/* ===== 独立页基础样式 ===== */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; background: #fff; -webkit-font-smoothing: antialiased; }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        html { scroll-behavior: smooth; }

        /* ===== 顶部导航 ===== */
        .ent-nav {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 100;
            background: rgba(15,23,42,0.85);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .ent-nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
        .ent-logo { font-size: 21px; font-weight: 700; color: #fff; letter-spacing: 1px; white-space: nowrap; }
        .ent-menu { display: flex; gap: 30px; flex-shrink: 0; }
        .ent-menu a { font-size: 14px; color: rgba(255,255,255,0.75); transition: color .2s; white-space: nowrap; }
        .ent-menu a:hover { color: #fff; }

        /* 汉堡按钮（仅手机显示） */
        .ent-menu-btn { display: none; border: none; background: none; cursor: pointer; padding: 6px; }
        .ent-menu-btn span { display: block; width: 22px; height: 2px; background: #fff; margin: 5px 0; border-radius: 2px; transition: all .3s; }
        .ent-menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .ent-menu-btn.open span:nth-child(2) { opacity: 0; }
        .ent-menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        /* 锚点滚动时避开固定导航 */
        section[id] { scroll-margin-top: 70px; }

        /* ===== 顶部 Hero Banner ===== */
        .ent-hero {
            position: relative;
            min-height: 70vh;
            padding-top: 64px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 60%, #2563eb 120%);
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .ent-hero-content { position: relative; z-index: 2; padding: 0 20px; }
        .ent-hero-brand {
            display: inline-block;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 6px;
            color: #93c5fd;
            border: 1px solid rgba(147,197,253,0.35);
            border-radius: 50px;
            padding: 8px 24px;
            margin-bottom: 30px;
        }
        .ent-hero h1 {
            font-size: 56px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin: 0 0 20px;
            letter-spacing: 2px;
            text-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }
        .ent-hero .ent-slogan {
            font-size: 22px;
            color: rgba(255,255,255,0.9);
            font-weight: 300;
            letter-spacing: 2px;
            margin-bottom: 44px;
        }
        .ent-contact-btn {
            display: inline-block;
            padding: 16px 48px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            border-radius: 50px;
            box-shadow: 0 10px 30px rgba(37,99,235,0.4);
            transition: all .3s;
        }
        .ent-contact-btn:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(37,99,235,0.5); color: #fff; }
        .ent-hero-scroll { margin-top: 50px; color: rgba(255,255,255,0.4); font-size: 12px; letter-spacing: 3px; }

        /* ===== 通用区块标题 ===== */
        .section-title { text-align: center; margin-bottom: 60px; }
        .section-title .subtitle {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(37,99,235,0.08);
            color: #2563eb;
            font-size: 12px;
            font-weight: 600;
            border-radius: 50px;
            margin-bottom: 14px;
            letter-spacing: 3px;
        }
        .section-title h2 { font-size: 34px; font-weight: 700; color: #0f172a; margin: 0 0 12px; }
        .section-title p { color: #94a3b8; font-size: 15px; margin: 0; }

        /* ===== 产品展示 ===== */
        .ent-products { padding: 100px 0; background: #fff; }
        .ent-product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
        .ent-product-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid #eef2f7;
            box-shadow: 0 6px 24px rgba(15,23,42,0.05);
            transition: all .3s;
        }
        .ent-product-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(15,23,42,0.1); }
        .ent-product-card .pc-img { width: 100%; aspect-ratio: 4/3; object-fit: contain; display: block; background: #f1f5f9; padding: 8px; }
        .ent-product-card .pc-body { padding: 24px; }
        .ent-product-card h3 { font-size: 18px; font-weight: 600; color: #0f172a; margin: 0 0 10px; }
        .ent-product-card p { font-size: 14px; color: #64748b; line-height: 1.7; margin: 0; }
        .ent-empty { text-align: center; color: #94a3b8; font-size: 14px; padding: 40px 0; }

        /* ===== 公司简介 ===== */
        .ent-intro { padding: 100px 0; background: #f8fafc; }
        .ent-intro-card {
            max-width: 860px;
            margin: 0 auto;
            background: #fff;
            border-radius: 20px;
            padding: 50px 60px;
            box-shadow: 0 8px 30px rgba(15,23,42,0.06);
            text-align: center;
            position: relative;
        }
        .ent-intro-card .quote-mark { font-size: 64px; color: rgba(37,99,235,0.15); line-height: 1; margin-bottom: -10px; }
        .ent-intro-card p { font-size: 17px; color: #475569; line-height: 2; margin: 0; letter-spacing: 1px; }

        /* ===== 资质案例 ===== */
        .ent-cert { padding: 100px 0; background: #fff; }
        .ent-cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .ent-cert-card { text-align: center; }
        .ent-cert-card .cc-img-wrap {
            background: #f8fafc;
            border-radius: 12px;
            padding: 12px;
            border: 1px solid #eef2f7;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            aspect-ratio: 3/2;
            overflow: hidden;
        }
        .ent-cert-card img { width: 100%; height: 100%; object-fit: contain; border-radius: 6px; display: block; }
        .ent-cert-card h4 { font-size: 14px; color: #475569; font-weight: 500; margin: 0; }

        /* ===== 底部联系区 ===== */
        .ent-contact { padding: 100px 0 80px; background: linear-gradient(135deg, #0f172a, #1e3a5f); }
        .ent-contact .section-title h2 { color: #fff; }
        .ent-contact .section-title p { color: rgba(255,255,255,0.5); }
        .ent-contact .section-title .subtitle { background: rgba(147,197,253,0.12); color: #93c5fd; }
        .ent-contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
        .ent-contact-card {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 16px;
            padding: 40px 30px;
            text-align: center;
            transition: all .3s;
        }
        .ent-contact-card:hover { background: rgba(255,255,255,0.09); }
        .ent-contact-card .cc-icon {
            width: 56px; height: 56px;
            margin: 0 auto 18px;
            background: rgba(37,99,235,0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }
        .ent-contact-card h3 { font-size: 14px; color: rgba(255,255,255,0.5); font-weight: 500; margin: 0 0 12px; letter-spacing: 2px; }
        .ent-contact-card p { font-size: 17px; color: #fff; margin: 0; line-height: 1.6; word-break: break-all; }
        .ent-contact-card .cc-qrcode { max-width: 140px; border-radius: 8px; display: inline-block; }

        /* ===== 底部版权 ===== */
        .ent-copyright {
            text-align: center;
            padding: 20px 20px 28px;
            font-size: 12px;
            color: rgba(255,255,255,0.4);
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .ent-qr-trigger { cursor: pointer; }
        .ent-qr-trigger:hover { background: rgba(255,255,255,0.09); }

        /* ===== 微信二维码浮层 ===== */
        .ent-qr-mask { display: none; position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,0.65); align-items: center; justify-content: center; }
        .ent-qr-mask.show { display: flex; }
        .ent-qr-pop { background: #fff; border-radius: 16px; padding: 30px 34px; text-align: center; position: relative; width: 280px; }
        .ent-qr-pop img { width: 180px; height: 180px; border-radius: 8px; }
        .ent-qr-pop p { margin-top: 14px; font-size: 14px; color: #475569; line-height: 1.6; }
        .ent-qr-close { position: absolute; top: 10px; right: 12px; border: none; background: none; font-size: 18px; color: #94a3b8; cursor: pointer; line-height: 1; }

        /* ===== 响应式 ===== */
        @media (max-width: 900px) {
            .ent-hero { min-height: 60vh; }
            .ent-hero h1 { font-size: 34px; }
            .ent-hero .ent-slogan { font-size: 17px; }
            .ent-product-grid { gap: 16px; }
            .ent-cert-grid { gap: 16px; }
            .ent-contact-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
            .ent-contact-card { padding: 28px 14px; }
            .ent-contact-card .cc-icon { width: 46px; height: 46px; font-size: 20px; margin-bottom: 12px; }
            .ent-contact-card p { font-size: 14px; }
            .ent-intro-card { padding: 36px 24px; }
            .ent-products, .ent-intro, .ent-cert, .ent-contact { padding: 60px 0; }
        }
        @media (max-width: 560px) {
            .ent-nav-inner { height: 56px; }
            .ent-logo { font-size: 17px; max-width: 60%; overflow: hidden; text-overflow: ellipsis; flex-shrink: 1; }
            .ent-menu-btn { display: block; flex-shrink: 0; }
            .ent-menu {
                display: none;
                position: absolute;
                top: 56px; left: 0; right: 0;
                background: rgba(15,23,42,0.96);
                flex-direction: column;
                gap: 0;
                padding: 8px 0;
                border-bottom: 1px solid rgba(255,255,255,0.08);
                box-shadow: 0 12px 24px rgba(0,0,0,0.2);
            }
            .ent-menu.open { display: flex; }
            .ent-menu a { display: block; padding: 14px 24px; font-size: 15px; border-bottom: 1px solid rgba(255,255,255,0.06); }
            .ent-menu a:last-child { border-bottom: none; }
            .ent-hero { padding-top: 56px; }
            /* 手机版联系区：一行一个卡片，图标在左，右侧标题在上、内容在下 */
            .ent-contact-grid { grid-template-columns: 1fr; gap: 12px; }
            .ent-contact-card { display: flex; align-items: center; gap: 16px; text-align: left; padding: 18px 20px; }
            .ent-contact-card .cc-icon { margin: 0; width: 46px; height: 46px; font-size: 20px; flex-shrink: 0; }
            .ent-contact-card .cc-text { flex: 1; text-align: left; }
            .ent-contact-card h3 { margin: 0 0 4px; font-size: 13px; }
            .ent-contact-card p { font-size: 15px; line-height: 1.5; }
            .ent-product-grid { grid-template-columns: 1fr; }
            .ent-cert-grid { grid-template-columns: 1fr; }
        }