.page-qq-groups {
    padding: 30px 0;
}

.page-header {
    text-align: center;
    margin-bottom: 40px;
}

.page-header h1 {
    font-size: 28px;
    color: var(--text);
    margin: 0 0 10px 0;
}

.page-header h1 i {
    color: #2586EB;
    margin-right: 10px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

.qq-groups-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.qq-group-card {
    background: var(--card);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.qq-group-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.group-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.group-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2586EB, #6C5CE7);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 28px;
}

.group-info {
    flex: 1;
}

.group-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 8px 0;
}

.group-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

.group-meta i {
    margin-right: 4px;
    color: var(--text-muted);
}

.group-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 16px 0;
    display: -webkit-box;
    display: box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    box-orient: vertical;
    overflow: hidden;
}

.group-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.group-tags .tag {
    padding: 4px 12px;
    background: rgba(37, 134, 235, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 12px;
}

.join-btn {
    display: block;
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #2586EB, #1a73d9);
    color: #fff;
    text-align: center;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.join-btn:hover {
    background: linear-gradient(135deg, #1a73d9, #1565c0);
    transform: translateY(-1px);
}

.join-btn i {
    margin-right: 6px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    grid-column: 1 / -1;
}

.empty-state i {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.empty-state p {
    font-size: 16px;
    color: var(--text-secondary);
    margin: 0;
}

@media (max-width: 767px) {
    .qq-groups-grid {
        grid-template-columns: 1fr;
        padding: 0 15px;
    }
    
    .page-header h1 {
        font-size: 24px;
    }
}