.bd-placeholder-img {
    font-size: 1.125rem;
    text-anchor: middle;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
}

@media (min-width: 768px) {
    .bd-placeholder-img-lg {
        font-size: 3.5rem;
    }
}

.content h1 {
    font-size: 32px;
    margin-bottom: 10px;
}

.content h1 span {
    font-weight: normal;
    color: #666;
    font-size: 18px;
}

.subtitle-bar {
    width: 100%;
    background: #f1f1f1;
    padding: 10px 15px;
    font-weight: bold;
    margin: 20px 0;
    border-radius: 5px;
    display: inline-block;
}

.description {
    margin-bottom: 40px;
    color: #444;
    max-width: 700px;
}

.patents-section h2 {
    margin-bottom: 20px;
}

.columns {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.column {
    flex: 1;
    min-width: 250px;
}

.column h3 {
    font-size: 16px;
    margin-bottom: 10px;
}

.column ul {
    list-style: none;
    padding-left: 0;
}

.column li {
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.column li::before {
    content: "✔";
    position: absolute;
    left: 0;
    color: #00a3c8;
}

.buttons {
    margin-top: 40px;
}

.buttons a {
    display: block;
    background: #f1f1f1;
    margin-bottom: 10px;
    padding: 15px 20px;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    font-weight: bold;
}