:root{--ink:#192d49;--muted:#64758d;--blue:#2478f5;--line:#e5edf7;--paper:#f7faff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,#e6f1ff 0,#f0f3ff 180px,#fff 630px);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit}
a,button{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:5px}
img{display:block;max-width:100%;height:auto}
[hidden]{display:none!important}
.container{width:min(1120px,calc(100% - 64px));margin:auto}
.hero{display:flex;flex-direction:column;align-items:center;text-align:center;padding:48px 0 120px;gap:28px}
.heroBrand{display:flex;align-items:center;gap:14px;font-size:32px;line-height:1.4;letter-spacing:1px;margin:0;font-weight:800;white-space:nowrap}
.heroBrand img{width:56px;height:56px;border-radius:16px}
.heroTagline{font-size:clamp(22px,2.5vw,34px);line-height:1.5;font-weight:750;margin:0;white-space:nowrap;color:#111}
.blueWord{position:relative;display:inline-block;color:var(--blue)}
.blueWord::after{content:"";position:absolute;left:0;right:0;bottom:-.18em;height:.3em;border-top:3px solid #97c8ff;border-radius:50%;transform:rotate(-3deg)}
.heroVisual{position:relative;display:flex;align-items:flex-start;justify-content:center;width:min(100%,460px)}
.phone{position:relative;width:258px;padding:7px;border-radius:38px;background:#fff;border:1px solid #e2e9f2;box-shadow:0 25px 55px #22467420,0 3px 7px #3157790a;overflow:hidden}
.phone img{width:100%;border-radius:30px}
.heroPhone{width:320px;padding:5px;border-radius:25px;box-shadow:0 15px 35px #2246741c}
.heroPhone img{border-radius:20px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:45px;min-height:52px;min-width:220px;padding:0 28px;border:0;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .2s,background .2s}
.primary{background:var(--blue);color:#fff;box-shadow:0 8px 22px #2478f526}
.primary:hover{background:#1468e3;transform:translateY(-2px)}
#downloadApp{box-shadow:0 14px 30px #2478f54d,0 4px 9px #2478f526}
.heroQr{display:none;margin:0;padding:12px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 8px 24px #22467414;text-align:center}
.heroQr img{width:160px;height:160px}
.heroQr figcaption{margin-top:10px;font-size:14px;line-height:1.5;color:var(--ink)}
.hero noscript p{font-size:12px;color:var(--muted)}
.previewSection{background:#fff;overflow:hidden}
.mobileStories{display:grid}
.mobileStory{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:80px;min-height:100svh;padding:90px 0}
.storyArtwork{position:relative;isolation:isolate;display:flex;align-items:flex-start;justify-content:center;height: 490px;padding:0 24px;grid-column:2;grid-row:1}
.storyArtwork::before{content:"";position:absolute;z-index:-1;width:420px;max-width:100%;aspect-ratio:1;border-radius:50%;bottom:0;background:linear-gradient(150deg,#e2efff,#f2f8ff)}
.storyArtwork>img{width:340px;max-width:100%;height:auto;flex-shrink:0;border:6px solid #fff;border-radius:18px;box-shadow:0 15px 35px #2f518d1c}
.storyCopy{grid-column:1;grid-row:1}
.storyCopy h3{font-size:36px;line-height:1.5;margin:0 0 20px;letter-spacing:-.5px}
.storyCopy p{font-size:16px;line-height:2;color:var(--muted);margin:0}
.storyArtwork .fileHighlights{width:300px;left:auto;right:0;top: 200px;bottom:auto}
.videoStory .storyArtwork{grid-column:1;height: 420px;}
.videoStory .storyCopy{grid-column:2}
.videoStory .storyArtwork::before{background:linear-gradient(150deg,#ffe7cc,#fff6eb)}
.storyPlayer{width:400px;max-width:100%;flex-shrink:0;border:5px solid #fff;border-radius:18px;background:#000;overflow:hidden;box-shadow:0 15px 35px #9c603c20}
.storyPlayer img{width:100%}
.storyControls{padding:9px 3px 4px;background:#000}
.storyArtwork .controlHighlights{right:0;bottom:auto;top:220px}
.fileHighlights{position:absolute;left:-65px;right:-40px;bottom:65px;display:grid;gap:12px}
.fileHighlights img{width:100%;border:5px solid #fff;border-radius:13px;background:#fff;box-shadow:0 12px 27px #203e6926}
.fileHighlights img:first-child{transform:rotate(-5deg) translateX(-7px)}
.fileHighlights img:last-child{transform:rotate(4deg) translateX(7px)}
.controlHighlights{position:absolute;right:-45px;bottom:63px;display:flex;align-items:center;gap:8px;padding:10px 13px;border:2px solid #fff;border-radius:15px;background:#121212;box-shadow:0 12px 25px #17171730;transform:rotate(-4deg)}
.controlHighlights img{width:58px;height:auto;border-radius:5px}
.siteFooter{border-top:1px solid var(--line);padding:27px 20px calc(27px + env(safe-area-inset-bottom));text-align:center;font-size:12px;color:var(--muted)}
.siteFooter a:hover{color:var(--blue)}
#downloadNotice{width:min(340px,calc(100% - 40px));padding:26px;border:0;border-radius:20px;color:var(--ink);box-shadow:0 20px 60px #192d4933;text-align:center}
#downloadNotice::backdrop{background:#192d4966}
#downloadNotice h2{font-size:20px;margin:0 0 14px}
#downloadNotice p{font-size:14px;line-height:1.8;color:var(--muted);margin:0 0 22px}
#downloadNotice .button{min-width:0;width:100%;min-height:44px;font-size:14px}
@media(min-width:701px){
.hero{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr auto 1fr;min-height:100svh;padding:80px 0 100px;column-gap:80px;text-align:left}
.heroBrand{grid-column:1;grid-row:1;align-self:end}
.heroTagline{grid-column:1;grid-row:2}
.hero #downloadApp,.hero noscript{display:none}
.hero .heroQr{display:block;grid-column:1;grid-row:3;justify-self:start;align-self:start}
.heroVisual{grid-column:2;grid-row:1 / 4;width:100%;align-self:center}
.hero noscript{grid-column:1}
}
@media(max-width:1000px){
.container{width:calc(100% - 48px)}
.hero{column-gap:35px}
.mobileStory{gap:35px}
.storyCopy h3{font-size:29px}
.storyArtwork{padding:0 12px}
.storyArtwork::before{width:340px}
.storyArtwork>img{width:300px}
.storyArtwork .fileHighlights{width:270px}
}
@media(max-width:700px){
.container{width:calc(100% - 40px)}
.hero{padding:32px 0 95px;gap:24px}
.heroBrand{gap:10px;font-size:26px;letter-spacing:0}
.heroBrand img{width:42px;height:42px;border-radius:12px}
.heroTagline{font-size:clamp(20px,5.8vw,24px)}
.heroVisual{width:100%}
.heroPhone{width:244px;border-radius:23px}
.heroPhone img{border-radius:18px}
.button{min-height:50px;min-width:215px;font-size:15px}
.previewSection{background:#fff;overflow:visible}
.mobileStories{display:grid;gap:105px;padding:30px 0 95px}
.mobileStory{display:block;min-height:0;padding:0;text-align:center}
.storyArtwork{position:relative;isolation:isolate;display:flex;align-items:flex-start;justify-content:center;height: 370px;padding:0 35px}
.storyArtwork::before{content:"";position:absolute;z-index:-1;width:290px;max-width:100%;aspect-ratio:1;border-radius:50%;bottom:0;background:linear-gradient(150deg,#e2efff,#f2f8ff)}
.storyArtwork>img{width:100%;max-width:265px;flex-shrink:0;border:4px solid #fff;border-radius:13px;box-shadow:0 10px 24px #2f518d13}
.storyBadge{position:absolute;right:15px;bottom:26px;display:grid;place-items:center;width:50px;height:50px;border:2px solid #fff;border-radius:15px;font-size:34px;line-height:1;color:#fff;box-shadow:0 7px 15px #456eba25;transform:rotate(9deg);background:linear-gradient(145deg,#92c8ff,#4089ef)}
.storyBadge svg{width:31px;height:31px}
.storyCopy{padding:28px 0 0}
.storyArtwork .fileHighlights{width:min(230px,76%);left:auto;right:12px;top: 155px;bottom:auto;gap:8px}
.storyArtwork .fileHighlights img{border-width:4px}
.storyArtwork .fileHighlights img:first-child{transform:rotate(-5deg)}
.storyArtwork .fileHighlights img:last-child{transform:rotate(4deg)}
.storyArtwork .controlHighlights{right:0;bottom:auto;top:160px;gap:8px;padding:9px 12px}
.storyCopy h3{font-size:22px;line-height:1.5;margin:0 0 11px;letter-spacing:-.5px}
.storyCopy p{font-size:13px;line-height:1.9;color:var(--muted);margin:0}
.filesStory .storyArtwork::before{background:linear-gradient(150deg,#d9f1ec,#f3fbf8)}
.folderBadge{background:linear-gradient(145deg,#82cebd,#39a18d)}
.videoStory .storyArtwork{height: 330px;padding:0 18px}
.videoStory .storyArtwork::before{width:300px;background:linear-gradient(150deg,#ffe7cc,#fff6eb)}
.storyPlayer{width:100%;max-width:300px;flex-shrink:0;border:4px solid #fff;border-radius:14px;background:#000;overflow:hidden;box-shadow:0 10px 24px #9c603c20}
.storyPlayer img{width:100%}
.storyControls{padding:9px 3px 4px;background:#000}
.videoBadge{background:linear-gradient(145deg,#ffd794,#f5a04e);font-size:39px;border-color:#fff8ed}
.siteFooter{font-size:11px;padding-top:24px}
}
@media(max-width:360px){
.hero{padding-top:28px;gap:22px}
.heroPhone{width:225px}
.storyArtwork{height:350px;padding:0 25px}
.storyArtwork::before{width:265px}
.storyArtwork .fileHighlights{top:172px}
.storyArtwork .controlHighlights{right:-2px;top:143px;gap:6px}
.controlHighlights img{width:54px}
.storyCopy h3{font-size:20px}
.storyCopy p{font-size:12px}
}
@media(prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
*,*::before,*::after{transition:none!important}
}