/* ============================================================
   about.css  ——  关于我们（深色科技风 / 与首页视觉统一）
   作用域：body.page-about，不影响其他内页
   色板：#0B192C 深蓝底 / #0EA5E9 极光蓝 / #F97316 能量橙
   ============================================================ */

body.page-about {
    background: #0B192C;
    color: rgba(255, 255, 255, .86);
}

/* ---------- 顶部共享头部覆盖（仅关于我们页生效） ---------- */
body.page-about .header { position: relative; z-index: 99999; }

body.page-about .head-top {
    background: #0B192C;
    border-bottom: 1px solid rgba(14, 165, 233, .18);
    color: rgba(255, 255, 255, .7);
}
body.page-about .head-top .fl { color: rgba(255, 255, 255, .66); }
body.page-about .hotLine .span1 { color: #0EA5E9; }
body.page-about .hotLine .span2 { color: #fff; }

body.page-about .head-mid { height: 80px; }
body.page-about .head-con {
    background: rgba(11, 25, 44, .92);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid rgba(14, 165, 233, .25);
    height: 80px;
}
body.page-about .logo { top: 18px; }
body.page-about .logo img { max-width: 170px; }

body.page-about .nav-yi {
    line-height: 80px;
    color: rgba(255, 255, 255, .82);
    letter-spacing: 1px;
    transition: color .2s ease;
}
body.page-about .menu-box li:hover .nav-yi,
body.page-about .menu-box li.active .nav-yi { color: #fff; }
body.page-about .nav-yi:after { border-top-color: #0EA5E9; }
body.page-about .menu-box li.active .nav-yi { color: #0EA5E9; }

body.page-about .nav-er-box {
    background: rgba(11, 25, 44, .96);
    border: 1px solid rgba(14, 165, 233, .25);
    border-radius: 8px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, .45);
}
body.page-about .nav-er-box a {
    color: rgba(255, 255, 255, .78);
    line-height: 42px;
}
body.page-about .nav-er-box a:hover { color: #0EA5E9; background: rgba(14, 165, 233, .1); }

body.page-about .menu-handler .burger { background: #0EA5E9; }

/* 内页 banner：关于我们页用专属深色科技风图，覆盖动态广告图 */
body.page-about .ban {
    position: relative;
    height: 360px;
    background: #0B192C url("/Content/Images/banner_about_heverdin.png") center center / cover no-repeat;
    overflow: hidden;
}
body.page-about .ban::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(180deg, rgba(11, 25, 44, .35) 0%, rgba(11, 25, 44, .85) 100%);
}
/* 隐藏广告系统注入的 <img>，避免与新背景重叠 */
body.page-about .ban img { display: none; }

/* banner 文字叠加层（仅 about 页） */
body.page-about .ban .about-ban-overlay {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    width: auto;
    max-width: 880px;
    padding: 40px 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: rgba(11, 25, 44, .45);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(14, 165, 233, .3);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, .45);
}
body.page-about .about-ban-kicker {
    margin: 0 0 14px 0;
    color: #0EA5E9;
    font-size: 13px;
    letter-spacing: 6px;
    font-weight: 600;
}
body.page-about .about-ban-title {
    margin: 0 0 16px 0;
    color: #fff;
    font-size: clamp(22px, 3vw, 38px);
    font-weight: 700;
    letter-spacing: 2px;
    line-height: 1.3;
    text-shadow: 0 4px 20px rgba(0, 0, 0, .45);
}
body.page-about .about-ban-desc {
    margin: 0 auto;
    max-width: 760px;
    color: rgba(255, 255, 255, .82);
    font-size: clamp(13px, 1.2vw, 16px);
    letter-spacing: 1px;
    line-height: 1.6;
}
@media (max-width: 768px) {
    body.page-about .about-ban-kicker { letter-spacing: 3px; margin-bottom: 10px; }
    body.page-about .about-ban-title { letter-spacing: 1px; }
}

/* ---------- 页面顶部标题区 ---------- */
body.page-about .position {
    height: auto;
    margin-top: 0;
    padding: 64px 0 40px 0;
    background:
        radial-gradient(1200px 300px at 80% 0%, rgba(14, 165, 233, .12), transparent 60%),
        linear-gradient(180deg, #0B192C 0%, #0f2540 100%);
    position: relative;
    z-index: 6;
}
body.page-about .position h2 {
    width: auto;
    background: none;
    color: #fff;
    font-size: 30px;
    font-weight: 700;
    letter-spacing: 3px;
    line-height: 1.2;
    text-align: left;
}
body.page-about .position h2:before { display: none; }
body.page-about .gk-title img { width: 30px; height: 30px; margin: -2px 10px 0 0; }
body.page-about .about-hero-sub {
    margin: 14px 0 0 0;
    color: rgba(14, 165, 233, .85);
    font-size: 14px;
    letter-spacing: 2px;
    font-weight: 500;
}
body.page-about .about-crumb {
    margin-top: 18px;
    font-size: 13px;
    color: rgba(255, 255, 255, .5);
}
body.page-about .about-crumb a { color: rgba(255, 255, 255, .6); }
body.page-about .about-crumb a:hover { color: #0EA5E9; }
body.page-about .about-crumb i { margin: 0 8px; font-style: normal; color: rgba(255, 255, 255, .3); }
body.page-about .about-crumb span { color: #0EA5E9; }

/* ---------- 主体布局 ---------- */
body.page-about .contentbox {
    padding: 56px 0 80px 0;
    min-height: 500px;
    background: #0B192C;
}
body.page-about .about-layout { display: flex; align-items: flex-start; gap: 40px; }

/* ---------- 左侧子导航 ---------- */
body.page-about .brief-nav {
    width: 220px;
    position: relative;
    left: auto; top: auto;
    flex: 0 0 220px;
    position: sticky;
    top: 100px;
}
body.page-about .brief-nav-con li { margin-top: 0; margin-bottom: 10px; }
body.page-about .left-yi {
    display: block;
    line-height: 52px;
    background: rgba(255, 255, 255, .04);
    color: rgba(255, 255, 255, .78);
    border: 1px solid rgba(14, 165, 233, .18);
    border-radius: 8px;
    padding: 0 18px;
    transition: all .2s ease;
}
body.page-about .left-yi:hover {
    color: #fff;
    border-color: rgba(14, 165, 233, .5);
    background: rgba(14, 165, 233, .1);
}
body.page-about .left-yi:before { display: none; }
body.page-about .brief-nav-con li.active .left-yi {
    color: #fff;
    background: linear-gradient(90deg, #0EA5E9 0%, #1E3A8A 100%);
    border-color: #0EA5E9;
    box-shadow: 0 8px 20px rgba(14, 165, 233, .3);
}
body.page-about .brief-nav-con li.active .left-yi:before { display: none; }
body.page-about .zksq { display: none !important; }

/* ---------- 右侧内容区 ---------- */
body.page-about .box-right {
    margin-left: 0;
    padding-top: 0;
    flex: 1;
    min-width: 0;
}
body.page-about .title2 {
    border-bottom: 1px solid rgba(14, 165, 233, .25);
    line-height: 56px;
}
body.page-about .title2 h4 {
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 1px;
}
body.page-about .title2 h4 img { filter: none; margin: -4px 10px 0 0; }
body.page-about .title2 h4:after { border-top-color: #0EA5E9; }
body.page-about .title2 span { color: rgba(14, 165, 233, .6); font-size: 18px; }

/* 文章正文 */
body.page-about .about-intro {
    margin-top: 28px;
    padding: 32px 34px;
    background: rgba(255, 255, 255, .03);
    border: 1px solid rgba(14, 165, 233, .18);
    border-radius: 12px;
    color: rgba(255, 255, 255, .82);
    font-size: 15px;
    line-height: 1.9;
}
body.page-about .about-intro p { margin: 0 0 16px 0; color: rgba(255, 255, 255, .8); }
body.page-about .about-intro img { max-width: 100%; height: auto; border-radius: 8px; margin: 8px 0; }
body.page-about .about-intro h1,
body.page-about .about-intro h2,
body.page-about .about-intro h3 { color: #fff; margin: 20px 0 12px 0; font-weight: 600; }
body.page-about .gywm-edit img { max-width: 100%; }

/* ---------- 数据统计 ---------- */
body.page-about .about-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin: 32px 0 0 0;
}
body.page-about .about-stat {
    flex: 1 1 22%;
    min-width: 150px;
    padding: 24px 18px;
    text-align: center;
    background: linear-gradient(160deg, rgba(14, 165, 233, .12) 0%, rgba(30, 58, 138, .08) 100%);
    border: 1px solid rgba(14, 165, 233, .25);
    border-radius: 12px;
    transition: transform .25s ease, box-shadow .25s ease;
}
body.page-about .about-stat:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(14, 165, 233, .22);
}
body.page-about .about-stat b {
    display: block;
    font-size: 40px;
    font-weight: 700;
    color: #0EA5E9;
    line-height: 1.1;
    font-family: 'DIN Alternate', 'Helvetica Neue', dincondBold, sans-serif;
}
body.page-about .about-stat span {
    display: block;
    margin-top: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, .68);
    letter-spacing: 1px;
}

/* ---------- 使命 / 愿景 / 价值观 ---------- */
body.page-about .about-values {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin: 32px 0 0 0;
}
body.page-about .about-value-card {
    flex: 1 1 30%;
    min-width: 240px;
    padding: 26px 24px;
    background: rgba(255, 255, 255, .03);
    border: 1px solid rgba(14, 165, 233, .18);
    border-left: 3px solid #F97316;
    border-radius: 10px;
    transition: all .25s ease;
}
body.page-about .about-value-card:hover {
    border-left-color: #0EA5E9;
    background: rgba(14, 165, 233, .06);
    transform: translateY(-3px);
}
body.page-about .about-value-card h5 {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 2px;
    margin: 0 0 12px 0;
}
body.page-about .about-value-card p {
    margin: 0;
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .72);
}

/* ---------- CTA ---------- */
body.page-about .about-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    margin: 36px 0 0 0;
    padding: 32px 36px;
    background: linear-gradient(90deg, #1E3A8A 0%, #0B192C 100%);
    border: 1px solid rgba(14, 165, 233, .3);
    border-radius: 12px;
}
body.page-about .about-cta-text h3 {
    margin: 0 0 6px 0;
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 1px;
}
body.page-about .about-cta-text p {
    margin: 0;
    color: rgba(255, 255, 255, .7);
    font-size: 14px;
}
body.page-about .about-cta-btn {
    display: inline-block;
    padding: 14px 34px;
    background: #F97316;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(249, 115, 22, .35);
    transition: transform .25s ease, box-shadow .25s ease;
}
body.page-about .about-cta-btn:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 12px 32px rgba(249, 115, 22, .5);
    color: #fff;
}

/* ---------- 发展历程时间轴（深色覆盖） ---------- */
body.page-about .history-year {
    border-color: rgba(14, 165, 233, .3);
    background: rgba(14, 165, 233, .06);
}
body.page-about .history-con { background: rgba(255, 255, 255, .03); }
body.page-about .history-txt p { color: rgba(255, 255, 255, .82); font-size: 15px; line-height: 1.9; }

body.page-about .preview:before { border-top-color: rgba(14, 165, 233, .25); }
body.page-about .his-dots { background: rgba(14, 165, 233, .45); }
body.page-about .his-line { border-right-color: rgba(14, 165, 233, .25); }
body.page-about .his-nian {
    color: rgba(255, 255, 255, .78);
    font-size: 26px;            /* 缩小一点，让 2024.04 这类长标签不挤 */
    letter-spacing: .5px;
}
body.page-about .swiper-slide.active-nav .his-nian,
body.page-about .swiper-slide:hover .his-nian { color: #0EA5E9; }
body.page-about .swiper-slide.active-nav .his-dots,
body.page-about .swiper-slide:hover .his-dots { background: #0EA5E9; box-shadow: 0 0 12px rgba(14, 165, 233, .6); }
body.page-about .swiper-slide.active-nav .his-line,
body.page-about .swiper-slide:hover .his-line { border-right-color: #0EA5E9; }

body.page-about .his-btn a { border-color: rgba(14, 165, 233, .4); background: rgba(14, 165, 233, .1); }
body.page-about .his-btn a:hover { background: rgba(14, 165, 233, .25); }

/* ---------- 响应式 ---------- */
@media only screen and (max-width: 1100px) {
    body.page-about .w1388 { width: 92%; }
    body.page-about .about-layout { flex-direction: column; }
    body.page-about .brief-nav {
        width: 100%;
        flex: none;
        position: relative;
        top: auto;
    }
    body.page-about .brief-nav-con ul { display: flex; flex-wrap: wrap; gap: 10px; }
    body.page-about .brief-nav-con li { margin: 0; flex: 1 1 22%; min-width: 120px; }
    body.page-about .left-yi { line-height: 44px; padding: 0 10px; font-size: 14px; }
    body.page-about .box-right { width: 100%; }
}

@media only screen and (max-width: 760px) {
    body.page-about .position { padding: 44px 0 28px 0; }
    body.page-about .position h2 { font-size: 24px; }
    body.page-about .ban { height: 220px; }
    body.page-about .ban .about-ban-overlay { padding: 24px 20px; max-width: 92%; }
    body.page-about .about-intro { padding: 22px 18px; font-size: 14px; }
    body.page-about .about-stat b { font-size: 30px; }
    body.page-about .about-cta { padding: 24px; }
    body.page-about .about-cta-text h3 { font-size: 18px; }
    body.page-about .brief-nav-con li { flex: 1 1 45%; }
}