.gauth{--bg:#fff;--bg-soft:#faf9fe;--ink:#16123a;--sub:#5f5b78;--faint:#8a87a8;--line:#e9e7f3;--line-strong:#d9d5ec;--brand:#7c5cfc;--brand-deep:#4f46e5;--grad:linear-gradient(90deg,#4f46e5,#7c5cfc)}.gauth,.gauth *,.gauth :before,.gauth :after{box-sizing:border-box}.gauth{background:var(--bg-soft);color:var(--ink);letter-spacing:.02em;-webkit-font-smoothing:antialiased;flex-direction:column;min-height:100vh;font-family:Noto Sans JP,sans-serif;line-height:1.8;display:flex}.gauth .en{font-family:var(--font-inter),"Noto Sans JP",sans-serif}.gauth a{color:inherit;text-decoration:none}.gauth .wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 28px}.gauth header{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);background:#ffffffd9}.gauth .nav{align-items:center;gap:22px;padding:15px 0;display:flex}.gauth .nav .logo img{height:43px;display:block;transform:translateY(6px)}.gauth .back{color:var(--sub);white-space:nowrap;align-items:center;gap:8px;margin-left:auto;font-size:13px;font-weight:600;transition:color .2s;display:inline-flex}.gauth .back svg{transition:transform .2s}.gauth .back:hover{color:var(--brand-deep)}.gauth .back:hover svg{transform:translate(-2px)}.gauth main{flex:1;justify-content:center;align-items:center;padding:64px 22px;display:flex;position:relative;overflow:hidden}.gauth .deco{pointer-events:none;position:absolute;inset:0}.gauth .deco svg{width:108%;height:220px;position:absolute;bottom:14%;left:-4%;right:-4%}.gauth .card{border:1px solid var(--line);background:#fff;border-radius:24px;width:100%;max-width:420px;padding:44px 40px 38px;animation:.6s cubic-bezier(.2,.8,.3,1) both gauth-rise;position:relative;box-shadow:0 1px 2px #16123a0d,0 24px 60px -18px #16123a1f}@keyframes gauth-rise{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}.gauth .peek{filter:drop-shadow(0 8px 14px #16123a29);height:76px;animation:.7s cubic-bezier(.2,1.2,.3,1) .3s both gauth-peekIn;position:absolute;top:-56px;right:28px}@keyframes gauth-peekIn{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}.gauth .card-eyebrow{font-family:var(--font-inter);letter-spacing:.32em;color:var(--brand-deep);margin-bottom:12px;font-size:10.5px;font-weight:800}.gauth h1{letter-spacing:.04em;margin-bottom:8px;font-size:22px;font-weight:800}.gauth .card-lede{color:var(--sub);margin-bottom:28px;font-size:12.5px}.gauth .field{margin-bottom:14px}.gauth .field label{letter-spacing:.06em;color:var(--sub);margin-bottom:7px;font-size:11.5px;font-weight:700;display:block}.gauth .field input{width:100%;height:50px;color:var(--ink);border:1px solid var(--line-strong);background:#fff;border-radius:13px;padding:0 16px;font-family:inherit;font-size:14px;transition:border-color .2s,box-shadow .2s}.gauth .field input:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3.5px #7c5cfc29}.gauth .field input.err{border-color:#d6455d;box-shadow:0 0 0 3.5px #d6455d1f}.gauth .btn{letter-spacing:.06em;cursor:pointer;-webkit-tap-highlight-color:transparent;border-radius:16px;justify-content:center;align-items:center;gap:8px;font-family:inherit;font-weight:700;transition:transform .12s,box-shadow .14s,filter .15s;display:inline-flex;position:relative}.gauth .btn-primary{color:#fff;background:linear-gradient(#6a5af2 0%,#4f46e5 90%);border:1px solid #3d35c9;width:100%;height:52px;margin-top:8px;font-size:14.5px;box-shadow:inset 0 1px #ffffff52,inset 0 -3px #1e187859,0 1px 2px #16123a40,0 6px 14px #16123a24}.gauth .btn-primary:hover{filter:brightness(1.05)}.gauth .btn-primary:active{transform:translateY(2px);box-shadow:inset 0 1px #fff3,inset 0 -1px #1e187859,inset 0 2px 6px #140f5a4d,0 1px 2px #16123a33}.gauth .btn:focus-visible{outline-offset:2px;outline:3px solid #7c5cfc61}.gauth .forgot{text-align:center;color:var(--faint);margin-top:16px;font-size:12px;transition:color .2s;display:block}.gauth .forgot:hover{color:var(--brand-deep)}.gauth .divider{color:var(--faint);letter-spacing:.2em;font-size:10.5px;font-family:var(--font-inter);align-items:center;gap:14px;margin:26px 0 18px;font-weight:700;display:flex}.gauth .divider:before,.gauth .divider:after{content:"";background:var(--line);flex:1;height:1px}.gauth .first{color:var(--sub);text-align:center;font-size:12.5px}.gauth .first a{color:var(--brand-deep);font-weight:700}.gauth .first a:hover{text-underline-offset:3px;text-decoration:underline}.gauth footer{border-top:1px solid var(--line);background:#fff;padding:28px 0}.gauth footer .wrap{color:var(--faint);align-items:center;gap:18px;font-size:11.5px;display:flex}.gauth footer a:hover{color:var(--ink)}.gauth footer .c{margin-left:auto}.gauth ::selection{background:#7c5cfc2e}@media (max-width:960px){.gauth .wrap{padding:0 22px}.gauth .nav .logo img{height:26px;transform:translateY(2px)}.gauth .back{font-size:11.5px}.gauth .card{padding:36px 26px 32px}.gauth footer .wrap{flex-wrap:wrap}}.gauth .note{text-align:left;border-radius:14px;margin:14px 0 4px;padding:13px 16px;font-size:13px;line-height:1.8}.gauth .note b{font-weight:700;display:block}.gauth .note p{margin-top:2px;font-size:12.5px}.gauth .note-ok{color:#1e7a4f;background:#e9f5ee;border:1px solid #1e7a4f40}.gauth .note-warn{color:#a05a1a;background:#faf0e2;border:1px solid #a05a1a40}.gauth .note-danger{color:#b4304a;background:#fbeaed;border:1px solid #d6455d4d}.gauth .links-row{justify-content:space-between;margin-top:14px;font-size:13px;display:flex}.gauth .links-row a{color:var(--brand-deep);text-underline-offset:2.5px;text-decoration:underline}