/* 全局变量 - 丰富色彩 */
        :root {
            /* 主色调 */
            --primary: #4361ee;
            --primary-light: #4895ef;
            --primary-dark: #3a0ca3;
            
            /* 副色调 */
            --secondary: #f72585;
            --secondary-light: #ff4da6;
            --secondary-dark: #d9047c;
            
            /* 成功色 */
            --success: #4cc9f0;
            --success-light: #6bd4f5;
            --success-dark: #2bb4da;
            
            /* 警告色 */
            --warning: #ff9e00;
            --warning-light: #ffb133;
            --warning-dark: #e68a00;
            
            /* 强调色 */
            --accent-1: #7209b7;
            --accent-2: #3f37c9;
            --accent-3: #38b000;
            --accent-4: #ff0054;
            
            /* 中性色 */
            --white: #ffffff;
            --black: #000000;
            --gray-50: #f8f9fa;
            --gray-100: #e9ecef;
            --gray-200: #dee2e6;
            --gray-300: #ced4da;
            --gray-400: #adb5bd;
            --gray-500: #6c757d;
            --gray-600: #495057;
            --gray-700: #343a40;
            --gray-800: #212529;
            --gray-900: #121416;
            
            /* 圆角 */
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-2xl: 32px;
            
            /* 阴影 */
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.15);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.18);
            
            /* 过渡 */
            --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-normal: 350ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        /* 重置与基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
            line-height: 1.7;
            color: var(--gray-800);
            background: linear-gradient(135deg, #f5f7ff 0%, #f0f2ff 100%);
            min-height: 100vh;
            font-weight: 400;
        }
        
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Rubik', sans-serif;
            font-weight: 700;
        }
        
        .container {
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        
        .main-wrapper {
            display: flex;
            min-height: 100vh;
        }
        
        /* 左侧边栏 */
        .sidebar {
            width: 280px;
            background: linear-gradient(180deg, var(--primary-dark) 0%, var(--accent-1) 100%);
            color: var(--white);
            padding: 2rem 1.5rem;
            position: sticky;
            top: 0;
            height: 100vh;
            overflow-y: auto;
            box-shadow: var(--shadow-lg);
            z-index: 100;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 3rem;
            padding-bottom: 1.5rem;
            border-bottom: 2px solid rgba(255, 255, 255, 0.2);
        }
        
        .logo-icon {
            width: 50px;
            height: 50px;
            background: var(--white);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.5rem;
        }
        
        .logo-text {
            font-size: 1.8rem;
            font-weight: 800;
        }
        
        .nav-menu {
            list-style: none;
            margin-bottom: 3rem;
        }
        
        .nav-item {
            margin-bottom: 0.75rem;
        }
        
        .nav-link {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem 1.25rem;
            border-radius: var(--radius-lg);
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            transition: all var(--transition-fast);
            font-weight: 500;
        }
        
        .nav-link:hover,
        .nav-link.active {
            background: rgba(255, 255, 255, 0.15);
            color: var(--white);
            transform: translateX(5px);
        }
        
        .nav-icon {
            font-size: 1.25rem;
            width: 24px;
            text-align: center;
        }
        
        /* 侧边栏统计 */
        .sidebar-stats {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            margin-top: 2rem;
        }
        
        .stat-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.25rem;
            padding-bottom: 1.25rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .stat-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        
        .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }
        
        .stat-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--white);
        }
        
        /* 右侧主内容区 */
        .main-content {
            flex: 1;
            padding: 2rem;
        }
        
        /* 顶部栏 */
        .top-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 2px solid var(--gray-100);
        }
        
        .top-title h1 {
            font-size: 2.2rem;
            color: var(--gray-900);
            background: linear-gradient(90deg, var(--primary) 0%, var(--accent-1) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .top-title p {
            color: var(--gray-600);
            font-size: 1rem;
        }
        
        .user-actions {
            display: flex;
            gap: 1rem;
            align-items: center;
        }
        
        /* 搜索框 */
        .search-box {
            position: relative;
            width: 300px;
        }
        
        .search-input {
            width: 100%;
            padding: 0.85rem 1.25rem 0.85rem 3rem;
            border: none;
            border-radius: var(--radius-xl);
            background: var(--white);
            color: var(--gray-800);
            font-size: 1rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }
        
        .search-input:focus {
            outline: none;
            box-shadow: var(--shadow-md);
        }
        
        .search-icon {
            position: absolute;
            left: 1.25rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--gray-500);
        }
        
        /* 主内容网格 */
        .content-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
        }
        
        /* 卡片通用样式 */
        .card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--gray-100);
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        
        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
        }
        
        .card-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--gray-900);
        }
        
        .view-all {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: color var(--transition-fast);
        }
        
        .view-all:hover {
            color: var(--primary-dark);
        }
        
        /* 直播卡片 */
        .live-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        
        .live-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        
        .live-card:nth-child(2) {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
        }
        
        .live-card:nth-child(3) {
            background: linear-gradient(135deg, var(--success) 0%, var(--success-light) 100%);
        }
        
        .live-card:hover {
            transform: translateY(-8px) scale(1.02);
            box-shadow: var(--shadow-xl);
        }
        
        .live-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
            color: var(--white);
            padding: 0.25rem 0.75rem;
            border-radius: var(--radius-sm);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }
        
        .live-content {
            padding: 1.5rem;
        }
        
        .teams {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
        }
        
        .team {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            flex: 1;
        }
        
        .team-logo {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 0.75rem;
            color: var(--white);
            font-size: 2rem;
        }
        
        .team-name {
            font-weight: 600;
            font-size: 1.1rem;
        }
        
        .vs {
            font-weight: 800;
            font-size: 1.5rem;
            margin: 0 1rem;
            opacity: 0.9;
        }
        
        .match-info {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            padding: 1rem;
            font-size: 0.9rem;
        }
        
        /* 右侧边栏 */
        .right-sidebar .card {
            margin-bottom: 2rem;
        }
        
        .right-sidebar .card:last-child {
            margin-bottom: 0;
        }
        
        /* 今日焦点 */
        .highlight-card {
            background: linear-gradient(135deg, var(--accent-1) 0%, #9d4edd 100%);
            color: var(--white);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            position: relative;
            overflow: hidden;
        }
        
        .highlight-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 150px;
            height: 150px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }
        
        .highlight-badge {
            display: inline-block;
            background: var(--warning);
            color: var(--white);
            padding: 0.25rem 0.75rem;
            border-radius: var(--radius-sm);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        
        /* 排行榜 */
        .rankings-list {
            list-style: none;
        }
        
        .ranking-item {
            display: flex;
            align-items: center;
            padding: 1rem;
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            background: var(--gray-50);
            transition: all var(--transition-fast);
        }
        
        .ranking-item:hover {
            background: var(--gray-100);
            transform: translateX(5px);
        }
        
        .ranking-item:nth-child(1) .rank {
            background: var(--warning);
        }
        
        .ranking-item:nth-child(2) .rank {
            background: var(--gray-500);
        }
        
        .ranking-item:nth-child(3) .rank {
            background: var(--accent-3);
        }
        
        .rank {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin-right: 1rem;
            flex-shrink: 0;
        }
        
        .ranking-info {
            flex: 1;
        }
        
        .ranking-name {
            font-weight: 600;
            color: var(--gray-900);
        }
        
        .ranking-score {
            font-weight: 700;
            color: var(--primary);
            font-size: 1.1rem;
        }
        
        /* 热门话题 */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
            gap: 0.75rem;
        }
        
        .topic-tag {
            background: var(--gray-100);
            color: var(--gray-700);
            padding: 0.75rem;
            border-radius: var(--radius-md);
            text-align: center;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        
        .topic-tag:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-3px);
        }
        
        /* 体育新闻 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        
        .news-item {
            display: flex;
            gap: 1rem;
            padding: 1rem;
            border-radius: var(--radius-md);
            background: var(--gray-50);
            transition: all var(--transition-fast);
        }
        
        .news-item:hover {
            background: var(--gray-100);
        }
        
        .news-image {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 1.5rem;
        }
        
        .news-content {
            flex: 1;
        }
        
        .news-title {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--gray-900);
        }
        
        .news-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--gray-500);
        }
        
        /* 录像回放 */
        .replay-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        
        .replay-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--white);
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        
        .replay-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        
        .thumbnail {
            height: 140px;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .play-button {
            position: absolute;
            width: 48px;
            height: 48px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            transition: all var(--transition-fast);
        }
        
        .replay-card:hover .play-button {
            background: var(--white);
            transform: scale(1.1);
        }
        
        .replay-info {
            padding: 1.25rem;
        }
        
        .replay-title {
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--gray-900);
        }
        
        .replay-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--gray-500);
        }
        
        /* 合作伙伴 */
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
            gap: 1rem;
        }
        
        .partner-item {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            color: var(--gray-700);
            transition: all var(--transition-fast);
            border: 1px solid var(--gray-200);
        }
        
        .partner-item:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        
        /* 底部 */
        .bottom-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid var(--gray-100);
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            
            .right-sidebar {
                display: grid;
                grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
                gap: 2rem;
            }
        }
        
        @media (max-width: 992px) {
            .main-wrapper {
                flex-direction: column;
            }
            
            .sidebar {
                width: 100%;
                height: auto;
                position: static;
            }
            
            .nav-menu {
                display: flex;
                overflow-x: auto;
                margin-bottom: 1.5rem;
            }
            
            .nav-item {
                margin-bottom: 0;
                margin-right: 0.5rem;
            }
            
            .nav-link {
                white-space: nowrap;
            }
            
            .sidebar-stats {
                display: flex;
                justify-content: space-between;
                flex-wrap: wrap;
            }
            
            .stat-item {
                flex: 1;
                min-width: 120px;
                margin-right: 1rem;
            }
        }
        
        @media (max-width: 768px) {
            .top-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 1.5rem;
            }
            
            .search-box {
                width: 100%;
            }
            
            .user-actions {
                width: 100%;
                justify-content: space-between;
            }
            
            .live-grid,
            .replay-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 576px) {
            .container {
                padding: 0 1rem;
            }
            
            .main-content {
                padding: 1.5rem;
            }
            
            .card {
                padding: 1.25rem;
            }
            
            .top-title h1 {
                font-size: 1.75rem;
            }
        }
        
        /* 工具类 */
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mb-6 { margin-bottom: 3rem; }
        
        .mt-1 { margin-top: 0.5rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .mt-4 { margin-top: 2rem; }
        .mt-6 { margin-top: 3rem; }
        
        .text-center { text-align: center; }
        .text-right { text-align: right; }
        
        .gradient-text {
            background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        
        .badge-primary {
            background: var(--primary);
            color: var(--white);
        }
        
        .badge-secondary {
            background: var(--secondary);
            color: var(--white);
        }
        
        .badge-success {
            background: var(--success);
            color: var(--white);
        }
        
        .live-content img{
            width: 100%;
        }
        .cursor_pointer{
            cursor: pointer;
        }
        .time{
    text-align: center;
    display: block;
}
.news-image img{
    width: 100%;
}


.match-info div:first-child {
    font-weight: bold;
    color: #333;
}
.watch-now-btn {
    text-align: center;
    margin-top: 5px;
}
.btn-watch {
    display: inline-block;
    background: linear-gradient(90deg, #ff5722, #ff784b);
    color: white;
    text-decoration: none;
    padding: 10px 24px;
    border-radius: 40px;
    font-weight: bold;
    font-size: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border: none;
    cursor: pointer;
}
.btn-watch:hover {
    background: linear-gradient(90deg, #ff784b, #ff5722);
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(255,87,34,0.4);
    color: white;
    text-decoration: none;
}

/* 卡片容器模拟原有侧边栏，让按钮组更显眼 */
        .demo-container {
            max-width: 880px;
            width: 100%;
            background: rgba(18, 22, 32, 0.65);
            backdrop-filter: blur(8px);
            border-radius: 44px;
            padding: 28px 24px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: 0 25px 45px rgba(0, 0, 0, 0.5);
        }

        /* 主样式 —— 四个超大按钮区域，突出绝对可点感 */
        .sidebar-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            align-items: stretch;
        }

        /* 每一个入口按钮——完全抛弃平淡卡片感，做成明显3D按钮形态 */
        .entrance-btn {
            flex: 1;
            min-width: 180px;          /* 保证每个按钮足够宽，容易点击 */
            background: linear-gradient(135deg, #f6f9fc 0%, #eef2f8 100%);
            border-radius: 38px;        /* 更圆润饱满，像浮动按钮 */
            padding: 20px 12px;
            text-align: center;
            text-decoration: none;
            transition: all 0.25s cubic-bezier(0.2, 0.9, 0.4, 1.1);
            box-shadow: 0 12px 18px -6px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.5) inset, 0 -2px 0 rgba(0, 0, 0, 0.05) inset;
            cursor: pointer;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            border: none;
            /* 增加微光效，更立体 */
        }

        /* 每个按钮专属亮色光晕 (不同主题色调) 让按钮更跳脱 */
        .nba-entrance {
            background: linear-gradient(135deg, #fff5f5 0%, #ffe0e0 100%);
            border-bottom: 4px solid #e13b3f;
        }
        .basketball-entrance {
            background: linear-gradient(135deg, #fff4e8 0%, #ffe2c7 100%);
            border-bottom: 4px solid #f39c12;
        }
        .football-entrance {
            background: linear-gradient(135deg, #eef9ff 0%, #d4eaff 100%);
            border-bottom: 4px solid #2c7da0;
        }
        .beauty-entrance {
            background: linear-gradient(135deg, #fff0f7 0%, #ffdeec 100%);
            border-bottom: 4px solid #e84393;
        }

        /* 按钮内部主标 */
        .entrance-btn .stat-label {
            font-size: 1.3rem;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 12px;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
            color: #1f2a3e;
        }

        /* 辅助副标/装饰文字 —— 更强调直播特性 */
        .entrance-btn .stat-value {
            font-size: 1rem;
            font-weight: 600;
            background: rgba(0, 0, 0, 0.65);
            backdrop-filter: blur(4px);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 80px;
            color: white;
            box-shadow: inset 0 1px 2px rgba(0,0,0,0.2), 0 1px 0 rgba(255,255,255,0.7);
            transition: all 0.2s;
        }

        /* 每个按钮不同的副标背景色加强风格 */
        .nba-entrance .stat-value { background: #c0392b; box-shadow: 0 2px 6px rgba(192,57,43,0.4); }
        .basketball-entrance .stat-value { background: #e67e22; box-shadow: 0 2px 6px rgba(230,126,34,0.4); }
        .football-entrance .stat-value { background: #1f6392; box-shadow: 0 2px 6px rgba(31,99,146,0.4); }
        .beauty-entrance .stat-value { background: #b13e6b; box-shadow: 0 2px 6px rgba(177,62,107,0.4); }

        /* 悬浮效果：明显抬高、阴影加重，色彩微变，增加点击反馈预兆 */
        .entrance-btn:hover {
            transform: translateY(-8px);
            box-shadow: 0 24px 28px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.9) inset;
        }

        /* 不同按钮悬浮时加深底部边框感、并且内部文字微移 */
        .entrance-btn:hover .stat-label {
            transform: scale(1.02);
            text-shadow: 0 1px 2px rgba(0,0,0,0.1);
        }

        .entrance-btn:hover .stat-value {
            transform: scale(1.02);
            filter: brightness(1.05);
        }

        /* 点击活跃反馈——按下去的效果，更像真实按钮 */
        .entrance-btn:active {
            transform: translateY(2px);
            transition: 0.05s linear;
            box-shadow: 0 8px 12px -4px rgba(0, 0, 0, 0.5), inset 0 1px 3px rgba(0,0,0,0.2);
        }

        /* 增加鼠标悬浮时的额外小箭头或指示器，强化「入口感」 */
        .entrance-btn::after {
            content: "▶";
            position: absolute;
            right: 18px;
            top: 50%;
            transform: translateY(-50%) scale(0.7);
            opacity: 0;
            transition: all 0.2s ease;
            font-size: 20px;
            color: rgba(0, 0, 0, 0.5);
            font-weight: bold;
            pointer-events: none;
        }

        .entrance-btn:hover::after {
            opacity: 0.8;
            right: 22px;
            transform: translateY(-50%) scale(1);
            color: currentColor;
        }

        /* 为每个按钮定制伪元素箭头色调 */
        .nba-entrance:hover::after { color: #e13b3f; }
        .basketball-entrance:hover::after { color: #f39c12; }
        .football-entrance:hover::after { color: #2c7da0; }
        .beauty-entrance:hover::after { color: #e84393; }

        /* 保证按钮在任何触屏设备都有明显的点击反馈 */
        @media (max-width: 780px) {
            .sidebar-stats {
                gap: 16px;
            }
            .entrance-btn {
                min-width: 160px;
                padding: 18px 10px;
            }
            .entrance-btn .stat-label {
                font-size: 1.1rem;
            }
            .entrance-btn .stat-value {
                font-size: 0.85rem;
                padding: 5px 12px;
            }
        }

        @media (max-width: 640px) {
            .entrance-btn {
                min-width: calc(50% - 16px);
                flex: 1 0 auto;
            }
            .entrance-btn::after {
                display: none; /* 移动端去掉箭头，保持简洁但依然立体 */
            }
            .entrance-btn:hover {
                transform: translateY(-4px);
            }
        }

        /* 额外增加一个 “click me” 光标细节 让所有按钮都显示手型 */
        .entrance-btn {
            cursor: pointer;
        }

        /* 当hover上去时模拟发光边框强调互动性 */
        .entrance-btn:hover {
            background: radial-gradient(ellipse at 30% 40%, rgba(255,255,240,0.9), rgba(250,245,235,0.95));
        }
        /* 个性化悬浮渐变增强 */
        .nba-entrance:hover { background: radial-gradient(ellipse at 30% 40%, #fff3f3, #ffdddd); }
        .basketball-entrance:hover { background: radial-gradient(ellipse at 30% 40%, #fff2e6, #ffebd2); }
        .football-entrance:hover { background: radial-gradient(ellipse at 30% 40%, #e6f4ff, #cde9ff); }
        .beauty-entrance:hover { background: radial-gradient(ellipse at 30% 40%, #ffeef5, #ffdfed); }