:root{--glass: rgba(14, 22, 30, .58);--glass-border: rgba(255, 255, 255, .08);--text: #e6eef5;--muted: #8fa3b5;--accent: #4fb3d9;--accent-2: #7fd1c7;--warn: #f0a35c;font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden;background:#0b1218;color:var(--text)}#app,#app canvas{position:fixed;inset:0;width:100%;height:100%;display:block}.glass{background:var(--glass);border:1px solid var(--glass-border);backdrop-filter:blur(14px) saturate(1.2);-webkit-backdrop-filter:blur(14px) saturate(1.2);border-radius:12px;box-shadow:0 8px 32px #00000047}#hud{position:fixed;inset:0;pointer-events:none;transition:opacity .4s}#hud.hidden{opacity:0}#hud>*{pointer-events:auto}#brand{position:absolute;top:18px;left:18px;padding:14px 18px;min-width:240px}.brand-title{font-size:22px;font-weight:600;letter-spacing:4px}.brand-sub{font-size:12px;color:var(--muted);margin-top:4px;letter-spacing:1px}.brand-meta{margin-top:10px;display:flex;gap:10px;align-items:center;font-size:11px}.tag{background:#4fb3d92e;color:var(--accent);border:1px solid rgba(79,179,217,.35);padding:1px 8px;border-radius:10px}.muted{color:var(--muted)}#progress{position:absolute;top:0;left:0;right:0;height:3px;pointer-events:none;transition:opacity .6s}#progress.done{opacity:0}#progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2));box-shadow:0 0 10px var(--accent);transition:width .3s}#progress-text{position:absolute;top:8px;left:50%;transform:translate(-50%);font-size:12px;color:var(--muted);background:var(--glass);padding:2px 10px;border-radius:10px}#stats{position:absolute;top:18px;right:18px;padding:10px 14px;font-size:12px;min-width:190px;font-variant-numeric:tabular-nums}#stats .row{display:flex;justify-content:space-between;gap:16px;line-height:1.75}#stats .row span{color:var(--muted)}#stats .row b{font-weight:500}#stats .warn b,#stats .warn span{color:var(--warn)}#panel{position:absolute;left:18px;bottom:18px;width:300px;font-size:12px;max-height:calc(100vh - 160px);overflow:auto}#panel.collapsed .panel-body{display:none}.panel-head{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;font-weight:600;letter-spacing:2px;border-bottom:1px solid var(--glass-border)}.panel-body{padding:6px 14px 12px}.group{padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.06)}.group:last-of-type{border-bottom:0}.group>label{display:block;color:var(--muted);margin-bottom:6px}.row-label{display:flex!important;align-items:center;justify-content:space-between}button{font:inherit;color:var(--text);background:#ffffff0f;border:1px solid rgba(255,255,255,.1);border-radius:7px;padding:5px 10px;cursor:pointer;transition:background .15s,border-color .15s}button:hover{background:#4fb3d92e;border-color:#4fb3d973}button.active,button.toggle.on{background:#4fb3d952;border-color:var(--accent);color:#fff}button.icon{padding:0 8px;line-height:20px}.btns{display:flex;flex-wrap:wrap;gap:6px}.btns.small{margin-top:6px}.btns.small button{padding:3px 8px;font-size:11px}.seg{display:flex;border-radius:8px;overflow:hidden;border:1px solid rgba(255,255,255,.1)}.seg button{flex:1;border:0;border-radius:0}.seg button+button{border-left:1px solid rgba(255,255,255,.08)}.checks{display:grid;grid-template-columns:1fr 1fr;gap:4px 8px}.checks label{display:flex;gap:6px;align-items:center;cursor:pointer}input[type=checkbox]{accent-color:var(--accent)}.slider-row{display:grid;grid-template-columns:30px 1fr 74px;gap:8px;align-items:center;margin-top:6px}.slider-row span{color:var(--muted)}.slider-row b{font-weight:500;text-align:right;font-variant-numeric:tabular-nums}input[type=range]{width:100%;accent-color:var(--accent)}#water-ctrl.disabled{opacity:.45}.hint{margin-top:8px;color:var(--muted);font-size:11px;line-height:1.6}#toast{position:absolute;bottom:24px;left:50%;transform:translate(-50%,20px);opacity:0;background:var(--glass);border:1px solid var(--glass-border);padding:8px 16px;border-radius:20px;font-size:13px;transition:opacity .3s,transform .3s;pointer-events:none;backdrop-filter:blur(10px)}#toast.show{opacity:1;transform:translate(-50%)}body.picking #app canvas{cursor:crosshair}#splash{position:fixed;inset:0;display:grid;place-items:center;z-index:20;background:radial-gradient(ellipse at 50% 40%,#1c2d3c,#0b1218 70%);transition:opacity .9s}#splash.gone{opacity:0;pointer-events:none}.splash-inner{text-align:center}.splash-title{font-size:34px;letter-spacing:12px;font-weight:600}.splash-sub{color:var(--muted);margin-top:8px;letter-spacing:4px;font-size:13px}.splash-bar{width:280px;height:3px;background:#ffffff14;margin:26px auto 10px;border-radius:2px;overflow:hidden}.splash-bar i{display:block;height:100%;width:3%;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width .3s}.splash-msg{color:var(--muted);font-size:12px}#error{position:fixed;inset:0;z-index:30;display:grid;place-items:center;background:#05080c8c}#error[hidden]{display:none}.error-card{width:min(620px,92vw);padding:20px 24px;font-size:13px}.error-title{font-size:17px;font-weight:600;color:var(--warn);margin-bottom:10px}.error-msg{color:#ffd2b0;margin-bottom:12px;word-break:break-all}.error-url{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}.error-url span{color:var(--muted)}code{font-family:ui-monospace,Menlo,Consolas,monospace;background:#ffffff12;padding:2px 6px;border-radius:5px;word-break:break-all;user-select:all}.error-hints{color:var(--muted);padding-left:18px;line-height:1.8;margin:0 0 14px}@media(max-width:760px){#stats{display:none}#panel{width:calc(100vw - 36px);max-height:45vh}}