:root{--paper:#fff;--cream:#faf9f6;--ink:#30312f;--copy:#41423f;--muted:#6d6e68;--soft:#85857f;--rule:#e9e8e3;--line:#dcdad2;--link:#655b4f;--serif:'Yu Mincho','Hiragino Mincho ProN','Noto Serif JP',Georgia,serif;--sans:'Hiragino Kaku Gothic ProN','Yu Gothic','Meiryo',system-ui,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.95;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none} a:hover{color:var(--link)}
a:focus-visible,button:focus-visible{outline:2px solid #968774;outline-offset:3px}
.shell{width:min(100% - 56px,1030px);margin:auto}
.top{border-bottom:1px solid var(--rule)}
.top .shell{display:flex;justify-content:space-between;align-items:center;min-height:73px;gap:16px}
.brand{display:inline-flex;align-items:baseline;gap:9px;line-height:1}
.brand strong{font:600 23px/1 Georgia,serif;letter-spacing:.13em}
.brand span{font:400 10px/1 var(--sans);color:#7c7c76;letter-spacing:.16em}
.nav{display:flex;gap:28px;font-size:12px;color:#62645e}
.note-strip{border-bottom:1px solid var(--rule);font-size:11px;color:#888780;padding:7px 0}
.layout{display:grid;grid-template-columns:minmax(0,670px) minmax(180px,224px);justify-content:space-between;gap:58px;padding:34px 0 90px}
.feed{min-width:0}
.blog-intro{margin:0 0 26px;padding:0 0 22px;border-bottom:1px solid var(--rule)}
.blog-intro .eyebrow{color:#818079;font-size:11px;letter-spacing:.095em;margin-bottom:6px}
.blog-intro p{margin:0;color:#63655f;font-size:13px;line-height:1.95}
.entry{padding:15px 0 44px;margin-bottom:35px;border-bottom:1px solid var(--line)}
.entry .meta,.article .meta{font-size:12px;color:#797a74;letter-spacing:.02em;margin:0 0 9px}
.entry h1,.entry h2{font:600 28px/1.65 var(--serif);letter-spacing:.02em;margin:0 0 16px}
.entry h2{font-size:27px}
.entry p,.article p,.about-copy p{font-size:16px;line-height:2.13;color:var(--copy);margin:0 0 20px}
.entry h3{font:600 18px/1.65 var(--sans);margin:28px 0 13px;color:var(--ink)}
.entry .topic-link{color:var(--link);text-decoration:underline;text-underline-offset:3px;text-decoration-color:#c4bfb6}
.entry .read-next{margin:25px 0 0;padding:15px 0 0;border-top:1px dotted #e0ded8;color:#676861;font-size:13px}
.entry .read-next a{display:inline-block;border-bottom:1px solid #a79f91;color:var(--link);font-weight:600}
.entry .compact{padding-top:2px}
.eyebrow-small{font-size:12px;color:#79796f;letter-spacing:.065em}
.page-links{display:flex;gap:20px;flex-wrap:wrap;font-size:13px;color:#6c665c;margin-top:20px}
.page-links a{text-decoration:underline;text-underline-offset:4px;text-decoration-color:#b7b2aa}
.sidebar{padding-top:7px;font-size:13px}
.sidebox{border-bottom:1px solid var(--rule);padding:0 0 25px;margin-bottom:26px}
.sidebox h2{font:600 15px/1.5 var(--serif);margin:0 0 10px;color:var(--ink)}
.sidebox p{font-size:12.5px;line-height:2;color:#696a65;margin:0 0 12px}
.sidebox a{color:#555751;font-size:12.5px}
.side-links a{display:block;padding:6px 0;border-bottom:1px solid #f0efeb}
.side-links a:last-child{border:0}
.tiny-ivory{padding:17px 16px 16px;background:var(--cream);border:0}
.tiny-ivory h2{font-size:14px}
.page-title{font:600 30px/1.6 var(--serif);margin:10px 0 12px}
.page-lead{color:#666760;font-size:15px;margin:0 0 24px}
.crumbs{font-size:12px;color:#7d7e76;margin:4px 0 23px}
.article .title{font:600 clamp(26px,2.7vw,33px)/1.65 var(--serif);margin:0 0 16px;letter-spacing:.018em}
.article .lead{font-size:16px;color:#60635c;padding-bottom:23px;margin-bottom:26px;border-bottom:1px solid var(--rule)}
.article h2{font:600 23px/1.65 var(--serif);margin:39px 0 17px}
.article h3{font:600 18px/1.55 var(--sans);margin:26px 0 14px}
.article .notice{padding:15px 21px;margin:25px 0;background:var(--cream);border-left:2px solid #b9b4a9;font-size:14px;line-height:1.9}
.article .notice strong{display:block;margin-bottom:8px}
.article .notice ul{padding-left:20px;margin:0}
.article .related{border-top:1px solid var(--line);margin-top:48px;padding-top:20px}
.article .related h2{font-size:19px;margin:0 0 10px}
.article .related a{display:block;font-size:14px;border-bottom:1px solid var(--rule);padding:10px 0}
.article .article-disclosure{font-size:13px;line-height:1.9;color:#666861;border-top:1px solid var(--rule);margin-top:33px;padding-top:17px}
.about-copy{max-width:660px}
.about-copy h2{font:600 20px/1.6 var(--serif);margin:35px 0 15px}
.category-list{margin:18px 0 32px}
.category-list a{display:block;border-bottom:1px solid var(--rule);padding:20px 0}
.category-list h2{font:600 20px/1.7 var(--serif);margin:0 0 4px}
.category-list p{font-size:14px;color:#666861;margin:0}
.footer{background:var(--cream);border-top:1px solid var(--rule);padding:24px 0 28px;color:#666761;font-size:12px}
.footer .shell{display:flex;justify-content:space-between;gap:20px}
.footer a{text-decoration:underline;text-underline-offset:4px;text-decoration-color:#bbb5ad}
@media(max-width:800px){.shell{width:min(100% - 42px,700px)}.layout{display:block;padding:27px 0 65px}.sidebar{display:none}.top .shell{min-height:82px;flex-direction:column;align-items:flex-start;justify-content:center;gap:10px;padding-top:12px;padding-bottom:12px}.nav{gap:23px;font-size:12px;white-space:nowrap}.nav .hide-small{display:none}.brand strong{font-size:19px}.brand span{font-size:9px}.entry h1,.entry h2{font-size:25px}.entry p,.article p,.about-copy p{font-size:16px;line-height:2.04}.entry h3{font-size:17px}.entry{padding:11px 0 35px;margin-bottom:28px}.blog-intro{margin-bottom:17px}.footer .shell{flex-direction:column;gap:4px}.article .title{font-size:26px}.article h2{font-size:21px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* v0.4: append-only content and navigation styles; v0.3 baseline preserved. */
.header-first{display:flex;align-items:center;gap:18px;justify-content:space-between;min-width:0}
.header-apps{display:flex;gap:13px;align-items:center}
.app-badge{display:inline-flex;align-items:center;gap:6px;color:#5f605a;font-size:11px;line-height:1.25;white-space:nowrap}
.app-badge img{width:27px;height:27px;object-fit:contain;border-radius:7px;border:1px solid #eae8e3}
.journal-longform .blog-intro{margin-bottom:30px}
.journal-longform .blog-intro h1{font:600 29px/1.65 var(--serif);letter-spacing:.015em;margin:12px 0 20px;color:var(--ink)}
.journal-longform .blog-intro p{font-size:16px;line-height:2.1;color:var(--copy);margin:0 0 18px}
.journal-section{padding:24px 0 29px;margin:0;border-bottom:1px solid var(--rule)}
.journal-section h2{font:600 25px/1.65 var(--serif);margin:0 0 20px;letter-spacing:.015em}
.journal-section h3{font:600 18px/1.7 var(--sans);margin:27px 0 12px}
.journal-section p{color:var(--copy);font-size:16px;line-height:2.1;margin:0 0 19px}
.journal-section .journal-subheading{font:600 16px/1.7 var(--sans);margin:24px 0 12px}
.journal-section .plain-list{padding:0;margin:15px 0 18px;list-style:none;border-left:2px solid #e8e6de}
.journal-section .plain-list li{margin:0;padding:5px 0 5px 17px;font-size:14px;line-height:1.95}
.journal-section .plain-list li a{color:var(--link);text-decoration:underline;text-underline-offset:4px;text-decoration-color:#c7c3bc}
.media-slot{margin:24px 0 30px;padding:24px 16px;text-align:center;border:1px solid #ecebe6;background:var(--cream);color:#898981;font-size:12px;line-height:1.75}
.media-slot small{display:block;font-size:11px;color:#9a9a93}
.read-hint{font-size:12px;color:#85857f;margin:14px 0 0}
.journal-toc{background:var(--cream);padding:13px 18px;margin:30px 0 10px;font-size:13px;color:var(--copy)}
.journal-toc summary{cursor:pointer;font-weight:600;list-style-position:inside}
.journal-toc ul{list-style:none;padding:13px 0 0;margin:0;border-top:1px solid #e6e4dd;margin-top:13px}
.journal-toc li{padding:4px 0}.journal-toc a{text-decoration:underline;text-underline-offset:3px;text-decoration-color:#b6b0a4}
.feature-mention{font-size:14px;color:#6c6c65;padding:14px 0 0}
.journal-ending{padding:30px 0 22px}.journal-ending h2{font-size:23px}
.app-end{background:var(--cream);padding:16px 20px;margin:15px 0 0}
.app-end p{font-size:13px;line-height:1.8;color:#72736b;margin:0 0 10px}
.app-end .app-links{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.footer .footer-inner{display:flex;justify-content:space-between;gap:35px;flex-wrap:wrap}
.footer .foot-group{display:flex;flex-direction:column;gap:4px;max-width:520px}
.footer .foot-links{display:flex;gap:13px;flex-wrap:wrap;align-items:center}
.footer .foot-placeholder{color:#99978f}
.article-toc{background:var(--cream);padding:14px 18px;margin:25px 0;font-size:14px}.article-toc summary{cursor:pointer}
.article-toc a{color:var(--link);text-decoration:underline;text-underline-offset:4px}
.article-toc ul{list-style:none;padding:0;margin:12px 0 0}.article-toc li{padding:4px 0}
@media(max-width:800px){.header-first{width:100%;}.header-apps{gap:9px}.app-badge span{font-size:10px}.app-badge img{width:24px;height:24px}.nav{gap:18px}.journal-longform .blog-intro h1{font-size:24px}.journal-section h2{font-size:22px}.journal-section p,.journal-longform .blog-intro p{font-size:16px;line-height:2.03}.journal-section{padding:21px 0 24px}.media-slot{margin:20px 0;padding:23px 12px}.footer .footer-inner{flex-direction:column;gap:14px}}
@media(max-width:390px){.app-badge span{display:none}.nav{gap:12px;font-size:11px}}

/* Google公式ダウンロードバッジのみの表示指定。既存のWebアプリ導線には非適用。 */
.app-badge.google-play-badge{display:inline-flex;align-items:center;flex:none;line-height:0}
.app-badge.google-play-badge img{width:auto;height:28px;max-width:none;object-fit:contain;border:0;border-radius:0;box-shadow:none;display:block}
.app-end .app-badge.google-play-badge img{height:36px}
.app-badge.google-play-badge .play-fallback{font-size:12px;line-height:1.4;color:#5f605a}
@media(max-width:800px){.app-badge.google-play-badge img{width:auto;height:28px}}