/* 应用领域页面样式 */

/* 基本样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 全局样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}


/* 英雄区域 */
.hero-section {
    position: relative;
    height: 80vh;
    min-height: 550px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e9f2 100%);
    overflow: hidden;
    border-bottom: 1px solid #e0e0e0;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 650px;
    padding: 0 80px;
}

.hero-badge {
    display: inline-block;
    background-color: #1a365d;
    color: #fff;
    padding: 10px 24px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    box-shadow: 0 4px 12px rgba(26, 54, 93, 0.2);
}

.hero-content h1 {
    font-size: 52px;
    color: #1a365d;
    margin-bottom: 24px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.5px;
}

.hero-content p {
    font-size: 20px;
    color: #4a5568;
    margin-bottom: 48px;
    line-height: 1.7;
    font-weight: 400;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 16px 24px;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    font-size: 15px;
    color: #1a365d;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid rgba(26, 54, 93, 0.1);
}

.feature-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    border-color: rgba(26, 54, 93, 0.2);
}

.feature-icon-img {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

.hero-background {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 55%;
    z-index: 1;
    overflow: hidden;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.95) contrast(1.05);
}

/* 装饰元素 */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(26, 54, 93, 0.05) 0%, transparent 50%);
    z-index: 1;
}

/* 概览部分 */
.overview-section {
    padding: 120px 0;
    background-color: #ffffff;
    border-bottom: 1px solid #e0e0e0;
}

.section-title {
    font-size: 40px;
    color: #1a365d;
    margin-bottom: 24px;
    text-align: center;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.section-description {
    font-size: 18px;
    color: #4a5568;
    text-align: center;
    margin-bottom: 80px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    font-weight: 400;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.overview-card {
    background-color: #f8f9fa;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 50px 36px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.card-image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.card-image-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.card-bg-image {
    width: 100%;
    height: 160%;
    object-fit: cover;
    transition: transform 0.1s ease-out;
}

.overview-card > *:not(.card-image-container) {
    position: relative;
    z-index: 2;
    color: white;
}

.overview-card h3 {
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.overview-card p {
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.card-link {
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.card-link:hover {
    color: white;
}

.overview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #1a365d 0%, #3182ce 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.overview-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.1);
    border-color: #cbd5e0;
}

.overview-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 96px;
    height: 96px;
    margin: 0 auto 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: #fff;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
}

.overview-card:hover .card-icon {
    transform: scale(1.05);
    box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.icon-img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.industrial-icon {
    background: transparent;
}

.aerospace-icon {
    background: transparent;
}

.energy-icon {
    background: transparent;
}

.medical-icon {
    background: transparent;
}

.overview-card h3 {
    font-size: 24px;
    color: #1a365d;
    margin-bottom: 20px;
    font-weight: 600;
    transition: color 0.3s ease;
}

.overview-card:hover h3 {
    color: #2b6cb0;
}

.overview-card p {
    font-size: 16px;
    color: #4a5568;
    margin-bottom: 32px;
    line-height: 1.7;
    transition: color 0.3s ease;
}

.overview-card:hover p {
    color: #2d3748;
}

.card-link {
    display: inline-block;
    color: #2b6cb0;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding-right: 24px;
}

.card-link::after {
    content: '→';
    position: absolute;
    right: 0;
    top: 0;
    transition: transform 0.3s ease;
}

.card-link:hover {
    color: #1a365d;
}

.card-link:hover::after {
    transform: translateX(8px);
}

/* 应用详情部分 */
.application-detail-section {
    padding: 120px 0;
    background-color: #f8f9fa;
    border-top: 1px solid #e2e8f0;
}

.application-detail-section:nth-child(even) {
    background-color: #ffffff;
}

.detail-content {
    display: flex;
    align-items: center;
    gap: 80px;
    margin-bottom: 80px;
}

.detail-image {
    flex: 1;
    max-width: 550px;
}

.detail-img {
    width: 100%;
    height: 450px;
    object-fit: contain;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.detail-img:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.detail-info {
    flex: 1;
    max-width: 650px;
}

.detail-info h3 {
    font-size: 32px;
    color: #1a365d;
    margin-bottom: 24px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.detail-info p {
    font-size: 18px;
    color: #4a5568;
    margin-bottom: 36px;
    line-height: 1.7;
}

.application-scenarios h4 {
    font-size: 20px;
    color: #1a365d;
    margin-bottom: 20px;
    font-weight: 600;
}

.scenario-list {
    list-style: none;
}

.scenario-list li {
    font-size: 16px;
    color: #4a5568;
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    line-height: 1.6;
}

.scenario-bullet {
    color: #3182ce;
    font-weight: 700;
    margin-top: 4px;
    font-size: 18px;
}

/* 产品展示 */
.product-showcase {
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid #e2e8f0;
}

.product-showcase h4 {
    font-size: 24px;
    color: #1a365d;
    margin-bottom: 36px;
    font-weight: 600;
    text-align: center;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 36px;
}

.product-card {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 36px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #3182ce 0%, #1a365d 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.12);
    border-color: #cbd5e0;
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #f8f9fa 0%, #edf2f7 100%);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s ease;
}

.product-card:hover .product-img {
    transform: scale(1.05);
}

.product-card h5 {
    font-size: 18px;
    color: #1a365d;
    margin-bottom: 12px;
    font-weight: 600;
    transition: color 0.3s ease;
}

.product-card:hover h5 {
    color: #2b6cb0;
}

.product-card p {
    font-size: 14px;
    color: #4a5568;
    line-height: 1.6;
    transition: color 0.3s ease;
}

.product-card:hover p {
    color: #2d3748;
}

/* 案例部分 */
.case-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #1a365d 0%, #2c5282 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.case-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: 1;
}

.case-section .container {
    position: relative;
    z-index: 2;
}

.case-section .section-title {
    color: #ffffff;
}

.case-section .section-description {
    color: rgba(255,255,255,0.9);
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 48px;
    margin-top: 80px;
}

.case-card {
    background-color: rgba(255,255,255,0.1);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s ease;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.1);
}

.case-card:hover {
    transform: translateY(-12px);
    background-color: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.2);
    box-shadow: 0 20px 48px rgba(0,0,0,0.2);
}

.case-header {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.case-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.case-card:hover .case-img {
    transform: scale(1.08);
}

.case-tag {
    position: absolute;
    top: 24px;
    left: 24px;
    background-color: rgba(26, 54, 93, 0.9);
    color: #fff;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.case-content {
    padding: 36px;
}

.case-content h3 {
    font-size: 20px;
    margin-bottom: 20px;
    font-weight: 600;
    color: #ffffff;
}

.case-content p {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 30px;
    color: rgba(255,255,255,0.9);
}

.case-metrics {
    display: flex;
    gap: 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.metric-item {
    text-align: center;
    flex: 1;
}

.metric-value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #63b3ed;
    margin-bottom: 8px;
}

.metric-label {
    display: block;
    font-size: 13px;
    color: rgba(255,255,255,0.8);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* 技术优势部分 */
.advantage-section {
    padding: 120px 0;
    background-color: #f8f9fa;
    border-top: 1px solid #e2e8f0;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 48px;
    margin-top: 80px;
}

.advantage-card {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 48px 36px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #3182ce 0%, #1a365d 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.advantage-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.1);
    border-color: #cbd5e0;
}

.advantage-card:hover::before {
    transform: scaleX(1);
}

.advantage-icon {
    font-size: 56px;
    margin-bottom: 28px;
    display: block;
    transition: transform 0.4s ease;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1);
}

.advantage-card h3 {
    font-size: 22px;
    color: #1a365d;
    margin-bottom: 20px;
    font-weight: 600;
    transition: color 0.3s ease;
}

.advantage-card:hover h3 {
    color: #2b6cb0;
}

.advantage-card p {
    font-size: 16px;
    color: #4a5568;
    line-height: 1.7;
    transition: color 0.3s ease;
}

.advantage-card:hover p {
    color: #2d3748;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-content {
        padding: 0 60px;
    }
    
    .hero-content h1 {
        font-size: 44px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    .hero-background {
        width: 45%;
    }
    
    .detail-content {
        flex-direction: column;
        text-align: center;
        gap: 56px;
    }
    
    .detail-image,
    .detail-info {
        max-width: 100%;
    }
    
    .detail-img {
        max-width: 550px;
        margin: 0 auto;
    }
    
    .overview-grid,
    .product-grid,
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .case-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-section {
        flex-direction: column;
        text-align: center;
        height: auto;
        padding: 80px 20px;
        min-height: 500px;
    }
    
    .hero-content {
        max-width: 100%;
        padding: 0;
        order: 2;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    .hero-background {
        position: relative;
        width: 100%;
        height: 320px;
        order: 1;
        margin-bottom: 48px;
    }
    
    .hero-features {
        justify-content: center;
        gap: 16px;
    }
    
    .feature-item {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .overview-section,
    .application-detail-section,
    .case-section,
    .advantage-section {
        padding: 80px 20px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .section-description {
        font-size: 16px;
        margin-bottom: 60px;
    }
    
    .overview-grid,
    .product-grid,
    .case-grid,
    .advantage-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .overview-card,
    .product-card,
    .advantage-card {
        padding: 40px 28px;
    }
    
    .detail-img {
        height: 350px;
        padding: 32px;
    }
    
    .detail-info h3 {
        font-size: 28px;
    }
    
    .detail-info p {
        font-size: 16px;
    }
    
    .case-header {
        height: 180px;
    }
    
    .case-content {
        padding: 28px;
    }
    
    .case-metrics {
        flex-direction: column;
        gap: 24px;
    }
    
    .metric-value {
        font-size: 24px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .overview-grid,
    .product-grid,
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .case-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 40px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    .overview-section,
    .application-detail-section,
    .case-section,
    .advantage-section {
        padding: 100px 20px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
    }
    
    .feature-item {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .overview-card,
    .product-card,
    .advantage-card {
        padding: 32px 24px;
    }
    
    .card-icon {
        width: 80px;
        height: 80px;
        font-size: 32px;
    }
    
    .detail-img {
        height: 300px;
        padding: 24px;
    }
}