@charset "UTF-8";
:root{color-scheme:dark;--bg:#101c29;--panel:#152331;--text:#e9ede4;--muted:#9babb5;--line:#2a3a45;--accent:#acd7bf;--button:#bddcc9;--ink:#182e2b;--moon:#d7dcc2;--serif:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;--sans:Inter,"Segoe UI","Microsoft YaHei",sans-serif}
:root[data-theme=light]{color-scheme:light;--bg:#f3f4ed;--panel:#e9eee6;--text:#203c42;--muted:#566e72;--line:#ced9d0;--accent:#376c58;--button:#366a56;--ink:#fff;--moon:#dadcb2}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.8 var(--sans)}a{color:inherit;text-decoration:none}button{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:6px}::selection{background:#6c9f88;color:white}.skip{position:absolute;top:-100px;left:12px;z-index:20;padding:10px;background:var(--panel)}.skip:focus{top:10px}
.header{max-width:1280px;margin:auto;height:98px;padding:0 42px;display:flex;align-items:center;gap:40px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;white-space:nowrap;font-family:var(--serif);font-size:23px;letter-spacing:3px}.brand span{font:9px var(--sans);letter-spacing:2px;color:var(--muted);margin-left:5px}.header nav{display:flex;gap:29px;margin-left:auto;font-size:13px}.header a:hover{color:var(--accent)}.header-end{display:flex;gap:23px;align-items:center;font-size:12px}#theme{width:34px;height:34px;background:transparent;color:var(--text);border:1px solid var(--line);border-radius:50%;font-size:23px;cursor:pointer}.header .brand span{display:none}main{max-width:1196px;margin:auto}.hero{position:relative;display:grid;grid-template-columns:1.1fr 1fr;align-items:center;min-height:626px;padding:67px 0 62px}.eyebrow{color:var(--accent);font-size:10px;letter-spacing:2.4px;display:flex;align-items:center;gap:10px}.status-dot{display:inline-block;width:6px;height:6px;background:var(--accent);border-radius:50%}.hero h1{font-family:var(--serif);font-size:90px;font-weight:500;letter-spacing:12px;line-height:1.2;margin:25px 0 26px}.hero h1 span{display:block;font-size:35px;letter-spacing:4px;line-height:1.6;margin-top:19px}.hero h1 br{display:none}.intro{font-size:18px;letter-spacing:2px;margin:0 0 9px}.principles{font-size:13px;color:var(--muted);letter-spacing:.5px;white-space:nowrap}.principles i{padding:0 6px;font-style:normal;color:var(--accent)}.actions{display:flex;gap:14px;margin-top:31px}.button{padding:12px 24px;min-width:150px;display:flex;justify-content:space-between;gap:22px;font-size:14px;border-radius:5px;border:1px solid var(--line);transition:transform .2s,background .2s}.button:hover{transform:translateY(-3px)}.primary{background:var(--button);color:var(--ink);border-color:var(--button)}.secondary{background:var(--panel)}.quiet-link{display:inline-block;color:var(--muted);font-size:12px;margin-top:23px}.quiet-link:hover{color:var(--accent)}.hero-art{height:500px;position:relative}.moon{position:absolute;width:223px;height:223px;top:39px;left:175px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#eef0d9,var(--moon));box-shadow:0 0 90px #c6d9b00b}.nightingale{width:100%;height:auto;position:absolute;top:15px;left:0;filter:drop-shadow(0 13px 20px #00101c33)}.orbit{position:absolute;border:1px solid var(--line);border-radius:50%;transform:rotate(-25deg)}.orbit-one{width:390px;height:390px;top:1px;left:80px;opacity:.6}.orbit-two{width:480px;height:480px;top:-44px;left:35px;opacity:.35;border-style:dashed}.star{position:absolute;color:var(--accent)}.star-one{left:68px;top:122px;font-size:19px}.star-two{right:45px;top:105px;font-size:18px}.star-three{left:116px;top:35px;font-size:30px}.art-caption{position:absolute;bottom:0;left:0;width:100%;text-align:center;color:var(--muted);font-family:var(--serif);letter-spacing:2px;font-size:13px}.art-caption small{display:block;font:8px var(--sans);letter-spacing:3px;margin-top:10px}
.features{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:31px 0 33px}.features article{padding:0 28px;border-right:1px solid var(--line)}.features article:first-child{padding-left:0}.features article:last-child{border:0}.feature-number{font-size:10px;letter-spacing:2px;color:var(--muted)}.features h2{font-family:var(--serif);font-size:21px;font-weight:500;letter-spacing:1px;margin:9px 0}.features p{font-size:12px;line-height:2;color:var(--muted);margin:0}.section{padding:87px 0;border-bottom:1px solid var(--line)}.section-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:35px}.section h2{font:500 30px/1.6 var(--serif);letter-spacing:2px;margin:12px 0}.section-heading p,.section p{color:var(--muted);font-size:13px}.section-heading p{margin-bottom:7px}.learn-layout{display:grid;grid-template-columns:1fr 1fr;gap:65px}.formula{padding:29px 33px;background:var(--panel);border-radius:8px;border:1px solid var(--line)}.tiny-label{font-size:11px;letter-spacing:2px;color:var(--muted)}.keys{display:grid;grid-template-columns:repeat(2,1fr) 28px repeat(2,1fr);gap:10px;align-items:center;margin-top:25px;text-align:center}.keys kbd{font:26px var(--sans);border:1px solid var(--line);border-bottom:4px solid var(--line);border-radius:7px;padding:17px 0;color:var(--accent);background:var(--bg)}.keys>span{color:var(--muted)}.key-labels{display:grid;grid-template-columns:calc(50% + 24px) 1fr 1fr;text-align:center;font-size:10px;color:var(--muted);margin:9px 0 21px}.key-labels span:first-child{padding-right:38px}.formula>a{font-size:12px;color:var(--accent)}.steps>a{display:flex;align-items:center;gap:24px;padding:23px 0;border-bottom:1px solid var(--line)}.steps>a:first-child{padding-top:11px}.steps>a:last-child{border-bottom:0}.steps>a>span{font:15px var(--serif);color:var(--accent)}.steps h3{font-size:17px;font-weight:500;letter-spacing:1px;margin:0}.steps p{margin:6px 0 0;font-size:12px}.steps b{margin-left:auto;color:var(--muted);font-weight:400}.steps a:hover h3{color:var(--accent)}.scope{margin-top:27px;color:var(--muted);font-size:12px;max-width:760px}.scope summary{cursor:pointer}.scope a{color:var(--accent)}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.tool-card{padding:27px 29px 25px;border:1px solid var(--line);border-radius:7px;background:var(--panel);transition:transform .2s,border-color .2s}.tool-card:hover{border-color:var(--accent);transform:translateY(-4px)}.tool-glyph{font:32px var(--serif);color:var(--accent)}.tool-card h3{font-weight:500;font-size:18px;margin:18px 0 4px}.tool-card h3 b{float:right;color:var(--muted);font-size:17px;font-weight:400}.tool-card p{margin:0}.download{display:grid;grid-template-columns:1.1fr 1fr;gap:70px}.version{font-size:12px;margin-top:26px;color:var(--accent)}.version .status-dot{margin-right:8px}.divider{padding:0 10px;color:var(--line)}.download-list>a{display:flex;align-items:center;justify-content:space-between;padding:15px 0 16px;border-bottom:1px solid var(--line);font-size:17px}.download-list>a:first-child{padding-top:0}.download-list>a:hover{color:var(--accent)}.download-list small{display:block;font-size:11px;color:var(--muted);margin-top:4px}.download-list b{font-weight:400;color:var(--accent)}.updates{display:grid;grid-template-columns:1.6fr 1fr;gap:70px}.updates h2{font-size:26px}.update-links a{display:flex;justify-content:space-between;font-size:13px;border-bottom:1px solid var(--line);padding:12px 0}.update-links a:hover{color:var(--accent)}footer{max-width:1196px;margin:auto;padding:37px 0 45px;display:flex;align-items:center;justify-content:space-between;gap:22px}footer p,footer>a:last-child{font-size:11px;color:var(--muted)}
@media(min-width:1450px){.hero{min-height:680px}.hero h1{font-size:104px}.hero-art{height:520px}}
@media(max-width:1270px){main,footer{margin-left:40px;margin-right:40px}.header{padding:0 40px}.hero h1 span{font-size:30px}.hero-art{transform:scale(.92);transform-origin:center}.moon{left:30%}.orbit-one{left:10%}.orbit-two{left:0}.principles{white-space:normal}}
@media(max-width:900px){.header{gap:20px}.header nav{gap:19px}.github{display:none}.hero{grid-template-columns:1.2fr 1fr;padding-top:45px;min-height:570px}.hero-art{height:380px}.moon{width:160px;height:160px;top:28px;left:29%}.orbit-one{width:290px;height:290px;left:0}.orbit-two{display:none}.hero h1{font-size:76px}.hero h1 span{font-size:26px;letter-spacing:2px}.hero h1 br{display:block}.intro{font-size:15px;letter-spacing:1px}.art-caption{font-size:10px}.features article{padding:0 18px}.features p br{display:none}.features h2{font-size:18px}.learn-layout,.download{gap:30px}.section h2{font-size:26px}.formula{padding:25px}.tool-card{padding:22px}.updates{gap:30px}.updates h2{font-size:22px}footer .brand span{display:none}}
@media(max-width:640px){.header{height:auto;min-height:78px;flex-wrap:wrap;padding:16px 22px;gap:14px}.brand{font-size:21px}.header-end{margin-left:auto;order:1}.header nav{order:2;width:100%;justify-content:space-between;font-size:12px;border-top:1px solid var(--line);padding-top:13px}.header>.brand{order:0}.header .brand span{display:inline;font-size:8px}main,footer{margin-left:24px;margin-right:24px}.hero{display:flex;flex-direction:column;align-items:stretch;padding:42px 0 30px;min-height:0}.hero h1{font-size:78px;margin-top:23px}.hero h1 span{font-size:26px}.hero h1 br{display:none}.eyebrow{font-size:9px}.intro{font-size:16px}.principles{font-size:11px;line-height:2.1}.principles i{padding:0 3px}.actions{gap:10px}.button{min-width:0;padding:11px 21px}.hero-art{height:350px;max-width:380px;width:100%;margin:12px auto 0;transform:scale(.9)}.moon{width:165px;height:165px;left:36%;top:18px}.orbit-one{width:310px;height:310px;left:12%}.nightingale{top:0}.art-caption{bottom:0;font-size:11px}.star-one{top:80px;left:45px}.star-two{top:40px;right:15px}.features{grid-template-columns:1fr 1fr;padding:0}.features article{padding:24px 0!important;border:0}.features article:nth-child(even){padding-left:22px!important;border-left:1px solid var(--line)}.features article:nth-child(-n+2){border-bottom:1px solid var(--line)}.features h2{font-size:18px}.features p{font-size:11px;padding-right:12px}.section{padding:50px 0}.section-heading{display:block;margin-bottom:26px}.section h2{font-size:24px;letter-spacing:1px}.section-heading p{font-size:12px}.learn-layout,.download,.updates{grid-template-columns:1fr;gap:25px}.keys kbd{padding:16px 0}.steps>a{padding:20px 0}.tool-grid{grid-template-columns:1fr;gap:13px}.tool-card{position:relative;padding:20px 22px 20px 80px}.tool-glyph{position:absolute;left:24px;top:22px}.tool-card h3{margin:0 0 5px}.tool-card p{font-size:12px}.download-list{margin-top:12px}.updates h2{font-size:23px}.updates .eyebrow{font-size:8px;letter-spacing:1.2px}footer{flex-wrap:wrap;justify-content:start;padding:30px 0;gap:12px 25px}footer p{margin:0}footer>a:last-child{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Keep decorative orbits inside the illustration on narrow screens. */
@media(max-width:640px){.hero-art{overflow:hidden}}

@media(min-width:641px) and (max-width:1270px){.orbit-two{display:none}}

/* Original character artwork, framed to retain its pale background and full silhouette. */
.hero-art.character-art{height:auto;margin:0 0 0 38px;transform:none;max-width:450px;justify-self:end;width:100%}
.character-frame{padding:12px;background:#faf9f5;border:1px solid #c9ac7955;border-radius:46% 46% 10px 10px;overflow:hidden;box-shadow:0 22px 65px #0002}
.character-frame img{display:block;width:100%;height:490px;object-fit:contain;border-radius:46% 46% 0 0}
.character-art figcaption{text-align:center;font:13px/1.8 var(--serif);color:var(--muted);letter-spacing:2px;margin-top:16px}
.character-art figcaption small{display:block;font:9px/2 var(--sans);letter-spacing:3px;color:#c5aa77;margin-top:4px}
.practice-companion{display:flex;align-items:center;gap:20px;padding:0 0 14px;border-bottom:1px solid var(--line)}
.practice-companion img{width:92px;height:92px;object-fit:contain;border-radius:18px;background:#fff;flex-shrink:0}
.practice-companion p{font-family:var(--serif);font-size:15px;margin:0;line-height:1.9;color:var(--text)}
.update-portrait{display:block;width:76px;height:76px;object-fit:cover;border-radius:50%;border:1px solid #c5aa7780;margin-bottom:20px}
@media(max-width:900px){.hero-art.character-art{margin-left:15px}.character-frame img{height:410px}.character-frame{padding:8px}}
@media(max-width:640px){.hero-art.character-art{margin:32px auto 0;max-width:330px;overflow:visible}.character-frame img{height:auto;aspect-ratio:3/4}.character-art figcaption{font-size:11px}.practice-companion img{width:78px;height:78px}}

/* Author articles: retain a simple empty state until the first essay is ready. */
.author-section{display:grid;grid-template-columns:1fr 1.3fr;gap:50px;align-items:center}
.author-section h2{margin-top:0}
.author-entry{display:block;padding:28px 30px;border:1px solid var(--line);border-radius:8px;background:var(--panel)}.author-entry:hover{border-color:var(--accent)}.author-entry>span{font-size:14px;color:var(--muted)}.author-entry h3{font-size:25px;font-weight:500;margin:12px 0}.author-entry h3 b{float:right;font-weight:400;color:var(--accent)}.author-entry strong{display:block;margin-top:20px;color:var(--accent);font-size:15px;font-weight:500}
@media(max-width:640px){.author-section{grid-template-columns:1fr;gap:18px}.author-empty{padding:22px}.header nav{gap:10px;flex-wrap:wrap}}

footer .community{font-size:16px;color:var(--text);line-height:1.8}footer .community strong{color:var(--accent);white-space:nowrap}