.auth{--blue:#06c;--blue-d:#0071e3;--teal:#1aa39a;--pink:#d63384;--yellow:#e8a900;--ink:#1d1d1f;--ink-soft:#6e6e73;--line:#e3e3e6;--bg-soft:#f5f5f7;--bg-soft2:#ececf0;isolation:isolate;min-height:100dvh;font-family:var(--font-noto), "Noto Sans JP", sans-serif;color:var(--ink);background:radial-gradient(1200px 700px at 50% -10%, var(--bg-soft2) 0%, #eaf3ff00 60%), var(--bg-soft);-webkit-font-smoothing:antialiased;justify-content:center;align-items:center;padding:48px 20px;line-height:1.7;display:flex;position:relative;overflow:hidden}.auth *{box-sizing:border-box}.auth-bg{z-index:-1;pointer-events:none;position:absolute;inset:0;overflow:hidden}.auth-blob{filter:blur(70px);opacity:.45;border-radius:50%;position:absolute}.auth-blob.b-blue{background:var(--blue);width:360px;height:360px;top:8%;left:-8%}.auth-blob.b-teal{background:var(--teal);width:300px;height:300px;top:4%;right:-6%}.auth-blob.b-pink{background:var(--pink);opacity:.32;width:320px;height:320px;bottom:2%;right:-7%}.auth-blob.b-yellow{background:var(--yellow);opacity:.4;width:280px;height:280px;bottom:4%;left:-6%}.auth-card{z-index:1;border:1px solid var(--line);background:#fff;border-radius:24px;width:100%;max-width:420px;padding:44px 36px 36px;position:relative;box-shadow:0 24px 60px #16263f1f}.auth-logo-link{width:fit-content;margin:0 auto 22px;display:block}.auth-logo{object-fit:contain;width:76px;height:76px;display:block}.auth-title{font-family:var(--font-display), var(--font-noto), sans-serif;text-align:center;letter-spacing:.01em;margin:0 0 6px;font-size:26px;font-weight:700}.auth-sub{text-align:center;color:var(--ink-soft);margin:0 0 28px;font-size:14px}.auth-form{flex-direction:column;display:flex}.auth-field{margin-bottom:18px}.auth-label{color:var(--ink);margin-bottom:8px;font-size:13px;font-weight:700;display:block}.auth-input{border:1.5px solid var(--line);background:var(--bg-soft);width:100%;height:52px;color:var(--ink);border-radius:14px;padding:0 16px;font-family:inherit;font-size:15px;transition:border-color .15s,background .15s,box-shadow .15s}.auth-input::placeholder{color:#9aa7b8}.auth-input:focus{border-color:var(--blue);background:#fff;outline:none;box-shadow:0 0 0 4px #0066cc1f}.auth-submit{background:var(--blue);color:#fff;cursor:pointer;border:none;border-radius:40px;width:100%;height:54px;margin-top:6px;font-family:inherit;font-size:16px;font-weight:700;transition:transform .15s,box-shadow .15s,opacity .15s;box-shadow:0 10px 22px #0066cc52}.auth-submit:hover{transform:translateY(-2px);box-shadow:0 14px 28px #0066cc6b}.auth-submit:active{transform:scale(.98)}.auth-submit:disabled{opacity:.6;cursor:not-allowed;box-shadow:none;transform:none}.auth-error{color:#c81e4f;background:#fdecef;border:1px solid #f8c6d2;border-radius:12px;align-items:flex-start;gap:10px;margin-bottom:20px;padding:12px 14px;font-size:13.5px;font-weight:600;line-height:1.55;display:flex}.auth-error-icon{background:var(--pink);color:#fff;text-align:center;border-radius:50%;flex:none;width:20px;height:20px;font-size:13px;font-weight:800;line-height:20px}.auth-foot{text-align:center;color:var(--ink-soft);margin:24px 0 0;font-size:13px}.auth-foot a{color:var(--blue);font-weight:700;text-decoration:none}.auth-foot a:hover{text-decoration:underline}@media (max-width:480px){.auth{padding:24px 16px}.auth-card{border-radius:20px;padding:36px 24px 28px}.auth-title{font-size:23px}}