/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #fff;
    color: #333;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1620px;
    margin: 0 auto;
    padding: 0 15px;
    margin-top: 88px;
}

/* Banner样式 */
.banner {
    height: 300px;
    background-image: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('../picture/about-banner.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    position: relative;
}

.banner-content {
    padding-left: 80px;
    position: relative;
    z-index: 2;
}

.banner h1 {
    color: #fff;
    font-size: 42px;
    font-weight: 500;
}


.section-title {
    position: relative;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
}

/* 标题线通用样式 */
.title-line {
    display: block;
    width: 80px;
    height: 10px;
    background-color: #5d99d2;
    position: absolute;
    top: -30px;
    left: 0;
}

/* 标题居中样式 */
.section-title.center {
    justify-content: center;
    text-align: center;
    display: block;
}

.section-title.center .title-line {
    left: 50%;
    transform: translateX(-50%);
    bottom: 60px;
    top: auto;
}

.section-title h2 {
    font-size: 35px;
    font-weight: 700;
    text-transform: uppercase;
    color: #333;
}

/* 企业概述部分 */
.enterprise-overview {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
    flex-direction: column;
    background-color: #f5f5f5;
}

.company-image {
    flex: 0 0 48%;
    min-width: 300px;
}

.company-image img {
    width: 100%;
    height: auto;
    display: block;
}

.enterprise-content {
    flex: 0 0 48%;
    min-width: 300px;
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 120px;
    padding: 120px 150px;
}

.enterprise-content .section-title {
    flex: 0 0;
    margin-bottom: 0;
    margin-top: 0;
}

/* 企业概述标题线特殊样式 */
.enterprise-content .section-title .title-line {
    width: 80px;
    height: 10px;
    top: -30px;
}

.enterprise-content .section-title h2 {
    white-space: wrap;
    font-size: 40px;    
    font-weight: bold;
}

.enterprise-text {
    flex: 1;
    padding-top: 0;
}

.enterprise-text p {
    margin-bottom: 55px;
    font-size: 20px;
    color: #666;
    line-height: 1.8;
}

.enterprise-text p:last-child {
    margin-bottom: 0;
}

/* 企业风采样式 */
.corporate-style {
    padding: 180px 0 0 0 ; 
}

.corporate-style .section-title {
        margin-bottom: 60px;
}

.corporate-style .section-title h2 {
    margin-bottom: 20px;
}

.swiper-container.corporate-swiper {
    padding: 20px 0 50px;
    overflow: hidden;
}

.style-item {
    background: #fff;
    overflow: hidden;
    transition: transform 0.3s;
}

.style-item img {
    width: 100%;
    height: auto;
    display: block;
}

.style-caption {
    padding: 15px;
    text-align: center;
    font-weight: bold;
    color: #5d99d2;
}

/* 业务案例样式 */
.business-case {
    padding: 80px 0;
}

.business-case .section-title {
    text-align: center;
    display: block;
    margin-bottom: 60px;
}

.business-case .section-title h2 {
    margin-bottom: 20px;
}

.swiper-container.case-main-swiper {
    margin-bottom: 30px;
    position: relative;
}

.case-main-swiper img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.case-thumbs {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-top: 20px;
}

.case-thumb-item {
    width: calc(25% - 15px);
    margin-bottom: 20px;
    cursor: pointer;
    transition: transform 0.3s;
    position: relative;
}

.case-thumb-item img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    display: block;
}

/* 添加缩略图激活状态样式 */
.case-thumb-item.active {
    transform: translateY(-5px);
}

.case-thumb-item.active img {
    box-shadow: 0 5px 15px rgba(93, 153, 210, 0.5);
    border: 2px solid #5d99d2;
}

.case-thumb-item.active .thumb-caption {
    color: #5d99d2;
    font-weight: bold;
}

.thumb-caption {
    margin-top: 10px;
    text-align: center;
    font-size: 15px;
    font-weight: bold;
    color: #666;
    box-sizing: border-box;
    padding: 0 75px;
}

/* Swiper导航按钮样式 */
.swiper-button-next, .swiper-button-prev {
    color: #fff;
    width: 77px;
    height: 77px;
    background-color: rgba(0,0,0,0.6);
    border-radius: 5px;
}

.swiper-pagination-bullet-active {
    background: #5d99d2;
}

/* 响应式样式 */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
    
    .banner {
        height: 250px;
    }
    
    .banner h1 {
        font-size: 38px;
    }
    
    .section-title h2 {
        font-size: 26px;
    }
    
    .corporate-style, .business-case {
        padding: 60px 0;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
    
    .banner {
        height: 220px;
    }
    
    .banner h1 {
        font-size: 34px;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-title h2 {
        font-size: 24px;
    }
    
    .enterprise-overview {
        flex-direction: column;
        gap: 30px;
    }
    
    .company-image, .enterprise-content {
        flex: 0 0 100%;
    }
    
    .case-thumb-item {
        width: calc(50% - 10px);
    }
    
    .corporate-style, .business-case {
        padding: 50px 0;
    }
    
    .corporate-style .section-title, 
    .business-case .section-title {
        margin-bottom: 40px;
    }
    
    .enterprise-content {
        flex-direction: column;
        gap: 20px;
        padding: 60px 80px;
    }
    
    .enterprise-content .section-title {
        margin-bottom: 15px;
    }
    
    .enterprise-content .section-title h2 {
        font-size: 32px;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
    }
    
    .banner {
        height: 180px;
    }
    
    .banner-content {
        padding-left: 30px;
    }
    
    .banner h1 {
        font-size: 30px;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-title h2 {
        font-size: 22px;
    }
    
    .enterprise-text p {
        font-size: 15px;
        margin-bottom: 30px;
    }
    
    .corporate-style, .business-case {
        padding: 40px 0;
    }
    
    .corporate-style .section-title, 
    .business-case .section-title {
        margin-bottom: 30px;
    }
    
    .enterprise-content {
        padding: 40px 50px;
    }
    
    .enterprise-content .section-title h2 {
        font-size: 28px;
    }
}

@media (max-width: 576px) {
    .banner {
        height: 150px;
    }
    
    .banner-content {
        padding-left: 20px;
    }
    
    .banner h1 {
        font-size: 28px;
    }
    
    .section {
        padding: 30px 0;
    }
    
    .section-title {
        margin-bottom: 30px;
    }
    
    .section-title h2 {
        font-size: 20px;
    }
    
    .case-thumb-item {
        width: 100%;
        margin-bottom: 15px;
    }
    
    .corporate-style, .business-case {
        padding: 30px 0;
    }
    
    .enterprise-content {
        padding: 30px 20px;
    }
    
    .enterprise-content .section-title h2 {
        font-size: 24px;
    }
    
    .enterprise-text p {
        font-size: 14px;
        margin-bottom: 20px;
    }
}