/**
 * 排行榜前台样式 - 高大上设计
 */

/* ===== 基础容器 ===== */
.knn-leaderboard-frontend {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.4);
    margin: 40px auto;
    max-width: 1200px;
    overflow: hidden;
    position: relative;
}

/* 背景装饰 */
.knn-leaderboard-frontend::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.knn-leaderboard-header {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    text-align: center;
    position: relative;
    z-index: 1;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.knn-leaderboard-title {
    color: #fff;
    font-size: 32px;
    font-weight: 800;
    margin: 0;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
}

.knn-leaderboard-title i {
    margin-right: 15px;
    color: #ffd700;
    font-size: 36px;
    animation: trophy-shine 2s ease-in-out infinite;
}

@keyframes trophy-shine {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 10px #ffd700); }
    50% { transform: scale(1.1); filter: drop-shadow(0 0 20px #ffd700); }
}

.knn-leaderboard-body {
    padding: 30px;
    background: rgba(255, 255, 255, 0.95);
    position: relative;
    z-index: 1;
}

.knn-leaderboard-empty {
    text-align: center;
    padding: 60px 20px;
    color: #999;
    font-size: 18px;
}

.knn-leaderboard-empty i {
    font-size: 64px;
    display: block;
    margin-bottom: 20px;
    opacity: 0.5;
}

/* ===== 短代码页面 - 标签栏样式 ===== */
.knn-leaderboard-frontend .knn-tabs-nav {
    display: flex;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: none;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 15px;
    gap: 10px;
    flex-wrap: nowrap;
    white-space: nowrap;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
}

.knn-leaderboard-frontend .knn-tabs-nav::-webkit-scrollbar {
    display: none;
}

.knn-leaderboard-frontend .knn-tabs-nav.grabbing {
    cursor: grabbing;
}

.knn-leaderboard-frontend .knn-tab-item {
    flex: 0 0 auto;
    padding: 12px 24px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 30px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.knn-leaderboard-frontend .knn-tab-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
    opacity: 0;
    transition: opacity 0.3s;
}

.knn-leaderboard-frontend .knn-tab-item:hover::before {
    opacity: 1;
}

.knn-leaderboard-frontend .knn-tab-item:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.knn-leaderboard-frontend .knn-tab-item.active {
    background: #fff;
    color: #667eea;
    border-color: #fff;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    transform: scale(1.05);
}

.knn-leaderboard-frontend .knn-tab-item .tab-icon {
    font-size: 18px;
}

.knn-leaderboard-frontend .knn-tabs-content {
    padding: 0;
    min-height: auto;
}

/* ===== 短代码页面 - 排行榜列表 ===== */
.knn-leaderboard-frontend .knn-rank-list {
    list-style: none;
    margin: 0;
    padding: 20px 30px 30px;
}

.knn-leaderboard-frontend .knn-rank-item {
    display: flex;
    align-items: center;
    padding: 20px;
    margin-bottom: 15px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.knn-leaderboard-frontend .knn-rank-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #667eea, #764ba2);
    opacity: 0;
    transition: opacity 0.3s;
}

.knn-leaderboard-frontend .knn-rank-item:hover {
    transform: translateX(8px) scale(1.02);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
}

.knn-leaderboard-frontend .knn-rank-item:hover::before {
    opacity: 1;
}

/* 前三名特殊样式 */
.knn-leaderboard-frontend .knn-rank-item.rank-1 {
    background: linear-gradient(135deg, #fff9e6 0%, #fff 100%);
    border: 2px solid #ffd700;
}

.knn-leaderboard-frontend .knn-rank-item.rank-1::before {
    background: linear-gradient(180deg, #ffd700, #f39c12);
    opacity: 1;
    width: 6px;
}

.knn-leaderboard-frontend .knn-rank-item.rank-2 {
    background: linear-gradient(135deg, #f5f5f5 0%, #fff 100%);
    border: 2px solid #c0c0c0;
}

.knn-leaderboard-frontend .knn-rank-item.rank-2::before {
    background: linear-gradient(180deg, #c0c0c0, #a8a8a8);
    opacity: 1;
    width: 6px;
}

.knn-leaderboard-frontend .knn-rank-item.rank-3 {
    background: linear-gradient(135deg, #fff4e6 0%, #fff 100%);
    border: 2px solid #cd7f32;
}

.knn-leaderboard-frontend .knn-rank-item.rank-3::before {
    background: linear-gradient(180deg, #cd7f32, #b8691e);
    opacity: 1;
    width: 6px;
}

/* 排名徽章 */
.knn-leaderboard-frontend .rank-badge {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e0e0e0, #bdbdbd);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 18px;
    color: #fff;
    margin-right: 20px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    position: relative;
}

.knn-leaderboard-frontend .rank-badge::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70%;
    height: 70%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    border-radius: 50%;
}

.knn-leaderboard-frontend .knn-rank-item.rank-1 .rank-badge {
    background: linear-gradient(135deg, #ffd700, #f39c12);
    font-size: 22px;
    width: 60px;
    height: 60px;
    animation: rank1-pulse 2s ease-in-out infinite;
}

@keyframes rank1-pulse {
    0%, 100% { box-shadow: 0 4px 12px rgba(255, 215, 0, 0.4); }
    50% { box-shadow: 0 8px 24px rgba(255, 215, 0, 0.6); }
}

.knn-leaderboard-frontend .knn-rank-item.rank-2 .rank-badge {
    background: linear-gradient(135deg, #c0c0c0, #a8a8a8);
    width: 55px;
    height: 55px;
}

.knn-leaderboard-frontend .knn-rank-item.rank-3 .rank-badge {
    background: linear-gradient(135deg, #cd7f32, #b8691e);
    width: 55px;
    height: 55px;
}

/* 用户头像 */
.knn-leaderboard-frontend .user-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 20px;
    border: 3px solid #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    flex-shrink: 0;
    position: relative;
}

.knn-leaderboard-frontend .knn-rank-item.rank-1 .user-avatar {
    border-color: #ffd700;
    width: 70px;
    height: 70px;
}

.knn-leaderboard-frontend .knn-rank-item.rank-2 .user-avatar {
    border-color: #c0c0c0;
    width: 65px;
    height: 65px;
}

.knn-leaderboard-frontend .knn-rank-item.rank-3 .user-avatar {
    border-color: #cd7f32;
    width: 65px;
    height: 65px;
}

.knn-leaderboard-frontend .user-avatar:hover {
    transform: scale(1.1) rotate(5deg);
}

.knn-leaderboard-frontend .user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 用户信息 */
.knn-leaderboard-frontend .user-info {
    flex-grow: 1;
    min-width: 0;
}

.knn-leaderboard-frontend .user-name {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 8px;
    text-decoration: none;
    transition: color 0.3s;
}

.knn-leaderboard-frontend .knn-rank-item.rank-1 .user-name {
    font-size: 20px;
    color: #f39c12;
}

.knn-leaderboard-frontend .user-name:hover {
    color: #667eea;
}

.knn-leaderboard-frontend .user-value {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.knn-leaderboard-frontend .knn-rank-item.rank-1 .user-value {
    font-size: 28px;
    background: linear-gradient(135deg, #ffd700, #f39c12);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.knn-leaderboard-frontend .knn-rank-item.rank-2 .user-value {
    font-size: 26px;
    background: linear-gradient(135deg, #c0c0c0, #a8a8a8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.knn-leaderboard-frontend .knn-rank-item.rank-3 .user-value {
    font-size: 26px;
    background: linear-gradient(135deg, #cd7f32, #b8691e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== 列表样式 ===== */
.knn-leaderboard-list .knn-rank-table {
    width: 100%;
    border-collapse: collapse;
}

.knn-rank-table thead {
    background: #f8f9fa;
}

.knn-rank-table th {
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    color: #495057;
    border-bottom: 2px solid #dee2e6;
}

.knn-rank-table .col-rank {
    width: 80px;
    text-align: center;
}

.knn-rank-table .col-value {
    width: 150px;
    text-align: right;
}

.knn-rank-table tbody tr {
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s;
}

.knn-rank-table tbody tr:hover {
    background: #f8f9fa;
}

.knn-rank-table tbody tr.top-rank {
    background: linear-gradient(90deg, #fff8f0, #fff);
}

.knn-rank-table td {
    padding: 15px;
}

.knn-rank-table .rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #e0e0e0;
    color: #fff;
    font-weight: 700;
}

.knn-rank-table .user-cell {
    display: flex;
    align-items: center;
    gap: 12px;
}

.knn-rank-table .user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid #e0e0e0;
    flex-shrink: 0;
}

.knn-rank-table .user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.knn-rank-table .user-name {
    font-weight: 600;
    color: #2c3e50;
    text-decoration: none;
}

.knn-rank-table .user-name:hover {
    color: #1e88e5;
}

.knn-rank-table .value-number {
    font-size: 18px;
    font-weight: 700;
    color: #1e88e5;
}

/* ===== 小工具样式 ===== */
.knn-widget-leaderboard {
    font-size: 14px;
}

.knn-widget-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.knn-widget-item {
    display: flex;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}

.knn-widget-item:last-child {
    border-bottom: none;
}

.knn-widget-item .knn-rank-badge {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #e0e0e0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12px;
    color: #fff;
    margin-right: 10px;
    flex-shrink: 0;
}

.knn-widget-item.rank-1 .knn-rank-badge {
    background: linear-gradient(135deg, #ffd700, #f39c12);
}

.knn-widget-item.rank-2 .knn-rank-badge {
    background: linear-gradient(135deg, #c0c0c0, #a8a8a8);
}

.knn-widget-item.rank-3 .knn-rank-badge {
    background: linear-gradient(135deg, #cd7f32, #b8691e);
}

.knn-widget-item .knn-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 10px;
    border: 2px solid #f0f0f0;
    flex-shrink: 0;
}

.knn-widget-item .knn-user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.knn-widget-item .knn-user-info {
    flex-grow: 1;
    min-width: 0;
}

.knn-widget-item .knn-user-name {
    display: block;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-decoration: none;
    font-size: 13px;
}

.knn-widget-item .knn-user-name:hover {
    color: #1e88e5;
}

.knn-widget-item .knn-user-value {
    font-size: 12px;
    color: #1e88e5;
    font-weight: 600;
}

.knn-widget-empty {
    text-align: center;
    padding: 20px;
    color: #999;
}

/* ===== 多标签页样式 ===== */
.knn-widget-tabs-leaderboard {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
}

.knn-tabs-nav {
    display: flex;
    background: #fff;
    border-bottom: 2px solid #f0f0f0;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    /* 隐藏滚动条 */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
    padding: 5px 5px 0;
    /* 关键：强制不换行 */
    flex-wrap: nowrap;
    white-space: nowrap;
    /* 🔥 添加鼠标样式提示可滑动 */
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
}

/* 🔥 滑动中的样式 */
.knn-tabs-nav.grabbing {
    cursor: grabbing;
}

/* 隐藏Webkit滚动条 */
.knn-tabs-nav::-webkit-scrollbar {
    display: none;
}

.knn-tab-item {
    flex: 0 0 auto;
    padding: 10px 14px;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 5px;
    color: #666;
    font-size: 13px;
    font-weight: 500;
    border-radius: 6px 6px 0 0;
    margin: 0 2px;
    background: transparent;
}

.knn-tab-item:hover {
    background: #f8f9fa;
    color: #1e88e5;
}

.knn-tab-item.active {
    background: #fff;
    color: #1e88e5;
    border-bottom-color: #1e88e5;
    font-weight: 600;
    box-shadow: 0 -2px 8px rgba(30, 136, 229, 0.1);
}

.knn-tab-item .tab-icon {
    font-size: 15px;
}

.knn-tabs-content {
    padding: 15px;
    min-height: 180px;
}

.knn-tabs-loading {
    text-align: center;
    padding: 40px 20px;
    color: #999;
    font-size: 14px;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .knn-leaderboard-title {
        font-size: 20px;
    }
    
    .knn-rank-card {
        padding: 12px;
    }
    
    .knn-rank-card .user-avatar {
        width: 40px;
        height: 40px;
    }
    
    .knn-rank-card .user-name {
        font-size: 14px;
    }
    
    .knn-rank-card .user-value {
        font-size: 16px;
    }
    
    .knn-rank-table .col-value {
        width: 100px;
    }
    
    .knn-rank-table .value-number {
        font-size: 14px;
    }
}

/* ===== 网格布局样式 - 精致紧凑版 ===== */
.knn-leaderboard-grid {
    background: transparent;
    box-shadow: none;
    margin: 30px auto;
    max-width: 1200px;
    padding: 0 15px;
}

.knn-leaderboard-main-header {
    text-align: center;
    margin-bottom: 35px;
    background: none !important;
    background-color: transparent !important;
    padding: 0;
    border: none !important;
    box-shadow: none !important;
}

/* 移除标题的边框和伪元素 */
.knn-leaderboard-main-header::before,
.knn-leaderboard-main-header::after {
    display: none !important;
    content: none !important;
    border: none !important;
}

/* 强制移除h2的默认样式 */
.knn-leaderboard-main-header h2,
.knn-leaderboard-main-header h2.knn-leaderboard-main-title {
    background: none !important;
    background-color: transparent !important;
    border: none !important;
    border-bottom: none !important;
    border-top: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

.knn-leaderboard-main-title {
    font-size: 36px;
    font-weight: 900;
    color: #2c3e50 !important;
    margin: 0;
    padding: 0;
    letter-spacing: 2px;
    display: inline-block;
    border: none !important;
    border-left: none !important;
    border-bottom: none !important;
    border-top: none !important;
    position: relative;
    box-shadow: none !important;
    background: none !important;
    -webkit-text-fill-color: #2c3e50 !important;
}

/* 移除标题文字的伪元素 */
.knn-leaderboard-main-title::before,
.knn-leaderboard-main-title::after {
    display: none !important;
    content: none !important;
    border: none !important;
}

/* 深色模式下也移除背景 */
.dark-theme .knn-leaderboard-main-header {
    background: none !important;
    background-color: transparent !important;
    border: none !important;
}

.dark-theme .knn-leaderboard-main-header h2,
.dark-theme .knn-leaderboard-main-header h2.knn-leaderboard-main-title {
    background: none !important;
    background-color: transparent !important;
    border: none !important;
    border-bottom: none !important;
}

.knn-leaderboard-main-title i {
    color: #FFD93D;
    font-size: 40px;
    margin-right: 12px;
    -webkit-text-fill-color: #FFD93D;
    filter: drop-shadow(0 3px 8px rgba(255, 217, 61, 0.4));
    vertical-align: middle;
}

.knn-leaderboard-grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 0;
}

/* 榜单卡片 - 精简设计 */
.knn-board-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
}

.knn-board-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-color: var(--board-color, #FF6B6B);
}

/* 卡片头部 - 精简版 */
.board-card-header {
    padding: 18px 20px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
}

/* 添加深色半透明遮罩，确保文字可见 */
.board-card-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: 0;
}

.board-title {
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    margin: 0;
    padding: 0;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
    background: none !important;
    background-color: transparent !important;
    border: none !important;
    box-shadow: none !important;
}

/* 卡片主体 - 精简版 */
.board-card-body {
    padding: 15px;
    min-height: 280px;
    background: #f5f5f5;
}

.board-loading {
    text-align: center;
    padding: 40px 15px;
    color: #999;
    font-size: 14px;
}

/* 排行榜列表 - 全新结构 */
.board-rank-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.board-rank-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    background: #fff;
    border-radius: 10px;
    transition: all 0.3s;
    border: 1.5px solid transparent;
}

.board-rank-item:hover {
    transform: translateX(4px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    border-color: var(--board-color, #FF6B6B);
}

/* 前三名特殊样式 */
.board-rank-item.rank-1 {
    background: linear-gradient(90deg, #FFF9E6 0%, #fff 100%);
    border-color: #FFD700;
}

.board-rank-item.rank-2 {
    background: linear-gradient(90deg, #F5F5F5 0%, #fff 100%);
    border-color: #C0C0C0;
}

.board-rank-item.rank-3 {
    background: linear-gradient(90deg, #FFF4E6 0%, #fff 100%);
    border-color: #CD7F32;
}

/* 排名徽章 - 精简版 */
.board-rank-item .rank-badge {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #E0E0E0, #BDBDBD);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 14px;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.board-rank-item.rank-1 .rank-badge {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    font-size: 16px;
    width: 36px;
    height: 36px;
}

.board-rank-item.rank-2 .rank-badge {
    background: linear-gradient(135deg, #E8E8E8, #B0B0B0);
    width: 34px;
    height: 34px;
}

.board-rank-item.rank-3 .rank-badge {
    background: linear-gradient(135deg, #E6A864, #CD7F32);
    width: 34px;
    height: 34px;
}

/* 用户信息区 - 新布局 */
.board-rank-item .user-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    min-width: 0;
}

/* 左侧：头像+名字 */
.board-rank-item .user-left {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.board-rank-item .user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
    transition: transform 0.3s;
}

.board-rank-item.rank-1 .user-avatar {
    border-color: #FFD700;
    width: 40px;
    height: 40px;
}

.board-rank-item.rank-2 .user-avatar,
.board-rank-item.rank-3 .user-avatar {
    width: 38px;
    height: 38px;
}

.board-rank-item .user-avatar:hover {
    transform: scale(1.1);
}

.board-rank-item .user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.board-rank-item .user-name {
    font-size: 15px;
    font-weight: 700;
    color: #2c3e50;
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.3s;
}

.board-rank-item .user-name:hover {
    color: var(--board-color, #FF6B6B);
}

.board-rank-item.rank-1 .user-name {
    color: #B8860B;
    font-size: 16px;
}

/* 右侧：数值 */
.board-rank-item .user-value {
    font-size: 16px;
    font-weight: 900;
    color: #333;
    text-align: right;
    white-space: nowrap;
    flex-shrink: 0;
}

.board-rank-item .user-value .unit {
    font-size: 12px;
    font-weight: 600;
    color: #666;
    margin-left: 3px;
}

.board-rank-item.rank-1 .user-value {
    font-size: 18px;
    background: linear-gradient(135deg, #FFD700, #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.board-rank-item.rank-2 .user-value {
    font-size: 17px;
    color: #666;
}

.board-rank-item.rank-3 .user-value {
    font-size: 17px;
    color: #8B4513;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .knn-leaderboard-grid-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .knn-leaderboard-main-title {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .knn-leaderboard-main-title i {
        font-size: 36px;
    }
    
    .board-icon {
        font-size: 28px;
    }
    
    .board-title {
        font-size: 18px;
    }
    
    .board-card-body {
        padding: 12px;
        min-height: 240px;
    }
}

/* ===== 深色主题适配 - 使用zibll深色主题 ===== */
.dark-theme .knn-leaderboard-grid {
    background: transparent;
}

/* 主标题深色模式 - 关键修复 */
.dark-theme .knn-leaderboard-main-title {
    color: #e8e8e8 !important;
    background: none !important;
    -webkit-text-fill-color: #e8e8e8 !important;
}

.dark-theme .knn-leaderboard-main-title i {
    color: #FFD93D;
    -webkit-text-fill-color: #FFD93D;
}

/* 卡片容器 */
.dark-theme .knn-board-card {
    background: var(--main-bg-color, #323335);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    border-color: var(--main-border-color, rgba(114, 114, 114, 0.1));
}

.dark-theme .knn-board-card:hover {
    background: var(--main-bg-color, #323335);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.8);
    border-color: var(--board-color, #FF6B6B);
}

/* 卡片主体背景 */
.dark-theme .knn-board-card .board-card-body {
    background: var(--muted-bg-color, #2d2e31) !important;
}

.dark-theme .board-loading {
    color: var(--muted-color, #b4b6bb);
}

/* 排行榜项背景 */
.dark-theme .board-rank-item {
    background: var(--main-bg-color, #323335) !important;
    border-color: var(--main-border-color, rgba(114, 114, 114, 0.1));
}

.dark-theme .board-rank-item:hover {
    background: var(--body-bg-color, #292a2d) !important;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
    border-color: var(--board-color, #FF6B6B);
}

/* 前三名深色背景 */
.dark-theme .board-rank-item.rank-1 {
    background: linear-gradient(90deg, rgba(42, 36, 16, 0.5) 0%, var(--main-bg-color, #323335) 100%) !important;
    border-color: #FFD700;
}

.dark-theme .board-rank-item.rank-2 {
    background: linear-gradient(90deg, rgba(42, 42, 42, 0.5) 0%, var(--main-bg-color, #323335) 100%) !important;
    border-color: #C0C0C0;
}

.dark-theme .board-rank-item.rank-3 {
    background: linear-gradient(90deg, rgba(42, 33, 21, 0.5) 0%, var(--main-bg-color, #323335) 100%) !important;
    border-color: #CD7F32;
}

/* 文字颜色 - 使用zibll变量 */
.dark-theme .board-rank-item .user-name {
    color: var(--main-color, #e5eef7);
}

.dark-theme .board-rank-item .user-name:hover {
    color: var(--board-color, #FF6B6B);
}

.dark-theme .board-rank-item .user-value {
    color: var(--key-color, #f8fafc);
}

.dark-theme .board-rank-item .user-value .unit {
    color: var(--muted-color, #b4b6bb);
}

.dark-theme .board-rank-item.rank-1 .user-name {
    color: #FFD700;
}

.dark-theme .board-rank-item.rank-2 .user-value {
    color: #C0C0C0;
}

.dark-theme .board-rank-item.rank-3 .user-value {
    color: #E6A864;
}