/* 解决方案页面专用样式 */

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    margin-bottom: 15px;
    font-weight: bold;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 20px;
}

.breadcrumb {
    font-size: 14px;
    opacity: 0.8;
}

.breadcrumb a {
    color: white;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* 解决方案导航 */
.solutions-nav {
    background: white;
    padding: 30px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 80px;
    z-index: 100;
}

.solution-categories {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.category-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #7f8c8d;
    padding: 20px;
    border-radius: 15px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    min-width: 120px;
}

.category-link:hover,
.category-link.active {
    color: #27ae60;
    background: rgba(39, 174, 96, 0.1);
    border-color: #27ae60;
    transform: translateY(-5px);
}

.category-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

.category-link span {
    font-weight: 500;
    font-size: 14px;
}

/* 解决方案区域 */
.solution-section {
    padding: 80px 0;
}

.solution-section:nth-child(even) {
    background: #f8f9fa;
}

.solution-header {
    text-align: center;
    margin-bottom: 60px;
}

.solution-header h2 {
    font-size: 36px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.solution-header p {
    font-size: 18px;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
}

/* 痛点分析 */
.pain-points {
    margin-bottom: 60px;
}

.pain-points h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

.pain-points-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.pain-point-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.pain-point-item:hover {
    transform: translateY(-5px);
}

.pain-icon {
    font-size: 48px;
    text-align: center;
    margin-bottom: 20px;
}

.pain-point-item h4 {
    font-size: 20px;
    color: #e74c3c;
    margin-bottom: 15px;
    text-align: center;
}

.pain-point-item p {
    color: #7f8c8d;
    margin-bottom: 20px;
    line-height: 1.6;
}

.pain-point-item ul {
    list-style: none;
    padding: 0;
}

.pain-point-item li {
    color: #34495e;
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
    font-size: 14px;
}

.pain-point-item li::before {
    content: '•';
    color: #e74c3c;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 设计流程 */
.design-process {
    margin-bottom: 60px;
}

.design-process h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

.process-flow {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.process-step {
    background: white;
    padding: 30px 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    flex: 1;
    min-width: 200px;
    max-width: 250px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: #27ae60;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step-content h4 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 18px;
}

.step-content p {
    color: #7f8c8d;
    font-size: 14px;
    line-height: 1.5;
}

.process-arrow {
    font-size: 24px;
    color: #27ae60;
    font-weight: bold;
}

/* 安装示意图 */
.installation-diagram {
    margin-bottom: 60px;
}

.installation-diagram h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

.diagram-container {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.factory-layout {
    position: relative;
    background: #ecf0f1;
    border-radius: 10px;
    padding: 30px;
    margin-bottom: 30px;
    min-height: 400px;
}

.production-area {
    background: #bdc3c7;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
}

.production-area h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    text-align: center;
}

.equipment {
    background: #34495e;
    color: white;
    padding: 10px;
    border-radius: 5px;
    margin: 10px;
    text-align: center;
    display: inline-block;
    min-width: 80px;
}

.ventilation-system {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    align-items: center;
}

.ahu-unit, .purification-unit {
    background: #3498db;
    color: white;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: bold;
}

.supply-duct, .exhaust-duct {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.duct-line {
    height: 8px;
    border-radius: 4px;
}

.duct-line.supply {
    background: #2ecc71;
}

.duct-line.exhaust {
    background: #e74c3c;
}

.air-outlet, .air-inlet {
    background: #95a5a6;
    color: white;
    padding: 8px;
    border-radius: 5px;
    text-align: center;
    font-size: 12px;
}

.diagram-legend {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.diagram-legend h4 {
    width: 100%;
    text-align: center;
    color: #2c3e50;
    margin-bottom: 20px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 3px;
}

.supply-color { background: #2ecc71; }
.exhaust-color { background: #e74c3c; }
.equipment-color { background: #34495e; }

/* 成功案例 */
.success-cases h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

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

.case-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
}

.case-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.case-info {
    padding: 25px;
}

.case-info h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 18px;
}

.case-info p {
    color: #7f8c8d;
    margin-bottom: 8px;
    font-size: 14px;
}

.case-link {
    color: #27ae60;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    margin-top: 10px;
    transition: color 0.3s ease;
}

.case-link:hover {
    color: #2ecc71;
}

/* 解决方案特性 */
.solution-features {
    margin-bottom: 60px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-item h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 18px;
}

.feature-item p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 医疗区域 */
.medical-zones h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

.zones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.zone-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.zone-item h4 {
    color: #3498db;
    margin-bottom: 20px;
    font-size: 20px;
    text-align: center;
}

.zone-item ul {
    list-style: none;
    padding: 0;
}

.zone-item li {
    color: #34495e;
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    border-bottom: 1px solid #ecf0f1;
}

.zone-item li:last-child {
    border-bottom: none;
}

.zone-item li::before {
    content: '✓';
    color: #27ae60;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 学校优势 */
.school-benefits h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.benefit-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-5px);
}

.benefit-number {
    font-size: 36px;
    font-weight: bold;
    color: #3498db;
    margin-bottom: 15px;
}

.benefit-text h4 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 16px;
}

.benefit-text p {
    color: #7f8c8d;
    font-size: 14px;
}

/* 学校应用 */
.school-applications h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

.applications-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.application-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    border-left: 4px solid #3498db;
}

.application-item h4 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 18px;
}

.application-item p {
    color: #7f8c8d;
    line-height: 1.6;
    font-size: 14px;
}

/* 商业挑战 */
.commercial-challenges h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.challenge-item {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
}

.challenge-item h4 {
    color: #e74c3c;
    margin-bottom: 15px;
    font-size: 18px;
}

.challenge-item p {
    color: #7f8c8d;
    line-height: 1.6;
    font-size: 14px;
}

/* 商业解决方案 */
.commercial-solutions h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.solution-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.solution-item:hover {
    transform: translateY(-5px);
}

.solution-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.solution-item h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 18px;
}

.solution-item p {
    color: #7f8c8d;
    line-height: 1.6;
    font-size: 14px;
}

/* 实验室要求 */
.laboratory-requirements h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.requirement-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.requirement-item h4 {
    color: #9b59b6;
    margin-bottom: 20px;
    font-size: 20px;
    text-align: center;
}

.requirement-details p {
    color: #34495e;
    font-weight: bold;
    margin-bottom: 15px;
}

.requirement-details ul {
    list-style: none;
    padding: 0;
}

.requirement-details li {
    color: #7f8c8d;
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
    font-size: 14px;
}

.requirement-details li::before {
    content: '▸';
    color: #9b59b6;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 实验室系统 */
.laboratory-systems h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
}

.systems-flow {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.system-component {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    flex: 1;
    min-width: 180px;
    max-width: 220px;
}

.system-component h4 {
    color: #9b59b6;
    margin-bottom: 10px;
    font-size: 16px;
}

.system-component p {
    color: #7f8c8d;
    font-size: 14px;
}

.flow-arrow {
    font-size: 24px;
    color: #9b59b6;
    font-weight: bold;
}

/* 方案对比表格 */
.solutions-comparison {
    padding: 80px 0;
    background: white;
}

.solutions-comparison h2 {
    text-align: center;
    font-size: 36px;
    color: #2c3e50;
    margin-bottom: 50px;
}

.comparison-table {
    overflow-x: auto;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-radius: 10px;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.comparison-table th,
.comparison-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid #ecf0f1;
}

.comparison-table th {
    background: #27ae60;
    color: white;
    font-weight: bold;
    font-size: 14px;
}

.comparison-table td {
    color: #2c3e50;
    font-size: 14px;
}

.comparison-table tr:hover {
    background: #f8f9fa;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

/* 咨询CTA */
.consultation-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: bold;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
}

.feature-icon {
    color: #2ecc71;
    font-weight: bold;
    font-size: 18px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-large {
    padding: 15px 30px;
    font-size: 16px;
    font-weight: bold;
}

/* 咨询表单弹窗 */
.consultation-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 1000;
    overflow-y: auto;
}

.consultation-modal .modal-content {
    background: white;
    margin: 50px auto;
    padding: 0;
    border-radius: 15px;
    max-width: 600px;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

.consultation-modal .modal-header {
    padding: 20px 30px;
    border-bottom: 1px solid #ecf0f1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.consultation-modal .modal-header h3 {
    color: #2c3e50;
    font-size: 24px;
}

.consultation-modal .modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: #7f8c8d;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.consultation-modal .modal-close:hover {
    background: #ecf0f1;
    color: #2c3e50;
}

.consultation-modal .modal-body {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #bdc3c7;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 30px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .solution-categories {
        gap: 20px;
    }
    
    .process-flow {
        flex-direction: column;
    }
    
    .process-arrow {
        transform: rotate(90deg);
    }
    
    .systems-flow {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 40px 0;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
    
    .solution-header h2 {
        font-size: 28px;
    }
    
    .solution-section {
        padding: 60px 0;
    }
    
    .solution-categories {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .category-link {
        flex-direction: row;
        min-width: 200px;
        padding: 15px 20px;
    }
    
    .category-icon {
        font-size: 24px;
        margin-bottom: 0;
        margin-right: 10px;
    }
    
    .pain-points-grid,
    .feature-grid,
    .zones-grid,
    .benefits-grid,
    .challenges-grid,
    .solutions-grid,
    .requirements-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-features {
        flex-direction: column;
        gap: 20px;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .comparison-table {
        font-size: 12px;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 10px 12px;
    }
}

@media (max-width: 480px) {
    .solutions-nav {
        padding: 20px 0;
    }
    
    .category-link {
        min-width: 180px;
        padding: 12px 15px;
    }
    
    .category-link span {
        font-size: 13px;
    }
    
    .pain-point-item,
    .feature-item,
    .zone-item,
    .benefit-item,
    .challenge-item,
    .solution-item,
    .requirement-item,
    .system-component {
        padding: 20px;
    }
    
    .consultation-modal .modal-content {
        margin: 20px;
        max-width: none;
    }
    
    .consultation-modal .modal-body {
        padding: 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .solutions-nav,
    .consultation-cta,
    .footer {
        display: none;
    }
    
    .solution-section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .page-header {
        background: none;
        color: black;
    }
}