* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        :root {
            --primary: #0d2b5c;
            --primary-dark: #0a1f44;
            --primary-light: #1a3e7e;
            --accent: #ff8c00;
            --accent-light: #ffaa40;
            --light-bg: #f0f4f9;
            --dark-text: #222;
            --light-text: #555;
            --border: #c5d1e6;
            --card-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
            --card-shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.15);
            --success: #34a853;
            --warning: #f9ab00;
            --danger: #ea4335;
            --transition: all 0.3s ease;
        }
        
        body {
            background: linear-gradient(135deg, #e8eff8 0%, #d6e3f5 100%);
            color: var(--dark-text);
            min-height: 100vh;
            position: relative;
            overflow-x: hidden;
        }
        
        /* 导航栏样式 */
        .navbar {
            background: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .nav-container {
            max-width: 1300px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .logo img {
            height: 40px;
        }
        
        .logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            background: linear-gradient(to right, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .nav-links {
            display: flex;
            gap: 20px;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--dark-text);
            font-weight: 500;
            padding: 8px 15px;
            border-radius: 20px;
            transition: var(--transition);
            position: relative;
        }
        
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(26, 62, 126, 0.05);
        }
        
        .nav-links a.active {
            color: white;
            background: var(--primary);
            box-shadow: 0 4px 8px rgba(13, 43, 92, 0.2);
        }
        
        .nav-links a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s;
        }
        
        .nav-links a:hover:after {
            width: 100%;
        }
        
        .container {
            max-width: 1300px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
            padding: 20px;
        }
        
        header {
            text-align: center;
            padding: 40px 0 30px;
            margin-bottom: 20px;
        }
        
        header h1 {
            font-size: 2.4rem;
            margin-bottom: 10px;
            color: var(--primary);
            position: relative;
            display: inline-block;
        }
        
        header h1:after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }
        
        header p {
            font-size: 1.1rem;
            color: var(--light-text);
            max-width: 700px;
            margin: 15px auto;
            line-height: 1.6;
        }
        
        .main-content {
            display: flex;
            gap: 25px;
            margin-bottom: 30px;
        }
        
        .input-section, .result-section {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 14px;
            box-shadow: var(--card-shadow);
            padding: 25px;
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        
        .input-section {
            flex: 1.2;
        }
        
        .result-section {
            flex: 1;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
            border-top: 3px solid var(--accent);
        }
        
        .section-title {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
            position: relative;
            padding-bottom: 12px;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        
        .input-row {
            display: flex;
            gap: 15px;
            margin-bottom: 15px;
        }
        
        .input-group {
            flex: 1;
            margin-bottom: 0;
        }
        
        .input-group label {
            display: block;
            margin-bottom: 6px;
            font-weight: 600;
            color: var(--primary);
        }
        
        .input-group input, .input-group select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            transition: var(--transition);
            background: var(--light-bg);
        }
        
        .input-group input:focus, .input-group select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(13, 43, 92, 0.2);
        }
        
        .radio-group {
            display: flex;
            gap: 15px;
            margin-top: 6px;
        }
        
        .radio-option {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .radio-option input {
            width: auto;
        }
        
        .ai-button {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            border-radius: 8px;
            padding: 14px 25px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            width: 100%;
            margin-top: 25px;
            transition: var(--transition);
            box-shadow: 0 6px 15px rgba(13, 43, 92, 0.4);
            position: relative;
            overflow: hidden;
        }
        
        .ai-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(13, 43, 92, 0.5);
        }
        
        .ai-button:active {
            transform: scale(0.98);
            box-shadow: 0 3px 10px rgba(13, 43, 92, 0.3);
        }
        
        .ai-button:after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: rgba(255,255,255,0.1);
            transform: rotate(30deg);
            transition: all 0.6s ease;
        }
        
        .ai-button:hover:after {
            transform: rotate(30deg) translate(20%, 20%);
        }
        
        .result-placeholder {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            text-align: center;
            color: var(--light-text);
            padding: 25px;
            transition: var(--transition);
        }
        
        .result-content {
            display: none;
            flex: 1;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.8s forwards;
        }
        
        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .result-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }
        
        .crane-info h3 {
            font-size: 1.4rem;
            margin-bottom: 5px;
            color: var(--primary);
        }
        
        .crane-info p {
            color: var(--light-text);
            font-size: 0.95rem;
        }
        
        .specs-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 20px;
        }
        
        .spec-card {
            background: var(--light-bg);
            border-radius: 10px;
            padding: 15px;
            border-left: 4px solid var(--primary);
            transition: var(--transition);
        }
        
        .spec-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }
        
        .spec-card .label {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .spec-card .value {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--dark-text);
            padding-left: 22px;
        }
        
        .recommendation {
            background: rgba(26, 62, 126, 0.05);
            border-left: 4px solid var(--primary);
            padding: 18px;
            border-radius: 0 8px 8px 0;
            margin-top: 18px;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        
        .recommendation:hover {
            transform: translateY(-2px);
            box-shadow: var(--card-shadow);
        }
        
        .recommendation h4 {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
        }
        
        .loading {
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 40px 0;
        }
        
        .spinner {
            width: 40px;
            height: 40px;
            border: 4px solid rgba(26, 62, 126, 0.2);
            border-top: 4px solid var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-bottom: 15px;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .height-success {
            background: rgba(52, 168, 83, 0.1);
            border-left: 4px solid var(--success);
            padding: 12px;
            border-radius: 0 8px 8px 0;
            margin-top: 15px;
            font-size: 0.9rem;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        
        .model-badge {
            display: inline-block;
            padding: 3px 8px;
            border-radius: 16px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-left: 8px;
        }
        
        .badge-flex {
            background: rgba(26, 115, 232, 0.1);
            color: #1a73e8;
        }
        
        .badge-rigid {
            background: rgba(234, 67, 53, 0.1);
            color: #ea4335;
        }
        
        .badge-aluminum {
            background: rgba(52, 168, 83, 0.1);
            color: #34a853;
        }
        
        .disclaimer {
            background: rgba(0, 0, 0, 0.03);
            border-top: 1px dashed #ccc;
            padding: 12px;
            margin-top: 15px;
            font-size: 0.85rem;
            color: var(--light-text);
            border-radius: 6px;
            display: flex;
            gap: 8px;
        }
        
        .solution-box {
            background: rgba(26, 62, 126, 0.05);
            border-radius: 8px;
            padding: 12px;
            margin-top: 12px;
            border-left: 3px solid var(--primary);
        }
        
        .solution-box h5 {
            color: var(--primary);
            margin-bottom: 8px;
            font-size: 1rem;
        }
        
        .section {
            margin: 50px 0;
            padding: 25px 0;
        }
        
        .section h2 {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 25px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            display: inline-block;
        }
        
        .faq-container {
            background: white;
            border-radius: 14px;
            box-shadow: var(--card-shadow);
            padding: 25px;
            margin-top: 15px;
        }
        
        .faq-item {
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 15px;
            transition: var(--transition);
        }
        
        .faq-item:hover {
            transform: translateX(5px);
        }
        
        .faq-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        
        .faq-item h3 {
            color: var(--primary);
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
        
        .faq-item p {
            font-size: 0.95rem;
            line-height: 1.6;
            padding-left: 28px;
        }
        
        .about-content {
            display: flex;
            gap: 25px;
            align-items: center;
            margin-top: 25px;
        }
        
        .about-text {
            flex: 1;
            font-size: 0.95rem;
            line-height: 1.7;
        }
        
        .about-image {
            flex: 1;
            background: #7d9bc1;
            border-radius: 14px;
            height: 280px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            text-align: center;
            box-shadow: var(--card-shadow);
            overflow: hidden;
            transition: var(--transition);
        }
        
        .about-image:hover {
            transform: scale(1.02);
            box-shadow: var(--card-shadow-hover);
        }
        
        .about-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .company-info {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
            margin-top: 25px;
        }
        
        .info-card {
            background: white;
            border-radius: 14px;
            padding: 20px;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }
        
        .info-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-shadow-hover);
        }
        
        .info-card h3 {
            color: var(--primary);
            margin-bottom: 15px;
            font-size: 1.2rem;
        }
        
        .info-card ul {
            padding-left: 25px;
        }
        
        .info-card li {
            margin-bottom: 8px;
            font-size: 0.95rem;
            position: relative;
        }
        
        .info-card li:before {
            content: '?';
            color: var(--accent);
            font-weight: bold;
            position: absolute;
            left: -15px;
        }
        
        .help-text {
            font-size: 0.75rem;
            color: var(--light-text);
            margin-top: 4px;
            padding-left: 5px;
        }
        
        .contact-content {
            display: flex;
            gap: 25px;
            margin-top: 25px;
        }
        
        .contact-info-card {
            flex: 1;
            background: white;
            border-radius: 14px;
            padding: 20px;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }
        
        .contact-info-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-shadow-hover);
        }
        
        .contact-info-card h3 {
            color: var(--primary);
            margin-bottom: 15px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            font-size: 1.2rem;
        }
        
        .contact-detail {
            margin-bottom: 15px;
        }
        
        .branch-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px;
            margin-top: 8px;
        }
        
        .branch-item {
            background: var(--light-bg);
            padding: 6px 10px;
            border-radius: 6px;
            font-size: 0.85rem;
            text-align: center;
            transition: var(--transition);
        }
        
        .branch-item:hover {
            background: rgba(13, 43, 92, 0.1);
            transform: scale(1.05);
        }
        
        .contact-item {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid #f0f0f0;
        }
        
        .contact-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
        }
        
        .contact-type {
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
            font-size: 0.95rem;
        }
        
        .contact-value {
            font-size: 1.05rem;
            margin-top: 4px;
        }
        
        .contact-value a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        
        .contact-value a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        
        footer {
            text-align: center;
            padding: 25px 0;
            color: var(--light-text);
            font-size: 0.85rem;
            border-top: 1px solid var(--border);
            margin-top: 15px;
        }
        
        /* 移动端优化样式 */
        @media (max-width: 900px) {
            .main-content {
                flex-direction: column;
            }
            
            header h1 {
                font-size: 1.8rem;
            }
            
            .input-row {
                flex-direction: column;
                gap: 12px;
            }
            
            .nav-links {
                gap: 8px;
                font-size: 0.85rem;
            }
            
            .contact-content {
                flex-direction: column;
            }
            
            .company-info {
                grid-template-columns: 1fr;
            }
            
            .about-content {
                flex-direction: column;
            }
            
            .about-image {
                height: 200px;
                width: 100%;
            }
            
            .specs-grid {
                grid-template-columns: 1fr;
            }
            
            /* 移动端按钮优化 */
            .ai-button {
                padding: 16px 25px;
                font-size: 1.1rem;
            }
            
            /* 移动端表单元素优化 */
            .input-group input, .input-group select {
                padding: 14px 15px;
                font-size: 1rem;
            }
            
            /* 结果区域在移动端添加更多间距 */
            .result-section {
                margin-top: 20px;
            }
        }
        
        .height-warning {
            background: rgba(249, 171, 0, 0.1);
            border-left: 4px solid var(--warning);
            padding: 12px;
            border-radius: 0 8px 8px 0;
            margin-top: 15px;
            font-size: 0.9rem;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        
        .height-warning > div {
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        
        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        
        .feature-card {
            background: white;
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
            border-top: 4px solid var(--primary);
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-shadow-hover);
        }
        
        .feature-card h3 {
            margin-bottom: 8px;
            color: var(--primary);
            font-size: 1.2rem;
        }
        
        .feature-card p {
            color: var(--light-text);
            line-height: 1.6;
            font-size: 0.95rem;
        }
        
        .lazy-img {
            opacity: 0;
            transition: opacity 0.5s ease;
        }
        
        .lazy-img.loaded {
            opacity: 1;
        }
        
        .scroll-target {
            position: relative;
            top: -100px;
        }
        
        /* 表单验证提示样式 */
        .validation-error {
            color: var(--danger);
            font-size: 0.8rem;
            margin-top: 4px;
            display: none;
        }
        
        .input-group.error input, 
        .input-group.error select {
            border-color: var(--danger);
        }
        
        .toast {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%) translateY(100px);
            background: rgba(234, 67, 53, 0.9);
            color: white;
            padding: 12px 20px;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            z-index: 1000;
            transition: transform 0.3s ease;
        }
        
        .toast.show {
            transform: translateX(-50%) translateY(0);
        }

        /* 新增样式：图标移除后的替代方案 */
        .section-title::before {
            content: "●";
            color: var(--accent);
            margin-right: 8px;
            font-weight: bold;
        }
        
        .spec-card .label::before {
            content: "■";
            color: var(--primary);
            margin-right: 6px;
            font-size: 10px;
            vertical-align: middle;
        }
        
        .recommendation h4::before {
            content: "★";
            margin-right: 8px;
            color: var(--primary);
        }
        
        .height-success::before {
            content: "?";
            font-weight: bold;
            margin-right: 8px;
            color: var(--success);
        }
        
        .height-warning div::before {
            content: "?";
            font-weight: bold;
            margin-right: 8px;
            color: var(--warning);
        }
        
        .solution-box h5::before {
            content: "?";
            margin-right: 6px;
        }
        
        .faq-item h3::before {
            content: "?";
            display: inline-block;
            width: 24px;
            height: 24px;
            line-height: 24px;
            text-align: center;
            background: var(--accent);
            color: white;
            border-radius: 50%;
            margin-right: 10px;
            font-weight: bold;
        }
        
        .info-card h3::before {
            content: "◆";
            color: var(--accent);
            margin-right: 8px;
        }
        
        .contact-info-card h3::before {
            content: "?";
            margin-right: 8px;
        }

        /* 新增AI相关样式 */
        .ai-brain {
            font-size: 40px;
            margin-bottom: 15px;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.1); }
            100% { transform: scale(1); }
        }
        
        .ai-tag {
            background: var(--accent);
            color: white;
            padding: 2px 8px;
            border-radius: 12px;
            font-size: 0.75rem;
            margin-left: 8px;
            vertical-align: middle;
        }
        
        .tech-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 20px;
        }
        
        .tech-item {
            background: rgba(13, 43, 92, 0.05);
            padding: 10px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        
        .ai-process {
            display: flex;
            justify-content: space-between;
            margin: 30px 0;
            position: relative;
        }
        
        .ai-process:before {
            content: '';
            position: absolute;
            top: 25px;
            left: 10%;
            width: 80%;
            height: 2px;
            background: var(--primary-light);
            z-index: 1;
        }
        
        .process-step {
            text-align: center;
            position: relative;
            z-index: 2;
            width: 20%;
        }
        
        .step-icon {
            width: 50px;
            height: 50px;
            background: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 10px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            font-weight: bold;
            font-size: 1.2rem;
            color: var(--primary);
        }
        
        .step-title {
            font-weight: 600;
            margin-bottom: 5px;
            color: var(--primary);
        }
        
        .step-desc {
            font-size: 0.85rem;
            color: var(--light-text);
        }
        
        .ai-model {
            background: white;
            border-radius: 14px;
            box-shadow: var(--card-shadow);
            padding: 25px;
            margin-top: 15px;
        }
        
        .model-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            margin-bottom: 15px;
        }
        
        .model-title h3 {
            font-size: 1.3rem;
        }
        
        .model-details {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        
        .model-detail {
            padding: 10px;
            border-left: 3px solid var(--accent);
            background: rgba(255, 140, 0, 0.05);
        }
        
        .model-detail h4 {
            margin-bottom: 5px;
            color: var(--primary);
        }
        
        .model-detail p {
            font-size: 0.9rem;
            color: var(--light-text);
        }
        
        /* 新增安装建议样式 */
        .advice-section {
            background: rgba(255, 255, 255, 0.9);
            border-radius: 12px;
            padding: 20px;
            margin-top: 20px;
            border-left: 4px solid var(--primary-light);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
        }
        
        .advice-section h4 {
            color: var(--primary);
            margin-bottom: 15px;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .advice-section h4::before {
            content: "?";
            font-size: 1.5rem;
        }
        
        .advice-content {
            padding-left: 20px;
        }
        
        .advice-item {
            margin-bottom: 12px;
            position: relative;
            padding-left: 25px;
        }
        
        .advice-item::before {
            content: "→";
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: bold;
        }
        
        .advice-highlight {
            background: rgba(255, 140, 0, 0.1);
            padding: 8px 12px;
            border-radius: 6px;
            margin: 8px 0;
            border-left: 3px solid var(--accent);
            font-weight: 600;
        }
        
        /* 运行方式建议样式 */
        .operation-advice {
            background: rgba(26, 115, 232, 0.1);
            border-radius: 8px;
            padding: 15px;
            margin: 15px 0;
            border-left: 4px solid #1a73e8;
        }
        
        .operation-advice h5 {
            color: #1a73e8;
            margin-bottom: 8px;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .operation-advice h5::before {
            content: "??";
        }
        
        .operation-detail {
            padding-left: 28px;
        }
        
        .inverter-note {
            background: rgba(52, 168, 83, 0.1);
            padding: 10px;
            border-radius: 6px;
            margin-top: 8px;
            border-left: 3px solid var(--success);
        }
        
        /* 结果按钮样式 */
        .result-buttons {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }
        
        .share-btn, .solution-btn {
            flex: 1;
            padding: 14px 20px;
            border-radius: 8px;
            font-weight: 600;
            text-align: center;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        
        .share-btn {
            background: var(--primary-light);
            color: white;
            border: 1px solid var(--primary);
        }
        
        .share-btn:hover {
            background: var(--primary);
            transform: translateY(-2px);
        }
        
        .solution-btn {
            background: var(--accent);
            color: white;
            border: 1px solid var(--accent);
        }
        
        .solution-btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
        }