/*about-company*/
.about-company{ padding: 60px 0;}
.about-company-left{ width: 50%; height: auto;}
.about-company-left img{ width: 100%; height:100%;}
.about-company-right{ width: 50%; height: auto; background: #f2f7fc; padding: 60px;}
.about-company-right h1{ font-size: 2rem; line-height: 40px;}
.about-company-right p{ margin-top: 25px;}


/*about-history*/
.about-history{ width: 100%; height: auto; color: #FFFFFF; background: url(../images/abhistory.jpg) no-repeat center; padding: 60px 0;}



.about-history-warp{}
/* ====== History Slider (左右滑动切换) ====== */
.about-history-list{
  width: 100%;
  position: relative;
  overflow: hidden;
  /* 高度由JS控制，避免抖动 */
  transition: height .28s ease;
}

/* JS会把所有 item 包在 track 里 */
.about-history-track{
  display: flex;
  width: 100%;
  transform: translate3d(0,0,0);
  transition: transform .45s ease;
  will-change: transform;
}

.about-history-item{
  width: 100%;
  flex: 0 0 100%;
}

/* 当前显示 */
.about-history-item.active{
    opacity: 1;
    pointer-events: auto;
    position: relative; /* 让第一个撑开高度 */
}
.about-history-item-left{ width: 62%; padding-right: 280px;}
.about-history-item-left h2{ color: #FFFFFF; font-size: 2rem; line-height: 50px; margin-bottom: 15px;}

.about-history-item-right{ width: 38%;}
.about-history-item-right img{ width: 100%; height: auto; border-radius:12px;}

.about-history-prev{ position: absolute; left: 0; top: -150px;}
.about-history-prev a{ display: inline-block; width: 40px;height: 40px; line-height: 40px; font-size: 1.2rem; margin-right: 20px; background: #FFFFFF;border-radius: 8px; text-align: center; }


.about-history-num{ width: 100%; border-top:4px solid #FFFFFF; margin-top: 60px; position: relative;}
/* 一屏只显示6个年份（超出隐藏） */
.about-history-num ul{
  width: 100%;
  display: flex;

}
.about-history-num ul li{
  width: calc(100% / 6);
  text-align: center;
  font-size: 2rem;
  cursor: pointer;
  line-height: 84px;
  user-select: none;
}
.about-history-num ul li.active{ font-weight: bold; font-size: 2.5rem; position:relative;}
.about-history-num ul li.active:before{ width: 100%; height: 8px; background: #6ddffd; content: ""; position: absolute; left: 0; top: -8px;}


/*Vision and Mission*/
.cap-vision{width: 100%; padding: 60px 0; background: #FFFFFF;}
.cap-vision h2{ font-size: 2rem; line-height: 52px; margin-bottom: 30px;}
.cap-vision-list{ margin-top: 30px; gap: 30px; grid-template-columns: repeat(2, 1fr); /* 3 列 */  display: grid;}

.cap-vision-item{ width: 100%; padding: 35px 30px; transition: all .3s ease; border-radius: 8px; cursor: pointer;}
.cap-vision-item b{ display: block; font-size: 1.8rem; line-height: 36px; margin: 25px 0;}
.cap-vision-item p{ line-height: 24px;}


.cap-vision-item:first-child{ background: url(../images/capsurdl1.png) no-repeat center; background-size:cover;}
.cap-vision-item:last-child{ background: url(../images/capsurdl2.png) no-repeat center; background-size:cover;}

.cap-vision-item:hover{transform: translateY(-3px); box-shadow: 0 12px 25px rgba(0,0,0,.18);}


/*Occupational Health and Safety Management System Framework*/
.about-occup{ width: 100%; background: #f2f7fc; padding: 65px 0;}
.about-occup h2{ font-size: 2rem; line-height: 52px; margin-bottom: 50px;}
.about-occup img{ max-width: 100%; height: auto;}

/*International Map*/
.about-map{ background: #0068bf; padding: 80px 0; width: 100%; color: #FFFFFF;}
.about-map-left{ width: calc(100% - 604px); padding-right: 150px;}
.about-map-info{ width: 100%;}
.about-map-left h2{ color: #FFFFFF; font-size: 2rem; line-height: 58px; margin-bottom: 10px;}
.about-map-left h3{ color: #6DDFFD; font-size: 2.2rem; line-height: 42px;}
.about-map-left h4{ color: #FFFFFF; font-size: 2.2rem; line-height: 42px;}
.about-map-left p{ margin-top: 35px;}

.about-map-left-num{ width: 100%; margin-top: 25px; gap: 20px; grid-template-columns: repeat(3, 1fr); /* 3 列 */  display: grid;}
.about-map-left-num dl{transition: all .3s ease; cursor: pointer; width: 100%; height: auto; min-height: 106px; background: url(../images/abmapdl.png) no-repeat center; background-size:100%; padding: 15px 25px;}
.about-map-left-num dl dt{ font-size: 1.5rem; font-weight: bold; line-height: 32px;}
.about-map-left-num dl dd{ line-height: 18px; color: #C3DBEC;}
.about-map-left-num dl:hover{transform: translateY(-3px); box-shadow: 0 12px 25px rgba(0,0,0,.18);}


.about-map-right{ width: 604px; height: auto;}
.about-map-right img{ width: 100%; height: auto;}


/*Honorary Certificate*/
.about-honor{ padding: 50px 0;}
.about-honor h2{ font-size: 2rem; line-height: 52px; margin-bottom: 20px;}

.about-honor-slider{
    position: relative;
    width: 100%;
    padding: 0 54px;
    box-sizing: border-box;
}

.about-honor-track{
    display: flex;
    gap: 24px;
    overflow: hidden;
    scroll-behavior: smooth;
}

.about-honor-item{
    flex: 0 0 calc((100% - 72px) / 4);
    margin: 0;
    transition: all .3s ease;
}

.about-honor-item dt{
    width: 100%;
    margin: 0;
    border: 1px solid #e5e5e5;
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 4px 14px rgba(0,0,0,0.05);
}

.about-honor-item dt a{
    display: block;
    width: 100%;
}

.about-honor-item dt img{
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: transform .35s ease;
}

.about-honor-item:hover{
    transform: translateY(-4px);
}

.about-honor-item:hover img{
    transform: scale(1.04);
}

.about-honor-arrow{
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    border: none;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 4px 14px rgba(0,0,0,0.12);
    cursor: pointer;
    z-index: 5;
    transition: all .25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #333;
}

.about-honor-arrow:hover{
    background: #0b63ce;
    color: #fff;
}

.about-honor-arrow.prev{
    left: 0;
}

.about-honor-arrow.next{
    right: 0;
}

.about-honor-arrow.disabled{
    opacity: .35;
    cursor: not-allowed;
    pointer-events: none;
}

/*Equipment Showcase*/
.about-equipment{padding: 50px 0;}
.about-equipment-left{ width: 45%;}
.about-equipment-left img{ width: 100%; height: auto;}
.about-equipment-right{ width: 55%; padding-left: 60px;}
.about-equipment-right h1{ font-size: 2rem; line-height: 40px; margin-bottom: 20px;}
.about-equipment-right h1 span{ color: #0068BF;}

.about-equipment-right-info{ width: 100%; background: #f2f7fc; margin-top: 20px; padding: 25px 30px;}
.about-equipment-right-info img{ width: 48px; display: block;}
.about-equipment-right-info b{ display: block; width: calc(100% - 48px); padding-right: 80px; font-size: 1.1rem; line-height: 24px;}

.about-equipment-right-list{ width: 100%; gap:18px; grid-template-columns: repeat(3, 1fr); /* 3 列 */  display: grid; margin-top: 25px;}
.about-equipment-right-list a{ display: block; width: 100%; height: auto; overflow: hidden;}
.about-equipment-right-list a img{ width: 100%; height: auto; border-radius:8px;}
.about-equipment-right-list a:hover img{ transform: scale(1.06);}

.about-piclist{ width: 100%; background: #f2f7fc; padding: 60px 0;}
.about-piclist-box{gap:10px 35px; grid-template-columns: repeat(3, 1fr); /* 3 列 */  display: grid;}
.about-piclist-box dl{ width: 100%; text-align: center;}
.about-piclist-box dl dt{ width: 100%; height: auto; overflow: hidden; border-radius:8px;}
.about-piclist-box dl dt img{ width: 100%; height: auto; border-radius:8px;}
.about-piclist-box dl dt a:hover img{ transform: scale(1.06);}
.about-piclist-box dl dd{ line-height: 26px; padding: 20px 0; font-size: 1.1rem; font-weight: bold;}


/* 移动端文字与按钮适配 */
@media (max-width: 1380px){
 
/*about-company*/
.about-company{ padding: 30px 0;}
.about-company-left{ width: 100%; height: auto;}
.about-company-right{ width: 100%;  padding: 30px;}
.about-company-right h1{ font-size: 1.4rem; line-height: 32px;}
.about-company-right p{ margin-top: 15px;}


/*about-history*/
.about-history{
    padding: 40px 0;
    background-size: cover;
    background-position: center;
  }

  .about-history-warp{
    padding: 0 12px; /* 容器没padding的话加一点更舒服 */
  }

  /* item 从左右改上下 */
  .about-history-item{
    flex-wrap: wrap;
    gap: 16px;
  }

  .about-history-item-left,
  .about-history-item-right{
    width: 100%;
  }

  .about-history-item-left{
    padding-right: 0; /* 关键：去掉280px */
  }

  .about-history-item-left h2{
    font-size: 1.5rem;
    line-height: 36px;
    margin-bottom: 10px;
  }

  .about-history-item-left p{
    font-size: 1rem;
    line-height: 24px;
    opacity: .95;
  }

  .about-history-item-right img{
    border-radius: 12px;
  }

  /* 底部时间轴 */
  .about-history-num{
    margin-top: 28px;
    border-top: 3px solid #FFFFFF;
  }

  /* 手机建议一屏3个（更清晰更好点） */
  .about-history-num ul li{
    width: calc(100% / 3);
    font-size: 1.25rem;
    line-height: 62px;
  }

  .about-history-num ul li.active{
    font-size: 1.55rem;
  }

  .about-history-num ul li.active:before{
    height: 6px;
    top: -6px;
  }

  /* 左右箭头按钮位置 */
  .about-history-prev{
    top: -62px;
    left: 0;
    display: flex;
    gap: 10px;
  }

  .about-history-prev a{
    width: 38px;
    height: 38px;
    line-height: 38px;
    font-size: 1.05rem;
    margin-right: 0;
    border-radius: 10px;
  }
    
    
    
  /*Vision and Mission*/
.cap-vision{ padding: 30px 0;}
.cap-vision h2{ font-size:1.4rem; line-height: 32px; margin-bottom: 10px;}
.cap-vision-list{ margin-top:15px; gap: 10px; grid-template-columns: repeat(1, 1fr); /* 3 列 */  display: grid;}

.cap-vision-item{ width: 100%; padding: 20px; }
.cap-vision-item b{  font-size: 1.2rem; line-height: 30px; margin: 15px 0;}


/*Occupational Health and Safety Management System Framework*/
.about-occup{ padding: 30px 0;}
.about-occup h2{ font-size: 1.4rem; line-height: 32px; margin-bottom: 20px;}  
    
    
 /*International Map*/
.about-map{ padding: 30px 0; }
.about-map-left{ width: 100%; padding-right: 0;}
.about-map-left h2{  font-size: 1.4rem; line-height:38px; margin-bottom: 0;}
.about-map-left h3{ font-size: 1.2rem; line-height: 32px;}
.about-map-left h4{ font-size: 1.2rem; line-height: 32px;}
.about-map-left p{ margin-top: 20px;}

.about-map-left-num{ width: 100%; margin-top: 15px; gap: 10px; grid-template-columns: repeat(1, 1fr); /* 3 列 */  display: grid;}
.about-map-left-num dl{ min-height: auto; background:#37bbfb; padding: 25px; border-radius:6px ;}
.about-map-left-num dl dt{ font-size: 1.6rem;  line-height: 32px;}
.about-map-left-num dl dd{ line-height: 22px; color: #FFFFFF;}


.about-map-right{ width: 100%; margin-top: 25px;}


  /*Honorary Certificate*/
.about-honor{ padding: 30px 0;}
.about-honor h2{ font-size: 1.4rem; line-height: 32px; margin-bottom: 20px;}

 .about-honor-slider{
        padding: 0 40px;
    }

    .about-honor-track{
        gap: 16px;
    }

    .about-honor-item{
        flex: 0 0 calc((100% - 16px) / 2);
    }

    .about-honor-item dt img{
        height: auto;
    }

    .about-honor-arrow{
        width: 34px;
        height: 34px;
        font-size: 18px;
    }

/*Equipment Showcase*/
.about-equipment{padding: 30px 0;}
.about-equipment-left{ width: 100%;}
.about-equipment-right{ width: 100%; padding-left: 0; margin-top: 25px;}
.about-equipment-right h1{ font-size: 1.4rem; line-height: 30px; margin-bottom: 10px;}


.about-equipment-right-info{  margin-top: 10px; padding: 20px;}
.about-equipment-right-info b{  font-size: 0.9rem; line-height: 24px;}

.about-equipment-right-list{ width: 100%; gap:10px;  margin-top:15px;}

 .about-piclist{  padding: 30px 0;}
.about-piclist-box{gap:10px; grid-template-columns: repeat(1, 1fr); /* 3 列 */  display: grid;}

    
    
}