.nav{position:sticky;top:0;z-index:5;background:#fafbf7d9;backdrop-filter:blur(22px);border-bottom:1px solid #d9e0d055}.language{margin-left:auto;color:#5e7152;display:flex;align-items:center;gap:8px}select{font:inherit;color:inherit;background:#ffffff9c;border:1px solid #d7dfcc;border-radius:8px;padding:9px 12px;max-width:190px}.hero h1{max-width:1000px;margin:25px auto;font-size:clamp(36px,5.2vw,66px);letter-spacing:-2px}.hero .lead{max-width:650px;margin:22px auto}.language-path{display:flex;align-items:center;justify-content:center;gap:24px;margin:40px auto 0;font-size:12px;color:#647658;flex-wrap:wrap}.language-path label{display:flex;align-items:center;gap:10px}.flow-line{font-size:32px;color:#96a983}.scene{margin-top:24px;padding:55px 0;min-height:380px;isolation:isolate}.glow{position:absolute;width:380px;height:350px;border-radius:50%;filter:blur(45px);z-index:-1;opacity:.6}.glow-one{background:#bacf91;left:5%;top:15%;animation:drift 10s ease-in-out 2 alternate}.glow-two{background:#efe0b3;right:2%;top:-25%;animation:drift 12s ease-in-out 2 alternate-reverse}.chat{transition:box-shadow .3s}.chat:hover{box-shadow:0 32px 60px #48512a28}.floating{top:120px;max-width:90%}.composer{margin-top:20px}.availability{font-size:12px;color:#815d2d;background:#f4ecdd;border:1px solid #e7d9ba;border-radius:8px;padding:12px;max-width:680px;margin:16px auto}.reveal{opacity:1;transform:none;transition:opacity .75s ease,transform .75s ease}.reveal:not(.visible){opacity:.65;transform:translateY(15px)}.privacy{margin-top:75px}.wave{display:flex;justify-content:center;align-items:center;gap:6px;min-height:190px;background:linear-gradient(135deg,#eef2e8,#e1e9d5);border:1px solid #dce4d2;border-radius:20px}.wave i{width:5px;border-radius:8px;background:#809767;animation:voice 1.7s ease-in-out 3;animation-delay:calc(var(--i)*-.08s)}.pricing-note{font-size:12px;line-height:1.9;color:#76816a;max-width:850px;margin:22px auto}.faq ol{font-size:12px;line-height:1.9;color:#75826a;padding-left:20px}.faq li{padding:6px 0}.button:active{transform:translateY(1px)}@keyframes drift{to{transform:translate(45px,25px) scale(1.1)}}@keyframes voice{50%{transform:scaleY(.45)}}@media(max-width:700px){.nav .small{display:none}.nav{gap:10px}.brand{font-size:18px}.language{font-size:12px}.hero h1{letter-spacing:-1px}.scene{padding:35px 0}.language-path{gap:12px}.floating{font-size:9px;right:20px}.privacy{margin-top:40px}.wave{gap:4px}.wave i{width:4px}.nav select{max-width:140px}.actions{flex-wrap:wrap}.demo-control button{max-width:65%}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal:not(.visible){opacity:1;transform:none}}
.hero{padding-top:28px}.hero h1{margin:16px auto;font-size:clamp(34px,4.5vw,58px);line-height:1.18}.hero .lead{margin:14px auto;max-width:760px}.hero .actions{margin-top:20px}.language-path{margin:20px auto 0}.scene{margin-top:18px;padding:28px 0;min-height:320px}.scene .floating{position:relative;top:auto;right:auto;left:auto;transform:none;max-width:calc(100% - 28px);width:fit-content;margin:0 14px 10px auto;font-size:11px}.scene .composer{margin-top:0}.chat-content{padding:16px 22px}.brand{font-size:20px;white-space:nowrap}.brand small{font-size:12px;font-weight:500;color:#69765e}.nav{height:76px}.nav>.textlink{white-space:nowrap}.hero .micro{margin:10px auto}.nav .language{min-width:0}@media(max-width:700px){.nav{flex-wrap:wrap;height:auto;min-height:76px;padding-top:14px;padding-bottom:14px;gap:12px}.nav .brand{font-size:17px}.nav .brand .mark{width:28px;height:28px}.nav .beta{display:none}.nav .language{margin-left:auto}.nav .language select{max-width:110px;padding:7px}.nav>.textlink{font-size:11px}.hero{padding-top:22px}.hero h1{font-size:34px;letter-spacing:-1px}.hero .lead{font-size:14px}.scene{min-height:0;padding:22px 0}.scene .floating{font-size:10px}.language-path{margin-top:18px}}
@media(min-width:1000px){html[lang="zh-CN"] .hero h1 br{display:none}html[lang="zh-CN"] .hero h1 .accent{margin-left:.15em}html[lang="zh-CN"] .hero h1{font-size:52px;line-height:1.25;margin:20px auto}.hero{padding-top:22px}}