#nvb-account-app {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
    color: #1e293b;
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto 40px;
}

#nvb-account-app *,
#nvb-account-app *::before,
#nvb-account-app *::after {
    box-sizing: border-box;
}

#nvb-account-app h2 {
    background: none;
    border: none;
    border-radius: 0;
    padding: 0;
    margin: 0 0 12px;
}

#nvb-account-app h2::before,
#nvb-account-app h2::after {
    content: none;
    display: none;
}

#nvb-account-app .nvb-acc-hidden {
    display: none !important;
}

#nvb-account-app .nvb-acc-lead {
    font-size: 0.92rem;
    color: #475569;
    margin: 0 0 20px;
}

#nvb-account-app .nvb-acc-msg {
    border-radius: 12px;
    padding: 10px 14px;
    font-size: 0.86rem;
    margin: 0 0 16px;
}

#nvb-account-app .nvb-acc-ok {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #047857;
}

#nvb-account-app .nvb-acc-err {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
}

#nvb-account-app .nvb-acc-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

#nvb-account-app .nvb-acc-tab {
    border: 1px solid #cbd5e1;
    background: #fff;
    color: #334155;
    border-radius: 999px;
    padding: 7px 14px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
}

#nvb-account-app .nvb-acc-on {
    background: #eef2ff;
    border-color: #a5b4fc;
    color: #4338ca;
}

#nvb-account-app .nvb-acc-card {
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.05);
    padding: 18px 18px 16px;
    margin-bottom: 16px;
}

#nvb-account-app .nvb-acc-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: #334155;
    margin: 0 0 12px;
}

#nvb-account-app .nvb-acc-label input {
    display: block;
    width: 100%;
    margin-top: 6px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 1rem;
    color: #0f172a;
    background: #fff;
}

#nvb-account-app .nvb-acc-check {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.84rem;
    color: #334155;
    margin: 4px 0 14px;
}

#nvb-account-app .nvb-acc-check input {
    margin-top: 4px;
}

#nvb-account-app .nvb-acc-hp {
    position: absolute;
    left: -9999px;
    height: 0;
    overflow: hidden;
}

#nvb-account-app .nvb-acc-note {
    font-size: 0.84rem;
    color: #64748b;
    margin: 0 0 12px;
}

#nvb-account-app .nvb-acc-hello {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0 0 4px;
}

#nvb-account-app .nvb-acc-mail {
    font-size: 0.85rem;
    color: #64748b;
    margin: 0 0 14px;
}

#nvb-account-app .nvb-acc-h {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
}

#nvb-account-app .nvb-acc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    border: none;
    border-radius: 12px;
    background: #4f46e5;
    color: #fff;
    font-size: 0.92rem;
    font-weight: 700;
    padding: 11px 16px;
    cursor: pointer;
    text-decoration: none;
}

#nvb-account-app .nvb-acc-btn:hover {
    background: #4338ca;
    color: #fff;
}

#nvb-account-app .nvb-acc-btn:disabled {
    background: #c7d2fe;
    cursor: default;
}

#nvb-account-app .nvb-acc-btn-sub {
    width: auto;
    padding: 8px 16px;
    font-size: 0.84rem;
}

#nvb-account-app .nvb-acc-btn-ghost {
    background: #fff;
    color: #334155;
    border: 1px solid #cbd5e1;
}

#nvb-account-app .nvb-acc-btn-ghost:hover {
    background: #f8fafc;
    color: #334155;
}

#nvb-account-app .nvb-acc-btn-danger {
    background: #fff;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

#nvb-account-app .nvb-acc-btn-danger:hover {
    background: #fef2f2;
    color: #991b1b;
}

#nvb-account-app .nvb-acc-actions {
    display: grid;
    gap: 10px;
}

#nvb-account-app .nvb-acc-danger {
    background: #fffbeb;
    border-color: #fde68a;
}