:root{color-scheme:light;--paper:#f7f3e8;--ink:#241e29;--soft:#5f535d;--purple:#593082;--line:#d7cdbd;--accent:#ffd467}*{box-sizing:border-box}[hidden]{display:none!important}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic UI",system-ui,sans-serif}img{max-width:100%;display:block}a{color:inherit;text-underline-offset:.22em}.shell{width:min(1200px,calc(100% - 96px));margin-inline:auto}.bar{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-size:1.65rem;font-weight:800;line-height:1;letter-spacing:-.07em}.brand img{border-radius:9px;box-shadow:0 0 0 1px #31203714}nav{display:flex;gap:clamp(14px,3vw,34px);align-items:center;flex-wrap:wrap;font-size:.88rem;font-weight:620}nav a{color:var(--soft);text-decoration:none}nav a:hover{color:var(--purple);text-decoration:underline}
h1,h2,h3,p,figure{margin:0}.hero{display:grid;grid-template-columns:1fr 1.13fr;gap:clamp(26px,5vw,78px);align-items:center;padding-top:clamp(40px,8vw,108px);padding-bottom:27px}.stamp{font-size:.78rem;font-weight:690;letter-spacing:.10em;color:var(--purple);margin-bottom:20px}.hero h1,.features h2,.privacy-note h2{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif CJK JP",Georgia,serif;line-height:1.26;letter-spacing:-.055em;font-size:clamp(2.5rem,5vw,5.1rem);font-weight:700}.hero:lang(en) h1{font-size:clamp(3rem,7vw,7.8rem);line-height:.89;letter-spacing:-.075em}.intro{color:var(--soft);margin:24px 0;max-width:34ch}.jump{display:inline-flex;align-items:center;gap:12px;font-weight:700;text-decoration:none;border-bottom:1px solid;padding-bottom:4px}.jump span{transition:transform .2s}.jump:hover span{transform:translateY(4px)}.hero-frame{padding:11px 11px 4px;background:#fffaf1;box-shadow:0 14px 38px #43372021;transform:rotate(1.3deg);margin:6px 8px 9px 0}.hero-frame img{width:100%;height:auto;aspect-ratio:1.46;object-fit:cover}.hero-frame figcaption{display:flex;justify-content:space-between;gap:10px;padding:6px 1px 2px;color:var(--soft);font-size:.72rem}.release-line{display:flex;justify-content:space-between;gap:15px;border-block:1px solid var(--line);margin-top:18px;padding:13px 0;font-size:.78rem;color:var(--soft)}.release-line b{display:inline-block;background:#9b6b00;width:7px;height:7px;border-radius:50%;margin-right:7px}.features{padding:clamp(60px,10vw,130px) 0;display:grid;grid-template-columns:.92fr 1fr;gap:clamp(20px,7vw,96px)}.features h2,.privacy-note h2{font-size:clamp(2rem,4vw,4.25rem)}.chapters article{display:grid;grid-template-columns:50px 1fr;gap:10px;border-top:1px solid var(--line);padding:20px 0}.chapters article:last-child{border-bottom:1px solid var(--line)}.chapter-index{font-family:Georgia,serif;font-size:1.2rem;color:var(--purple)}.chapters h3{font-size:1.23rem;margin-bottom:4px}.chapters p,.content p{color:var(--soft)}.privacy-note{background:#e9dfef;padding:65px 0 58px}.privacy-note p{max-width:55ch;margin:12px 0}.privacy-note a{color:var(--purple);font-weight:650}.footer{border-top:1px solid var(--line);border-bottom:0;padding:18px 0}.content{width:min(760px,calc(100% - 40px));margin:48px auto 80px}.content h1{font-size:clamp(2.1rem,5vw,3.5rem);line-height:1.22;letter-spacing:-.045em;margin-bottom:15px}.content h2{margin:30px 0 8px}.content p{margin:8px 0}.content details{border-top:1px solid var(--line);padding:12px 0}.content details:last-of-type{border-bottom:1px solid var(--line)}.content summary{cursor:pointer;font-weight:660}.review-note{padding:10px;background:#efe4f4}.skip{position:absolute;left:12px;top:-100px}.skip:focus{top:8px;padding:8px;background:#fff;z-index:1}:focus-visible{outline:3px solid #6c4697;outline-offset:4px}
.support-intro{border-bottom:2px solid var(--ink);padding-bottom:22px;margin-bottom:24px}.contact-form{display:grid;gap:14px;padding:24px 0}.contact-form label{display:grid;gap:6px;font-weight:650}.contact-form select,.contact-form textarea,.contact-form input{font:inherit;padding:10px 12px;background:#fffdf7;color:var(--ink);border:1px solid #a79bab;border-radius:5px;min-height:46px;width:100%}.contact-form textarea{resize:vertical;min-height:155px}.contact-form button,.button{font:inherit;font-weight:700;background:#432762;color:white;min-height:46px;border:0;border-radius:5px;padding:10px 18px;cursor:pointer;justify-self:start}.contact-form button:disabled{opacity:.58;cursor:wait}.contact-note{font-size:.9rem}.contact-error{color:#9a2726!important}.contact-ok{color:#245133!important}.trap{position:absolute;clip-path:inset(50%);width:1px;height:1px;overflow:hidden}.contact-guide{padding-left:12px;border-left:3px solid #a585bf}.turnstile-slot{min-height:12px;max-width:100%}
@media(max-width:760px){.shell{width:calc(100% - 36px)}.bar{min-height:65px;gap:9px}.hero,.features{grid-template-columns:1fr}.hero{gap:26px}.hero-frame{margin-inline:4px}.features{gap:28px}.privacy-note{padding:44px 0}.footer{flex-wrap:wrap}.content{margin-top:32px}}
@media(prefers-reduced-motion:no-preference){.hero-copy{animation:lift .66s cubic-bezier(.22,.61,.36,1) both}.hero-frame{animation:print .85s cubic-bezier(.22,.61,.36,1) .09s both}.reveal-pending{opacity:0;transform:translateY(20px);transition:opacity .55s ease,transform .55s cubic-bezier(.22,.61,.36,1)}.reveal-pending.revealed{opacity:1;transform:none}@keyframes lift{from{opacity:0;transform:translateY(12px)}}@keyframes print{from{opacity:0;transform:translateY(17px) rotate(-1deg)}}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}