:root{color-scheme:light;--ink:#141414;--muted:#626262;--line:#e6e6e6;--header:72px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:var(--header)}body{margin:0;background:#fff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","PingFang TC",sans-serif;-webkit-font-smoothing:antialiased}h1,h2,h3,p,figure,ul,ol{margin:0}ul,ol{list-style:none;padding:0}a{color:inherit;text-decoration:none}a:focus-visible,summary:focus-visible{outline:3px solid #747474;outline-offset:5px}.shell{width:min(1180px,calc(100% - 80px));margin:auto}.skip-link{position:fixed;top:-80px;z-index:100;background:#111;color:#fff;padding:12px}.skip-link:focus{top:4px}.site-header{height:var(--header);position:sticky;top:0;z-index:30;background:#ffffffed;backdrop-filter:blur(14px);border-bottom:1px solid #f0f0f0}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:700;letter-spacing:-.8px}.brand img{border-radius:9px}.main-nav{display:flex;gap:32px;font-size:14px;font-weight:550}.main-nav a:hover{color:#777}.language-menu{position:relative;font-size:13px}.language-menu summary{cursor:pointer;list-style:none;display:flex;gap:14px;align-items:center;min-height:44px}summary::-webkit-details-marker{display:none}.language-menu nav{position:absolute;top:100%;right:0;width:145px;padding:6px;border:1px solid var(--line);background:#fff;border-radius:14px;box-shadow:0 12px 30px #0001}.language-menu nav a{display:block;padding:12px;border-radius:9px}.language-menu nav a:hover,.language-menu nav a[aria-current]{background:#f1f1f1}.screen{min-height:calc(100svh - var(--header));display:flex;flex-direction:column;justify-content:center;padding:48px 0;position:relative}.hero{padding:30px 0 20px}.hero-heading{text-align:center}.product-type{font-size:21px;font-weight:550;margin-bottom:14px}h1{font-size:clamp(44px,5.3vw,80px);font-weight:750;letter-spacing:-3.5px;line-height:1.08}h1 span{color:#777}h2{font-size:clamp(36px,3.8vw,55px);font-weight:680;letter-spacing:-2px;line-height:1.18}h2 span{color:#777}.download-control{position:relative;display:table;margin:24px auto 0;max-width:100%;z-index:5}.download-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 25px;min-height:50px;background:#141414;color:white;border-radius:100px;font-size:14px;font-weight:600;box-shadow:0 6px 14px #0001;transition:background .2s}.download-button:hover{background:#363636}.download-button svg{width:20px;height:20px;fill:currentColor;flex-shrink:0}.qr-popover{display:none;position:absolute;left:calc(100% + 14px);top:0;padding:12px;width:190px;border:1px solid #ddd;border-radius:16px;background:white;color:#444;box-shadow:0 12px 35px #0002;text-align:center}.qr-popover:before{content:"";position:absolute;right:100%;width:16px;height:100%;top:0}.qr-popover img{display:block;width:164px;height:164px;image-rendering:pixelated}.qr-popover p{font-size:11px;margin-top:6px}.hero-stage{display:grid;grid-template-columns:1fr auto 1fr;gap:65px;align-items:center;max-width:900px;margin:28px auto 0;padding:18px 40px;border-radius:32px;background:radial-gradient(ellipse at 50% 90%,#e9e9e9,transparent 60%)}.phone-wrap{height:clamp(340px,46svh,475px);width:auto;aspect-ratio:1170/2532;filter:drop-shadow(0 14px 20px #0002)}.asset-phone{height:100%;width:100%;border:5px solid #fff;outline:1px solid #ddd;border-radius:29px;overflow:hidden;background:#f4f4f4}.screenshot-link{display:block;width:100%;height:100%;line-height:0}.product-screenshot{width:100%;height:100%;object-fit:contain}.hero-note{max-width:230px;color:#4a4a4a;font-size:21px;line-height:1.5;letter-spacing:-.3px}.note-symbol{display:block;font-size:46px;line-height:1.2;color:#9a9a9a;margin-bottom:14px}.note-after{align-self:center}.mini-label{display:block;font-size:13px;color:#777;margin-top:18px}.typing{display:flex;gap:6px;margin-top:22px}.typing i{display:block;width:7px;height:7px;border-radius:100%;background:#bcbcbc}.section-heading{text-align:center;max-width:970px;margin:0 auto 40px}.section-heading>p{font-size:17px;line-height:1.65;color:var(--muted);max-width:620px;margin:20px auto 0}.replies{background:#f7f7f7;border-block:1px solid #eeeeee}.conversation-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:22px}.message-card{padding:30px;border:1px solid #e2e2e2;border-radius:24px;display:flex;flex-direction:column;min-height:255px;background:#eee}.message-card.reply{background:white;border-color:#d7d7d7;box-shadow:0 8px 20px #00000005}.card-label{display:flex;align-items:center;gap:9px;font-size:13px;font-weight:600}.card-label img{border-radius:8px}.avatar{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:#ddd;color:#666}.example-label{margin-left:auto;font-size:10px;font-weight:400;color:#666}.tone{margin-left:auto;border:1px solid #e0e0e0;border-radius:20px;padding:5px 10px;font-size:10px;font-weight:500}.message{font-size:24px;line-height:1.45;letter-spacing:-.5px;margin:25px 0}.card-caption{font-size:12px;line-height:1.6;color:#6a6a6a;margin-top:auto}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:42px;margin-top:40px}.feature-number{font-size:11px;color:#777}.feature-grid h3{font-size:18px;margin:9px 0;font-weight:600}.feature-grid p{font-size:14px;line-height:1.7;color:#626262}.workflow{padding-bottom:0}.chat-apps{display:flex;justify-content:center;gap:65px;margin:0 auto 34px}.chat-apps li{display:flex;flex-direction:column;align-items:center;gap:10px;font-size:11px;color:#626262}.chat-apps img{object-fit:contain;border-radius:12px}.workflow-panel{background:#f6f6f6;border:1px solid #eaeaea;border-radius:24px;padding:30px 32px}.workflow-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}.step-number{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:#fff;border:1px solid #ddd;color:#666;font-size:11px;box-shadow:0 2px 0 #ddd;margin-bottom:16px}.workflow-steps h3{font-size:19px;font-weight:600;margin-bottom:10px}.workflow-steps p{font-size:14px;line-height:1.65;color:#626262}.workflow-bottom{display:flex;justify-content:space-between;gap:24px;border-top:1px solid #dedede;margin-top:26px;padding-top:18px;font-size:11px;color:#6a6a6a;line-height:1.6}.workflow-bottom>p{max-width:580px}.workflow-bottom>span{flex-shrink:0}.final-download{padding-bottom:35px}.site-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:18px 0;font-size:11px;color:#666;margin-top:20px}.site-footer nav{display:flex;gap:26px}.site-footer a{display:inline-flex;align-items:center;min-height:32px}.site-footer a:hover{text-decoration:underline}:lang(zh-Hans) h1,:lang(zh-Hant) h1{letter-spacing:-2px}:lang(zh-Hans) h2,:lang(zh-Hant) h2{letter-spacing:-1px;line-height:1.35}
@media(min-width:761px) and (hover:hover) and (pointer:fine){.download-control:not([data-qr-dismissed]):hover .qr-popover,.download-control:not([data-qr-dismissed]):focus-within .qr-popover{display:block}}
@media(max-width:900px){.shell{width:calc(100% - 48px)}.hero-stage{gap:26px;padding-inline:20px}.hero-note{font-size:18px}.main-nav{gap:20px}.message-card{padding:24px}.message{font-size:21px}.workflow-bottom{flex-direction:column;gap:8px}}
@media(max-width:760px){:root{--header:62px}.shell{width:calc(100% - 36px)}.brand{font-size:19px}.brand img{width:28px;height:28px}.header-inner{gap:12px}.main-nav{display:none}.language-menu{font-size:12px}.screen{padding:34px 0;min-height:calc(100svh - var(--header))}.hero{padding:26px 0 22px}.product-type{font-size:18px;margin-bottom:14px}h1{font-size:clamp(36px,8vw,54px);letter-spacing:-1.8px;line-height:1.13}h1 span{display:block;margin-top:3px}h2{font-size:31px;letter-spacing:-1.1px}h2 span{display:block}.download-control{margin-top:20px}.download-button{padding:13px 22px;font-size:13px;min-height:46px}.hero-stage{display:flex;justify-content:center;padding:14px 18px;margin-top:20px;gap:0}.hero-note{display:none}.phone-wrap{height:clamp(300px,46svh,470px)}.section-heading{margin-bottom:26px}.section-heading>p{font-size:14px;margin-top:14px}.conversation-grid{grid-template-columns:1fr;gap:12px}.message-card{padding:19px 21px;min-height:0;border-radius:18px}.message{font-size:19px;line-height:1.5;margin:17px 0}.card-caption{font-size:11px}.feature-grid{gap:17px;margin-top:25px}.feature-grid h3{font-size:14px;margin:7px 0}.feature-grid p{font-size:12px;line-height:1.6}.feature-number{font-size:10px}.chat-apps{gap:30px;margin-bottom:26px}.chat-apps img{width:38px;height:38px;border-radius:10px}.chat-apps li{font-size:10px;gap:8px}.workflow-panel{padding:22px;border-radius:20px}.workflow-steps{grid-template-columns:1fr;gap:22px}.workflow-steps li{position:relative;padding-left:47px}.step-number{position:absolute;left:0;top:0;margin:0}.workflow-steps h3{font-size:17px;margin-bottom:6px}.workflow-steps p{font-size:12px}.workflow-bottom{margin-top:20px;padding-top:14px;font-size:10px}.final-download{padding-bottom:12px}.workflow{padding-bottom:0}.site-footer{flex-wrap:wrap;gap:5px;padding-block:12px;font-size:10px}.site-footer nav{gap:20px}.qr-popover{display:none!important}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.download-button{transition:none}}
/* Full homepage: section height follows its content, not the viewport. */
.screen{min-height:0;padding:88px 0}.hero{padding:56px 0 64px}.hero-stage{margin-top:36px}.phone-wrap{height:500px}.hero-heading h1 span{margin-left:.1em}.content-section{padding:96px 0}.section-heading{margin-bottom:46px}.feature-panels{display:grid;grid-template-columns:1fr 1fr;gap:26px}.feature-panel{border:1px solid #e6e6e6;border-radius:24px;overflow:hidden}.feature-art{height:220px;background:#f4f3f1;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:30px;gap:10px}.feature-panel:nth-child(2) .feature-art{background:#f0f2f5}.feature-panel:nth-child(3) .feature-art{background:#f2f1f6}.feature-panel:nth-child(4) .feature-art{background:#f0f4f2}.feature-text{padding:27px 30px 30px}.eyebrow{font-size:11px;color:#737373}.feature-text h3,.product-gallery h3{font-size:22px;line-height:1.3;margin:10px 0 12px;font-weight:600}.feature-text p,.product-gallery figcaption p{font-size:15px;color:#626262;line-height:1.7}.context-bubble{background:white;padding:15px 24px;border-radius:18px 18px 18px 3px;box-shadow:0 6px 20px #00000006;font-size:15px}.context-arrow{color:#999;font-size:20px}.context-result{font-size:12px;background:#e8e6e2;border-radius:10px;padding:12px 22px}.tone-stack{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.tone-stack span{padding:16px 20px;border-radius:16px;background:#fff;border:1px solid #e1e3e9;box-shadow:0 5px 0 #dedfe4;font-size:16px}.tone-stack span:nth-child(2){transform:translateY(-15px);background:#262b35;color:#fff;border-color:#262b35}.edit-preview{background:#fff;border:1px solid #e3e0e8;border-radius:16px;padding:24px;width:min(360px,100%);font-size:16px;line-height:1.6}.edit-preview>span{text-decoration:line-through;color:#929292;font-size:13px}.edit-preview p{margin-top:12px}.edit-preview i{display:inline-block;height:16px;width:2px;background:#555;margin-left:3px;vertical-align:middle}.insert-preview{display:flex;width:100%;max-width:365px;align-items:center;gap:12px;padding:14px;border-radius:14px;background:white;border:1px solid #dde3de;font-size:14px}.insert-preview>span{margin-left:auto;background:#273e30;color:#fff;border-radius:9px;padding:5px 10px;font-size:23px}.key-row{display:flex;gap:5px;width:100%;max-width:365px}.key-row i{font-style:normal;background:#fff;border-radius:4px;border:1px solid #dce1dd;flex:1;text-align:center;font-size:10px;padding:9px 0;box-shadow:0 2px 0 #d8ded9}.screenshots{background:#f8f8f8;border-block:1px solid #eee}.product-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.gallery-image{height:430px;background:#eeedeb;border:1px solid #e2e1de;border-radius:22px;overflow:hidden;padding:24px;display:flex;align-items:center;justify-content:center}.gallery-image>a{display:block;height:100%;max-width:100%;line-height:0}.gallery-image img{height:100%;width:auto;max-width:100%;object-fit:contain;border-radius:17px;box-shadow:0 9px 20px #0001}.screenshot-placeholder{max-width:245px;text-align:center}.screenshot-placeholder strong{font-size:14px;color:#4d4d4d}.screenshot-placeholder p{font-size:13px;color:#686868;line-height:1.7;margin-top:12px}.placeholder-drawing{height:180px;border:1px solid #ccc;border-radius:17px;background:#ffffff80;margin:0 auto 25px;width:140px;padding:22px 17px}.placeholder-drawing>span{display:block;height:7px;background:#dcdcd9;border-radius:4px;margin:9px 0}.placeholder-drawing>span:nth-child(2){width:75%}.placeholder-drawing>div{font-size:28px;color:#aaa;margin-top:20px}.product-gallery figcaption{padding:13px 3px}.product-gallery h3{font-size:19px}.product-gallery figcaption p{font-size:14px}.gallery-note{font-size:12px;color:#777;text-align:center;margin-top:24px}.privacy-section{background:#f3f4f2;border-block:1px solid #e8e9e6}.privacy-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px}.privacy-layout h2 span,.faq-layout h2 span{display:block}.privacy-symbol{font-size:48px;line-height:1;display:block;margin-bottom:20px;color:#737c6b}.privacy-intro{font-size:16px;line-height:1.7;color:#626262;margin-top:20px;max-width:400px}.text-link{display:inline-block;font-size:14px;font-weight:550;border-bottom:1px solid #888;padding-bottom:4px;margin-top:26px}.privacy-points article{padding:24px 0;border-bottom:1px solid #dcdfd9}.privacy-points article:first-child{padding-top:5px}.privacy-points article:last-child{border:0;padding-bottom:0}.privacy-points h3{font-size:20px;font-weight:600;margin-bottom:12px}.privacy-points p{font-size:15px;color:#626262;line-height:1.75}.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px}.faq-list details{border-bottom:1px solid #ddd}.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;list-style:none;font-size:16px;line-height:1.5;font-weight:550;padding:22px 0}.faq-list summary>span{font-size:22px;color:#777;flex-shrink:0}.faq-list details[open] summary>span{transform:rotate(45deg)}.faq-list details>p{font-size:14px;line-height:1.85;color:#626262;padding:0 24px 24px 0}.closing{background:#f7f6f3;text-align:center}.closing .shell>img{border-radius:15px;box-shadow:0 5px 16px #0001;margin-bottom:22px}.closing h2{font-size:clamp(34px,4vw,58px)}.closing .shell>p{font-size:18px;color:#626262;margin-top:20px}.closing .download-control{margin-top:28px}.closing .qr-popover{top:auto;bottom:0}.full-footer{padding:54px 0;background:#fff;border-top:1px solid #e8e8e8}.footer-grid{display:grid;grid-template-columns:1.6fr .7fr 1fr;gap:65px}.footer-grid>div>p{max-width:330px;font-size:13px;line-height:1.8;color:#6a6a6a;margin-top:17px}.footer-grid small{display:block;margin-top:30px;color:#777;font-size:11px}.footer-grid nav{display:flex;flex-direction:column;align-items:flex-start;gap:9px;font-size:13px;color:#626262}.footer-grid nav strong{font-weight:600;color:#222;margin-bottom:10px}.footer-grid nav a{min-height:30px;display:flex;align-items:center}.footer-grid nav a:hover{text-decoration:underline}.footer-grid a{overflow-wrap:anywhere}.workflow .section-heading{max-width:850px}
@media(max-width:1000px){.privacy-layout,.faq-layout{gap:40px}.gallery-image{padding:17px;height:370px}.footer-grid{gap:30px}.feature-art{padding:22px}.main-nav{gap:22px}}
@media(max-width:760px){.screen,.content-section{min-height:0;padding:60px 0}.hero{padding:35px 0 40px}.hero-heading h1 span{margin-left:0}.hero-stage{margin-top:25px}.phone-wrap{height:440px}.section-heading{margin-bottom:30px}.feature-panels{grid-template-columns:1fr;gap:18px}.feature-art{height:200px;padding:24px}.feature-text{padding:22px}.feature-text h3{font-size:21px}.feature-text p{font-size:14px}.product-gallery{grid-template-columns:1fr;gap:28px;max-width:430px;margin:auto}.gallery-image{height:420px;padding:25px}.product-gallery figcaption{padding-top:10px}.gallery-note{line-height:1.7}.privacy-layout,.faq-layout{grid-template-columns:1fr;gap:32px}.privacy-points h3{font-size:18px}.privacy-points p{font-size:14px}.faq-list summary{font-size:15px;padding-block:19px}.faq-list details>p{font-size:13px;padding-right:5px}.closing .shell>p{font-size:16px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px 22px}.footer-grid>div{grid-column:1/-1}.footer-grid nav{font-size:12px}.full-footer{padding:35px 0}.footer-grid small{margin-top:16px}.main-nav{display:none}}