/* Home（試作 top-prototype.html から） */
html.home,html.home body{height:100%;margin:0}
html.home{scroll-padding-top:env(safe-area-inset-top,0px)}
html.home body{overflow:hidden;line-height:normal}
html.home header{background:none;backdrop-filter:none}
html.home header a{color:var(--ink);font-size:.95rem;letter-spacing:.08em}
html.home header>a{letter-spacing:.3em}
html.home nav a{color:var(--mute);font-size:.85rem}
html.home button:focus-visible{outline:1px solid var(--ink);outline-offset:3px}
#stage{position:fixed;inset:0;overflow:hidden}
#blobs{position:fixed;inset:0;width:100%;height:100%;z-index:0}
.hero,.tag{pointer-events:none}
.hero .hint{margin:2.2rem 0 0;font-size:.8rem;letter-spacing:.4em;color:var(--mute);transition:opacity 1.2s}
.hero .hint.off{opacity:0}
#ink{position:absolute;inset:0;width:100%;height:100%;filter:url(#goo)}
.word{position:absolute;writing-mode:vertical-rl;font-size:1.15rem;letter-spacing:.3em;color:var(--ink);pointer-events:none;z-index:3;white-space:nowrap}
.hero{position:fixed;right:clamp(1.4rem,6vw,5rem);top:24%;text-align:right;z-index:4}
.hero,header>a{font-family:"IBM Plex Sans","Noto Sans JP",sans-serif}
.hero h1{margin:0;font-weight:300;color:var(--title);font-size:clamp(1.9rem,5vw,3.4rem);letter-spacing:.08em;line-height:1.1}
.hero .role{margin:0 0 .7rem;font-size:1rem;letter-spacing:.4em;color:var(--mute)}
.hero .jp{margin:.9rem 0 0;font-family:"Noto Sans JP",sans-serif;font-size:.9rem;letter-spacing:.35em;color:var(--mute)}
/* 最新のお知らせ（左下） */
.tag{position:fixed;left:1.4rem;bottom:calc(1.3rem + env(safe-area-inset-bottom,0px));margin:0;font-size:.85rem;color:var(--mute);letter-spacing:.12em;line-height:1.7;z-index:4;max-width:min(60vw,26rem)}
.tag a{pointer-events:auto;color:var(--mute);transition:color .4s}
.tag a:hover{color:var(--ink)}
.tag .nd{display:block;font-size:.7rem;letter-spacing:.3em}