/* 公司简介页面专用样式 */

/* ============================================
   发展历程栏目样式 - 跟随山峰逐渐升高效果
   参考：https://www.progress.red/p/about.html#about_company
   ============================================ */
.about-history {
    margin-bottom: 0;
    padding: 0;
}

/* 全屏宽背景容器 */
#about_history.page_about_history {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    padding: 100px 0 0;
    background-color: #fcfcfc;
    background-image: url('../images/lichen.jpg');
    background-size: cover;
    background-position: center bottom;
    background-repeat: no-repeat;
    overflow: hidden;
    min-height: 900px;
}

/* 强制移除所有可能的橙色装饰元素 */
#about_history *::before,
#about_history *::after {
    background-image: none !important;
    border-color: transparent !important;
}

/* 仅保留蓝色线条的 before 伪元素 */
#about_history .timeline-item::before {
    background: linear-gradient(to bottom, #0057FF, rgba(0, 87, 255, 0.3) 70%, transparent) !important;
    border: none !important;
}

/* 浅背景渐变叠加 - 突出背景图中的地图和山脉 */
#about_history.page_about_history::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, 
        rgba(255, 255, 255, 0.95) 0%, 
        rgba(255, 255, 255, 0.7) 20%,
        rgba(255, 255, 255, 0.2) 50%,
        transparent 100%);
    z-index: 1;
}

/* 内容容器 */
.dth_wh {
    position: relative;
    z-index: 3;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 标题 */
.about_tit {
    margin-bottom: 60px;
    position: relative;
    z-index: 10;
}

.about_tit h3 {
    color: #333;
    font-size: 3.5rem;
    font-weight: 800;
    text-align: left;
    margin: 0;
    font-family: var(--heading-font, 'Noto Sans SC', sans-serif);
    letter-spacing: 1px;
}

/* 强制移除标题下方的所有装饰线条 */
.about_tit::before,
.about_tit::after,
.about_tit h3::before,
.about_tit h3::after {
    display: none !important;
    content: none !important;
}

/* 移除所有可能的橙色装饰线条 */
.about-history .section-heading::after,
.about-history .subsection-heading::after,
.about-history .about_tit::after,
.about-history .decoration-line,
#about_history .section-heading::after,
#about_history .subsection-heading::after,
#about_history h2::after,
#about_history h3::after {
    display: none !important;
    content: none !important;
    background: none !important;
    border: none !important;
}

/* 时间轴容器 */
.about_history_uls {
    width: 100%;
    position: relative;
    margin-top: 20px;
}

/* 移除任何可能的伪元素线条 */
.about_history_uls::before,
.about_history_uls::after {
    display: none !important;
}

/* 时间轴主容器 */
.history-timeline {
    position: relative;
    width: calc(100% + 40px); /* 增加宽度补偿负margin */
    height: 550px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding: 0 2% 100px 0;
    margin-left: -40px; /* 向左移动40px，让整体对齐容器左边缘 */
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    gap: 4%;
}

/* 强制移除所有线条和装饰 */
.history-timeline::before,
.history-timeline::after {
    display: none !important;
    content: none !important;
    background: none !important;
}

/* 单个时间轴项目 */
.timeline-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    z-index: 2;
    transition: all 0.4s ease;
    width: auto;
    min-width: 150px; /* 再减小一点宽度 */
    flex-shrink: 0;
}

/* 2012年 - 靠近左下角，起步高度调高一点使坡度平缓 */
.timeline-item.year-2012 {
    height: 80px;
}

/* 2016年 */
.timeline-item.year-2016 {
    height: 140px;
}

/* 2019年 */
.timeline-item.year-2019 {
    height: 200px;
}

/* 2021年 */
.timeline-item.year-2021 {
    height: 260px;
}

/* 2022年 */
.timeline-item.year-2022 {
    height: 320px;
}

/* 2023~至今 - 终点高度调低，使整体跨度从 80 到 380，坡度更平滑 */
.timeline-item.year-2023 {
    height: 380px;
    margin-right: 0; /* 移除额外的右边距，确保可见 */
}

/* 时间轴线条：从点向下延伸 */
.timeline-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 7px;
    width: 2px;
    height: 120px;
    background: linear-gradient(to bottom, #0057FF, rgba(0, 87, 255, 0.3) 70%, transparent);
    z-index: 1;
}

/* 时间点圆点 - 带有发光效果 */
.timeline-dot {
    width: 16px;
    height: 16px;
    background: #0057FF;
    border-radius: 50%;
    transition: all 0.3s ease;
    cursor: pointer;
    z-index: 3;
    box-shadow: 0 0 15px rgba(0, 87, 255, 0.6); /* 增加发光感 */
    position: absolute;
    top: -8px;
    left: 0px;
    margin: 0;
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.3);
    box-shadow: 0 0 25px rgba(0, 87, 255, 0.9);
}

/* 时间点内容 */
.timeline-content {
    text-align: left;
    transition: all 0.3s ease;
    margin-left: 0; /* 从圆点位置开始 */
    margin-top: -20px;
    width: auto;
    position: relative;
}

.timeline-content h4 {
    font-size: 2.8rem;
    font-weight: 800;
    color: #333;
    margin: 0 0 10px 25px; /* 向右偏移25px，避开圆点 */
    line-height: 1;
    font-family: var(--heading-font, 'Noto Sans SC', sans-serif);
    position: relative;
    left: 0;
}

.timeline-content h4 span {
    font-weight: 400;
    margin-left: 5px;
    font-size: 1.4rem;
}

/* 事件描述 */
.timeline-content .sums {
    color: #444;
    font-size: 0.95rem;
    line-height: 1.7;
    text-align: left;
    font-family: var(--body-font, 'Noto Sans SC', sans-serif);
    margin: 0 0 0 25px; /* 与年份对齐 */
    padding: 0;
    white-space: normal; /* 允许换行，避免英文内容太宽 */
    max-width: 200px; /* 限制最大宽度，确保不会遮挡其他年份 */
}

.timeline-content .sums br {
    display: block;
    margin: 5px 0;
}

.timeline-item:hover .sums {
    transform: none;
    box-shadow: none;
}

/* 响应式设计 */
@media (max-width: 1400px) {
    .dth_wh {
        padding: 0 40px;
    }
    
    .timeline-content {
        max-width: 140px;
    }
    
    .timeline-content h4 {
        font-size: 1.6rem;
    }
    
    .timeline-content .sums {
        font-size: 0.9rem;
    }
}

@media (max-width: 1200px) {
    #about_history.page_about_history {
        padding: 80px 0 100px;
    }
    
    .dth_wh {
        padding: 0 25px;
    }
    
    .about_tit h3 {
        font-size: 2.2rem;
        margin-bottom: 80px;
    }
    
    .history-timeline {
        height: 450px;
        padding: 0 3%;
    }
    
    .timeline-item.year-2012 {
        height: 100px;
    }
    
    .timeline-item.year-2016 {
        height: 160px;
    }
    
    .timeline-item.year-2019 {
        height: 220px;
    }
    
    .timeline-item.year-2021 {
        height: 280px;
    }
    
    .timeline-item.year-2022 {
        height: 340px;
    }
    
    .timeline-item.year-2023 {
        height: 420px;
    }
    
    .timeline-content {
        max-width: 120px;
    }
    
    .timeline-content h4 {
        font-size: 1.4rem;
    }
    
    .timeline-content .sums {
        font-size: 0.85rem;
    }
}

@media (max-width: 992px) {
    #about_history.page_about_history {
        padding: 80px 0 100px;
        background-attachment: scroll;
    }
    
    .about_tit h3 {
        font-size: 2rem;
        margin-bottom: 60px;
    }
    
    .history-timeline {
        height: auto;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 40px;
        padding: 0 2%;
    }
    
    /* 垂直排列 */
    .timeline-item {
        position: relative;
        left: 0 !important;
        bottom: 0 !important;
        margin-bottom: 0;
        width: 100%;
        max-width: 100%;
        height: auto !important;
        padding: 0 0 0 60px;
        background: rgba(255, 255, 255, 0.85);
        border-radius: 12px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }
    
    /* 重新设计垂直时间轴的线 */
    .timeline-item::before {
        left: 30px;
        bottom: auto;
        top: 0;
        height: 100%;
    }
    
    /* 重新设计时间点 */
    .timeline-dot {
        position: absolute;
        left: 23px;
        top: 20px;
        margin-right: 0;
    }
    
    /* 内容样式 */
    .timeline-content {
        margin-left: 0;
        max-width: 100%;
        padding: 25px 30px 25px 0;
    }
    
    .timeline-content h4 {
        margin-bottom: 15px;
    }
    
    .timeline-content .sums {
        background: transparent;
        box-shadow: none;
        text-shadow: none;
    }
}

@media (max-width: 768px) {
    #about_history.page_about_history {
        padding: 60px 0 80px;
    }
    
    .dth_wh {
        padding: 0 25px;
    }
    
    .about_tit h3 {
        font-size: 1.8rem;
        margin-bottom: 50px;
    }
    
    .timeline-item {
        padding-left: 50px;
    }
    
    .timeline-dot {
        left: 18px;
        top: 18px;
    }
    
    .timeline-content {
        padding: 20px 25px 20px 0;
    }
    
    .timeline-content h4 {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }
    
    .timeline-content .sums {
        font-size: 0.9rem;
        line-height: 1.7;
    }
}

@media (max-width: 576px) {
    #about_history.page_about_history {
        padding: 50px 0 70px;
    }
    
    .dth_wh {
        padding: 0 20px;
    }
    
    .about_tit h3 {
        font-size: 1.6rem;
        margin-bottom: 40px;
    }
    
    .timeline-item {
        padding-left: 40px;
    }
    
    .timeline-dot {
        left: 13px;
        top: 15px;
    }
    
    .timeline-content {
        padding: 15px 20px 15px 0;
    }
    
    .timeline-content h4 {
        font-size: 1.2rem;
    }
    
    .timeline-content .sums {
        font-size: 0.85rem;
    }
}

/* ============================================
   品质交期服务栏目样式 - 参考progress.red设计
   ============================================ */
.about-commitment {
    position: relative;
    margin-bottom: 100px;
    padding: 0;
    overflow: hidden;
}

/* 主容器 - 左右分栏布局 */
.commitment-wrapper {
    display: flex;
    width: 100%;
    min-height: 600px;
}

/* 左侧：品质详细描述 - 深蓝色背景 */
.commitment-quality {
    flex: 0 0 40%;
    background: #1F4E79;
    padding: 80px 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
    position: relative;
    z-index: 2;
}

.commitment-quality-icon {
    width: 100px;
    height: 100px;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.commitment-quality-icon svg {
    width: 80px;
    height: 80px;
    stroke: #fff;
    fill: none;
    stroke-width: 1.5;
}

.commitment-quality-title {
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    margin: 0 0 35px 0;
    line-height: 1.2;
    text-align: center;
    font-family: var(--heading-font, 'Noto Sans SC', sans-serif);
}

.commitment-quality-description {
    font-size: 1.05rem;
    line-height: 2;
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    text-align: left;
    font-family: var(--body-font, 'Noto Sans SC', sans-serif);
}

/* 右侧：交期和服务 - 模糊背景图片 */
.commitment-right {
    flex: 1;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 80px 60px;
    min-height: 600px;
}

/* 背景图片模糊效果 */
.commitment-right::before {
    content: '';
    position: absolute;
    top: -10%;
    left: -10%;
    right: -10%;
    bottom: -10%;
    width: 120%;
    height: 120%;
    background-image: url('../images/jiaoqi.jpg');
    background-size: cover;
    background-position: center;
    filter: blur(20px) brightness(0.5);
    z-index: 1;
}

/* 深色半透明蒙版 */
.commitment-right::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    z-index: 2;
}

/* 右侧项目容器 */
.commitment-right-item {
    position: relative;
    z-index: 3;
    text-align: center;
    color: #fff;
    margin-bottom: 80px;
    transition: all 0.3s ease;
}

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

.commitment-right-item:hover {
    transform: translateY(-5px);
}

.commitment-right-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.commitment-right-icon svg {
    width: 70px;
    height: 70px;
    stroke: #fff;
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.commitment-right-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 20px 0;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    font-family: var(--heading-font, 'Noto Sans SC', sans-serif);
}

/* 蓝色发光点 */
.commitment-right-dot {
    width: 10px;
    height: 10px;
    background: rgba(0, 128, 255, 0.9);
    border-radius: 50%;
    margin: 0 auto;
    box-shadow: 0 0 20px rgba(0, 128, 255, 0.8), 0 0 40px rgba(0, 128, 255, 0.4);
    transition: all 0.3s ease;
}

.commitment-right-item:hover .commitment-right-dot {
    transform: scale(1.4);
    box-shadow: 0 0 30px rgba(0, 128, 255, 1), 0 0 60px rgba(0, 128, 255, 0.6);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .commitment-quality {
        padding: 60px 50px;
        flex: 0 0 38%;
    }
    
    .commitment-right {
        padding: 60px 50px;
    }
    
    .commitment-quality-title {
        font-size: 2.5rem;
    }
    
    .commitment-right-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 992px) {
    .commitment-wrapper {
        flex-direction: column;
    }
    
    .commitment-quality {
        flex: none;
        padding: 60px 50px;
    }
    
    .commitment-right {
        padding: 60px 50px;
        min-height: 500px;
    }
    
    .commitment-right-item {
        margin-bottom: 60px;
    }
    
    .commitment-quality-title {
        font-size: 2.2rem;
        margin-bottom: 30px;
    }
    
    .commitment-quality-description {
        font-size: 1rem;
        line-height: 1.9;
    }
    
    .commitment-right-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .commitment-quality {
        padding: 50px 30px;
    }
    
    .commitment-right {
        padding: 50px 30px;
        min-height: 450px;
    }
    
    .commitment-quality-icon {
        width: 80px;
        height: 80px;
        margin-bottom: 30px;
    }
    
    .commitment-quality-icon svg {
        width: 60px;
        height: 60px;
    }
    
    .commitment-quality-title {
        font-size: 2rem;
        margin-bottom: 25px;
    }
    
    .commitment-quality-description {
        font-size: 0.95rem;
        line-height: 1.8;
    }
    
    .commitment-right-icon {
        width: 70px;
        height: 70px;
        margin-bottom: 25px;
    }
    
    .commitment-right-icon svg {
        width: 60px;
        height: 60px;
    }
    
    .commitment-right-title {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }
    
    .commitment-right-item {
        margin-bottom: 50px;
    }
}

@media (max-width: 576px) {
    .commitment-quality {
        padding: 40px 25px;
    }
    
    .commitment-right {
        padding: 40px 25px;
    }
    
    .commitment-quality-title {
        font-size: 1.8rem;
    }
    
    .commitment-right-title {
        font-size: 1.6rem;
    }
}

/* ============================================ 
   品质交期服务栏目样式 - 参考progress.red设计
   ============================================ */
.about-commitment-section {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-top: 0;
    margin-bottom: 0;
    padding: 0;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 背景图片 */
.commitment-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

/* 三列容器 */
.commitment-container {
    position: relative;
    z-index: 2;
    display: flex;
    width: 100%;
    max-width: 1400px;
    height: 500px;
    overflow: hidden;
}

/* 单个分栏 */
.commitment-column {
    position: relative;
    flex: 1;
    width: 33.333%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    padding: 40px;
    cursor: pointer;
    transition: all 0.5s ease;
    overflow: hidden;
    background: transparent;
    z-index: 2;
}

/* 分栏之间的线条 */
.commitment-column::after {
    content: '';
    position: absolute;
    top: 20%;
    bottom: 20%;
    right: 0;
    width: 1px;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.3), transparent);
    z-index: 1;
}

.commitment-column:last-child::after {
    display: none;
}

/* 图标 */
.commitment-icon {
    margin-bottom: 20px;
    z-index: 2;
    transition: all 0.3s ease;
}

.commitment-icon img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    transition: all 0.3s ease;
}

/* 标题 */
.commitment-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 15px 0;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    font-family: var(--heading-font, 'Noto Sans SC', sans-serif);
    z-index: 2;
    transition: all 0.3s ease;
}

/* 闪烁的小点 */
.commitment-dot {
    width: 8px;
    height: 8px;
    background: rgba(0, 128, 255, 0.9);
    border-radius: 50%;
    margin: 0 auto 20px;
    box-shadow: 0 0 15px rgba(0, 128, 255, 0.8), 0 0 30px rgba(0, 128, 255, 0.4);
    z-index: 2;
    transition: all 0.3s ease;
}

/* 文字描述 */
.commitment-description {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: all 0.5s ease;
    z-index: 2;
    margin-top: 0;
}

.commitment-description p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    font-family: var(--body-font, 'Noto Sans SC', sans-serif);
}

/* 鼠标悬停效果 */
.commitment-column:hover {
    background: rgba(31, 78, 121, 0.9);
    transform: scale(1.02);
    z-index: 4;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
}

.commitment-column:hover .commitment-icon img {
    transform: scale(1.1);
}

.commitment-column:hover .commitment-title {
    font-size: 1.6rem;
    text-shadow: 0 2px 15px rgba(0, 87, 255, 0.5);
}

.commitment-column:hover .commitment-dot {
    transform: scale(1.3);
    box-shadow: 0 0 25px rgba(0, 128, 255, 1), 0 0 50px rgba(0, 128, 255, 0.6);
}

/* 鼠标悬停时显示文字 */
.commitment-column:hover .commitment-description {
    max-height: 200px;
    opacity: 1;
    margin-top: 20px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .commitment-column {
        padding: 30px;
    }
    
    .commitment-description p {
        font-size: 0.9rem;
    }
}

@media (max-width: 992px) {
    .commitment-container {
        flex-direction: column;
        height: auto;
    }
    
    .commitment-column {
        min-height: 300px;
        margin-bottom: 1px;
    }
    
    .commitment-column::after {
        display: none;
    }
    
    .commitment-column:nth-child(2) {
        background: rgba(31, 78, 121, 0.8);
    }
    
    .commitment-column:hover {
        transform: none;
    }
}

@media (max-width: 768px) {
    .about-commitment-section {
        min-height: 400px;
    }
    
    .commitment-column {
        padding: 25px;
        min-height: 250px;
    }
    
    .commitment-icon img {
        width: 50px;
        height: 50px;
    }
    
    .commitment-title {
        font-size: 1.3rem;
    }
    
    .commitment-description p {
        font-size: 0.85rem;
    }
}

@media (max-width: 576px) {
    .commitment-column {
        padding: 20px;
        min-height: 200px;
    }
    
    .commitment-icon img {
        width: 40px;
        height: 40px;
    }
    
    .commitment-title {
        font-size: 1.2rem;
    }
    
    .commitment-description p {
        font-size: 0.8rem;
    }
}

/* ============================================ 
   公司简介栏目样式 - 图片样式左右分栏
   ============================================ */
.about-intro {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-bottom: 0;
    padding: 60px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 50%, #f8f9fa 100%);
    overflow: hidden;
}

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

.about-intro .section-heading {
    text-align: center;
    margin-bottom: 50px;
    padding-bottom: 15px;
    position: relative;
}

.about-intro .section-heading::after {
    left: 50%;
    transform: translateX(-50%);
}

.about-intro-inner {
    display: flex;
    align-items: center;
    gap: 50px;
    justify-content: space-between;
}

.about-intro-text {
    flex: 1;
    padding-right: 20px;
}

.about-intro-text h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    font-family: var(--heading-font, 'Noto Sans SC', sans-serif);
}

.about-intro-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 25px;
    font-family: var(--body-font, 'Noto Sans SC', sans-serif);
}

.about-services-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.about-services-list li {
    font-size: 1rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
    padding-left: 0;
    font-family: var(--body-font, 'Noto Sans SC', sans-serif);
}

.about-intro-image {
    flex: 0 0 500px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.about-intro-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .about-intro-inner {
        gap: 30px;
    }
    
    .about-intro-image {
        flex: 0 0 400px;
    }
}

@media (max-width: 992px) {
    .about-intro-inner {
        flex-direction: column;
        text-align: center;
    }
    
    .about-intro-text {
        padding-right: 0;
        margin-bottom: 30px;
    }
    
    .about-intro-image {
        flex: 0 0 auto;
        width: 100%;
        max-width: 500px;
    }
}

@media (max-width: 768px) {
    .about-intro {
        padding: 40px 0;
    }
    
    .about-intro-text h3 {
        font-size: 1.6rem;
    }
    
    .about-intro-text p {
        font-size: 1rem;
    }
    
    .about-services-list li {
        font-size: 0.95rem;
    }
}

/* ============================================ 
   客户展示栏目样式 - 非全屏
   ============================================ */
.about-clients {
    position: relative;
    margin-bottom: 0;
    padding: 60px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 50%, #f8f9fa 100%);
    border-radius: 20px;
    overflow: hidden;
}

/* 客户标题居中样式 */
.about-clients .subsection-heading {
    text-align: center;
    padding-bottom: 15px;
    position: relative;
}

.about-clients .subsection-heading::after {
    left: 50%;
    transform: translateX(-50%);
}

/* 客户网格布局 */
.clients-grid {
    max-width: 1200px;
    margin: 0 auto;
}

/* 核心优势栏目样式 */
.about-advantages {
    margin-top: 0;
    margin-bottom: 0;
}

/* 核心优势标题居中样式 */
.about-advantages .subsection-heading {
    text-align: center;
    padding-bottom: 15px;
    position: relative;
}

.about-advantages .subsection-heading::after {
    left: 50%;
    transform: translateX(-50%);
}

/* 客户部分响应式设计 */
@media (max-width: 992px) {
    .about-clients {
        padding: 50px 0;
        margin-bottom: 80px;
    }
}

@media (max-width: 768px) {
    .about-clients {
        padding: 40px 0;
        margin-bottom: 60px;
    }
}

@media (max-width: 576px) {
    .about-clients {
        padding: 30px 0;
        margin-bottom: 50px;
    }
}

/* ============================================ 
   主营业务栏目样式 - 2行2列布局带背景
   ============================================ */
.about-business {
    position: relative;
    margin-top: 0;
    margin-bottom: 0;
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 50%, #f8f9fa 100%);
    border-radius: 20px;
    overflow: hidden;
}

/* 背景装饰纹理 */
.about-business::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(0, 87, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 128, 255, 0.05) 0%, transparent 50%);
    z-index: 1;
}

.about-business .container {
    position: relative;
    z-index: 2;
}

.about-business .subsection-heading {
    color: #333;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    text-align: center;
    font-family: var(--heading-font, 'Noto Sans SC', sans-serif);
    padding-bottom: 15px;
    position: relative;
}

.about-business .subsection-heading::after {
    left: 50%;
    transform: translateX(-50%);
}

/* 2行2列网格布局 */
.business-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.business-item {
    padding: 45px 40px;
    background: #fff;
    border-radius: 16px;
    border: 2px solid rgba(0, 87, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.business-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 87, 255, 0.08), transparent);
    transition: left 0.6s ease;
    z-index: 1;
}

.business-item:hover::before {
    left: 100%;
}

.business-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0, 87, 255, 0.15), 0 4px 15px rgba(0, 0, 0, 0.1);
    border-color: rgba(0, 87, 255, 0.3);
    background: #fff;
}

.business-icon {
    font-size: 3.5rem;
    margin-bottom: 25px;
    color: #0057FF;
    transition: all 0.3s ease;
    display: block;
    position: relative;
    z-index: 2;
}

.business-item:hover .business-icon {
    transform: scale(1.15) rotate(5deg);
    color: #0080FF;
}

.business-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    margin: 0 0 18px 0;
    line-height: 1.4;
    position: relative;
    z-index: 2;
    font-family: var(--heading-font, 'Noto Sans SC', sans-serif);
}

.business-description {
    color: #666;
    font-size: 1rem;
    line-height: 1.8;
    margin: 0;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
    font-family: var(--body-font, 'Noto Sans SC', sans-serif);
}

.business-item:hover .business-description {
    color: #555;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-business {
        padding: 60px 0;
    }
    
    .about-business .subsection-heading {
        font-size: 2.2rem;
        margin-bottom: 50px;
    }
    
    .business-grid {
        gap: 25px;
    }
    
    .business-item {
        padding: 35px 30px;
    }
    
    .business-icon {
        font-size: 3rem;
        margin-bottom: 20px;
    }
    
    .business-title {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }
    
    .business-description {
        font-size: 0.95rem;
    }
}

@media (max-width: 768px) {
    .about-business {
        padding: 50px 0;
    }
    
    .about-business .subsection-heading {
        font-size: 2rem;
        margin-bottom: 40px;
    }
    
    .business-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        gap: 25px;
    }
    
    .business-item {
        padding: 35px 25px;
    }
    
    .business-icon {
        font-size: 2.8rem;
        margin-bottom: 20px;
    }
    
    .business-title {
        font-size: 1.25rem;
    }
    
    .business-description {
        font-size: 0.9rem;
        line-height: 1.7;
    }
} 

@media (max-width: 576px) {
    .about-business .subsection-heading {
        font-size: 1.8rem;
        margin-bottom: 35px;
    }
    
    .business-item {
        padding: 30px 20px;
    }
    
    .business-icon {
        font-size: 2.5rem;
    }
    
    .business-title {
        font-size: 1.2rem;
    }
}