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ease;will-change:transform}.btn-gold{background:var(--gold-grad);color:var(--on-yellow);box-shadow:0 4px 24px #f6d51640}.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 32px #f6d51666}.btn-secondary{background:transparent;color:var(--body);border:1px solid var(--elevated)}.btn-secondary:hover{border-color:var(--muted);transform:translateY(-2px)}.btn-sm{padding:9px 20px;font-size:.85rem}.card{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--r-xl);padding:28px}.glass{background:var(--glass);backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);border:1px solid rgba(255,255,255,.06)}::selection{background:#f6d51647}.site-nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:16px clamp(18px,4vw,44px);transition:background .3s ease,box-shadow .3s ease,padding .3s ease}.site-nav.scrolled{padding:10px clamp(18px,4vw,44px);box-shadow:0 1px #ffffff0d,0 8px 32px #00000073}.nav-logo{font-size:.84rem;font-weight:700;letter-spacing:.1em;color:var(--white)}.nav-right{display:flex;align-items:center;gap:clamp(14px,2.4vw,28px)}.nav-links{display:flex;gap:clamp(14px,2vw,26px);list-style:none}.nav-links a{font-size:.88rem;color:var(--muted-2);transition:color .15s}.nav-links a:hover{color:var(--yellow)}.nav-burger,.nav-scrim,.nav-drawer-cta{display:none}@media(max-width:1024px){.site-nav{padding:12px 16px}.site-nav.scrolled{padding:10px 16px}.nav-logo{font-size:.76rem}.nav-right{gap:8px}.nav-cta{display:none}.lang-toggle button{padding:5px 9px;font-size:.72rem}.nav-burger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;padding:0 8px;flex:0 0 auto;background:transparent;border:0;cursor:pointer;position:relative;z-index:3}.nav-burger span{display:block;width:100%;height:2px;border-radius:2px;background:var(--white);transition:transform .25s ease,opacity .2s ease}.site-nav.menu-open .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}.site-nav.menu-open .nav-burger span:nth-child(2){opacity:0}.site-nav.menu-open .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.nav-links{position:fixed;top:0;right:0;z-index:2;height:100dvh;width:min(78vw,320px);flex-direction:column;align-items:stretch;gap:0;padding:86px 24px 32px;overflow-y:auto;background:var(--surface);border-left:1px solid var(--elevated);box-shadow:-20px 0 60px #00000080;transform:translate(100%);transition:transform .28s cubic-bezier(.4,0,.2,1)}.site-nav.menu-open .nav-links{transform:translate(0)}.nav-links a{display:block;padding:14px 2px;font-size:1rem;border-bottom:1px solid var(--hairline)}.nav-drawer-cta{display:block;margin-top:18px}.nav-drawer-cta a{border-bottom:0;color:var(--yellow);font-weight:700}.nav-scrim{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:1;background:#0000008c;opacity:0;pointer-events:none;transition:opacity .25s ease}.site-nav.menu-open .nav-scrim{opacity:1;pointer-events:auto}}@media(prefers-reduced-motion:reduce){.nav-links,.nav-scrim,.nav-burger span{transition:none}}.lang-toggle{position:relative;display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--elevated);border-radius:var(--r-pill);overflow:hidden}.lang-thumb{position:absolute;top:0;left:0;width:50%;height:100%;background:var(--toggle-accent, var(--yellow));border-radius:var(--r-pill);pointer-events:none;transition:transform .3s cubic-bezier(.4,0,.2,1)}.lang-toggle[data-lang=ja] .lang-thumb{transform:translate(100%)}.lang-toggle button{position:relative;z-index:1;background:transparent;border:0;color:var(--muted-2);font-size:.78rem;font-weight:700;padding:6px 13px;cursor:pointer;transition:color .3s ease}.lang-toggle 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