/* 继承首页的马卡龙色系 */
        :root {
            --pink: #FFD6E0;
            --mint: #C1F2E9;
            --lavender: #E2D1F9;
            --peach: #FFC8A2;
            --blue: #A2D2FF;
            --yellow: #FFEEA2;
            --shadow: rgba(0, 0, 0, 0.1);
        }
        
        body {
            font-family: 'Comic Sans MS', '幼圆', sans-serif;
            margin: 0;
            padding: 0;
            background-color: var(--pink);
            color: #555;
        }
        
        header {
            background: linear-gradient(135deg, var(--lavender), var(--blue));
            padding: 20px 0;
            text-align: center;
            box-shadow: 0 4px 12px var(--shadow);
            position: relative;
            overflow: hidden;
        }
        
        .logo {
            font-size: 2.5rem;
            font-weight: bold;
            color: white;
            text-shadow: 2px 2px 4px var(--shadow);
            margin-bottom: 10px;
        }
        
        .tagline {
            font-size: 1.2rem;
            color: white;
            margin-bottom: 20px;
        }
        
        nav {
            display: flex;
            justify-content: center;
            background-color: white;
            padding: 10px 0;
            box-shadow: 0 2px 8px var(--shadow);
        }
        
        .nav-button {
            margin: 0 15px;
            padding: 10px 20px;
            background-color: var(--peach);
            border: none;
            border-radius: 50px;
            color: white;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            transform: scale(1);
            box-shadow: 0 4px 8px var(--shadow);
            position: relative;
            overflow: hidden;
        }
        
        .nav-button:hover {
            transform: scale(1.1);
            background-color: var(--yellow);
            color: #FF8C8C;
        }
        
        .nav-button:active {
            transform: scale(0.95);
        }
        
        main {
            padding: 30px;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .section-title {
            text-align: center;
            color: #FF8C8C;
            font-size: 2rem;
            margin-bottom: 30px;
            position: relative;
        }
        
        .section-title::after {
            content: '';
            display: block;
            width: 100px;
            height: 4px;
            background: linear-gradient(to right, var(--lavender), var(--blue));
            margin: 10px auto;
            border-radius: 2px;
        }
        
        /* 课程筛选 */
        .course-filter {
            background-color: white;
            border-radius: 20px;
            padding: 20px;
            margin-bottom: 30px;
            box-shadow: 0 8px 16px var(--shadow);
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        
        .filter-group {
            margin: 0 10px;
        }
        
        .filter-label {
            display: block;
            margin-bottom: 8px;
            color: #FF8C8C;
            font-weight: bold;
        }
        
        .filter-select {
            padding: 10px 15px;
            border: 2px solid var(--lavender);
            border-radius: 50px;
            background-color: white;
            font-family: inherit;
            cursor: pointer;
            outline: none;
            transition: all 0.3s ease;
        }
        
        .filter-select:hover {
            border-color: var(--blue);
            box-shadow: 0 0 0 3px rgba(162, 210, 255, 0.3);
        }
        
        .filter-button {
            padding: 10px 25px;
            background-color: var(--peach);
            color: white;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s ease;
            box-shadow: 0 4px 8px var(--shadow);
            align-self: flex-end;
        }
        
        .filter-button:hover {
            background-color: var(--yellow);
            color: #FF8C8C;
            transform: scale(1.05);
        }
        
        /* 课程列表 */
        .course-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 25px;
            margin-bottom: 40px;
        }
        
        .course-card {
            background-color: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 16px var(--shadow);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        
        .course-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 24px var(--shadow);
        }
        
        .course-image {
            height: 180px;
            background-color: var(--blue);
            display: flex;
            justify-content: center;
            align-items: center;
            color: white;
            font-size: 2rem;
            position: relative;
            overflow: hidden;
        }
        
        .course-image::after {
            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));
        }
        
        .course-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background-color: var(--yellow);
            color: #FF8C8C;
            padding: 5px 10px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: bold;
            box-shadow: 0 2px 5px var(--shadow);
        }
        
        .course-content {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        
        .course-title {
            font-size: 1.3rem;
            font-weight: bold;
            margin-bottom: 10px;
            color: #555;
        }
        
        .course-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 15px;
        }
        
        .course-meta-item {
            display: flex;
            align-items: center;
            font-size: 0.9rem;
            color: #777;
        }
        
        .course-meta-item i {
            margin-right: 5px;
            color: var(--blue);
        }
        
        .course-description {
            font-size: 0.95rem;
            color: #666;
            margin-bottom: 20px;
            line-height: 1.5;
            flex-grow: 1;
        }
        
        .course-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: auto;
        }
        
        .course-price {
            font-size: 1.2rem;
            font-weight: bold;
            color: #FF8C8C;
        }
        
        .course-price small {
            font-size: 0.9rem;
            color: #999;
            font-weight: normal;
        }
        
        .course-button {
            padding: 8px 20px;
            background-color: var(--peach);
            color: white;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s ease;
            box-shadow: 0 4px 8px var(--shadow);
        }
        
        .course-button:hover {
            background-color: var(--yellow);
            color: #FF8C8C;
            transform: scale(1.05);
        }
        
        /* 分页 */
        .pagination {
            display: flex;
            justify-content: center;
            margin-top: 40px;
        }
        
        .page-button {
            width: 40px;
            height: 40px;
            margin: 0 5px;
            background-color: white;
            border: none;
            border-radius: 50%;
            color: #555;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 8px var(--shadow);
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .page-button:hover {
            background-color: var(--blue);
            color: white;
            transform: scale(1.1);
        }
        
        .page-button.active {
            background-color: var(--peach);
            color: white;
        }
        
        .page-button.disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none !important;
        }
        
        /* 页脚 */
        footer {
            background: linear-gradient(135deg, var(--blue), var(--lavender));
            color: white;
            text-align: center;
            padding: 30px 0;
            margin-top: 50px;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        
        .footer-link {
            color: white;
            margin: 0 15px;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .footer-link:hover {
            color: var(--yellow);
            transform: scale(1.1);
        }
        
        .copyright {
            font-size: 0.9rem;
            opacity: 0.8;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .course-filter {
                flex-direction: column;
                align-items: stretch;
            }
            
            .filter-group {
                margin: 0 0 15px 0;
            }
            
            .filter-button {
                align-self: center;
            }
            
            .course-list {
                grid-template-columns: 1fr;
            }
            
            .course-footer {
                flex-direction: column;
                gap: 15px;
            }
            
            .course-button {
                width: 100%;
            }
        }