/* ===== Reset & Base ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { margin: 0 auto; font-size: 14px; font-family: "Microsoft YaHei", "微软雅黑", Arial, sans-serif; padding: 0; color: #333; background: #fff; padding-top: 101px; overflow-x: hidden; }
ul, li, dl, dd, h1, h2, h3, h4, h5, h6, form, p { padding: 0; margin: 0; }
ul { list-style: none; }
li { list-style: none; }
img { border: 0; max-width: 100%; }
a { color: #333; text-decoration: none; transition: color 0.3s; }
a:hover { color: #c00; text-decoration: none; }
.clearfix::after { content: ""; display: table; clear: both; }

/* ===== Container ===== */
.container { max-width: 1610px; margin: 0 auto; padding: 0 20px; }

/* ===== 1. Top Bar (Fixed) ===== */
.top-bar { width: 100%; height: 26px; background: #000; line-height: 26px; font-size: 12px; color: #999; position: fixed; top: 0; left: 0; z-index: 1000; }
.top-bar .container { display: flex; justify-content: flex-end; align-items: center; }
.top-bar a { color: #999; margin-left: 20px; font-size: 12px; transition: color 0.3s; }
.top-bar a:hover { color: #fff; }
.top-bar a img { width: 14px; height: 14px; vertical-align: middle; margin-right: 4px; }

/* ===== 2. Navigation (Fixed) ===== */
.navbar { width: 100%; height: 75px; background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.06); position: fixed; top: 26px; left: 0; z-index: 999; }
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.navbar .logo { flex-shrink: 0; }
.navbar .logo img { height: 55px; width: auto; }
.nav-menu { display: flex; align-items: center; gap: 0; }
.nav-menu li { position: relative; }
.nav-menu li a { display: block; padding: 0 22px; line-height: 75px; font-size: 14px; color: #000; transition: color 0.3s; white-space: nowrap; }
.nav-menu li a:hover, .nav-menu li a.active { color: #c00; }
.nav-menu li .dropdown { display: none; position: absolute; top: 75px; left: 0; background: #fff; min-width: 160px; box-shadow: 0 4px 12px rgba(0,0,0,0.1); z-index: 200; }
.nav-menu li:hover .dropdown { display: block; }
.nav-menu li .dropdown a { padding: 12px 20px; line-height: 1.5; font-size: 13px; border-bottom: 1px solid #f0f0f0; }
.nav-menu li .dropdown a:hover { color: #c00; background: #fafafa; }
.btn-consult { flex-shrink: 0; background: #c00; color: #fff !important; padding: 10px 28px; border-radius: 25px; font-size: 14px; transition: all 0.3s; border: 2px solid #c00; }
.btn-consult:hover { background: #fff; color: #c00 !important; }

/* Mobile menu toggle */
.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 10px; }
.menu-toggle span { width: 25px; height: 3px; background: #333; border-radius: 2px; transition: all 0.3s; }

/* ===== 3. Banner Carousel ===== */
.banner { width: 100%; height: 600px; position: relative; overflow: hidden; background: #000; }
.banner-slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 1s ease-in-out; }
.banner-slide.active { opacity: 1; }
.banner-slide img { width: 100%; height: 100%; object-fit: cover; }
.banner-canvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 2; pointer-events: none; }
.banner-content { position: absolute; top: 50%; left: 50%; right: auto; transform: translate(-50%, -50%); z-index: 3; color: #fff; text-align: center; max-width: 600px; }
.banner-content-left { left: 50%; right: auto; }
.banner-content-left .banner-text { color: #fff; }
.banner-content-left h2 { color: #fff; text-shadow: 0 2px 10px rgba(0,0,0,0.5); }
.banner-content-left p { color: #fff; text-shadow: 0 1px 5px rgba(0,0,0,0.3); }
.banner-text { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.banner-slide.active .banner-text { opacity: 1; transform: translateY(0); }
.banner-content h2 { font-size: 36px; font-weight: bold; margin-bottom: 15px; line-height: 1.4; text-shadow: 0 2px 10px rgba(0,0,0,0.5); }
.banner-content p { font-size: 18px; margin-bottom: 25px; line-height: 1.6; text-shadow: 0 1px 5px rgba(0,0,0,0.3); }
.banner-content .btn-consult-banner { display: inline-block; background: #c00; color: #fff; padding: 12px 35px; border-radius: 4px; font-size: 16px; transition: all 0.3s; }
.banner-content .btn-consult-banner:hover { background: #e00; transform: translateY(-2px); box-shadow: 0 4px 15px rgba(204,0,0,0.4); }
.banner-dots { position: absolute; bottom: 25px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; gap: 10px; }
.banner-dots span { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.4); cursor: pointer; transition: all 0.3s; }
.banner-dots span.active { background: #fff; transform: scale(1.2); }

/* ===== 4. Stats Bar (非通栏盒子，压横幅+层1) ===== */
.stats-bar { max-width: 1610px; width: calc(100% - 40px); margin: -45px auto 0; background: #F7F6FE; position: relative; z-index: 20; border-radius: 6px; box-shadow: 0 -4px 20px rgba(0,0,0,0.08); display: flex; align-items: center; justify-content: space-around; height: 90px; padding: 0 30px; }
.stat-item { text-align: center; flex: 1; border-right: 1px solid #e0dfe8; }
.stat-item:last-child { border-right: none; }
.stat-number { font-size: 32px; font-weight: bold; color: #c00; line-height: 1.2; }
.stat-number .suffix { font-size: 20px; }
.stat-label { font-size: 13px; color: #666; margin-top: 4px; }

/* ===== 5. Content Layer 1 - About ===== */
.content-layer1 { width: 100%; background: url('images/cen1.jpg') center center / cover no-repeat; padding: 80px 0; position: relative; }
.content-layer1 .container { display: flex; align-items: center; gap: 5%; }
.layer1-left { width: 40%; flex-shrink: 0; }
.layer1-left img { width: 100%; height: auto; display: block; border-radius: 4px; }
.layer1-right { width: 55%; }
.layer1-right .section-icon { margin-bottom: 15px; }
.layer1-right .section-icon img { height: 50px; width: auto; }
.layer1-right h2 { font-size: 36px; font-weight: bold; color: #222; margin-bottom: 20px; font-style: italic; }
.layer1-right p { font-size: 15px; color: #555; line-height: 2.2; margin-bottom: 25px; }
.btn-learn-more { display: inline-block; background: #c00; color: #fff; padding: 12px 35px; border-radius: 4px; font-size: 14px; transition: all 0.3s; }
.btn-learn-more:hover { background: #e00; transform: translateY(-2px); box-shadow: 0 4px 15px rgba(204,0,0,0.4); color: #fff; }

/* ===== 6. Content Layer 2 - Services ===== */
.content-layer2 { width: 100%; background: url('images/cen2.jpg') center center / cover no-repeat; padding: 80px 0; text-align: center; }
.content-layer2 .section-title { font-size: 26px; font-weight: bold; color: #222; margin-bottom: 12px; }
.content-layer2 .section-desc { font-size: 14px; color: #666; margin-bottom: 50px; max-width: 700px; margin-left: auto; margin-right: auto; }
.service-cards { display: flex; gap: 30px; justify-content: center; }
.service-card { flex: 1; max-width: 510px; border-radius: 8px; padding: 40px 30px; text-align: left; transition: transform 0.3s, box-shadow 0.3s; }
.service-card:hover { transform: translateY(-5px); box-shadow: 0 8px 30px rgba(0,0,0,0.1); }
.service-card:nth-child(1) { background: linear-gradient(135deg, #CBDBFF 0%, #888DF7 100%); }
.service-card:nth-child(2) { background: linear-gradient(135deg, #E1F8F7 0%, #4350AB 100%); }
.service-card:nth-child(3) { background: linear-gradient(135deg, #F9E4E4 0%, #FC845B 100%); }
.service-card .card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 15px; }
.service-card .card-icon { margin-bottom: 0; }
.service-card .card-icon img { height: 42px; width: 42px; object-fit: contain; }
.service-card h3 { font-size: 18px; font-weight: bold; color: #222; margin-bottom: 0; }
.service-card p { font-size: 14px; color: #666; line-height: 1.7; margin-bottom: 20px; }
.service-card .btn-detail { display: inline-block; padding: 8px 25px; border: 1px solid #ddd; border-radius: 20px; font-size: 13px; color: #666; transition: all 0.3s; }
.service-card .btn-detail:hover { border-color: #c00; color: #c00; }

/* ===== 7. Content Layer 3 - Solutions ===== */
.content-layer3 { width: 100%; background: url('images/cen3.jpg') center center / cover no-repeat; padding: 80px 0; text-align: center; }
.content-layer3 .section-title { font-size: 26px; font-weight: bold; color: #fff; margin-bottom: 12px; }
.content-layer3 .section-desc { font-size: 14px; color: rgba(255,255,255,0.7); margin-bottom: 50px; max-width: 700px; margin-left: auto; margin-right: auto; }
.solution-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
.solution-item { background: rgba(0,0,0,0.4); border-radius: 8px; padding: 30px; display: flex; align-items: flex-start; gap: 20px; text-align: left; transition: background 0.3s; }
.solution-item:hover { background: rgba(0,0,0,0.55); }
.solution-item .sol-icon { flex-shrink: 0; }
.solution-item .sol-icon img { width: 50px; height: 50px; border-radius: 50%; }
.solution-item h3 { font-size: 18px; font-weight: bold; color: #fff; margin-bottom: 10px; }
.solution-item p { font-size: 14px; color: rgba(255,255,255,0.8); line-height: 1.6; }

/* ===== 8. Content Layer 4 - Partners ===== */
.content-layer4 { width: 100%; background: #F1F4FA; padding: 80px 0; text-align: center; }
.content-layer4 .section-title { font-size: 26px; font-weight: bold; color: #222; margin-bottom: 12px; }
.content-layer4 .section-desc { font-size: 14px; color: #666; margin-bottom: 50px; max-width: 700px; margin-left: auto; margin-right: auto; }
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 20px; }
.partner-grid img { width: 150px; height: 65px; object-fit: contain; background: #fff; padding: 8px 15px; border-radius: 4px; transition: transform 0.3s, box-shadow 0.3s; }
.partner-grid img:hover { transform: translateY(-3px); box-shadow: 0 4px 15px rgba(0,0,0,0.1); }

/* ===== 9. Content Layer 5 - News ===== */
.content-layer5 { width: 100%; background: url('images/cen4.jpg') center bottom no-repeat; padding: 80px 0; text-align: center; }
.content-layer5 .section-title { font-size: 26px; font-weight: bold; color: #222; margin-bottom: 12px; }
.content-layer5 .section-desc { font-size: 14px; color: #666; margin-bottom: 50px; max-width: 700px; margin-left: auto; margin-right: auto; }
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }
.news-card { background: #fff; border-radius: 8px; overflow: hidden; text-align: left; transition: transform 0.3s, box-shadow 0.3s; }
.news-card:hover { transform: translateY(-5px); box-shadow: 0 8px 30px rgba(0,0,0,0.12); }
.news-card .news-img { width: 100%; height: 200px; overflow: hidden; }
.news-card .news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.news-card:hover .news-img img { transform: scale(1.05); }
.news-card .news-body { padding: 20px; }
.news-card .news-date { font-size: 12px; color: #c00; margin-bottom: 8px; }
.news-card h3 { font-size: 15px; font-weight: bold; color: #222; margin-bottom: 10px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card p { font-size: 13px; color: #888; line-height: 1.6; margin-bottom: 15px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-card .read-more { font-size: 13px; color: #c00; transition: all 0.3s; display: inline-flex; align-items: center; gap: 5px; }
.news-card .read-more:hover { color: #e00; gap: 10px; }

/* ===== 10. Content Layer 6 - Contact ===== */
.content-layer6 { width: 100%; padding: 0; position: relative; z-index: 15; margin-top: -40px; margin-bottom: -40px; }
.content-layer6 .layer6-inner { max-width: 1610px; margin: 0 auto; padding: 0 20px; }
.content-layer6 .layer6-bg { background: url('images/cen5.jpg') center center / cover no-repeat; border-radius: 8px; padding: 50px 40px; display: flex; align-items: center; justify-content: space-between; }
.layer6-text h3 { font-size: 26px; font-weight: bold; color: #fff; text-shadow: 0 2px 8px rgba(0,0,0,0.3); }
.layer6-form { display: flex; align-items: center; gap: 15px; }
.layer6-form input { width: 320px; padding: 14px 20px; border: none; border-radius: 4px; font-size: 14px; outline: none; }
.layer6-form input:focus { box-shadow: 0 0 0 2px rgba(255,255,255,0.5); }
.layer6-form button { padding: 14px 35px; background: #fff; color: #333; border: none; border-radius: 4px; font-size: 15px; font-weight: bold; cursor: pointer; transition: all 0.3s; white-space: nowrap; }
.layer6-form button:hover { background: #f0f0f0; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); }

/* ===== 内页横幅 ===== */
.neiban { position: relative; width: 100%; height: auto; overflow: hidden; }
.neiban img { display: block; width: 100%; height: auto; }
.neiban .nei1 { position: absolute; top: 0; left: 0; right: 0; bottom: 0; width: 100%; max-width: 1610px; margin: 0 auto; padding: 0 20px; box-sizing: border-box; display: flex; flex-direction: column; justify-content: center; }
.neiban .nei1 h2 { font-size: 32px; font-weight: bold; color: #000; margin-bottom: 12px; line-height: 1.4; }
.neiban .nei1 p { font-size: 14px; color: #666; line-height: 1.6; }

/* ===== 11. Copyright / Footer ===== */
.footer { width: 100%; background: #221E1F; padding: 100px 0 30px; position: relative; z-index: 1; }
.footer .container { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; flex-wrap: wrap; }
.footer-logo { flex-shrink: 0; }
.footer-logo img { height: 70px; width: auto; margin-bottom: 15px; }
.footer-logo .footer-phone { font-size: 22px; color: #4CAF50; font-weight: bold; margin-bottom: 5px; }
.footer-logo .footer-hours { font-size: 13px; color: #999; }
.footer-links h4 { font-size: 16px; color: #fff; margin-bottom: 15px; }
.footer-links ul li { margin-bottom: 8px; }
.footer-links ul li a { font-size: 13px; color: #999; transition: color 0.3s; }
.footer-links ul li a:hover { color: #fff; }
.footer-contact h4 { font-size: 16px; color: #fff; margin-bottom: 15px; }
.footer-contact p { font-size: 13px; color: #999; margin-bottom: 8px; line-height: 1.6; }
.footer-qr { text-align: center; flex-shrink: 0; }
.footer-qr img { width: 110px; height: 110px; border-radius: 4px; margin-bottom: 8px; }
.footer-qr p { font-size: 12px; color: #999; }

/* ===== 12. Bottom Bar ===== */
.bottom-bar { width: 100%; height: 50px; background: #000; display: flex; align-items: center; justify-content: center; }
.bottom-bar .container { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.bottom-bar p { font-size: 14px; color: #999; }
.bottom-bar a { font-size: 14px; color: #999; margin-left: 20px; transition: color 0.3s; }
.bottom-bar a:hover { color: #fff; }

/* ===== WeChat Modal ===== */
.wechat-modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.55); z-index: 2000; align-items: center; justify-content: center; }
.wechat-modal-overlay.show { display: flex; }
.wechat-modal { background: #fff; border-radius: 12px; padding: 40px 36px 32px; text-align: center; position: relative; width: 320px; max-width: 90vw; box-shadow: 0 20px 60px rgba(0,0,0,0.25); animation: modalIn 0.28s ease; }
@keyframes modalIn { from { opacity: 0; transform: scale(0.88) translateY(20px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.wechat-modal .modal-close { position: absolute; top: 12px; right: 16px; font-size: 22px; color: #aaa; cursor: pointer; line-height: 1; border: none; background: none; padding: 4px 8px; }
.wechat-modal .modal-close:hover { color: #333; }
.wechat-modal .modal-icon { width: 56px; height: 56px; margin: 0 auto 16px; background: #07C160; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.wechat-modal .modal-icon svg { width: 32px; height: 32px; fill: #fff; }
.wechat-modal h3 { font-size: 18px; color: #222; margin-bottom: 8px; }
.wechat-modal .modal-tip { font-size: 13px; color: #888; margin-bottom: 20px; line-height: 1.6; }
.wechat-modal .wechat-id-box { display: flex; align-items: center; justify-content: center; gap: 10px; background: #f5f5f5; border-radius: 6px; padding: 12px 16px; margin-bottom: 20px; }
.wechat-modal .wechat-id { font-size: 20px; font-weight: bold; color: #222; letter-spacing: 1px; user-select: all; }
.wechat-modal .btn-copy { padding: 6px 16px; background: #07C160; color: #fff; border: none; border-radius: 4px; font-size: 13px; cursor: pointer; white-space: nowrap; transition: background 0.2s; }
.wechat-modal .btn-copy:hover { background: #06ad56; }
.wechat-modal .btn-copy.copied { background: #aaa; }
.wechat-modal .modal-footer { font-size: 12px; color: #bbb; }

/* ===== Back to Top ===== */
.back-to-top { position: fixed; right: 20px; bottom: 80px; width: 45px; height: 45px; background: #c00; color: #fff; border: none; border-radius: 4px; font-size: 20px; cursor: pointer; display: none; align-items: center; justify-content: center; z-index: 999; transition: background 0.3s; }
.back-to-top:hover { background: #e00; }

/* ===== Scroll Animations ===== */
.anim-element { opacity: 0; transition: opacity 0.8s ease, transform 0.8s ease; }
.anim-up { transform: translateY(60px); }
.anim-left { transform: translateX(-80px); }
.anim-right { transform: translateX(80px); }
.anim-up.anim-visible, .anim-left.anim-visible, .anim-right.anim-visible { opacity: 1; transform: translate(0, 0); }

/* ===== 内页内容区（.necen） ===== */
/* Part1：图文介绍 */
.necen-part1 { padding: 60px 0; }
.necen-part1 .container { display: flex; align-items: stretch; gap: 0; padding-left: 20px; padding-right: 20px; }
.necen-p1-left { width: 40%; flex-shrink: 0; position: relative; overflow: hidden; min-height: 380px; border-radius: 4px 0 0 4px; }
.necen-p1-slider { position: absolute; inset: 0; }
.necen-p1-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 0.8s ease; }
.necen-p1-slide.active { opacity: 1; }
.necen-p1-slide img { width: 100%; height: 100%; object-fit: cover; display: block; max-width: none; }
.necen-p1-dots { position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 2; }
.necen-p1-dots span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.5); cursor: pointer; transition: background 0.3s; display: block; }
.necen-p1-dots span.active { background: #fff; }
.necen-p1-right { flex: 1; background: #f5f5f5; padding: 40px 50px; box-sizing: border-box; border-radius: 0 4px 4px 0; }
.necen-p1-right h3 { font-size: 26px; font-weight: bold; color: #222; margin-bottom: 14px; line-height: 1.4; }
.necen-sec-line { width: 36px; height: 3px; background: #0066CC; margin-bottom: 28px; }
.necen-feature { display: flex; gap: 18px; margin-bottom: 26px; align-items: flex-start; }
.necen-feature:last-child { margin-bottom: 0; }
.nf-icon { width: 46px; height: 46px; flex-shrink: 0; background: #0066CC; border-radius: 6px; display: flex; align-items: center; justify-content: center; }
.nf-icon svg { width: 24px; height: 24px; fill: #fff; }
.nf-text h4 { font-size: 14px; font-weight: bold; color: #222; margin-bottom: 8px; line-height: 1.5; }
.nf-text p { font-size: 13px; color: #666; line-height: 1.8; margin: 0; }
/* Part2：三重机制 */
.necen-part2 { padding: 70px 0; }
.necen-title { font-size: 28px; font-weight: bold; color: #222; text-align: center; margin-bottom: 14px; }
.necen-titlea em { font-style: normal; color: #f90; font-size: 36px; }
.necen-titlea { font-size: 28px; font-weight: bold; color: #fff; text-align: center; margin-bottom: 14px; }
.necen-sec-line-c { width: 36px; height: 3px; background: #f90; margin: 0 auto 50px; }
.necen-sec-line-ca { width: 36px; height: 3px; background: #06c; margin: 0 auto 50px; }
.necen-cards { display: flex; gap: 24px; }
.necen-card { flex: 1; background: #f5f5f5; border-radius: 8px; padding: 40px 30px; box-sizing: border-box; }
.nc-icon { width: 58px; height: 58px; background: #0066CC; border-radius: 6px; display: flex; align-items: center; justify-content: center; margin-bottom: 22px; }
.nc-icon svg { width: 30px; height: 30px; fill: #fff; }
.necen-card h4 { font-size: 16px; font-weight: bold; color: #222; margin-bottom: 14px; }
.necen-card p { font-size: 13px; color: #666; line-height: 1.9; margin: 0; }
/* Part3：4步流程 */
.necen-part3 { padding: 70px 0 80px;  background-color: #000; background-image: url(images/hbja.jpg); background-repeat: no-repeat; background-position: center top; background-size: 100% auto;}
.necen-steps { display: flex; align-items: flex-start; }
.necen-step { flex: 1; text-align: center; padding: 0 10px; }
.necen-step h4 { font-size: 15px; font-weight: bold; color: #f90; margin-bottom: 18px; }
.necen-step-conn { display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.necen-step-conn .ns-line { flex: 1; height: 1px; background: #ccc; }
.necen-step-conn .ns-dot { width: 12px; height: 12px; background: #f90; border-radius: 50%; flex-shrink: 0; }
.necen-step:first-child .necen-step-conn .ns-line:first-child { visibility: hidden; }
.necen-step:last-child .necen-step-conn .ns-line:last-child { visibility: hidden; }
.necen-step .ns-vline { width: 1px; height: 28px; background: #ccc; margin: 0 auto 14px; }
.necen-step p { font-size: 13px; color: #eee; line-height: 1.8; margin: 0; }
/* necen 响应式 */
@media (max-width: 900px) {
  .necen-part1 .container { flex-direction: column; }
  .necen-p1-left { width: 100%; min-height: 260px; border-radius: 4px 4px 0 0; }
  .necen-p1-right { border-radius: 0 0 4px 4px; padding: 30px 24px; }
  .necen-p1-right h3 { font-size: 21px; }
}
@media (max-width: 768px) {
  .necen-part1 { padding: 30px 0; }
  .necen-part2, .necen-part3 { padding: 40px 0; }
  .necen-title { font-size: 22px; }
  .necen-title em { font-size: 28px; }
  .necen-sec-line-c { margin-bottom: 30px; }
  .necen-cards { flex-direction: column; gap: 16px; }
  .necen-steps { flex-direction: column; gap: 20px; }
  .necen-step { padding: 0; }
  .necen-step-conn { display: none; }
  .necen-step .ns-vline { display: none; }
  .necen-step h4 { margin-bottom: 8px; }
  .necen-card { padding: 28px 20px; }
}

/* ===== 内页内容区（.neecen）行业资讯 ===== */
.neecen { width: 100%; padding: 60px 0; }
.neecen-inner { max-width: 1610px; margin: 0 auto; padding: 0 20px; box-sizing: border-box; }
.neecen-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px 28px; }
.neecen-card { display: flex; flex-direction: column; color: inherit; text-decoration: none; }
.neecen-card .nc-img { position: relative; width: 100%; padding-top: 56.25%; overflow: hidden; background: #f0f0f0; }
.neecen-card .nc-img img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; max-width: none; object-fit: cover; transition: transform 0.4s ease; display: block; }
.neecen-card:hover .nc-img img { transform: scale(1.06); }
.neecen-card .nc-body { padding: 18px 0 0; flex: 1; display: flex; flex-direction: column; }
.nc-title { font-size: 16px; font-weight: bold; color: #222; margin-bottom: 12px; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color 0.3s; }
.neecen-card:hover .nc-title { color: #2a8c4a; }
.nc-desc { font-size: 13px; color: #666; line-height: 1.8; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 16px; }
.nc-arrow { display: block; text-align: right; font-size: 18px; color: #bbb; transition: color 0.3s; }
.neecen-card:hover .nc-arrow { color: #2a8c4a; }
@media (max-width: 900px) {
  .neecen-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}
@media (max-width: 768px) {
  .neecen { padding: 30px 0; }
  .neecen-inner { padding: 0 12px; }
  .neecen-grid { grid-template-columns: 1fr; gap: 20px; }
}

/* ===== 内页内容区（.nedcen） ===== */
.nedcen { width: 100%; padding: 60px 0; }
.nedcen-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #e8e8e8; border-left: 1px solid #e8e8e8; }
.nedcen-item { border-right: 1px solid #e8e8e8; border-bottom: 1px solid #e8e8e8; padding: 40px 30px 22px; box-sizing: border-box; }
.ni-logo { height: 160px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; overflow: hidden; }
.ni-logo img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; display: block; transition: transform 0.35s ease; }
.nedcen-item:hover .ni-logo img { transform: scale(1.1); }
.ni-name { font-size: 13px; color: #888; line-height: 1.4; text-align: center;}
@media (max-width: 900px) {
  .nedcen-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nedcen { padding: 30px 0; }
  .nedcen-item { padding: 24px 20px 16px; }
  .ni-logo { height: 110px; margin-bottom: 10px; }
}

/* ===== 内页内容区（.neccen） ===== */
.neccen { width: 100%; padding: 70px 0; }
.neccen-header { text-align: center; margin-bottom: 50px; }
.neccen-htitle { font-size: 28px; font-weight: bold; color: #222; margin-bottom: 14px; }
.neccen-hline { width: 28px; height: 3px; background: #333; margin: 0 auto; }
.neccen-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.neccen-card { background: #f2f2f2; border-radius: 12px; padding: 36px 32px; box-sizing: border-box; }
.neccen-card-top { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; }
.nc-sq-icon { width: 50px; height: 50px; flex-shrink: 0; background: #2a8c4a; border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.nc-sq-icon svg { width: 26px; height: 26px; fill: #fff; }
.nc-card-title { font-size: 16px; font-weight: bold; color: #222; }
.nc-card-text { font-size: 13px; color: #666; line-height: 1.9; margin: 0; }
@media (max-width: 768px) {
  .neccen { padding: 40px 0; }
  .neccen-htitle { font-size: 22px; }
  .neccen-header { margin-bottom: 30px; }
  .neccen-grid { grid-template-columns: 1fr; }
  .neccen-card { padding: 24px 20px; }
}

/* ===== 内页内容区（.nebcen） ===== */
.nebcen { width: 100%; }
.nebcen-section { padding: 70px 0; }
.nebcen-section:nth-child(even) { background: #fafafa; }
.nebcen-header { text-align: center; margin-bottom: 50px; }
.nebcen-htitle { font-size: 26px; font-weight: bold; color: #222; margin-bottom: 14px; }
.nebcen-hline-dual { width: 72px; height: 3px; background: linear-gradient(to right, #5b6ef9 50%, #f5a623 50%); margin: 0 auto; }
.nebcen-icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px 24px; }
.nebcen-icon-card { text-align: center; }
.nb-circle-icon { width: 90px; height: 90px; border-radius: 50%; background: linear-gradient(135deg, #e1d5f7 0%, #9575cd 55%, #ce93d8 100%); display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.nb-circle-icon svg { width: 44px; height: 44px; fill: #fff; }
.nb-icon-title { font-size: 15px; font-weight: bold; color: #222; margin-bottom: 10px; }
.nb-icon-text { font-size: 13px; color: #777; line-height: 1.8; }
.nebcen-qa-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.nebcen-qa-card { background: #fff; border-radius: 8px; padding: 36px 30px; box-shadow: 0 2px 16px rgba(0,0,0,0.07); box-sizing: border-box; }
.nb-qa-title { font-size: 15px; font-weight: bold; color: #222; text-align: center; margin-bottom: 20px; line-height: 1.6; }
.nb-qa-text { font-size: 13px; color: #888; line-height: 1.9; margin: 0; }
@media (max-width: 900px) {
  .nebcen-icon-grid { grid-template-columns: repeat(2, 1fr); }
  .nebcen-qa-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nebcen-section { padding: 40px 0; }
  .nebcen-htitle { font-size: 20px; }
  .nebcen-header { margin-bottom: 30px; }
  .nebcen-icon-grid { gap: 24px; }
  .nebcen-qa-grid { grid-template-columns: 1fr; }
  .nebcen-qa-card { padding: 24px 20px; }
}

/* ===== 内页内容区（.neacen） ===== */
.neacen { width: 100%; }
.neacen-section { padding: 70px 0; }
.neacen-section:nth-child(even) { background: #fafafa; }
.neacen-header { text-align: center; margin-bottom: 48px; }
.neacen-htitle { font-size: 28px; font-weight: bold; color: #222; margin-bottom: 10px; line-height: 1.4; }
.neacen-hline { width: 36px; height: 3px; background: #0066cc; margin: 0 auto 14px; }
.neacen-hdesc { font-size: 14px; color: #666; line-height: 1.8; }
.neacen-grid { display: grid; gap: 24px; }
.neacen-grid.col2 { grid-template-columns: repeat(2, 1fr); }
.neacen-grid.col3 { grid-template-columns: repeat(3, 1fr); }
.neacen-grid.col4 { grid-template-columns: repeat(4, 1fr); }
.neacen-grid.col5 { grid-template-columns: repeat(5, 1fr); }
.neacen-card { background: #f5f5f5; border-radius: 8px; padding: 28px; box-sizing: border-box; }
.na-icon { width: 42px; height: 42px; background: #0066cc; border-radius: 6px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; flex-shrink: 0; }
.na-icon svg { width: 22px; height: 22px; fill: #fff; }
.na-title { font-size: 15px; font-weight: bold; color: #222; margin-bottom: 10px; }
.na-text { font-size: 13px; color: #666; line-height: 1.9; margin: 0; }
@media (max-width: 900px) {
  .neacen-grid.col4 { grid-template-columns: repeat(2, 1fr); }
  .neacen-grid.col5 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .neacen-section { padding: 40px 0; }
  .neacen-htitle { font-size: 22px; }
  .neacen-header { margin-bottom: 28px; }
  .neacen-grid.col2, .neacen-grid.col3, .neacen-grid.col4, .neacen-grid.col5 { grid-template-columns: 1fr; }
}

/* ===== 内页内容区（.nefcen）关于恒庆 ===== */
.nefcen { width: 100%; }
.nefcen-inner { max-width: 1610px; margin: 0 auto; padding: 0 20px; box-sizing: border-box; }

/* Part1：企业简介 */
.nefcen-intro { padding: 70px 0 50px; }
.nefcen-intro-wrap { display: flex; align-items: center; gap: 60px; }
.nefcen-intro-left { flex: 1; min-width: 0; }
.nefcen-intro-label { font-size: 13px; color: #2a8c4a; letter-spacing: 2px; margin-bottom: 12px; font-weight: 500; }
.nefcen-intro-title { font-size: 30px; font-weight: bold; color: #222; margin-bottom: 24px; line-height: 1.4; }
.nefcen-intro-text { font-size: 14px; color: #666; line-height: 2; }
.nefcen-intro-right { width: 42%; flex-shrink: 0; }
.nefcen-intro-right img { width: 100%; height: auto; display: block; border-radius: 8px; }

/* Part2：数据统计栏 */
.nefcen-stats { padding: 0 0 70px; }
.nefcen-stats-bar { display: flex; border: 1px solid #e0e0e0; border-radius: 8px; overflow: hidden; }
.nefcen-stat-item { flex: 1; text-align: center; padding: 36px 20px; border-right: 1px solid #e0e0e0; }
.nefcen-stat-item:last-child { border-right: none; }
.nefcen-stat-number { font-size: 38px; font-weight: bold; color: #c00; line-height: 1.2; margin-bottom: 8px; }
.nefcen-stat-number .suffix { font-size: 24px; }
.nefcen-stat-label { font-size: 13px; color: #888; line-height: 1.5; }

/* Part3：企业发展历程时间线 */
.nefcen-timeline { padding: 70px 0; background-color: #000; background-image: url(images/hbj.jpg); background-repeat: no-repeat; background-position: center bottom; background-size: 100% auto;}
.nefcen-tl-header { text-align: center; margin-bottom: 50px; }
.nefcen-tl-title { font-size: 28px; font-weight: bold; color: #fff; margin-bottom: 10px; }
.nefcen-tl-desc { font-size: 14px; color: #fff; }
.nefcen-tl-wrap { position: relative; max-width: 900px; margin: 0 auto; padding: 20px 0; }
.nefcen-tl-line { position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; background: #ddd; transform: translateX(-50%); }
.nefcen-tl-item { position: relative; display: flex; align-items: flex-start; margin-bottom: 40px; }
.nefcen-tl-item:last-child { margin-bottom: 0; }
.nefcen-tl-dot { position: absolute; left: 50%; top: 24px; width: 36px; height: 36px; border-radius: 50%; background: #2a8c4a; display: flex; align-items: center; justify-content: center; transform: translateX(-50%); z-index: 2; }
.nefcen-tl-dot svg { width: 18px; height: 18px; fill: #fff; }
.nefcen-tl-item:last-child .nefcen-tl-dot { background: #f5a623; }
.nefcen-tl-card { width: calc(50% - 40px); background: #fff; border-radius: 8px; padding: 28px 24px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); box-sizing: border-box; position: relative; }
.nefcen-tl-item:nth-of-type(odd) .nefcen-tl-card { margin-right: auto; }
.nefcen-tl-item:nth-of-type(even) .nefcen-tl-card { margin-left: auto; }
.nefcen-tl-badge { position: absolute; top: -14px; padding: 4px 16px; border-radius: 20px; font-size: 12px; font-weight: bold; color: #fff; white-space: nowrap; z-index: 3; }
.nefcen-tl-item:nth-of-type(odd) .nefcen-tl-badge { right: -10px; }
.nefcen-tl-item:nth-of-type(even) .nefcen-tl-badge { left: -10px; }
.nefcen-tl-item:not(:last-child) .nefcen-tl-badge { background: #c00; }
.nefcen-tl-item:last-child .nefcen-tl-badge { background: #f5a623; }
.nefcen-tl-card h4 { font-size: 16px; font-weight: bold; color: #222; margin-bottom: 12px; text-align: right; }
.nefcen-tl-item:nth-of-type(even) .nefcen-tl-card h4 { text-align: left; }
.nefcen-tl-card p { font-size: 13px; color: #666; line-height: 1.9; margin: 0; text-align: right; }
.nefcen-tl-item:nth-of-type(even) .nefcen-tl-card p { text-align: left; }

/* Part4：团队介绍 */
.nefcen-team { padding: 70px 0; }
.nefcen-team-header { text-align: center; margin-bottom: 40px; }
.nefcen-team-title { font-size: 28px; font-weight: bold; color: #222; margin-bottom: 10px; }
.nefcen-team-desc { font-size: 14px; color: #888; }
.nefcen-team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.nefcen-team-card { background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.nt-img { width: 100%; height: 200px; overflow: hidden; position: relative; }
.nt-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s; }
.nefcen-team-card:hover .nt-img img { transform: scale(1.05); }
.nt-img-icon { position: absolute; bottom: 12px; left: 12px; width: 32px; height: 32px; background: rgba(42,140,74,0.85); border-radius: 6px; display: flex; align-items: center; justify-content: center; }
.nt-img-icon svg { width: 18px; height: 18px; fill: #fff; }
.nt-body { padding: 20px; }
.nt-name { font-size: 16px; font-weight: bold; color: #222; margin-bottom: 10px; }
.nt-text { font-size: 13px; color: #666; line-height: 1.8; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.nt-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.nt-tag { font-size: 12px; color: #2a8c4a; background: #f0f9f2; padding: 4px 10px; border-radius: 4px; white-space: nowrap; }

/* nefcen 响应式 */
@media (max-width: 900px) {
  .nefcen-intro-wrap { flex-direction: column; gap: 30px; }
  .nefcen-intro-right { width: 100%; }
  .nefcen-stats-bar { flex-wrap: wrap; }
  .nefcen-stat-item { flex: 1 1 50%; border-bottom: 1px solid #e0e0e0; }
  .nefcen-stat-item:nth-child(even), .nefcen-stat-item:last-child { border-bottom: none; }
  .nefcen-team-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nefcen-intro { padding: 40px 0 30px; }
  .nefcen-intro-title { font-size: 22px; }
  .nefcen-intro-text { font-size: 13px; line-height: 1.8; }
  .nefcen-stats { padding: 0 0 40px; }
  .nefcen-stat-item { flex: 1 1 100%; border-right: none !important; }
  .nefcen-stat-number { font-size: 30px; }
  .nefcen-timeline { padding: 40px 0; }
  .nefcen-tl-title { font-size: 22px; }
  .nefcen-tl-header { margin-bottom: 30px; }
  .nefcen-tl-line { left: 20px; }
  .nefcen-tl-item { flex-direction: column; padding-left: 50px; }
  .nefcen-tl-dot { left: 20px; top: 0; }
  .nefcen-tl-card { width: 100%; margin-left: 0 !important; margin-right: 0 !important; }
  .nefcen-tl-badge { left: 0 !important; right: auto !important; }
  .nefcen-tl-card h4, .nefcen-tl-card p { text-align: left !important; }
  .nefcen-team { padding: 40px 0; }
  .nefcen-team-title { font-size: 22px; }
  .nefcen-team-header { margin-bottom: 24px; }
  .nefcen-team-grid { grid-template-columns: 1fr; }
}

/* ===== 内页内容区（.negcen）加入我们 ===== */
.negcen { width: 100%; }
.negcen-inner { max-width: 1610px; margin: 0 auto; padding: 0 20px; box-sizing: border-box; }

/* Part1：CTA联系区域 */
.negcen-cta { background: #f2f2f2; padding: 70px 0 60px; text-align: center; }
.negcen-cta-inner { max-width: 1610px; margin: 0 auto; padding: 0 20px; box-sizing: border-box; }
.negcen-cta-label { font-size: 13px; color: #999; letter-spacing: 4px; text-transform: uppercase; margin-bottom: 16px; font-weight: 500; }
.negcen-cta-title { font-size: 34px; font-weight: bold; color: #222; margin-bottom: 16px; }
.negcen-cta-desc { font-size: 15px; color: #666; margin-bottom: 36px; line-height: 1.6; }
.negcen-cta-btns { display: flex; justify-content: center; gap: 20px; margin-bottom: 50px; flex-wrap: wrap; }
.negcen-btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: 30px; font-size: 15px; font-weight: 500; cursor: pointer; transition: all 0.3s; text-decoration: none; border: 2px solid transparent; }
.negcen-btn svg { width: 18px; height: 18px; }
.negcen-btn-primary { background: #222; color: #fff; border-color: #222; }
.negcen-btn-primary:hover { background: #fff; color: #222; }
.negcen-btn-outline { background: transparent; color: #222; border-color: #ccc; }
.negcen-btn-outline:hover { border-color: #222; background: #222; color: #fff; }
.negcen-info-cards { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
.negcen-info-card { background: #fff; border-radius: 10px; padding: 22px 28px; text-align: left; min-width: 220px; flex: 1; max-width: 340px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.negcen-info-card .nic-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.negcen-info-card .nic-header svg { width: 20px; height: 20px; fill: #999; flex-shrink: 0; }
.negcen-info-card .nic-label { font-size: 13px; color: #999; }
.negcen-info-card .nic-value { font-size: 15px; color: #222; font-weight: 500; line-height: 1.5; }

/* Part2：高德地图 */
.negcen-map { width: 100%; height: 500px; }
.negcen-map #amapContainer { width: 100%; height: 100%; }

/* negcen 响应式 */
@media (max-width: 900px) {
  .negcen-info-cards { flex-direction: column; align-items: center; }
  .negcen-info-card { max-width: 100%; width: 100%; }
}
@media (max-width: 768px) {
  .negcen-cta { padding: 50px 0 40px; }
  .negcen-cta-title { font-size: 24px; }
  .negcen-cta-desc { font-size: 14px; }
  .negcen-cta-btns { gap: 12px; margin-bottom: 30px; }
  .negcen-btn { padding: 12px 24px; font-size: 14px; }
  .negcen-info-card { padding: 18px 20px; min-width: auto; }
  .negcen-map { height: 350px; }
}

/* ===== Responsive - Tablet ===== */
@media (max-width: 1024px) {
  .nav-menu li a { padding: 0 14px; font-size: 13px; }
  .banner { height: 450px; }
  .banner-content h2 { font-size: 28px; }
  .banner-content p { font-size: 16px; }
  .service-cards { flex-direction: column; align-items: center; }
  .service-card { max-width: 100%; }
  .solution-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-grid img { width: 120px; height: 52px; }
  .stats-bar { height: 80px; padding: 0 20px; }
  .stat-number { font-size: 26px; }
  .content-layer1 .container { flex-direction: column; }
  .layer1-left, .layer1-right { width: 100%; }
  .content-layer6 .layer6-bg { flex-direction: column; gap: 25px; text-align: center; }
  .layer6-form { flex-direction: column; width: 100%; }
  .layer6-form input { width: 100%; }
}

/* ===== Responsive - Mobile ===== */
@media (max-width: 768px) {
  body { padding-top: 75px; }
  .top-bar { display: none; }
  .navbar { top: 0; }
  .navbar .container { justify-content: space-between; }
  .menu-toggle { display: flex; }
  .nav-menu { display: none; position: absolute; top: 75px; left: 0; width: 100%; background: #fff; flex-direction: column; box-shadow: 0 4px 12px rgba(0,0,0,0.1); z-index: 200; }
  .nav-menu.show { display: flex; }
  .nav-menu li a { line-height: 50px; border-bottom: 1px solid #f0f0f0; }
  .nav-menu li .dropdown { position: static; box-shadow: none; border-left: 3px solid #c00; }
  .btn-consult { display: none; }
  .banner { height: 350px; }
  .banner-content { right: 5%; max-width: 90%; }
  .banner-content-left { left: 5%; }
  .banner-content h2 { font-size: 22px; }
  .banner-content p { font-size: 14px; }
  .banner-content .btn-consult-banner { padding: 10px 25px; font-size: 14px; }
  .stats-bar { height: auto; padding: 20px; flex-wrap: wrap; gap: 15px; }
  .stat-item { flex: 1 1 40%; border-right: none; border-bottom: 1px solid #e0dfe8; padding-bottom: 10px; }
  .stat-item:last-child, .stat-item:nth-child(5) { border-bottom: none; }
  .stat-number { font-size: 24px; }
  .content-layer1, .content-layer2, .content-layer3, .content-layer4, .content-layer5 { padding: 50px 0; }
  .content-layer2 .section-title, .content-layer3 .section-title, .content-layer4 .section-title, .content-layer5 .section-title { font-size: 22px; }
  .content-layer1 .container { flex-direction: column; gap: 30px; }
  .layer1-left, .layer1-right { width: 100%; }
  .service-cards { flex-direction: column; gap: 20px; }
  .solution-grid { grid-template-columns: 1fr; gap: 15px; }
  .solution-item { padding: 20px; }
  .news-grid { grid-template-columns: 1fr; gap: 20px; }
  .partner-grid img { width: 100px; height: 44px; }
  .content-layer6 .layer6-bg { padding: 30px 20px; }
  .layer6-text h3 { font-size: 20px; }
  .layer6-form input { width: 100%; }
  .footer { padding: 80px 0 30px; }
  .footer .container { flex-direction: column; gap: 30px; }
  .footer-qr { align-self: center; }
  .bottom-bar .container { flex-direction: column; gap: 5px; text-align: center; padding: 10px 0; }
  .bottom-bar { height: auto; }
  .neiban .nei1 p{display: none;}
  .neiban .nei1 h2 { font-size: 24px;}
}
@media (max-width: 480px) {
  .banner { height: 280px; }
  .banner-content h2 { font-size: 18px; }
  .banner-content p { font-size: 13px; }
  .stat-number { font-size: 20px; }
  .partner-grid img { width: 80px; height: 36px; }
}