/* ============ 霓虹坦克 全局样式 ============ */
:root{
  --bg-deep:#04060c; --bg-grid:#0b1220;
  --neon-cyan:#00f0ff; --neon-mag:#ff2d95; --neon-yellow:#ffd60a;
  --neon-green:#3dff6e; --neon-red:#ff3b3b; --text-main:#e8f4ff;
  --glass:rgba(12,18,32,.72); --stroke:rgba(0,240,255,.35);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;overflow:hidden;background:var(--bg-deep);
  font-family:"Segoe UI","Microsoft YaHei",system-ui,sans-serif;color:var(--text-main);
  user-select:none;-webkit-user-select:none;touch-action:none}
#app{position:fixed;inset:0;display:flex;align-items:center;justify-content:center}
#game{background:var(--bg-deep);box-shadow:0 0 60px rgba(0,240,255,.12);border:1px solid rgba(0,240,255,.18)}

/* ---- 覆盖层 ---- */
#scanlines{position:absolute;inset:0;pointer-events:none;z-index:40;opacity:.06;
  background:repeating-linear-gradient(0deg,#fff 0 1px,transparent 1px 3px)}
#vignette{position:absolute;inset:0;pointer-events:none;z-index:39;
  background:radial-gradient(ellipse at center,transparent 58%,rgba(0,0,0,.55) 100%)}
#vignette.low-hp{animation:lowhp 1s ease-in-out infinite}
@keyframes lowhp{0%,100%{box-shadow:inset 0 0 40px rgba(255,59,59,0)}50%{box-shadow:inset 0 0 140px rgba(255,59,59,.45)}}

/* ---- 通用 ---- */
.hidden{display:none!important}
.glass{background:var(--glass);border:1px solid var(--stroke);border-radius:10px;
  box-shadow:0 0 14px rgba(0,240,255,.10), inset 0 0 18px rgba(0,240,255,.04);backdrop-filter:blur(4px)}

/* ---- 按钮 ---- */
.neon-btn{position:relative;display:inline-block;background:rgba(0,240,255,.06);color:var(--neon-cyan);
  border:1px solid var(--neon-cyan);border-radius:8px;padding:10px 26px;font-size:16px;letter-spacing:2px;
  cursor:pointer;transition:all .15s;text-shadow:0 0 8px var(--neon-cyan);
  box-shadow:0 0 12px rgba(0,240,255,.25), inset 0 0 10px rgba(0,240,255,.08),
    0 0 0 2px rgba(18,44,140,.55), 0 0 22px 4px rgba(18,44,190,.55)}
.neon-btn:hover{background:rgba(0,240,255,.16);box-shadow:0 0 22px rgba(0,240,255,.55), inset 0 0 14px rgba(0,240,255,.15),
    0 0 0 3px rgba(24,56,170,.75), 0 0 34px 8px rgba(24,56,210,.7);transform:translateY(-2px)}
.neon-btn:active{transform:translateY(0)}
.neon-btn.big{font-size:22px;padding:14px 10px;width:280px}
.neon-btn.small{font-size:14px;padding:8px 18px}
.neon-btn.mag{color:var(--neon-mag);border-color:var(--neon-mag);text-shadow:0 0 8px var(--neon-mag);
  background:rgba(255,45,149,.06);box-shadow:0 0 12px rgba(255,45,149,.25), 0 0 0 2px rgba(18,44,140,.55), 0 0 22px 4px rgba(18,44,190,.55)}
.neon-btn.mag:hover{background:rgba(255,45,149,.16);box-shadow:0 0 22px rgba(255,45,149,.55), 0 0 0 3px rgba(24,56,170,.75), 0 0 30px 7px rgba(24,56,210,.65)}
.neon-btn.yellow{color:var(--neon-yellow);border-color:var(--neon-yellow);text-shadow:0 0 8px var(--neon-yellow);
  background:rgba(255,214,10,.06);box-shadow:0 0 12px rgba(255,214,10,.25), 0 0 0 2px rgba(18,44,140,.55), 0 0 22px 4px rgba(18,44,190,.55)}
.neon-btn.yellow:hover{background:rgba(255,214,10,.16);box-shadow:0 0 22px rgba(255,214,10,.55), 0 0 0 3px rgba(24,56,170,.75), 0 0 30px 7px rgba(24,56,210,.65)}
.neon-btn.red{color:var(--neon-red);border-color:var(--neon-red);text-shadow:0 0 8px var(--neon-red)}
.neon-btn:disabled{opacity:.35;cursor:not-allowed;filter:grayscale(.6)}
.icon-btn{background:none;border:1px solid var(--stroke);color:var(--neon-cyan);border-radius:6px;
  width:34px;height:28px;cursor:pointer;font-weight:bold;
  box-shadow:0 0 0 2px rgba(18,44,140,.45), 0 0 14px 3px rgba(18,44,190,.45)}
.icon-btn:hover{box-shadow:0 0 10px rgba(0,240,255,.5), 0 0 0 3px rgba(24,56,170,.7), 0 0 22px 6px rgba(24,56,210,.6)}

/* ---- 屏幕 ---- */
.screen{position:absolute;inset:0;z-index:30;display:none;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;background:rgba(5,8,15,.86);backdrop-filter:blur(5px)}
.screen.active{display:flex}
.screen-title{font-size:34px;letter-spacing:10px;color:var(--neon-cyan);text-shadow:0 0 18px var(--neon-cyan);margin-bottom:8px}
.menu-col{display:flex;flex-direction:column;gap:14px;align-items:center}
.menu-row{display:flex;gap:14px}
.back-btn{position:absolute;left:24px;bottom:24px}

/* ---- LOGO ---- */
.logo{font-size:64px;font-weight:900;letter-spacing:14px;color:#fff;position:relative;
  text-shadow:0 0 10px var(--neon-cyan),0 0 30px var(--neon-cyan),0 0 60px rgba(0,240,255,.5)}
.logo.glitch{animation:glitch 3.2s infinite}
@keyframes glitch{0%,91%,94%,100%{transform:translate(0)}92%{transform:translate(-3px,1px);text-shadow:-3px 0 var(--neon-mag),3px 0 var(--neon-cyan)}
  93%{transform:translate(3px,-1px);text-shadow:3px 0 var(--neon-mag),-3px 0 var(--neon-cyan)}}
.logo-sub{letter-spacing:6px;color:rgba(232,244,255,.6);font-size:14px;margin-bottom:18px}
.best-line{font-size:13px;color:rgba(232,244,255,.55);letter-spacing:1px;margin-top:16px}

/* ---- HUD ---- */
#hud{position:absolute;inset:0;pointer-events:none;z-index:20}
#hud-top{position:absolute;top:12px;left:12px;right:12px;display:flex;align-items:flex-start;gap:10px;pointer-events:none}
#hud-right{margin-left:auto;display:flex;align-items:center;gap:10px;padding:5px 10px;pointer-events:auto}
#crystal-count{color:var(--neon-yellow);text-shadow:0 0 8px var(--neon-yellow);font-weight:bold}
#hp-wrap{position:relative;width:230px;height:26px;overflow:hidden}
#hp-bar{position:absolute;left:0;top:0;bottom:0;width:100%;
  background:linear-gradient(90deg,var(--neon-mag),#ff6ec7);box-shadow:0 0 12px var(--neon-mag);transition:width .15s}
#shield-bar{position:absolute;left:0;top:0;bottom:0;width:0;background:rgba(61,255,110,.5);box-shadow:0 0 10px var(--neon-green)}
#hp-text{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:bold;
  text-shadow:0 1px 2px #000}
#wave-info{padding:6px 14px;font-size:14px;letter-spacing:1px;color:var(--text-main)}
#dash-wrap{position:absolute;left:14px;bottom:52px;padding:6px 10px;font-size:12px;display:flex;align-items:center;gap:8px}
#dash-track{width:90px;height:8px;background:rgba(255,255,255,.08);border-radius:4px;overflow:hidden}
#dash-bar{height:100%;width:100%;background:var(--neon-cyan);box-shadow:0 0 8px var(--neon-cyan)}
#xp-wrap{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);width:min(46%,480px);height:20px;display:flex;align-items:center;padding:0 10px;gap:8px}
#xp-bar{flex:1;height:8px;border-radius:4px;background:rgba(255,255,255,.08);overflow:hidden;position:relative}
#xp-fill{position:absolute;left:0;top:0;bottom:0;width:0%;background:linear-gradient(90deg,var(--neon-yellow),#fff2a8);
  box-shadow:0 0 10px var(--neon-yellow);transition:width .15s}
#lvl-text{font-size:13px;color:var(--neon-yellow);font-weight:bold;text-shadow:0 0 8px var(--neon-yellow)}
#xp-bar>i{position:absolute;left:0;top:0;bottom:0;width:0;background:linear-gradient(90deg,var(--neon-yellow),#fff2a8);box-shadow:0 0 10px var(--neon-yellow)}

/* BOSS 血条 */
#boss-bar{position:absolute;top:52px;left:50%;transform:translateX(-50%);width:min(62%,640px);text-align:center;pointer-events:none}
#boss-name{font-size:15px;letter-spacing:4px;color:var(--neon-red);text-shadow:0 0 10px var(--neon-red);margin-bottom:4px;font-weight:bold}
#boss-track{position:relative;height:14px;background:rgba(255,59,59,.12);border:1px solid rgba(255,59,59,.5);
  border-radius:4px;overflow:hidden;box-shadow:0 0 14px rgba(255,59,59,.35)}
#boss-fill{position:absolute;left:0;top:0;bottom:0;width:100%;
  background:linear-gradient(90deg,#ff3b3b,#ff7a5c);box-shadow:0 0 10px var(--neon-red);transition:width .12s}
#boss-segs span{position:absolute;top:0;bottom:0;width:2px;background:rgba(255,255,255,.55)}

/* ---- 播报 ---- */
#announce{position:absolute;top:34%;left:0;right:0;text-align:center;z-index:25;pointer-events:none}
#announce .ann{font-size:52px;font-weight:900;letter-spacing:12px;color:#fff;
  text-shadow:0 0 14px var(--neon-cyan),0 0 40px var(--neon-cyan);
  animation:annIn .5s cubic-bezier(.2,1.4,.4,1) both}
#announce .ann.warn{color:#fff;text-shadow:0 0 14px var(--neon-red),0 0 46px var(--neon-red);animation:annIn .5s both,warnBlink .4s .5s 3}
#announce .ann.fade{animation:annOut .4s both}
@keyframes annIn{from{transform:scale(1.8);opacity:0;filter:blur(6px)}to{transform:scale(1);opacity:1;filter:blur(0)}}
@keyframes annOut{to{opacity:0;transform:scale(.92)}}
@keyframes warnBlink{50%{opacity:.35}}

/* ---- Toast ---- */
#toasts{position:absolute;right:16px;top:70px;z-index:35;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{background:var(--glass);border:1px solid var(--neon-yellow);color:var(--neon-yellow);border-radius:8px;
  padding:10px 16px;font-size:14px;box-shadow:0 0 16px rgba(255,214,10,.35);
  animation:toastIn .3s both}
@keyframes toastIn{from{transform:translateX(40px);opacity:0}to{transform:none;opacity:1}}
.toast.out{animation:toastOut .3s both}
@keyframes toastOut{to{transform:translateX(40px);opacity:0}}

/* ---- 升级三选一 ---- */
#levelup{position:absolute;inset:0;z-index:28;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:22px;background:rgba(5,8,15,.72);backdrop-filter:blur(3px)}
.levelup-title{font-size:26px;letter-spacing:6px;color:var(--neon-yellow);text-shadow:0 0 16px var(--neon-yellow)}
.levelup-hint{font-size:12px;color:rgba(232,244,255,.5);letter-spacing:2px}
#cards{display:flex;gap:20px}
.card{width:200px;padding:20px 16px;border-radius:12px;cursor:pointer;text-align:center;
  background:var(--glass);border:1px solid var(--stroke);transition:all .15s;
  box-shadow:0 0 16px rgba(0,240,255,.12)}
.card:hover{transform:translateY(-6px) scale(1.03)}
.card .c-icon{font-size:40px;margin-bottom:10px;filter:drop-shadow(0 0 8px currentColor)}
.card .c-name{font-size:18px;font-weight:bold;margin-bottom:8px;letter-spacing:2px}
.card .c-desc{font-size:12.5px;color:rgba(232,244,255,.75);line-height:1.5;min-height:38px}
.card .c-rar{margin-top:10px;font-size:11px;letter-spacing:3px}
.card.common{border-color:rgba(0,240,255,.5);color:var(--neon-cyan)}
.card.common:hover{box-shadow:0 0 24px rgba(0,240,255,.4)}
.card.rare{border-color:rgba(177,76,255,.6);color:#c98aff}
.card.rare:hover{box-shadow:0 0 24px rgba(177,76,255,.45)}
.card.epic{border-color:rgba(255,45,149,.6);color:var(--neon-mag)}
.card.epic:hover{box-shadow:0 0 24px rgba(255,45,149,.45)}
.card.legend{border-color:var(--neon-yellow);color:var(--neon-yellow)}
.card.legend:hover{box-shadow:0 0 28px rgba(255,214,10,.5)}

/* ---- 坦克库 ---- */
#tank-cards{display:flex;gap:18px;flex-wrap:wrap;justify-content:center;max-width:1000px}
.tcard{width:220px;padding:18px;border-radius:12px;background:var(--glass);border:1px solid var(--stroke);text-align:center}
.tcard.selected{border-color:var(--neon-green);box-shadow:0 0 20px rgba(61,255,110,.35)}
.tcard .t-preview{height:64px;margin-bottom:8px}
.tcard .t-name{font-size:18px;font-weight:bold;letter-spacing:2px;margin-bottom:4px}
.tcard .t-trait{font-size:12px;color:rgba(232,244,255,.7);min-height:32px;line-height:1.4}
.tcard .t-stats{font-size:11.5px;color:rgba(232,244,255,.55);margin:8px 0 10px;line-height:1.7;text-align:left}
.tcard .t-stats b{color:var(--neon-cyan);font-weight:normal}

/* ---- 战役选关 ---- */
#level-grid{display:grid;grid-template-columns:repeat(5,110px);gap:14px}
.lvl-btn{height:76px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  box-shadow:0 0 0 2px rgba(18,44,140,.45), 0 0 16px 3px rgba(18,44,190,.45)}
.lvl-btn:hover{box-shadow:0 0 0 3px rgba(24,56,170,.7), 0 0 24px 7px rgba(24,56,210,.6)}
.lvl-btn .stars{font-size:13px;color:var(--neon-yellow);letter-spacing:2px}
.lvl-btn .stars .off{color:rgba(255,214,10,.25)}

/* ---- 成就 ---- */
#achv-list{display:flex;flex-direction:column;gap:8px;max-height:60vh;overflow-y:auto;width:min(480px,88%)}
.achv{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;
  background:var(--glass);border:1px solid var(--stroke);border-radius:8px}
.achv.done{border-color:var(--neon-yellow);box-shadow:0 0 12px rgba(255,214,10,.25)}
.achv .a-name{font-size:14px;font-weight:bold}
.achv.done .a-name{color:var(--neon-yellow)}
.achv .a-desc{font-size:12px;color:rgba(232,244,255,.55)}
.achv .a-mark{color:rgba(232,244,255,.25);font-size:18px}
.achv.done .a-mark{color:var(--neon-yellow);text-shadow:0 0 8px var(--neon-yellow)}

/* ---- 设置 ---- */
.setting-row{display:flex;align-items:center;gap:16px;width:min(360px,86%);justify-content:space-between}
.setting-row label{font-size:14px;letter-spacing:2px;color:rgba(232,244,255,.8)}
input[type=range]{width:180px;accent-color:var(--neon-cyan)}
input[type=checkbox]{width:18px;height:18px;accent-color:var(--neon-cyan)}
select{background:var(--bg-deep);color:var(--text-main);border:1px solid var(--stroke);border-radius:6px;padding:4px 10px}

/* ---- 结算 ---- */
#over-stats{display:flex;flex-direction:column;gap:6px;align-items:center;font-size:16px;letter-spacing:1px;
  color:rgba(232,244,255,.85);margin-bottom:10px}
#over-stats b{color:var(--neon-yellow);font-weight:bold}
#over-stats .line{background:var(--glass);border:1px solid var(--stroke);border-radius:6px;padding:6px 22px;min-width:280px;
  display:flex;justify-content:space-between}

/* ---- 触控摇杆 ---- */
#touch-ui{position:absolute;inset:0;z-index:22;pointer-events:none}
.joy-base{position:absolute;width:120px;height:120px;border-radius:50%;border:2px solid rgba(0,240,255,.35);
  background:rgba(0,240,255,.05);box-shadow:0 0 18px rgba(0,240,255,.18);display:none}
.joy-base.on{display:block}
.joy-nub{position:absolute;left:50%;top:50%;width:52px;height:52px;border-radius:50%;
  transform:translate(-50%,-50%);background:rgba(0,240,255,.25);border:1px solid var(--neon-cyan);
  box-shadow:0 0 14px rgba(0,240,255,.5)}

/* ---- 响应式 ---- */
@media (max-width:820px){
  .logo{font-size:40px;letter-spacing:8px}
  .neon-btn.big{width:220px;font-size:18px}
  #cards{gap:10px}.card{width:150px;padding:14px 10px}
  .card .c-icon{font-size:30px}
  #hp-wrap{width:150px}
  #screen-title{font-size:26px}
  #level-grid{grid-template-columns:repeat(3,100px)}
}