:root{--font-head:"Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", system-ui, sans-serif;--font-body:var(--font-head);--radius:14px;--shadow-sm:0 10px 26px -20px #0f1e2866;--shadow-md:0 30px 60px -36px #0f1e2873;--sky-page-wash:linear-gradient(180deg, color-mix(in srgb, var(--paper) 24%, transparent) 0, color-mix(in srgb, var(--paper) 54%, transparent) 32rem, color-mix(in srgb, var(--paper) 84%, transparent) 82rem, color-mix(in srgb, var(--paper) 91%, transparent) 100%)}:root,[data-theme=fresh-dramatic]{--paper:#eef5fb;--surface:#fff;--surface-2:#e2eef8;--ink:#13293d;--muted:#5b7184;--line:#d5e4ef;--brand:#1688c7;--brand-deep:#0c6fa8;--on-brand:#fff;--accent:#ff5a4d;--on-accent:#fff;--dark:#102b3c;--on-dark:#e6f2fa}[data-theme=fresh-vivid]{--paper:#eef5fc;--surface:#fff;--surface-2:#e1edfa;--ink:#11243a;--muted:#566884;--line:#d5e4f3;--brand:#0a9fe0;--brand-deep:#0780ba;--on-brand:#fff;--accent:#ff5630;--on-accent:#fff;--dark:#0d2238;--on-dark:#e6f1fb}[data-theme=fresh-energetic]{--paper:#f4f9ea;--surface:#fff;--surface-2:#e9f3d6;--ink:#1f2b15;--muted:#5f6e4f;--line:#e0eccf;--brand:#54ad28;--brand-deep:#41881d;--on-brand:#fff;--accent:#ffb000;--on-accent:#1f2b15;--dark:#193318;--on-dark:#eef6e1}html{scroll-behavior:smooth;background:#cdeeff;min-height:100%}body#top{isolation:isolate;background:0 0;min-height:100%;position:relative;overflow-x:clip}body#top:before,body#top:after{content:"";pointer-events:none;position:fixed}body#top:before{z-index:-2;filter:saturate(1.04)contrast(1.02);will-change:transform;background:#c7e8ff url(/images/site-sky.webp) top/cover no-repeat;animation:34s ease-in-out infinite alternate sky-drift;inset:-7%}body#top:has([data-page-background=interior]):before{background-image:linear-gradient(#cde9ff29,#ebf6ff3d),url(/images/site-interior.webp);background-position:50%}body#top:has([data-page-background=rainbow]):before{background-image:linear-gradient(#e1f2ff14,#e1f2ff29),url(/images/site-rainbow.webp);background-position:52% 0}body#top:has([data-page-background=soft-sky]):before{background-image:url(/images/site-sky-soft.webp);background-position:top}[data-page-background=interior]{--sky-page-wash:linear-gradient(180deg, color-mix(in srgb, var(--paper) 48%, transparent) 0, color-mix(in srgb, var(--paper) 72%, transparent) 36rem, color-mix(in srgb, var(--paper) 91%, transparent) 88rem, color-mix(in srgb, var(--paper) 96%, transparent) 100%)}body#top:after{z-index:-1;background:radial-gradient(circle at 14% 12%,#ffffff4d,#0000 30%),radial-gradient(circle at 82% 24%,#ffffff1f,#0000 22%),linear-gradient(#ffffff03,#cdeeff0f);animation:13s ease-in-out infinite alternate sky-light;inset:0}body#top main>section{animation:.72s cubic-bezier(.22,1,.36,1) section-rise}body#top main>section:nth-of-type(2){animation-delay:70ms}body#top main>section:nth-of-type(3){animation-delay:.14s}body#top main>section:nth-of-type(n+4){animation-delay:.21s}@keyframes sky-drift{0%{transform:translate(-1.5%,-1%)scale(1.06)}to{transform:translate(1.5%,1%)scale(1.1)}}@keyframes sky-light{0%{opacity:.62}to{opacity:.96}}@keyframes section-rise{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}body#top:before,body#top:after,body#top main>section{animation:none}}