:root{--product-bg:#f7f7f5;--product-ink:#16161a;--product-muted:#6b6b73;--product-line:#16161a24;--product-card-bg:#ffffffdb;--product-radius:14px;--product-ui-ms:.42s}*{box-sizing:border-box}html,body.product{background:var(--product-bg);min-height:100%;color:var(--product-ink);-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;overflow-x:hidden}.product__skip{position:absolute;left:-9999px}.product__skip:focus{z-index:30;border:1px solid var(--product-line);background:#fff;border-radius:8px;padding:8px 12px;top:12px;left:12px}.product__head{max-width:640px;margin:0 auto;padding:40px 24px 0}.product__eyebrow{letter-spacing:.18em;text-transform:uppercase;color:var(--product-muted);margin:0 0 8px;font-size:12px}.product__brand{color:inherit;text-decoration:none}.product__brand:hover,.product__brand:focus-visible{text-underline-offset:3px;text-decoration:underline}.product__title{letter-spacing:.01em;margin:0 0 10px;font-size:30px;font-weight:600}.product__lede{color:var(--product-muted);margin:0;font-size:15px;line-height:1.7}.product__stage{max-width:1180px;height:min(74vh,720px);min-height:420px;margin:8px auto 0;position:relative}.product__canvas{touch-action:none;cursor:grab;opacity:0;width:100%;height:100%;transition:opacity .6s;display:block}.product__canvas.is-ready{opacity:1}.product__canvas:active{cursor:grabbing}.chips{pointer-events:none;position:absolute;inset:0}.chip{font:inherit;white-space:nowrap;color:var(--product-ink);border:1px solid var(--product-line);cursor:pointer;pointer-events:auto;will-change:transform;background:#ffffffe6;border-radius:999px;align-items:center;gap:8px;padding:7px 13px 7px 10px;font-size:13px;line-height:1;transition:opacity .26s,border-color .26s,box-shadow .26s;display:inline-flex;position:absolute;top:0;left:0;box-shadow:0 6px 18px #16161a14}.chip__dot{background:var(--product-ink);opacity:.5;border-radius:50%;width:7px;height:7px;transition:opacity .26s,transform .26s}.chip:hover,.chip:focus-visible{border-color:#16161a66;outline:none;box-shadow:0 8px 22px #16161a24}.chip.is-active .chip__dot{opacity:1;transform:scale(1.25)}.chip.is-active{border-color:#16161a8c}.chip.is-hidden{opacity:0;pointer-events:none}.card{background:var(--product-card-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--product-line);border-radius:var(--product-radius);opacity:0;pointer-events:none;visibility:hidden;width:min(340px,100% - 48px);transition:opacity var(--product-ui-ms) ease, transform var(--product-ui-ms) ease, visibility 0s linear var(--product-ui-ms);padding:18px 20px 20px;position:absolute;bottom:24px;left:24px;transform:translateY(14px);box-shadow:0 12px 34px #16161a1a}.card.is-open{opacity:1;pointer-events:auto;visibility:visible;transition:opacity var(--product-ui-ms) ease, transform var(--product-ui-ms) ease, visibility 0s linear 0s;transform:translateY(0)}.card__close{width:28px;height:28px;color:var(--product-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;font-size:18px;line-height:1;position:absolute;top:8px;right:10px}.card__close:hover{color:var(--product-ink);background:#16161a0f}.card__title{margin:0 0 6px;font-size:16px;font-weight:600}.card__body{color:var(--product-muted);margin:0;font-size:13.5px;line-height:1.75}.loading{background:var(--product-bg);visibility:visible;transition:opacity var(--product-ui-ms) ease, visibility 0s linear 0s;place-items:center;display:grid;position:absolute;inset:0}.loading.is-done{opacity:0;pointer-events:none;visibility:hidden;transition:opacity var(--product-ui-ms) ease, visibility 0s linear var(--product-ui-ms)}.loading[hidden]{display:none}.loading__text{letter-spacing:.06em;color:var(--product-muted);margin:0;font-size:13px}.product__error{color:#7a1f1f;border-radius:var(--product-radius);background:#fff;border:1px solid #7a1f1f40;max-width:min(460px,100% - 48px);margin:0;padding:16px 18px;font-size:13.5px;line-height:1.7;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.features{max-width:640px;margin:0 auto;padding:8px 24px 72px}.features__title{margin:0 0 8px;font-size:18px;font-weight:600}.features__hint{color:var(--product-muted);margin:0;font-size:14px;line-height:1.7}@media (prefers-reduced-motion:reduce){.product__canvas,.chip,.card,.loading{transition-duration:.01ms}}@media (max-width:720px){.product__title{font-size:24px}.product__stage{height:min(64vh,520px);min-height:320px}.card{width:auto;bottom:12px;left:12px;right:12px}}@media (max-width:380px){.chip{gap:6px;padding:6px 10px 6px 8px;font-size:12px}.chip__dot{width:6px;height:6px}}