:root{--ink: #4a4039;--ink-soft: #6b5f54;--ink-faint: #a89a8c;--paper: #fbf3ec;--paper-deep: #f4e8dc;--line: #ecddce;--honey: #e8a13d;--honey-deep: #c9821f;--accent: #e2867e;color-scheme:light dark}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,Hiragino Sans,Yu Gothic UI,Noto Sans JP,system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.9;letter-spacing:.03em;font-size:15px}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.site-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px 20px;max-width:860px;margin:0 auto;padding:22px 20px}.brand{display:flex;align-items:center;gap:10px}.brand .bee{font-size:20px}.brand-name{font-weight:600;font-size:17px;letter-spacing:.04em}.site-nav{display:flex;gap:20px;font-size:13px;color:var(--ink-soft);flex-wrap:wrap;align-items:center}.site-nav a:hover{color:var(--honey-deep)}.site-nav .nav-home{display:inline-flex;align-items:center;color:var(--honey-deep)}.nav-group{position:relative}.nav-parent{background:none;border:none;cursor:pointer;font:inherit;color:var(--ink-soft);letter-spacing:.02em;padding:6px 0;display:inline-flex;align-items:center;gap:5px}.nav-parent .caret{font-size:10px;color:var(--ink-faint)}.nav-group:hover .nav-parent,.nav-group:focus-within .nav-parent{color:var(--honey-deep)}.nav-sub{position:absolute;top:100%;right:0;padding-top:8px;display:none;z-index:30}.nav-group:hover .nav-sub,.nav-group:focus-within .nav-sub{display:block}.nav-sub-inner{background:var(--card);border:1px solid var(--line);border-radius:10px;box-shadow:0 14px 34px -20px #28221a73;padding:8px;min-width:175px;display:flex;flex-direction:column}.nav-sub-inner a{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:7px;white-space:nowrap}.nav-sub-inner a:hover{background:var(--paper-deep);color:var(--ink)}.nav-sub-inner img{width:22px;height:22px;border-radius:6px}.nav-sub-inner .sub-emoji{width:22px;text-align:center;font-size:15px}.nav-sub-inner .sub-coming{display:flex;align-items:center;gap:10px;padding:9px 12px;white-space:nowrap;color:var(--ink-faint);cursor:default}main{max-width:860px;margin:0 auto;padding:24px 20px 80px}.site-footer{border-top:1px solid var(--line);max-width:860px;margin:0 auto;padding:28px 20px 48px;font-size:12px;color:var(--ink-faint)}.niwatoku-link{color:var(--ink-soft);border-bottom:1px solid var(--ink-faint)}.niwatoku-link:hover{color:var(--honey-deep);border-color:var(--honey-deep)}h1{font-size:1.7rem;line-height:1.5;letter-spacing:.04em}.lede{margin-top:14px;color:var(--ink-soft);max-width:40em}.app-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px;margin-top:36px}.app-card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 24px;transition:.2s}.app-card:hover{border-color:var(--honey);transform:translateY(-2px)}.app-card .icon{font-size:30px}.app-card h2,.app-card h3{font-size:16px;margin-top:12px}.app-card p{margin-top:8px;font-size:13px;color:var(--ink-soft)}.app-card .platform{display:inline-block;margin-top:12px;font-size:11px;color:var(--ink-faint);border:1px solid var(--line);border-radius:20px;padding:2px 10px}.app-hero{padding:26px 0 8px}.app-hero .icon{font-size:44px}.app-hero h1{margin-top:10px}.app-hero .tagline{margin-top:10px;color:var(--ink-soft);font-size:16px}.feature-list{margin:30px 0 0;display:grid;gap:12px;padding:0;list-style:none;max-width:44em}.feature-list li{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 18px;font-size:14px}.feature-list li strong{display:block;font-size:14px;margin-bottom:2px}.feature-list li span{color:var(--ink-soft);font-size:13px}.note{margin-top:28px;font-size:12.5px;color:var(--ink-faint)}.links{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}.btn{display:inline-block;border-radius:30px;padding:10px 26px;font-size:13.5px;background:var(--honey);color:#fff;transition:.2s}.btn:hover{background:var(--honey-deep)}.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--ink-soft)}.btn.ghost:hover{border-color:var(--honey);color:var(--honey-deep)}.policy h1{font-size:1.5rem}.policy h2{font-size:1.1rem;margin:28px 0 6px;padding-top:8px;border-top:1px solid var(--line)}.policy .lead{color:var(--ink-soft);margin:8px 0 0}.policy .meta{color:var(--ink-faint);font-size:.9rem;margin:4px 0 24px}.policy p{max-width:46em}.policy ul{margin:6px 0 0 1.4em;max-width:44em}.policy a{color:var(--accent);text-decoration:underline}@media(prefers-color-scheme:dark){:root{--ink: #ede6df;--ink-soft: #cdbfb2;--ink-faint: #9a8d80;--paper: #2a2420;--paper-deep: #352e28;--line: #4a4039}.app-card,.feature-list li{background:#332c26}}