:root {
            --primary-dark: #1a1a40;
            --primary: #270082;
            --primary-light: #7a0bc0;
            --accent: #1de5e2;
            --accent-secondary: #f5008b;
            --text-light: #ffffff;
            --text-gray: #e0e0e0;
            --card-bg: rgba(39, 0, 130, 0.6);
            --card-hover: rgba(122, 11, 192, 0.7);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--primary-light));
            color: var(--text-light);
            line-height: 1.6;
            overflow-x: hidden;
            background-attachment: fixed;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏样式 */
        header {
            background: rgba(26, 26, 64, 0.9);
            backdrop-filter: blur(10px);
            position: fixed;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
        }
        
        nav {
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 15px 0;
            position: relative;
        }
        
        .logo {
            position: absolute;
            left: 20px;
            font-size: 28px;
            font-weight: 700;
            color: var(--text-light);
            display: flex;
            align-items: center;
            white-space: nowrap;
        }
        
        .logo i {
            color: var(--accent);
            margin-right: 10px;
            font-size: 28px;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
            margin: 0 auto;
        }
        
        .nav-links li {
            margin-left: 25px;
            position: relative;
        }
        
        .nav-links a {
            color: var(--text-gray);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
            font-size: 16px;
            padding: 8px 0;
            position: relative;
        }
        
        .nav-links a:not(.nav-btn):after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 0;
            background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
            transition: width 0.3s ease;
        }
        
        .nav-links a:not(.nav-btn):hover:after {
            width: 100%;
        }
        
        .nav-links a:not(.nav-btn):hover {
            color: var(--accent);
        }
        
        .nav-buttons {
            position: absolute;
            right: 20px;
            display: flex;
            gap: 10px;
        }
        
        .nav-btn {
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            padding: 10px 20px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
            text-decoration: none;
            display: inline-block;
            font-size: 14px;
            white-space: nowrap;
        }
        
        .nav-btn:hover {
            background: #6df3f1;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(29, 229, 226, 0.4);
        }
        
        .nav-btn-secondary {
            background: var(--accent-secondary);
            color: white;
        }
        
        .nav-btn-secondary:hover {
            background: #ff4da6;
            box-shadow: 0 5px 15px rgba(245, 0, 139, 0.4);
        }
        
        /* 页面标题区域 */
        .page-header {
            padding: 150px 0 50px;
            text-align: center;
            position: relative;
        }
        
        .page-header h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
        }
        
        .page-header p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto;
            color: var(--text-gray);
        }
        
        /* 留言表单和联系信息区域 */
        .form-contact-container {
            display: flex;
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .form-container {
            background: var(--card-bg);
            border-radius: 15px;
            padding: 30px;
            backdrop-filter: blur(5px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            flex: 2; /* 留言区域占比更大 */
        }
        
        .contact-info {
            background: var(--card-bg);
            border-radius: 15px;
            padding: 25px;
            backdrop-filter: blur(5px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            flex: 1; /* 联系信息区域占比更小 */
            align-self: flex-start;
        }
        
        .form-group {
            margin-bottom: 25px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 10px;
            font-weight: 500;
        }
        
        .form-group input, 
        .form-group textarea {
            width: 100%;
            padding: 12px 15px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-light);
            font-size: 16px;
            transition: all 0.3s;
        }
        
        .form-group input:focus, 
        .form-group textarea:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(29, 229, 226, 0.2);
        }
        
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        
        .captcha-group {
            display: flex;
            gap: 15px;
            align-items: center;
        }
        
        .captcha-group input {
            flex: 1;
        }
        
        .captcha-img {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 10px 15px;
            font-weight: bold;
            letter-spacing: 3px;
            user-select: none;
            min-width: 100px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .required::after {
            content: '*';
            color: var(--accent-secondary);
            margin-left: 4px;
        }
        
        .btn {
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
            text-decoration: none;
            display: inline-block;
        }
        
        .btn:hover {
            background: #6df3f1;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(29, 229, 226, 0.4);
        }
        
        .btn-secondary {
            background: var(--accent-secondary);
            color: white;
        }
        
        .btn-secondary:hover {
            background: #ff4da6;
            box-shadow: 0 5px 15px rgba(245, 0, 139, 0.4);
        }
        
        /* 留言列表区域 */
        .messages-section {
            padding: 50px 0;
        }
        
        .message-card {
            background: var(--card-bg);
            border-radius: 15px;
            padding: 25px;
            margin-bottom: 25px;
            backdrop-filter: blur(5px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            position: relative;
            overflow: hidden;
        }
        
        .message-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--primary-light), var(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s;
        }
        
        .message-card:hover::before {
            transform: scaleX(1);
        }
        
        .message-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .message-author {
            font-weight: 600;
            color: var(--accent);
        }
        
        .message-time {
            color: var(--text-gray);
            font-size: 0.9rem;
        }
        
        .message-content {
            margin-bottom: 20px;
            line-height: 1.6;
        }
        
        .reply-section {
            background: rgba(26, 26, 64, 0.4);
            border-radius: 10px;
            padding: 20px;
            margin-top: 15px;
            border-left: 3px solid var(--accent);
        }
        
        .reply-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
        }
        
        .reply-author {
            font-weight: 600;
            color: var(--accent-secondary);
        }
        
        .reply-time {
            color: var(--text-gray);
            font-size: 0.9rem;
        }
        
        .reply-badge {
            background: var(--accent-secondary);
            color: white;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        
        /* 分页样式 */
        .pagination {
            display: flex;
            justify-content: center;
            margin-top: 40px;
            gap: 10px;
        }
        
        .page-link {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--card-bg);
            color: var(--text-light);
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .page-link:hover {
            background: var(--card-hover);
            transform: translateY(-2px);
        }
        
        .page-link.active {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
        }
        
        /* 联系信息内部样式 */
        .contact-info h3 {
            color: var(--accent);
            margin-bottom: 20px;
            text-align: center;
        }
        
        .contact-details {
            display: grid;
            gap: 15px;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .contact-icon {
            width: 40px;
            height: 40px;
            background: rgba(29, 229, 226, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            color: var(--accent);
            font-size: 18px;
        }
        
        .contact-text {
            flex: 1;
        }
        
        .contact-text strong {
            display: block;
            margin-bottom: 5px;
        }
        
        /* 页脚样式 */
        footer {
            background: rgba(13, 13, 33, 0.95);
            padding: 60px 0 30px;
            margin-top: 80px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 3px;
            background: var(--accent);
        }
        
        .footer-column p, .footer-column a {
            color: var(--text-gray);
            margin-bottom: 15px;
            display: block;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-column a:hover {
            color: var(--accent);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-gray);
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .logo {
                font-size: 24px;
            }
            
            .logo i {
                font-size: 24px;
            }
            
            .nav-links li {
                margin-left: 15px;
            }
            
            .nav-btn {
                padding: 8px 16px;
                font-size: 13px;
            }
            
            .form-contact-container {
                flex-direction: column;
            }
            
            .contact-info {
                order: -1; /* 在小屏幕上将联系信息放在上面 */
                margin-bottom: 30px;
            }
        }
        
        @media (max-width: 768px) {
            nav {
                flex-direction: column;
                padding: 10px 0;
            }
            
            .logo {
                position: static;
                margin-bottom: 15px;
                font-size: 22px;
            }
            
            .logo i {
                font-size: 22px;
            }
            
            .nav-links {
                margin: 15px 0;
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .nav-links li {
                margin: 0 10px 10px;
            }
            
            .nav-buttons {
                position: static;
                margin-top: 15px;
            }
            
            .page-header h1 {
                font-size: 2.2rem;
            }
            
            .page-header p {
                font-size: 1rem;
            }
            
            .form-container, .contact-info {
                padding: 20px;
            }
            
            .captcha-group {
                flex-direction: column;
                align-items: stretch;
            }
            
            .contact-details {
                grid-template-columns: 1fr;
            }
        }