:root{--ground:#f6f2e9;--field:#e8dfcf;--paper:#fffdf8;--ink:#3d3027;--muted:#756557;--accent:#536343;--soft:#eee6d8;--brown:#77553f;--light:#f6f2e9;--body:17px;--title:clamp(34px,3.4vw,52px);--section:clamp(26px,2.15vw,34px);--ease:cubic-bezier(.2,.7,.3,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--ground);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:var(--body);line-height:1.75}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:6px}a:hover{color:var(--accent)}button,a{transition:transform .2s var(--ease),color .2s,background .2s}button:active,.button:active{transform:scale(.97)}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:600;letter-spacing:-.04em;line-height:1.2;text-wrap:balance}p{text-wrap:pretty}h1{font-size:var(--title)}h2{font-size:var(--section)}h3{font-size:26px}.skip{position:fixed;top:-100px;left:20px;z-index:30;padding:12px 20px;background:var(--paper)}.skip:focus{top:16px}.split{display:grid;grid-template-columns:47% 53%;align-items:start}.companion{position:sticky;top:0;height:100svh;min-height:660px;background:var(--field);overflow:hidden;display:flex;align-items:center;justify-content:center}.home{position:absolute;top:24px;left:36px;font-size:28px;letter-spacing:-.07em;font-weight:650;z-index:2}.bear{display:block;width:92%;max-width:640px;height:auto;position:absolute;top:46%;left:50%;transform:translate(-50%,-50%);animation:bear-hello 1.1s var(--ease) both}.wordmark{position:absolute;bottom:32px;left:30px;line-height:.85;letter-spacing:-.095em;font-size:clamp(130px,18vw,280px);font-weight:600;transform-origin:left bottom}.companion-line{position:absolute;right:30px;bottom:34px;font-size:16px;writing-mode:vertical-rl;letter-spacing:.12em}.reading{padding:0 clamp(30px,4.4vw,76px)}header{padding-top:28px}nav{display:flex;justify-content:flex-end;gap:26px;font-size:16px}nav a{padding:10px 0}nav a:hover,.back-link:hover{transform:translateY(-2px)}.intro{min-height:700px;height:calc(100svh - 84px);max-height:1000px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:50px 0 100px}.lead{font-size:19px;max-width:30em;margin-top:30px}.button{display:inline-flex;gap:30px;align-items:center;justify-content:center;padding:14px 24px;border-radius:100px;background:var(--accent);color:var(--paper);margin-top:36px;min-height:52px}.button:hover{background:var(--ink);color:var(--paper);transform:translateY(-3px)}.note{color:var(--muted);font-size:16px;margin-top:20px}.reading section+section{margin-top:70px}.reading h2+p{margin-top:22px}.experience,.progress,.questions{padding-top:40px}.examples{display:flex;gap:8px;flex-wrap:wrap;margin-top:28px}.examples button{cursor:pointer;border:0;background:var(--soft);padding:8px 21px;min-height:44px;border-radius:100px}.examples button:hover{background:var(--field);transform:translateY(-2px)}.examples button[aria-pressed=true]{background:var(--ink);color:var(--paper)}.conversation{margin-top:22px;background:var(--paper);padding:26px;border-radius:24px}.demo-label,.demo-note{font-size:14px;color:var(--muted)}#example-content{display:flow-root;min-height:255px;padding-top:24px}.message{background:var(--brown);color:var(--paper);padding:12px 18px;border-radius:20px 20px 4px 20px;float:right;max-width:94%}.record{clear:both;display:flex;align-items:center;gap:16px;padding:24px 0 16px}.record img{width:90px;height:90px;object-fit:contain;flex-shrink:0}.record p:first-child{font-weight:600;font-size:18px}.record p+p{font-size:16px;color:var(--muted);margin-top:2px}.reply{padding:14px 16px;background:var(--soft);border-radius:4px 20px 20px 20px;font-size:16px}.demo-note{margin-top:24px;line-height:1.6}.daily{background:var(--soft);padding:26px;margin-top:28px;border-radius:24px}.daily-heading{display:flex;justify-content:space-between;gap:20px;font-size:14px;color:var(--muted)}.daily-row{display:flex;gap:18px;align-items:center;margin-top:28px}.daily-row img{width:64px;height:64px;object-fit:contain}.daily-row strong{font-size:18px;font-weight:600}.daily-row p{font-size:16px;color:var(--muted)}.check{margin-left:auto;color:var(--accent);font-size:22px}.daily-close{font-size:17px;margin-top:28px}.questions{padding-bottom:100px}.questions p{margin-top:28px}.questions strong{font-weight:600}.download{background:var(--accent);color:var(--light);display:grid;grid-template-columns:47% 53%;gap:0;padding:80px 0}.download-title{padding:0 60px;display:flex;flex-direction:column;align-items:flex-start;gap:32px}.download-title img{border-radius:20px}.download-title h2{font-size:clamp(30px,3.6vw,52px)}.download-copy{padding:15px clamp(30px,4.4vw,76px) 0}.download-copy p{margin-top:24px;max-width:33em}.download-note{font-size:16px}.back-link{display:inline-block;margin-top:32px;text-decoration:underline;text-underline-offset:5px}.back-link:hover{color:var(--light)}footer{display:flex;align-items:center;gap:36px;padding:36px;color:var(--muted);font-size:14px}footer a{font-size:28px;font-weight:650;letter-spacing:-.07em;color:var(--ink)}footer p:last-child{margin-left:auto}.reveal{animation:soft-in .7s var(--ease) both;animation-timeline:view();animation-range:entry 0% entry 22%}@keyframes soft-in{from{opacity:.45;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@keyframes bear-hello{from{opacity:0;transform:translate(-50%,-47%) rotate(-3deg)}to{opacity:1;transform:translate(-50%,-50%) rotate(0)}}@supports(animation-timeline:scroll()){.wordmark{animation:word-settle linear both;animation-timeline:scroll();animation-range:0 650px}@keyframes word-settle{to{transform:scale(.94)}}}
@media(min-width:1600px){.reading{padding-right:100px;padding-left:90px}.download-copy{padding-left:90px}}
@media(max-width:1000px) and (min-width:701px){.split,.download{grid-template-columns:42% 58%}.reading{padding:0 28px}nav{gap:18px;font-size:14px}.bear{width:115%}.companion{min-height:600px}.wordmark{font-size:18vw;left:20px;bottom:60px}.companion-line{writing-mode:horizontal-tb;left:24px;bottom:20px;font-size:14px}.intro{min-height:650px}.conversation,.daily{padding:20px}.download-title{padding:0 28px}.download-copy{padding:10px 28px 0}}
@media(max-width:700px){html{scroll-padding-top:20px}.split{display:flex;flex-direction:column}.companion{position:relative;order:0;width:100%;height:440px;min-height:0}.home{left:24px;top:18px;font-size:26px}.bear{width:350px;max-width:86%;top:48%}.wordmark{font-size:112px;left:20px;bottom:24px}.companion-line{right:22px;bottom:28px;writing-mode:vertical-rl;font-size:14px}.reading{width:100%;padding:0 24px}header{padding-top:12px}nav{justify-content:space-between;gap:14px;font-size:14px}.intro{height:auto;max-height:none;min-height:0;padding:56px 0 24px}h1{font-size:38px}.lead{font-size:17px;margin-top:24px}.button{margin-top:28px;font-size:16px}.note{font-size:14px}.reading section+section{margin-top:70px}.experience,.progress,.questions{padding-top:10px}h2{font-size:27px}.examples{gap:8px}.examples button{padding:8px 18px;font-size:16px}.conversation,.daily{padding:20px}.record{gap:8px}.record img{width:74px;height:74px}.record p:first-child{font-size:17px}.record p+p{font-size:14px}.message,.reply{font-size:16px}#example-content{min-height:255px}.demo-note{font-size:13px}.daily-row{gap:12px}.daily-row strong{font-size:16px}.daily-row p{font-size:14px}.daily-row img{width:54px;height:54px}.daily-heading{font-size:13px}.questions{padding-bottom:70px}.questions p{margin-top:26px}.download{display:block;padding:48px 24px}.download-title{padding:0;gap:24px}.download-title img{width:72px;height:72px;border-radius:16px}.download-title h2{font-size:36px}.download-copy{padding:40px 0 0}.download-copy h3{font-size:24px}.download-copy p{margin-top:18px}.download-note{font-size:14px}footer{padding:28px 24px;gap:12px;flex-wrap:wrap}footer a{width:100%;font-size:26px}footer p{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.bear{opacity:1;transform:translate(-50%,-50%)}.reveal{opacity:1;transform:none}}

.check::before{content:"";display:block;width:9px;height:16px;border:solid var(--accent);border-width:0 2px 2px 0;transform:rotate(45deg);margin-right:5px}
.recorder{display:block;width:100%;height:auto;max-width:460px;margin:0 auto 36px}.bear{width:84%;top:38%;max-height:calc(100svh - 330px);object-fit:contain}
@media(max-width:1000px) and (min-width:701px){.bear{width:105%;top:40%;max-height:calc(100svh - 240px)}}
@media(max-width:700px){.companion{height:380px}.bear{width:280px;top:43%;max-height:none}.wordmark{font-size:104px;bottom:20px}.companion-line{bottom:24px}.intro{padding-top:40px}.recorder{max-width:340px;margin-bottom:30px}}
.footer-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px 28px;margin-left:auto}footer .icp{font-size:14px;font-weight:400;letter-spacing:normal;width:auto;text-decoration:underline;text-underline-offset:4px}
@media(max-width:700px){.footer-meta{width:100%;margin-left:0}}