/* --- Subpage Common Styles (Blog, Portfolio, Share) --- */

body.subpage {
    padding-top: calc(var(--nav-height, 80px) + 80px);
}

.page-container {
    max-width: 1200px;
    margin: 0 auto 60px;
    padding: 0 20px;
}

.page-header {
    margin-bottom: 60px;
    text-align: center;
}

.page-title-en {
    font-size: 3rem; 
    margin-bottom: 10px;
}

.page-title-cn {
    color: var(--text-muted);
}

/* --- Article / Detail Page Styles --- */
.article-container {
    max-width: 800px;
    margin: 0 auto 80px;
    padding: 0 20px 80px;
}

.article-title {
    font-size: 2.5rem;
    margin-bottom: 10px;
    line-height: 1.2;
}

.article-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
    display: flex;
    gap: 20px;
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #ddd;
}

.article-content h2 {
    margin-top: 40px;
    margin-bottom: 20px;
    color: #fff;
    font-size: 1.8rem;
}

.article-content h3 {
    margin-top: 30px;
    margin-bottom: 15px;
    color: #eee;
    font-size: 1.4rem;
}

.article-content p {
    margin-bottom: 20px;
}

.article-content ul {
    list-style: disc;
    margin-left: 20px;
    margin-bottom: 20px;
    color: #ccc;
}

.article-content li {
    margin-bottom: 10px;
}

.article-content img {
    margin: 30px 0;
    border-radius: 8px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 30px;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: 0.3s;
}

.back-link:hover {
    color: var(--text-main);
    transform: translateX(-5px);
}

/* --- Grid Layouts --- */
.grid-3-col {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 40px;
}

.grid-2-col {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(450px, 1fr));
    gap: 30px;
}

@media (max-width: 768px) {
    body.subpage {
        padding-top: calc(var(--nav-height, 80px) + 40px);
    }
    .grid-2-col { grid-template-columns: 1fr; }
}

/* --- Portfolio Specifics --- */
.portfolio-card {
    background: #111;
    border-radius: 12px;
    overflow: hidden;
    transition: 0.3s;
    border: 1px solid rgba(255,255,255,0.05);
    display: block;
}

.portfolio-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255,255,255,0.2);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.portfolio-thumb {
    height: 250px;
    width: 100%;
    object-fit: cover;
}

.portfolio-info {
    padding: 25px;
}

/* --- Share Specifics --- */
.share-section {
    margin-bottom: 60px;
}

.share-section-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
    border-left: 4px solid #fff;
    padding-left: 15px;
}