:root{--ink:#171c1d;--paper:#f6efdf;--gold:#f5d06b;--muted:#bcc1b6;--olive:#52634c;--line:#d8d3bf;--nav:76px;color-scheme:light;font-family:Arial,Helvetica,sans-serif;font-synthesis:none}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ink);color:var(--paper)}
h1,h2,h3,p,figure,blockquote{margin:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
img{display:block;max-width:100%;height:auto}
em{font-family:Georgia,serif;font-weight:400;font-style:normal;color:#ecd19b}
p{line-height:1.65}
a,button,summary{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #ae7622;outline-offset:5px}
::selection{color:var(--ink);background:var(--gold)}
.navigation{position:fixed;inset:0 0 auto;z-index:30;height:var(--nav);display:flex;align-items:center;padding:0 5%;gap:32px;background:#171c1df2;border-bottom:1px solid #ffffff15;backdrop-filter:blur(18px)}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:29px;font-weight:700;letter-spacing:-.065em}
.brand img{width:40px;height:40px;border-radius:12px}
.navigation>.brand{flex-shrink:0}
.site-nav{margin-left:auto;font-size:14px}
.nav-primary{display:flex;align-items:center;gap:32px}
.nav-primary a{white-space:nowrap;line-height:44px}
.nav-primary a span{display:none}
.site-nav a[aria-current]{color:var(--gold)}
.nav-secondary{display:none}
.nav-toggle{display:grid;place-items:center;flex-shrink:0;width:44px;height:44px;padding:0;border:0;border-radius:12px;background:transparent;color:var(--paper)}
.nav-toggle:hover{background:#ffffff15}
.nav-toggle[hidden],.site-nav[hidden],.menu-close-icon{display:none}
.nav-toggle[aria-expanded=true] .menu-open-icon{display:none}
.nav-toggle[aria-expanded=true] .menu-close-icon{display:block}
.navigation a:hover,.footer a:hover{color:var(--gold)}
.pill{display:inline-flex;justify-content:center;align-items:center;gap:30px;padding:16px 25px;background:var(--gold);border:0;border-radius:100px;color:var(--ink);font-size:16px;font-weight:650;min-height:48px}
.pill:hover{background:#ffe192;color:var(--ink)!important}
.hero-actions{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px 22px}
.film-open{display:inline-flex;align-items:center;gap:8px;min-height:48px;font-size:14px;white-space:nowrap}
.film-open span{color:var(--muted)}
.film-open:hover{color:var(--gold)}
.film-dialog{width:min(1100px,calc(100vw - 32px));max-width:none;max-height:calc(100dvh - 32px);padding:0;border:1px solid var(--olive);border-radius:16px;background:var(--ink);color:var(--paper);overflow:auto}
.film-dialog::backdrop{background:color-mix(in srgb,var(--ink) 85%,transparent);backdrop-filter:blur(10px)}
.film-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:8px 12px 8px 20px;font-size:14px}
.film-close{display:grid;place-items:center;flex-shrink:0;width:44px;height:44px;border:0;border-radius:50%;background:transparent;color:var(--paper)}
.film-close:hover{background:var(--olive)}
.film-dialog video{display:block;width:100%;height:auto;max-height:calc(100dvh - 110px);aspect-ratio:16/9;background:var(--ink)}
.film-status{padding:12px 20px;font-size:14px;color:var(--gold)}
html:has(.film-dialog[open]){overflow:hidden}
.nav-store{flex-shrink:0}
.navigation .nav-store img{display:block;width:144px;height:48px}
.skip-link{position:fixed;top:-80px;left:20px;z-index:50;background:var(--gold);color:var(--ink);padding:15px}
.skip-link:focus{top:12px}
main{padding-top:var(--nav)}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.15em;line-height:1.6;color:var(--gold)}
h1{font-size:clamp(52px,6.4vw,104px);font-weight:500;line-height:1.02;letter-spacing:-.06em}
h2{font-size:clamp(38px,4.9vw,76px);font-weight:500;line-height:1.05;letter-spacing:-.052em}
h3{font-size:25px;font-weight:500;letter-spacing:-.03em}
.hero{text-align:center;padding:40px 6%;min-height:calc(100svh - var(--nav));display:flex;flex-direction:column;align-items:center;justify-content:center}
.hero .eyebrow{margin-bottom:20px}
.hero-description{font-size:18px;color:#ced0c5;margin:20px 0 24px;line-height:1.5}
.hero-scene{width:min(100%,calc(36svh * 1.777));max-width:1060px;aspect-ratio:1672/941;border-radius:16px;overflow:hidden;margin-top:30px}
.hero-scene img{width:100%;height:100%;object-fit:contain}
.roles{width:min(100%,760px);display:grid;grid-template-columns:repeat(4,1fr);gap:12px;font-size:14px;margin-top:16px}
.roles small{display:block;color:var(--muted);font-size:12px;margin-top:5px}
.footer{padding:50px 6% 35px;border-top:1px solid #ffffff25;display:flex;flex-wrap:wrap;gap:36px;justify-content:space-between}
.footer p{font-size:16px;margin-top:12px;color:var(--muted)}
.footer nav{display:grid;grid-template-columns:repeat(3,auto);gap:18px 35px;font-size:14px}
.footer small{width:100%;font-size:12px;color:var(--muted)}
.footer small a{text-decoration:underline;text-underline-offset:3px}

@media(max-width:760px){:root{--nav:64px}
.brand{font-size:19px;gap:8px;letter-spacing:-.05em}
.brand img{width:30px;height:30px}
.navigation .nav-store img{width:120px;height:40px}
.hero{padding:26px 6%}
h1{font-size:clamp(40px,9.8vw,68px)}
.hero .eyebrow{font-size:10px;margin-bottom:16px}
.hero-description{font-size:16px;margin:20px 0}
.hero .pill{padding:13px 22px;font-size:14px}
.hero-scene{width:100%;margin-top:28px}
.roles{gap:5px;font-size:11px;margin-top:14px}
.roles small{font-size:10px}
.footer{padding:35px 6%;gap:28px}
.footer nav{grid-template-columns:repeat(2,auto);gap:20px 30px}
}

@media(max-width:899px){
.navigation{padding:0 16px;gap:12px}
.navigation .nav-store{margin-left:auto}
.navigation .site-nav{position:absolute;top:calc(var(--nav) - 1px);left:0;right:0;max-height:calc(100dvh - var(--nav));overflow:auto;margin:0;padding:18px 24px 24px;background:var(--ink);border-bottom:1px solid #ffffff25;box-shadow:0 24px 32px #0003}
.navigation:not([data-nav-ready])>.site-nav{display:none}
.navigation[data-menu-open]{background:var(--ink)}
.nav-primary{display:flex;flex-direction:column;align-items:stretch;gap:0}
.nav-primary a{display:flex;align-items:center;justify-content:space-between;min-height:64px;line-height:1.2;font-size:25px;letter-spacing:-.03em}
.nav-primary a span{display:block;font-size:24px;font-weight:400;color:var(--gold)}
.nav-secondary{display:flex;gap:28px;margin-top:18px;padding-top:18px;border-top:1px solid #ffffff25;font-size:14px;color:var(--muted)}
.nav-secondary a{display:flex;align-items:center;min-height:44px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
}

.brand img{background:var(--gold);padding:5px;object-fit:contain}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.text-link{display:inline-block;text-decoration:underline;text-underline-offset:6px;font-size:16px;font-weight:600;line-height:1.6;margin-top:26px}
.text-link:hover{opacity:.75}
.together{padding:34px 6%;display:flex;justify-content:center;gap:clamp(28px,7vw,120px);font-size:clamp(17px,2vw,30px);letter-spacing:-.04em;color:#e8d5a7;border-block:1px solid #ffffff25}
.privacy-section{padding:100px 8%;display:grid;grid-template-columns:1.5fr .5fr;gap:9%;align-items:center;background:#172721;color:var(--paper)}
.privacy-section h2{margin:25px 0}
.privacy-section>div>p:not(.eyebrow){font-size:18px;color:#ccd1c5}
.privacy-section .privacy-detail{font-size:14px!important;margin-top:20px;max-width:600px}
.privacy-statement{text-align:center;color:var(--gold)}
.privacy-statement>span{font-family:Georgia,serif;font-size:220px;line-height:1}
.privacy-statement>p{font-size:22px}
.download-section{background:var(--gold);color:var(--ink);padding:100px 6% 80px}
.download-section .eyebrow{color:#58491f}
.download-intro{text-align:center}
.download-intro h2{margin:22px 0}
.download-intro em{color:#5f532e}
.download-intro>p:last-child{font-size:19px}
/* Both halves are required, so the cards read as one pair joined by "+", never as an either/or choice. */
.download-cards{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;max-width:1104px;margin:45px auto 0}
.download-join{align-self:center;display:grid;place-items:center;width:46px;height:46px;border-radius:50%;border:1px solid #b1904266;background:#ffffff40;font-size:24px;font-weight:400;color:#6b5c2e}
.download-cards article{padding:38px;background:#fff6dc;border:1px solid #b190424a;border-radius:24px}
.card-index{font-size:12px;font-weight:700;letter-spacing:.12em;color:#625633}
.download-cards h3{font-size:35px;margin:24px 0 14px}
.download-cards p{font-size:17px;max-width:350px;min-height:58px;color:#535442}
.download-cards .pill{background:var(--ink);color:var(--paper);margin:25px 0 20px;width:100%}
.download-cards .pill:hover{background:#34463b;color:#fff!important}
.store-badge{display:inline-flex;align-items:center;min-height:44px;opacity:.95;transition:opacity .2s ease,transform .2s ease}
.store-badge:hover{opacity:1;transform:translateY(-1px)}
.store-badge img{display:block;width:auto;height:40px}
.download-cards .store-badge{margin:25px 0 20px}
.download-cards .store-badge img{height:48px}
.download-cards small{font-size:13px;line-height:1.7;display:block;color:#565642}
.download-cards .text-link{font-size:14px;margin-top:15px}
.download-bottom{max-width:1060px;margin:30px auto;display:flex;justify-content:center;gap:18px;align-items:center;flex-wrap:wrap}
.download-bottom p{font-size:15px;max-width:660px}
.download-bottom .text-link{margin:0;white-space:nowrap}
.document main{background:var(--paper);color:var(--ink)}
.doc{max-width:850px;margin:auto;padding:76px 35px 100px}
.doc .eyebrow{color:#66532e}
.doc h1{font-size:clamp(44px,5.2vw,76px);margin:24px 0}
.doc .lead{font-size:22px;line-height:1.55;color:#52604c;margin:25px 0}
.doc p,.doc li{font-size:17px;line-height:1.8;color:#4e5849;margin:14px 0}
.doc h2{font-size:29px;line-height:1.2;letter-spacing:-.035em;margin:48px 0 18px;scroll-margin-top:calc(var(--nav) + 20px)}
.doc a:not(.pill){text-decoration:underline;text-underline-offset:4px}
.doc .doc-meta{font-size:13px;color:#62684f}
.doc strong{color:var(--ink)}
.doc ul,.doc ol{padding-left:24px}
.steps li{padding-left:10px;margin:25px 0}
.faq{padding:22px 0;border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-size:18px;font-weight:550;line-height:1.5}
.faq p{font-size:16px;margin:18px 0 0}
.small-note{font-size:14px!important;line-height:1.7;color:#5c654f;margin-top:26px;max-width:950px}

.circle-journey{--stage-h:calc(100svh - var(--nav));position:relative}
.journey-stage{position:relative;isolation:isolate}
.journey-paper,.journey-flyers,.snap-point{display:none}
.journey-chat{background:var(--paper);color:var(--ink);position:relative}
.case-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;overscroll-behavior-x:contain}
.case-track::-webkit-scrollbar{display:none}
.journey-case{flex:0 0 100%;min-width:0;display:grid;grid-template-columns:.85fr 1.15fr;align-items:center;gap:6%;padding:35px 7% 85px;scroll-snap-align:start;scroll-snap-stop:always}
.journey-chat-copy .eyebrow{color:#625e3e}
.journey-chat-copy h2{font-size:clamp(38px,4.5vw,72px);margin:24px 0}
.journey-chat-copy em{color:var(--olive)}
.journey-chat-copy>p:not(.eyebrow){font-size:18px;color:#5a634f;max-width:460px}
.scene-note{display:block;margin-top:30px;font-size:14px;color:#5d654d}
.living-chat{--avatar:52px;width:100%;max-width:590px;min-width:0;border:1px solid #dcdccd;border-radius:24px;padding:26px;background:#fffefa;color:#141815;box-shadow:0 18px 50px #17271812;justify-self:center;font-family:Arial,sans-serif}
.chat-title{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-bottom:20px;margin-bottom:24px;border-bottom:1px solid #e5e4d9}
.chat-title strong{font-size:17px;font-weight:600;letter-spacing:-.025em}
.chat-title>span{font-size:11px;color:#59634e;white-space:nowrap}
.demo-message{display:grid;grid-template-columns:var(--avatar) minmax(0,1fr);gap:13px;margin-bottom:17px;align-items:start}
.demo-message:last-child{margin-bottom:0}
.chat-person{position:relative;width:var(--avatar);height:var(--avatar);border-radius:50%;overflow:hidden;background:#e5decf;box-shadow:0 0 0 1px #d1ccb7}
.chat-person img,.flying-person img{position:absolute;height:auto;pointer-events:none;filter:brightness(1.22) saturate(1.06)}
.demo-message header{display:flex;gap:7px;align-items:center;line-height:1.3;margin:0 0 5px;flex-wrap:wrap}
.demo-message strong{font-size:17px}
.demo-message small{font-size:10px;color:#4d5d44;background:#edf0e3;border-radius:5px;padding:3px 5px;white-space:nowrap}
.demo-message small:empty{display:none}
.demo-message time{font-size:11px;color:#6a7064;margin-left:auto}
.demo-message p{font-size:16px;line-height:1.5;letter-spacing:-.015em}
.demo-message mark{background:#e8ecdf;color:#445e39;border-radius:3px;padding:0 2px}
.message-picture{width:176px;aspect-ratio:4/3;object-fit:cover;border-radius:12px;margin-top:12px}
/* Ray 说他做了张图表,那就得真有一张。内联 SVG,不多一次请求。 */
.message-chart{display:block;width:100%;max-width:196px;height:auto;margin-top:9px}
.message-chart circle{fill:#3f5a41}
.message-chart>rect{fill:#f7f6ee;stroke:#dde1d1}
.chart-actual{fill:none;stroke:#3f5a41;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.chart-said{stroke:#a3ae99;stroke-width:1.5;stroke-dasharray:3 3}
.chart-title{font-size:9px;font-weight:700;letter-spacing:.12em;fill:#6a7064}
.chart-label{font-size:8px;fill:#8a9382}
.chart-peak{font-size:10px;font-weight:700;fill:#3f5a41}
/* 语音条照 App 里的形态:波形、时长、点一下播放/暂停。只有点了才加载音频。 */
/* 宽度按时长走,5 秒大概只占气泡一半——照 IM 里语音条的比例,不撑满整行。 */
.voice-note{display:flex;align-items:center;gap:9px;margin-top:9px;padding:6px 12px 6px 6px;background:#e9ece0;border:0;border-radius:14px;width:max-content;max-width:100%}
.voice-play{flex-shrink:0;width:30px;height:30px;border:0;border-radius:50%;background:#2f4434;color:#fff0c7;display:grid;place-items:center}
.voice-play:hover{background:#3d5743}
.voice-play svg{width:14px;height:14px;fill:currentColor}
.voice-note .voice-icon-pause{display:none}
.voice-note[data-playing=yes] .voice-icon-play{display:none}
.voice-note[data-playing=yes] .voice-icon-pause{display:block}
.voice-wave{flex-shrink:0;display:flex;align-items:center;gap:2px;height:22px}
.voice-wave i{width:2px;border-radius:1px;background:#b3bfa8}
.voice-wave i[data-played=yes]{background:#3f5a41}
/* 窄屏把消息头上的时间戳藏了,但语音条的时长是内容的一部分,不能跟着消失。 */
.voice-note .voice-length{display:block;flex-shrink:0;font-size:11px;color:#5d654d;font-variant-numeric:tabular-nums}

.case-controls{position:absolute;bottom:22px;left:9%;display:flex;align-items:center;gap:10px}
.case-controls button{border:0}
.case-arrow{width:44px;height:44px;border-radius:50%;background:#e6e0cd;color:#455b3b;font-size:20px}
.case-tabs{display:flex;border:1px solid #c5c4ac;padding:4px;border-radius:99px}
.case-tabs button{padding:10px 18px;border-radius:99px;font-size:14px;min-height:40px;background:transparent;color:#505a45}
.case-tabs button[aria-pressed=true]{background:#283a2c;color:#fff0c7}
.circle-journey[data-motion=on]{height:calc(2 * var(--stage-h))}
.circle-journey[data-motion=on] .journey-stage{position:sticky;top:var(--nav);height:var(--stage-h);overflow:hidden}
.circle-journey[data-motion=on] .journey-hero{position:absolute;inset:0;min-height:0;opacity:var(--room-fade,1);padding-block:20px}
.circle-journey[data-motion=on] .journey-chat{position:absolute;inset:0;background:transparent}
.circle-journey[data-motion=on] .living-chat{opacity:var(--chat-fade,0)}
.circle-journey[data-motion=on] .journey-chat-copy,.circle-journey[data-motion=on] .case-controls{opacity:var(--copy-fade,0)}
/* The paper opens as a circle from where the avatars are heading, so the room never shows through the chat. */
.circle-journey[data-motion=on] .journey-paper{display:block;position:absolute;inset:0;background:var(--paper);z-index:-1;opacity:var(--paper-fade,0);clip-path:circle(var(--paper-reach,0%) at 62% 52%)}
.circle-journey[data-motion=on] .case-track{height:100%}
.circle-journey[data-motion=on] .journey-case{align-content:center;overflow:hidden}
.circle-journey[data-motion=on] .living-chat{max-height:100%;min-height:0}
.circle-journey[data-motion=on] .journey-flyers{display:block;position:absolute;inset:0;pointer-events:none;z-index:5}
.flying-person{position:absolute;left:0;top:0;overflow:hidden;outline:3px solid var(--gold);box-shadow:0 8px 28px #0004;opacity:0;will-change:transform,width,height}
/* 只作 #circle 的锚点落点,不参与吸附:整页纵向 snap 会把没滑够的手势弹回起点。 */
.circle-journey[data-motion=on] .snap-point{display:block;position:absolute;left:0;width:1px;height:1px;pointer-events:none}
.snap-first{top:0}
.snap-last{top:var(--stage-h)}
/* Messages rise in one after another once the paper has filled, so the chat assembles instead of fading in flat. */
.journey-chat .demo-message{transition:transform .5s cubic-bezier(.32,.72,0,1),opacity .5s cubic-bezier(.32,.72,0,1)}
.circle-journey[data-motion=on] .journey-chat[data-entered=no] .demo-message{transform:translateY(18px);opacity:0}
.journey-chat[data-entered=yes] .demo-message{transform:none;opacity:1}
.demo-message:nth-child(2){transition-delay:.07s}
.demo-message:nth-child(3){transition-delay:.14s}
.demo-message:nth-child(4){transition-delay:.21s}
.demo-message:nth-child(5){transition-delay:.28s}

@media(min-width:761px) and (max-height:850px){.circle-journey[data-motion=on] .hero h1{font-size:clamp(48px,5.5vw,82px)}
.circle-journey[data-motion=on] .hero-description{font-size:16px;margin:15px 0}
.circle-journey[data-motion=on] .hero-scene{width:min(100%,calc(30svh * 1.777));margin-top:22px}
.circle-journey[data-motion=on] .hero .eyebrow{margin-bottom:14px}
.circle-journey[data-motion=on] .hero .pill{padding:12px 22px}
.circle-journey[data-motion=on] .roles{margin-top:13px}
}

@media(max-width:1000px) and (min-width:761px){.journey-case{padding-inline:6%;gap:5%}
.journey-chat-copy h2{font-size:40px}
.journey-chat-copy>p:not(.eyebrow){font-size:16px}
}

@media(max-width:760px){
.together{padding:26px 6%;font-size:16px;gap:12px}
.privacy-section{display:block}
.privacy-section>div>p:not(.eyebrow){font-size:17px}
.privacy-statement{display:flex;gap:25px;align-items:center;text-align:left;margin-top:30px}
.privacy-statement>span{font-size:120px}
.privacy-statement>p{font-size:19px}
.download-cards{grid-template-columns:1fr;gap:16px;margin-top:35px}
.download-cards article{padding:28px}
.download-cards h3{font-size:30px}
.download-cards p{min-height:0}
.download-join{justify-self:center;width:40px;height:40px;font-size:21px}
.download-bottom{gap:12px}
.doc{padding:45px 6% 70px}
.doc h1{font-size:45px}
.doc .lead{font-size:20px}
.doc p,.doc li{font-size:16px}
.journey-case{display:flex;flex-direction:column;gap:22px;justify-content:center;padding:28px 5% 90px}
.journey-chat-copy{text-align:center}
.journey-chat-copy .eyebrow{font-size:10px}
.journey-chat-copy h2{font-size:31px;line-height:1.06;margin:12px 0 0}
.journey-chat-copy>p:not(.eyebrow),.scene-note{display:none}


.circle-journey[data-motion=on] .journey-case{padding:20px 5% 74px;gap:17px}
.case-controls{left:50%;transform:translateX(-50%);bottom:15px;gap:8px;white-space:nowrap}
.case-tabs{padding:3px}
.case-tabs button{padding:10px 15px;font-size:13px;min-height:38px}
.case-arrow{width:40px;height:40px}
.circle-journey[data-motion=on] .hero-scene{max-width:560px}
.circle-journey[data-motion=on] .hero-description{font-size:16px}
}

@media(prefers-reduced-motion:reduce){
.case-track{scroll-behavior:auto}
.flying-person{display:none!important}
.data-connection::after{display:none}
.store-badge,.store-badge:hover{transition:none;transform:none}
}

.hero h1{font-size:clamp(46px,5.3vw,82px)}
.changing-role{display:inline-grid;overflow:hidden;min-width:5.6em;text-align:left;color:#ecd19b;vertical-align:bottom;padding-bottom:.1em;margin-bottom:-.1em}
.role-word{grid-area:1/1;will-change:transform,opacity}
@media(min-width:761px) and (max-height:850px){.circle-journey[data-motion=on] .hero h1{font-size:clamp(42px,4.5vw,64px)}
.circle-journey[data-motion=on] .hero-scene{width:min(100%,calc(27svh * 1.777))}
}
@media(max-width:760px){.hero h1{font-size:clamp(36px,8.7vw,57px)}
.circle-journey[data-motion=on] .hero-scene{margin-top:22px}
.circle-journey[data-motion=on] .hero .eyebrow{font-size:9px}
.hero-description{font-size:16px}
}

@media(min-width:761px) and (max-height:739px){.circle-journey[data-motion=on] .hero h1{font-size:42px}.circle-journey[data-motion=on] .hero .eyebrow{font-size:10px;margin-bottom:12px}.circle-journey[data-motion=on] .hero-description{font-size:14px;line-height:1.4;margin:12px 0}.circle-journey[data-motion=on] .hero .pill{min-height:40px;padding:10px 20px;font-size:13px}.circle-journey[data-motion=on] .hero-scene{width:min(100%,calc(20svh * 1.777));margin-top:18px}.circle-journey[data-motion=on] .roles{font-size:12px;margin-top:12px}.circle-journey[data-motion=on] .roles small{font-size:10px}.circle-journey[data-motion=on] .journey-case{padding-top:20px;padding-bottom:55px}.circle-journey[data-motion=on] .journey-chat-copy h2{font-size:38px}}
@media(max-width:760px) and (max-height:739px){.circle-journey[data-motion=on] .hero h1{font-size:34px}.circle-journey[data-motion=on] .hero .eyebrow{font-size:9px;margin-bottom:12px}.circle-journey[data-motion=on] .hero-description{font-size:14px;line-height:1.4;margin:12px 0}.circle-journey[data-motion=on] .hero .pill{min-height:40px;font-size:13px;padding:10px 20px}.circle-journey[data-motion=on] .hero-scene{width:min(100%,calc(24svh * 1.777));margin-top:18px}.circle-journey[data-motion=on] .roles{font-size:10px;margin-top:12px}.circle-journey[data-motion=on] .roles small{font-size:9px}.circle-journey[data-motion=on] .journey-chat-copy .eyebrow{display:none}.circle-journey[data-motion=on] .journey-chat-copy h2{font-size:27px;margin:0}.circle-journey[data-motion=on] .journey-case{gap:12px;padding-top:14px}}
.hero .roles{width:min(100%,calc(36svh * 1.777));max-width:1060px}
@media(min-width:761px) and (max-height:850px){.circle-journey[data-motion=on] .hero .roles{width:min(100%,calc(27svh * 1.777))}}
@media(min-width:761px) and (max-height:739px){.circle-journey[data-motion=on] .hero .roles{width:min(100%,calc(20svh * 1.777))}}
@media(max-width:760px){.hero .roles{width:100%}}
@media(max-width:760px) and (max-height:739px){.circle-journey[data-motion=on] .hero .roles{width:min(100%,calc(24svh * 1.777))}}
.platform-note{font-size:12px;line-height:1.4;color:#bdc4b6;margin-top:12px}.hero-scene{margin-top:22px}@media(max-height:739px){.platform-note{font-size:10px;margin-top:9px}.circle-journey[data-motion=on] .hero-scene{margin-top:13px}}

@media(max-width:760px){
.living-chat{--avatar:44px;max-width:560px;padding:18px;border-radius:20px}
.chat-title{padding-bottom:14px;margin-bottom:18px}
.chat-title strong{font-size:15px}
.chat-title>span{font-size:10px}
.demo-message{gap:11px;margin-bottom:13px}
.demo-message strong{font-size:16px}
.demo-message p{font-size:15px;line-height:1.45}
.demo-message time{display:none}
.message-picture{width:148px;margin-top:10px}
}
@media(max-height:739px){
.circle-journey[data-motion=on] .living-chat{--avatar:44px;padding:14px}
.circle-journey[data-motion=on] .chat-title{margin-bottom:10px;padding-bottom:10px}
.circle-journey[data-motion=on] .demo-message{gap:10px;margin-bottom:8px}
.circle-journey[data-motion=on] .demo-message:last-child{margin-bottom:0}
.circle-journey[data-motion=on] .demo-message header{margin:0 0 4px}
.circle-journey[data-motion=on] .demo-message strong{font-size:15px}
.circle-journey[data-motion=on] .demo-message p{font-size:14px;line-height:1.4}
.circle-journey[data-motion=on] .message-picture{width:112px;margin-top:8px}
}

.hero-copy{display:flex;flex-direction:column;align-items:center}
.hero-visual{width:100%;display:flex;flex-direction:column;align-items:center}
@media(min-width:1100px){
.hero,.circle-journey[data-motion=on] .journey-hero{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:5%;padding:40px 5.5%;text-align:left;align-content:center}
.hero-copy{align-items:flex-start;max-width:680px;justify-self:end}
.hero h1,.circle-journey[data-motion=on] .hero h1{font-size:clamp(44px,3.6vw,76px);line-height:1.06;letter-spacing:-.055em}
.hero .eyebrow,.circle-journey[data-motion=on] .hero .eyebrow{font-size:11px;line-height:1.6;margin-bottom:22px}
.hero-description,.circle-journey[data-motion=on] .hero-description{font-size:18px;line-height:1.55;margin:26px 0}
.hero-visual{width:100%;max-width:1120px;justify-self:start}
.hero-scene,.circle-journey[data-motion=on] .hero-scene{width:100%;max-width:none;margin:0;border-radius:24px}
.hero .roles,.circle-journey[data-motion=on] .hero .roles{width:100%;max-width:none;position:relative;display:block;text-align:center;font-size:13px;height:50px;margin-top:20px}
.hero .roles>span{position:absolute;top:0;transform:translateX(-50%);width:18%}
.hero .roles>span:nth-child(1){left:34.84%}
.hero .roles>span:nth-child(2){left:49.79%}
.hero .roles>span:nth-child(3){left:67.58%}
.hero .roles>span:nth-child(4){left:86.10%}
.hero .roles small,.circle-journey[data-motion=on] .hero .roles small{font-size:11px}
}
@media(min-width:1100px) and (max-height:739px){
.hero,.circle-journey[data-motion=on] .journey-hero{padding-block:24px}
.hero h1,.circle-journey[data-motion=on] .hero h1{font-size:clamp(38px,3.1vw,60px)}
.hero .eyebrow,.circle-journey[data-motion=on] .hero .eyebrow{margin-bottom:15px}
.hero-description,.circle-journey[data-motion=on] .hero-description{font-size:15px;margin:18px 0}
.hero-visual{max-width:calc((100svh - var(--nav) - 115px) * 1.777)}
}

@media(max-width:1099px){
.hero .roles{position:relative;display:block;text-align:center;height:62px}
.hero .roles>span{position:absolute;top:0;transform:translateX(-50%);width:18%}
.hero .roles>span:nth-child(1){left:34.84%}
.hero .roles>span:nth-child(2){left:49.79%}
.hero .roles>span:nth-child(3){left:67.58%}
.hero .roles>span:nth-child(4){left:86.10%}
}

.link-icon{display:inline-block;width:20px;height:20px;flex-shrink:0;vertical-align:-4px}.pill>span{display:inline-flex}.case-arrow{display:grid;place-items:center}.connection .link-icon{width:32px;height:32px}

.breadcrumb{display:flex;gap:10px;align-items:center;font-size:13px;letter-spacing:0;color:#58614f;margin:0 0 32px;text-align:left}.breadcrumb a{text-decoration:underline;text-underline-offset:3px}.doc .breadcrumb a{font-size:13px}

/* The handoff page answers one question — "I am at my Mac, give me the app" — so the download is the only bright thing on it. */
.handoff-page main{background:var(--ink);color:var(--paper)}
.handoff{max-width:780px;margin:auto;padding:72px 6% 96px;text-align:center}
.handoff-from{font-size:12px;font-weight:700;letter-spacing:.15em;color:var(--gold);line-height:1.6}
.handoff h1{font-size:clamp(36px,4.4vw,62px);margin:20px 0 0}
.handoff-note{font-size:18px;color:#ced0c5;max-width:540px;margin:22px auto 36px}
.handoff-cta{font-size:18px;padding:19px 34px;gap:18px}
.handoff-req{font-size:13px;color:var(--muted);margin-top:18px;line-height:1.8}
.handoff-phone{display:none}
.handoff-steps{counter-reset:handoff;list-style:none;text-align:left;max-width:580px;margin:56px auto 0;padding:0;border-top:1px solid #ffffff20}
.handoff-steps li{counter-increment:handoff;position:relative;padding:22px 0 22px 46px;border-bottom:1px solid #ffffff20;font-size:16px;line-height:1.65;color:#ced0c5}
.handoff-steps li::before{content:counter(handoff);position:absolute;left:0;top:22px;width:28px;height:28px;border-radius:50%;border:1px solid #ffffff30;display:grid;place-items:center;font-size:13px;color:var(--gold)}
.handoff-steps strong{color:var(--paper);font-weight:600}
.handoff-other{font-size:14px;color:var(--muted);margin-top:42px;line-height:1.8}
.handoff-other a{text-decoration:underline;text-underline-offset:5px;color:var(--paper)}
/* Touch devices can't run the .dmg, so they get the address to carry to a Mac.
   Keyed on pointer, not width: a narrowed Mac window is still a Mac, and an iPad still isn't one. */
@media(pointer:coarse){
.handoff-phone{display:block;margin:0 auto 30px;padding:16px 18px;border:1px solid #ffffff28;border-radius:16px;background:#ffffff0a;font-size:14px;line-height:1.7;color:#dfe3d7;max-width:420px}
.handoff-phone strong{display:block;color:var(--gold);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:15px;margin-top:6px}
}
@media(max-width:760px){
.handoff{padding:44px 6% 64px}
.handoff-note{font-size:16px;margin-bottom:28px}
.handoff-cta{font-size:16px;padding:16px 26px;width:100%}
.handoff-steps{margin-top:40px}
.handoff-steps li{font-size:15px;padding-left:42px}
}
.privacy-section.privacy-map{display:block;padding:90px 6%;background:#172721}
.map-intro{max-width:880px;margin:auto;text-align:center;scroll-margin-top:calc(var(--nav) + 30px)}
.map-intro h2>span{display:inline-block}
.map-intro>p:last-child{max-width:680px;margin:auto;font-size:18px;color:#ccd1c5}
.data-flow{display:grid;grid-template-columns:1fr 52px 1fr 52px 1fr 52px 1.6fr;align-items:center;max-width:1300px;margin:48px auto 0;border:1px solid #ffffff20;border-radius:24px;padding:32px 24px;background:#ffffff05}
.data-node{display:flex;flex-direction:column;align-items:center;text-align:center;gap:16px;min-width:0}
.data-node>svg{width:46px;height:46px;fill:none;stroke:#f6efdf;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.data-node strong{font-size:18px;font-weight:600;letter-spacing:-.03em}
.data-node small{font-size:12px;line-height:1.5;color:#bcc8b7;max-width:200px;min-height:36px}
.data-connection{position:relative;height:1px;border-top:3px dotted #81967a;margin:0 6px 20px}
.model-connection{border-color:var(--gold)}
/* 一颗光点依次淌过三段连线,把"消息从手机经 iCloud 到 Mac"这件事演出来,而不是只画三根虚线。 */
.data-connection::after{content:"";position:absolute;top:-5px;left:0;width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 11px #f5d06bcc;animation:data-drift 3s cubic-bezier(.5,0,.5,1) infinite}
.data-connection:nth-child(4)::after{animation-delay:.5s}
.data-connection:nth-child(6)::after{animation-delay:1s}
@keyframes data-drift{0%{left:0;opacity:0}12%{opacity:1}88%{opacity:1}100%{left:100%;opacity:0}}

.model-choice{min-width:0;border:1px dashed #d4b86480;border-radius:18px;padding:14px 14px 17px;background:#f5d06b0a}
.model-tabs{display:flex;gap:4px;padding:4px;border:1px solid #ffffff22;border-radius:99px;margin-bottom:15px}
.model-tabs button{flex:1;min-width:0;padding:9px 10px;border:0;border-radius:99px;background:transparent;color:#cdd6c6;font-size:13px;min-height:40px;white-space:nowrap}
.model-tabs button[aria-selected=true]{background:var(--gold);color:var(--ink);font-weight:650}
.model-panel{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px}
.model-panel[hidden]{display:none}
.model-panel>svg{width:32px;height:32px;fill:none;stroke:var(--gold);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.model-panel strong{font-size:16px;font-weight:600;letter-spacing:-.025em}
.model-panel>p{font-size:13px!important;line-height:1.6;color:#c3cbba;max-width:300px}
.model-meta{font-size:11px;line-height:1.5;color:#e0c88f;letter-spacing:.04em}
.privacy-points{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin:30px auto;max-width:1200px}
.privacy-points span{border:1px solid #90a18566;border-radius:100px;padding:10px 17px;font-size:13px;color:#e0e6d7}
.map-details{max-width:820px;margin:30px auto 0;text-align:center}
.map-details>p{font-size:14px!important;color:#bcc8b7;line-height:1.7}
.map-links{display:flex;justify-content:center;gap:30px;flex-wrap:wrap}
.map-links .text-link{font-size:14px;margin-top:18px}
@media(max-width:900px){
.privacy-section.privacy-map{padding:60px 6%}
.data-flow{grid-template-columns:1fr;gap:14px;padding:26px 20px;margin-top:30px}
.data-node{gap:9px}.data-node>svg{width:38px;height:38px}.data-node small{min-height:0;max-width:230px}
.data-connection{height:22px;width:1px;border-top:0;border-left:3px dotted #81967a;margin:0 auto}.model-connection{border-color:var(--gold)}
.data-connection::after{left:-5px;top:0;animation-name:data-drift-down}
@keyframes data-drift-down{0%{top:0;opacity:0}12%{opacity:1}88%{opacity:1}100%{top:100%;opacity:0}}
.model-choice{width:100%;max-width:340px;justify-self:center;margin-bottom:0}
.privacy-points{gap:8px}.privacy-points span{font-size:12px;padding:9px 12px}.map-links{gap:8px 24px}
}