:root{color-scheme:light;--ink:#201431;--pink:#ff4f73;--pink2:#ff7891;--purple:#8b64e8;--cyan:#55cbd8;--yellow:#ffc84f;--lavender:#f2f0ff;--line:#dedced;font-family:"Arial Rounded MT Bold","Hiragino Maru Gothic ProN","Yu Gothic",ui-sans-serif,system-ui,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#f8f8ff;line-height:1.55}
a{color:inherit}
.skip{position:fixed;z-index:30;top:8px;left:8px;padding:10px 14px;background:#fff;color:var(--ink);transform:translateY(-160%)}
.skip:focus{transform:none}
.site-header{height:106px;padding:0 clamp(24px,5vw,64px);display:flex;align-items:center;justify-content:space-between;background:#fafaff}
.brand{display:flex;align-items:center;gap:18px;text-decoration:none;font-size:clamp(25px,3vw,42px);font-weight:900;letter-spacing:-.04em}
.brand img{filter:hue-rotate(305deg) saturate(2.2)}
nav{display:flex;align-items:center;gap:38px;font-weight:800}
nav a{text-decoration:none;padding:13px 26px;border-radius:999px}
nav .active{background:var(--pink);color:#fff}
.live-shell{padding:14px clamp(18px,7.15vw,110px) 6px;background:#fafaff}
.live-shell iframe{display:block;width:100%;height:535px;min-height:520px;border:0}
.about{min-height:260px;padding:24px clamp(24px,7vw,110px);display:grid;grid-template-columns:150px minmax(280px,1fr) minmax(280px,380px);align-items:center;gap:34px;background:#fff4cf}
.show-mark{width:130px;height:130px;border:3px dashed var(--pink2);border-radius:50%;display:grid;place-items:center;background:#fff}
.show-mark img{width:70px;filter:hue-rotate(45deg) saturate(1.8)}
.label{display:inline-block;margin:0;padding:5px 16px;border-radius:8px;background:var(--purple);color:#fff;font-weight:800}
.show-copy h1{font-size:clamp(30px,4vw,52px);line-height:1.05;margin:12px 0 6px}
.show-copy p{font-size:18px;margin:0 0 12px}
.show-copy strong{display:block;padding-top:12px;border-top:4px dotted var(--pink2);font-size:23px}
.mobile-note{padding:20px 24px;border-radius:18px;background:#ffffffb8}
.mobile-note b{display:inline-block;padding:5px 12px;border-radius:8px;background:var(--purple);color:#fff}
.mobile-note p{margin:12px 0 0;font-size:17px}
footer{height:100px;padding:0 clamp(24px,7vw,110px);display:flex;align-items:center;gap:24px;background:#fafaff}
footer strong{font-size:20px}
footer span{padding-left:24px;border-left:1px solid #8b8498}
footer img{margin-left:auto;filter:hue-rotate(45deg) saturate(1.6)}
a:focus-visible{outline:4px solid var(--cyan);outline-offset:4px}
@media(max-width:900px){.site-header{height:80px}.brand{font-size:24px}.brand img{width:42px;height:42px}nav{gap:6px}nav a{padding:9px 12px;font-size:13px}.live-shell{padding-inline:0}.live-shell iframe{height:1100px;min-height:0}.about{grid-template-columns:100px 1fr}.show-mark{width:92px;height:92px}.show-mark img{width:50px}.mobile-note{grid-column:1/-1}}
@media(max-width:560px){.site-header{padding:0 14px}.brand span{font-size:19px}nav a:not(.active){display:none}.live-shell iframe{height:1050px}.about{grid-template-columns:1fr;padding:28px 20px}.show-mark{display:none}.show-copy h1{font-size:34px}footer{height:auto;min-height:86px;padding:20px;flex-wrap:wrap}footer img{width:30px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}