.tk404-page{--tk404-bg:#f5eddc;--tk404-surface:#faf5e8;--tk404-text:#1a1a1a;--tk404-muted:#6b6b6b;--tk404-primary:#591111;--tk404-primary-hover:#7a2222;--tk404-accent:#ffcf2f;--tk404-border:#e5dfcf;--tk404-font-display:var(--font-noto-serif-jp),Georgia,"Times New Roman",serif;--tk404-font-body:var(--font-geist-sans),system-ui,-apple-system,"Segoe UI",sans-serif;min-height:100dvh;padding:32px 16px calc(32px + env(safe-area-inset-bottom,0px));background:radial-gradient(120% 80% at 50% 0%,#ffcf2f47 0%,#ffcf2f00 60%),var(--tk404-bg);color:var(--tk404-text);font-family:var(--tk404-font-body);-webkit-font-smoothing:antialiased;justify-content:center;align-items:center;display:flex}.tk404-page *{box-sizing:border-box}.tk404-card{text-align:center;background:var(--tk404-surface);border:1px solid var(--tk404-border);border-radius:28px;flex-direction:column;align-items:center;gap:16px;width:100%;max-width:520px;padding:40px 24px 32px;display:flex;box-shadow:0 24px 48px -12px #5911112e}.tk404-logo{width:104px;height:auto}.tk404-code{font-family:var(--tk404-font-display);letter-spacing:-.04em;color:var(--tk404-accent);text-shadow:2px 2px 0 var(--tk404-primary),-2px 2px 0 var(--tk404-primary),2px -2px 0 var(--tk404-primary),-2px -2px 0 var(--tk404-primary);margin:0;font-size:clamp(3.25rem,17vw,5rem);font-weight:700;line-height:.9}.tk404-title{font-family:var(--tk404-font-display);letter-spacing:-.02em;color:var(--tk404-primary);margin:0;font-size:clamp(1.35rem,5.5vw,1.8rem);font-weight:700;line-height:1.25}.tk404-text{max-width:38ch;color:var(--tk404-muted);margin:0;font-size:1rem;line-height:1.6}.tk404-cta{background:var(--tk404-primary);color:#fff;border-radius:99px;justify-content:center;align-items:center;gap:8px;width:100%;max-width:320px;min-height:52px;margin-top:8px;padding:14px 28px;font-size:1rem;font-weight:700;text-decoration:none;transition:background .2s,transform .2s;display:inline-flex;box-shadow:0 8px 24px #59111138}.tk404-cta:hover{background:var(--tk404-primary-hover);transform:translateY(-1px)}.tk404-cta:active{transform:translateY(0)}.tk404-link{min-height:44px;color:var(--tk404-primary);text-underline-offset:4px;align-items:center;font-size:.92rem;font-weight:600;text-decoration:underline;text-decoration-thickness:1px;display:inline-flex}.tk404-link:hover{color:var(--tk404-primary-hover)}.tk404-cta:focus-visible,.tk404-link:focus-visible{outline:3px solid var(--tk404-primary);outline-offset:3px;border-radius:99px}@media (min-width:560px){.tk404-card{gap:18px;padding:48px 40px 40px}.tk404-logo{width:124px}}@media (prefers-reduced-motion:reduce){.tk404-cta{transition:none}.tk404-cta:hover{transform:none}}