:root {
            --primary-color: #212326;
            --secondary-color: #02a7eb;
            --accent-color: #e53e3e;
            --light-color: #f8f9fa;
            --dark-color: #2d3748;
            --text-color: #2d3748;
            --text-light: #718096;
            --border-radius: 10px;
            --box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --transition: all 0.4s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
 
        
        /* 响应式宽度设置 */
        .container {
            width: 1500px;
            max-width: 100%;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        @media screen and (max-width: 1560px) {
            .container {
                width: 85%;
            }
        }
        
        @media screen and (max-width: 1280px) {
            .container {
                width: 96%;
            }
        }
        
        @media screen and (max-width: 992px) {
            .container {
                width: 98%;
                padding: 0 15px;
            }
        }
    
       
        
        /* 通用内容区块样式 */
        .section {
            padding: 90px 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 70px;
        }
        
        .section-header h2 {
            font-size: 42px;
            color: var(--primary-color);
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
            font-weight: 700;
        }
        
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 5px;
            background-color: var(--secondary-color);
            border-radius: 3px;
        }
        
        .section-header p {
            color: var(--text-light);
            max-width: 800px;
            margin: 20px auto 50px;
            line-height: 1.7;
        }
        
        /* 学校简介 */
        .intro-content {
            display: flex;
            align-items: flex-start;
            gap: 60px;
            margin-bottom: 80px;
        }
        
        .intro-text {
            flex: 1; 
        }
        
        .intro-text h3 {
            font-size: 34px;
            color: var(--primary-color);
            margin-bottom: 32px;
            font-weight: 700;
        }
        
        .intro-text p {
            margin-bottom: 20px;
          
            line-height: 1.9;
            color: var(--text-color);
        }
        
        .intro-image {
            flex: 1;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            height: 530px;
        }
        
        .intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .intro-image img:hover {
            transform: scale(1.05);
        }
        
        /* 学校文化展示 */
        .culture-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 35px;
            margin-top: 50px;
        }
        
        .culture-card {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 35px 30px;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            border-left: 5px solid var(--secondary-color);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        
        .culture-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        .culture-icon {
            font-size: 36px;
            color: var(--secondary-color);
            margin-bottom: 20px;
        }
        
        .culture-card h4 {
            font-size: 21px;
            color: var(--primary-color);
            margin-bottom: 15px;
            font-weight: 700;
        }
        
        .culture-card p {
            color: var(--text-color);
            font-size: 17px;
            line-height: 1.8;
            flex-grow: 1;
        }
        @media screen and (max-width: 1560px) {
    .culture-card p {
            color: var(--text-color);
            font-size: 16px;
            line-height: 1.7;
            flex-grow: 1;
        }
}
@media screen and (max-width: 1280px) {
    .culture-card p {
            color: var(--text-color);
            font-size: 15px;
            line-height: 1.7;
            flex-grow: 1;
        }
}
  @media screen and (max-width: 768px) {
  .culture-card {
                padding: 20px 30px;
        }
		     .culture-card h4 {
            font-size: 21px;
            margin-bottom: 10px;
        }
        
        .culture-card p {
            font-size: 15px;
            line-height: 1.5;
       
        }
	  }	
		
        .culture-card.highlight {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
        }
        
        .culture-card.highlight h4,
        .culture-card.highlight p {
            color: white;
        }
        
        .culture-card.highlight .culture-icon {
            color: white;
        }
        
        /* 校长寄语 */
        .principal-message {
            background-color: #fafafa;
        }
        
        .message-content {
            display: flex;
          align-items: flex-start;
            gap: 60px;
			 display: flex;
    align-items: flex-start; 
    height: 100%; 
    max-height: none;
        }
        
     .message-image {
    flex: 1;
    overflow: hidden;
    
}

.message-image img {
    width: 100%;
     height: auto;
    object-fit: contain; 
    object-position: top; 
}
        
      .message-text {
    flex: 1;
    padding: 50px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    position: relative;
}

     .message-text h4 { font-weight:normal; line-height:1.3;padding-bottom:22px; padding-top:15px }   
        .message-text::before {
            content: '"';
            position: absolute;
            top: -40px;
            left: 40px;
            font-size: 140px;
            color: var(--secondary-color);
            opacity: 0.2;
            font-family: Georgia, serif;
            font-weight: bold;
        }
        
        .message-text p {
            font-size: 17px;
            line-height: 1.9;
            margin-bottom: 8px;
            color: var(--text-color);
            font-weight: 400;
        }
        
        .principal-info {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 0px;
            padding-bottom: 30px;
            border-bottom: 1px solid #eee;
			margin-bottom:20px
        }
        
        .principal-signature {
            font-family: 'Dancing Script', cursive;
            font-size: 36px;
            color: var(--primary-color);
            font-weight: bold;
        }
        
        .principal-title h4 {
            font-size: 24px;
            color: var(--primary-color);
            margin-bottom: 8px;padding-bottom:0px; padding-top:10px 
        }
        
        .principal-title p {
            color: var(--text-color);
            font-weight: 400;
            font-size: 17px;
			line-height: 1.9;
            margin: 0; padding-top:6px
        }
			 .meishu-text {
            margin-bottom: 40px; margin-top:-30px;
			font-size:17px;
            line-height: 1.9;
            color: var(--text-color);
        }
		 .meishu-text p { padding-top:6px}
        @media screen and (max-width: 1560px) {
    .message-text p {  font-size: 15px;}
	.message-text h4 { font-size:28px }  
    .principal-title h4 {font-size: 22px; }
    .principal-title p { font-size: 15px;}
}
@media screen and (max-width: 1280px) {
    .message-text p {  font-size: 15px;}
	.message-text h4 { font-size:24px } 
    .principal-title h4 {font-size: 20px; }
        .principal-title p { font-size: 15px; }
}
     @media screen and (max-width: 768px) {


        .principal-title p { font-size: 15px; }
				 .meishu-text {
            margin-bottom: 40px; margin-top:-10px;
			font-size:15px;
            line-height: 1.9;
            color: var(--text-color);
        }
}
        /* 师资团队 */
        .teachers {
            background-color: white;
        }
        
        .teacher-tabs {
            display: flex;
            justify-content: center;
            margin-bottom: 50px;
            border-bottom: 2px solid #eee;
        }
        
        .tab-button {
            background: none;
            border: none;
            padding: 15px 40px;
            font-size: 18px;
            font-weight: 600;
            color: var(--text-light);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }
        
        .tab-button.active {
            color: var(--secondary-color);
        }
        
        .tab-button.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: var(--secondary-color);
        }
        
        .teacher-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        
        .teacher-card {
            background-color: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            cursor: pointer;
        }
        
        .teacher-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
        }
        
        .teacher-image {
            height: 360px;
            overflow: hidden;
        }
        
        .teacher-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
             object-position: top;
       transition: var(--transition);
        }
        
        .teacher-card:hover .teacher-image img {
            transform: scale(1.08);
        }
        
        .teacher-info {
            padding: 25px;
            text-align: center;
        }
        
        .teacher-info h3 {
            font-size: 22px;
            color: var(--primary-color);
            margin-bottom: 8px;
            font-weight: 700;
        }
        
        .teacher-title {
            color: var(--secondary-color);
            font-weight: 600;
            margin-bottom: 5px;
            font-size: 16px;
        }
        
        .teacher-desc {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.5;
            margin-top: 10px;
        }
		
		  /* 师资团队分页样式 */
        .teacher-pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            margin-top: 50px;
            gap: 20px;
        }
        
        .teacher-page-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: white;
            border: 2px solid var(--secondary-color);
            color: var(--secondary-color);
            font-size: 20px;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .teacher-page-btn:hover:not(:disabled) {
            background-color: var(--secondary-color);
            color: white;
            transform: scale(1.1);
        }
        
        .teacher-page-btn:disabled {
            opacity: 0.4;
            cursor: not-allowed;
            border-color: #ccc;
            color: #ccc;
        }
        
        .teacher-page-info {
            color: var(--text-light);
            font-size: 16px;
            font-weight: 500;
        }
        
        
        /* 师资详情模态框 */
        .teacher-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.8);
            z-index: 200000;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }
        
        .modal-content {
            background-color: white;
            border-radius: var(--border-radius);
            max-width: 900px;
            width: 100%;
            max-height: 90vh;
            overflow-y: auto;
            position: relative;
            animation: modalFadeIn 0.4s ease;
        }
        
        @keyframes modalFadeIn {
            from { opacity: 0; transform: translateY(-30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .close-modal {
            position: absolute;
            top: 20px;
            right: 25px;
            font-size: 40px;
            color: var(--text-light);
            cursor: pointer;
            z-index: 10;
            transition: var(--transition);
        }
        
        .close-modal:hover {
            color: var(--accent-color);
        }
        
        .modal-body {
            display: flex;
            flex-wrap: wrap;
            padding: 0;
        }
        
        .modal-image {
            flex: 1;
            min-width: 300px;
            height: 500px;
        }
        
        .modal-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
			object-position: top;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
        }
        
        .modal-info {
            flex: 1;
            min-width: 300px;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: top;
        }
        
        .modal-info h3 {
            font-size: 32px;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        
        .modal-title {
            color: var(--secondary-color);
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 25px;
        }
        
         .modal-details {
            color: var(--text-color);
            font-size: 16px;
            line-height: 1.8;  white-space: pre-line;
        }
        
        .modal-details p {
            margin-bottom: 20px;
        }
		
   
        /* 校园风貌 */
  .campus {
            background-color: #f8f9fa;
            padding: 90px 0;
        }
        
        .campus-header {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .campus-header h2 {
            font-size: 42px;
            color: var(--primary-color);
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
            font-weight: 700;
        }
        
        .campus-header h2::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 5px;
            background-color: var(--secondary-color);
            border-radius: 3px;
        }
        
        .campus-header p {
            color: var(--text-light);
            max-width: 700px;
            margin: 20px auto 0;
            line-height: 1.7;
        }
        
        .campus-container {
            position: relative;
            width: 100%;
            overflow: hidden;
            padding: 0px 0 40px;
        }
        
        .campus-track {
            display: flex;
            gap: 20px;
            transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            padding: 10px 5px;
			
        }
        
        .campus-item {
            flex: 0 0 300px;
            height: 340px;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            background-color: white;
            transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            cursor: pointer;
            position: relative;
        }
        
        .campus-item:hover {
            transform: translateY(-15px) scale(1.02);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
        }
        
        .campus-img-container {
            width: 100%;
            height: 250px;
            overflow: hidden;
        }
        
        .campus-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        
        .campus-item:hover .campus-img {
            transform: scale(1.1);
        }
        
        .campus-title {
            height: 90px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 20px;
            background-color: white;
        }
        
        .campus-title h3 {
            font-size: 18px;
            color: var(--primary-color);
            text-align: center;
            font-weight: 600;
            margin: 0;
            line-height: 1.4;
        }
        
        /* 控制按钮样式 */
        .campus-controls {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 40px;
        }
        
        .campus-btn {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: white;
            border: 2px solid var(--secondary-color);
            color: var(--secondary-color);
            font-size: 22px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .campus-btn:hover {
            background-color: var(--secondary-color);
            color: white;
            transform: scale(1.1);
            box-shadow: 0 8px 20px rgba(128, 90, 213, 0.3);
        }
        
        .campus-btn:disabled {
            opacity: 0.4;
            cursor: not-allowed;
            border-color: #ccc;
            color: #ccc;
        }
        
        .campus-btn:disabled:hover {
            background-color: white;
            color: #ccc;
            transform: none;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        /* 导航点样式 */
        .campus-dots {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-top: 30px;
        }
        
        .campus-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: #ddd;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            padding: 0;
        }
        
        .campus-dot.active {
            background-color: var(--secondary-color);
            transform: scale(1.3);
        }
        
        /* 图片查看器 */
        .image-viewer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.95);
            z-index: 2000000;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }
        
        .viewer-content {
            position: relative;
            width: 90%;
            height: 90%;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .viewer-image {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            border-radius: 5px;
            opacity: 0;
            transition: opacity 0.5s ease;
        }
        
        .viewer-image.loaded {
            opacity: 1;
        }
        
        .viewer-close {
            position: absolute;
            top: 20px;
            right: 30px;
            font-size: 40px;
            color: white;
            cursor: pointer;
            z-index: 10;
            transition: all 0.3s ease;
            background: rgba(0, 0, 0, 0.5);
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .viewer-close:hover {
            background: rgba(0, 0, 0, 0.8);
            transform: rotate(90deg);
        }
        
        .viewer-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(255, 255, 255, 0.2);
            border: none;
            width: 70px;
            height: 70px;
            border-radius: 50%;
            color: white;
            font-size: 28px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(5px);
        }
        
        .viewer-nav:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-50%) scale(1.1);
        }
        
        .viewer-prev {
            left: 30px;
        }
        
        .viewer-next {
            right: 30px;
        }
        
        .viewer-counter {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            color: white;
            font-size: 18px;
            background: rgba(0, 0, 0, 0.5);
            padding: 8px 20px;
            border-radius: 20px;
            font-weight: 500;
        }
        
        /* 响应式调整 */
        @media screen and (max-width: 1200px) {
            .campus-item {
                flex: 0 0 280px;
                height: 320px;
            }
            
            .campus-img-container {
                height: 230px;
            }
            
            .campus-title {
                height: 90px;
            }
        }
        
        @media screen and (max-width: 992px) {
            .campus {
                padding: 70px 0;
            }
            
            .campus-header h2 {
                font-size: 36px;
            }
            
            .campus-item {
                flex: 0 0 260px;
                height: 300px;
            }
            
            .campus-img-container {
                height: 210px;
            }
            
            .viewer-nav {
                width: 60px;
                height: 60px;
                font-size: 24px;
            }
            
            .viewer-close {
                width: 50px;
                height: 50px;
                font-size: 30px;
            }
        }
        
        @media screen and (max-width: 768px) {
		
            .campus-item {
                flex: 0 0 240px;
                height: 280px;
            }
            
            .campus-img-container {
                height: 190px;
            }
            
            .campus-title h3 {
                font-size: 16px;
            }
            
            .campus-btn {
                width: 50px;
                height: 50px;
                font-size: 20px;
            }
            
            .viewer-nav {
                width: 50px;
                height: 50px;
                font-size: 20px;
            }
            
            .viewer-prev {
                left: 15px;
            }
            
            .viewer-next {
                right: 15px;
            }
			       .campus-controls {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 0px;
        }
			  .campus-dots {
            display: none
        }
        
        }
        

        /* 视频专区 */
        .videos {
            background-color: white;
        }
        
        .video-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 35px;
        }
        
        .video-card {
            background-color: white;
            border-radius: var(--border-radius);
            overflow: hidden;

            box-shadow: var(--box-shadow);
            transition: var(--transition);
            cursor: pointer;
        }
        
        .video-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        .video-thumbnail {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        
        .video-thumbnail img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .video-card:hover .video-thumbnail img {
            transform: scale(1.08);
        }
        
        .play-button {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            background-color: rgba(0,0,0, 0.3);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 24px;
            transition: var(--transition);
        }
        
        .video-card:hover .play-button {
            background-color: rgba(2,167,235, 0.9);
            transform: translate(-50%, -50%) scale(1.1);
        }
        
        .video-info {
            padding: 25px;
        }
        
        .video-info h3 {
            font-size: 20px;
            color: var(--primary-color);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        
        .video-info p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.6;
			 display: -webkit-box;
         -webkit-line-clamp: 2; 
          -webkit-box-orient: vertical;
           overflow: hidden;
           text-overflow: ellipsis;
        }
        
        /* 视频模态框 */
        .video-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.9);
            z-index: 2000000;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }
        
        .video-modal-content {
            max-width: 1000px;
            width: 100%;
            position: relative;
            animation: modalFadeIn 0.4s ease;
        }
        
        .video-player {
            width: 100%;
            height: 0;
            padding-bottom: 56.25%; /* 16:9 宽高比 */
            position: relative;
            background-color: #000;
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        
        .video-player iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }
        
        .video-modal-info {
            background-color: white;
            padding: 25px;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
        }
        
        .video-modal-info h3 {
            font-size: 26px;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        
        .video-modal-info p {
            color: var(--text-color);
            font-size: 16px;
            line-height: 1.7;
        }
        
        /* 页脚 */

        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 50px;
            margin-bottom: 50px;
        }
        
        .footer-column h3 {
            font-size: 22px;
            margin-bottom: 30px;
            color: white;
            position: relative;
            padding-bottom: 15px;
            font-weight: 600;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background-color: var(--accent-color);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 15px;
        }
        
        .footer-links a {
            color: #bbb;
            text-decoration: none;
            transition: var(--transition);
            font-size: 15px;
        }
        
        .footer-links a:hover {
            color: white;
            padding-left: 8px;
        }
        
        .contact-info {
            color: #bbb;
            line-height: 1.9;
            font-size: 15px;
        }
        
        .contact-info i {
            color: var(--accent-color);
            margin-right: 12px;
            width: 20px;
        }
            .contact-info em {
            color: var(--accent-color);
            margin-right: 12px;
            width: 20px;
        }
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 25px;
        }
        
        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background-color: #444;
            border-radius: 50%;
            color: white;
            transition: var(--transition);
            font-size: 18px;
        }
        
        .social-links a:hover {
            background-color: var(--secondary-color);
            transform: translateY(-5px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 15px;
        }
        
        /* 响应式设计 */
        @media screen and (max-width: 1200px) {
            .teacher-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .hero h2 {
                font-size: 48px;
            }
            
            .hero p {
                font-size: 20px;
            }
        }
        
        @media screen and (max-width: 992px) {
            .intro-content, .message-content {
                flex-direction: column;
            }
            
            .intro-image, .message-image {
                height: 400px;
            }
            
            .teacher-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .modal-body {
                flex-direction: column;
            }
            
            .modal-image {
                height: 400px;
            }
            
            .modal-image img {
                border-radius: var(--border-radius) var(--border-radius) 0 0;
            }
            
            .hero h2 {
                font-size: 40px;
            }
            
            .hero p {
                font-size: 18px;
            }
            
            nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
                z-index: 100;
            }
            
            nav ul.show {
                display: flex;
            }
            
            .mobile-menu-btn {
                display: block;
            }
        }
        


		
        @media screen and (max-width: 768px) {
		  .intro-content {
            gap: 20px;
            margin-bottom: 20px;
        }
		
            .teacher-grid {
                grid-template-columns: 1fr;
            }
            
            .culture-grid {
                grid-template-columns: 1fr;
				  gap: 20px;
            }
            
            .video-grid {
                grid-template-columns: 1fr;
            }
            
            .section {
                padding: 70px 0;
            }
       .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
            .section-header h2 {
                font-size: 36px;
            }
                  .intro-text h3 {
            font-size: 34px;
            margin-bottom: 20px;
  
        }
            .message-text {
                padding: 40px 25px 35px 25px
            }
            
                 .teacher-tabs {
  
            margin-bottom: 40px;
        }
            
            .slider-btn {
                width: 50px;
                height: 50px;
                font-size: 20px;
            }
			
			       .modal-info {
            flex: 1;
            min-width: 300px;
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: top;
        }
        }
        



  .milestone-wrapper {
            background: #fefefe;
            border-radius: 32px;
            box-shadow: 0 25px 45px -15px rgba(0, 0, 0, 0.15);
            padding: 2.5rem 2rem;
            margin-top: 1rem;
            border: 1px solid rgba(183, 140, 90, 0.15);
        }

        .year-tabs {
            display: flex;
            justify-content: center;
            gap: 1.0rem;
            margin-bottom: 2.8rem;
            flex-wrap: wrap;
        }
        .year-tab {
            background: transparent;
            border: none;
            font-size: 1.7rem;
            font-weight: 400;
            padding: 0.4rem 2.4rem;
            border-radius: 60px;
            color: #333;
            cursor: pointer;
            transition: all 0.25s ease;
            letter-spacing: 1px;
            border: 1.5px solid transparent;
            box-shadow: 0 4px 8px rgba(0,0,0,0.02);
			 border-color: #eee;
        }
        .year-tab.active {
            background: #02a7eb;
            color: white;
            border-color: #0098d6;
            box-shadow: 0 15px 25px -10px rgba(44,62,79,0.4);
            font-weight: 500;
        }
        .year-tab:hover:not(.active) {
            border-color: #0098d6;
            background: #02a7eb; color: white;  box-shadow: 0 15px 25px -10px rgba(44,62,79,0.4);
        }



        .timeline-grid {
            display: flex;
            flex-direction: column;
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
        }
.timeline-grid::before {
    content: '';
    position: absolute;
    left: 135px;
    top: 12px;
    bottom: 12px;
    width: 3px;
    background: #d1d1d1; 
    border-radius: 3px;
    display: block;
}

.timeline-item {
    position: relative;
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: 129px;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    background: #fff; 
    border: 2px solid #d1d1d1; 
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    z-index: 5;
    transition: all 0.2s ease;
}

.timeline-item:hover::after {
    transform: translateY(-50%) scale(1.15);
    background: #b8e2ff; 
    border-color: #4a8eb8;
}


@media (max-width: 800px) {
    .timeline-grid::before {
        display: none;
    }
    .timeline-item::after {
        display: none;
    }
}

        .timeline-item {
            display: flex;
            margin-bottom: 1.8rem;
            align-items: flex-start;
            position: relative;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .timeline-date {
            flex: 0 0 120px;
            background: #fff;
            padding: 0.8rem 0.2rem;
            border-radius: 50px;
            text-align: center;
            font-weight: 600;
            font-size: 1.1rem;
            color: #2c3e4f;
            border: 1px solid #ade6fd;
            box-shadow: 0 6px 14px rgba(183,140,90,0.08);
            transition: all 0.2s;
            align-self: center;
            z-index: 2;
            backdrop-filter: blur(2px);
        }
        .timeline-item:hover .timeline-date {
            background: #02a7eb;
            color: white;
            border-color: #02a7eb;
            box-shadow: 0 10px 18px -6px #b4dcec70;
        }

        .timeline-content {
            flex: 1;
            background: #ffffff;
            border-left: 5px solid #02a7eb;
            padding: 1.3rem 1.8rem;
            border-radius: 18px 8px 8px 18px;
            box-shadow: 0 8px 22px -8px rgba(0,0,0,0.12);
            transition: 0.15s;
            word-break: break-word;
            min-width: 240px;
            font-size: 1.08rem;
            line-height: 1.6;
            color: #1e2b36; margin-left:20px
        }
        .timeline-item:hover .timeline-content {
           box-shadow: 0 10px 18px -6px #b4dcec70;
            background: #fff;
        }

        .highlight-badge {
            display: inline-block;
            background: #e8d9c9;
            color: #7b5a3e;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            margin-left: 0.6rem;
            letter-spacing: 0.3px;
            vertical-align: middle;
        }

        .empty-year-message {
            text-align: center;
            padding: 4rem 2rem;
            background: #f7f3ed;
            border-radius: 60px;
            color: #7d8a94;
            font-size: 1.2rem;
        }

        @media (max-width: 768px) {
            .timeline-item {
                flex-direction: column;
                align-items: stretch;
            }
            .timeline-date {
			border-radius: 15px;
			flex: 0 0 0px;
            padding: 10px 20px;
                align-self: flex-start;
                width: auto;
                display: inline-block;
                margin-bottom: 0rem;
            }
	
		
            .timeline-grid::before {
                display: none;
            }
            .year-tab {
                font-size: 1.5rem;
                padding: 0.3rem 1.4rem;
            }
		 .timeline-content {
         margin-left:0px
        }
        }

        .view-more-link {
            text-align: right;
            margin-top: 2rem;
            font-size: 1rem;
        }
        .view-more-link a {
            color: #2c3e4f;
            text-decoration: none;
            border-bottom: 2px solid #b78c5a;
            padding-bottom: 3px;
            font-weight: 500;
        }
        .view-more-link i {
            transition: 0.2s;
        }
        .view-more-link a:hover i {
            transform: translateX(5px);
        }