/* ==========================================
   青龙论坛 - 高手榜单样式
   版本: 1.0.0
   更新日期: 2026-05-07
   ========================================== */

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 4rem 0 3rem;
    margin-top: -1rem;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.page-header p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 0;
}

.date-display {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
}

/* 筛选栏 */
.experts-filter-section {
    padding: 2rem 0;
    background: var(--body-bg);
}

.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.filter-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.filter-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.filter-tab.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.filter-search .input-group {
    border-radius: 10px;
    overflow: hidden;
}

.filter-search .input-group-text {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-right: none;
    color: var(--text-secondary);
}

.filter-search .form-control {
    border: 2px solid var(--border-color);
    border-left: none;
    padding: 0.625rem 1rem;
}

.filter-search .form-control:focus {
    box-shadow: none;
    border-color: var(--primary-color);
}

/* 专家列表区域 */
.experts-list-section {
    padding: 2rem 0 5rem;
    background: var(--body-bg);
}

/* 专家卡片 */
.expert-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    height: 100%;
    text-align: center;
}

.expert-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

/* 排名标识 */
.expert-rank {
    position: absolute;
    top: 1rem;
    left: 1rem;
    width: 36px;
    height: 36px;
    background: var(--light-color);
    color: var(--text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.875rem;
}

.expert-rank.rank-1 {
    background: linear-gradient(135deg, #ffd700, #ffaa00);
    color: #fff;
    box-shadow: 0 2px 8px rgba(255, 170, 0, 0.4);
}

.expert-rank.rank-2 {
    background: linear-gradient(135deg, #c0c0c0, #a0a0a0);
    color: #fff;
}

.expert-rank.rank-3 {
    background: linear-gradient(135deg, #cd7f32, #b87333);
    color: #fff;
}

/* 顶部专家卡片 */
.top-expert {
    text-align: left;
    padding: 2.5rem;
}

.top-expert .expert-rank.rank-1 {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
    flex-direction: column;
}

.top-expert .expert-rank.rank-1 i {
    font-size: 0.875rem;
    margin-bottom: -4px;
}

.top-expert .expert-rank.rank-1 span {
    font-size: 0.75rem;
    line-height: 1;
}

.top-expert .expert-profile {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.top-expert .expert-avatar-large {
    position: relative;
    flex-shrink: 0;
}

.top-expert .expert-avatar-large img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--border-color);
}

.top-expert .expert-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    background: linear-gradient(135deg, var(--primary-color), #764ba2);
    color: #fff;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 2px solid #fff;
}

.top-expert .expert-info h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.top-expert .expert-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.top-expert .expert-bio {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
    font-size: 0.9375rem;
}

.top-expert .expert-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.top-expert .expert-tags .tag {
    padding: 0.375rem 0.875rem;
    background: var(--light-color);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 专家统计栏 */
.expert-stats-bar {
    display: flex;
    gap: 2rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.expert-stats-bar .stat {
    text-align: center;
    min-width: 80px;
}

.expert-stats-bar .stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.expert-stats-bar .stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* 专家操作按钮 */
.top-expert .expert-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.top-expert .expert-actions .btn {
    border-radius: 10px;
    font-weight: 600;
    padding: 0.625rem 1.25rem;
}

.top-expert .expert-actions .btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #764ba2);
    border: none;
}

/* 普通专家卡片 */
.expert-card .expert-avatar {
    width: 96px;
    height: 96px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--border-color);
    transition: var(--transition);
}

.expert-card:hover .expert-avatar {
    border-color: var(--primary-color);
}

.expert-card .expert-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expert-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.expert-card .expert-title {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.expert-card .expert-bio {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.expert-card .expert-stats {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.expert-card .expert-stats i {
    color: var(--warning-color);
    margin-right: 0.25rem;
}

.expert-card .expert-actions {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.expert-card .expert-actions .btn {
    border-radius: 8px;
    font-weight: 600;
}

/* 响应式设计 */
@media (max-width: 991.98px) {
    .page-header {
        padding: 3rem 0 2rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 0.5rem;
    }
    
    .top-expert {
        padding: 1.75rem;
    }
    
    .top-expert .expert-profile {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .top-expert .expert-avatar-large {
        margin: 0 auto;
    }
    
    .top-expert .expert-tags {
        justify-content: center;
    }
    
    .expert-stats-bar {
        justify-content: center;
        gap: 1.5rem;
    }
    
    .top-expert .expert-actions {
        justify-content: center;
    }
}

@media (max-width: 767.98px) {
    .page-header h1 {
        font-size: 1.75rem;
    }
    
    .top-expert {
        padding: 1.5rem;
    }
    
    .top-expert .expert-avatar-large img {
        width: 100px;
        height: 100px;
    }
    
    .expert-stats-bar .stat-value {
        font-size: 1.125rem;
    }
    
    .expert-card {
        padding: 1.5rem;
    }
}

@media (max-width: 575.98px) {
    .filter-tab {
        padding: 0.375rem 0.75rem;
        font-size: 0.875rem;
    }
    
    .top-expert .expert-actions .btn {
        width: 100%;
    }
    
    .expert-stats-bar {
        gap: 1rem;
    }
    
    .expert-stats-bar .stat {
        min-width: 60px;
    }
}