@font-face{font-family:Rubik;src:url('/assets/rubik-regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:Rubik;src:url('/assets/rubik-bold.ttf') format('truetype');font-weight:700;font-display:swap}
@font-face{font-family:'Rivers Serif';src:url('/assets/noto-serif-sc.ttf') format('truetype');font-weight:400;font-display:swap}
:root {
  --ink:#203e4e; --muted:#4f6876; --blue:#29596d; --pale:#eaf1f5;
  --paper:#fafcfd; --line:#c7d7df; --dark:#254959;
  --light-ink:#f0f5f7; --light-muted:#c5d8e1;
  --serif:'Rivers Serif','Songti SC','SimSun',serif;
  --sans:Rubik,'PingFang SC','Microsoft YaHei',sans-serif;
  --space-2:16px; --space-3:24px; --space-4:32px; --space-6:48px; --space-8:64px;
  --section-space:104px; --radius:14px; --duration:220ms; --ease:cubic-bezier(.16,1,.3,1);
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:32px}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.8 var(--sans);-webkit-font-smoothing:antialiased}
::selection{background:#b9d3dc;color:#173d4e}
a{color:inherit;text-decoration:none;text-underline-offset:6px}
button,input,textarea{color:inherit;font:inherit}
button,a,input,textarea{-webkit-tap-highlight-color:transparent}
button,a{touch-action:manipulation}
button{padding:0;border:0;background:none;cursor:pointer}
button:disabled{cursor:default;opacity:.5}
:focus-visible{outline:3px solid #397e9e;outline-offset:5px}
input,textarea{caret-color:var(--blue)}
svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{text-wrap:balance}
p{text-wrap:pretty}
h1,h2{font-family:var(--serif);font-weight:400}
::-webkit-scrollbar{width:9px}
::-webkit-scrollbar-thumb{background:#9ebac7;border-radius:8px;border:2px solid var(--paper)}
.wrap{width:min(1184px,calc(100% - 112px));margin-inline:auto}
.skip{position:fixed;z-index:99;top:12px;left:12px;padding:8px 20px;background:var(--ink);color:white;transform:translateY(-180%)}
.skip:focus{transform:none}
.site-header{height:106px;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;z-index:2}
.wordmark{font-family:Rubik,sans-serif;font-size:27px;font-weight:700;letter-spacing:-.04em;display:inline-flex;align-items:center;gap:12px}
.wordmark svg{width:30px;height:30px;stroke-width:1.7}
.wordmark-dot{color:#527e8c;margin-left:-10px}
.site-header nav{display:flex;gap:38px;font-size:15px}
.site-header nav a{display:inline-flex;align-items:center;min-height:44px;position:relative}
.site-header nav a:after{content:'';position:absolute;left:0;right:0;bottom:8px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform var(--duration) var(--ease)}
.site-header nav a:hover:after{transform:scaleX(1)}
.header-aside{font-size:13px;color:var(--muted)}
.hero{background:var(--pale);margin-top:-106px;padding-top:178px;overflow:hidden}
.hero-content{display:grid;grid-template-columns:1.6fr 1fr;align-items:end;gap:var(--space-8)}
.hero h1{font-size:clamp(44px,4.8vw,68px);letter-spacing:-.025em;line-height:1.46}
.hero-intro{padding-bottom:11px}
.hero-intro p{color:var(--muted);font-size:16px;line-height:1.95}
.text-link{display:inline-flex;align-items:center;gap:20px;min-height:44px;width:fit-content;font-size:14px;border-bottom:1px solid currentColor;padding-block:5px}
.text-link svg{width:20px;height:20px;transition:transform var(--duration) var(--ease)}
a:hover .text-link svg,a.text-link:hover svg{transform:translate(3px,-2px)}
.hero-intro .text-link{margin-top:22px}
.river-field{height:clamp(240px,22vw,340px);position:relative;margin-top:18px;isolation:isolate}
.river-field canvas{width:100%;height:100%;position:absolute;inset:0}
.field-caption{display:flex;justify-content:space-between;gap:20px;align-items:center;font-size:13px;color:var(--muted);padding-block:6px 14px}
.field-caption>div{display:flex;gap:24px}
.field-caption button{min-height:44px;display:flex;gap:8px;align-items:center;font-size:13px}
.field-caption button:hover{color:var(--ink);text-decoration:underline;text-underline-offset:5px}
.field-caption svg{width:16px;height:16px}
.hero-foot{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);padding-block:19px 22px;font-size:12px;color:var(--muted)}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:36px}
.section-heading h2{font-size:34px;line-height:1.5;letter-spacing:-.02em}
.section-heading>p{font-size:14px;color:var(--muted);padding-bottom:5px}
.work-section{padding-block:var(--section-space) 88px}
.featured-work{display:grid;grid-template-columns:1.18fr 1fr;overflow:hidden;border-radius:var(--radius);background:#e8eff2}
.brief-preview{min-height:476px;background:#d8e5eb;padding:48px 52px 0;display:flex;align-items:end;overflow:hidden}
.preview-paper{width:100%;background:var(--paper);padding:28px 32px 25px;transform:translateY(12px) rotate(-4deg);box-shadow:0 18px 36px #264b5e14;transition:transform 400ms var(--ease)}
.featured-work:hover .preview-paper{transform:translateY(5px) rotate(-2deg)}
.paper-top{display:flex;align-items:center;justify-content:space-between;font-size:12px;margin-bottom:28px;color:var(--muted)}
.paper-top svg{width:23px;height:23px}
.preview-paper>strong{font-family:var(--serif);font-size:27px;font-weight:400}
.paper-rule{border-top:1px solid var(--line);margin-block:20px 24px}
.paper-item{margin-bottom:18px}
.paper-item>span{display:block;font-size:11px;color:var(--muted);margin-bottom:2px}
.paper-item p{font-size:13px}
.paper-footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:14px;margin-top:23px;font-size:12px;color:var(--muted)}
.paper-footer svg{width:18px;height:18px}
.work-description{padding:48px 42px 30px;display:flex;flex-direction:column;justify-content:space-between;gap:40px}
.work-description h3{font:400 38px/1.5 var(--serif);letter-spacing:-.025em}
.work-type{display:block;font-size:12px;color:var(--muted);margin-top:7px}
.work-description p{margin-top:24px;font-size:15px;line-height:1.95;max-width:31ch}
.work-features{margin:20px 0 25px;padding:0;list-style:none;display:flex;gap:6px 16px;flex-wrap:wrap;color:var(--muted);font-size:12px}
.work-features li+li:before{content:'·';margin-right:16px}
.work-description .work-material{font-size:12px;color:var(--muted);margin-top:0;max-width:none}
.site-experiments{display:grid;grid-template-columns:.75fr 1fr 1fr;gap:36px;margin-top:32px;padding-top:26px;border-top:1px solid var(--line)}
.site-experiments>p{font-size:13px;color:var(--muted);line-height:1.9}
.site-experiments>a{display:flex;justify-content:space-between;gap:20px;align-items:start;padding-bottom:10px}
.site-experiments h3{font-family:var(--serif);font-weight:400;font-size:21px}
.site-experiments a p{font-size:12px;color:var(--muted);margin-top:8px}
.site-experiments a>svg{width:19px;height:19px;margin-top:8px;transition:transform var(--duration) var(--ease)}
.site-experiments a:hover>svg{transform:translate(3px,-3px)}
.garden-section{padding-block:78px;background:var(--dark);color:var(--light-ink)}
.garden-layout{display:grid;grid-template-columns:1fr 1.05fr;gap:100px;align-items:center}
.garden-intro h2{font-size:40px;line-height:1.65;letter-spacing:-.02em}
.garden-intro p{color:var(--light-muted);font-size:14px;margin-top:18px}
.topic-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.topic-buttons button{border:1px solid #7998a7;border-radius:999px;min-height:44px;padding:7px 20px;color:var(--light-ink);font-size:13px;transition:color var(--duration),background var(--duration),border-color var(--duration)}
.topic-buttons button[aria-pressed='true']{background:#e8f1f5;border-color:#e8f1f5;color:#203e4e}
.topic-buttons button:hover{border-color:var(--light-ink)}
.garden-section :focus-visible{outline-color:#c7e1ed}
.topic-content{border-top:1px solid #6f8e9d;padding-top:26px}
.topic-content h3{font:400 29px/1.65 var(--serif)}
.topic-content>p{font-size:15px;line-height:2;color:var(--light-muted);margin-top:20px;min-height:90px}
#topic-connection{font-size:12px;display:block;color:var(--light-muted);margin-top:22px}
.topic-content .text-link{margin-top:14px}
.topic-enter{animation:topic-enter 300ms var(--ease)}
@keyframes topic-enter{from{opacity:.65;transform:translateY(5px)}to{opacity:1;transform:none}}
.notes-section{padding-block:var(--section-space)}
.note-list{border-top:1px solid var(--line)}
.note-row{display:grid;grid-template-columns:140px 1fr 24px;align-items:center;gap:32px;padding-block:30px;border-bottom:1px solid var(--line);transition:background var(--duration) var(--ease)}
.note-tag{font-size:12px;color:var(--muted)}
.note-row h3{font:400 25px/1.65 var(--serif)}
.note-row p{font-size:14px;color:var(--muted);margin-top:8px}
.note-row>svg{width:20px;height:20px;transition:transform var(--duration) var(--ease)}
.note-row:hover{background:#eaf1f570}
.note-row:hover>svg{transform:translate(3px,-3px)}
.editorial-note{display:flex;justify-content:space-between;gap:24px;margin-top:22px;font-size:12px;color:var(--muted)}
.editorial-note time{font-variant-numeric:tabular-nums}
.about-section{padding-block:80px;background:var(--pale)}
.about-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:130px}
.about-layout h2{font-size:40px;line-height:1.6;letter-spacing:-.02em}
.about-layout>div:first-child>p{margin-top:24px;font-size:15px;line-height:2;color:var(--muted);max-width:40ch}
.about-layout .text-link{margin-top:24px}
.now-notes{padding-top:12px}
.now-notes>h3{font:400 25px/1.6 var(--serif);padding-bottom:20px;border-bottom:1px solid var(--line)}
.now-notes article{margin-top:22px}
.now-notes h4{font-size:15px;font-weight:400}
.now-notes article p{font-size:13px;line-height:1.95;color:var(--muted);margin-top:7px}
.now-updated{font-size:12px;color:var(--muted);margin-top:24px}
.site-footer{min-height:108px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.site-footer .wordmark{font-size:24px}
.site-footer>span,.site-footer>a:last-child{font-size:12px;color:var(--muted)}
.site-footer>a:last-child{display:inline-flex;align-items:center;gap:12px;min-height:44px}
.site-footer svg{width:17px;height:17px}
/* Reading surfaces use a quiet, comfortable measure. */
.inner-header{height:100px;background:var(--pale)}
.inner-header .wrap{height:100%;display:flex;justify-content:space-between;align-items:center;gap:24px}
.back-link{display:inline-flex;align-items:center;gap:12px;min-height:44px;font-size:14px}
.back-link svg{width:18px;height:18px}
.article{width:min(760px,calc(100% - 48px));margin:72px auto 80px}
.article>h1{font-size:clamp(32px,3.8vw,48px);line-height:1.65;letter-spacing:-.02em}
.article-meta{display:flex;gap:24px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-block:24px 42px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.article-meta time{font-variant-numeric:tabular-nums}
.article-body{font-size:17px;line-height:2.05;overflow-wrap:break-word}
.article-body p+p{margin-top:22px}
.article-body h2{font-size:28px;line-height:1.7;margin-block:48px 18px}
.article-body blockquote{margin:30px 0;padding:24px 28px;background:var(--pale);font:400 22px/1.9 var(--serif)}
.article-bottom{margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}
.article-bottom>p{font-size:14px;color:var(--muted);margin-bottom:12px}
/* The tool puts writing, preview, and export first. */
.tool-main{padding-top:58px;padding-bottom:56px}
.tool-title h1{font-size:46px;line-height:1.5}
.tool-title>p{font-size:16px;color:var(--muted);margin-top:18px;max-width:70ch}
.tool-layout{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start;margin-top:48px}
.brief-form{display:grid;gap:30px}
.brief-form label{display:block;font-size:17px;margin-bottom:12px}
.brief-form label small{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.brief-form input,.brief-form textarea{display:block;width:100%;border:1px solid #99b3c0;border-radius:8px;padding:13px 15px;background:#fff;font-size:15px;line-height:1.8;transition:border-color var(--duration)}
.brief-form input:hover,.brief-form textarea:hover{border-color:var(--blue)}
.brief-form input{min-height:54px}
.brief-form textarea{min-height:125px;resize:vertical}
.brief-form :is(input,textarea)::placeholder{color:#59717d;opacity:1}
.tool-actions{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 20px;border-radius:8px;font-size:14px}
.primary-button{background:var(--ink);color:#fff;gap:15px;transition:background var(--duration)}
.primary-button:hover{background:#315c70}
.primary-button svg{width:18px;height:18px}
.secondary-button{border:1px solid #8faab8;transition:background var(--duration)}
.secondary-button:hover{background:var(--pale)}
.tool-status{min-height:28px;margin-top:-14px;font-size:13px;color:var(--blue)}
.brief-output{position:sticky;top:32px;background:var(--pale);border-radius:var(--radius);padding:34px;overflow-wrap:anywhere}
.brief-output>h2{font-size:28px}
.brief-output>p{font-size:13px;color:var(--muted);margin-top:8px}
.output-title{font:400 23px/1.8 var(--serif);padding-block:26px 22px;border-bottom:1px solid var(--line);white-space:pre-wrap}
.output-section{margin-top:23px}
.output-section>h3{font-size:12px;font-weight:400;color:var(--muted);margin-bottom:7px}
.output-section>p{font-size:14px;line-height:1.9;white-space:pre-wrap}
.brief-output .tool-privacy{border-top:1px solid var(--line);margin-top:28px;padding-top:20px;font-size:12px;line-height:1.9}
.tool-guidance{font-size:14px;color:var(--muted);border-top:1px solid var(--line);margin-top:40px;padding-top:24px}
.tool-guidance .text-link{margin-left:24px}
.mobile-preview-link{display:none}
.error-page{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;padding:50px 24px;text-align:center}
.error-page h1{font-size:42px;line-height:1.6}
.error-page p{color:var(--muted)}
@media(min-width:1600px){.hero{padding-top:196px}.river-field{height:350px}}
@media(max-width:1050px){
  .wrap{width:calc(100% - 64px)}.hero{padding-top:154px}
  .hero-content{gap:40px;grid-template-columns:1.5fr 1fr}.hero h1{font-size:48px}.hero-intro p{font-size:14px}
  .brief-preview{min-height:460px;padding:35px 30px 0}.preview-paper{padding:26px}
  .work-description{padding:34px 28px 28px}.work-description h3{font-size:32px}
  .work-features{display:block;margin-block:15px 20px}.work-features li{display:inline}.work-features li+li:before{margin-inline:10px}
  .site-experiments{gap:28px}.garden-layout{gap:55px}.garden-intro h2,.about-layout h2{font-size:35px}
  .topic-content h3{font-size:26px}.topic-content>p{min-height:120px}
  .note-row{grid-template-columns:110px 1fr 22px;gap:24px}.note-row h3{font-size:23px}
  .about-layout{gap:65px}.tool-layout{gap:36px}.brief-output{padding:28px}
}
@media(max-width:700px){
  :root{--section-space:64px}.wrap{width:calc(100% - 40px)}
  .site-header{height:82px;gap:20px}.wordmark{font-size:23px;gap:8px}.wordmark svg{width:25px;height:25px}
  .header-aside{display:none}.site-header nav{gap:6px;font-size:14px}
  .site-header nav a{padding-inline:8px;min-width:44px;justify-content:center}
  .hero{margin-top:-82px;padding-top:128px}.hero-content{grid-template-columns:1fr;gap:24px}
  .hero h1{font-size:clamp(32px,8.5vw,48px);line-height:1.65;letter-spacing:-.025em}
  .hero-intro{display:flex;justify-content:space-between;align-items:end;gap:16px;padding-bottom:0}
  .hero-intro p{font-size:14px;line-height:1.9}.hero-intro .text-link{flex-shrink:0;font-size:12px;gap:7px;margin-top:0}
  .hero-intro .text-link svg{width:16px;height:16px}.river-field{height:225px;margin-top:12px}
  .field-caption{display:block;font-size:12px;padding-block:0 8px}.field-caption>span{display:block}
  .field-caption>div{justify-content:space-between;gap:20px}.field-caption button{font-size:12px}
  .hero-foot{font-size:11px;padding-block:16px 18px}.pointer-hint{display:none}
  .section-heading{display:block;margin-bottom:26px}.section-heading h2{font-size:28px}
  .section-heading>p{font-size:14px;margin-top:12px;padding:0}.work-section{padding-bottom:56px}
  .featured-work{grid-template-columns:1fr}.brief-preview{min-height:345px;max-height:345px;padding:32px 40px 0}
  .preview-paper{padding:22px 24px;transform:translateY(48px) rotate(-4deg)}
  .featured-work:hover .preview-paper{transform:translateY(44px) rotate(-2deg)}
  .paper-top{margin-bottom:22px;font-size:11px}.preview-paper>strong{font-size:24px}
  .paper-item{margin-bottom:13px}.paper-item p{font-size:12px}.paper-rule{margin-block:15px 18px}
  .work-description{padding:28px;gap:28px}.work-description h3{font-size:32px}
  .work-description p{font-size:15px;margin-top:19px;max-width:none}
  .work-features{font-size:12px;margin-block:18px}.work-features li+li:before{margin-inline:8px}
  .work-description .work-material{font-size:12px}
  .site-experiments{grid-template-columns:1fr;gap:0;margin-top:26px;padding-top:20px}
  .site-experiments>p{font-size:13px;margin-bottom:10px}.site-experiments>p br{display:none}
  .site-experiments>a{padding-block:18px}.site-experiments>a+a{border-top:1px solid var(--line)}
  .site-experiments h3{font-size:22px}.site-experiments a p{font-size:13px;margin-top:5px}
  .garden-section{padding-block:52px}.garden-layout{grid-template-columns:1fr;gap:36px}
  .garden-intro h2{font-size:33px;line-height:1.6}.garden-intro p{font-size:14px}
  .topic-buttons{margin-top:22px;gap:9px}.topic-buttons button{padding-inline:19px;font-size:13px}
  .topic-content{padding-top:24px}.topic-content h3{font-size:25px}
  .topic-content>p{font-size:15px;min-height:120px;margin-top:16px}#topic-connection{margin-top:18px}
  .topic-content .text-link{font-size:14px}
  .note-row{grid-template-columns:1fr 20px;gap:7px 12px;padding-block:25px}
  .note-tag{grid-column:1 / -1;font-size:12px;margin-bottom:4px}.note-row h3{font-size:22px}
  .note-row p{font-size:14px;line-height:1.9}.editorial-note{font-size:12px;flex-wrap:wrap;gap:5px 20px}
  .about-section{padding-block:56px}.about-layout{grid-template-columns:1fr;gap:44px}.about-layout h2{font-size:34px}
  .about-layout>div:first-child>p{font-size:15px;margin-top:22px}.now-notes{padding-top:0}
  .now-notes>h3{font-size:25px}.now-notes article p{font-size:14px}
  .site-footer{min-height:100px;gap:8px 16px;flex-wrap:wrap;padding-block:20px}.site-footer .wordmark{font-size:22px}
  .site-footer>span,.site-footer>a:last-child{font-size:11px}.site-footer>a:last-child{gap:6px}
  .inner-header{height:82px}.article{margin-top:42px}.article>h1{font-size:clamp(29px,7.8vw,40px);line-height:1.65}
  .article-meta{font-size:12px;gap:8px 20px;margin-block:22px 30px;padding-bottom:22px}
  .article-body{font-size:16px}.article-body h2{font-size:25px;margin-top:38px}
  .article-body blockquote{font-size:20px;padding:22px}
  .tool-main{padding-top:38px}.tool-title h1{font-size:36px}.tool-title>p{font-size:15px}.tool-title>p br{display:none}
  .tool-layout{grid-template-columns:1fr;gap:34px;margin-top:32px}.brief-form{gap:25px}
  .brief-form label{font-size:16px}.brief-form label small{font-size:13px}
  .brief-form input,.brief-form textarea{font-size:16px}.brief-output{position:static;padding:26px}
  .mobile-preview-link{display:inline-flex;margin-top:18px}
  .tool-guidance .text-link{margin:12px 0 0}.error-page h1{font-size:33px}
}
@media(max-width:360px){
  .site-header nav{gap:2px}.hero-intro{display:block}.hero-intro .text-link{margin-top:14px;font-size:14px}
  .topic-buttons{gap:7px}.topic-buttons button{padding-inline:16px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
@media print{.site-header,.site-footer,.tool-actions,.back-link{display:none}.article{max-width:none;margin:0}.brief-output{position:static;background:white}.tool-layout{display:block}.brief-form,.tool-privacy{display:none}}