/* ===== 关于我们全局基础样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box; /* 让padding和border不增加元素实际宽度 */
}

.container {
    max-width: 1920px; /* 最大宽度限制 */
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
}



/* ===== 主图区域样式 ===== */
.mastermap {
    background-color: #f5f5f5;
    height: 64.81vh; /* 视口高度的60% */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background-repeat: no-repeat;
    background-size: 100% 100%; /* 背景图拉伸填充 */
    position: relative;
}

.mastermaptitle {
    color: #ffffff;
    position: absolute;
    left: 12%;
    bottom: 26.4%;
    z-index: 2;
}

.mastermaptitle p {
    margin: 0;
    font-size: 3rem;
    padding: 0;
}

.mastermaptitle span {
    margin: 0 0 0 15%;
    padding: 0;
    font-size: 1rem;
    font-style: italic; /* 斜体 */
    opacity: 0.8;
}
.title-icon{
position: relative;
    top: -18px;
    left: 28px;
}

/* ===== 二级菜单样式 ===== */
.sub-menu {
    width: 100%;
    background: rgba(0, 0, 0, 0.15); /* 半透明黑色背景 */
    backdrop-filter: blur(10px); /* 背景模糊效果 */
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    justify-content: left;
    z-index: 10;
    position: absolute;
    bottom: 0;
    left: 0;
}

.sub-menu ul {
   width: 41.26%;
    display: flex;
    list-style: none;
    padding: 0;
    justify-content: space-between;
    margin: 1% 0 1% 8.33%;
}

.sub-menu li {
    width: 20%;
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 16px;
    color: #ffffff;
    cursor: pointer;
    box-sizing: border-box;
    text-align: center;
    flex: 1;
    position: relative;
    transition: all 0.3s ease; /* 所有属性变化都有过渡动画 */
}
.sub-menu li a{
    color: white;
}

/* 二级菜单交互效果 */
.sub-menu li:not(:nth-child(2)) {
    border-left: 1px solid rgba(255, 255, 255, 0.3);
    border-right: 1px solid rgba(255, 255, 255, 0.3);
}

.sub-menu li:first-child {
    border-left: none;
}

.sub-menu li:last-child {
    border-right: none;
}

.sub-menu li.active a,
.sub-menu li:hover a {
    color: #378DFF; /* 悬停和激活时的蓝色 */
}

.sub-menu li:hover {
    text-decoration: none;
}

/* ===== 公司简介区域样式 ===== */
.company-profile {
    overflow: hidden; /* 清除浮动 */
    zoom: 1; /* IE兼容 */
    display: flex;
    height: 972px;
}

.left-section {
    width: 60%;
    margin-right: auto;
    flex-direction: column;
    gap: 20px;
}

.right-section {
    width: 31.4%;
    float: right;
    flex-direction: column;
    gap: 20px;
}

.right-section img {
    width: 100%;
    height: auto;
    display: block; /* 防止inline元素间隙 */
}

    .top {
            margin-left: 22.6%;
            margin-top: 120px;
            margin-bottom: 100px;
        }

.section-title {
    font-size: 2.5rem; /* 40px */
}

.section-subtitle {
    font-size: 1rem; /* 16px */
    color: #378DFF;
    font-style: oblique; /* 斜体 */
    margin-bottom: 34px;
}

.bottom {
  color: #fff;
    border-radius: 0px 6px 6px 0px;
    height: 377px;
    display: flex;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
}

/* 卡片样式 */
.card {  
    text-align: center;
    width: 50%;
    align-content: center;
}

.card .card-title {
    display: flex;
    justify-content: center;
}

.card-title_year {
    font-size: 3.125rem; /* 50px */
}

.card-title_unit {
    font-size: 1rem;
    margin-top: 2%;
}

.card .card-desc {
    font-size: 1rem;
    color: #fff;
    opacity: 0.8;
}

/* ===== 企业文化区域样式 ===== */
.corporate-culture {
    width: 100%;
    height: 989px;
    margin-bottom: 100px;
}
     .corporate-title{
           width: 100%;
           align-items: center;
           justify-content: center;
    margin-top: 120px;
           }

.culture-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 7px;
}

.culture-subtitle {
    font-size: 1rem;
    color: #378DFF;
    font-style: oblique;
    margin-bottom: 60px;
    text-align: center;
}
   .corporate-content{
            width: 70%;
            margin: 0 auto;
            padding-bottom: 60px;
        }

/* 图片文字叠加效果 */
.overlay-image-container {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.text-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 10% 8% 5% 8%;
    box-sizing: border-box;
    justify-content: flex-end;
}

.text-overlay p {
    font-size: 1.25rem; /* 20px */
    color: white;
    font-weight: bold;
    line-height: 1.2;
    margin: 0 0 12px 0;
    width: 100%;
}

.text-overlay span {
    font-size: 0.875rem; /* 14px */
    line-height: 1.4;
    margin: 0;
    color: white;
    display: -webkit-box;
    -webkit-line-clamp: 3; /* 最多显示3行 */
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
    min-height: 3.15em; /* 3行文字的高度 */
}

/* ===== 荣誉资质区域样式 ===== */
.honors {
    width: 100%;
    height:770px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
    background-size: 100% 900px;    
background-repeat: no-repeat;
}

.honor-section {
    width: 72.86%;
    margin: 0 auto;
    padding: 0;
}

.honor-section::after {
    content: "";
    display: table;
    clear: both;
}

  .section-header {
    text-align: left;
    margin-bottom: 10px;
    margin-top: 120px;
}

.section-headertitle {
    font-size: 2.5rem;
}

.section-headertitles {
    color: #378DFF;
    font-style: oblique;
    font-size: 1rem;
}

/* 选项卡样式 */
.tabs {
    display: flex;
    gap: 60px;
    margin-bottom: 20px;
    width: 30%;
    float: right;
    margin-top: -60px;
    justify-content: center;
margin-left: auto;
}

.tabs .tab {
    background: none;
    border: none;
    font-weight: bold;
    cursor: pointer;
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
}

.tabs .tab.active {
    border-color: #2a61e1;
    color: #2a61e1;
}

.content {
    width: 70%;
    display: flex;
    justify-content: space-between;
}

/* 证书/奖杯显示控制 */
.certificates,
.trophies {
    flex: 1;
    display: none;
}

.certificates.active,
.trophies.active {
    display: block;
}

.caption {
    text-align: center;
    margin-top: 10px;
    font-weight: bold;
}

/* 轮播组件样式 */
.cert-carousel {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 20px;
    cursor: pointer;
    z-index: 10;
    transition: background 0.3s;
    display: none;
}


.prev-btn {
    left: 10px;
}

.next-btn {
    right: 10px;
}

.carousel-btn:hover {
    background: rgba(0, 0, 0, 0.8);
}

.cert-grid {
    display: flex;
    gap: 20px;
    transition: transform 0.5s ease;
    align-items: center;
}

/* 证书图片样式 */
.cert-image {
    max-width: 100%;
    max-height: 265px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    /*box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);*/
    transition: all 0.3s ease;
    opacity: 0.8;
}

.cert-image.active {
    transform: scale(1.05);
   /* box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);*/
    opacity: 1;
    filter: brightness(1);
    z-index: 1;
}

/* 右侧列表样式 */
.right-list {
    width: 29%;
    float: right;
    top: -17rem;
    position: relative;
    padding-left: 20px;
    border-left: 1px solid #eee;
    text-align: center;
}

.right-list ul {
    list-style: none;
    padding: 0;
}

.right-list li {
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #333;
    font-size: 1.1rem;
    font-weight: bold;
    width: 80%;
    margin:2% auto;

}

.right-list li.active {

}

.right-list .highlight {
    background: white;
    padding: 5px 10px;
    border-radius: 40px 4px;
    font-weight: bold;
box-shadow: 0px 4px 20px 0px rgba(21, 58, 118, 0.1);
}



.column p{
    margin-bottom: 14% !important;
}