.article-main {
    max-width: 1000px;
    margin: 120px auto 60px;
    padding: 0 20px;
}
.article-header {
    text-align: center;
    margin-bottom: 40px;
}
.article-title {
    font-size: 3rem;
    margin-bottom: 15px;
    line-height: 1.2;
}
.article-meta {
    opacity: 0.7;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.article-cover {
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 50px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.article-cover img {
    width: 100%;
    height: auto;
    display: block;
    max-height: 600px;
    object-fit: cover;
}
.article-video {
    margin: 50px 0;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    background: transparent;
    display: flex;
    justify-content: center;
}
.article-video video {
    width: 100%;
    max-height: 600px;
    outline: none;
}
.article-content {
    font-size: 1.15rem;
    line-height: 1.9;
}
.article-content h2 {
    font-size: 2rem;
    margin: 50px 0 25px;
    border-left: 5px solid var(--primary-color, currentColor);
    padding-left: 15px;
}
.article-content p {
    margin-bottom: 25px;
    text-align: justify;
}
.btn-back {
    display: inline-flex;
    align-items: center;
    margin-top: 50px;
    padding: 12px 24px;
    background-color: transparent;
    color: inherit;
    border: 2px solid currentColor;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}
.btn-back:hover {
    transform: translateY(-3px);
    opacity: 0.8;
}