@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@600;700;800;900&family=Manrope:wght@400;600;700;800&family=Space+Mono:wght@700&display=swap');

:root{
  --mp-bg:#0c1018; --mp-bg-1:#141a26; --mp-bg-2:#1d2636; --mp-bg-3:#2e3a50;
  --mp-ink:#f6f1e4; --mp-ink-2:#cbc3ad; --mp-ink-3:#9a917c;
  --mp-brand:#f4c04a; --mp-brand-deep:#c99a2a; --mp-brand-ink:#20180a;
  --mp-brand-light:#ffd97a; --mp-amber:#ffd97a;
  --mp-font-body:'Manrope',system-ui,sans-serif; --mp-font-display:'Cinzel','Manrope',serif;
  --mp-font-mono:'Space Mono',ui-monospace,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--mp-bg);color:var(--mp-ink);font-family:var(--mp-font-body);line-height:1.6}
img{max-width:100%;display:block}
a{color:var(--mp-brand-light)}


.go-syms{list-style:none;margin:16px 0;padding:0;display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.go-syms li{background:var(--mp-bg-1);border:1px dashed var(--mp-bg-3);border-radius:14px;padding:14px;text-align:center}
.go-syms img{width:64px;height:64px;margin:0 auto 8px;object-fit:contain}
.go-syms b{display:block;font-family:var(--mp-font-display);font-size:.95rem;color:var(--mp-ink)}
.go-syms span{color:var(--mp-ink-2);font-size:.8rem}
.go-pc{display:grid;gap:16px;grid-template-columns:1fr 1fr;margin:16px 0}
@media(max-width:640px){.go-pc{grid-template-columns:1fr}}
.go-pc>div{background:var(--mp-bg-1);border:1px dashed var(--mp-bg-3);border-radius:16px;padding:18px 20px}
.go-pc h3{margin:0 0 10px;font-size:1.05rem;font-family:var(--mp-font-display)}
.go-pc ul{margin:0;padding-left:0;list-style:none}
.go-pc li{position:relative;padding:4px 0 4px 26px;color:var(--mp-ink-2)}
.go-pc li::before{position:absolute;left:0;top:3px;font-weight:900}
.go-pros li::before{content:"＋";color:var(--mp-amber)}
.go-cons li::before{content:"−";color:#ff9a7a}


.go-demo{position:relative;width:100%;max-width:980px;margin:0 auto;aspect-ratio:16/10;border-radius:14px;overflow:hidden;background:var(--mp-bg-1);border:1px dashed var(--mp-bg-3)}
.go-demo iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@media(max-width:640px){.go-demo{aspect-ratio:3/4}}
.go-demo-note{text-align:center;color:var(--mp-ink-3);font-size:.85rem;margin-top:10px}