{ box-sizバージョンinrder-box; margin: 0; padding: 0; } body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #f4f6f9; display: flex; align-items: center; justify-content: center; min-height: 100vh; color: #333; } .card { background: #fff; border-radius: 12px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); padding: 48px 40px; max-width: 480px; width: 100%; text-align: center; } .card__title { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; color: #1a1a2e; } .card__desc { font-size: 0.95rem; color: #666; margin-bottom: 36px; line-height: 1.6; } .btn-group { display: flex; flex-direction: column; gap: 14px; } .btn { display: block; width: 100%; padding: 16px 24px; border-radius: 8px; border: 2px solid transparent; font-size: 1rem; font-weight: 600; cursor: pointer; text-decoration: none; transition: background 0.15s, border-color 0.15s, color 0.15s; } .btn--v2 { background: #004aad; color: #fff; } .btn--v2:hover { background: #003a8a; } .btn--v1 { background: #fff; color: #004aad; border-color: #004aad; } .btn--v1:hover { background: #eef3ff; } .btn--logout { background: #fff; color: #b42318; border-color: #f4b4af; } .btn--logout:hover { background: #fff1f0; } .btn__label { display: block; font-size: 0.78rem; font-weight: 400; margin-top: 2px; opacity: 0.75; } .error-box { background: #fff3f3; border: 1px solid #f5a3a3; border-radius: 8px; padding: 16px 20px; color: #c0392b; font-size: 0.9rem; line-height: 1.6; text-align: left; } [hidden] { display: none !important; }

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