:root{--bg: #0d1b2a;--panel: rgba(20, 32, 48, .82);--panel-b: rgba(120, 170, 220, .25);--text: #e8eef5;--dim: #8ea3b8;--accent: #4db6e6;--warn: #ff6b5e;--ok: #6fd08c}*{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%;overflow:hidden;background:var(--bg);font-family:-apple-system,PingFang SC,Microsoft YaHei,system-ui,sans-serif;color:var(--text);-webkit-user-select:none;user-select:none}#app{position:fixed;inset:0}#scene{display:block;width:100%;height:100%;touch-action:none}#topbar{position:absolute;top:14px;left:14px;display:flex;flex-direction:column;gap:8px}#level-title{font-size:18px;font-weight:700;letter-spacing:1px;background:var(--panel);border:1px solid var(--panel-b);border-radius:10px;padding:8px 14px;backdrop-filter:blur(8px);width:fit-content}#objectives{background:var(--panel);border:1px solid var(--panel-b);border-radius:10px;padding:10px 14px;backdrop-filter:blur(8px);font-size:13px;line-height:1.9;width:fit-content;max-width:340px}.obj{color:var(--dim)}.obj.done{color:var(--ok)}.obj b{color:var(--text);font-weight:600}.obj b.warn{color:var(--warn)}.obj .dim{color:var(--dim);font-weight:400}#stats{position:absolute;left:14px;bottom:96px;display:flex;flex-direction:column;gap:6px}.stat{background:var(--panel);border:1px solid var(--panel-b);border-radius:8px;padding:6px 12px;font-size:12px;display:flex;justify-content:space-between;gap:16px;min-width:160px;backdrop-filter:blur(8px)}.stat span{color:var(--dim)}.stat b{font-weight:700}.stat b.warn{color:var(--warn)}#toolbar{position:absolute;bottom:16px;left:50%;transform:translate(-50%);display:flex;gap:18px;align-items:center}.tool-group{display:flex;gap:8px;background:var(--panel);border:1px solid var(--panel-b);border-radius:12px;padding:8px;backdrop-filter:blur(8px)}.tool-btn,.action-btn{display:flex;flex-direction:column;align-items:center;gap:2px;background:#ffffff0a;border:1px solid transparent;border-radius:8px;color:var(--text);font-size:13px;font-weight:600;padding:8px 14px;cursor:pointer;transition:all .12s;font-family:inherit}.tool-btn small{color:var(--dim);font-size:10px;font-weight:400}.tool-btn .swatch{width:20px;height:6px;border-radius:3px;margin-bottom:2px}.tool-btn:hover,.action-btn:hover{background:#ffffff1a}.tool-btn.active{border-color:var(--accent);background:#4db6e62e}.action-btn{justify-content:center}.action-btn.flood{color:#ffd27a}.action-btn:disabled{opacity:.4;cursor:not-allowed}#banner{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;padding:28px 46px;border-radius:16px;backdrop-filter:blur(10px);border:1px solid var(--panel-b)}#banner.win{background:#1e462de6}#banner.lose{background:#501e1ee6}#banner .b-title{font-size:30px;font-weight:800;margin-bottom:8px}#banner .b-sub{font-size:14px;color:var(--text);opacity:.9}#help{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(440px,88vw);background:var(--panel);border:1px solid var(--panel-b);border-radius:16px;padding:22px 24px;backdrop-filter:blur(12px)}.help-title{font-size:20px;font-weight:700;margin-bottom:12px}.help-body{font-size:13.5px;line-height:1.9;color:#cdd8e6}.help-body b{color:var(--accent)}#help button{margin-top:16px;width:100%;padding:10px;border-radius:8px;border:none;background:var(--accent);color:#06121f;font-weight:700;font-size:14px;cursor:pointer;font-family:inherit}.hidden{display:none!important}@media (max-width: 640px){#toolbar{flex-direction:column;gap:8px;bottom:10px}#stats{bottom:150px}#objectives{max-width:260px;font-size:12px}}