:root {
            --primary-color: #07C160;
            --secondary-color: #2A2E3B;
            --accent-color: #FF9500;
            --light-bg: #F5F7FA;
            --dark-bg: #2A2E3B;
            --text-color: #333;
            --text-light: #666;
            --text-lighter: #999;
            --white: #FFFFFF;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 12px;
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
 a{text-decoration: none;
        }
        body {
            font-family: 'Noto Sans SC', sans-serif;
            background-color: var(--light-bg);
            color: var(--text-color);
            line-height: 1.6;
        }

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

        header {
            background: linear-gradient(135deg, var(--primary-color), #05a14e);
            color: var(--white);
            padding: 20px 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            display: flex;
            align-items: center;
        }
  .logo a{
        font-size: 28px;
               color: var(--white);
                   text-decoration: none;
        }
        
    .logo img {
    margin-right: 10px;
     width: 28px;
    height: 28px;
        }
        .logo i {
            margin-right: 10px;
            font-size: 28px;
        }

        .search-container {
            position: relative;
            width: 50%;
        }

        .search-input {
            width: 100%;
            padding: 12px 20px;
            border-radius: 50px;
            border: none;
            font-size: 16px;
            box-shadow: var(--shadow);
            padding-right: 50px;
            transition: var(--transition);
        }

        .search-input:focus {
            outline: none;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
        }

        .search-btn {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--primary-color);
            color: var(--white);
            border: none;
            border-radius: 50%;
            width: 36px;
            height: 36px;
            cursor: pointer;
            transition: var(--transition);
        }

        .search-btn:hover {
            background: #05a14e;
        }

        /* 修复后的广告位样式 - 电脑和手机都适用 */
        .ad-banner {
            background: linear-gradient(135deg, #07C160 0%, #05a14e 100%);
            border-radius: var(--radius);
            padding: 1.5rem;
            margin: 2rem 0;
            text-align: center;
            color: var(--white);
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
            width: 100%;
        }

        .ad-banner h3 {
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
            position: relative;
            z-index: 2;
        }

        .ad-banner p {
            margin-bottom: 1rem;
            position: relative;
            z-index: 2;
            opacity: 0.9;
            font-size: 1rem;
        }

        .ad-banner .btn {
            background-color: var(--white);
            color: var(--primary-color);
            padding: 10px 25px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            display: inline-block;
            transition: all 0.3s ease;
            position: relative;
            z-index: 2;
            border: none;
            cursor: pointer;
            font-size: 1rem;
        }

        .ad-banner .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            background-color: rgba(255, 255, 255, 0.95);
        }

        .ad-banner::before {
            content: "";
            position: absolute;
            top: -50px;
            right: -50px;
            width: 150px;
            height: 150px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .ad-banner::after {
            content: "";
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 100px;
            height: 100px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .main-content {
            display: grid;
            grid-template-columns: 1fr;
            gap: 30px;
        }

        .groups-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin-bottom: 40px;
        }

        .group-card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
        }

        .group-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
        }

        .group-header {
            padding: 20px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .group-info {
            flex: 1;
        }

        .group-title {
            font-weight: 500;
            font-size: 18px;
            margin-bottom: 8px;
            color: var(--secondary-color);
        }

        .group-time {
            font-size: 14px;
            color: var(--text-light);
            display: flex;
            align-items: center;
        }

        .group-time i {
            margin-right: 5px;
            font-size: 12px;
        }

        .group-qrcode {
            padding: 20px;
            display: none;
            text-align: center;
            background: rgba(7, 193, 96, 0.05);
        }

        .qrcode-img {
            width: 300px;
            height: 300px;
            margin: 0 auto;
            border: 1px solid rgba(0, 0, 0, 0.1);
        }

        .qrcode-desc {
            margin-top: 15px;
            color: var(--text-light);
            font-size: 14px;
        }

        .pagination {
            display: flex;
            justify-content: center;
            margin: 40px 0;
        }

        .pagination-list {
            display: flex;
            list-style: none;
            gap: 8px;
        }

        .pagination-item {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: var(--white);
            box-shadow: var(--shadow);
            cursor: pointer;
            transition: var(--transition);
                margin: 4px;
        }



        .pagination-item.active {
            background: var(--primary-color);
            color: var(--white);
            font-weight: 500;
        }
        
 .pagination-item a{
    color: var(--primary-color);
    font-weight: 500;
        }
        .pagination-item.disabled {
            opacity: 0.5;
            pointer-events: none;
        }

        footer {
            background: var(--primary-color);
            color: var(--white);
            padding: 30px 0;
            margin-top: 50px;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .copyright {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.9);
        }

        .social-links {
            display: flex;
            gap: 15px;
        }

        .social-link {
            color: var(--white);
            font-size: 18px;
            transition: var(--transition);
        }

        .social-link:hover {
            color: var(--secondary-color);
        }

        .loading {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 200px;
        }

        .spinner {
            width: 40px;
            height: 40px;
            border: 4px solid rgba(7, 193, 96, 0.2);
            border-radius: 50%;
            border-top-color: var(--primary-color);
            animation: spin 1s ease-in-out infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        .empty-state {
            text-align: center;
            padding: 50px 0;
            grid-column: 1 / -1;
        }

        .empty-icon {
            font-size: 60px;
            color: var(--text-lighter);
            margin-bottom: 20px;
        }

        .empty-text {
            font-size: 18px;
            color: var(--text-light);
        }

        .floating-btn {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 60px;
            height: 60px;
            background: var(--primary-color);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            box-shadow: 0 4px 20px rgba(7, 193, 96, 0.3);
            cursor: pointer;
            z-index: 90;
            transition: var(--transition);
        }

        .floating-btn:hover {
            transform: scale(1.1);
            background: #05a14e;
        }

        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                gap: 15px;
            }
            
            .logo {
                margin-bottom: 10px;
            }
            
            .search-container {
                width: 100%;
            }
            
            .pagination-list {
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .footer-content {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }

.floating-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex
;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 4px 20px rgba(7, 193, 96, 0.3);
    cursor: pointer;
    z-index: 90;
    transition: var(--transition);
}
            /* 手机端广告位调整 */
            .ad-banner {
                padding: 1.2rem;
                margin: 1.5rem 0;
            }
            
            .ad-banner h3 {
                font-size: 1.3rem;
            }
            
            .ad-banner p {
                font-size: 0.9rem;
            }
            
            .ad-banner .btn {
                padding: 8px 20px;
                font-size: 0.9rem;
            }
            
            .ad-banner::before,
            .ad-banner::after {
                display: none; /* 手机端隐藏装饰元素 */
            }
        }
		
		 .group-qrcode.show {
            display: block;
            animation: fadeIn 0.5s;
        }
        
        .group-qrcode img {
    border-radius: 5px;
    margin: 5px 0;
    max-width: 100%;
    height: auto !important;
}