/* 关于我们 — 作用域 page_about */
body.page_about{
    background:#fff;
    scroll-behavior:smooth;
}

/* ========== 滚动显现 ========== */
body.page_about .about_reveal{
    opacity:0;
    transform:translateY(36px);
    transition:opacity .7s cubic-bezier(.22,1,.36,1), transform .7s cubic-bezier(.22,1,.36,1);
}
body.page_about .about_reveal.is-visible{
    opacity:1;
    transform:translateY(0);
}
body.page_about .about_intro_fig.about_reveal{
    transform:translateX(-28px);
}
body.page_about .about_intro_fig.about_reveal.is-visible{
    transform:translateX(0);
}
body.page_about .about_intro_copy.about_reveal{
    transform:translateX(28px);
}
body.page_about .about_intro_copy.about_reveal.is-visible{
    transform:translateX(0);
}

/* ========== Banner ========== */
body.page_about .banner.about_banner{
    position:relative;
    width:100%;
    height:min(72vh, 520px);
    min-height:400px;
    overflow:hidden;
}
body.page_about .about_banner_overlay{
    position:absolute;
    inset:0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 80%, rgba(43,120,246,.35) 0%, transparent 55%),
        linear-gradient(105deg, rgba(0,32,96,.78) 0%, rgba(0,88,231,.62) 42%, rgba(0,88,231,.28) 100%);
    pointer-events:none;
}
body.page_about .about_banner_deco{
    position:absolute;
    inset:0;
    pointer-events:none;
    overflow:hidden;
}
body.page_about .about_orb{
    position:absolute;
    border-radius:50%;
    background:radial-gradient(circle at 30% 30%, rgba(255,255,255,.45), rgba(43,120,246,.15) 60%, transparent 70%);
    filter:blur(1px);
    animation:about-orb-float 8s ease-in-out infinite;
}
body.page_about .about_orb--1{
    width:180px;
    height:180px;
    top:18%;
    left:12%;
    animation-duration:9s;
}
body.page_about .about_orb--2{
    width:120px;
    height:120px;
    top:55%;
    right:18%;
    animation-delay:-3s;
    animation-duration:11s;
}
body.page_about .about_orb--3{
    width:90px;
    height:90px;
    bottom:22%;
    left:42%;
    animation-delay:-5s;
    animation-duration:7s;
}
@keyframes about-orb-float{
    0%, 100%{ transform:translate(0, 0) scale(1); }
    50%{ transform:translate(12px, -18px) scale(1.06); }
}
body.page_about .about_ban_cont{
    position:relative;
    z-index:1;
    color:#fff;
    text-align:center;
    max-width:880px;
    padding:0 24px;
}
body.page_about .about_ban_cont h3{
    margin:0 0 20px;
    font-family:PingFang SC, Microsoft YaHei UI, sans-serif;
    font-size:clamp(36px, 5vw, 56px);
    font-weight:800;
    line-height:1.15;
    letter-spacing:.06em;
    text-shadow:0 6px 32px rgba(0,20,60,.35);
}
body.page_about .about_ban_cont p{
    margin:0 auto;
    max-width:640px;
    font-size:clamp(15px, 2vw, 20px);
    font-weight:400;
    line-height:1.8;
    opacity:.94;
}
body.page_about .about_scroll_hint{
    position:absolute;
    left:50%;
    bottom:28px;
    z-index:2;
    transform:translateX(-50%);
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:6px;
    color:rgba(255,255,255,.85);
    text-decoration:none;
    font-size:12px;
    letter-spacing:.2em;
    transition:opacity .25s ease, transform .25s ease;
}
body.page_about .about_scroll_hint:hover{
    color:#fff;
    transform:translateX(-50%) translateY(4px);
}
body.page_about .about_scroll_hint_ico{
    display:block;
    font-size:14px;
    animation:about-bounce 2s ease infinite;
}
@keyframes about-bounce{
    0%, 100%{ transform:translateY(0); }
    50%{ transform:translateY(6px); }
}

/* ========== 数据亮点条 ========== */
body.page_about .about_stats{
    position:relative;
    z-index:2;
    margin-top:-48px;
    padding:0 0 24px;
}
body.page_about .about_stats_grid{
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap:20px;
    padding:28px 32px;
    border-radius:20px;
    background:#fff;
    box-shadow:0 20px 60px rgba(0,88,231,.14), 0 0 0 1px rgba(0,88,231,.06);
}
body.page_about .about_stat_card{
    text-align:center;
    padding:8px 12px;
    border-right:1px solid rgba(0,88,231,.08);
    transition:transform .25s ease;
}
body.page_about .about_stat_card:last-child{
    border-right:none;
}
body.page_about .about_stat_card:hover{
    transform:translateY(-4px);
}
body.page_about .about_stat_val{
    display:block;
    font-family:PingFang SC, sans-serif;
    font-size:clamp(28px, 3.5vw, 40px);
    font-weight:800;
    line-height:1.1;
    background:linear-gradient(135deg, #0058E7 0%, #2B78F6 55%, #5b9dff 100%);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
}
body.page_about .about_stat_lbl{
    display:block;
    margin-top:8px;
    font-size:14px;
    color:#566073;
    font-weight:500;
}

/* ========== 公司介绍 ========== */
body.page_about .about_intro{
    padding:88px 0 100px;
    background:linear-gradient(180deg, #f8fbff 0%, #fff 55%, #fff 100%);
}
body.page_about .about_intro_grid{
    display:grid;
    grid-template-columns:minmax(0, 1.08fr) minmax(0, 1fr);
    gap:72px;
    align-items:center;
}
body.page_about .about_intro_fig{
    margin:0;
    position:relative;
}
body.page_about .about_intro_fig::before{
    content:"";
    position:absolute;
    left:-20px;
    top:-20px;
    width:58%;
    height:58%;
    border-radius:20px;
    background:linear-gradient(135deg, #0058E7 0%, #2B78F6 100%);
    opacity:.14;
    z-index:0;
}
body.page_about .about_intro_ring{
    position:absolute;
    left:50%;
    top:50%;
    width:72%;
    height:72%;
    margin:-36% 0 0 -36%;
    border:2px solid rgba(43,120,246,.35);
    border-radius:50%;
    z-index:2;
    pointer-events:none;
    animation:about-ring-pulse 3.2s ease-out infinite;
}
body.page_about .about_intro_ring::after{
    content:"";
    position:absolute;
    inset:12%;
    border:1px dashed rgba(43,120,246,.25);
    border-radius:50%;
    animation:about-ring-spin 24s linear infinite;
}
@keyframes about-ring-pulse{
    0%{ transform:scale(.92); opacity:.5; }
    50%{ transform:scale(1.04); opacity:1; }
    100%{ transform:scale(.92); opacity:.5; }
}
@keyframes about-ring-spin{
    to{ transform:rotate(360deg); }
}
body.page_about .about_intro_fig img{
    position:relative;
    z-index:1;
    display:block;
    width:100%;
    border-radius:20px;
    box-shadow:0 32px 64px rgba(0,88,231,.2);
    object-fit:cover;
    transition:transform .5s cubic-bezier(.22,1,.36,1), box-shadow .5s ease;
}
body.page_about .about_intro_fig:hover img{
    transform:scale(1.02);
    box-shadow:0 40px 72px rgba(0,88,231,.26);
}
body.page_about .about_eyebrow{
    display:inline-block;
    margin-bottom:14px;
    padding:6px 16px;
    border-radius:999px;
    background:rgba(0,88,231,.08);
    color:#0058E7;
    font-family:PingFang SC, sans-serif;
    font-size:13px;
    font-weight:600;
    letter-spacing:.14em;
    line-height:1.4;
}
body.page_about .about_eyebrow--center{
    display:block;
    width:fit-content;
    margin-left:auto;
    margin-right:auto;
}
body.page_about .about_intro_h{
    margin:0 0 28px;
    color:#0a1f4f;
    font-family:PingFang SC, Microsoft YaHei UI, sans-serif;
    font-size:clamp(32px, 4vw, 44px);
    font-weight:800;
    line-height:1.2;
}
body.page_about .about_intro_body,
body.page_about .about_intro_body p{
    color:#3d4a63;
    font-family:PingFang SC, sans-serif;
    font-size:17px;
    font-weight:400;
    line-height:1.9;
}
body.page_about .about_intro_body p{
    margin:0 0 18px;
}
body.page_about .about_intro_body p:first-child{
    font-size:18px;
    color:#1a2744;
    font-weight:500;
}
body.page_about .about_intro_body p:last-child{
    margin-bottom:0;
}

/* ========== 企业文化 ========== */
body.page_about .about_culture{
    padding:80px 0 120px;
    background:
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(43,120,246,.08) 0%, transparent 60%),
        linear-gradient(180deg, #eef5ff 0%, #f4faff 40%, #fff 100%);
    position:relative;
    overflow:visible;
}
body.page_about .about_culture_layout{
    display:grid;
    grid-template-columns:240px minmax(0, 1fr);
    grid-template-areas:
        "head head"
        "nav stories";
    gap:40px;
    align-items:start;
}
body.page_about .about_culture_head{
    grid-area:head;
    text-align:center;
    padding:0 0 40px;
    position:relative;
    z-index:1;
}
body.page_about .about_culture_title{
    margin:0;
    color:#0a1f4f;
    font-family:PingFang SC, Microsoft YaHei UI, sans-serif;
    font-size:clamp(32px, 4vw, 44px);
    font-weight:800;
    line-height:1.2;
}
body.page_about .about_culture_head::after{
    content:"";
    display:block;
    width:64px;
    height:4px;
    margin:22px auto 0;
    border-radius:2px;
    background:linear-gradient(90deg, #0058E7, #2B78F6);
}

body.page_about .about_stories{
    grid-area:stories;
}
body.page_about .about_culture_nav{
    grid-area:nav;
    position:sticky;
    top:100px;
    display:flex;
    flex-direction:column;
    gap:8px;
    padding:16px;
    border-radius:16px;
    background:rgba(255,255,255,.75);
    backdrop-filter:blur(12px);
    box-shadow:0 12px 40px rgba(0,88,231,.1);
    border:1px solid rgba(0,88,231,.08);
}
body.page_about .about_nav_btn{
    display:flex;
    align-items:flex-start;
    gap:10px;
    width:100%;
    padding:12px 14px;
    border:none;
    border-radius:12px;
    background:transparent;
    text-align:left;
    cursor:pointer;
    transition:background .2s ease, transform .2s ease, box-shadow .2s ease;
    font-family:PingFang SC, sans-serif;
}
body.page_about .about_nav_btn:hover{
    background:rgba(0,88,231,.06);
}
body.page_about .about_nav_btn.is-active{
    background:linear-gradient(135deg, #0058E7 0%, #2B78F6 100%);
    box-shadow:0 8px 24px rgba(0,88,231,.28);
    transform:translateX(4px);
}
body.page_about .about_nav_idx{
    flex-shrink:0;
    font-size:13px;
    font-weight:800;
    color:#0058E7;
    line-height:1.4;
}
body.page_about .about_nav_btn.is-active .about_nav_idx{
    color:rgba(255,255,255,.9);
}
body.page_about .about_nav_tt{
    font-size:13px;
    font-weight:600;
    color:#3d4a63;
    line-height:1.45;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
}
body.page_about .about_nav_btn.is-active .about_nav_tt{
    color:#fff;
}

body.page_about .about_stories{
    display:flex;
    flex-direction:column;
    gap:0;
}
body.page_about .about_story{
    display:grid;
    grid-template-columns:minmax(0, 1fr) minmax(0, 1.1fr);
    gap:56px;
    align-items:center;
    padding:48px 32px;
    margin-bottom:24px;
    border-radius:20px;
    background:#fff;
    border:1px solid rgba(0,88,231,.06);
    box-shadow:0 8px 32px rgba(15,35,80,.06);
    transition:box-shadow .35s ease, transform .35s ease, border-color .35s ease;
    scroll-margin-top:100px;
}
body.page_about .about_story.is-active-story{
    border-color:rgba(0,88,231,.18);
    box-shadow:0 20px 56px rgba(0,88,231,.12);
}
body.page_about .about_story:last-child{
    margin-bottom:0;
}
body.page_about .about_story--reverse .about_story_visual{
    order:-1;
}
body.page_about .about_story_copy{
    position:relative;
    padding-left:4px;
}
body.page_about .about_story_num{
    display:block;
    margin-bottom:6px;
    font-family:PingFang SC, sans-serif;
    font-size:64px;
    font-weight:800;
    line-height:1;
    letter-spacing:-.03em;
    background:linear-gradient(180deg, rgba(0,88,231,.22) 0%, rgba(0,88,231,.04) 100%);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
    user-select:none;
}
body.page_about .about_story_tt{
    margin:0 0 18px;
    color:#0a1f4f;
    font-family:PingFang SC, sans-serif;
    font-size:clamp(24px, 2.5vw, 32px);
    font-weight:700;
    line-height:1.35;
}
body.page_about .about_story_text,
body.page_about .about_story_text.mod2_text{
    width:auto;
    max-width:520px;
    color:#566073;
    font-family:PingFang SC, sans-serif;
    font-size:16px;
    font-weight:400;
    line-height:1.85;
}
body.page_about .about_story_visual{
    width:100%;
    min-height:320px;
    border-radius:16px;
    background:lightgray 50% / cover no-repeat;
    box-shadow:0 16px 40px rgba(15,35,80,.1);
    transition:transform .45s cubic-bezier(.22,1,.36,1), box-shadow .45s ease;
    overflow:hidden;
    position:relative;
}
body.page_about .about_story_visual::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(135deg, rgba(0,88,231,.08) 0%, transparent 50%);
    opacity:0;
    transition:opacity .35s ease;
}
body.page_about .about_story:hover .about_story_visual,
body.page_about .about_story.is-active-story .about_story_visual{
    transform:scale(1.02) translateY(-6px);
    box-shadow:0 28px 56px rgba(0,88,231,.18);
}
body.page_about .about_story:hover .about_story_visual::after,
body.page_about .about_story.is-active-story .about_story_visual::after{
    opacity:1;
}
body.page_about .about_story_visual--1{ background-image:url(/style/img/about_m2_1.png); }
body.page_about .about_story_visual--2{ background-image:url(/style/img/about_m2_2.jpg); }
body.page_about .about_story_visual--3{ background-image:url(/style/img/about_m2_3.jpg); }
body.page_about .about_story_visual--4{ background-image:url(/style/img/about_m2_4.jpg); }
body.page_about .about_story_visual--5{ background-image:url(/style/img/about_m2_5.jpg); }
body.page_about .about_story_visual--6{ background-image:url(/style/img/about_m2_6.jpg); }

body.page_about .about_license_links{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:22px;
}
body.page_about .about_license_btn{
    display:inline-flex;
    align-items:center;
    padding:10px 20px;
    border-radius:10px;
    border:1px solid #2B78F6;
    color:#0058E7;
    font-size:14px;
    font-weight:600;
    text-decoration:none;
    transition:background .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease;
}
body.page_about .about_license_btn:hover{
    background:#0058E7;
    color:#fff;
    transform:translateY(-2px);
    box-shadow:0 8px 20px rgba(0,88,231,.25);
}

@media (max-width: 1100px){
    body.page_about .about_culture_layout{
        grid-template-columns:200px minmax(0, 1fr);
        gap:28px;
    }
    body.page_about .about_intro_grid{
        gap:48px;
    }
    body.page_about .about_story{
        gap:40px;
        padding:40px 24px;
    }
}
@media (max-width: 900px){
    body.page_about .banner.about_banner{
        height:380px;
        min-height:320px;
        animation:none;
    }
    body.page_about .about_stats{
        margin-top:-32px;
    }
    body.page_about .about_stats_grid{
        grid-template-columns:repeat(2, 1fr);
        gap:16px;
        padding:20px 16px;
    }
    body.page_about .about_stat_card:nth-child(2){
        border-right:none;
    }
    body.page_about .about_stat_card{
        border-right:none;
        border-bottom:1px solid rgba(0,88,231,.08);
        padding-bottom:16px;
    }
    body.page_about .about_stat_card:nth-child(3),
    body.page_about .about_stat_card:nth-child(4){
        border-bottom:none;
        padding-bottom:8px;
    }
    body.page_about .about_culture_layout{
        grid-template-columns:1fr;
        grid-template-areas:
            "head"
            "nav"
            "stories";
    }
    body.page_about .about_culture_nav{
        position:relative;
        top:0;
        flex-direction:row;
        flex-wrap:nowrap;
        overflow-x:auto;
        -webkit-overflow-scrolling:touch;
        padding:12px;
        gap:8px;
        scrollbar-width:none;
    }
    body.page_about .about_culture_nav::-webkit-scrollbar{
        display:none;
    }
    body.page_about .about_nav_btn{
        flex:0 0 auto;
        min-width:140px;
        padding:10px 12px;
    }
    body.page_about .about_nav_btn.is-active{
        transform:none;
    }
    body.page_about .about_intro_grid,
    body.page_about .about_story{
        grid-template-columns:1fr;
    }
    body.page_about .about_story--reverse .about_story_visual{
        order:0;
    }
    body.page_about .about_intro{
        padding:56px 0 72px;
    }
    body.page_about .about_culture_head{
        padding:0 0 28px;
    }
    body.page_about .about_story{
        padding:32px 20px;
        margin-bottom:16px;
    }
    body.page_about .about_story_visual{
        min-height:240px;
    }
    body.page_about .about_scroll_hint{
        display:none;
    }
}