/* 页面头部样式 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 120px 0 60px;
    text-align: center;
}

.page-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 300;
}

/* 页面内容样式 */
.page-content {
    padding: 80px 0;
    background: var(--white);
}

.page-content h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
}

.page-content h3 {
    color: var(--dark-gray);
    font-size: 1.8rem;
    font-weight: 600;
    margin: 2rem 0 1rem;
}

.page-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
}

.page-content ul {
    margin: 1rem 0 2rem 2rem;
}

.page-content li {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
    color: var(--dark-gray);
}

/* 项目详情样式 */
.project-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
    align-items: start;
}

.project-info h2 {
    text-align: left;
    margin-bottom: 1.5rem;
}

.project-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.project-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: var(--transition);
}

.project-image:hover img {
    transform: scale(1.05);
}

/* 时间轴样式 */
.project-timeline {
    margin-bottom: 4rem;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--secondary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 0;
    width: 12px;
    height: 12px;
    background: var(--secondary-color);
    border-radius: 50%;
    border: 3px solid var(--white);
    box-shadow: var(--shadow);
}

.timeline-date {
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

/* 成就展示样式 */
.project-achievements,
.project-highlights,
.project-features {
    margin-bottom: 4rem;
}

.achievements-grid,
.highlights-grid,
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.achievement-item,
.highlight-item,
.feature-item {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
}

.achievement-item:hover,
.highlight-item:hover,
.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.achievement-icon,
.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.achievement-icon i,
.feature-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.achievement-content h3,
.highlight-item h3,
.feature-item h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

/* 服务详情通用布局 */
.service-section {
    margin-bottom: 4rem;
}

.service-section h2 {
    text-align: left;
}

.service-section .section-subtitle {
    text-align: left;
    color: var(--dark-gray);
    font-size: 1.05rem;
    margin-top: -1rem;
}

.service-intro {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    align-items: center;
}

.intro-text h2 {
    margin-bottom: 1.5rem;
}

.intro-text p {
    margin-bottom: 1.2rem;
    color: var(--dark-gray);
}

.service-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-card {
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--dark-gray);
    font-size: 0.95rem;
}

.intro-gallery {
    display: grid;
    gap: 1.5rem;
}

.gallery-main {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    min-height: 320px;
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.intro-badge {
    position: absolute;
    left: 20px;
    bottom: 20px;
    background: rgba(18, 66, 130, 0.85);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow);
}

.intro-badge i {
    font-size: 1.1rem;
}

.gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.gallery-thumbs img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.gallery-thumbs img:hover {
    transform: translateY(-4px);
}

.key-points {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
}

.key-points li {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    color: var(--dark-gray);
    margin-bottom: 0.75rem;
}

.key-points i {
    color: var(--secondary-color);
    font-size: 1rem;
    margin-top: 0.2rem;
}

.highlight-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.4rem;
    margin: 0 auto 1rem;
}

.service-process .process-steps {
    margin-top: 2.5rem;
}

.deliverables-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.deliverable-card {
    padding: 1.5rem;
    border-radius: 12px;
    background: var(--light-gray);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.deliverable-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.deliverable-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.deliverable-card p {
    margin: 0;
    color: var(--dark-gray);
    font-size: 0.95rem;
}


/* 产品分类样式 */
.product-categories {
    margin-bottom: 4rem;
}

.categories-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.category-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    background: var(--light-gray);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.category-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.category-image {
    height: 250px;
    overflow: hidden;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.category-item:hover .category-image img {
    transform: scale(1.1);
}

.category-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.category-content h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.category-content ul {
    margin-left: 1rem;
}

/* 工艺流程样式 */
.construction-process,
.project-process {
    margin-bottom: 4rem;
}

.process-timeline,
.process-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.timeline-item,
.step-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.timeline-marker,
.step-number {
    width: 60px;
    height: 60px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.2rem;
}

.timeline-content,
.step-content {
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: 8px;
}

.timeline-content h3,
.step-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* 优势特点样式 */
.project-advantages,
.product-features,
.safety-standards {
    margin-bottom: 4rem;
}

.advantages-grid,
.features-list,
.standards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.advantage-item,
.standard-item {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.advantage-item:hover,
.standard-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.advantage-icon,
.standard-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.advantage-icon i,
.standard-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.advantage-item h3,
.standard-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* 承诺样式 */
.safety-commitment,
.service-commitment {
    background: var(--light-gray);
    padding: 3rem;
    border-radius: 12px;
    margin-top: 4rem;
}

.commitment-content {
    text-align: center;
}

.commitment-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-top: 2rem;
}

.commitment-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--white);
    border-radius: 8px;
    transition: var(--transition);
}

.commitment-item:hover {
    transform: translateX(10px);
}

.commitment-item i {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }
    
    .project-details {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .category-item {
        grid-template-columns: 1fr;
    }

    .service-intro {
        grid-template-columns: 1fr;
    }

    .service-section h2,
    .service-section .section-subtitle {
        text-align: center;
    }

    .service-stats {
        grid-template-columns: repeat(2, minmax(120px, 1fr));
    }

    .gallery-main {
        min-height: 240px;
    }

    .gallery-thumbs {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-thumbs img {
        height: 130px;
    }

    .intro-badge {
        left: 15px;
        bottom: 15px;
        font-size: 0.9rem;
        padding: 0.6rem 1rem;
    }

    .deliverables-list {
        grid-template-columns: 1fr;
    }
    
    .category-image {
        height: 200px;
    }
    
    .timeline-item,
    .step-item {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .timeline-marker,
    .step-number {
        margin: 0 auto 1rem;
    }
    
    .achievements-grid,
    .highlights-grid,
    .features-grid,
    .advantages-grid,
    .standards-grid {
        grid-template-columns: 1fr;
    }
}