/* banner 开始 */
/* banner 开始 */
/* banner 开始 */
        
        .css_img_banner_wrap {
            position: relative; width: 100%; height: 600px;
            display: flex; flex-direction: column; align-items: center; justify-content: center; overflow: hidden; background-color: rgb(160, 174, 192);
            background-image: radial-gradient(circle at center, rgba(0,0,0,0) 20%, rgba(0,0,0,0.5) 100%);
        }

        .css_img_starry { 
            position: absolute; width: 100%; height: 100%; 
            background-image: 
                radial-gradient(1.2px 1.2px at 25% 15%, #fff 100%, transparent), 
                radial-gradient(2.2px 2.2px at 75% 65%, #fff 100%, transparent); 
            background-size: 200px 200px; -webkit-mask-image: radial-gradient(circle, black 25%, transparent 85%); mask-image: radial-gradient(circle, black 25%, transparent 85%); 
            animation: css_img_blink 5s infinite both;
        }

        .css_img_text_overlay { z-index: 999; text-align: center; color: #fff; margin-bottom: 40px; padding: 0 20px; animation: css_img_fadeInUp 1.2s ease-out both; }
        .css_img_main_title { font-size: 56px; letter-spacing: 12px; font-weight: 600; margin-bottom: 15px; }
        .css_img_sub_title { font-size: 20px; letter-spacing: 6px; opacity: 0.8; font-weight: 300; }

        .css_img_contact_icon { 
            width: 120px; height: 120px; border: 1px solid rgba(255,255,255,0.3); border-radius: 50%;
            display: flex; align-items: center; justify-content: center; background: rgba(255,255,255,0.05);
            backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); z-index: 100;
            /* CSS3：开启景深视差空间 */
            perspective: 1000px; animation: css_img_fadeInUp 1.2s ease-out 0.3s both;
        }

        .css_img_foundation_matrix {
            position: relative; width: 45px; height: 45px;
            /* CSS3：保留子元素3D空间渲染 */
            transform-style: preserve-3d;
            transform: rotateX(60deg) rotateZ(-45deg);
        }
        .css_img_foundation_matrix i {
            position: absolute; width: 100%; height: 100%; border: 2px solid rgba(255, 255, 255, 0.9); background: rgba(255, 255, 255, 0.12); border-radius: 6px; animation: css_img_block_growth 4s infinite ease-in-out; transform-style: preserve-3d;
        }
        .css_img_foundation_matrix i:nth-child(1) { --base-z: 0px; --base-s: 1; }
        .css_img_foundation_matrix i:nth-child(2) { --base-z: 18px; --base-s: 0.8; animation-delay: -1.3s; border-color: rgba(255,255,255,0.6); }
        .css_img_foundation_matrix i:nth-child(3) { --base-z: 36px; --base-s: 0.6; animation-delay: -2.6s; border-color: rgba(255,255,255,0.4); background: rgba(255, 255, 255, 0.25); }

        @keyframes css_img_block_growth {
            0%, 100% { transform: translateY(0) translateZ(var(--base-z, 0px)) scale(var(--base-s, 1)); box-shadow: 0 0 0px rgba(255,255,255,0); }
            50% { transform: translateY(-8px) translateZ(calc(var(--base-z, 0px) + 12px)) scale(calc(var(--base-s, 1) * 1.05)); box-shadow: 0 0 20px rgba(255,255,255,0.35); background-color: rgba(255, 255, 255, 0.2); }
        }

        @media (max-width: 1024px) { 
            .css_img_banner_wrap { height: 500px; } .css_img_main_title { font-size: 42px; } 
        }

        /* 手机端 280px 紧凑级联修改 */
        @media (max-width: 768px) { 
            .css_img_banner_wrap { height: 280px; } 
            .css_img_text_overlay { margin-bottom: 18px; padding: 0 15px; }
            .css_img_main_title { font-size: 26px; letter-spacing: 5px; margin-bottom: 6px; } 
            .css_img_sub_title { font-size: 12px; letter-spacing: 1.5px; line-height: 1.4; }
            .css_img_contact_icon { width: 54px; height: 54px; } 
            /* 关键点：对内部3D空间矩阵在小容器内实施缩放，防止溢出 */
            .css_img_foundation_matrix { transform: rotateX(60deg) rotateZ(-45deg) scale(0.5); }
        }

        @keyframes css_img_blink { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }
        @keyframes css_img_fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
/* banner 结束 */
/* banner 结束 */
/* banner 结束 */
 
 
 /* 整体区块上下留白 */
    .about_zb_box {
        /* padding: 0px 24px 60px 24px; */
        /* background-color: var(--color-gray-50); 极浅灰背景，凸显卡片层次 */
    }
    /* PC端容器尺寸 (复用您的设定) */
    .about_zb_box_con {
        /* max-width: 1600px;
        margin-left: auto;
        margin-right: auto;
        width: 100%; */
        /* padding: 0 24px;  增加左右内边距，让大屏不贴边 */
    }

    .about_zb_box_con_bread{
        position: relative;
        width: 100%;
        max-width: 1600px;
        margin: 0 auto;
    }

    .about_zb_box_con_breadbox{
        position: absolute;
        z-index: 998;
    }
        
        
        /* ----- 模块容器 —— 全幅深色背景，营造阔气感 ----- */
        .about_section {
            display: block;
            width: 100%;
            padding: 5rem 1.5rem 5rem;
            /* CSS3 属性：线性渐变背景，从深蓝灰到接近黑色，彰显高端制造气质 */
            background: linear-gradient(135deg, #0b1c34 0%, #132a45 40%, #0a1a2b 100%);
            color: var(--color-white);
            position: relative;
            overflow: hidden;
        }

        /* 背景装饰几何图形 (增加层次) */
        .about_section::before {
            content: "";
            position: absolute;
            top: -20%;
            right: -10%;
            width: 60%;
            height: 140%;
            background: radial-gradient(circle at 30% 40%, rgba(4, 84, 220, 0.15) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .about_section::after {
            content: "";
            position: absolute;
            bottom: -10%;
            left: -5%;
            width: 50%;
            height: 80%;
            background: radial-gradient(circle at 70% 60%, rgba(255, 255, 255, 0.03) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        /* 内容版心 —— 相对定位，位于装饰上方 */
        .about_container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: minmax(0, 1fr);
            /* max-width: 1280px; */
            margin: 0 auto;
            width: 100%;
            gap: 3.5rem;
        }

        /* ----- 头部超大标题区域 ----- */
        .about_header {
            text-align: center;
            margin-bottom: 0.5rem;
        }

        .about_supertitle {
            font-size: 1rem;
            font-weight: 500;
            letter-spacing: 4px;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 1rem;
            opacity: 0.9;
        }

        .about_main-title {
            font-size: 3.5rem;
            font-weight: 800;
            line-height: 1.2;
            color: white;
            margin-bottom: 1.5rem;
            letter-spacing: -0.02em;
        }

        /* 标题高亮 */
        .about_main-title .highlight {
            color: #0454dc;
            position: relative;
            display: inline-block;
        }

        .about_main-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 8px;
            left: 0;
            width: 100%;
            height: 12px;
            background: rgba(4, 84, 220, 0.25);
            z-index: -1;
            border-radius: 20px;
        }

        .about_intro-text {
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.2rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 400;
        }

        /* ----- 核心数据卡片 (彰显实力) ----- */
        .about_stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin: 1rem 0 1rem;
        }

        .about_stat-item {
            text-align: center;
            padding: 1.5rem 0.5rem;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform var(--transition-fast);
        }

        .about_stat-item:hover {
            transform: translateY(-6px);
            background: rgba(4, 84, 220, 0.08);
            border-color: rgba(4, 84, 220, 0.3);
        }

        .about_stat-number {
            font-size: 3.2rem;
            font-weight: 800;
            color: white;
            line-height: 1.2;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }

        .about_stat-label {
            font-size: 1rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* ----- 内容分栏：左图右文 (大气展示) ----- */
        .about_content-split {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 3.5rem;
            align-items: center;
            margin-top: 1rem;
        }

        /* 左侧图片区域 (多图或单图，可营造层次) */
        .about_media-group {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.2rem;
        }

        .about_media-main {
            grid-column: span 2;
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            /* CSS3 属性：aspect-ratio 防止塌陷 */
            aspect-ratio: 16 / 9;
            background: linear-gradient(145deg, #1e3a5f, #0f283f);
            box-shadow: 0 25px 40px -12px rgba(0, 0, 0, 0.4);
        }

        .about_media-secondary {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: linear-gradient(145deg, #1e3a5f, #0f283f);
            box-shadow: 0 15px 25px -8px rgba(0, 0, 0, 0.3);
        }

        .about_img {
            display: block;
            width: 100%;
            height: 100%;
            /* CSS3 属性：object-fit 保证图片裁剪填充 */
            object-fit: cover;
            transition: transform 0.5s ease;
            background-color: #1a2e4a;
        }

        .about_media-main:hover .about_img,
        .about_media-secondary:hover .about_img {
            transform: scale(1.05);
        }

        /* 图片占位伪元素 (显示科技感图标) */
        .about_media-main::after,
        .about_media-secondary::after {
            content: "——";
            position: absolute;
            bottom: 15px;
            right: 20px;
            font-size: 2.5rem;
            opacity: 0.3;
            color: white;
            pointer-events: none;
            z-index: 1;
        }

        /* 右侧文字描述 */
        .about_text-block {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .about_section-title {
            font-size: 2rem;
            font-weight: 700;
            color: white;
            line-height: 1.3;
        }

        .about_section-title .accent {
            color: #0454dc;
        }

        .about_description {
            font-size: 1.05rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.75);
        }

        .about_feature-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin: 0.5rem 0 1rem;
        }

        .about_feature-item {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .about_feature-icon {
            font-size: 1.5rem;
            color: #0454dc;
            min-width: 2rem;
        }

        .about_feature-text {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
        }

        .about_feature-text strong {
            color: white;
            font-weight: 600;
        }

        /* 阔气的行动按钮 */
        .about_btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            margin-top: 0.8rem;
        }

        .about_btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.6rem;
            padding: 0.9rem 2.2rem;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 50px;      /* 胶囊按钮，现代感 */
            transition: all var(--transition-fast);
            text-decoration: none;
            border: 1.5px solid transparent;
            cursor: pointer;
        }

        .about_btn-primary {
            background-color: #0454dc;
            color: white;
            box-shadow: 0 8px 20px rgba(4, 84, 220, 0.3);
        }

        .about_btn-primary:hover {
            background-color: #FFF;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(4, 84, 220, 0.4);
        }

        .about_btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.3);
            color: white;
        }

        .about_btn-outline:hover {
            border-color: #0454dc;
            background: rgba(4, 84, 220, 0.1);
            transform: translateY(-2px);
            color: #FFF;
        }

        .about_btn-arrow {
            font-size: 1.3rem;
            line-height: 1;
        }

        /* ==================== 新增：公司简介板块 (大气图文) ==================== */
        .about_profile-wrap {
            margin-top: 1.5rem;
        }

        .about_profile-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 3rem;
            align-items: center;
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--radius-xl);
            padding: 2.5rem 2.8rem;
            border: 1px solid rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(4px);
            box-shadow: 0 20px 30px -10px rgba(0, 0, 0, 0.3);
        }

        .about_profile-content {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }

        .about_profile-eyebrow {
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 2px;
            color: #0454dc;
            text-transform: uppercase;
        }

        .about_profile-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: white;
            line-height: 1.2;
        }

        .about_profile-desc {
            font-size: 1rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 0.5rem;
        }

        .about_profile-highlight {
            display: flex;
            gap: 1.5rem;
            margin-top: 1rem;
        }

        .about_highlight-item {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .about_highlight-num {
            font-size: 2rem;
            font-weight: 800;
            color: #0454dc;
        }

        .about_highlight-label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }

        /* 右侧图片 */
        .about_profile-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: linear-gradient(145deg, #1e3a5f, #0f283f);
            box-shadow: 0 25px 35px -10px rgba(0, 0, 0, 0.5);
        }

        .about_profile-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .about_profile-media:hover .about_profile-img {
            transform: scale(1.04);
        }

        .about_profile-media::after {
            content: "==";
            position: absolute;
            bottom: 20px;
            right: 25px;
            font-size: 2.8rem;
            opacity: 0.25;
            color: white;
            pointer-events: none;
        }

        /* ========== 平板适配 (max-width: 1024px) ========== */
        @media (max-width: 1024px) {
            .about_section {
                padding: 4rem 1.5rem;
            }
            .about_main-title {
                font-size: 2.8rem;
            }
            .about_stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .about_content-split {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .about_media-group {
                max-width: 700px;
                margin: 0 auto;
            }
            .about_profile-grid {
                grid-template-columns: 1fr;
                padding: 2rem;
                gap: 2rem;
            }
            .about_profile-media {
                max-width: 500px;
                margin: 0 auto;
            }
        }

        /* ========== 手机适配 (max-width: 768px) ========== */
        @media (max-width: 768px) {
            .about_section {
                padding: 3rem 1rem;
            }
            .about_main-title {
                font-size: 2.2rem;
            }
            .about_supertitle {
                font-size: 0.9rem;
                letter-spacing: 3px;
            }
            .about_intro-text {
                font-size: 1rem;
            }
            .about_stats-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .about_stat-number {
                font-size: 2.5rem;
            }
            .about_media-group {
                grid-template-columns: 1fr;
            }
            .about_media-main {
                grid-column: span 1;
            }
            .about_section-title {
                font-size: 1.7rem;
            }
            .about_btn {
                padding: 0.8rem 1.8rem;
                font-size: 0.95rem;
            }
            .about_profile-grid {
                padding: 1.5rem;
            }
            .about_profile-title {
                font-size: 1.8rem;
            }
            .about_profile-highlight {
                flex-direction: column;
                gap: 1rem;
            }
        }

        /* 全局过渡 */
        .about_stat-item, .about_btn, .about_media-main .about_img, .about_profile-media .about_profile-img {
            transition: all 0.25s ease;
        }