:root {
  --gun-bg: #0f181f;
  --gun-stage: #16242a;
  --gun-panel: #18262b;
  --gun-panel-2: #203238;
  --gun-ink: #f3f1e9;
  --gun-muted: #9eb0ae;
  --gun-mint: #a6e3c6;
  --gun-orange: #ffb45c;
  --gun-coral: #ed6a5a;
  --gun-line: rgba(243, 241, 233, .14);
}
body.gunlab-page { background: var(--gun-bg); color: var(--gun-ink); overflow: hidden; }
body.gunlab-page .site-header, body.gunlab-page .site-footer { display: none; }
body.gunlab-page main { min-height: 100vh; padding: 0; }
.gunlab-shell { min-height: 100vh; padding: 18px; display: flex; flex-direction: column; gap: 14px; }
.gunlab-topbar { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 42px; }
.gunlab-back { color: var(--gun-muted); text-decoration: none; font: 700 13px/1 Consolas, monospace; letter-spacing: .04em; }
.gunlab-back:hover { color: var(--gun-ink); }
.gunlab-title { display: flex; align-items: center; gap: 15px; }
.gunlab-title strong { font: 700 18px/1 "Arial", "Microsoft YaHei", sans-serif; letter-spacing: .02em; }
.gunlab-kicker { color: var(--gun-orange); font: 700 10px/1.2 Consolas, monospace; letter-spacing: .14em; }
.gunlab-state { justify-self: end; display: inline-flex; align-items: center; gap: 7px; color: var(--gun-muted); font-size: 12px; }
.state-light { width: 7px; height: 7px; border-radius: 50%; background: var(--gun-muted); }
.state-light.is-live { background: var(--gun-mint); box-shadow: 0 0 12px rgba(166, 227, 198, .8); }
.gunlab-layout { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) 350px; gap: 14px; }
.range-stage { position: relative; min-height: 520px; overflow: hidden; border: 1px solid var(--gun-line); border-radius: 12px; background: var(--gun-stage); box-shadow: inset 0 0 0 1px rgba(255,255,255,.02), 0 24px 80px rgba(0,0,0,.22); }
#range-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: crosshair; }
.range-crosshair { pointer-events: none; position: absolute; left: 50%; top: 50%; width: 28px; height: 28px; transform: translate(-50%, -50%); opacity: .85; }
.range-crosshair::before, .range-crosshair::after, .range-crosshair i::before, .range-crosshair i::after { content: ""; position: absolute; background: var(--gun-mint); box-shadow: 0 0 7px rgba(166,227,198,.45); }
.range-crosshair::before { width: 2px; height: 9px; left: 13px; top: 0; }.range-crosshair::after { width: 2px; height: 9px; left: 13px; bottom: 0; }
.range-crosshair i::before { height: 2px; width: 9px; left: 0; top: 13px; }.range-crosshair i::after { height: 2px; width: 9px; right: 0; top: 13px; }
.range-crosshair b { position: absolute; width: 3px; height: 3px; left: 12.5px; top: 12.5px; border-radius: 50%; background: var(--gun-orange); }
.range-hud { position: absolute; display: flex; align-items: baseline; gap: 12px; pointer-events: none; text-shadow: 0 2px 8px rgba(0,0,0,.4); }
.range-hud-top { top: 20px; left: 22px; color: var(--gun-mint); font: 700 12px/1 Consolas, monospace; letter-spacing: .1em; }
.range-hud-top span:last-child { color: var(--gun-ink); font-size: 18px; letter-spacing: 0; }
.range-hud-bottom { right: 24px; bottom: 20px; color: var(--gun-ink); font: 700 14px/1 Consolas, monospace; }
.range-hud-bottom > span:first-child { font-size: 34px; letter-spacing: -.05em; }.range-hud-bottom small { color: var(--gun-muted); font-size: 14px; letter-spacing: 0; }.range-hud-bottom > span:last-child { color: var(--gun-orange); letter-spacing: .12em; }
.stage-overlay, .stage-result, .stage-fallback { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: clamp(28px, 8vw, 100px); background: rgba(15,24,31,.74); backdrop-filter: blur(6px); }
.stage-overlay h1 { max-width: 540px; margin: 14px 0 14px; font: 700 clamp(34px, 5vw, 64px)/1.02 "Arial", "Microsoft YaHei", sans-serif; letter-spacing: -.045em; }
.stage-overlay p:not(.eyebrow), .stage-result p:not(.eyebrow), .stage-fallback p:not(.eyebrow) { max-width: 430px; margin: 0 0 24px; color: var(--gun-muted); line-height: 1.8; }
.stage-result { align-items: center; text-align: center; padding: 32px; background: rgba(15,24,31,.82); }.stage-result .eyebrow { align-self: center; }.stage-result h2 { margin: 8px 0 22px; font-size: 40px; }.stage-fallback { align-items: center; text-align: center; }
.result-grid { display: grid; grid-template-columns: repeat(3, minmax(80px, 1fr)); gap: 24px; margin-bottom: 28px; }.result-grid span { display: flex; flex-direction: column; gap: 4px; }.result-grid b { font: 700 28px/1 Consolas, monospace; color: var(--gun-mint); }.result-grid small { color: var(--gun-muted); font-size: 11px; }
.stage-toast { position: absolute; left: 50%; bottom: 74px; transform: translateX(-50%) translateY(10px); color: var(--gun-ink); background: rgba(15,24,31,.8); border: 1px solid var(--gun-line); border-radius: 999px; padding: 8px 14px; font-size: 12px; opacity: 0; pointer-events: none; transition: opacity 150ms ease, transform 150ms ease; }.stage-toast.is-visible { opacity: 1; transform: translateX(-50%); }
.gunlab-panel { min-height: 0; overflow: auto; padding: 24px; border: 1px solid var(--gun-line); border-radius: 12px; background: var(--gun-panel); }
.panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }.panel-heading h2 { margin: 7px 0 0; font: 700 25px/1.1 "Arial", "Microsoft YaHei", sans-serif; letter-spacing: -.03em; }.mode-toggle { display: inline-flex; align-items: center; gap: 7px; color: var(--gun-muted); font-size: 11px; cursor: pointer; white-space: nowrap; }.mode-toggle input { position: absolute; opacity: 0; pointer-events: none; }.mode-toggle span { width: 30px; height: 17px; border-radius: 999px; border: 1px solid var(--gun-line); background: var(--gun-panel-2); position: relative; }.mode-toggle span::after { content: ""; position: absolute; width: 11px; height: 11px; left: 2px; top: 2px; border-radius: 50%; background: var(--gun-muted); transition: transform 150ms ease, background 150ms ease; }.mode-toggle input:checked + span::after { transform: translateX(13px); background: var(--gun-orange); }
.weapon-tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin: 26px 0 14px; }.weapon-tab { border: 1px solid var(--gun-line); border-radius: 6px; padding: 9px 5px; color: var(--gun-muted); background: transparent; font: 700 11px/1.2 Consolas, monospace; cursor: pointer; }.weapon-tab:hover, .weapon-tab.is-active { color: var(--gun-bg); border-color: var(--gun-mint); background: var(--gun-mint); }
.weapon-name-row { display: flex; gap: 7px; margin-bottom: 18px; }.weapon-name-row input { min-width: 0; flex: 1; border: 0; border-bottom: 1px solid var(--gun-line); padding: 7px 0; color: var(--gun-ink); background: transparent; font: 700 17px/1.2 "Arial", "Microsoft YaHei", sans-serif; outline: 0; }.weapon-name-row input:focus { border-color: var(--gun-mint); }.icon-action { width: 33px; height: 33px; border: 1px solid var(--gun-line); border-radius: 6px; color: var(--gun-mint); background: transparent; font-size: 19px; cursor: pointer; }.icon-action:hover { background: var(--gun-panel-2); }
.control-group { margin: 17px 0; }.control-label { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; color: var(--gun-muted); font-size: 12px; }.control-label output { color: var(--gun-ink); font: 700 12px Consolas, monospace; }.control-input { width: 100%; margin-top: 7px; accent-color: var(--gun-orange); }.control-input[type=range] { height: 5px; }
.fire-mode { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; margin-top: 7px; }.fire-mode button { border: 1px solid var(--gun-line); border-radius: 5px; padding: 7px 2px; color: var(--gun-muted); background: transparent; font-size: 11px; cursor: pointer; }.fire-mode button.is-active { color: var(--gun-bg); border-color: var(--gun-orange); background: var(--gun-orange); }
.panel-actions { display: grid; gap: 8px; margin-top: 25px; }.range-button { border: 1px solid var(--gun-line); border-radius: 6px; min-height: 43px; padding: 0 16px; color: var(--gun-ink); background: transparent; font: 700 12px/1 Consolas, monospace; cursor: pointer; }.range-button:hover { border-color: var(--gun-mint); }.range-button-primary { border-color: var(--gun-orange); color: var(--gun-bg); background: var(--gun-orange); }.range-button-primary:hover { background: #ffc47d; border-color: #ffc47d; }.range-button-quiet { color: var(--gun-muted); }
.panel-note { display: flex; gap: 9px; margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--gun-line); color: var(--gun-muted); }.panel-note p { margin: 0; font-size: 11px; line-height: 1.7; }.note-mark { display: grid; place-items: center; width: 17px; height: 17px; flex: 0 0 auto; border: 1px solid var(--gun-muted); border-radius: 50%; font: 700 11px/1 Consolas, monospace; }
.gunlab-panel::-webkit-scrollbar { width: 7px; }.gunlab-panel::-webkit-scrollbar-thumb { background: var(--gun-panel-2); border-radius: 999px; }
@media (max-width: 900px) { body.gunlab-page { overflow: auto; }.gunlab-shell { min-height: 100svh; padding: 12px; }.gunlab-layout { grid-template-columns: 1fr; }.range-stage { min-height: 62svh; }.gunlab-panel { overflow: visible; }.gunlab-topbar { grid-template-columns: 1fr auto; }.gunlab-title { grid-column: 1 / -1; grid-row: 1; justify-self: center; }.gunlab-back { grid-column: 1; grid-row: 1; z-index: 1; }.gunlab-state { grid-column: 2; grid-row: 1; z-index: 1; }.stage-overlay { padding: 28px; }.stage-overlay h1 { font-size: clamp(34px, 10vw, 54px); } }
@media (prefers-reduced-motion: reduce) { .stage-toast, .mode-toggle span::after { transition: none; } }