@charset "UTF-8";
/* 赛天集团 - 响应式页面样式 */
:root {
  --red: #c41e3a;
  --red-dark: #a01830;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e8e8e8;
  --gray-300: #999;
  --gray-800: #333;
  --black: #1a1a1a;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container: min(900px, 100% - 4rem);
  --bm-top-w: max(1000px, 100% - 32rem);
  --header-h: 64rem;
  --header-w: max(750px, 100% - 4rem);
}
/* 基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  font-family: var(--font);
  line-height: 1.6;
  color: #333;
  font-size: 10px;overflow-x: hidden;
  background-color: #fff;
}

/* 导航栏 */
/* 头部横幅 */
.hero {
  height: 100vh;width: 100vw;
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.hero img,
.hero picture
{width: 100%;height: 100%;object-fit: cover;display: block;}

/* .hero-pc{width: 100%;height: 100%;object-fit: cover;display: block;} */
/* .hero-mobile{height: 100%;width: 100%;object-fit: cover;display: none;} */



/* .hero::before {
  content: '';
  position: absolute;
  background: rgba(0, 0, 0, 0.3);
} */

/* .hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-title {
  font-size: 12rem;
  font-weight: 300;
  color: #fff;
  letter-spacing: 0.2rem;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.hero-title span {
  font-size: 20rem;
  font-weight: bold;
} */

/* 公司介绍 */
.about {
  width: 100vw;
  height: auto;
  padding: 10rem 0;
  background-color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.space-left,
.space-right {
  flex: 1;
  min-width: 3rem;
  max-width: 16rem;
}

.about-content {
  display: flex;
  align-items: stretch;align-items: flex-start;
  flex: 0 1 auto;
  gap: 15rem;padding:0rem 0;
  max-width: 160rem;
  height: 100%;
}

.about-image {
  flex: 1;position: relative;overflow: hidden;  min-width: 43.7rem;
  display: flex;align-items: center;justify-content: flex-start;
height: auto;
    aspect-ratio: 552 / 776;
    width: 100%;
      
}

.about-image img {object-position: center;object-fit: cover;width: 100%;height: auto;aspect-ratio: 552 / 776;}

.about-text {
  flex: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;  
}

.about-title {
  font-size: 5rem;
  font-weight: bold;
  line-height: 1;
  padding: 5rem 0;
  /* margin-bottom: 3rem; */
  color: #333;
}

.about-description {
  font-size: 2.4rem;
  line-height: 1.6;
  color: #828282;
  text-align: justify;
  text-overflow: ellipsis;
  display: -webkit-box;  
  -webkit-box-orient: vertical;
}

.about-divider {
  width: 9.7rem;
  height: 0.7rem;
  background-color: #050505;
  /* margin: 3rem 0; */
}

.about-number {
  position: absolute;
  bottom: 0;
  right: 4rem;
  font-size: 12rem;
  font-weight: bold;
  color: rgba(255, 255, 255, 0.9);
  opacity: 0.8;
}

.about-title span {
  color: #aaaaaa;font-weight: 300;
}



.about-description2 {
  font-size: 2rem;
  line-height: 1.8;
  color: #666;
  /* margin-bottom: 3rem; */
  text-align: justify;
}
.about-description2 p{
  margin-top: 1rem;
}


.about-divider2 {
  width: 9.7rem;
  height: 0.2rem;  
  background-color: #cfcfcf;
}

/* 时间轴 */
.timeline {    
  position: relative;  
  display: flex;
  justify-content: center;
}

.timeline .space-left,
.timeline .space-right {
  flex: 1;
  min-width: 3rem;
  max-width: 16rem;
}

.timeline .container {
  position: relative;
  z-index: 1;display: flex;
  background-image: url('../imgs/corporate/time_bg.jpg');
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  padding: 10rem 0;
  justify-content: space-between;  
  width: 100%;
}

.timeline-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6rem;
  max-width: 160rem;  width: 100%;
  padding: 4rem 0;  
  height: auto;
}

.timeline-left {
  display: flex;
  flex-direction: column;
  gap: 10rem;
  align-items: flex-start;
  flex: 2;
  min-width: 0;
  max-width: 88rem;
}

.timeline-left-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 880px;
}

.timeline-left-top-title {
  font-size: 10rem;
  line-height: 1.2;
  color: #c9c9c9;
  text-align: left;
}

.timeline-date {
  display: none;
  margin: 0;
  font-weight: 300;
}

.timeline-date.active {
  display: block;
}

.timeline-nav {
  display: flex;
  gap: 2rem;
}

/* .timeline-nav button {
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  border: none;
  background-color: #fff;
  color: #626363;
  font-size: 2.4rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-nav button:hover {
  background-color: #d61419;
  color: #fff;
} */
/* 
.timeline-nav button.active {
  background-color: #d61419;
  color: #fff;
} */

.timeline-left-bottom {
  max-width: 87rem;
  width: 100%;min-height: 20rem;
}

.timeline-lb-title {
  display: none;
  color: #fff;
  font-size: 2.4rem;
  line-height: 1.5;
  text-align: justify;
  list-style: none;
  margin: 0;
}

.timeline-lb-title.active {
  display: block;
}

.timeline-right {
  flex: 1;
  max-width: 56rem;
  height: auto;
}

.timeline-right-img {
  overflow: hidden;
  width: 100%;
  height: auto;
  position: relative;
  min-width: 43.7rem;aspect-ratio: 560/472;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex: 1;
}

.timeline-pcUrl{
  /* 2026-04-29 */
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;  
  /* 2026-04-29 */
  width: 100%;
  height: auto;
  object-fit: cover;
}
.timeline-pcUrl.active{
  opacity: 1;
}


/* 全球布局 */
.global {
  /* padding: 10rem 0; */
  background-color: #ffffff;
  display: flex;
  justify-content: center;
  /* min-height: 100vh; */
  background-size: cover;background-repeat: no-repeat;
  background-position: center;

}
.global picture,
.global picture img {
  width: 100%;
  height: auto;display: block;
}
.global picture{
  max-width: 160rem;
}
.footer .container{
  max-width: 160rem; margin: 0 auto;
}
/* 底部区域 */
/* 底部联系信息 */
@media (max-width: 1600px) {
  .timeline-title {
    height: 51rem;
  }

  .timeline-description {
    position: relative;
    top: -20rem;
  }
}
@media (max-width: 1200px) {
  .global{padding: 0 3rem;}
  .about-content{gap: 6rem;}
  .about-description {font-size: 2rem;}
}

/* 响应式布局 */
@media (max-width: 1024px) {
  /* 时间轴 */

  /* 时间轴标题 */
  .timeline-date{font-weight: 400;text-align: left;}
  .timeline-left{
    width: calc(100vw - 6rem);
  }
  .timeline-left-bottom{
    max-width: 87rem;
    width: 100%;
    min-height: 17rem;padding-top: 1rem;
  }
  .timeline .container{
      background-image: url(../imgs/corporate/time_bg-ms.jpg);
        background-repeat: repeat-x;
        background-size: 57% 123%;
        min-height: 97rem;
        align-items: flex-start;
        background-position-y: -7rem;

  }
  .timeline-content {flex-direction: column;}    
  .timeline-events {flex-direction: column;}    
  
  .timeline-lb-title {font-size: 2rem;text-align: left;}    
  .timeline-left-top{flex-direction: row;padding-top: 1rem;}
  .timeline-left-top-title {font-size: 6rem;
    text-align: left;flex: 0 0 26rem;min-height: 11rem;
  }
  .timeline-right{margin-top: -6rem;}
/* 关于我们 */
  .about-content {
    flex-direction: column;
    text-align: center;
  }
  .about-text { padding: 7rem 4rem;}
  .about-image {padding: 0rem 4rem;}
  .about-title{text-align: left;}
  .about-divider{margin: 3rem 0;}
  .about-description{text-align: left;}
  .about-image {padding: 0rem 4rem;aspect-ratio: 585 / 445;}

  .global{padding: 0;}
}


@media (max-width: 768px) {

  .nav-links {display: none;}

  .hero{height: auto;padding-top: 7rem;}
  .hero img{width: 100%;height: auto;}
    
  
  .about-content{gap: 3rem;}
  /* 关于我们标题 */
  .about{padding:7rem 0;}
  .space-left, .space-right {min-width: 0;}
  .about-title {font-size: 4rem;font-weight: bolder;}        
  .about-divider{margin: 5rem 0;}
  .about-text {padding: 0rem 4rem 4rem;}
  .about-description {font-size: 2rem;line-height: 1.8;
    text-align: justify;
  }   
  
  
  .about-description2 {font-size: 1.5rem;}
  
  /* 时间轴标题 */
  .timeline-date{font-weight: 400;text-align: left;}
  .timeline-left{
    width: calc(100vw - 6rem);
  }
  .timeline-left-bottom{
    max-width: 87rem;
    width: 100%;
    min-height: 17rem;padding-top: 1rem;
  }
  .timeline .container{
      background-image: url(../imgs/corporate/time_bg-ms.jpg);
        background-repeat: repeat-x;
        background-size: 57% 101%;
        min-height: 97rem;
        align-items: flex-start;
        padding: 2rem 0;
        background-position-y: -7rem;

  }
  .timeline-left{gap: 6rem;}
  .timeline-content {flex-direction: column;}    
  .timeline-events {flex-direction: column;}    
  
  .timeline-lb-title {font-size: 2rem;text-align: left;}    
  .timeline-left-top{flex-direction: row;padding-top: 1rem;}
  .timeline-left-top-title {font-size: 6rem;
    text-align: left;flex: 0 0 26rem;min-height: 11rem;
  }
  .timeline-right{margin-top: -6rem;}

  .global {
    display: block;margin-top: -6.5rem;
  }
  .global picture{padding: 0;display: block;}
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.8rem;
  }

  .container {
    padding: 0 1.5rem;
  }

  
}

/*# sourceMappingURL=corporate.css.map */