/* 页面标题样式 */
.page-title {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../images/about-banner.jpg') no-repeat center center;
    background-size: cover;
    padding: 100px 0;
}

.page-title-about {
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../images/about-banner.jpg') no-repeat center center;
    background-size: cover;
    padding: 120px 0;
}

.page-title h1 {
    font-size: 42px;
    margin-bottom: 15px;
    font-weight: 700;
}

.page-subtitle {
    margin-top: 20px;
}

.page-subtitle p {
    font-size: 20px;
    color: #fff;
    font-weight: 300;
}

.breadcrumb {
    font-size: 14px;
}

.breadcrumb a {
    color: #fff;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* 公司简介部分 */
.company-intro {
    padding: 90px 0;
}

.intro-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.intro-content.reverse {
    flex-direction: row-reverse;
}

.intro-text {
    flex: 1;
}

.section-header {
    margin-bottom: 40px;
}

.section-header .section-subtitle {
    display: inline-block;
    background-color: rgba(51, 153, 102, 0.1);
    color: #2c9;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 15px;
}

.section-header h2 {
    font-size: 36px;
    color: #333;
    margin-bottom: 20px;
    font-weight: 700;
}

.section-header.text-center {
    text-align: center;
    margin-bottom: 50px;
}

.section-desc {
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin: 0 auto 30px;
}

.intro-highlight {
    font-size: 20px;
    color: #333;
    font-weight: 500;
    line-height: 1.6;
    margin-bottom: 20px;
}

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

.company-data {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.data-item {
    text-align: center;
}

.data-number {
    font-size: 36px;
    font-weight: 700;
    color: #2c9;
    margin-bottom: 5px;
}

.data-label {
    font-size: 16px;
    color: #666;
}

.intro-image {
    flex: 1;
    position: relative;
}

.intro-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.intro-video {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
}

.video-play-btn {
    display: inline-block;
    width: 80px;
    height: 80px;
    line-height: 80px;
    text-align: center;
    background: rgba(51, 153, 102, 0.8);
    color: #fff;
    border-radius: 50%;
    font-size: 30px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.video-play-btn:hover {
    background: #2c9;
    transform: scale(1.1);
}

.intro-video span {
    display: block;
    font-size: 14px;
    margin-top: 10px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.group-indicators {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 30px;
}

.indicator-item {
    display: flex;
    align-items: center;
    background: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.indicator-item i {
    color: #2c9;
    font-size: 20px;
    margin-right: 10px;
}

.indicator-item span {
    color: #333;
    font-weight: 500;
}

/* 核心团队 */
.team-section {
    padding: 90px 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.team-member {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-10px);
}

.member-photo {
    position: relative;
    overflow: hidden;
}

.member-photo img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.member-info {
    padding: 25px 20px;
    text-align: center;
}

.member-info h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 5px;
}

.member-position {
    display: block;
    color: #2c9;
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 15px;
}

.member-info p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.member-social {
    display: flex;
    justify-content: center;
}

.member-social a {
    display: inline-block;
    width: 36px;
    height: 36px;
    line-height: 36px;
    background: #f5f5f5;
    color: #333;
    border-radius: 50%;
    margin: 0 5px;
    transition: all 0.3s ease;
}

.member-social a:hover {
    background: #2c9;
    color: #fff;
}

/* 核心技术能力 */
.capabilities-section {
    padding: 90px 0;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.capability-item {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
    text-align: center;
    transition: all 0.3s ease;
}

.capability-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.capability-icon {
    width: 80px;
    height: 80px;
    line-height: 80px;
    font-size: 36px;
    color: #2c9;
    background: rgba(51, 153, 102, 0.1);
    border-radius: 50%;
    margin: 0 auto 25px;
}

.capability-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.capability-item p {
    color: #666;
    font-size: 15px;
    line-height: 1.6;
}

/* ESG责任 */
.esg-section {
    padding: 90px 0;
}

.esg-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.esg-item {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
    transition: all 0.3s ease;
}

.esg-item:hover {
    transform: translateY(-10px);
}

.esg-icon {
    width: 70px;
    height: 70px;
    line-height: 70px;
    font-size: 30px;
    color: #fff;
    background: #2c9;
    border-radius: 50%;
    margin-bottom: 25px;
    text-align: center;
}

.esg-item h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.esg-item p {
    color: #666;
    font-size: 15px;
    line-height: 1.6;
}

/* 发展历程 */
.history-section {
    padding: 90px 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
    font-weight: 700;
}

/* 横向时间轴样式 */
.history-timeline {
    position: relative;
    margin: 50px auto;
    padding: 40px 0;
}

.timeline-horizontal {
    display: flex;
    position: relative;
    overflow-x: auto;
    padding: 20px 0 60px;
    direction: ltr;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: rgba(51, 153, 102, 0.5) rgba(240, 240, 240, 0.5);
}

/* 美化滚动条 */
.timeline-horizontal::-webkit-scrollbar {
    height: 6px;
}

.timeline-horizontal::-webkit-scrollbar-track {
    background: rgba(240, 240, 240, 0.5);
    border-radius: 3px;
}

.timeline-horizontal::-webkit-scrollbar-thumb {
    background: rgba(51, 153, 102, 0.5);
    border-radius: 3px;
}

.timeline-horizontal::-webkit-scrollbar-thumb:hover {
    background: rgba(51, 153, 102, 0.8);
}

/* 连接线 */
.timeline-horizontal:before {
    content: '';
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    height: 2px;
    background: #e0e0e0;
    z-index: 1;
}

.timeline-item-horizontal {
    position: relative;
    min-width: 220px;
    margin: 0 20px;
    flex: 1;
    z-index: 2;
    text-align: center;
}

.timeline-item-horizontal:first-child {
    margin-left: 0;
}

.timeline-item-horizontal:last-child {
    margin-right: 0;
}

.timeline-item-horizontal .year {
    background: #2c9;
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 20px;
    position: relative;
    left: 15%;
    transform: translateX(-50%);
    text-align: center;
    min-width: 80px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(51, 153, 102, 0.2);
}

.timeline-item-horizontal:hover .year {
    transform: translateX(-50%) translateY(-5px);
    box-shadow: 0 6px 15px rgba(51, 153, 102, 0.3);
}

.timeline-item-horizontal .dot {
    position: absolute;
    width: 16px;
    height: 16px;
    background: #2c9;
    border-radius: 50%;
    left: 50%;
    transform: translateX(-50%);
    top: 70px;
    z-index: 3;
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px #2c9;
    transition: all 0.3s ease;
}

.timeline-item-horizontal:hover .dot {
    transform: translateX(-50%) scale(1.2);
    background: #27b080;
}

.timeline-item-horizontal .content {
    background: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
    margin-top: 35px;
    transition: transform 0.3s ease;
    text-align: center;
}

.timeline-item-horizontal:hover .content {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.timeline-item-horizontal .content h3 {
    color: #333;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.timeline-item-horizontal .content p {
    color: #666;
    line-height: 1.6;
    font-size: 14px;
}

/* 企业文化 */
.culture-section {
    padding: 90px 0;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 50px auto 0;
}

.culture-item {
    text-align: center;
    padding: 40px 20px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
    transition: transform 0.3s ease;
}

.culture-item:hover {
    transform: translateY(-10px);
}

.culture-icon {
    font-size: 40px;
    color: #2c9;
    margin-bottom: 25px;
}

.culture-item h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 15px;
    font-weight: 600;
}

.culture-item p {
    color: #666;
    line-height: 1.6;
}

/* 荣誉资质 */
.awards-section {
    padding: 90px 0;
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.award-item {
    background: #fff;
    /* border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
    transition: transform 0.3s ease; */
}

.award-item:hover {
    transform: translateY(-10px);
}

.award-image {
    overflow: hidden;
}

.award-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.award-info {
    padding: 25px 20px;
    text-align: center;
}

.award-info h3 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.award-info p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

/* 联系我们 */
.contact-section {
    padding: 90px 0;
}

.contact-content {
    display: flex;
    gap: 40px;
    margin-top: 50px;
}

.contact-left {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-info {
    background: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
}

.info-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -10px 15px;
}

.info-col {
    flex: 1;
    min-width: 30%;
    padding: 0 10px;
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-item i,
.info-col i {
    font-size: 22px;
    color: #2c9;
    margin-right: 12px;
    margin-top: 3px;
    flex-shrink: 0;
}

.info-text h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 5px;
    font-weight: 600;
}

.info-text p {
    font-size: 15px;
    color: #666;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 25px;
}

.social-link {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    background: #f5f5f5;
    color: #333;
    border-radius: 50%;
    font-size: 18px;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #2c9;
    color: #fff;
}

/* 百度地图 */
.map-container {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
}

.map-header {
    padding: 15px 20px;
    background: #f7f9fa;
    border-bottom: 1px solid #eee;
}

.map-header h3 {
    font-size: 18px;
    color: #333;
    margin: 0;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.map-header h3 i {
    color: #2c9;
    margin-right: 10px;
    font-size: 20px;
}

.baidu-map {
    height: 280px;
    width: 100%;
}

.tianditu-map {
    height: 350px;
    width: 100%;
}

/* 联系表单 */
.contact-form {
    flex: 1.2;
    background: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-header {
    margin-bottom: 30px;
}

.form-header h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
}

.form-header p {
    color: #666;
    font-size: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    font-size: 16px;
    color: #333;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #2c9;
    box-shadow: 0 0 0 3px rgba(51, 153, 102, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: #999;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    text-align: right;
}

.btn-primary {
    background: #2c9;
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: #27b080;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(51, 153, 102, 0.3);
}

.btn-green {
    background: #2c9;
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
}

.btn-green:hover {
    background: #27b080;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(51, 153, 102, 0.3);
}

/* 合作咨询 */
.contact-cta-section {
    padding: 90px 0;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/cta-bg.jpg') no-repeat center;
    background-size: cover;
    color: #fff;
    text-align: center;
}

.green-bg {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../images/cta-bg.jpg') no-repeat center;
    position: relative;
}

.green-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(51, 153, 102, 0.8);
    z-index: 1;
}

.green-bg .container {
    position: relative;
    z-index: 2;
}

.contact-cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.contact-cta-content h3 {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 20px;
}

.contact-cta-content p {
    font-size: 16px;
    max-width: 800px;
    margin: 0 auto 30px;
    line-height: 1.8;
}

.contact-cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn-white {
    background: #fff;
    color: #2c9;
    border: none;
    padding: 12px 30px;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
}

.btn-white:hover {
    background: #f5f5f5;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

.btn-outline-white {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
    padding: 10px 28px;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* 通用背景色 */
.bg-white {
    background-color: #ffffff;
}

.bg-light-gray {
    background-color: #f7f9fa;
}

.bg-green-light {
    background-color: #f0f9f4;
}

.bg-green {
    background-color: #f0f9f4;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .team-grid, 
    .capabilities-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .intro-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .intro-content.reverse {
        flex-direction: column;
    }
    
    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .awards-grid,
    .capabilities-grid,
    .esg-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        flex-direction: column;
    }
    
    .company-data {
        justify-content: space-between;
    }

    .contact-form {
        margin-top: 30px;
    }
}

@media (max-width: 768px) {
    .page-title h1 {
        font-size: 32px;
    }
    
    .timeline-item {
        width: 100%;
        padding-right: 0;
        padding-left: 70px;
        margin-bottom: 30px;
    }
    
    .timeline-item:nth-child(even) {
        margin-left: 0;
        padding-left: 70px;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item .year,
    .timeline-item:nth-child(even) .year {
        left: -15px;
        right: auto;
    }
    
    .culture-grid,
    .awards-grid,
    .capabilities-grid,
    .esg-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2,
    .section-title {
        font-size: 28px;
    }
    
    .company-data {
        flex-direction: column;
        gap: 20px;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .baidu-map,
    .tianditu-map {
        height: 240px;
    }
    
    .info-col {
        min-width: 100%;
    }
}

@media (max-width: 576px) {
    .page-title {
        padding: 80px 0;
    }
    
    .page-title h1 {
        font-size: 28px;
    }
    
    .contact-cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .form-submit {
        text-align: center;
    }

    .btn-primary, 
    .btn-green {
        width: 100%;
    }

    .contact-form {
        padding: 25px 15px;
    }
    
    .contact-info {
        padding: 20px;
    }
    
    .info-row {
        margin: 0 0 15px;
    }
    
    .info-col {
        padding: 0;
        margin-bottom: 15px;
    }
}

/* 微妙的装饰线 */
.section:not(.page-title) {
    position: relative;
}

/* .section.bg-white + .section.bg-light-gray:before,
.section.bg-light-gray + .section.bg-white:before,
.section.bg-white + .section.bg-green-light:before,
.section.bg-green-light + .section.bg-white:before,
.section.bg-light-gray + .section.bg-green-light:before,
.section.bg-green-light + .section.bg-light-gray:before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: #2c9;
    border-radius: 3px;
} */

/* 背景装饰 */
.bg-green-light {
    position: relative;
    overflow: hidden;
}

.bg-green-light:before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(51, 153, 102, 0.05);
    top: -150px;
    right: -150px;
}

.bg-green-light:after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(51, 153, 102, 0.05);
    bottom: -100px;
    left: -100px;
}

.section {
    padding: 80px 0;
}

.section.bg-white {
    padding: 90px 0;
}

.section.bg-light-gray {
    padding: 90px 0;
}

.section.bg-green-light {
    padding: 90px 0;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .timeline-horizontal {
        overflow-x: auto;
        padding-bottom: 40px;
    }
    
    .timeline-item-horizontal {
        min-width: 200px;
    }
    
    .timeline-item-horizontal .content {
        padding: 15px;
    }
    
    .history-section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
        margin-bottom: 30px;
    }
}

@media screen and (max-width: 480px) {
    .timeline-item-horizontal {
        min-width: 180px;
    }
    
    .timeline-item-horizontal .year {
        font-size: 14px;
        padding: 6px 12px;
    }
    
    .timeline-item-horizontal .content h3 {
        font-size: 16px;
    }
    
    .timeline-item-horizontal .content p {
        font-size: 13px;
    }
}

/* 时间轴交互样式 */
.timeline-horizontal.active {
    cursor: grabbing;
    cursor: -webkit-grabbing;
    user-select: none;
}

.timeline-item-horizontal:hover {
    transform: translateY(-5px);
    transition: transform 0.3s ease;
}

.timeline-item-horizontal:hover .timeline-date {
    color: #0056b3;
    font-weight: bold;
}

.timeline-item-horizontal:hover .timeline-content {
    background-color: #f8f9fa;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}