/* ===== 关于我们页面样式 ===== */
/* ===== banner区域 ===== */
.about-center-banner {
    height: 400px;
    background-image: url('https://langzhi-static-resource.oss-cn-shanghai.aliyuncs.com/official-website/images/about/banner.jpg');
    background-size: cover;
    background-position: center;
    padding: 160px 0;
    text-align: left; /* 改为左对齐 */
    position: relative;
}

.about-center-banner::before {  
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: transparent; 
    opacity: 0.7;
}

.about-center-banner .container {
    position: relative;
    z-index: 1;
    padding-left: 0; /* 去除容器左侧内边距 */
    max-width: 100%; /* 使容器宽度最大化 */
}

.about-center-banner .banner-content {
    margin: 0; /* 去除所有外边距 */
    padding-left: 298px; /* 可根据需要调整少量内边距，确保文字不会完全贴边 */
}

.about-center-banner h1 {
    font-size: 48px;
    color: white;
    margin: 0 0 10px;
    font-weight: 700;
    text-align: left; /* 标题左对齐 */
}

.about-center-banner .subtitle {
    font-size: 24px;
    color: white;
    margin: 0;
    font-weight: 300;
    text-align: left; /* 副标题左对齐 */
}
.body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: rgb(240, 241, 242);
}

/* 公司简介 */
.company-intro {
    padding: 100px 0;
    background-color: #fff;
}

.company-intro-title {
    margin-bottom: 60px;
    text-align: center;
}

.company-intro-title h2 {
    font-size: 46px;
    font-weight: 700;
    color: rgba(44, 55, 66, 1);
}

.company-intro-title p {
    font-size: 20px;
    font-weight: 400;
    color: rgba(119, 126, 133, 1);
}

/* 使用Flexbox紧密布局 */
.intro-content {
    display: flex;
    align-items: center;
    justify-content: space-between; /* 空间分布 */
    flex-wrap: wrap;
}

.intro-text {
    flex: 1;
    max-width: calc(50% - 10px); /* 精确控制宽度 */
}

.intro-image {
    flex: 0 0 calc(50% - 10px);
    max-width: 500px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

@media (max-width: 992px) {
    .intro-text,
    .intro-image {
        flex: 1 1 100%;
        max-width: 100%;
    }
}

.intro-text h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 25px;
    font-weight: 600;
}

.intro-text p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.intro-image {
    flex: 0 0 500px;
    width: 600px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

/* 公司优势 */
.company-advantages {
    padding: 100px 0;
    background: rgb(34, 31, 31);
}

.company-advantages-title {
    margin-bottom: 60px;
}

.company-advantages-title h2 {
    font-size: 46px;
    font-weight: 400;
    color: #fff;
    text-align: center;
    margin-bottom: 20px;
}

.company-advantages-title p.subtitle {
    font-size: 20px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    margin-bottom: 30px;
}

.company-advantages-title p.description {
    font-size: 20px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: -20px;
}

/* 仅修改现有优势卡片 - 图片靠左 */
.advantage-card {
    color: #fff;
    padding: 30px;
    border-radius: 8px;
    text-align: left; /* 改为左对齐 */
    transition: transform 0.3s, box-shadow 0.3s;
    background: linear-gradient(225.56deg, rgb(41, 41, 46) 0%, rgb(31, 31, 36) 100%);
    box-shadow: 0px 10px 20px  rgb(15, 15, 16);
}

.advantage-card .advantage-icon {
    margin: 0 0 20px 0; /* 左对齐margin */
    text-align: center;
}

.advantage-card .advantage-icon img {
    width: 88px;
    height: 88px;
}   

.advantage-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: 600;
    text-align: center;
}

.advantage-card p {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.6;
    text-align: center;
}

/* 团队介绍 */
.team-section {
    padding: 100px 0;
    background-color: #fff;
}

.team-section-title {
    margin-bottom: 60px;
    text-align: center;
}

.team-section-title h2 {
    font-size: 46px;
    font-weight: 700;
    color: rgba(44, 55, 66, 1);
}

.team-section-title p {
    font-size: 20px;
    font-weight: 400;
    color: rgba(119, 126, 133, 1);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.team-member {
    text-align: center;
}

.member-photo {
    width: 220px;
    height: 220px;
    border-radius: 8px;
    overflow: hidden;
    margin: 0 auto 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.team-member:hover .member-photo img {
    transform: scale(1.05);
}

.member-info h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 5px;
    font-weight: 600;
}

.member-info p {
    font-size: 14px;
    color: #666;
}

/* 合作伙伴 */
.partners-section {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
    background-color: #fff;
    border-radius: 8px;
    padding: 0 20px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.partner-logo:hover {
    transform: translateY(-5px);
}

.partner-logo img {
    max-width: 100%;
    max-height: 50px;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.partner-logo:hover img {
    opacity: 1;
}

/* 公司简介卡片样式 */
.intro-card {
    background-color: #fff;
    padding: 40px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e0e0e0;
}

.intro-card h3 {
    font-size: 26px;
    color: #1e88e5;
    margin-bottom: 20px;
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.intro-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: #1e88e5;
    border-radius: 2px;
}

.intro-card p {
    font-size: 16px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 15px;
    text-align: justify;
}

.intro-card p:last-child {
    margin-bottom: 0;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .intro-card {
        padding: 30px 25px;
    }
    
    .intro-card h3 {
        font-size: 22px;
    }
}

/* ===== 合作伙伴展示区域样式 ===== */
.partners {
    padding: 100px 0; /* 上下内边距 */
    background-color: #fafafa; /* 浅色背景 */
}

.partner-logos {
    display: grid; /* 使用grid布局 */
    grid-template-columns: repeat(5, 1fr); /* 5列布局 */
    gap: 30px; /* 元素间距 */
}

.partner-logo {
    display: flex; /* 使用flex布局 */
    align-items: center; /* 垂直居中 */
    justify-content: center; /* 水平居中 */
    height: 120px; /* 高度 */
    background-color: #fff; /* 白色背景 */
    border-radius: 8px; /* 圆角 */
    padding: 20px; /* 内边距 */
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05); /* 阴影效果 */
    transition: all 0.3s; /* 过渡动画 */
    border: 1px solid rgba(0, 0, 0, 0.05); /* 边框 */
}

/* 合作伙伴Logo悬停效果 */
.partner-logo:hover {
    transform: translateY(-5px); /* 上移创造悬浮感 */
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1); /* 阴影效果增强 */
}

.partner-logo img {
    max-width: 100%; /* 最大宽度 */
    max-height: 80px; /* 最大高度 */
    /*filter: grayscale(100%);*/ /* 黑白效果 */
    transition: filter 0.3s; /* 过滤效果过渡 */
}

/* 合作伙伴Logo悬停颜色效果 */
.partner-logo:hover img {
    filter: grayscale(0%); /* 恢复彩色 */
}

/* 响应式设计 */
@media (max-width: 992px) {
    .intro-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .partner-logos {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .about-center-banner {
        height: 300px;
        padding: 120px 0;
    }
    
    .about-center-banner h1 {
        font-size: 40px;
    }
    
    .company-intro-title h2 {
        font-size: 32px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .partner-logos {
        grid-template-columns: repeat(2, 2fr);
    }
}

@media (max-width: 576px) {
    .about-center-banner {
        height: 250px;
        padding: 100px 0;
    }
    
    .about-center-banner h1 {
        font-size: 32px;
    }
    
    .company-intro,
    .company-advantages,
    .team-section {
        padding: 60px 0;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .advantage-card,
    .team-member {
        padding: 20px;
    }
    
    .partner-logos {
        grid-template-columns: repeat(2, 1fr); /* 5列布局 */
        gap: 15px;
    }
}

@media (max-width: 320px) {
    .about-center-banner h1 {
        font-size: 28px;
    }
    
    .company-intro-title h2 {
        font-size: 28px;
    }
    
    .advantage-card h3 {
        font-size: 18px;
    }
    
    .team-member h3 {
        font-size: 16px;
    }
}