.nav-chairman {
    background-color: rgba(255, 255, 255, 0.95) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    padding: 10px 0;
}

.nav-chairman .nav-link {
    color: #333;
}

.nav-chairman .nav-link:hover {
    color: #000;
}

.chairman-full-message {
    top: 50px;
    background-color: #f9f9f9;
    position: relative;
    overflow: hidden;
}

.message-content {
    position: relative;
    z-index: 1;
    border-top: 2px solid var(--primary-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.message-text {
    line-height: 2;
    font-size: 1.1rem;
    color: #444;
}

.message-text p {
    margin-bottom: 1.5rem;
}

.signature {
    border-top: 1px solid #eee;
    padding-top: 1rem;
}

.signature img {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

@media (max-width: 768px) {
    .message-text {
        font-size: 1rem;
        line-height: 1.8;
    }

    .chairman-full-message:before {
        width: 200px;
        height: 200px;
    }
}