:root{color-scheme:light;--cloud:#f3f6f8;--paper:#fff;--ink:#2c414d;--slate:#536b79;--blue:#426b82;--mist:#dfeaf0;--line:#d5dfe5;--orange:#e36f48;--focus:#285c78;font-family:"Avenir Next","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--cloud);font-synthesis:none;-webkit-text-size-adjust:100%;text-rendering:optimizeLegibility}

*{box-sizing:border-box}
body{margin:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
button,a{-webkit-tap-highlight-color:transparent}
button{touch-action:manipulation}
img{display:block;max-width:100%;height:auto}
svg{display:block;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
p,h1,h2,h3{margin:0}
p{line-height:1.8}
h1,h2,h3{font-weight:600}
h2{font-size:clamp(28px,3.2vw,42px);line-height:1.42;letter-spacing:-.035em}
h3{font-size:21px;line-height:1.5;letter-spacing:-.02em}
a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--focus);outline-offset:4px}
button:focus-visible{outline-offset:2px}
a,button,summary{border-radius:8px}
[hidden]{display:none!important}
.shell{width:min(1200px,calc(100% - 96px));margin-inline:auto}
section[id],main{scroll-margin-top:24px}
.skip-link{position:absolute;left:24px;top:-80px;z-index:10;padding:14px 20px;background:var(--ink);color:#fff}
.skip-link:focus{top:12px}
.site-header{display:flex;align-items:center;gap:32px;min-height:112px}
.brand{display:inline-flex;align-items:center;gap:12px;font-weight:650;font-size:28px;letter-spacing:-.04em;min-height:44px;flex-shrink:0}
.brand img{border-radius:12px}
.main-nav{display:flex;align-items:center;justify-content:center;gap:32px;margin-left:auto}
.main-nav a,.site-footer nav a{display:inline-flex;align-items:center;min-height:44px;font-size:15px;font-weight:500}
.main-nav a:hover,.site-footer nav a:hover,.text-link:hover{color:var(--blue);text-decoration:underline;text-underline-offset:6px}
.language-switch{display:flex;align-items:center;border-left:1px solid var(--line);padding-left:22px;gap:2px}
.language-switch button{min-width:44px;border:0;background:transparent;min-height:44px;padding:8px 10px;font-size:13px;color:var(--slate)}
.language-switch button[aria-pressed=true]{background:var(--mist);color:var(--ink);font-weight:600}
.hero{display:grid;grid-template-columns:1.06fr 1fr;gap:clamp(40px,6vw,88px);align-items:center;padding-top:56px;padding-bottom:100px}
.hero-copy{padding-bottom:10px}
.hero-intro{font-size:16px;letter-spacing:.02em;color:var(--slate);margin-bottom:25px}
h1{font-size:clamp(44px,5.3vw,72px);line-height:1.26;letter-spacing:-.055em;font-weight:600}
h1 span{display:block}
.hero-description{font-size:18px;line-height:1.9;color:var(--slate);max-width:30em;margin-top:27px}
.hero-actions{display:flex;align-items:center;gap:25px;flex-wrap:wrap;margin-top:31px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:13px 22px;font-size:16px;font-weight:600;border-radius:14px;line-height:1.6;text-align:center}
.primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px #426b8212}
.primary:hover{background:#365b70}
.text-link{display:inline-flex;align-items:center;min-height:44px;font-size:15px;color:var(--blue);font-weight:500}
.hero-note{font-size:13px;color:var(--slate);margin-top:22px}
.task-demo{background:var(--paper);border-radius:28px;padding:25px;box-shadow:0 20px 50px #354f6210;border:1px solid #e2e9ed;min-width:0;position:relative}
.demo-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}
.demo-brand{display:flex;align-items:center;gap:9px;font-size:18px;font-weight:600;letter-spacing:-.03em}
.demo-brand img{border-radius:8px}
.demo-disclosure{font-size:12px;color:var(--slate)}
.scenario-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));background:var(--cloud);border-radius:12px;padding:4px;gap:3px;margin-bottom:24px}
.scenario-tabs button{border:0;background:transparent;min-height:44px;padding:8px 5px;font-size:14px;color:var(--slate);line-height:1.3}
.scenario-tabs button[aria-selected=true]{background:#fff;color:var(--ink);box-shadow:0 2px 8px #344e5c12;font-weight:600}
.scenario-tabs button:hover{color:var(--ink)}
.scenario-panel{border-radius:14px;min-width:0}
.conversation-example{display:flex;flex-direction:column;align-items:flex-start;gap:17px;min-height:194px}
.message{font-size:16px;line-height:1.85;padding:15px 18px;max-width:92%}
.user-message{background:var(--mist);border-radius:20px 20px 5px 20px;align-self:flex-end}
.assistant-message{background:#f5f7f8;border-radius:5px 20px 20px 20px}
.task-outline{margin-top:23px;padding-top:19px;border-top:1px solid var(--line)}
.outline-heading{font-size:13px;font-weight:500;color:var(--slate)}
.task-facts{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:15px 0 18px}
.task-facts div{min-width:0}
.task-facts dt{font-size:12px;color:var(--slate);margin-bottom:4px;line-height:1.6}
.task-facts dd{font-size:16px;font-weight:600;line-height:1.7;margin:0;overflow-wrap:anywhere}
.task-next{font-size:13px;line-height:1.75;display:flex;gap:8px;align-items:flex-start}
.task-next svg{width:17px;height:17px;margin-top:3px;color:var(--blue);stroke-width:2}
.demo-footnote{font-size:12px;color:var(--slate);line-height:1.7;margin-top:19px}
.assistant-section{padding:18px 0 92px}
.section-intro{display:flex;gap:64px;align-items:flex-start;justify-content:space-between;margin-bottom:54px}
.section-intro h2{max-width:15em;flex:1}
.section-intro>p{max-width:24em;font-size:16px;color:var(--slate);padding-top:7px;flex:.8}
.task-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;padding:0;margin:0;list-style:none}
.task-steps li{position:relative;min-width:0}
.task-steps li:not(:last-child):before{content:"";position:absolute;top:22px;left:64px;width:calc(100% - 64px);border-top:1px solid #becdd6}
.step-number{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid #becdd6;border-radius:50%;color:var(--blue);font-size:17px;font-weight:500;margin-bottom:23px}
.task-steps li:first-child .step-number{border-color:var(--orange);color:#a44b2e}
.task-steps h3{font-size:18px;margin-bottom:12px}
.task-steps p{font-size:14px;color:var(--slate);line-height:1.9}
.travel-note{display:flex;align-items:center;gap:21px;padding:24px 28px;background:#e9eff3;border-radius:16px;margin-top:44px}
.travel-note svg{width:34px;height:34px;color:var(--blue)}
.travel-note p{font-size:14px;color:var(--slate);line-height:1.8}
.travel-note strong{font-weight:600;color:var(--ink);display:block;margin-bottom:3px}
.connection-section{background:#e9eff3;padding:82px 0 78px}
.connection-layout{display:grid;grid-template-columns:1fr 1.08fr;gap:96px}
.connection-intro h2 span{display:block}
.connection-intro>p{color:var(--slate);font-size:16px;max-width:28em;margin-top:20px}
.connection-illustration{height:124px;max-width:340px;display:flex;align-items:center;gap:27px;margin-top:31px}
.voice-glyph{display:flex;align-items:center;gap:5px;transform:rotate(-5deg);padding:18px 24px;background:var(--paper);border-radius:35px 35px 9px 35px}
.voice-glyph i{display:block;width:4px;height:13px;background:#648396;border-radius:5px}
.voice-glyph i:nth-child(3n){height:32px}
.voice-glyph i:nth-child(3n+2){height:24px}
.voice-glyph i:nth-child(7){height:42px}
.chat-glyph{width:95px;height:95px;color:var(--blue);stroke-width:4;transform:rotate(7deg)}
.connection-features article{display:flex;gap:22px;padding:28px 0;border-bottom:1px solid #ccdae2}
.connection-features article:first-child{padding-top:0}
.connection-features article:last-child{padding-bottom:0;border:0}
.feature-icon{padding-top:2px;flex-shrink:0;color:var(--blue)}
.feature-icon svg{height:28px;width:28px}
.connection-features h3{font-size:21px;margin-bottom:9px}
.connection-features p{font-size:15px;color:var(--slate);line-height:1.9;max-width:35em}
.privacy-section{padding-top:86px;padding-bottom:80px}
.privacy-heading{display:flex;align-items:center;gap:20px;margin-bottom:35px}
.privacy-heading>svg{width:38px;height:42px;color:var(--blue)}
.privacy-heading h2{font-size:30px}
.privacy-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:50px;margin-bottom:22px}
.privacy-points h3{font-size:17px;margin-bottom:10px}
.privacy-points p{font-size:14px;line-height:1.85;color:var(--slate)}
.privacy-section>.text-link{font-size:14px}
.download-section{background:var(--paper);border:1px solid #e2e9ed;border-radius:24px;display:grid;grid-template-columns:1fr 230px;gap:30px 65px;padding:40px 44px}
.download-main{display:flex;align-items:flex-start;gap:24px}
.download-main>img{border-radius:18px;flex-shrink:0}
.download-main h2{font-size:29px;margin-bottom:10px}
.download-main p{font-size:14px;max-width:35em;color:var(--slate);line-height:1.85}
.platform-status{display:flex;flex-direction:column;gap:10px;align-self:center}
.platform-status>div{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 0;min-height:44px}
.platform-status>div+div{border-top:1px solid var(--line)}
.platform-status>div>span:first-child{font-size:17px;font-weight:600}
.platform-status>div>span:last-child{font-size:12px;color:var(--slate)}
.legacy-note{grid-column:1/-1;border-top:1px solid var(--line);padding-top:15px;color:var(--slate);font-size:13px}
.legacy-note summary{cursor:pointer;padding:11px 5px;min-height:44px}
.legacy-note p{max-width:65em;margin:10px 5px 5px;line-height:1.85}
.legacy-note a{display:inline-flex;align-items:center;min-height:44px;margin-left:5px;color:var(--blue);text-decoration:underline;text-underline-offset:4px}
.site-footer{padding-top:52px;padding-bottom:28px}
.footer-top{display:flex;align-items:center;justify-content:space-between;gap:24px}
.footer-top .brand{font-size:24px;gap:9px}
.footer-top .brand img{border-radius:9px}
.site-footer nav{display:flex;gap:28px;flex-wrap:wrap}
.site-footer nav a{font-size:13px;color:var(--slate)}
.footer-bottom{display:flex;gap:20px;flex-wrap:wrap;justify-content:space-between;padding-top:24px;margin-top:24px;border-top:1px solid var(--line);font-size:11px;color:var(--slate);line-height:1.8;overflow-wrap:anywhere}

html[lang=en] h1{font-size:clamp(44px,4.7vw,64px);letter-spacing:-.05em;line-height:1.13}
html[lang=en] .hero-intro{letter-spacing:0}
html[lang=en] .message{font-size:15px;line-height:1.75}
html[lang=en] .conversation-example{min-height:216px}
html[lang=en] .task-steps h3{font-size:19px}
html[lang=en] .main-nav{gap:24px}

@media(min-width:1400px){.hero{gap:96px}
}

@media(max-width:1080px){.shell{width:calc(100% - 64px)}
.hero{gap:38px;padding-top:40px;padding-bottom:76px}
.site-header{gap:20px}
.main-nav{gap:22px}
.language-switch{padding-left:14px}
.hero-description{font-size:16px}
.hero-actions{gap:13px;align-items:flex-start;flex-direction:column}
.hero-note{margin-top:14px}
.task-demo{padding:22px}
.message{font-size:15px;padding:13px 15px}
.section-intro{gap:40px}
.task-steps{gap:23px}
.connection-layout{gap:52px}
.download-section{gap:28px 35px;padding:34px}
.download-main{gap:20px}
.download-main>img{width:62px;height:62px}
.privacy-points{gap:32px}
}

@media(max-width:820px){.site-header{min-height:96px;flex-wrap:wrap;gap:0 20px;padding-top:16px;padding-bottom:12px}
.brand{font-size:26px}
.brand img{width:38px;height:38px}
.language-switch{margin-left:auto;border:0;padding-left:0}
.main-nav{order:3;width:100%;margin:9px 0 0;justify-content:flex-start;gap:28px}
.main-nav a{font-size:14px}
.hero{padding-top:36px;gap:38px;grid-template-columns:1fr}
.hero-copy{max-width:620px;padding-bottom:0}
.hero-intro{margin-bottom:17px}
h1{font-size:55px}
.hero-description{max-width:34em;font-size:17px;margin-top:22px}
.hero-actions{flex-direction:row;align-items:center;gap:24px;margin-top:24px}
.hero-note{margin-top:18px}
.task-demo{width:100%;max-width:610px;justify-self:center;padding:27px}
.conversation-example{min-height:155px}
.message{max-width:88%;font-size:16px}
.task-facts{margin-top:14px}
.section-intro{display:block;margin-bottom:35px}
.section-intro>p{max-width:34em;margin-top:16px;padding-top:0}
.section-intro h2{max-width:18em}
.task-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:35px 32px}
.task-steps li:nth-child(2):before{display:none}
.assistant-section{padding-bottom:65px}
.connection-section{padding:60px 0}
.connection-layout{gap:40px;grid-template-columns:1fr 1.15fr}
.connection-illustration{gap:18px;transform:scale(.86);transform-origin:left top;margin-top:28px}
.voice-glyph{padding:14px 18px;gap:4px}
.chat-glyph{width:73px}
.connection-features article{gap:15px}
.connection-features h3{font-size:19px}
.privacy-section{padding-top:60px;padding-bottom:55px}
.privacy-points{gap:28px}
.privacy-heading h2{font-size:27px}
.download-section{grid-template-columns:1fr;padding:30px;gap:24px}
.platform-status{flex-direction:row;gap:30px;justify-content:space-between;max-width:450px;margin-left:82px;width:calc(100% - 82px)}
.platform-status>div{flex:1}
.platform-status>div+div{border-top:0}
.download-main h2{font-size:27px}
.legacy-note{padding-top:10px}
.footer-top{align-items:flex-start}
html[lang=en] h1{font-size:57px}
html[lang=en] .conversation-example{min-height:170px}
}

@media(max-width:600px){.shell{width:calc(100% - 40px)}
.site-header{padding-top:13px;padding-bottom:0}
.main-nav{gap:24px;margin-top:9px}
.main-nav a{font-size:13px}
.language-switch button{font-size:12px;padding:8px 9px}
.hero{padding-top:31px;padding-bottom:61px;gap:32px}
.hero-intro{font-size:14px;margin-bottom:17px}
h1{font-size:clamp(37px,10.7vw,48px);line-height:1.3;letter-spacing:-.05em}
.hero-description{font-size:16px;line-height:1.85;margin-top:20px}
.hero-actions{gap:14px 21px;margin-top:24px}
.button{font-size:14px;min-height:50px;padding:12px 17px}
.hero-actions .text-link{font-size:13px}
.hero-note{font-size:12px;margin-top:16px}
.task-demo{padding:20px;border-radius:23px}
.demo-heading{margin-bottom:17px}
.demo-disclosure{font-size:11px}
.scenario-tabs{margin-bottom:19px}
.scenario-tabs button{font-size:13px}
.message{font-size:15px;padding:12px 15px;max-width:94%;line-height:1.85}
.conversation-example{gap:14px;min-height:185px}
.task-outline{margin-top:19px;padding-top:17px}
.task-facts{gap:15px;margin:13px 0 15px}
.task-facts dd{font-size:15px}
.task-next{font-size:12px}
.demo-footnote{font-size:12px;margin-top:17px;line-height:1.8}
.section-intro h2{font-size:28px;max-width:12em;line-height:1.45}
.section-intro>p{font-size:15px;margin-top:16px;line-height:1.85}
.task-steps{gap:31px 22px}
.task-steps li:before{top:19px;left:53px;width:calc(100% - 53px)}
.step-number{width:38px;height:38px;font-size:15px;margin-bottom:17px}
.task-steps h3{font-size:16px;line-height:1.6;margin-bottom:8px}
.task-steps p{font-size:13px;line-height:1.85}
.travel-note{padding:21px 20px;gap:15px;align-items:flex-start;margin-top:33px}
.travel-note svg{width:27px;height:27px;margin-top:4px}
.travel-note p{font-size:13px;line-height:1.85}
.travel-note strong{margin-bottom:6px}
.assistant-section{padding-top:0;padding-bottom:49px}
.connection-section{padding:46px 0}
.connection-layout{display:block}
.connection-intro h2{font-size:30px}
.connection-intro>p{font-size:15px;margin-top:17px}
.connection-illustration{display:none}
.connection-features{margin-top:30px}
.connection-features article{gap:17px;padding:24px 0}
.connection-features article:first-child{padding-top:0}
.connection-features h3{font-size:19px}
.connection-features p{font-size:14px;line-height:1.85}
.feature-icon svg{width:26px;height:26px}
.privacy-section{padding-top:46px;padding-bottom:42px}
.privacy-heading{gap:15px;margin-bottom:27px;align-items:flex-start}
.privacy-heading>svg{width:31px;height:36px;margin-top:3px}
.privacy-heading h2{font-size:26px;line-height:1.5;max-width:12em}
.privacy-points{grid-template-columns:1fr;gap:23px;margin-bottom:16px}
.privacy-points h3{font-size:17px;margin-bottom:7px}
.privacy-points p{font-size:14px;max-width:34em}
.privacy-section>.text-link{font-size:13px}
.download-section{padding:24px 20px;border-radius:20px;gap:20px}
.download-main{gap:16px;display:block}
.download-main>img{width:56px;height:56px;margin-bottom:20px;border-radius:15px}
.download-main h2{font-size:26px;line-height:1.5;margin-bottom:12px}
.download-main p{font-size:14px}
.platform-status{margin-left:0;width:100%;gap:22px;max-width:none}
.platform-status>div{flex-wrap:wrap;gap:5px 12px}
.platform-status>div>span:first-child{font-size:16px}
.platform-status>div>span:last-child{font-size:11px}
.legacy-note{font-size:12px;padding-top:10px}
.site-footer{padding-top:35px;padding-bottom:24px}
.footer-top{display:block}
.site-footer nav{margin-top:17px;gap:22px}
.site-footer nav a{font-size:12px}
.footer-bottom{display:block;padding-top:17px;margin-top:13px;font-size:10px}
.footer-bottom span{display:block}
.footer-bottom span+span{margin-top:7px}
html[lang=en] h1{font-size:clamp(39px,10.4vw,48px);line-height:1.13}
html[lang=en] .hero-intro{font-size:13px}
html[lang=en] .hero-actions{gap:12px 16px}
html[lang=en] .button{font-size:14px}
html[lang=en] .hero-actions .text-link{font-size:13px}
html[lang=en] .main-nav{gap:22px}
html[lang=en] .main-nav a{font-size:12px}
html[lang=en] .scenario-tabs button{font-size:12px}
html[lang=en] .conversation-example{min-height:224px}
html[lang=en] .message{font-size:14px;line-height:1.75}
html[lang=en] .task-steps h3{font-size:17px}
html[lang=en] .section-intro h2{font-size:29px;max-width:14em}
html[lang=en] .connection-intro h2{font-size:31px}
}

@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}
}

@media(forced-colors:active){.scenario-tabs button[aria-selected=true],.language-switch button[aria-pressed=true]{outline:2px solid Highlight;outline-offset:-3px}
.user-message,.assistant-message,.task-demo,.travel-note{border:1px solid CanvasText}
.primary{border:1px solid ButtonText}
.step-number{color:CanvasText}
.task-steps li:first-child .step-number{color:CanvasText;border-color:CanvasText}
}


html[lang="ja"] h1,html[lang="ko"] h1{letter-spacing:-.03em}
html[lang="th"] h1,html[lang="th"] h2,html[lang="th"] h3{line-height:1.5;letter-spacing:0}
html[lang="th"] p{line-height:1.9}
html[lang="vi"] h1{font-size:clamp(42px,4.7vw,64px);line-height:1.25}
@media(max-width:600px){html[lang="ja"] h1,html[lang="th"] h1{font-size:38px}html[lang="vi"] h1{font-size:39px}html[lang="ja"] .main-nav,html[lang="vi"] .main-nav{gap:18px}}