:root{color-scheme:dark;--bg: #0c1210;--panel: #141c18cc;--gold: #f0c25a;--ink: #e8efe8;--mute: #8aa094;--line: #2a3a32;font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body,#app{margin:0;height:100%;background:var(--bg);color:var(--ink)}a{color:inherit}.hub{min-height:100%;display:grid;place-content:center;gap:12px;text-align:center;background:radial-gradient(1200px 500px at 50% -10%,#1d2a22,transparent),linear-gradient(#0c1210,#101816);padding:32px}.kicker{letter-spacing:.18em;color:var(--mute);font-size:12px;margin:0}.hub h1{font-size:clamp(40px,7vw,72px);margin:0;color:var(--gold);font-weight:700}.sub{margin:0 0 18px;color:#c5d4c8}.actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.btn{display:inline-block;min-width:220px;padding:14px 18px;border:1px solid var(--line);background:#18221c;text-decoration:none;font-size:16px}.btn.primary{background:#5a3a12;border-color:#c4923a;color:var(--gold)}.note{color:var(--mute);font-size:13px;max-width:420px;margin:18px auto 0}.stage{position:relative;height:100%;overflow:hidden;background:#0d1614}.stage canvas{display:block;width:100%;height:100%}.hud{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.hud-top{position:absolute;left:18px;top:16px;background:var(--panel);border:1px solid var(--line);padding:10px 14px;min-width:280px}.hud-title{color:var(--gold);font-size:18px;margin-bottom:4px}.hud-row{font-size:13px;color:#d5e0d6}.hud-help{position:absolute;left:18px;bottom:16px;font-size:12px;color:var(--mute);background:var(--panel);padding:8px 12px}.hud-btn,.back{pointer-events:auto;position:absolute;border:1px solid #c4923a;background:#5a3a12;color:var(--gold);padding:10px 16px;font:inherit;cursor:pointer;text-decoration:none}.hud-btn{right:18px;top:16px}.back{right:18px;bottom:16px;background:#18221c;border-color:var(--line);color:var(--ink)}.hud-end{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-content:center;text-align:center;font-size:36px;color:var(--gold);background:#0c1210aa}.hud-end span{font-size:16px;color:var(--mute)}