:root{--bg: #070d14;--panel: rgba(13, 20, 30, .82);--panel-border: rgba(120, 150, 180, .18);--text: #e6edf5;--text-dim: #8fa3b8;--accent: #d93a2b;--accent-soft: #ff6a4d}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden}body{background:var(--bg);color:var(--text);font-family:PingFang SC,Microsoft YaHei,Noto Sans CJK SC,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}#app{position:relative;width:100vw;height:100vh;overflow:hidden}#app>canvas{position:absolute;inset:0;display:block}.zq-label-layer{position:absolute;top:0;left:0;z-index:5;pointer-events:none}.zq-label{padding:3px 10px;border-radius:6px;background:#141e2cdb;border:1px solid rgba(140,170,200,.28);color:var(--text);font-size:13px;white-space:nowrap;transform:translate(-50%,-120%);box-shadow:0 2px 8px #0006}.zq-label:after{content:"";position:absolute;left:50%;top:100%;transform:translate(-50%);border:5px solid transparent;border-top-color:#8caac847}.zq-label--small{padding:1px 6px;font-size:11px;color:var(--text-dim);background:#0a1018b3;transform:translate(-100%,-50%)}.zq-label--small:after{display:none}.zq-top{position:absolute;top:0;left:0;right:0;z-index:20;display:flex;align-items:flex-start;justify-content:space-between;padding:16px 20px;pointer-events:none}.zq-brand__title{margin:0;font-size:22px;font-weight:700;letter-spacing:1px;background:linear-gradient(90deg,#ff8a70,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}.zq-brand__sub{margin-top:3px;font-size:12px;color:var(--text-dim)}.zq-variants{display:flex;gap:8px;pointer-events:auto}.zq-chip{padding:6px 12px;border-radius:999px;border:1px solid var(--panel-border);background:var(--panel);color:var(--text-dim);font-size:13px;cursor:pointer;transition:all .15s ease}.zq-chip.is-on{color:#fff;border-color:var(--accent);background:#d93a2b40}.zq-modes{position:absolute;top:78px;left:50%;transform:translate(-50%);z-index:20;display:flex;gap:4px;padding:4px;border-radius:10px;background:var(--panel);border:1px solid var(--panel-border);backdrop-filter:blur(8px)}.zq-mode{padding:7px 18px;border:none;border-radius:7px;background:transparent;color:var(--text-dim);font-size:14px;cursor:pointer;transition:all .15s ease}.zq-mode.is-on{background:var(--accent);color:#fff}.zq-panel{position:absolute;z-index:20;padding:14px 16px;border-radius:12px;background:var(--panel);border:1px solid var(--panel-border);backdrop-filter:blur(10px);box-shadow:0 8px 30px #00000073}.zq-panel__title{margin:0 0 10px;font-size:13px;font-weight:600;color:var(--text-dim);letter-spacing:2px}.zq-controls{left:20px;bottom:74px;width:220px}.zq-row{display:flex;align-items:center;gap:10px;margin-bottom:10px}.zq-row__label{font-size:13px;color:var(--text-dim);white-space:nowrap}.zq-slider{flex:1;accent-color:var(--accent);cursor:pointer}.zq-toggles{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.zq-toggle{padding:6px 10px;border-radius:8px;border:1px solid var(--panel-border);background:#ffffff08;color:var(--text-dim);font-size:13px;text-align:left;cursor:pointer;transition:all .15s ease}.zq-toggle.is-on{color:#fff;border-color:var(--accent-soft);background:#ff6a4d29}.zq-btn{width:100%;padding:8px 12px;border-radius:8px;border:1px solid var(--panel-border);background:#ffffff0d;color:var(--text);font-size:13px;cursor:pointer;transition:all .15s ease}.zq-btn:hover{background:#ffffff1a}.zq-info{right:20px;top:90px;width:300px;max-height:calc(100vh - 180px);overflow-y:auto}.zq-info__close{position:absolute;top:8px;right:10px;border:none;background:transparent;color:var(--text-dim);font-size:20px;cursor:pointer;line-height:1}.zq-info__title{margin:0 24px 2px 0;font-size:18px}.zq-info__cat{font-size:12px;color:var(--accent-soft);margin-bottom:8px}.zq-info__summary{margin:0 0 10px;font-size:13px;line-height:1.7;color:var(--text)}.zq-info__dims{font-size:12px;color:var(--text-dim);padding:8px 10px;border-radius:8px;background:#ffffff0a;margin-bottom:8px}.zq-info__facts{margin:0;padding-left:18px;font-size:12px;color:var(--text-dim);line-height:1.8}.zq-bottom{position:absolute;bottom:18px;left:50%;transform:translate(-50%);z-index:20;width:min(720px,calc(100vw - 40px));padding:14px 18px;border-radius:12px;background:var(--panel);border:1px solid var(--panel-border);backdrop-filter:blur(10px);box-shadow:0 8px 30px #00000073}.zq-lesson__title{margin:0 0 6px;font-size:16px}.zq-lesson__text{margin:0 0 10px;font-size:13px;line-height:1.7;color:var(--text)}.zq-lesson__counter{position:absolute;top:14px;right:18px;font-size:12px;color:var(--text-dim)}.zq-lesson__nav{display:flex;align-items:center;gap:10px}.zq-lesson__nav .zq-btn{width:auto;padding:6px 14px}.zq-lesson__dots{flex:1;display:flex;justify-content:center;gap:6px}.zq-lesson__dot{width:9px;height:9px;padding:0;border-radius:50%;border:1px solid var(--panel-border);background:transparent;cursor:pointer}.zq-lesson__dot.is-on{background:var(--accent);border-color:var(--accent)}.zq-demo__list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}.zq-demo{padding:8px 14px;border-radius:8px;border:1px solid var(--panel-border);background:#ffffff0a;color:var(--text);font-size:13px;cursor:pointer;transition:all .15s ease}.zq-demo:hover{background:#ffffff1a}.zq-demo.is-on{color:#fff;border-color:var(--accent-soft);background:#ff6a4d33}.zq-demo__reset{width:auto;padding:6px 16px}.zq-hint{position:absolute;bottom:14px;right:20px;z-index:15;font-size:12px;color:var(--text-dim);pointer-events:none}.is-hidden{display:none!important}@media(max-width:720px){.zq-top{padding:10px 12px}.zq-brand__title{font-size:17px}.zq-brand__sub{display:none}.zq-chip{padding:5px 9px;font-size:12px}.zq-modes{top:50px;left:8px;right:8px;transform:none;justify-content:center;gap:2px;padding:3px;border-radius:8px}.zq-mode{padding:6px 13px;font-size:12px;white-space:nowrap}.zq-controls{left:8px;right:8px;bottom:8px;width:auto;padding:10px 12px;display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px}.zq-controls .zq-panel__title{display:none}.zq-controls .zq-row{margin:0;flex:1 1 140px}.zq-toggles{flex-direction:row;margin:0;gap:6px}.zq-toggle{padding:6px 9px;font-size:12px}.zq-controls .zq-btn{width:auto;padding:6px 12px;font-size:12px}.zq-bottom{left:8px;right:8px;bottom:92px;width:auto;transform:none;padding:12px 14px}.zq-lesson__text{font-size:12px}.zq-info{inset:auto 8px 8px;width:auto;max-height:50vh;z-index:30}.zq-info__title{font-size:16px}.zq-info__summary{font-size:12px}#app[data-mode=lesson] .zq-info,.zq-hint{display:none}}@media(max-width:360px){.zq-bottom{bottom:128px}}