.single-layout {
    padding: 60px 0;
}
.article-main {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 3px 20px rgba(0,0,0,0.04);
    border: 1px solid #f0f0f0;
    overflow: hidden;
}
.article-header {
    padding: 40px 40px 0;
}
.article-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 18px;
    color: #1a1a2e;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.9rem;
    color: #888;
}
.article-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}
.article-meta span i {
    color: #4080ff;
}
.article-meta .category-badge {
    background: linear-gradient(135deg, #4080ff, #66a3ff);
    color: #fff;
    padding: 2px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}
.article-cover {
    margin: 0;
    overflow: hidden;
    max-height: 420px;
}
.article-cover img {
    width: 100%;
    height: auto;
    display: block;
}
.article-body {
    padding: 40px;
    font-size: 1.05rem;
    line-height: 1.85;
    color: #444;
}
.article-body p {
    margin-bottom: 1.2rem;
}
.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 1.5rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.article-footer {
    padding: 0 40px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}
.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: #f0f4ff;
    color: #4080ff;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
}
.btn-back:hover {
    background: #4080ff;
    color: #fff;
}
.article-nav {
    display: flex;
    gap: 10px;
}
.article-nav a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: #f8f9fa;
    color: #555;
    border-radius: 10px;
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: all 0.3s;
    border: 1px solid #eee;
}
.article-nav a:hover {
    background: #4080ff;
    color: #fff;
    border-color: #4080ff;
}
.error-box {
    text-align: center;
    padding: 80px 40px;
}
.error-box i {
    font-size: 4rem;
    color: #ddd;
    margin-bottom: 20px;
}
.error-box h2 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 12px;
}
.error-box p {
    color: #888;
    margin-bottom: 25px;
}
.hot-recommend {
    padding: 50px 40px;
    background: #f8f9fa;
    border-top: 1px solid #f0f0f0;
}
.hot-recommend h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 25px;
    color: #1a1a2e;
    display: flex;
    align-items: center;
    gap: 8px;
}
.hot-recommend h3 i {
    color: #ff6b35;
}
.hot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
.hot-item {
    background: #fff;
    border-radius: 12px;
    padding: 20px 22px;
    box-shadow: 0 3px 12px rgba(0,0,0,0.04);
    border: 1px solid #f0f0f0;
    transition: all 0.3s;
    text-decoration: none;
    display: block;
}
.hot-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(64,128,255,0.1);
    border-color: #4080ff;
}
.hot-item .hot-num {
    font-size: 0.8rem;
    font-weight: 700;
    color: #4080ff;
    margin-bottom: 6px;
}
.hot-item h4 {
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.4;
    color: #333;
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.hot-item .hot-date {
    font-size: 0.78rem;
    color: #bbb;
}
@media (max-width: 991px) {
    .article-header { padding: 28px 24px 0; }
    .article-body { padding: 24px; }
    .article-footer { padding: 0 24px 28px; }
    .article-header h1 { font-size: 1.4rem; }
    .hot-recommend { padding: 30px 24px; }
    .hot-grid { grid-template-columns: 1fr; }
}