* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

        /* 全局样式 */
        body {
            color: #333;
            background-color: #f8f9fa;
            line-height: 1.8;
                font-family: 'Inter', system-ui, sans-serif;
        }

        .container {
            width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        h2 {
            font-size: 32px;
            color: #2E5D59;
            text-align: center;
            margin: 60px 0 40px;
            font-weight: 700;
            position: relative;
        }

        h2::after {
            content: "";
            display: block;
            width: 80px;
            height: 3px;
            background-color: #d4af37;
            margin: 15px auto 0;
        }

        h3 {
            font-size: 24px;
            color: #2E5D59;
            margin-bottom: 20px;
            font-weight: 600;
        }

        p {
            font-size: 16px;
            color: #666;
            margin-bottom: 15px;
            text-align: justify;
        }

.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 16px;
}

@media (min-width: 640px) {
  .container {
    padding: 0 24px;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 32px;
  }
}

/* 自定义工具类 */
.text-shadow {
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.transition-all-300 {
  transition: all 0.3s ease;
}

.content-auto {
  content-visibility: auto;
}

/* 导航栏样式 - BEM命名规范 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

@media (min-width: 768px) {
  .navbar__inner {
    height: 80px;
  }
}

.navbar__logo {
  display: flex;
  align-items: center;
}

.navbar__logo-img {
  height: 40px;
  width: auto;
}

@media (min-width: 768px) {
  .navbar__logo-img {
    height: 44px;
  }
}

.navbar__desktop-menu {
  display: none;
  align-items: center;
  gap: 32px;
}

@media (min-width: 768px) {
  .navbar__desktop-menu {
    display: flex;
  }
}

.navbar__menu-link {
  color: #475569;
  transition: color 0.3s ease;
  text-decoration: none;
}


.navbar__menu-link:hover {
  color: #165DFF;
}

.navbar__desktop-buttons {
  display: none;
  align-items: center;
  gap: 16px;
}

@media (min-width: 768px) {
  .navbar__desktop-buttons {
    display: flex;
  }
}

.navbar__button {
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

.navbar__button--primary {
  background-color: #165DFF;
  color: #FFFFFF;
}

.navbar__button--primary:hover {
  background-color: rgba(22, 93, 255, 0.9);
}

.navbar__button--secondary {
  background-color: #FF7D00;
  color: #FFFFFF;
}

.navbar__button--secondary:hover {
  background-color: rgba(255, 125, 0, 0.9);
}

.navbar__menu-toggle {
  display: block;
  color: #334155;
  background: none;
  border: none;
  outline: none;
  cursor: pointer;
  transition: color 0.3s ease;
}

@media (min-width: 768px) {
  .navbar__menu-toggle {
    display: none;
  }
}

.navbar__menu-toggle:hover {
  color: #165DFF;
}

.navbar__menu-toggle-icon {
  font-size: 24px;
}

.navbar__mobile-menu {
  display: none;
  background-color: #FFFFFF;
  border-top: 1px solid #E2E8F0;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.navbar__mobile-menu--show {
  display: block;
}

.navbar__mobile-menu-inner {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.navbar__mobile-link {
  display: block;
  padding: 8px 0;
  color: #475569;
  text-decoration: none;
  transition: color 0.3s ease;
}

.navbar__mobile-link--active {
  color: #1E293B;
}

.navbar__mobile-link:hover {
  color: #165DFF;
}

.navbar__mobile-buttons {
  display: flex;
  gap: 12px;
  padding-top: 8px;
}

.navbar__mobile-button {
  flex: 1;
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
}
/* 页脚样式 */
.footer {
  background-color: #1E293B;
  color: #FFFFFF;
  padding: 48px 0;
}

.footer__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer__column-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer__column-text {
  color: #CBD5E1;
  font-size: 14px;
}

.footer__column-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__column-link {
  color: #CBD5E1;
  font-size: 14px;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer__column-link:hover {
  color: #FFFFFF;
}

.footer__column-item {
  color: #CBD5E1;
  font-size: 14px;
  display: flex;
  align-items: center;
}

.footer__column-icon {
  margin-right: 8px;
}

.footer__bottom {
  border-top: 1px solid #334155;
  padding-top: 32px;
  text-align: center;
}

.footer__copyright {
  color: #94A3B8;
  font-size: 14px;
}

/* 悬浮广告样式 */
.floating-ad {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: #FFFFFF;
  box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
  z-index: 40;
  border-top: 1px solid #E2E8F0;
}

.floating-ad__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 640px) {
  .floating-ad__inner {
    flex-direction: row;
    gap: 0;
  }
}

.floating-ad__text {
  color: #334155;
  font-size: 14px;
  margin-bottom: 0;
}

@media (min-width: 640px) {
  .floating-ad__text {
    margin-bottom: 0;
  }
}

.floating-ad__buttons {
  display: flex;
  gap: 16px;
  align-items: center;
}

.floating-ad__button {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.floating-ad__button--primary {
  background-color: #165DFF;
  color: #FFFFFF;
}

.floating-ad__button--primary:hover {
  background-color: rgba(22, 93, 255, 0.9);
}

.floating-ad__button--secondary {
  border: 1px solid #E2E8F0;
  color: #334155;
  background-color: transparent;
}

.floating-ad__button--secondary:hover {
  background-color: #F9FAFB;
}

.floating-ad__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748B;
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.3s ease;
}

.floating-ad__close:hover {
  color: #334155;
}


        /* 面包屑导航样式 */
        .breadcrumb {
            margin-top: 80px;
            padding: 20px 0;
            background-color: #fff;
            border-bottom: 1px solid #eee;
        }

        .breadcrumb-list {
            list-style: none;
            display: flex;
        }

        .breadcrumb-list li {
            margin-right: 10px;
        }

        .breadcrumb-list a {
            color: #2E5D59;
            text-decoration: none;
        }

        .breadcrumb-list a:hover {
            color: #d4af37;
        }

        .breadcrumb-list .active {
            color: #666;
        }

        .breadcrumb-list li::after {
            content: ">";
            margin-left: 10px;
            color: #999;
        }

        .breadcrumb-list li:last-child::after {
            content: "";
        }

        /* 广告图样式（已适配1920*400尺寸背景图） */
        .banner {
            width: 100%;
            height: 400px; /* 固定400px高度，匹配1920*400图片 */
            background: url(/images/about_banner.png) no-repeat center center;
            background-size: cover; /* 保证1920宽图铺满屏幕，不拉伸变形 */
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: #2E5D59; /* 图片加载失败兜底色 */
        }

        .banner-mask {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0, 47, 108, 0.6);
            z-index: 1;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            text-align: center;
            max-width: 800px;
            padding: 0 20px;
        }

        .banner-content .q {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 20px;
            color: #d4af37;
        }

        .banner-content .a {
            font-size: 18px;
            line-height: 1.8;
            text-align: center;
        }

        /* 品牌价值样式 */
        .brand-value {
            padding: 30px 0;
            background-color: #fff;
            margin-bottom: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
        }

        .value-item {
            display: flex;
            align-items: center;
            margin-bottom: 60px;
        }

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

        .value-img {
            width: 50%;
            height: 350px;
            border-radius: 8px;
            overflow: hidden;
        }

        .value-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .value-text {
            width: 50%;
            padding: 0 40px;
        }

        .value-item.reverse {
            flex-direction: row-reverse;
        }

        /* 品牌活动样式 */
        .brand-activities {
            padding: 30px 0;
        }

        .activities-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .activity-card {
            background-color: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 15px rgba(0,0,0,0.06);
            transition: transform 0.3s ease;
        }

        .activity-card:hover {
            transform: translateY(-5px);
        }

        .activity-img {
            width: 100%;
            height: 250px;
        }

        .activity-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .activity-content {
            padding: 25px;
        }

        /* 荣誉奖项时间轴样式（新增奖杯图片容器，适配500*300尺寸） */
        .honors {
            padding: 30px 0 80px;
            background-color: #fff;
            margin-top: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
        }

        .timeline {
            position: relative;
            max-width: 1200px; /* 加宽以容纳奖杯图 */
            margin: 0 auto;
        }

        .timeline::after {
            content: '';
            position: absolute;
            width: 3px;
            background-color: #2E5D59;
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -1.5px;
            z-index: 1;
        }

        /* 时间轴项（包含文字内容+奖杯图片） */
        .timeline-item {
            padding: 15px 40px;
            position: relative;
            width: 50%;
            box-sizing: border-box;
            margin-bottom: 30px; /* 增加间距，优化显示 */
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            background-color: #d4af37;
            border: 4px solid #2E5D59;
            border-radius: 50%;
            top: 20px;
            z-index: 2;
        }

        .timeline-left {
            left: 0;
        }

        .timeline-right {
            left: 50%;
        }

        .timeline-left::after {
            right: -11px;
        }

        .timeline-right::after {
            left: -9px;
        }

        /* 文字内容容器 */
        .timeline-content {
            padding: 25px;
            background-color: #f8f9fa;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: relative;
            z-index: 1;
        }

        /* 奖杯图片容器（预留500*300尺寸） */
        .timeline-trophy {
            width: 500px; /* 固定宽度500px */
            height: 300px; /* 固定高度300px */
            border-radius: 8px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            position: absolute;
            z-index: 1;
        }

        /* 左侧时间轴的奖杯：放在右侧（时间轴对面） */
        .timeline-left .timeline-trophy {
            right: -540px; /* 偏移量，保证与文字内容间距适中 */
            top: 50%;
            transform: translateY(-50%);
        }

        /* 右侧时间轴的奖杯：放在左侧（时间轴对面） */
        .timeline-right .timeline-trophy {
            left: -540px; /* 偏移量，保证与文字内容间距适中 */
            top: 50%;
            transform: translateY(-50%);
        }

        .timeline-trophy placeholder {
            color: #999;
            font-size: 14px;
            text-align: center;
        }

        .timeline-time {
            font-size: 18px;
            color: #2E5D59;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .timeline-title {
            font-size: 20px;
            color: #2E5D59;
            margin-bottom: 15px;
            font-weight: 600;
        }

        /* 响应式适配 */
        @media (max-width: 1200px) {
            .container {
                width: 95%;
            }
        }

        @media (max-width: 992px) {
            .value-item {
                flex-direction: column;
            }

            .value-img, .value-text {
                width: 100%;
            }

            .value-text {
                padding: 20px 0 0;
            }

            .activities-grid {
                grid-template-columns: 1fr;
            }

            /* 移动端时间轴调整：垂直排列，奖杯在文字上下方 */
            .timeline::after {
                left: 31px;
            }

            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
                position: relative;
                left: 0 !important; /* 取消左右偏移 */
                margin-bottom: 40px;
            }

            .timeline-item::after {
                left: 22px;
                right: auto;
            }

            /* 移动端：奖杯改为相对定位，在文字内容下方，取消绝对定位 */
            .timeline-trophy {
                position: relative;
                width: 100%; /* 移动端宽度自适应 */
                height: 300px; /* 保留300px高度 */
                margin-top: 15px; /* 与文字内容间距 */
                left: 0 !important;
                right: 0 !important;
                top: 0 !important;
                transform: none !important;
            }

            .timeline-left .timeline-trophy,
            .timeline-right .timeline-trophy {
                position: relative;
                margin-top: 15px;
                width: 100%;
            }
        }

        @media (max-width: 576px) {
            .nav-menu {
                display: none;
            }

            h2 {
                font-size: 26px;
            }

            h3 {
                font-size: 20px;
            }

            .banner-content .q {
                font-size: 24px;
            }

            .banner-content .a {
                font-size: 16px;
            }

            .timeline-content {
                padding: 20px;
            }

            .timeline-time {
                font-size: 16px;
            }

            .timeline-title {
                font-size: 18px;
            }

            .timeline-trophy {
                height: 250px; /* 移动端适当降低奖杯高度，优化显示 */
            }
        }