.abc-phone-notice {
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
    transition: all 0.3s ease;
}

.abc-phone-notice[open] {
    box-shadow: var(--abc-shadow-soft);
    border-color: var(--abc-color-gold-light);
}

.abc-phone-notice__summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    cursor: pointer;
    background: #fff;
    list-style: none;
}

.abc-phone-notice__summary::-webkit-details-marker {
    display: none;
}

.abc-phone-notice__summary-text {
    font-weight: 500;
    font-size: 16px;
    color: var(--abc-color-text);
}

.abc-phone-notice__icon {
    position: relative;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.abc-phone-notice__icon::before,
.abc-phone-notice__icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    background-color: var(--abc-color-gold);
    transform: translate(-50%, -50%);
    transition: transform 0.3s ease;
}

.abc-phone-notice__icon::before {
    width: 12px;
    height: 2px;
}

.abc-phone-notice__icon::after {
    width: 2px;
    height: 12px;
}

.abc-phone-notice[open] .abc-phone-notice__icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.abc-phone-notice__answer {
    padding: 0 24px 24px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--abc-color-text-light);
    border-top: 1px solid transparent;
}

.abc-phone-notice[open] .abc-phone-notice__answer {
    border-top-color: #f0f0f0;
    padding-top: 24px;
}

.abc-phone-notice__answer p {
    margin-bottom: 16px;
}

.abc-phone-notice__answer p:last-child {
    margin-bottom: 0;
}

.abc-phone-notice__answer p.abc-phone-notice__case-label {
    font-weight: 600;
    color: var(--abc-color-text);
    margin-top: 20px;
    margin-bottom: 8px;
}

.abc-phone-notice__answer a {
    color: var(--abc-color-text);
    text-decoration: underline;
    text-decoration-color: var(--abc-color-gold);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    transition: opacity 0.2s ease;
}

.abc-phone-notice__answer a:hover {
    opacity: 0.65;
}

@media (max-width: 768px) {
    .abc-phone-notice__summary {
        padding: 16px 20px;
    }
    .abc-phone-notice__answer {
        padding: 0 20px 20px;
    }
    .abc-phone-notice[open] .abc-phone-notice__answer {
        padding-top: 20px;
    }
}