:root{
  --bg:#070b18;
  --panel:rgba(13,20,40,.85);
  --panel-solid:#0d1428;
  --line:rgba(120,160,255,.18);
  --cyan:#22e6ff;
  --magenta:#ff3bd6;
  --green:#35ff9e;
  --red:#ff4d5e;
  --amber:#ffc24d;
  --text:#e8f1ff;
  --dim:#8ba0c4;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html,body{width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--text);
  font-family:var(--font);user-select:none;-webkit-user-select:none;touch-action:none;}
body{position:fixed;inset:0;}
button{font-family:var(--font);cursor:pointer;border:none;background:none;color:inherit;}

/* ---------- 通用 ---------- */
.hidden{display:none !important;}
.screen{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  padding:16px;overflow:hidden;}
.dim{color:var(--dim);}
.small{font-size:12px;}
.status{color:var(--amber);font-size:14px;text-align:center;min-height:20px;margin-top:8px;}
.status.error{color:var(--red);}

/* ---------- 按钮 ---------- */
.btn{display:block;width:100%;padding:15px 16px;border-radius:14px;font-size:16px;font-weight:700;
  letter-spacing:1px;transition:transform .08s, box-shadow .2s, opacity .2s;text-align:center;}
.btn:active{transform:scale(.97);}
.btn-primary{background:linear-gradient(135deg,var(--cyan),#2f7bff);color:#04121f;box-shadow:0 6px 24px rgba(34,230,255,.35);}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text);}
.btn-solo{background:rgba(255,63,214,.14);border:1px solid rgba(255,63,214,.4);color:var(--magenta);}
.btn-danger{background:rgba(255,77,94,.18);border:1px solid rgba(255,77,94,.45);color:var(--red);}
.btn.disabled{opacity:.4;pointer-events:none;}
.btn-row{display:flex;gap:10px;}
.btn-row .btn{flex:1;}

/* ---------- 首页 ---------- */
.home-bg{position:absolute;inset:0;background:
  radial-gradient(900px 500px at 20% -10%, rgba(47,123,255,.25), transparent 60%),
  radial-gradient(800px 500px at 110% 110%, rgba(255,63,214,.22), transparent 60%),
  var(--bg);}
.home-card{position:relative;width:100%;max-width:420px;max-height:100%;overflow-y:auto;
  background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:28px 24px;
  box-shadow:0 20px 60px rgba(0,0,0,.5);backdrop-filter:blur(14px);}
.logo{text-align:center;margin-bottom:22px;}
.logo-badge{font-size:44px;filter:drop-shadow(0 0 18px rgba(34,230,255,.7));}
.logo h1{font-size:34px;letter-spacing:6px;background:linear-gradient(90deg,var(--cyan),var(--magenta));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin:6px 0 2px;}
.logo-sub{color:var(--dim);font-size:12px;letter-spacing:3px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--dim);margin-bottom:6px;}
.field input{width:100%;padding:13px 14px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text);font-size:18px;outline:none;
  transition:border .2s, box-shadow .2s;}
.field input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,230,255,.15);}
#input-room{font-size:30px;text-align:center;letter-spacing:8px;font-weight:800;}
.btn-row{margin-bottom:12px;}
.divider{display:flex;align-items:center;gap:10px;color:var(--dim);font-size:12px;margin:6px 0 12px;}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line);}
.help{margin-top:14px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.03);}
.help summary{padding:12px 14px;font-size:14px;color:var(--dim);cursor:pointer;list-style:none;}
.help summary::-webkit-details-marker{display:none;}
.help[open] summary{border-bottom:1px solid var(--line);}
.help-body{padding:12px 14px;font-size:13px;line-height:1.9;color:#b9c8e6;}
.help-body b{color:var(--cyan);}
.foot-note{text-align:center;color:var(--dim);font-size:11px;margin-top:14px;}

/* ---------- 大厅 ---------- */
.lobby-card{width:100%;max-width:440px;background:var(--panel);border:1px solid var(--line);
  border-radius:22px;padding:26px 22px;max-height:100%;overflow-y:auto;
  box-shadow:0 20px 60px rgba(0,0,0,.5);backdrop-filter:blur(14px);}
.lobby-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.lobby-label{font-size:12px;color:var(--dim);}
.lobby-room{font-size:52px;font-weight:900;color:var(--cyan);
  text-shadow:0 0 22px rgba(34,230,255,.6);line-height:1;}
.lobby-count{font-size:30px;font-weight:800;color:var(--green);text-align:right;}
.lobby-count-label{font-size:12px;color:var(--dim);text-align:right;}
.lobby-list-title{font-size:13px;color:var(--dim);margin-bottom:8px;}
.lobby-list{list-style:none;max-height:240px;overflow-y:auto;margin-bottom:14px;}
.lobby-list li{display:flex;align-items:center;gap:10px;padding:9px 12px;margin-bottom:6px;
  border-radius:10px;background:rgba(255,255,255,.04);border:1px solid var(--line);font-size:15px;}
.lobby-list li .dot{width:10px;height:10px;border-radius:50%;flex-shrink:0;}
.lobby-list li .seat{color:var(--dim);font-size:12px;margin-left:auto;}
.lobby-list li.me{background:rgba(34,230,255,.1);border-color:rgba(34,230,255,.35);}
.lobby-actions{display:flex;gap:10px;margin-top:8px;}
.lobby-actions .btn{flex:1;}

/* ---------- 游戏 HUD ---------- */
#game-canvas-wrap,#game-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;}
#game-canvas{cursor:none;}
.hud{position:absolute;inset:0;pointer-events:none;z-index:10;}
.hud-top{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;
  padding:calc(10px + env(safe-area-inset-top)) 14px 8px;}
.hud-room{font-size:13px;color:var(--dim);background:rgba(7,11,24,.55);padding:6px 12px;border-radius:20px;border:1px solid var(--line);}
.hud-room b{color:var(--cyan);}
.net-type{margin-left:8px;padding:1px 8px;border-radius:10px;font-size:11px;font-weight:700;
  background:rgba(53,255,158,.16);color:var(--green);border:1px solid rgba(53,255,158,.4);}
.net-type.relay{background:rgba(255,194,77,.16);color:var(--amber);border-color:rgba(255,194,77,.45);}
.hud-timer{font-size:22px;font-weight:800;color:var(--text);background:rgba(7,11,24,.55);
  padding:6px 16px;border-radius:20px;border:1px solid var(--line);letter-spacing:1px;min-width:96px;text-align:center;}
.hud-timer.warn{color:var(--red);animation:blink 1s infinite;}
.team-score{position:absolute;top:58px;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;
  background:rgba(7,11,24,.6);padding:5px 16px;border-radius:16px;border:1px solid var(--line);
  letter-spacing:1px;pointer-events:none;}
.team-score .ts-blue{color:#22e6ff;}
.team-score .ts-red{color:#ff5e8a;}
.team-score .ts-sep{color:var(--muted);}
.team-score b{font-size:20px;}
.hud-pause{pointer-events:auto;width:42px;height:42px;border-radius:50%;background:rgba(7,11,24,.55);
  border:1px solid var(--line);font-size:20px;color:var(--text);}
.hud-killfeed{position:absolute;top:66px;left:14px;display:flex;flex-direction:column;gap:5px;max-width:70%;}
.kf-item{font-size:12px;background:rgba(7,11,24,.6);padding:4px 10px;border-radius:8px;
  border-left:3px solid var(--cyan);animation:kfin .25s ease-out;white-space:nowrap;}
.kf-item b{color:var(--cyan);}
.kf-item .dead{color:var(--red);}
.kf-head{display:inline-block;background:var(--red);color:#fff;font-size:10px;font-weight:900;
  padding:1px 5px;border-radius:5px;margin:0 3px;letter-spacing:1px;}
/* 动态准星：仅 4 条刻度，红色，间距由 --gap 控制（CS/Valorant 风格） */
.hud-crosshair{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:40px;pointer-events:none;z-index:11;}
.ch-t{position:absolute;background:var(--red);box-shadow:0 0 4px rgba(255,60,80,.7);border-radius:1px;}
.ch-up,.ch-down{left:50%;width:2px;height:7px;margin-left:-1px;}
.ch-left,.ch-right{top:50%;height:2px;width:7px;margin-top:-1px;}
.ch-up{bottom:50%;margin-bottom:calc(4px + var(--gap,0px));}
.ch-down{top:50%;margin-top:calc(4px + var(--gap,0px));}
.ch-left{right:50%;margin-right:calc(4px + var(--gap,0px));}
.ch-right{left:50%;margin-left:calc(4px + var(--gap,0px));}
.ch-dot{display:none;}
/* 小地图雷达 */
.hud-minimap{position:absolute;top:62px;right:14px;width:128px;height:128px;border-radius:50%;
  pointer-events:none;filter:drop-shadow(0 4px 16px rgba(0,0,0,.55));}
/* 弹药 */
.hud-ammo{position:absolute;right:16px;bottom:calc(112px + env(safe-area-inset-bottom));text-align:right;pointer-events:none;min-width:120px;}
.ammo-num{font-size:30px;font-weight:900;letter-spacing:1px;line-height:1;color:#fff;text-shadow:0 0 12px rgba(34,230,255,.4);}
.ammo-num .ammo-sep,.ammo-num .ammo-mag{font-size:17px;color:var(--dim);font-weight:700;}
.ammo-bar{width:120px;height:5px;border-radius:4px;background:rgba(7,11,24,.6);margin:5px 0 0 auto;overflow:hidden;}
.ammo-bar div{height:100%;width:100%;background:linear-gradient(90deg,var(--cyan),#7df3ff);transition:width .12s;}
.hud-ammo.low .ammo-num{color:var(--amber);text-shadow:0 0 12px rgba(255,194,77,.5);}
.hud-ammo.low .ammo-bar div{background:var(--amber);}
.hud-ammo.empty .ammo-num{color:var(--red);text-shadow:0 0 12px rgba(255,77,94,.6);}
.hud-ammo.empty .ammo-bar div{background:var(--red);}
.ammo-status{font-size:12px;color:var(--amber);margin-top:4px;height:16px;font-weight:700;letter-spacing:1px;}
/* 开局倒计时 / 连杀 */
.hud-countdown{position:absolute;top:36%;left:50%;transform:translate(-50%,-50%);font-size:100px;font-weight:900;
  color:var(--cyan);text-shadow:0 0 44px rgba(34,230,255,.8);z-index:16;pointer-events:none;animation:cdpop .9s ease-out;}
.hud-countdown.go{color:var(--green);text-shadow:0 0 44px rgba(53,255,158,.8);}
.hud-streak{position:absolute;top:24%;left:50%;transform:translateX(-50%);font-size:32px;font-weight:900;
  color:var(--amber);text-shadow:0 0 26px rgba(255,194,77,.75);z-index:16;pointer-events:none;letter-spacing:4px;
  animation:streakpop 1.3s ease-out forwards;}
.game-toast{position:absolute;top:32%;left:50%;transform:translateX(-50%);font-size:22px;font-weight:900;
  color:var(--green);text-shadow:0 0 22px rgba(53,255,158,.8);z-index:16;pointer-events:none;letter-spacing:2px;
  animation:streakpop 1.1s ease-out forwards;}
/* 命中标记：4 段斜刻度，中心留空（白=命中，红=爆头） */
.hud-hitmarker{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:22px;height:22px;pointer-events:none;opacity:0;z-index:12;}
.hud-hitmarker.show{opacity:1;animation:hitmark .15s ease-out forwards;}
.hm{position:absolute;left:50%;top:50%;width:2px;height:7px;background:#fff;box-shadow:0 0 4px rgba(255,255,255,.8);border-radius:1px;transform-origin:50% 100%;}
.hm-1{transform:translate(-50%,-100%) rotate(45deg);}
.hm-2{transform:translate(-50%,-100%) rotate(-45deg);}
.hm-3{transform:translate(-50%,-100%) rotate(135deg);}
.hm-4{transform:translate(-50%,-100%) rotate(-135deg);}
.hud-hitmarker.head .hm{background:var(--red);box-shadow:0 0 6px var(--red);height:8px;}
.hud-health-wrap{position:absolute;left:14px;bottom:calc(16px + env(safe-area-inset-bottom));width:220px;}
.hud-name{font-size:12px;color:var(--dim);margin-bottom:4px;}
.hud-health-bar{height:14px;border-radius:8px;background:rgba(7,11,24,.6);border:1px solid var(--line);overflow:hidden;}
.hud-health-fill{height:100%;width:100%;background:linear-gradient(90deg,var(--green),#7dffb0);border-radius:8px;transition:width .15s;}
.hud-health-fill.low{background:linear-gradient(90deg,var(--red),#ff9a5e);}
.hud-health-fill.regen{background:linear-gradient(90deg,#27e08a,#b6ffe0);box-shadow:0 0 12px rgba(53,255,158,.7);animation:regenpulse 1s ease-in-out infinite;}
.hud-hp{position:absolute;right:4px;top:50%;transform:translateY(-50%);font-size:11px;font-weight:700;color:#04121f;}
.hud-hp.regen{color:#0a5;}
@keyframes regenpulse{0%,100%{opacity:.85;}50%{opacity:1;}}
.look-hint{position:absolute;top:38%;left:50%;transform:translateX(-50%);font-size:13px;color:#cfe6ff;
  background:rgba(7,11,24,.6);border:1px solid var(--line);padding:8px 16px;border-radius:20px;
  z-index:15;pointer-events:none;white-space:nowrap;animation:kfin .3s ease-out;}
.hud-damage{position:absolute;inset:0;pointer-events:none;opacity:0;
  background:radial-gradient(ellipse at center, transparent 40%, rgba(255,40,60,.55) 100%);}
.hud-damage.show{animation:dmgflash .3s ease-out;}
.hud-scoreboard{position:absolute;top:200px;right:12px;min-width:170px;max-width:230px;
  background:rgba(7,11,24,.72);border:1px solid var(--line);border-radius:12px;padding:8px 10px;}
.sb-title{font-size:11px;color:var(--dim);margin-bottom:6px;letter-spacing:2px;}
.sb-list{list-style:none;font-size:13px;}
.sb-list li{display:flex;gap:8px;align-items:center;padding:3px 0;border-bottom:1px solid rgba(255,255,255,.04);}
.sb-list li:last-child{border-bottom:none;}
.sb-list .rank{width:18px;color:var(--dim);font-size:11px;}
.sb-list .sname{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.sb-list .stag{color:var(--cyan);font-weight:700;min-width:20px;text-align:right;}
.sb-list li.me .sname{color:var(--green);}
.sb-list li.dead .sname{color:var(--dim);opacity:.6;}
.sb-toggle{position:absolute;top:200px;right:12px;width:40px;height:40px;border-radius:10px;
  background:rgba(7,11,24,.6);border:1px solid var(--line);color:var(--dim);font-size:16px;pointer-events:auto;}

/* ---------- 移动端控件 ---------- */
.touch{position:absolute;inset:0;pointer-events:none;z-index:5;}
.joy{position:absolute;width:130px;height:130px;border-radius:50%;
  background:rgba(255,255,255,.05);border:2px solid rgba(255,255,255,.12);pointer-events:auto;
  touch-action:none;}
.joy-move{left:24px;bottom:calc(34px + env(safe-area-inset-bottom));}
.joy-look{right:90px;bottom:calc(34px + env(safe-area-inset-bottom));}
.joy-knob{position:absolute;top:50%;left:50%;width:56px;height:56px;border-radius:50%;
  background:rgba(255,255,255,.18);transform:translate(-50%,-50%);box-shadow:0 0 14px rgba(34,230,255,.3);}
.btn-fire{position:absolute;right:18px;bottom:calc(26px + env(safe-area-inset-bottom));
  width:76px;height:76px;border-radius:50%;pointer-events:auto;touch-action:none;
  background:radial-gradient(circle at 35% 30%, rgba(255,77,94,.5), rgba(255,20,60,.75));
  border:2px solid rgba(255,120,140,.7);font-size:30px;color:#fff;
  box-shadow:0 0 22px rgba(255,50,80,.5);}
.btn-fire:active{transform:scale(.93);}
.btn-jump{position:absolute;right:24px;bottom:calc(116px + env(safe-area-inset-bottom));
  width:52px;height:52px;border-radius:50%;pointer-events:auto;touch-action:none;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);font-size:20px;color:var(--text);}
.btn-reload{position:absolute;right:108px;bottom:calc(120px + env(safe-area-inset-bottom));
  width:58px;height:58px;border-radius:50%;pointer-events:auto;touch-action:none;
  background:rgba(34,230,255,.14);border:1px solid rgba(34,230,255,.5);color:var(--cyan);
  font-size:14px;font-weight:800;letter-spacing:1px;}
.btn-reload:active{transform:scale(.92);}

/* ---------- 淘汰 / 暂停 / 结算 ---------- */
.death-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:rgba(20,0,8,.55);backdrop-filter:blur(3px);z-index:20;}
.death-title{font-size:26px;font-weight:900;color:var(--red);letter-spacing:2px;text-shadow:0 0 20px rgba(255,40,60,.6);}
.death-count{font-size:74px;font-weight:900;color:#fff;margin:6px 0;text-shadow:0 0 30px var(--red);}
.death-sub{color:var(--dim);font-size:14px;}
.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(5,8,16,.75);backdrop-filter:blur(6px);z-index:30;}
.pause-card{width:min(92vw,360px);background:var(--panel-solid);border:1px solid var(--line);
  border-radius:20px;padding:26px;text-align:center;}
.pause-card h2{font-size:24px;margin-bottom:6px;}
.pause-card p{color:var(--dim);font-size:13px;margin-bottom:18px;}
.pause-card .btn{margin-bottom:10px;}

.over-card{width:min(94vw,420px);background:var(--panel);border:1px solid var(--line);border-radius:22px;
  padding:26px 22px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.5);backdrop-filter:blur(14px);
  max-height:94vh;overflow-y:auto;}
.go-crown{font-size:52px;filter:drop-shadow(0 0 20px rgba(255,194,77,.8));}
.go-title{font-size:20px;font-weight:800;letter-spacing:4px;margin:6px 0;}
.go-winner{font-size:16px;color:var(--green);margin-bottom:16px;min-height:24px;}
.go-list{list-style:none;margin-bottom:18px;}
.go-list li{display:flex;align-items:center;gap:10px;padding:9px 12px;margin-bottom:6px;
  border-radius:10px;background:rgba(255,255,255,.04);border:1px solid var(--line);font-size:15px;}
.go-list .rank{width:26px;font-size:14px;color:var(--amber);font-weight:800;}
.go-list .gname{flex:1;text-align:left;}
.go-list .gtag{color:var(--cyan);font-weight:800;}
.go-list li.win{background:rgba(255,194,77,.12);border-color:rgba(255,194,77,.5);}
.go-actions .btn{margin-bottom:10px;}

/* ---------- Toast ---------- */
.toast{position:fixed;top:calc(14px + env(safe-area-inset-top));left:50%;transform:translateX(-50%);
  background:rgba(7,11,24,.9);border:1px solid var(--line);color:var(--text);padding:10px 18px;
  border-radius:12px;font-size:14px;z-index:100;max-width:88vw;text-align:center;
  box-shadow:0 8px 30px rgba(0,0,0,.5);animation:kfin .2s ease-out;}
.toast.error{border-color:var(--red);color:var(--red);}

/* ---------- 动画 ---------- */
@keyframes blink{0%,100%{opacity:1}50%{opacity:.45}}
@keyframes kfin{from{transform:translateY(-8px);opacity:0}to{transform:none;opacity:1}}
@keyframes hitmark{0%{opacity:1;transform:scale(1.3)}100%{opacity:0;transform:scale(.85)}}
@keyframes dmgflash{0%{opacity:1}100%{opacity:0}}
@keyframes cdpop{0%{transform:translate(-50%,-50%) scale(1.7);opacity:0}25%{opacity:1}100%{transform:translate(-50%,-50%) scale(1);opacity:1}}
@keyframes streakpop{0%{opacity:0;transform:translateX(-50%) scale(.6)}18%{opacity:1;transform:translateX(-50%) scale(1.12)}78%{opacity:1}100%{opacity:0;transform:translateX(-50%) scale(1)}}
@media (min-width:900px){
  .hud-health-wrap{width:280px;}
}
/* 小屏（手机横屏）：缩小小地图/弹药，避免遮挡 */
@media (max-width:760px),(max-height:480px){
  .hud-minimap{width:92px;height:92px;top:54px;}
  .hud-scoreboard,.sb-toggle{top:154px;}
  .hud-ammo{bottom:calc(104px + env(safe-area-inset-bottom));}
  .ammo-num{font-size:24px;}
  .ammo-bar{width:92px;}
  .hud-countdown{font-size:72px;}
  .hud-streak{font-size:24px;}
}