.notfound-page{--color-nf-text:#f4f5f6;--color-nf-muted:#8fa8bb;--color-nf-primary:#3982fd;--color-nf-primary-2:#48d0e8;--color-nf-line:#1e5ae140;color:var(--color-nf-text);font-family:"Helvetica Neue", "Hiragino Kaku Gothic ProN", "Hiragino Sans", var(--font-nf-noto), "Noto Sans JP", Meiryo, sans-serif;font-feature-settings:"palt" 1;-webkit-font-smoothing:antialiased;background:#000;flex:auto;min-height:100dvh;font-size:15px;line-height:1.8;overflow-x:clip}.notfound-container{flex-direction:column;align-items:center;width:100%;max-width:640px;margin-inline:auto;padding:120px 20px 96px;display:flex}.notfound-hero{text-align:center;margin-bottom:44px}.notfound-eyebrow{letter-spacing:.14em;color:var(--color-nf-muted);margin-bottom:40px;font-size:.78rem;font-weight:800;display:block}.notfound-title{z-index:0;font-size:clamp(1.6rem,5vw,2.3rem);font-weight:800;line-height:1.4;display:inline-block;position:relative}.notfound-title[data-en]:before{content:attr(data-en);letter-spacing:.04em;white-space:nowrap;opacity:.35;background:linear-gradient(135deg,#3a1e7a 0%,#1a5068 100%);-webkit-text-fill-color:transparent;color:#0000;z-index:-1;pointer-events:none;-webkit-background-clip:text;background-clip:text;font-size:3.4em;font-style:italic;font-weight:900;position:absolute;top:0;left:50%;transform:translate(-50%,-58%)}.notfound-panel{border:1px solid var(--color-nf-line);text-align:center;background:#ffffff08;border-radius:16px;width:100%;padding:clamp(24px,5vw,44px)}.notfound-lead{padding-bottom:20px;font-size:1.05rem;font-weight:800;line-height:1.6;position:relative}.notfound-lead:after{content:"";background:linear-gradient(90deg,#3982fd 0%,#48d0e8 100%);border-radius:2px;width:48px;height:4px;position:absolute;bottom:0;left:50%;transform:translate(-50%)}.notfound-desc{color:var(--color-nf-muted);margin-top:20px;font-size:.95rem;font-weight:400;line-height:1.85}.notfound-back{justify-content:center;margin-top:48px;display:flex}.notfound-back a{color:#fff;text-align:center;background:linear-gradient(90deg,#3982fd 0%,#48d0e8 100%);border-radius:12px;justify-content:center;align-items:center;min-width:220px;padding:15px 32px;font-size:.95rem;font-weight:800;transition:transform .15s,box-shadow .15s;display:inline-flex;box-shadow:0 6px 24px #3982fd66}.notfound-back a:hover{transform:translateY(-2px);box-shadow:0 8px 28px #3982fd8c}