:root{--bg:#fbf8f1;--fg:#1f2a24;--muted:#4b5a52;--accent:#1d6b4a;--accent-fg:#fff;--card:#fff;--line:#d9d3c3;--warn-bg:#fff0cc;--warn-fg:#6b4200;--prev:#2b3a8f}
@media (prefers-color-scheme:dark){:root{--bg:#121a16;--fg:#eef3ef;--muted:#b6c4bb;--accent:#58c394;--accent-fg:#06281a;--card:#1b2620;--line:#33443b;--warn-bg:#4a3a10;--warn-fg:#ffe2a0;--prev:#aab4ff}}
*{box-sizing:border-box}
:root{color-scheme:light dark}
a{color:var(--accent)}a:visited{color:var(--accent)}a:focus-visible{outline:3px solid #f59e0b;outline-offset:2px}
html{font-size:112.5%;-webkit-text-size-adjust:100%}
body.v{margin:0;background:var(--bg);color:var(--fg);font-family:"Hiragino Sans","Noto Sans JP","Yu Gothic UI",system-ui,sans-serif;line-height:1.75}
.vhead{background:var(--accent);color:var(--accent-fg);padding:.6rem 1rem}
.vhead .brand{color:inherit;text-decoration:none;font-weight:700;display:flex;align-items:center;gap:.5rem;min-height:44px}
.vhead .logo{border-radius:6px;background:#fff;object-fit:contain}
.page{max-width:40rem;margin:0 auto;padding:1rem 1rem 3rem}
h1{font-size:1.7rem;line-height:1.35;margin:.6rem 0}
h2{font-size:1.25rem;margin:2rem 0 .6rem;padding-bottom:.3rem;border-bottom:2px solid var(--line)}
h3{font-size:1.1rem;margin:.2rem 0 .4rem}
p{margin:.5rem 0}
.lead{font-size:1.05rem}
.lab{display:inline-block;font-size:.9rem;font-weight:700;color:var(--accent);margin-right:.5rem}
figure{margin:.6rem 0}
figure img,.hero img{display:block;width:100%;height:auto;border-radius:10px;background:var(--line)}
figcaption{font-size:.9rem;color:var(--muted);margin-top:.25rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.9rem 1rem;margin:.8rem 0}
dl{margin:.5rem 0}dl>div{margin:.35rem 0}dt{font-size:.9rem;font-weight:700;color:var(--accent)}dd{margin:0}
.tag{display:inline-block;font-size:.9rem;font-weight:700;background:var(--line);color:var(--fg);border-radius:999px;padding:.05rem .6rem;vertical-align:middle}
.tag-paused{background:var(--warn-bg);color:var(--warn-fg);font-size:1rem;font-weight:800;border:2px solid var(--warn-fg);margin:.3rem 0}
.status{background:var(--warn-bg);color:var(--warn-fg);border-radius:10px;padding:.7rem 1rem;font-weight:700}
.demo-note{background:#e8f1ff;color:#17306b;border-radius:10px;padding:.6rem 1rem;font-size:.9rem}
@media (prefers-color-scheme:dark){.demo-note{background:#1d2b4d;color:#cfe0ff}.preview-banner{color:#0b1038}}
.preview-banner{margin:0;background:var(--prev);color:#fff;padding:.5rem 1rem;font-size:.9rem;text-align:center}
.meta{display:flex;flex-wrap:wrap;gap:.2rem .8rem;font-size:.9rem;color:var(--muted);margin:.7rem 0 0}
.scope{font-weight:700}
details{margin:.6rem 0}
summary{cursor:pointer;min-height:44px;display:flex;align-items:center;gap:.6rem;font-weight:700;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"＋";margin-left:auto;flex:none;font-size:1.2rem;color:var(--accent)}
details[open]>summary::after{content:"－"}
details.qa{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.2rem 1rem}
details.qa>summary{padding:.3rem 0}
.qa-body{padding-bottom:.6rem}
details.more>summary{color:var(--accent);font-weight:700;font-size:.95rem}
.detail{padding:.2rem 0 .4rem}
.obs{border-left:6px solid var(--accent)}
.obs-look{font-size:1.1rem;font-weight:700}
.hint{background:var(--bg);border-radius:8px;padding:.4rem .7rem}
.btn,.play{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:48px;padding:.5rem 1.2rem;border-radius:999px;border:2px solid var(--accent);background:var(--accent);color:var(--accent-fg);font:inherit;font-weight:700;text-decoration:none;cursor:pointer}
.play{background:transparent;color:var(--accent)}
.play[aria-pressed="true"]{background:var(--accent);color:var(--accent-fg)}
.audio-text{font-size:.95rem;color:var(--muted)}
.audio{margin:.6rem 0}
.plist{list-style:none;padding:0;margin:0}
.pcard{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.8rem 1rem;margin:.6rem 0;color:inherit;text-decoration:none}
.pcard:focus-visible,.btn:focus-visible,.play:focus-visible,summary:focus-visible{outline:3px solid #f59e0b;outline-offset:2px}
.pt{display:block;font-weight:700;font-size:1.15rem}.ps{display:block;color:var(--muted)}.pl{display:block;font-size:.9rem;color:var(--muted)}
.back{margin-top:2rem}
.eyes{text-align:center;color:var(--muted);margin-top:2rem}
.empty{color:var(--muted)}
.sitefoot{max-width:40rem;margin:0 auto;padding:1rem 1rem 2rem;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted)}
.sitefoot nav{display:flex;flex-wrap:wrap;gap:.25rem 1rem}
.sitefoot a{color:inherit;display:inline-block;min-height:44px;line-height:44px}
.sitefoot p{margin:.25rem 0 0}
.legal h2{font-size:1.15rem;margin:1.6rem 0 .4rem}.legal ul{padding-left:1.3rem}.legal dt{font-weight:700;margin-top:.8rem}.legal dd{margin:0}
.legal li{margin:.6rem 0}.legal li::marker{color:var(--accent)}
.muted{color:var(--muted);font-size:.9rem}