar{height:11px;background:#0d1524;border:1px solid var(--line);border-radius:5px;overflow:hidden}
#hpFill{display:block;height:100%;width:100%;background:linear-gradient(90deg,#e8f1ff,#cfd9ea)}

#rightBox{text-align:right}
#ammoVal{font-size:26px;font-variant-numeric:tabular-nums;text-shadow:0 2px 0 #000}
#ammoVal.low{color:var(--red)}
.weaponName{font-size:14px;font-weight:700;letter-spacing:2px;color:var(--acc);text-shadow:0 2px 0 #000;margin-bottom:2px}

/* 武器拾取提示 */
.pickupHint{position:absolute;left:50%;top:62%;transform:translateX(-50%);font-size:18px;font-weight:700;
  color:#eafff0;text-shadow:0 2px 0 #000,0 0 16px rgba(124,255,107,.8);opacity:0;transition:opacity .15s;
  background:rgba(10,20,14,.55);border:1px solid rgba(124,255,107,.5);border-radius:8px;padding:6px 14px;pointer-events:none}
.pickupHint.on{opacity:1;animation:ph 1.1s ease-in-out infinite}
@keyframes ph{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-4px)}}
#ultRow{display:flex;align-items:center;gap:6px;justify-content:flex-end;margin-top:6px}
#ultRow .lbl{font-size:11px;color:var(--dim)}
#ultBar{width:120px;height:6px;background:#0d1524;border:1px solid var(--line);border-radius:3px;overflow:hidden}
#ultFill{display:block;height:100%;width:0%;background:linear-gradient(90deg,#ff8a2b,#ffd76a)}
#ultPct{font-size:11px;color:var(--acc);width:34px;text-align:left;font-variant-numeric:tabular-nums}
#skills{display:flex;gap:8px;justify-content:flex-end;margin-top:8px}
.skill{position:relative;width:44px;height:44px;background:rgba(8,14,26,.82);border:1px solid var(--line);border-radius:5px;overflow:hidden}
.skill.ult{border-color:rgba(255,176,58,.6)}
.skill canvas{position:absolute;left:10px;top:6px;width:24px;height:24px;image-rendering:pixelated}
.skill .key{position:absolute;left:3px;bottom:1px;font-size:9px;color:var(--dim)}
.skill .nm{position:absolute;right:3px;bottom:1px;font-size:9px;color:var(--dim)}
.skill .num{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:17px;font-weight:700;text-shadow:0 2px 0 #000}
.skill .cd{position:absolute;left:0;right:0;bottom:0;height:0%;background:rgba(6,10,20,.78);transition:height .1s linear}
#scoreStrip{position:absolute;left:22px;top:18px;font-size:13px;color:var(--dim);display:flex;gap:16px}
#scoreStrip b{color:var(--ink);font-size:17px}

/* ---------- 菜单 / 面板 ---------- */
#menu,#pause,#result{position:absolute;inset:0;z-index:20;display:flex;align-items:center;justify-content:center}
#menu{background:radial-gradient(ellipse at 50% 30%,#16233c 0%,#070b14 70%)}
#menuInner{text-align:center;width:min(920px,94vw)}
.title{font-size:min(64px,9vw);font-weight:900;letter-spacing:8px;
  background:linear-gradient(180deg,#fff,#ffb03a);-webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:0 6px 0 rgba(0,0,0,.35)}
.subtitle{margin-top:6px;font-size:13px;color:var(--dim);letter-spacing:3px}
#heroCards{display:flex;gap:16px;justify-content:center;margin:26px 0 22px;flex-wrap:wrap}
.heroCard{width:220px;background:rgba(12,20,36,.9);border:2px solid var(--line);border-radius:8px;padding:14px;cursor:pointer;transition:.15s}
.heroCard:hover{border-color:rgba(120,180,255,.6);transform:translateY(-3px)}
.heroCard.sel{border-color:var(--acc);box-shadow:0 0 0 1px var(--acc),0 8px 26px rgba(255,176,58,.18)}
.heroCard h3{font-size:19px;margin-bottom:2px}
.heroCard .role{font-size:11px;color:var(--acc);letter-spacing:2px;margin-bottom:8px}
.heroCard .stat{display:flex;justify-content:space-between;font-size:11px;color:var(--dim);margin:2px 0}
.heroCard .desc{font-size:11px;color:#a9bcd8;margin-top:8px;line-height:1.5;min-height:52px}
.heroCard .skl{font-size:11px;color:#cfe0ff;margin-top:6px;text-align:left;line-height:1.6}
.btn{pointer-events:auto;background:#16233c;color:var(--ink);border:1px solid var(--line);border-radius:6px;
  padding:11px 30px;font-size:15px;cursor:pointer;margin:6px 5px;transition:.15s}
.btn:hover{background:#1e314f;border-color:rgba(120,180,255,.55)}
.btn.primary{background:linear-gradient(180deg,#ff9d1f,#e8780a);border-color:#ffc061;color:#1a1205;font-weight:800}
.btn.primary:hover{filter:brightness(1.1)}
.btn.tiny{padding:6px 14px;font-size:12px;background:transparent}
.help{margin-top:14px;font-size:12px;color:var(--dim);line-height:1.9}
.tip{margin-top:6px;font-size:11px;color:#6f86a8}

.dim{position:absolute;inset:0;background:rgba(3,6,12,.78);backdrop-filter:blur(2px)}
.panel{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:26px 34px;text-align:center;min-width:320px}
.panel.wide{min-width:420px}
.ptitle{font-size:34px;font-weight:900;letter-spacing:4px;margin-bottom:6px}
.phelp{font-size:13px;color:var(--dim);margin-bottom:16px}
.stats{display:flex;gap:26px;justify-content:center;margin:14px 0 20px}
.stats div{display:flex;flex-direction:column;gap:4px}
.stats span{font-size:11px;color:var(--dim);letter-spacing:1px}
.stats b{font-size:26px;font-variant-numeric:tabular-nums}

#loading{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:30;font-size:14px;color:var(--dim);letter-spacing:3px}