:root {
            --primary: #4361ee;
            --primary-light: #5c7cfa;
            --secondary: #3f37c9;
            --accent: #ff6b6b;
            --light: #f8f9fa;
            --light-gray: #f0f2f5;
            --dark: #2c3e50;
            --text: #34495e;
            --light-text: #7f8c8d;
            --success: #1dd1a1;
            --warning: #feca57;
            --border-radius: 12px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: linear-gradient(135deg, #f5f7ff 0%, #e4edf9 100%);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
            padding-top: 0px;
        }

        /* 导航栏样式 */
        .detailed-navbar {
            background-color: #fdfdfe;
            width: 100%;
            position: fixed;
            top: 0;
            left: 0;
            z-index: 1000;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }
        
        .detailed-nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 40px;
            min-height: 100px;
            max-width: 1400px;
            margin: 0 auto;
            width: 100%;
        }
        
        /* Logo 区域 */
        .detailed-logo {
            display: flex;
            align-items: center;
            gap: 18px;
            text-decoration: none;
            flex-shrink: 0;
        }
        
        .detailed-logo-icon {
            width: 60px;
            height: 60px;
            background: #f5f7ff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            box-shadow: 0 5px 15px rgba(92, 124, 250, 0.15);
            transition: all 0.3s ease;
            overflow: hidden;
        }
        
        .detailed-logo-icon img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            border-radius: 12px;
        }
        
        .detailed-logo:hover .detailed-logo-icon {
            transform: rotate(10deg) scale(1.05);
            box-shadow: 0 8px 20px rgba(92, 124, 250, 0.25);
        }
        
        .detailed-logo-text {
            font-size: 32px;
            font-weight: 800;
            color: #4a5568;
            letter-spacing: 0.8px;
            white-space: nowrap;
        }
        
        .detailed-logo-text span {
            background: linear-gradient(90deg, #5c7cfa, #4263eb);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        /* 导航菜单 */
        .detailed-nav-menu {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: nowrap;
            overflow-x: auto;
            padding: 5px 0;
            -ms-overflow-style: none;  /* IE and Edge */
            scrollbar-width: none;  /* Firefox */
        }
        
        .detailed-nav-menu::-webkit-scrollbar {
            display: none; /* Hide scrollbar for Chrome, Safari and Opera */
        }
        
        .detailed-nav-item {
            position: relative;
            padding: 5px 0;
            flex-shrink: 0;
        }
        
        .detailed-nav-link {
            text-decoration: none;
            color: #4a5568;
            font-weight: 700;
            font-size: 18px;
            transition: all 0.3s ease;
            position: relative;
            padding: 15px 20px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            white-space: nowrap;
        }
        
        /* 图标样式 */
        .detailed-nav-icon {
            display: inline-block;
            width: 24px;
            text-align: center;
            margin-right: 10px;
            font-size: 18px;
            color: #5c7cfa;
            transition: color 0.3s ease;
        }
        
        .detailed-nav-link:hover .detailed-nav-icon {
            color: currentColor;
        }
        
        .detailed-nav-item.detailed-active .detailed-nav-link .detailed-nav-icon {
            color: white;
        }
        
        /* 选中项样式 */
        .detailed-nav-item.detailed-active .detailed-nav-link {
            background: linear-gradient(135deg, #5c7cfa 0%, #4263eb 100%);
            color: white !important;
            box-shadow: 0 5px 15px rgba(92, 124, 250, 0.25);
        }
        
        .detailed-nav-link:hover {
            color: #5c7cfa;
        }
        
        .detailed-nav-link::after {
            content: '';
            position: absolute;
            bottom: 10px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: linear-gradient(90deg, #5c7cfa, #4263eb);
            border-radius: 2px;
            transition: width 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        }
        
        .detailed-nav-link:hover::after {
            width: 60%;
        }
        
        /* 汉堡菜单 - 移到左边 */
        .detailed-hamburger {
            display: none;
            cursor: pointer;
            width: 40px;
            height: 30px;
            position: relative;
            z-index: 100;
            order: -1; /* 将汉堡菜单移到最左边 */
            margin-right: 15px; /* 增加右边距 */
        }
        
        .detailed-hamburger span {
            display: block;
            position: absolute;
            height: 4px;
            width: 100%;
            background: #5c7cfa;
            border-radius: 4px;
            opacity: 1;
            left: 0;
            transform: rotate(0deg);
            transition: all 0.3s ease;
        }
        
        .detailed-hamburger span:nth-child(1) {
            top: 0;
        }
        
        .detailed-hamburger span:nth-child(2) {
            top: 13px;
            width: 85%;
        }
        
        .detailed-hamburger span:nth-child(3) {
            top: 26px;
        }
        
        /* 汉堡菜单激活状态 */
        .detailed-hamburger.detailed-active span {
            background: #4263eb;
        }
        
        .detailed-hamburger.detailed-active span:nth-child(1) {
            top: 13px;
            transform: rotate(135deg);
        }
        
        .detailed-hamburger.detailed-active span:nth-child(2) {
            opacity: 0;
            left: -30px;
        }
        
        .detailed-hamburger.detailed-active span:nth-child(3) {
            top: 13px;
            transform: rotate(-135deg);
        }
        
        /* 移动端菜单样式 */
        @media (max-width: 992px) {
            .detailed-nav-container {
                padding: 0 30px;
                justify-content: flex-start;
                position: relative;
                min-height: 80px;
            }
            
            .detailed-hamburger {
                display: block;
                margin-right: 15px;
                order: -1; /* 确保汉堡菜单在左侧 */
            }
            
            .detailed-nav-menu {
                position: absolute;
                top: 100%; 
                left: 0;
                width: 100%;
                flex-direction: column;
                background: #fdfdfe;
                padding: 15px 0;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
                transform: translateY(-100%);
                transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), 
                            opacity 0.4s ease;
                z-index: 99;
                border-radius: 0 0 15px 15px;
                gap: 0;
                opacity: 0;
                visibility: hidden;
                border-top: 1px solid rgba(92, 124, 250, 0.15);
                overflow: visible;
            }
            
            .detailed-nav-menu.detailed-active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            
            .detailed-nav-item {
                width: 100%;
                text-align: center;
                padding: 0;
                border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            }
            
            .detailed-nav-item:last-child {
                border-bottom: none;
            }
            
            .detailed-nav-link {
                padding: 18px 25px;
                margin: 0 20px;
                border-radius: 8px;
                transition: all 0.2s ease;
                justify-content: center;
            }
            
            .detailed-nav-link:hover {
                background: rgba(92, 124, 250, 0.08);
            }
            
            .detailed-nav-link::after {
                display: none;
            }
            
            .detailed-nav-item.detailed-active .detailed-nav-link {
                margin: 0 20px;
                box-shadow: 0 4px 12px rgba(92, 124, 250, 0.2);
            }
            
            /* 移动端图标显示优化 */
            .detailed-nav-icon {
                display: inline-block;
                margin-right: 12px;
                font-size: 20px;
            }
            
            .detailed-nav-link:active {
                transform: scale(0.96);
            }
            
            .detailed-logo {
                position: absolute;
                left: 50%;
                top: 50%;
                transform: translate(-50%, -50%);
                margin: 0;
            }
            
            .detailed-logo-icon {
                width: 50px;
                height: 50px;
            }
            
            .detailed-logo-text {
                font-size: 28px;
            }
            
            body {
                padding-top: 80px;
            }
        }

        /* 页面内容容器 */
        .page-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 40px 20px;
        }

        /* 英雄模块 - 全屏通栏渐变背景 */
        .hero-container {
            width: 100%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            height: 450px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: white;
            position: relative;
            overflow: hidden;
            margin-bottom: 10px;
        }


        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            padding: 0 20px;
        }

        .page-title {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 20px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }

        .page-subtitle {
            font-size: 22px;
            max-width: 700px;
            margin: 0 auto 30px;
            line-height: 1.7;
            opacity: 0.9;
        }

        /* 最新活动推荐模块 */
        .featured-event {
            background: linear-gradient(135deg, #5c7cfa 0%, #4263eb 100%);
            border-radius: 16px;
            padding: 40px;
            margin: 0 auto 60px;
            max-width: 1400px; /* 宽度设置为1400px */
            box-shadow: 0 20px 40px rgba(67, 97, 238, 0.3);
            color: white;
            position: relative;
            overflow: hidden;
        }

        .featured-event::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .featured-event::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 150px;
            height: 150px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .featured-badge {
            display: inline-block;
            padding: 8px 25px;
            background: white;
            color: var(--primary);
            border-radius: 30px;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .featured-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 15px;
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .featured-description {
            font-size: 18px;
            line-height: 1.7;
            max-width: 700px;
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }

        .featured-info {
            display: flex;
            gap: 30px;
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }

        .featured-info-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 500;
        }

        .featured-info-item i {
            font-size: 24px;
        }

        .featured-cta {
            display: inline-block;
            background: white;
            color: var(--primary);
            padding: 15px 40px;
            border-radius: 50px;
            text-decoration: none;
            font-size: 18px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            position: relative;
            z-index: 2;
        }

        .featured-cta:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
        }

        /* 分类区域 - 移除背景色 */
        .category-section {
            margin-bottom: 0px;
            padding: 30px 0;
            position: relative;
            overflow: hidden;
            background: none; /* 移除背景色 */
        }

        .category-section::before {
            content: none; /* 移除装饰背景 */
        }

        .category-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .category-header {
            display: flex;
            align-items: center;
            margin-bottom: 40px;
            color: var(--dark); /* 恢复深色文字 */
        }

        .category-icon {
            width: 60px;
            height: 60px;
            background: rgba(67, 97, 238, 0.1); /* 浅蓝色背景 */
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-right: 20px;
            color: var(--primary); /* 蓝色图标 */
        }

        .category-title {
            font-size: 36px;
            font-weight: 700;
        }

        .cards-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
            gap: 30px;
        }

        /* 卡片设计 - 恢复卡片模式 */
        .card {
            background: white; /* 恢复白色背景 */
            border-radius: var(--border-radius);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
            height: 100%;
            /* 移除边框和阴影 */
            border: none;
            box-shadow: none;
        }

        .card:hover {
            transform: translateY(-10px);
        }

        .card-badge {
            position: absolute;
            top: 20px;
            right: 0;
            padding: 8px 25px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 20px 0 0 20px;
            z-index: 2;
        }

        .badge-hot {
            background: linear-gradient(90deg, #ff6b6b, #ff8e8e);
            color: white;
        }

        .badge-new {
            background: linear-gradient(90deg, #4361ee, #5c7cfa);
            color: white;
        }

        .badge-urgent {
            background: linear-gradient(90deg, #ff9e2c, #ffb347);
            color: white;
        }

        .badge-recommended {
            background: linear-gradient(90deg, #1dd1a1, #00d2d3);
            color: white;
        }

        .card-header {
            padding: 25px 25px 15px;
            position: relative;
        }

        .card-category {
            display: inline-block;
            padding: 8px 20px;
            background: rgba(67, 97, 238, 0.1);
            color: var(--primary);
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .card-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--dark); /* 恢复深色文字 */
            margin-bottom: 15px;
            line-height: 1.4;
            display: flex;
            align-items: center;
        }

        .card-title i {
            margin-right: 12px;
            color: var(--primary);
            font-size: 24px;
        }

        .card-content {
            padding: 0 25px 20px;
            flex: 1;
        }

        .card-description {
            color: var(--text); /* 恢复深色文字 */
            margin-bottom: 25px;
            line-height: 1.7;
        }

        .deadline {
            background: rgba(67, 97, 238, 0.1);
            padding: 15px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            margin-top: auto;
        }

        .deadline i {
            font-size: 20px;
            color: var(--primary);
            margin-right: 12px;
            flex-shrink: 0;
        }

        .deadline-text {
            font-size: 16px;
            color: var(--primary);
            font-weight: 600;
            flex: 1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 10px;
            border-top: 1px solid rgba(0, 0, 0, 0.05);
        }

        .detail-btn {
            background: var(--primary);
            color: white;
            padding: 14px 20px;
            border-radius: 30px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
        }

        .detail-btn:hover {
            background: var(--secondary);
            transform: translateY(-3px);
        }

        .detail-btn i {
            margin-left: 8px;
            font-size: 14px;
        }

        .card-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .tag {
            padding: 6px 15px;
            background: rgba(67, 97, 238, 0.15);
            color: var(--primary);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }

        footer {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: white;
            padding: 2.5rem 0 1.5rem;
        }

        .copyright {
            padding-bottom: 15px;
            border-top: 0px solid #444;
            font-size: 0.85rem;
            color: white;
            text-align: center;
        }

        /* 动画效果 */
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0px); }
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .cards-container {
                grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            }
        }

        @media (max-width: 992px) {
            .hero-container {
                height: 350px;
                margin-bottom: 40px;
            }

            .page-title {
                font-size: 40px;
            }

            .page-subtitle {
                font-size: 20px;
            }

            .featured-event {
                padding: 30px;
            }

            .featured-title {
                font-size: 28px;
            }

            .featured-info {
                flex-direction: column;
                gap: 15px;
            }

            .category-title {
                font-size: 32px;
            }
        }

        @media (max-width: 768px) {
            .hero-container {
                height: 300px;
            }

            .page-title {
                font-size: 42px;
            }

            .featured-title {
                font-size: 24px;
            }

            .cards-container {
                grid-template-columns: 1fr;
                /* 移除左右内边距，让卡片撑满屏幕 */
                padding: 0;
            }

            .card {
                /* 移除圆角，使卡片边缘与屏幕对齐 */
                border-radius: 0;
                /* 添加左右外边距让内容有呼吸空间 */
                margin: 0 0 20px;
                /* 添加轻微阴影增强层次感 */
                box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            }

            .category-container {
                /* 移除分类容器的内边距 */
                padding: 0;
            }
        }

        @media (max-width: 576px) {
            body {
                padding-top: 80px;
            }

            .hero-container {
                height: 280px;
                margin-bottom: 30px;
            }

            .page-title {
                font-size: 42px;
            }

            .page-subtitle {
                font-size: 16px;
            }

            .featured-event {
                padding: 25px 20px;
            }

            .featured-title {
                font-size: 22px;
            }

            .featured-description {
                font-size: 16px;
            }

            .category-title {
                font-size: 28px;
            }

            .card-header {
                padding: 20px 20px 15px;
            }

            .card-title {
                font-size: 20px;
            }

            .card-content {
                padding: 0 20px 15px;
            }

            .card-footer {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
        }