/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

img {
    max-width: 100%;
    height: auto;
}

h1, h2, h3, h4 {
    margin-bottom: 15px;
}

a {
    text-decoration: none;
    color: inherit;
}

/* 头部横幅区域 */
.hero-banner {
    background-size: 100% auto;
    background-position: center;
    background-repeat: no-repeat;
    padding: 60px 0;
    color: #333;
    position: relative;
    width: 100%;
    min-height: 550px;
    display: flex;
    align-items: center;
}

@media (min-width: 1600px) {
    .hero-banner {
        min-height: 700px;
    }
}

@media (max-width: 1200px) {
    .hero-banner {
        min-height: 450px;
    }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    color: #4169E1;
    font-size: 42px;
    margin-bottom: 20px;
}

.hero-description {
    margin-bottom: 40px;
    font-size: 16px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.stats-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 0 30px;
}

.stat-item h2 {
    font-size: 48px;
    color: #333;
    font-weight: bold;
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 14px;
}

.stat-divider {
    width: 1px;
    height: 60px;
    background-color: #ccc;
}

/* 行业赋能区域 */
.industry-section {
    padding: 70px 0;
    text-align: center;
}

.section-title {
    font-size: 36px;
    margin-bottom: 20px;
    color: #333;
}

.section-description {
    max-width: 700px;
    margin: 0 auto 10px;
}

.blue-link {
    color: #4169E1;
    margin-bottom: 40px;
}

.industry-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.industry-card {
    background-color: #f8f9fa;
    border-radius: 8px;
    padding: 20px 40px;
    min-width: 160px;
    text-align: center;
}

.industry-name {
    font-weight: bold;
    margin-bottom: 5px;
}

.industry-label {
    font-size: 12px;
    color: #777;
}

/* 案例研究区域 */
.case-studies {
    padding: 40px 0 70px;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.case-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    padding: 30px;
    position: relative;
    display: flex;
    flex-direction: column;
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 25px;
    background-color: #f8f9fa;
    padding: 20px;
    margin: -30px -30px 20px -30px;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

.case-header h3 {
    font-size: 22px;
    margin-bottom: 5px;
}

.partner-type {
    font-size: 13px;
    color: #666;
}

.case-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-icon img {
    max-width: 100%;
    border-radius: 50%;
}

.section-icon {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
    flex-shrink: 0;
}

.challenge-section h4,
.solution-section h4,
.value-section h4 {
    display: inline-block;
    color: #333;
    font-size: 18px;
    margin-bottom: 5px;
}

.challenge-section,
.solution-section,
.value-section {
    margin-bottom: 20px;
    display: block;
}

.section-header {
    display: flex;
    align-items: flex-start;
    margin-bottom: 10px;
    width: 100%;
}

.challenge-section p,
.solution-section p {
    font-size: 14px;
    line-height: 1.6;
    margin-left: 0;
    padding-left: 0;
    margin-top: 10px;
}

.value-section {
    position: relative;
    margin: 30px 0 0;
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
}

.value-section h4 {
    color: #4CAF50;
}

.metrics-container {
    position: relative;
    margin: 0;
    padding: 0;
    border-top: 2px solid #4CAF50;
}

.metrics {
    display: flex;
    justify-content: space-between;
    padding: 20px;
    background-color: #f8f9fa;
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
}

.metric {
    text-align: center;
    width: 33%;
}

.metric h2 {
    color: #4CAF50;
    font-size: 32px;
    margin-bottom: 5px;
    font-weight: bold;
}

.metric p {
    font-size: 12px;
    color: #666;
}

.btn-wrapper {
    text-align: center;
    margin-top: auto;
}

.btn-partner {
    display: inline-block;
    background-color: #4169E1;
    color: white;
    padding: 12px 25px;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.btn-partner:hover {
    background-color: #3151b0;
}

.data-source {
    font-size: 11px;
    color: #999;
    font-style: italic;
    margin-top: 15px;
    text-align: center;
}

/* CTA 区域 */
.cta-section {
    background-size: cover;
    background-position: center;
    padding: 80px 0;
    text-align: center;
    color: #333;
}

.cta-section h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.cta-section p {
    max-width: 600px;
    margin: 0 auto 30px;
    font-size: 16px;
    line-height: 1.7;
}

.btn-cta {
    display: inline-block;
    background-color: white;
    color: #4169E1;
    padding: 14px 30px;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.btn-cta:hover {
    background-color: #f5f5f5;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .case-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-container {
        flex-direction: column;
    }
    
    .stat-divider {
        width: 80%;
        height: 1px;
        margin: 15px 0;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .industry-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .industry-card {
        width: 100%;
        max-width: 300px;
    }
    
    .metrics {
        flex-direction: column;
    }
    
    .metric {
        width: 100%;
        margin-bottom: 15px;
    }
    
    .metric:last-child {
        margin-bottom: 0;
    }
    
    .hero-content h1 {
        font-size: 32px;
    }
}