/* about.css */
:root {
    --primary-color: #00928c;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #fff;
    --shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 公司简介 - 主要模块 */
.company-intro {
    padding: 100px 0;
    background: var(--white);
    position: relative;
}

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

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

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

.section-title h2 {
    font-size: 42px;
    color: var(--text-dark);
    margin-bottom: 30px;
    font-weight: 600;
    line-height: 1.2;
}

.title-line {
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin: 0 auto;
}

.intro-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
    max-width: 900px;
    margin: 0 auto;
}

.intro-video {
    max-width: 1000px;
    margin: 0 auto;
}

.video-card {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.video-thumbnail {
    position: relative;
    width: 100%;
}

.video-thumbnail img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    display: block;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.play-button i {
    font-size: 36px;
    color: var(--primary-color);
    transition: var(--transition);
}

.play-button:hover {
    background: var(--primary-color);
}

.play-button:hover i {
    color: var(--white);
}

/* 企业愿景与使命*/
.vision-mission {
    padding: 80px 0;
    background: linear-gradient(to bottom, var(--white), var(--bg-light));
}

.content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    gap: 25px;
    padding: 0 20px;
}

/* 卡片共同样式 */
.vision-block, .mission-block {
    flex: 1;
    background: #fff;
    border-radius: 15px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.vision-block:hover, .mission-block:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

/* 文字内容样式 */
.text-content {
    text-align: center;
}

.text-content h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-weight: 600;
    position: relative;
    padding-bottom: 15px;
}

.text-content h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--primary-color);
}

.text-content p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
    margin: 0;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .content-wrapper {
        flex-wrap: wrap;
        gap: 20px;
    }

    .vision-block, .mission-block {
        flex: 1 1 calc(50% - 20px); /* 平板上两列显示 */
    }
}

@media (max-width: 768px) {
    .vision-mission {
        padding: 40px 0;
    }

    .vision-block, .mission-block {
        flex: 1 1 100%; /* 手机上单列显示 */
        padding: 30px 20px;
    }

    .text-content h3 {
        font-size: 20px;
        margin-bottom: 15px;
    }

    .text-content p {
        font-size: 15px;
    }
}


@media (max-width: 992px) {
    .company-intro {
        padding: 80px 0;
    }
    
    .section-title h2 {
        font-size: 36px;
    }
    
    .video-thumbnail img {
        height: 500px;
    }
    
    .play-button {
        width: 80px;
        height: 80px;
    }
    
    .play-button i {
        font-size: 30px;
    }
    
    .text-content h3 {
        font-size: 32px;
    }
    
    .image-content img {
        height: 400px;
    }
}

@media (max-width: 768px) {
    .company-intro {
        padding: 60px 0;
    }
    
    .section-title h2 {
        font-size: 30px;
        margin-bottom: 20px;
    }
    
    .intro-text {
        font-size: 15px;
        padding: 0 20px;
    }
    
    .video-thumbnail img {
        height: 400px;
        border-radius: 20px;
    }
    
    .play-button {
        width: 60px;
        height: 60px;
    }
    
    .play-button i {
        font-size: 24px;
    }
    
    .text-content h3 {
        font-size: 28px;
    }
    
    .text-content p {
        font-size: 15px;
    }
    
    .image-content img {
        height: 300px;
    }
    
    .mission-block {
        margin-top: 60px;
    }
}

/* 动画效果 */
.wow {
    visibility: hidden;
}

.fadeInUp {
    animation-name: fadeInUp;
    animation-duration: 1s;
    animation-fill-mode: both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 40px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

[data-wow-delay] {
    animation-delay: var(--wow-delay);
}

/* 视频播放相关样式 */
.video-card {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    z-index: 10;
}

.video-container.active {
    display: block;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.close-video {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    cursor: pointer;
    z-index: 11;
    transition: var(--transition);
}

.close-video::before,
.close-video::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

.close-video::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.close-video::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.close-video:hover {
    background: var(--white);
    transform: rotate(90deg);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .close-video {
        width: 32px;
        height: 32px;
        top: 15px;
        right: 15px;
    }
    
    .close-video::before,
    .close-video::after {
        width: 16px;
    }
}

/* Banner整体控制 */
.page-banner {
    margin-top: 90px; /* 根据顶部导航高度调整 */
    position: relative;
    height: 900px; /* 固定高度 */
    width: 100%;
    overflow: hidden; /* 防止内容溢出 */
}

/* 图片容器 */
.banner-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.banner-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* 遮罩层 */
.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, 
        rgba(0, 0, 0, 0.4) 0%,
        rgba(0, 0, 0, 0.2) 30%,
        rgba(0, 0, 0, 0.05) 100%);
    z-index: 2;
}

/* Banner内容区域 */
.banner-content {
    position: relative;
    z-index: 3;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-container {
    width: 100%;
    max-width: 800px;
    padding: 0 40px;
    text-align: center;
}

/* 文字样式 */
.banner-content h1 {
    font-size: 48px;
    color: #fff;
    font-weight: 700;
    margin-bottom: 25px;
    line-height: 1.2;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.banner-content p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto;
    text-shadow: 1px 1px 6px rgba(0, 0, 0, 0.3);
}

/* 响应式调整 */
@media (max-width: 992px) {
    .page-banner {
        height: 700px;
    }
}

@media (max-width: 768px) {
    .page-banner {
        height: 500px;
        margin-top: 60px;
    }
    
    .banner-container {
        padding: 0 20px;
    }
    
    .banner-content h1 {
        font-size: 32px;
        margin-bottom: 15px;
    }
    
    .banner-content p {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .page-banner {
        height: 400px;
    }
}
/* 品牌理念部分 */
.brand-concept {
    padding: 80px 0;
    background: #f9f9f9;
}

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

.section-title h2 {
    font-size: 32px;
    color: #333;
    margin: 0;
}

.concept-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 100;
    margin: 0 auto;
    padding: 0 20px;
}

/* 理念卡片样式 */
.concept-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.concept-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

/* 卡片内容区 */
.card-content {
    position: relative;
    overflow: hidden;
}

.card-content img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.content-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0,0,0,0.2), rgba(0,0,0,0.2));
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
}

.content-overlay h3 {
    font-size: 36px;
    margin-bottom: 15px;
    margin-left: 20px;

}

.content-overlay p {
    font-size: 22px;
    line-height: 1.6;
    margin: 0 20px;
}

.view-more {
    display: inline-block;
    margin-top: 20px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 5px;
    color: #fff;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.view-more:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .concept-grid {
        grid-template-columns: 1fr;
    }
    .content-overlay {
        padding: unset;
        text-align: center;
    }
}
/* 时间轴整体部分 */
.timeline-section {
    padding: 80px 0;
    background: #fff;
}

.container {
    max-width: 80%;
    margin: 0 auto;
    padding: 0 15px;
}

.section-title {
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 36px;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.title-line {
    width: 40px;
    height: 3px;
    background: #00928c;
    margin: 0 auto;
}

/* 标签切换 */
.timeline-tabs {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
}

.timeline-tabs .tab {
    font-size: 20px;
    color: #666;
    cursor: pointer;
    padding: 10px 0;
    position: relative;
    transition: all 0.3s ease;
}

.timeline-tabs .tab.active {
    color: #00928c;
    font-weight: 500;
}

.timeline-tabs .tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: #00928c;
}

/* 时间轴容器 */
.timeline-years {
    position: relative;
    padding: 0 60px;
    overflow: hidden;
    height: 120px;
}

/* 时间轴线 */
.timeline-line {
    position: absolute;
    left: 60px;
    right: 60px;
    bottom: 40px; 
    height: 4px;
    background: #f0f0f0;
    z-index: 1;
}

/* Swiper容器 */
.years-swiper {
    position: relative;
    height: 100%;
    z-index: 2;
    overflow: hidden;
}

/* 年份滑块 */
.swiper-wrapper {
    display: flex;
    align-items: flex-start;
}

.swiper-slide {
    text-align: center;
    width: auto !important;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 年份项 */
.year-item {
    display: inline-block;
    font-size: 18px;
    color: #666;
    cursor: pointer;
    padding: 10px 0;
    position: relative;
    background: #fff;
    transition: all 0.3s ease;
    width: auto;
    min-width: 80px;
    margin-bottom: 40px;
}

.year-item::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -43px;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid #ddd;
    z-index: 2;
    transition: all 0.3s ease;
}

.year-item.active {
    color: #00928c;
    font-size: 22px;
    font-weight: 500;
}

.year-item.active::after {
    background: #00928c;
    border-color: #00928c;
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.2);
    bottom: -39px;
}

/* 导航按钮 */
.swiper-button-prev,
.swiper-button-next {
    width: 40px;
    height: 40px;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 50%;
    color: #666;
    transition: all 0.3s ease;
    top: auto;
    bottom: 21px; 
    margin-top: 0;
    z-index: 3;
}

.swiper-button-prev {
    left: 10px;
}

.swiper-button-next {
    right: 10px;
}

.swiper-button-prev:after,
.swiper-button-next:after {
    font-size: 16px;
}

.swiper-button-prev:hover,
.swiper-button-next:hover {
    background: #00928c;
    border-color: #00928c;
    color: #fff;
}

/* 内容区域 */
.timeline-content {
    max-width: 90%;
    margin: 0 auto;
}
.month-group {
    margin-bottom: 30px;
}
.month-title {
    font-size: 24px;
    color: #00928c;
    font-weight: 500;
    margin-bottom: 20px;
    padding-left: 20px;
    border-left: 4px solid #00928c;
}
.timeline-items {
    padding-left: 30px;
}
.timeline-item {
    position: relative;
    margin-bottom: 20px;
    padding: 20px 30px;
    background: #f8f9fa;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}
.timeline-item:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.timeline-item::before,
.honor-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 50%;
    width: 12px;
    height: 12px;
    background: #fff;
    border: 2px solid #00928c;
    border-radius: 50%;
    transform: translateY(-50%);
}
.timeline-item .content {
    color: #333;
    line-height: 1.6;
}
.year-content {
    display: none;
    max-width: 90%;
    margin: 0 auto;
    padding: 40px 0;
}

.year-content.active {
    display: flex; /* 仅在active时使用flex布局 */
    gap: 40px;
}

.year-header {
    flex: 0 0 30%;
}
.year-image {
    width: 400px;
    height: 400px;
    overflow: hidden;
}
.year-image img {
    height: 100%;
    /*width: 100%;*/
    object-fit: contain;
    transition: transform 0.3s ease;
}
.year-image:hover img {
    transform: scale(1.05);
}
.year-events, .year-honors {
    flex: 0 0 70%; /* 内容区域占60% */
}
/* 大事记样式 */
.timeline-item {
    margin-bottom: 20px;
    position: relative;
    padding-left: 100px;
}

.timeline-item .time {
    font-size: 18px;
    color: #00928c;
    font-weight: 500;
    position: absolute;
    left: 0;
    top: 0;
}

.timeline-item .content {
    color: #666;
    line-height: 1.6;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .timeline-years {
        padding: 0 40px;
    }
    
    .timeline-content {
        padding: 20px;
    }
    
    .timeline-content {
        padding: 0 40px;
    }
    
    .timeline-item {
        padding: 15px 20px;
        width: 100%;
    }
    
    .year-item {
        font-size: 16px;
        min-width: 60px;
    }
    .month-title {
        font-size: 20px;
    }


}

/* 荣誉样式 */
.honor-items {
    /* display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px; */
    padding: 0 20px;
}
.honor-item {
    position: relative;
    padding: 20px 30px;
    background: #f8f9fa;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    margin-bottom: 20px;
}
.honor-item:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.honor-text {
    flex: 1;
}

.honor-text p {
    color: #666;
    font-size: 14px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .year-image {
        height: 200px;
        width: unset;
    }
    .year-image img {
        width: 100%;
        height: 100%;
    }
    .timeline-items {
        padding-left: 0;
    }
    .year-content {
        padding: 20px;
        flex-direction: column;
    }
    .section-title h2 {
        font-size: 28px;
    }

    .timeline-years {
        padding: 0 40px;
    }
    
    .timeline-line {
        left: 40px;
        right: 40px;
    }
    
    .timeline-tabs {
        gap: 30px;
    }
    
    .timeline-tabs .tab {
        font-size: 18px;
    }
    
    .year-item {
        font-size: 16px;
        min-width: 60px;
    }
    
    .year-item.active {
        font-size: 20px;
    }
    .honor-items {
        grid-template-columns: 1fr;
    }
    .honor-item {
        padding: 15px 20px;
    }

}

@media (max-width: 480px) {
    .section-title h2 {
        font-size: 24px;
    }
    
    .timeline-tabs .tab {
        font-size: 16px;
    }
    
    .timeline-years {
        padding: 0 30px;
    }
    
    .timeline-line {
        left: 30px;
        right: 30px;
    }
    
    .year-item {
        min-width: 50px;
    }
}