:root {
  --paper:#fbfcfe; --surface:#fff; --subtle:#f4f5f9; --ink:#20222d; --muted:#646775;
  --accent:#5c50d6; --accent-hover:#4b40bc; --accent-soft:#eeecfc; --line:#e2e5ed;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,"PingFang SC","PingFang TC",sans-serif;
  color:var(--ink); background:var(--paper); font-family:var(--font); font-synthesis:none;
  scroll-behavior:smooth; scroll-padding-top:104px;
}
* {box-sizing:border-box}
body {margin:0;min-width:320px;-webkit-font-smoothing:antialiased}
img {display:block;max-width:100%;height:auto}
a {color:inherit;text-decoration:none}
button,summary,a { -webkit-tap-highlight-color:transparent }
button {font:inherit;color:inherit;cursor:pointer}
button,summary {touch-action:manipulation}
button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible {outline:3px solid #8d80ef;outline-offset:5px}
main:focus {outline:none}
[hidden] {display:none!important}
::selection {background:#ded8ff;color:#252039}
.wrap {width:min(1200px,calc(100% - 96px));margin-inline:auto}
.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}
.icon {width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}
.skip {position:fixed;top:-100px;left:16px;z-index:100;background:var(--ink);color:white;padding:14px 20px;border-radius:10px}
.skip:focus {top:12px}
.site-header {position:sticky;top:0;z-index:50;background:var(--paper);border-bottom:1px solid transparent;transition:border-color .2s,background .2s}
.site-header.is-scrolled {background:rgba(251,252,254,.97);border-bottom-color:var(--line)}
@supports(backdrop-filter:blur(18px)) {.site-header.is-scrolled{background:rgba(251,252,254,.88);backdrop-filter:blur(18px)}}
.header-inner {height:72px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative}
.brand {display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:650;letter-spacing:-.8px;white-space:nowrap}
.brand img {width:32px;height:32px;border-radius:9px}
.desktop-nav {display:flex;align-items:center;gap:28px;font-size:13px;color:#535664}
.desktop-nav a {padding-block:15px;transition:color .18s}
.desktop-nav a:hover {color:var(--accent)}
.header-end {display:flex;align-items:center;gap:18px}
.button {display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:52px;padding:14px 23px;border:1px solid var(--accent);border-radius:11px;color:white;background:var(--accent);font-size:14px;font-weight:550;line-height:1.4;white-space:nowrap;transition:background .18s,border-color .18s,box-shadow .18s}
.button:hover {background:var(--accent-hover);border-color:var(--accent-hover);box-shadow:0 4px 12px #5c50d61a}
.button.small {min-height:40px;padding:10px 16px;font-size:12px;border-radius:9px}
.button.secondary {background:white;color:var(--ink);border-color:var(--line)}
.button.secondary:hover {background:var(--subtle);border-color:#c8cad7;box-shadow:none}
.language-switch {position:relative;font-size:12px}
.language-trigger {min-height:44px;display:flex;align-items:center;gap:8px;padding:9px 7px;cursor:pointer;list-style:none;border-radius:8px;user-select:none}
.language-trigger::-webkit-details-marker,.menu-button::-webkit-details-marker {display:none}
.language-trigger>.icon:first-child {width:16px;height:16px;color:#737581}
.language-trigger .chevron {width:14px;height:14px;color:#737581;transition:transform .18s}
.language-switch[open] .chevron {transform:rotate(180deg)}
.language-trigger:hover,.language-switch[open] .language-trigger {background:var(--subtle)}
.language-panel {position:absolute;top:calc(100% + 10px);right:0;width:204px;padding:7px;background:white;border:1px solid var(--line);border-radius:14px;box-shadow:0 16px 40px #20222d14,0 3px 10px #20222d06;z-index:60}
.language-panel a {display:flex;align-items:center;justify-content:space-between;min-height:44px;padding:11px 13px;border-radius:8px;font-size:13px;line-height:1.5}
.language-panel a:hover {background:var(--subtle)}
.language-panel a[aria-current] {color:var(--accent);background:var(--accent-soft)}
.language-panel .icon {width:15px;height:15px}
.mobile-navigation {display:none}
.hero {position:relative;padding-bottom:36px;isolation:isolate}
.hero:before {content:"";position:absolute;z-index:-1;inset:200px 0 0;pointer-events:none;background:radial-gradient(ellipse at 55% 62%,#e9e4fb 0%,#f0eef9 30%,#f6f7fc 48%,transparent 74%)}
.hero-copy {text-align:center;padding-top:40px;padding-bottom:30px}
h1 {font-size:clamp(56px,5.5vw,76px);font-weight:550;letter-spacing:-.055em;line-height:1.04;margin:0}
.hero h1 span {display:block}
.hero h1 span:last-child {color:#72668b}
.hero-intro {max-width:650px;margin:20px auto 0;font-size:18px;line-height:1.6;color:var(--muted);letter-spacing:-.25px;text-wrap:pretty}
.hero-actions {display:flex;justify-content:center;align-items:center;gap:12px;margin-top:22px;flex-wrap:wrap}
.product-stage {max-width:1000px;position:relative;margin-block:0;text-align:center}
.product-frame {background:#fff;border:1px solid #d8d8e6;border-radius:14px;overflow:hidden;box-shadow:0 24px 48px -24px #39315a40,0 4px 12px #29203d0d;padding:0}
.product-frame img {width:100%;border-radius:13px}
.product-stage figcaption {margin-top:12px;font-size:11px;line-height:1.5;color:#747482}
.section {padding-block:72px}
h2 {font-size:clamp(34px,3.4vw,46px);line-height:1.1;letter-spacing:-.055em;font-weight:520;margin:0;white-space:pre-line;text-wrap:balance}
h3 {font-weight:560;letter-spacing:-.025em}
p {text-wrap:pretty}
.section-heading {display:flex;justify-content:space-between;align-items:flex-start;gap:48px;margin-bottom:28px}
.section-heading>p {max-width:450px;font-size:16px;line-height:1.65;color:var(--muted);margin:0 0 3px}
.experience {border-bottom:1px solid var(--line)}
.demo-tabs {display:flex;gap:28px;flex-wrap:wrap;margin-bottom:18px}
.demo-tabs button {background:none;color:var(--muted);font-size:13px;border:0;border-bottom:2px solid transparent;padding:12px 0;min-height:44px;line-height:1.5;transition:color .18s,border-color .18s}
.demo-tabs button[aria-selected=true] {color:var(--accent);border-color:var(--accent);font-weight:550}
.demo-tabs button:hover {color:var(--ink)}
.demo-stage {display:grid;grid-template-columns:.85fr 1.15fr;min-height:300px;border:1px solid #dddde9;border-radius:20px;overflow:hidden;background:white}
.moment {background:#f0eef8;padding:30px;display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;gap:25px}
.context-label {font-size:12px;color:#767183}
.moment blockquote {margin:0;font-size:26px;line-height:1.4;letter-spacing:-.7px;max-width:350px}
.moment small {font-size:11px;color:#777182}
.cue-display {padding:30px 34px;display:flex;flex-direction:column;justify-content:space-between;gap:24px}
.cue-header {display:flex;align-items:center;gap:9px;font-size:12px;color:#777082}
.cue-header .icon {color:var(--accent);width:16px;height:16px}
.cue-copy h3 {font-size:22px;margin:8px 0 15px;line-height:1.4}
.cue-copy p {font-size:23px;color:#4d4b60;line-height:1.5;margin:0;max-width:490px}
.cue-controls {display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:11px;color:#83808e}
.cue-controls button {display:flex;align-items:center;gap:12px;border:0;background:none;padding:8px 0;min-height:44px;font-size:12px;color:var(--accent)}
.workflow {display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:start}
.workflow-intro>p {font-size:16px;line-height:1.65;color:var(--muted);max-width:390px;margin-top:18px}
.workflow-step {display:grid;grid-template-columns:28px 1fr;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.workflow-step:first-child {padding-top:4px}
.step-no {font:11px/2.1 ui-monospace,SFMono-Regular,monospace;color:#8c869f}
.workflow-step h3 {font-size:20px;line-height:1.4;margin:0 0 8px}
.workflow-step p {font-size:15px;line-height:1.65;color:var(--muted);margin:0}
.service-note {font-size:12px;line-height:1.8;color:#737584;margin:18px 0 0 46px}
.phone-section {background:#20212a;color:#f3f2f9;position:relative;isolation:isolate;overflow:hidden}
.phone-section:before {content:"";position:absolute;z-index:-1;inset:0;pointer-events:none;background:radial-gradient(ellipse at 75% 45%,#3d365738,transparent 65%)}
.phone-grid {display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.phone-copy>h2 {font-size:clamp(36px,3.8vw,52px)}
.phone-copy>.section-intro {font-size:16px;line-height:1.65;color:#c4c3cf;max-width:480px;margin-top:18px}
.phone-points {display:grid;gap:18px;margin-top:24px}
.phone-point {display:grid;grid-template-columns:20px 1fr;gap:16px}
.phone-point>.icon {color:#b2a8ff;margin-top:4px;width:18px;height:18px}
.phone-point h3 {font-size:16px;line-height:1.5;margin:0 0 5px;font-weight:520}
.phone-point p {font-size:14px;line-height:1.65;color:#c4c3cf;margin:0}
.phone-note {font-size:12px;line-height:1.8;color:#a3a0b2;border-top:1px solid #3a3847;padding-top:18px;margin-top:20px}
.text-link {display:inline-flex;align-items:center;gap:12px;font-size:13px;line-height:1.5;padding-block:10px;color:var(--accent)}
.text-link:hover {text-decoration:underline;text-underline-offset:5px}
.phone-section .text-link {color:#c1b9ff}
.phone-visual {min-width:0;margin:0}.phone-visual figcaption {text-align:center;color:#aaa7bb;font-size:11px;line-height:1.5;margin-top:10px}
.phone-gallery {position:relative;height:540px;min-width:0;display:flex;align-items:center;justify-content:center}
.phone-shell {position:relative;z-index:2;width:226px;border:6px solid #111116;border-radius:38px;background:#111116;overflow:hidden;box-shadow:0 35px 55px -20px #0008;margin-right:92px}
.phone-library {position:absolute;width:205px;right:0;top:50%;transform:translateY(-40%);border:6px solid #111116;border-radius:35px;background:#111116;overflow:hidden;box-shadow:0 30px 50px -20px #0008}
.phone-shell img,.phone-library img {width:100%}
.privacy-section .section-heading {align-items:center}
.privacy-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.privacy-grid article>.icon {width:24px;height:24px;color:var(--accent);margin-bottom:16px}
.privacy-grid h3 {font-size:19px;line-height:1.45;margin:0 0 12px}
.privacy-grid p {font-size:15px;line-height:1.65;color:var(--muted);margin:0}
.availability-section {background:var(--subtle);border-block:1px solid var(--line)}
.platforms {display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:28px}
.platform-card {background:white;border:1px solid #e0e1e9;border-radius:16px;padding:28px;display:flex;flex-direction:column;align-items:flex-start}
.platform-icon {width:30px;height:30px;color:#62606f;stroke-width:1.3}
.platform-card h3 {font-size:22px;margin:20px 0 10px}
.platform-card>p {font-size:15px;line-height:1.65;color:var(--muted);max-width:440px;margin:0 0 24px;min-height:50px}
.platform-card .button {margin-top:auto}
.platform-foot {font-size:11px;line-height:1.7;color:#737481;margin-top:18px}
.download-note {font-size:12px;line-height:1.7;color:var(--muted);margin-top:14px}
.coming-soon {font-size:13px;color:#777180;background:#f4f2fa;border:1px solid #e6e1f2;border-radius:9px;min-height:50px;display:flex;align-items:center;padding:12px 17px;margin-top:auto;line-height:1.5}
.platform-help {font-size:12px;margin-top:14px;line-height:1.8;color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.availability-note {font-size:12px;line-height:1.8;color:var(--muted);margin:24px 0 0;max-width:740px}
.faq {display:grid;grid-template-columns:.7fr 1.3fr;gap:64px}
.faq>div {min-width:0}
.faq details {border-bottom:1px solid var(--line)}
.faq details:first-child {border-top:1px solid var(--line)}
.faq summary {font-size:15px;line-height:1.5;font-weight:500;cursor:pointer;padding:18px 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px}
.faq summary::-webkit-details-marker {display:none}
.faq summary:after {content:"+";color:#8d859e;font-weight:350;font-size:22px}
.faq details[open] summary:after {content:"−"}
.faq details p {font-size:14px;line-height:1.8;color:var(--muted);margin:0 30px 25px 0}
.site-footer {border-top:1px solid var(--line);padding:32px 0 20px}
.footer-top {display:flex;justify-content:space-between;gap:40px;align-items:flex-start}
.footer-tag {font-size:13px;color:var(--muted);margin:14px 0 0;line-height:1.7}
.footer-links {display:flex;align-items:center;gap:24px;flex-wrap:wrap;font-size:12px;justify-content:flex-end}
.footer-links a {padding-block:13px}
.footer-links a:hover {color:var(--accent)}
.footer-bottom {font-size:11px;color:#81828e;display:flex;justify-content:space-between;gap:20px;padding-top:22px;margin-top:24px;border-top:1px solid var(--line);line-height:1.8}
.subpage {max-width:790px;margin-inline:auto;padding:48px 0 72px;overflow-wrap:anywhere}
.subpage h1 {font-size:52px;line-height:1.15;letter-spacing:-.05em;margin:28px 0 22px;white-space:normal}
.subpage .intro {font-size:18px;line-height:1.8;color:var(--muted);margin:0 0 40px}
.subpage h2 {font-size:27px;line-height:1.4;letter-spacing:-.03em;margin:36px 0 16px;white-space:normal}
.subpage section {padding-bottom:25px;border-bottom:1px solid var(--line)}
.subpage p {font-size:15px;line-height:1.9;color:var(--muted)}
.subpage small {font-size:12px;color:#777483}
.subpage a:not(.back-link):not(.resource-card) {text-decoration:underline;text-underline-offset:4px}
.back-link {font-size:12px;line-height:1.6;color:var(--muted);padding-block:10px;display:inline-flex}
.resource-grid {display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0 38px}
.resource-card {border:1px solid var(--line);border-radius:15px;background:white;padding:25px;display:flex;flex-direction:column;gap:20px;transition:background .18s}
.resource-card:hover {background:#f3f1fc}
.resource-card>.icon {color:var(--accent);width:25px;height:25px}
.resource-card strong {font-size:18px;font-weight:550;line-height:1.5}
.resource-card>span {font-size:12px;color:var(--muted);line-height:1.6}
section[id],main[id] {scroll-margin-top:100px}
html[lang^=zh] .hero h1 {font-size:clamp(50px,5.2vw,68px);letter-spacing:-.05em;line-height:1.2}
html[lang^=zh] h2 {letter-spacing:-.035em;line-height:1.3}
html[lang^=zh] .hero-intro {max-width:650px;line-height:1.7}
html[lang^=zh] .moment blockquote {font-size:26px;line-height:1.6}
/* Compact desktop hero: keep the value proposition and the complete app in one view. */
@media(min-width:1000px) {
 .hero{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:40px;align-items:center;padding:48px max(40px,calc((100vw - 1280px)/2)) 44px}
 .hero:before{inset:0;background:radial-gradient(ellipse at 75% 55%,#e9e4fb 0%,#f0eef9 24%,transparent 62%)}
 .hero-copy.wrap{width:100%;padding:0;text-align:left}
 .hero h1{font-size:clamp(48px,4.35vw,64px);line-height:1.08}
 .hero-intro{margin:20px 0 0;max-width:460px;font-size:17px;line-height:1.65}
 .hero-actions{justify-content:flex-start;margin-top:24px;gap:10px}
 .hero-actions .button{padding:13px 18px;font-size:13px;min-height:48px}
 .product-stage.wrap{width:100%;max-width:none;margin:0}
 .product-stage figcaption{text-align:left}
 html[lang^=zh] .hero h1{font-size:clamp(48px,4.25vw,62px);line-height:1.2}
 html[lang^=zh] .hero-intro{line-height:1.75}
}
@media(max-width:1100px) {
  .wrap{width:calc(100% - 64px)}.header-inner{gap:20px}.desktop-nav{gap:20px;font-size:12px}.header-end{gap:12px}.brand{font-size:19px}.section{padding-block:60px}.workflow,.phone-grid,.faq{gap:42px}.phone-shell{width:210px;margin-right:65px}.phone-library{width:175px}.phone-gallery{height:500px}.phone-point p{font-size:14px}.footer-links{gap:18px}.privacy-grid{gap:30px}.cue-display{padding:34px}.moment{padding:34px}.cue-copy p{font-size:22px}
}
@media(max-width:800px) {
  .desktop-nav{gap:15px}.header-end{gap:8px}.header-cta{display:none}.section-heading{gap:35px}.section-heading>p{max-width:300px;font-size:15px}.hero-copy{padding-top:36px}.hero-intro{font-size:17px;max-width:560px}.workflow{gap:40px}.phone-grid{grid-template-columns:1fr;gap:25px}.phone-copy{max-width:610px}.phone-copy>.section-intro{max-width:560px}.phone-points{grid-template-columns:repeat(3,1fr);gap:24px}.phone-point{grid-template-columns:1fr;gap:12px}.phone-point h3{font-size:15px}.phone-point p{font-size:14px}.phone-gallery{max-width:460px;width:100%;height:580px;margin:auto}.phone-shell{width:225px;margin-right:105px}.phone-library{width:200px;right:10px}.privacy-grid{gap:25px}.privacy-grid h3{font-size:18px}.privacy-grid p{font-size:15px}.platform-card{padding:27px}.platform-card h3{font-size:21px}.faq{gap:45px}.footer-top{flex-direction:column;gap:20px}.footer-links{justify-content:flex-start}.cue-copy p{font-size:21px}.moment blockquote{font-size:25px}.moment,.cue-display{padding:28px}.subpage h1{font-size:44px}
}
@media(max-width:680px) {
  .wrap{width:calc(100% - 40px)}.header-inner{height:64px;gap:10px}.brand{font-size:18px;gap:8px}.brand img{width:29px;height:29px}.desktop-nav{display:none}.header-end{gap:9px}.mobile-navigation{display:block}.menu-button{list-style:none;display:flex;align-items:center;justify-content:center;width:38px;height:42px;border-radius:8px;cursor:pointer}.menu-button:hover,.mobile-navigation[open] .menu-button{background:var(--subtle)}.mobile-panel{position:absolute;top:calc(100% + 8px);right:0;background:white;border:1px solid var(--line);border-radius:15px;padding:9px;width:min(340px,calc(100vw - 40px));box-shadow:0 20px 50px #20222d14;z-index:60;display:flex;flex-direction:column}.mobile-panel a{padding:15px 14px;font-size:14px;line-height:1.6;border-radius:9px}.mobile-panel a:hover{background:var(--subtle)}.mobile-panel .mobile-cta{background:var(--accent);color:white;display:flex;justify-content:space-between;align-items:center;margin:7px}.mobile-panel .mobile-cta:hover{background:var(--accent-hover)}.language-trigger{font-size:11px;gap:6px}.language-trigger>.icon:first-child{display:none}.language-panel{right:-10px;top:calc(100% + 9px)}.hero-copy{padding-top:30px;padding-bottom:26px}.hero h1{font-size:clamp(40px,10.2vw,60px);letter-spacing:-.055em;line-height:1.08}.hero-intro{font-size:15px;line-height:1.8;max-width:430px;margin-top:18px}.hero-actions{margin-top:20px;gap:9px}.button{font-size:12px;min-height:48px;padding:12px 17px;gap:9px;border-radius:9px}.button .icon{width:17px;height:17px}.product-stage{width:calc(100% - 32px)}.product-frame{padding:0;border-radius:11px;box-shadow:0 17px 35px -18px #39315a45}.product-frame img{border-radius:7px}.product-stage figcaption{font-size:11px;margin-top:10px}.hero{padding-bottom:25px}.hero:before{inset:140px 0 0}.section{padding-block:44px}h2{font-size:32px;line-height:1.15;letter-spacing:-.05em}.section-heading{display:block;margin-bottom:28px}.section-heading>p{max-width:440px;font-size:15px;line-height:1.65;margin-top:14px}.demo-tabs{gap:17px;margin-bottom:18px}.demo-tabs button{font-size:11px;min-height:44px;padding-block:10px}.demo-stage{grid-template-columns:1fr;border-radius:14px;min-height:0}.moment{min-height:180px;padding:24px;gap:18px}.moment blockquote{font-size:26px;max-width:400px;line-height:1.4}.context-label,.moment small{font-size:11px}.cue-display{padding:24px;min-height:260px}.cue-header{font-size:11px}.cue-copy h3{font-size:21px;margin:12px 0}.cue-copy p{font-size:21px;line-height:1.5}.cue-controls{font-size:11px}.cue-controls button{font-size:12px}.workflow{grid-template-columns:1fr;gap:26px}.workflow-intro>p{font-size:15px;max-width:400px;margin-top:14px}.workflow-step{gap:17px;padding-block:18px}.workflow-step h3{font-size:19px}.workflow-step p{font-size:15px}.service-note{font-size:12px;margin-left:45px}.phone-grid{gap:30px}.phone-copy>h2{font-size:36px}.phone-copy>.section-intro{font-size:15px;margin-top:16px}.phone-points{grid-template-columns:1fr;gap:18px;margin-top:22px}.phone-point{grid-template-columns:20px 1fr;gap:15px}.phone-point p{font-size:14px}.phone-note{font-size:12px}.phone-gallery{height:535px;max-width:360px}.phone-shell{width:198px;margin-right:85px;border-width:5px;border-radius:32px}.phone-library{width:175px;right:0;border-width:5px;border-radius:29px}.privacy-section .section-heading .text-link{margin-top:18px}.privacy-grid{grid-template-columns:1fr;gap:30px;margin-top:33px}.privacy-grid article{display:grid;grid-template-columns:23px 1fr;column-gap:18px}.privacy-grid article>.icon{width:22px;height:22px;grid-row:1/3;margin:4px 0 0}.privacy-grid h3{font-size:18px;margin-bottom:9px}.privacy-grid p{font-size:15px}.platforms{grid-template-columns:1fr;gap:18px;margin-top:30px}.platform-card{padding:28px}.platform-card h3{font-size:22px;margin-top:23px}.platform-card>p{min-height:0;font-size:14px;margin-bottom:26px}.platform-foot{font-size:11px}.availability-note{font-size:12px}.coming-soon{min-height:48px;font-size:12px}.faq{grid-template-columns:1fr;gap:30px}.faq summary{font-size:14px;padding-block:21px}.faq details p{font-size:13px;margin-right:12px}.site-footer{padding-top:35px}.footer-tag{font-size:12px}.footer-links{gap:1px 20px;font-size:11px}.footer-links a{padding-block:13px}.footer-bottom{font-size:10px;flex-direction:column;gap:6px;margin-top:24px;padding-top:22px}.subpage{padding:42px 0 70px}.subpage h1{font-size:36px;margin-top:24px;line-height:1.2}.subpage .intro{font-size:16px;margin-bottom:30px}.subpage h2{font-size:24px;margin-top:28px}.subpage p{font-size:14px}.resource-grid{grid-template-columns:1fr;gap:14px}.resource-card{gap:17px}.resource-card strong{font-size:18px}html[lang^=zh] .hero h1{font-size:clamp(40px,10.2vw,60px);line-height:1.25;letter-spacing:-.055em}html[lang^=zh] .section h2{font-size:30px;line-height:1.35}html[lang^=zh] .moment blockquote{font-size:24px}
}
@media(prefers-reduced-transparency:reduce){.site-header.is-scrolled{background:var(--paper);backdrop-filter:none}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Dedicated iPhone Duo feature, using native screenshots at their original ratio. */
.phone-links{display:flex;gap:20px;flex-wrap:wrap}
.duo-section{border-bottom:1px solid var(--line);background:#f6f5fa}
.duo-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:48px;align-items:center}
.device-label{display:block;color:var(--accent);font-size:13px;font-weight:600;margin-bottom:14px}
.duo-copy>p{font-size:16px;line-height:1.65;color:var(--muted);max-width:400px;margin:18px 0}
.duo-copy ul{list-style:none;margin:24px 0 0;padding:0;display:grid;gap:13px}
.duo-copy li{display:flex;gap:12px;align-items:center;font-size:14px;line-height:1.6;color:var(--muted)}
.duo-copy li .icon{width:17px;height:17px;color:var(--accent)}
.duo-visual{min-width:0;margin:0}
.duo-gallery{display:grid;grid-template-columns:.48fr 1fr;gap:20px;align-items:center}
.duo-view{margin:0;min-width:0}.duo-view>figcaption{font-size:11px;color:var(--muted);text-align:center;margin-top:12px;line-height:1.5}
.duo-device{width:100%;min-width:0;border:5px solid #20212a;border-radius:30px;overflow:hidden;background:#fff;box-shadow:0 16px 32px -20px #25203960}
.duo-open .duo-device{border-radius:24px}
.duo-device img{width:100%;height:auto}
.duo-visual>figcaption{font-size:11px;line-height:1.6;color:var(--muted);text-align:center;max-width:440px;margin:16px auto 0}
@media(max-width:1000px){.duo-grid{gap:36px}.duo-device{border-radius:23px}.duo-gallery{gap:12px}}
@media(max-width:680px){.duo-grid{grid-template-columns:1fr;gap:28px}.duo-copy>p{font-size:15px;max-width:440px}.duo-copy ul{margin-top:18px}.duo-device{border-width:3px;border-radius:20px}.duo-visual>figcaption{font-size:11px}.phone-links{gap:8px 20px}}

@media(max-width:680px){.duo-open .duo-device{border-radius:16px}.duo-view>figcaption{font-size:10px;margin-top:9px}}