/* ========================================
   用户首页现代化样式 - 与小组首页风格一致
   ======================================== */

/* 1. 基础样式 */
.user-index-page {
    background: #ffffff;
    min-height: 100vh;
}

.user-index-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 20px;
}

/* 2. 页面标题区域 - 参照小组首页 */
.user-index-page .page-header-section {
    margin-bottom: 1rem; /* 与小组首页保持一致 */
    padding: 1rem 0;
}

.user-index-page .page-title-container {
    background: #f0f8ff;
    border-radius: 12px;
    padding: 2rem;
    border: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-index-page .page-main-title {
    margin: 0 0 0.75rem 0;
    font-size: 2.25rem;
    font-weight: 700;
    color: #1f2937;
    line-height: 1.2;
}

.user-index-page .page-subtitle {
    margin: 0;
    font-size: 1.125rem;
    color: #6b7280;
    line-height: 1.6;
    max-width: 600px;
}

/* 3. 筛选器区域 - 与小组首页一致 */
.user-index-page .filter-section {
    margin-bottom: 36px;
    display: flex;
    justify-content: flex-start;
}

.user-index-page .filter-container {
    display: flex;
    gap: 8px;
    background: #f8fafc;
    padding: 4px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    flex-wrap: wrap;
}

.user-index-page .filter-tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    color: #64748b;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.user-index-page .filter-tag:hover {
    background: #ffffff;
    color: #374151;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.user-index-page .filter-tag.active {
    background: #3b82f6;
    color: white;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

/* 4. 用户网格区域 */
.users-grid-section {
    margin-bottom: 2rem;
}

.user-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.user-card-item {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.user-card-item:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transform: translateY(-2px);
    border-color: #d1d5db;
}

.user-card-avatar {
    margin-bottom: 1rem;
}

.user-card-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #f3f4f6;
    transition: border-color 0.2s ease;
}

.user-card-item:hover .user-card-avatar img {
    border-color: #3b82f6;
}

.user-card-name {
    margin: 0 0 0.5rem 0;
    font-size: 1.125rem;
    font-weight: 600;
}

.user-card-name a {
    color: #1f2937;
    text-decoration: none;
}

.user-card-name a:hover {
    color: #3b82f6;
}

.user-card-stats {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: #6b7280;
}

.user-card-btn {
    padding: 0.5rem 1.5rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: white;
    color: #374151;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.user-card-btn:hover {
    background: #f9fafb;
    border-color: #9ca3af;
}

.user-card-btn.followed {
    background: #3b82f6;
    border-color: #3b82f6;
    color: white;
}

.user-card-btn.followed:hover {
    background: #2563eb;
    border-color: #2563eb;
}

.user-card-btn.followed .btn-hover-text {
    color: white; /* 已关注按钮悬停时使用白色文本 */
}

.btn-text, .btn-hover-text {
    transition: opacity 0.2s ease;
}

.btn-hover-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    color: #374151; /* 未关注按钮悬停时使用深灰色文本 */
}

.user-card-btn:hover .btn-text {
    opacity: 0;
}

.user-card-btn:hover .btn-hover-text {
    opacity: 1;
}

/* 5. 空状态 */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #6b7280;
}

/* 6. 分页 */
.pagination-container {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

/* 7. 响应式设计 */
@media (max-width: 768px) {
    .user-index-container {
        padding: 20px 16px;
    }

    .user-index-page .page-header-section {
        margin-bottom: 0.75rem; /* 移动端减少间距 */
        padding: 0.75rem 0;
    }

    .user-index-page .page-title-container {
        flex-direction: column;
        padding: 1.5rem;
        gap: 1.5rem;
    }

    .user-index-page .page-main-title {
        font-size: 1.625rem;
    }

    .user-index-page .page-subtitle {
        font-size: 0.9375rem;
    }

    .user-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .user-card-item {
        padding: 1.25rem;
    }
}

@media (max-width: 480px) {
    .user-index-container {
        padding: 16px 12px;
    }

    .user-index-page .page-title-container {
        padding: 1.25rem;
    }

    .user-index-page .page-main-title {
        font-size: 1.5rem;
    }

    .user-index-page .page-subtitle {
        font-size: 0.875rem;
    }

    .user-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .user-card-item {
        padding: 1rem;
    }
}

@media (max-width: 360px) {
    .user-index-container {
        padding: 12px 8px;
    }

    .user-index-page .page-title-container {
        padding: 1rem;
    }

    .user-index-page .page-main-title {
        font-size: 1.375rem;
    }

    .user-index-page .page-subtitle {
        font-size: 0.8125rem;
    }

    .user-card-avatar img {
        width: 70px;
        height: 70px;
    }
}

/* 8. 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .user-card-item {
        padding: 1.25rem;
    }

    .user-card-btn {
        padding: 0.75rem 1.5rem;
        min-height: 44px; /* 触摸友好高度 */
    }

    .filter-tag {
        padding: 12px 16px;
        min-height: 44px;
    }
}