:root{
  --paper:#f8f7f2;
  --white:#fffefa;
  --ink:#1c1c1a;
  --body:#494842;
  --muted:#68665f;
  --line:#deddd5;
  --accent:#ae5f49;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  --wrap:min(1280px,calc(100% - clamp(40px,7vw,112px)));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,select{font:inherit;color:inherit}
button{cursor:pointer}
[hidden]{display:none!important}
::selection{background:#dbc3b4;color:var(--ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:400;text-wrap:balance}
.wrap{width:var(--wrap);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}
.skip-link{position:fixed;z-index:100;top:10px;left:10px;padding:10px 16px;background:var(--ink);color:#fff;transform:translateY(-160%)}
.skip-link:focus{transform:translateY(0)}

@view-transition{navigation:auto}
::view-transition-old(root){animation:page-out .16s ease-out both}
::view-transition-new(root){animation:page-in .28s cubic-bezier(.16,1,.3,1) both}
@keyframes page-out{to{opacity:0}}
@keyframes page-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.site-header{position:sticky;top:0;z-index:30;background:var(--paper);border-bottom:1px solid var(--line);view-transition-name:site-header}
.header-inner{height:72px;display:flex;align-items:center;gap:clamp(24px,3vw,48px)}
.brand{font-family:var(--sans);font-size:26px;font-weight:600;line-height:1;letter-spacing:-.02em;white-space:nowrap}
.brand span{color:var(--accent)}
.primary-nav{display:flex;align-items:center;gap:clamp(18px,2vw,31px);margin-left:auto;font-size:13px;color:var(--body)}
.primary-nav a,.header-signin{white-space:nowrap}
.primary-nav a[aria-current="page"]{color:var(--ink);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:7px}
.primary-nav a:hover,.header-signin:hover,.text-link:hover,.hero-meta a:hover,.footer a:hover{color:var(--accent)}
.mobile-link{display:none}
.header-actions{display:flex;align-items:center;gap:20px;font-size:12.5px}
.header-signin{color:var(--body);max-width:160px;overflow:hidden;text-overflow:ellipsis}
.mobile-link[data-account-link]{overflow:hidden;text-overflow:ellipsis}
.language{position:relative;display:flex;align-items:center}
.language::after{content:"";position:absolute;right:3px;top:50%;width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:translateY(-70%) rotate(45deg);pointer-events:none}
.language select{border:0;background:transparent;appearance:none;padding:8px 17px 8px 4px;cursor:pointer;font-size:12px;font-weight:600}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 21px;border:1px solid transparent;border-radius:7px;font-size:13px;font-weight:600;line-height:1.3;text-align:center;transition:background-color .2s,border-color .2s,color .2s}
.button-dark{background:var(--ink);color:#fffefa}
.button-dark:hover{background:#41403b}
.button-light{background:#f1f0e9;border-color:#d4d2c9;color:var(--ink)}
.button-light:hover{background:#e8e6dc;border-color:#bcb9af}
.header-download{min-height:38px;padding:9px 17px}
.menu-toggle{display:none;flex-direction:column;justify-content:center;gap:6px;width:40px;height:40px;padding:10px;border:1px solid var(--line);border-radius:6px;background:transparent}
.menu-toggle span{display:block;width:18px;height:1px;background:var(--ink)}
.text-link{display:inline-block;padding-bottom:2px;border-bottom:1px solid currentColor;font-size:13px;font-weight:600;line-height:1.5;text-underline-offset:4px}

.hero{overflow:hidden;padding:clamp(45px,4vw,58px) 0 88px}
.hero-copy{max-width:850px;text-align:center}
.hero h1{font-family:var(--sans);font-size:clamp(58px,6.5vw,96px);font-weight:600;line-height:1.1;letter-spacing:-.025em}
.hero-lead{max-width:670px;margin:18px auto 0;color:var(--body);font-size:clamp(16px,1.35vw,19px);line-height:1.65}
.hero-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:20px}
.hero-meta{display:flex;align-items:center;justify-content:center;gap:11px;flex-wrap:wrap;margin-top:12px;color:var(--muted);font-size:12px}
.hero-meta a{text-decoration:underline;text-underline-offset:3px}
.task-showcase{margin-top:clamp(38px,4vw,54px);scroll-margin-top:90px}
.stage-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:16px}
.stage-heading p{font-family:var(--sans);font-size:clamp(25px,2.5vw,35px);font-weight:500;line-height:1.25}
.stage-heading>span{color:var(--muted);font-size:11px;text-align:right}
.task-tabs{display:none;gap:6px;margin-bottom:12px}
.js .task-tabs{display:flex}
.task-tab{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:48px;min-width:155px;padding:10px 17px;border:1px solid #d8d6cd;border-radius:6px;background:transparent;font-size:12px;font-weight:600;text-align:left;transition:background-color .2s,border-color .2s,color .2s}
.task-tab:hover{border-color:#8c887d}
.task-tab[aria-selected="true"]{background:var(--ink);border-color:var(--ink);color:var(--white)}
.tab-indicator{display:block;flex:none;width:7px;height:7px;border:1px solid currentColor;border-radius:50%}
.task-tab[aria-selected="true"] .tab-indicator{background:currentColor}
.task-board{position:relative;isolation:isolate;overflow:hidden;border:1px solid #e0ded4;border-radius:12px;background:#eae9e1}
.task-board::before{content:"";position:absolute;z-index:-1;left:8%;right:8%;top:50%;border-top:1px solid #d2d0c5}
.task-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(170px,.83fr) minmax(0,1fr);align-items:center;gap:clamp(15px,2.6vw,38px);min-height:432px;padding:40px clamp(28px,5vw,74px)}
.task-panel:focus-visible{outline-offset:-4px}
.task-panel+.task-panel{border-top:1px solid #d6d4c9}
.stage-card{position:relative;min-width:0;min-height:315px;padding:22px;background:var(--white);border:1px solid #dedbd1;border-radius:5px;box-shadow:0 12px 28px rgba(46,43,34,.08)}
.stage-card:first-child{grid-column:1;transform:rotate(-2deg)}
.stage-card:last-child{grid-column:3;transform:rotate(2deg)}
.sheet-top{display:flex;justify-content:space-between;gap:8px;padding-bottom:12px;border-bottom:1px solid #e6e4dc;color:#69665d;font-size:9px;font-weight:600;line-height:1.4;letter-spacing:.04em;text-transform:uppercase}
.sheet-top span:last-child{text-align:right}
.stage-card h3{font-family:var(--sans);font-size:clamp(25px,2.1vw,31px);font-weight:600;line-height:1.2;letter-spacing:-.015em}
.stage-card>p{margin-top:9px;color:var(--body);font-size:11px;line-height:1.55}
.brief-card h3{margin-top:15px}
.sample-visual{position:relative;display:flex;align-items:center;justify-content:center;height:140px;margin-top:14px;overflow:hidden;background:#e8e3d8}
.sample-bag{position:relative;z-index:1;width:68px;height:69px;margin-top:20px;border:1px solid #8e8373;border-radius:3px 3px 9px 9px;background:#c5b8a3;box-shadow:3px 7px 12px rgba(71,59,44,.12)}
.sample-bag span{position:absolute;left:17px;top:-23px;width:32px;height:34px;border:2px solid #8e8373;border-bottom:0;border-radius:20px 20px 0 0}
.sample-orbit{position:absolute;width:160px;height:160px;border:1px solid rgba(104,96,83,.23);border-radius:50%}
.output-card h3{margin-top:20px}
.source-list{margin-top:18px;border-top:1px solid #e6e4dc}
.source-list>div{display:flex;align-items:center;gap:12px;padding:8px 0;border-bottom:1px solid #e6e4dc}
.source-list strong,.source-list small{display:block;line-height:1.3}
.source-list strong{font-size:11px;font-weight:600}
.source-list small{margin-top:3px;color:var(--muted);font-size:10px}
.source-thumb{position:relative;display:grid;flex:none;place-items:center;width:42px;height:39px;background:#e9e4d9}
.source-thumb i{width:17px;height:16px;margin-top:5px;border:1px solid #8e8373;border-radius:1px 1px 4px 4px;background:#c5b8a3}
.source-thumb i::before{content:"";position:absolute;width:8px;height:9px;margin:-7px 0 0 3px;border:1px solid #8e8373;border-bottom:0;border-radius:8px 8px 0 0}
.thumb-two{background:#dfded4}.thumb-two i{background:#aaa998}.thumb-three{background:#e8dcd5}.thumb-three i{background:#bf9d91}
.content-visual{background:#d9ded6}
.content-visual .sample-bag{background:#d7c8ad;transform:rotate(-9deg)}
.content-sun{position:absolute;right:18%;top:17%;width:60px;height:60px;border-radius:50%;background:#c1cbb9}
.content-preview{position:relative;display:flex;align-items:center;justify-content:space-between;min-height:130px;margin-top:18px;padding:18px;overflow:hidden;background:#d6dfd1}
.content-preview>span{position:relative;z-index:2;max-width:120px;font-family:var(--sans);font-size:clamp(22px,2vw,30px);line-height:1.15}
.small-bag{flex:none;transform:rotate(8deg) scale(.8);transform-origin:center}
.publish-visual{justify-content:space-evenly;background:#e6dcd4}
.publish-visual .sample-bag{transform:scale(.8);transform-origin:center}
.post-lines{display:grid;gap:9px;width:32%}
.post-lines i{height:2px;background:#ad9b8e}
.post-lines i:nth-child(2){width:75%}.post-lines i:nth-child(3){width:55%}
.publish-list{list-style:none;margin:24px 0 0;padding:0;border-top:1px solid #e6e4dc}
.publish-list li{position:relative;padding:12px 0 12px 24px;border-bottom:1px solid #e6e4dc;font-size:11px;line-height:1.4}
.publish-list li::before{content:"";position:absolute;left:0;top:14px;width:11px;height:11px;border:1px solid #a6a298;border-radius:50%}
.momo-center{position:absolute;z-index:2;left:50%;top:216px;width:clamp(190px,23%,290px);transform:translate(-50%,-50%);text-align:center}
.momo-button{display:inline-flex;width:100%;flex-direction:column;align-items:center;border:0;background:transparent;padding:0;color:var(--body)}
.momo-button:disabled{cursor:default}
.momo-button:disabled>span{display:none}
.momo-art{display:block;width:100%;height:auto;overflow:visible;transform:translate(var(--momo-x,0px),var(--momo-y,0px)) rotate(var(--momo-tilt,0deg)) scale(var(--momo-scale-x,1),var(--momo-scale-y,1));transition:transform .22s cubic-bezier(.2,.7,.2,1)}
.momo-shape{transform-box:view-box;transform-origin:50% 50%}
.momo-button>span{margin-top:-12px;padding:3px 5px;border-bottom:1px solid #a5a095;font-size:11px;line-height:1.4}
.momo-button:hover>span,.momo-button[data-motion-state="poked"]>span{color:var(--accent);border-color:var(--accent)}
.momo-status{display:block;min-height:17px;margin-top:5px;color:var(--body);font-size:10px;line-height:1.4}

.section{padding:clamp(78px,8vw,120px) 0;scroll-margin-top:72px}
.story{background:var(--white);border-top:1px solid var(--line)}
.story-grid{display:grid;grid-template-columns:.9fr 1fr;gap:clamp(60px,10vw,160px);align-items:start}
.story-intro{position:sticky;top:110px}
.story-intro h2,.download-heading h2{font-family:var(--sans);font-size:clamp(42px,4.6vw,68px);font-weight:600;line-height:1.15;letter-spacing:-.02em}
.story-intro>p,.download-heading p{max-width:500px;margin-top:23px;color:var(--body);font-size:16px;line-height:1.75}
.story-intro .text-link{margin-top:30px}
.story-pages{border-top:1px solid var(--ink)}
.story-page{position:relative;padding:25px 0 30px;border-bottom:1px solid var(--line)}
.story-label{display:block;margin-bottom:13px;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.07em;text-transform:uppercase}
.story-page h3{font-family:var(--sans);font-size:clamp(30px,2.8vw,40px);font-weight:600;line-height:1.2}
.story-page p{max-width:530px;margin-top:12px;color:var(--body);font-size:13px}
.story-page .text-link{margin-top:20px}
.story-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:20px}
.story-tags span{padding:5px 10px;border:1px solid var(--line);border-radius:4px;color:var(--body);font-size:10px;line-height:1.4}

.download-section{background:var(--paper);border-top:1px solid var(--line)}
.download-heading{display:grid;grid-template-columns:1fr 1fr;align-items:end;gap:40px;margin-bottom:38px}
.download-heading p{margin-top:0}
.download-notice{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-bottom:14px;padding:19px 22px;border:1px solid #dedbd1;border-radius:6px;background:#efede5}
.download-notice p{max-width:830px;color:var(--body);font-size:12px}
.download-notice .text-link{flex:none}
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.download-card{display:flex;flex-direction:column;align-items:flex-start;min-height:145px;padding:22px;border:1px solid var(--line);border-radius:6px;background:var(--white);transition:border-color .2s,background-color .2s}
.download-card:hover{border-color:#9d998f;background:#fdfcf7}
.download-platform{font-family:var(--sans);font-size:28px;font-weight:600;line-height:1.2}
.download-meta{margin-top:9px;color:var(--body);font-size:12px}
.download-action{margin-top:auto;padding-top:15px;font-size:12px;font-weight:600;text-decoration:underline;text-underline-offset:4px}
.install-note{max-width:850px;margin:24px 0 0;color:var(--body);font-size:12px}
.install-note code{font-size:11.5px;overflow-wrap:anywhere}
.download-links{display:flex;gap:28px;flex-wrap:wrap;margin-top:18px}
.footer{padding:60px 0 30px;background:var(--white);border-top:1px solid var(--line)}
.footer-main{display:flex;justify-content:space-between;gap:40px}
.footer-main p{margin-top:15px;color:var(--muted);font-size:13px}
.footer nav{display:flex;align-items:start;justify-content:flex-end;gap:16px 26px;flex-wrap:wrap;max-width:700px;color:var(--body);font-size:12px}
.footer-bottom{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;margin-top:50px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
html[lang="zh-CN"] .hero h1{font-size:clamp(45px,5.3vw,78px);line-height:1.2;letter-spacing:0;word-break:keep-all}
html[lang="zh-CN"] .story-intro h2,html[lang="zh-CN"] .download-heading h2{font-size:clamp(35px,3.8vw,56px);line-height:1.25;letter-spacing:0}
html[lang="zh-CN"] .story-page h3,html[lang="zh-CN"] .stage-card h3{line-height:1.25}

@media(max-width:1180px){
  .header-inner{gap:24px}
  .primary-nav{gap:18px}
  .header-actions{gap:14px}
}
@media(max-width:1050px){
  .header-inner{height:auto;min-height:68px;flex-wrap:wrap;gap:0 20px}
  .header-actions{margin-left:auto}
  .primary-nav{order:3;width:100%;margin:0;flex-direction:column;align-items:stretch;gap:0;padding:0 0 14px}
  .primary-nav a{padding:12px 0;border-top:1px solid var(--line);font-size:14px}
  .mobile-link{display:block}
  .js .primary-nav{display:none;position:absolute;top:100%;left:0;width:100%;padding:8px max(20px,4vw) 22px;max-height:calc(100dvh - 68px);overflow-y:auto;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 18px 30px rgba(28,28,26,.08)}
  .js .site-header.menu-open .primary-nav{display:flex}
  .menu-toggle{display:flex}
  .header-signin,.header-download{display:none}
  .task-panel{grid-template-columns:minmax(0,1fr) minmax(150px,.7fr) minmax(0,1fr);padding-inline:28px;gap:15px}
}
@media(max-width:720px){
  :root{--wrap:calc(100% - 40px)}
  .hero{padding:60px 0 70px}
  .hero h1{font-size:clamp(51px,11vw,72px)}
  .hero-lead{margin-top:21px;font-size:15px}
  .hero-actions{margin-top:24px}
  .task-showcase{margin-top:58px}
  .stage-heading{align-items:start;flex-direction:column;gap:6px}
  .stage-heading>span{text-align:left}
  .task-tabs{display:none;gap:5px}
  .task-tab{flex:1;min-width:0;min-height:46px;padding:9px 10px;font-size:11px;gap:5px}
  .task-board::before{top:160px;left:10%;right:10%}
  .task-panel{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px;min-height:0;padding:235px 14px 20px;align-items:stretch}
  .stage-card:first-child{grid-column:1;transform:rotate(-1deg)}
  .stage-card:last-child{grid-column:2;transform:rotate(1deg)}
  .stage-card{min-height:280px;padding:14px}
  .stage-card h3{font-size:24px}
  .sheet-top{font-size:8px}
  .sample-visual{height:105px;margin-top:11px}
  .sample-bag{transform:scale(.8)}
  .content-visual .sample-bag{transform:rotate(-9deg) scale(.8)}
  .sample-orbit{width:120px;height:120px}
  .content-sun{width:42px;height:42px}
  .brief-card h3{margin-top:12px}
  .output-card h3{margin-top:15px}
  .stage-card>p{font-size:10px}
  .source-list{margin-top:12px}
  .source-list>div{gap:7px;padding:7px 0}
  .source-thumb{width:32px;height:32px}
  .source-list strong{font-size:10px}.source-list small{font-size:9px}
  .content-preview{min-height:110px;margin-top:13px;padding:10px}
  .content-preview>span{font-size:22px}
  .content-preview .small-bag{margin-left:-12px;transform:rotate(8deg) scale(.6)}
  .publish-list{margin-top:17px}
  .publish-list li{padding:10px 0 10px 20px;font-size:10px}
  .publish-list li::before{top:12px;width:10px;height:10px}
  .momo-center{top:4px;width:185px;transform:translateX(-50%)}
  .momo-button>span{margin-top:-10px}
  .section{padding:75px 0}
  .story-grid,.download-heading{grid-template-columns:1fr;gap:27px}
  .story-intro{position:static}
  .story-intro h2,.download-heading h2{font-size:clamp(39px,9vw,56px)}
  .story-intro>p,.download-heading p{font-size:15px}
  .download-heading{margin-bottom:30px}
  .download-notice{display:block;padding:18px}
  .download-notice .text-link{margin-top:14px}
  .download-grid{grid-template-columns:1fr;gap:8px}
  .download-card{min-height:115px}
  .footer-main{display:block}
  .footer nav{justify-content:flex-start;margin-top:30px}
}
@media(max-width:420px){
  .hero-actions .button{width:100%}
  .hero-actions{max-width:300px;margin-left:auto;margin-right:auto}
  .task-tab{font-size:10px}
  .tab-indicator{width:6px;height:6px}
  .task-panel{grid-template-columns:minmax(0,1fr);gap:18px}
  .stage-card{min-height:0;padding:20px}
  .stage-card:first-child,.stage-card:last-child{grid-column:1;transform:none}
  .sheet-top{font-size:10px}
  .stage-card h3{font-size:27px}
  .stage-card>p,.publish-list li{font-size:13px}
  .source-list strong{font-size:12px}
  .source-list small{font-size:11px}
  .content-preview>span{font-size:28px}
  .content-preview .small-bag{margin-left:0;transform:rotate(8deg) scale(.8)}
  .footer nav{display:grid;grid-template-columns:1fr 1fr}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  ::view-transition-group(*),::view-transition-old(*),::view-transition-new(*){animation-duration:.01ms!important}
}

.download-page .download-section{min-height:calc(100svh - 72px);border-top:0}
.download-page h1{font-family:var(--sans);font-size:clamp(48px,5.5vw,80px);font-weight:600;line-height:1.15;letter-spacing:-.02em}
html[lang="zh-CN"] .download-page h1{font-size:clamp(40px,5vw,72px);line-height:1.2;letter-spacing:0}