/* ============ 星际征途 · 全局 ============ */
:root{
  --bg:#04060f;
  --panel:rgba(10,16,36,.72);
  --panel2:rgba(16,24,52,.85);
  --line:rgba(64,170,255,.35);
  --line-dim:rgba(64,170,255,.14);
  --cyan:#46dcff;
  --blue:#3d7bff;
  --mag:#c34dff;
  --gold:#ffd166;
  --red:#ff5470;
  --green:#3dffa9;
  --text:#d9ecff;
  --dim:#7fa2c8;
  --font-d:'Orbitron','PingFang SC','Microsoft YaHei',sans-serif;
  --font-m:'PingFang SC','Microsoft YaHei',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:var(--font-m);-webkit-user-select:none;user-select:none}
body{
  background:
    radial-gradient(1200px 700px at 70% -10%, rgba(61,123,255,.14), transparent 60%),
    radial-gradient(900px 600px at 10% 110%, rgba(195,77,255,.10), transparent 60%),
    var(--bg);
}

/* ============ 屏幕容器 ============ */
.screen{position:fixed;inset:0;display:none;align-items:center;justify-content:center;z-index:30;overflow:auto}
.screen.on{display:flex}
#game{position:fixed;inset:0;width:100%;height:100%;display:block;z-index:1;background:transparent}

/* ============ 主菜单 ============ */
#menu{background:linear-gradient(180deg,rgba(4,6,15,.55),rgba(4,6,15,.92))}
.menu-holo{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background:
    linear-gradient(rgba(70,220,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(70,220,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(70% 60% at 50% 40%,#000 30%,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 60% at 50% 40%,#000 30%,transparent 100%);
}
#hangarCanvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.menu-inner{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:26px;padding:30px;max-width:860px;width:100%}

.logo-wrap{text-align:center;position:relative}
.logo-sub{font-family:var(--font-d);letter-spacing:.55em;font-size:12px;color:var(--cyan);opacity:.75;margin-bottom:10px}
.logo{
  font-family:var(--font-d);font-weight:900;font-size:clamp(44px,7vw,72px);
  letter-spacing:.14em;line-height:1.05;color:#eaf6ff;
  text-shadow:0 0 24px rgba(70,220,255,.55),0 0 60px rgba(61,123,255,.4);
}
.logo-word{color:var(--cyan)}
.logo-tag{margin-top:12px;color:var(--dim);letter-spacing:.3em;font-size:13px}
.logo-sweep{
  position:absolute;bottom:-14px;left:50%;width:70%;height:1px;transform:translateX(-50%);
  background:linear-gradient(90deg,transparent,var(--cyan),var(--mag),transparent);
  animation:sweep 3.4s ease-in-out infinite;
}
@keyframes sweep{0%,100%{opacity:.25}50%{opacity:1}}

.panel-label{font-family:var(--font-d);font-size:11px;letter-spacing:.35em;color:var(--dim);margin-bottom:12px;text-align:center}
.panel-label span{color:var(--cyan);opacity:.6}

.ship-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;width:100%}
.ship-card{
  background:var(--panel);border:1px solid var(--line-dim);border-radius:12px;
  padding:16px 14px;cursor:pointer;transition:.2s;position:relative;overflow:hidden;text-align:left;
}
.ship-card::before{content:'';position:absolute;inset:0;background:linear-gradient(160deg,rgba(70,220,255,.12),transparent 60%);opacity:0;transition:.2s}
.ship-card:hover{border-color:var(--line);transform:translateY(-3px);box-shadow:0 8px 30px rgba(61,123,255,.15)}
.ship-card.sel{border-color:var(--cyan);box-shadow:0 0 0 1px var(--cyan),0 8px 34px rgba(70,220,255,.2)}
.ship-card.sel::before{opacity:1}
.ship-name{font-family:var(--font-d);font-weight:600;font-size:16px;letter-spacing:.08em;position:relative;z-index:1}
.ship-tag{display:inline-block;font-size:10px;letter-spacing:.2em;color:var(--bg);padding:2px 8px;border-radius:20px;margin-left:6px;vertical-align:2px;position:relative;z-index:1}
.ship-desc{font-size:12px;color:var(--dim);margin:8px 0 12px;line-height:1.5;position:relative;z-index:1}
.ship-bars{display:flex;gap:10px;position:relative;z-index:1}
.ship-bar{flex:1}
.ship-bar i{display:block;font-style:normal;font-size:9px;color:var(--dim);letter-spacing:.1em;margin-bottom:4px}
.ship-bar b{display:block;height:4px;border-radius:3px;background:rgba(255,255,255,.08)}
.ship-bar b em{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--cyan),var(--blue));transition:.3s}
.ship-card:nth-child(2) .ship-bar b em{background:linear-gradient(90deg,#ffd166,#ff9f43)}
.ship-card:nth-child(3) .ship-bar b em{background:linear-gradient(90deg,#c34dff,#7c4dff)}

.menu-actions{display:flex;flex-direction:column;align-items:center;gap:12px}
.sel-chip{font-size:12px;color:var(--dim);letter-spacing:.12em}

/* ============ 按钮 ============ */
.btn{
  font-family:var(--font-d);font-size:13px;letter-spacing:.16em;color:var(--text);
  background:var(--panel2);border:1px solid var(--line-dim);border-radius:8px;
  padding:12px 26px;cursor:pointer;transition:.18s;position:relative;overflow:hidden;
}
.btn:hover{border-color:var(--cyan);box-shadow:0 0 18px rgba(70,220,255,.25);color:#fff}
.btn:active{transform:scale(.97)}
.btn-primary{
  background:linear-gradient(135deg,rgba(61,123,255,.5),rgba(70,220,255,.35));
  border-color:var(--cyan);color:#fff;box-shadow:0 0 24px rgba(70,220,255,.25);
}
.btn-primary:hover{box-shadow:0 0 34px rgba(70,220,255,.5);filter:brightness(1.1)}
.btn-ghost{background:transparent;color:var(--dim)}
.btn-ghost:hover{color:var(--text)}
.btn-big{font-size:16px;padding:15px 44px;border-radius:10px}
.btn-ico{margin-right:8px;color:var(--cyan)}
.btn-row{display:flex;gap:14px;align-items:center;flex-wrap:wrap;justify-content:center}
.btn[disabled]{opacity:.4;cursor:not-allowed;box-shadow:none}

.ctrl-help{display:flex;gap:18px;flex-wrap:wrap;justify-content:center;font-size:11.5px;color:var(--dim);letter-spacing:.06em}
.ctrl-help b{color:var(--cyan);font-weight:600}

/* ============ 关卡选择 ============ */
.stage-layout{display:flex;gap:26px;width:min(1100px,94vw);height:min(720px,90vh);padding:24px 0}
.stage-side{
  width:340px;flex:none;background:var(--panel);border:1px solid var(--line-dim);border-radius:14px;
  padding:18px;display:flex;flex-direction:column;
}
.stage-side-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:14px}
.stage-side-head h2{font-family:var(--font-d);font-size:16px;letter-spacing:.2em}
.stage-progress{font-size:12px;color:var(--dim)}
.stage-progress b{color:var(--cyan);font-size:16px}
#stageList{flex:1;overflow-y:auto;display:grid;grid-template-columns:repeat(10,1fr);gap:7px;align-content:start;padding-right:4px}
#stageList::-webkit-scrollbar{width:6px}
#stageList::-webkit-scrollbar-thumb{background:rgba(70,220,255,.25);border-radius:3px}
.stage-cell{
  aspect-ratio:1;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-d);font-size:11px;border-radius:6px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--line-dim);color:var(--dim);transition:.15s;
}
.stage-cell:hover{border-color:var(--line);color:var(--text)}
.stage-cell.cur{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 12px rgba(70,220,255,.3)}
.stage-cell.done{color:var(--green);border-color:rgba(61,255,169,.4);background:rgba(61,255,169,.07)}
.stage-cell.boss{color:var(--red);border-color:rgba(255,84,112,.45);background:rgba(255,84,112,.08)}
.stage-cell.boss.done{color:var(--gold);border-color:rgba(255,209,102,.5);background:rgba(255,209,102,.08)}
.stage-cell.locked{opacity:.22;cursor:not-allowed;background:rgba(255,255,255,.02)}
.stage-side .btn-row{margin-top:14px;justify-content:space-between}

.stage-main{flex:1;display:flex;flex-direction:column;gap:18px;min-width:0}
.stage-featured{
  flex:1;background:var(--panel);border:1px solid var(--line);border-radius:14px;position:relative;
  padding:26px;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end;
}
.stage-featured::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(600px 300px at 80% 0%,rgba(61,123,255,.16),transparent 60%),
    radial-gradient(400px 260px at 10% 100%,rgba(195,77,255,.12),transparent 60%);
}
.sf-top{display:flex;justify-content:space-between;align-items:flex-start;position:relative;z-index:1}
.sf-no{font-family:var(--font-d);font-size:64px;line-height:1;color:#fff;text-shadow:0 0 30px rgba(70,220,255,.5)}
.sf-no small{font-size:16px;color:var(--dim);letter-spacing:.2em}
.sf-name{font-size:22px;font-weight:700;letter-spacing:.15em;margin-top:4px;color:var(--cyan)}
.sf-sub{font-size:12px;color:var(--dim);letter-spacing:.1em;margin-top:6px}
.sf-boss{position:absolute;top:24px;right:26px;font-family:var(--font-d);font-size:13px;letter-spacing:.3em;color:var(--red);border:1px solid var(--red);padding:6px 14px;border-radius:6px;background:rgba(255,84,112,.08)}
.sf-threat{margin-top:18px;display:flex;align-items:center;gap:10px;font-size:12px;color:var(--dim);position:relative;z-index:1}
.sf-threat i{font-style:normal;letter-spacing:.25em}
.sf-threat em{font-style:normal;color:var(--gold);letter-spacing:.3em;font-size:14px}
.sf-row{display:flex;gap:26px;margin-top:14px;flex-wrap:wrap;position:relative;z-index:1;font-size:12px;color:var(--dim)}
.sf-row b{color:var(--text);font-weight:600}

.stage-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.stat-block{background:var(--panel);border:1px solid var(--line-dim);border-radius:10px;padding:14px 16px}
.stat-label{font-size:11px;color:var(--dim);letter-spacing:.1em;margin-bottom:6px}
.stat-value{font-family:var(--font-d);font-size:15px;color:var(--cyan)}
.stat-value small{color:var(--dim);font-size:11px;letter-spacing:.1em}
.stage-main>.btn-big{align-self:center;min-width:280px}

/* ============ 升级界面 ============ */
#upgradeScreen{background:rgba(4,6,15,.88)}
.up-head{
  width:min(1000px,92vw);display:flex;justify-content:space-between;align-items:flex-end;
  padding:22px 6px 0;
}
.up-kicker{font-family:var(--font-d);font-size:11px;letter-spacing:.45em;color:var(--green);margin-bottom:6px}
.up-title{font-family:var(--font-d);font-size:26px;letter-spacing:.12em;color:#fff;text-shadow:0 0 18px rgba(70,220,255,.4)}
.up-sub{font-size:12px;color:var(--dim);letter-spacing:.2em;margin-top:6px}
.up-credits{text-align:right}
.up-credits-label{font-size:11px;color:var(--dim);letter-spacing:.15em}
.up-credits-num{font-family:var(--font-d);font-size:38px;color:var(--gold);text-shadow:0 0 20px rgba(255,209,102,.4)}
.up-credits-sub{font-size:10px;color:var(--dim);letter-spacing:.08em}

.up-grid{
  width:min(1000px,92vw);display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:14px;
  max-height:calc(100vh - 240px);overflow-y:auto;padding:4px 6px 10px;
}
.up-grid::-webkit-scrollbar{width:8px}
.up-grid::-webkit-scrollbar-thumb{background:rgba(70,220,255,.25);border-radius:4px}
.up-col{background:var(--panel);border:1px solid var(--line-dim);border-radius:14px;padding:16px}
.col-title{font-family:var(--font-d);font-size:15px;letter-spacing:.2em;margin-bottom:14px;color:#fff}
.col-tag{font-size:10px;color:var(--mag);border:1px solid rgba(195,77,255,.5);padding:2px 8px;border-radius:20px;margin-left:8px;vertical-align:2px}

.up-ship-preview{
  background:rgba(0,0,0,.3);border:1px dashed var(--line-dim);border-radius:10px;
  height:150px;margin-bottom:14px;position:relative;overflow:hidden;
}
#upShipCanvas{position:absolute;inset:0;width:100%;height:100%}
.up-ship-eyes{position:absolute;bottom:10px;left:12px;display:flex;gap:8px}
.eye{font-size:10px;color:var(--dim);background:rgba(4,6,15,.7);border:1px solid var(--line-dim);padding:3px 8px;border-radius:6px;letter-spacing:.08em}
.eye b{color:var(--cyan)}

.up-list{display:flex;flex-direction:column;gap:10px}
.up-item{
  background:rgba(0,0,0,.25);border:1px solid var(--line-dim);border-radius:10px;
  padding:12px 14px;display:flex;align-items:center;gap:14px;transition:.15s;
}
.up-item:hover{border-color:var(--line)}
.up-item.maxed{opacity:.55}
.up-item-name{font-size:14px;font-weight:700;letter-spacing:.06em}
.up-item-desc{font-size:11px;color:var(--dim);margin-top:4px;line-height:1.5}
.up-item-lv{margin-left:auto;text-align:right;flex:none}
.up-item-lv i{font-style:normal;font-family:var(--font-d);font-size:11px;color:var(--dim);letter-spacing:.15em;display:block;margin-bottom:6px}
.pips{display:flex;gap:3px;justify-content:flex-end}
.pips em{display:block;width:12px;height:5px;border-radius:2px;background:rgba(255,255,255,.1)}
.pips em.on{background:linear-gradient(90deg,var(--cyan),var(--blue));box-shadow:0 0 6px rgba(70,220,255,.5)}
.up-cost-btn{
  font-family:var(--font-d);font-size:11px;color:var(--gold);background:rgba(255,209,102,.08);
  border:1px solid rgba(255,209,102,.4);border-radius:6px;padding:7px 12px;cursor:pointer;transition:.15s;
}
.up-cost-btn:hover{background:rgba(255,209,102,.2);box-shadow:0 0 14px rgba(255,209,102,.25)}
.up-cost-btn[disabled]{opacity:.35;cursor:not-allowed}
.up-cost-btn.max{border-color:var(--green);color:var(--green);background:rgba(61,255,169,.08);cursor:default}
.up-cost-btn.max:hover{background:rgba(61,255,169,.08);box-shadow:none}

.up-foot{
  width:min(1000px,92vw);display:flex;justify-content:space-between;align-items:center;
  padding:16px 6px 26px;
}

/* ============ 结束/胜利/暂停 ============ */
.go-card,.vic-card,.pause-card{
  background:var(--panel2);border:1px solid var(--line);border-radius:16px;
  padding:42px 54px;text-align:center;max-width:560px;width:92vw;
  box-shadow:0 20px 80px rgba(0,0,0,.6),0 0 40px rgba(61,123,255,.12);
}
.go-kicker{font-family:var(--font-d);font-size:12px;letter-spacing:.5em;color:var(--red);margin-bottom:10px}
.go-title{font-family:var(--font-d);font-size:28px;letter-spacing:.14em;color:#fff;margin-bottom:26px}
.go-scores{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.go-scores span{font-size:12px;color:var(--dim);letter-spacing:.08em}
.go-scores b{display:block;font-family:var(--font-d);font-size:20px;color:var(--cyan);margin-top:6px}
.vic-card{border-color:var(--gold);box-shadow:0 20px 80px rgba(0,0,0,.6),0 0 60px rgba(255,209,102,.2)}
.vic-kicker{font-family:var(--font-d);font-size:12px;letter-spacing:.5em;color:var(--gold);margin-bottom:12px}
.vic-title{font-family:var(--font-d);font-size:30px;letter-spacing:.1em;color:#fff;text-shadow:0 0 24px rgba(255,209,102,.5);margin-bottom:14px}
.vic-text{color:var(--dim);font-size:13px;line-height:1.9;margin-bottom:24px}
.pause-card h2{font-family:var(--font-d);letter-spacing:.3em;margin-bottom:24px;color:#fff}

/* ============ HUD ============ */
#hud{position:fixed;inset:0;z-index:10;pointer-events:none;display:none}
#hud.on{display:block}
.hud-top{
  display:flex;justify-content:space-between;align-items:flex-start;
  padding:16px 22px 0;gap:20px;
}
.hud-stat{pointer-events:none}
.hud-stat-label{font-family:var(--font-d);font-size:10px;letter-spacing:.3em;color:var(--dim);display:block}
.hud-stat-score b{font-family:var(--font-d);font-size:26px;color:#fff;text-shadow:0 0 16px rgba(70,220,255,.6)}
.hud-stat-score i{display:block;font-style:normal;font-size:11px;color:var(--gold);min-height:14px;letter-spacing:.1em}
.hud-stat-mid{text-align:center}
.hud-stat-mid b{font-family:var(--font-d);font-size:30px;color:var(--cyan);text-shadow:0 0 18px rgba(70,220,255,.5)}
.hud-ghost{font-size:14px;color:var(--dim)}
.hud-stat-right{text-align:right}
.hud-stat-right b{font-family:var(--font-d);font-size:20px;color:var(--gold);display:block}
.hud-stat-right .hud-stat-label b{display:inline;font-size:12px;color:var(--text)}

.boss-wrap{margin-top:8px;display:none;align-items:center;gap:10px}
.boss-wrap.on{display:flex}
.boss-bar{width:220px;height:8px;border-radius:4px;background:rgba(255,255,255,.1);overflow:hidden}
.boss-fill{height:100%;width:100%;background:linear-gradient(90deg,var(--red),#ff9f43);box-shadow:0 0 12px rgba(255,84,112,.7);transition:width .1s}
.boss-name{font-family:var(--font-d);font-size:10px;letter-spacing:.25em;color:var(--red)}

.stage-progress-wrap{
  position:absolute;left:22px;right:22px;top:96px;display:flex;align-items:center;gap:12px;
}
.stage-progress-bar{flex:1;height:5px;border-radius:3px;background:rgba(255,255,255,.08);overflow:hidden}
#stageProgFill{height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--cyan));box-shadow:0 0 10px rgba(70,220,255,.6);transition:width .3s}
#stageProgTxt{font-family:var(--font-d);font-size:11px;color:var(--dim);width:44px;text-align:right}

.powerups{
  position:absolute;right:22px;top:150px;display:flex;flex-direction:column;gap:8px;align-items:flex-end;
}
.pu-chip{
  font-size:11px;letter-spacing:.08em;color:var(--cyan);background:rgba(4,10,24,.75);
  border:1px solid rgba(70,220,255,.35);padding:5px 12px;border-radius:20px;
  display:none;align-items:center;gap:8px;
}
.pu-chip.on{display:flex;animation:puIn .3s ease}
.pu-chip b{font-family:var(--font-d);color:var(--gold)}
@keyframes puIn{from{transform:translateX(20px);opacity:0}to{transform:none;opacity:1}}

.hud-bottom{
  position:absolute;left:22px;right:22px;bottom:16px;display:flex;justify-content:space-between;align-items:flex-end;
}
.hud-shield{display:flex;flex-direction:column;gap:6px}
.shield-pips{display:flex;gap:5px}
.shield-pips em{
  display:block;width:22px;height:10px;border-radius:3px;background:rgba(255,255,255,.1);
  border:1px solid rgba(70,220,255,.3);
}
.shield-pips em.on{background:linear-gradient(90deg,var(--cyan),var(--blue));box-shadow:0 0 10px rgba(70,220,255,.7)}
.hud-bonus{font-family:var(--font-d);font-size:15px;color:var(--gold);letter-spacing:.1em}
.hint-chips{display:flex;gap:10px;align-items:center}
.hint-chips span{font-family:var(--font-d);font-size:10px;letter-spacing:.15em;color:var(--cyan);border:1px solid rgba(70,220,255,.3);padding:3px 8px;border-radius:4px}
.hint-chips .hint-dim{color:var(--dim);border:none;font-family:var(--font-m)}

#stageBanner{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  pointer-events:none;opacity:0;transition:opacity .3s;
}
#stageBanner.on{opacity:1}
#stageBanner .sb-kick{font-family:var(--font-d);font-size:14px;letter-spacing:.6em;color:var(--cyan);margin-bottom:8px}
#stageBanner .sb-title{font-family:var(--font-d);font-size:56px;letter-spacing:.3em;color:#fff;text-shadow:0 0 40px rgba(70,220,255,.8)}
#stageBanner .sb-sub{font-size:14px;color:var(--dim);letter-spacing:.4em;margin-top:10px}
#stageBanner.boss .sb-kick{color:var(--red)}
#stageBanner.boss .sb-title{color:var(--red);text-shadow:0 0 40px rgba(255,84,112,.8)}

.mute-btn{
  position:fixed;right:18px;bottom:18px;z-index:60;width:42px;height:42px;border-radius:50%;
  background:rgba(10,16,36,.7);border:1px solid var(--line-dim);color:var(--text);font-size:17px;cursor:pointer;transition:.2s;
}
.mute-btn:hover{border-color:var(--cyan);box-shadow:0 0 14px rgba(70,220,255,.3)}

/* ============ 响应式 ============ */
@media (max-width:760px){
  .ship-cards{grid-template-columns:1fr}
  .up-grid{grid-template-columns:1fr}
  .stage-layout{flex-direction:column;height:auto;overflow-y:auto}
  .stage-side{width:100%}
  .stage-stats{grid-template-columns:1fr}
  .go-card,.vic-card{padding:30px 20px}
}