:root{--saffron:#D99A1E;--saffron-d:#9A6A0B;--stone:#6B6862;--ink:#34322E;--beige:#EDE3D0;--ivory:#FAF6EE}
html{scroll-behavior:smooth}
body{font-family:'Zen Kaku Gothic New','Noto Sans JP',system-ui,sans-serif;background:var(--ivory);color:var(--ink);line-height:1.9;-webkit-font-smoothing:antialiased}
h1,h2,h3,.serif{font-family:'Shippori Mincho','Noto Serif JP',serif;letter-spacing:.04em}
.pebble{border-radius:58% 42% 52% 48%/46% 54% 46% 54%}
.pebble-2{border-radius:42% 58% 46% 54%/55% 45% 55% 45%}
.grain{background-image:radial-gradient(rgba(107,104,98,.07) 1px,transparent 1px);background-size:6px 6px}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .9s ease,transform .9s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}
.navlink{position:relative;padding:.25rem 0;transition:color .2s}
.navlink:after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--saffron);transition:width .3s}
.navlink:hover:after,.navlink[aria-current=page]:after{width:100%}
.navlink:hover{color:var(--saffron-d)}
.dd{position:relative}.dd-menu{position:absolute;top:100%;left:-1rem;min-width:15rem;background:#fff;border:1px solid var(--beige);box-shadow:0 18px 40px -20px rgba(0,0,0,.25);padding:.5rem;opacity:0;visibility:hidden;transform:translateY(6px);transition:.25s}
.dd:hover .dd-menu,.dd:focus-within .dd-menu{opacity:1;visibility:visible;transform:none}
.dd-menu a{display:block;padding:.5rem .9rem;font-size:.875rem}.dd-menu a:hover{background:var(--ivory);color:var(--saffron-d)}
.card{transition:transform .4s,box-shadow .4s}.card:hover{transform:translateY(-4px);box-shadow:0 24px 40px -24px rgba(52,50,46,.35)}
.zoom img{transition:transform .8s}.zoom:hover img{transform:scale(1.05)}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.8rem;font-size:.9rem;letter-spacing:.08em;transition:.25s;cursor:pointer;border:1px solid var(--ink)}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:var(--saffron-d);border-color:var(--saffron-d)}
.btn-line{background:transparent;color:var(--ink)}.btn-line:hover{background:var(--ink);color:#fff}
.btn-gold{background:var(--saffron);border-color:var(--saffron);color:#2a2418}.btn-gold:hover{background:#fff}
.kicker{font-size:.75rem;letter-spacing:.3em;color:var(--saffron-d);text-transform:uppercase}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--saffron),transparent)}
.field{width:100%;background:#fff;border:1px solid #d9d0bd;padding:.8rem 1rem;transition:.2s;font:inherit}
.field:focus{outline:none;border-color:var(--saffron);box-shadow:0 0 0 3px rgba(217,154,30,.18)}
.prose-jp h2{font-size:1.4rem;margin:2.6rem 0 .8rem;padding-left:.9rem;border-left:3px solid var(--saffron)}
.prose-jp p,.prose-jp li{color:#4a4741}.prose-jp ul{list-style:disc;padding-left:1.4rem;margin:.6rem 0}
.prose-jp a{color:var(--saffron-d);text-decoration:underline}
.prose-jp table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.95rem}.prose-jp th,.prose-jp td{border:1px solid #ddd3bf;padding:.7rem .9rem;text-align:left;vertical-align:top}.prose-jp th{background:var(--beige);white-space:nowrap}
details{border-bottom:1px solid #ddd3bf}details summary{cursor:pointer;padding:1.1rem 0;list-style:none;display:flex;justify-content:space-between;gap:1rem}
details summary::-webkit-details-marker{display:none}details summary:after{content:"+";color:var(--saffron-d);font-size:1.4rem;line-height:1}details[open] summary:after{content:"–"}
#toasts{position:fixed;right:1rem;bottom:1rem;z-index:100;display:flex;flex-direction:column;gap:.6rem;max-width:calc(100vw - 2rem)}
.toast{background:var(--ink);color:#fff;padding:.9rem 1.2rem;border-left:4px solid var(--saffron);box-shadow:0 12px 30px -10px rgba(0,0,0,.4);animation:tin .4s ease;font-size:.9rem}
.toast.err{border-left-color:#c0392b}.toast.out{opacity:0;transition:.4s}
@keyframes tin{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
#totop{position:fixed;right:1rem;bottom:5rem;opacity:0;pointer-events:none;transition:.3s;z-index:40}#totop.show{opacity:1;pointer-events:auto}