.box {
    display: flex;
    gap: 16px;
    padding: 18px 22px;
    margin: 20px 0;
    border: 1px solid;
    border-radius: 18px;
    font-size: 16px;
    line-height: 1.6;

    --link-color: inherit;
}

.box-icon {
    font-size: 22px;
    flex-shrink: 0;
    margin-top: 2px;
}

.box-content {
    flex: 1;
}

.box-content p {
    margin: 0;
}

.box-content a {
    color: var(--link-color);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 2px;
}
.box-info {
    background: #fafafa;
    border-color: #e5e7eb;
    color: #4b5563;
    --link-color: #1f2937;
}
.box-reminder {
    background: #eff6ff;
    border-color: #93c5fd;
    color: #2563eb;
    --link-color: #1d4ed8;
}

.box-complete {
    background: #f0fdf4;
    border-color: #86efac;
    color: #16a34a;
    --link-color: #166534;
}
.box-caution {
    background: #fffbeb;
    border-color: #fcd34d;
    color: #a16207;
    --link-color: #854d0e;
}
.box-warning {
    background: #fef2f2;
    border-color: #fca5a5;
    color: #dc2626;
    --link-color: #991b1b;
}