/* ===== CSS Variables ===== */
:root {
  --primary: #1a365d;
  --primary-dark: #0f2440;
  --primary-light: #2c5282;
  --accent: #e67e22;
  --accent-hover: #d35400;
  --bg: #ffffff;
  --bg-light: #f8fafc;
  --bg-dark: #0f172a;
  --text: #1e293b;
  --text-light: #64748b;
  --border: #e2e8f0;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --max-width: 1280px;
  --header-height: 80px;
  --transition: 0.3s ease;
}

/* ===== Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

/* ===== Utility ===== */
.container {
  width: 92%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section {
  padding: 80px 0;
}

.section-light {
  background: var(--bg-light);
}

.section-dark {
  background: var(--primary);
  color: #fff;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--primary);
}

.section-header .subtitle {
  color: var(--text-light);
  font-size: 1rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.section-dark .section-header h2,
.section-dark .section-header .subtitle {
  color: #fff;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}

.btn-secondary {
  background: var(--primary);
  color: #fff;
}

.btn-secondary:hover {
  background: var(--primary-dark);
}

.form-message {
  display: none;
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.form-message.success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}

.form-message.error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  transition: all var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  height: 42px;
  width: auto;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.logo-text span {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-light);
  letter-spacing: 1px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 8px 0;
  transition: color var(--transition);
}

.nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav a:hover,
.nav a.active {
  color: var(--accent);
}

.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--primary);
  transition: all var(--transition);
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo img {
  height: 48px;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.footer-title {
  color: #fff;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-contact li {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.9rem;
}

.footer-contact svg {
  flex-shrink: 0;
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ===== Hero/Banner ===== */
.hero {
  position: relative;
  height: 680px;
  margin-top: var(--header-height);
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
  display: flex;
  align-items: center;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.4) 60%, transparent 100%);
  z-index: 2;
}

.hero-content {
  display: none;
  position: relative;
  z-index: 3;
  color: #fff;
  max-width: 640px;
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-content p {
  font-size: 1.15rem;
  line-height: 1.8;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.9);
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 12px;
}

.hero-dots button {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.5);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
}

.hero-dots button.active {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.2);
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  height: 320px;
  margin-top: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.page-banner-content {
  position: relative;
  z-index: 2;
}

.page-banner h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.page-banner p {
  font-size: 1rem;
  opacity: 0.9;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a:hover {
  color: var(--accent);
}

/* 栏目驱动的内页横幅：带背景图时铺满并加暗色遮罩保证文字可读 */
.page-banner-img { background: #0e2140; }
.page-banner-img::before { opacity: 0.12; }
.page-banner-photo {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  z-index: 0;
}
.page-banner-photo-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 16, 38, 0.3), rgba(5, 16, 38, 0.58));
  z-index: 1;
}
.page-banner-img .page-banner-content { z-index: 2; }

/* ===== Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid var(--border);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: var(--bg-light);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-body {
  padding: 24px;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--primary);
}

.card-text {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
}

.card-link:hover {
  gap: 10px;
}

/* ===== Feature/Highlight ===== */
.highlight-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.highlight-item {
  background: #fff;
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.highlight-item:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.highlight-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: rgba(230, 126, 34, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.highlight-icon svg {
  width: 28px;
  height: 28px;
}

.highlight-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--primary);
}

.highlight-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== About Section ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: auto;
}

.about-content h2 {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 20px;
}

.about-content p {
  color: var(--text-light);
  margin-bottom: 16px;
  line-height: 1.8;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--accent);
  display: block;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

.timeline-dot {
  position: absolute;
  left: -40px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 4px solid #fff;
  box-shadow: var(--shadow);
}

.timeline-year {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.timeline-desc {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== Team & Honors ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  text-align: center;
  padding: 24px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.team-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--bg-light);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  font-size: 2rem;
  font-weight: 700;
}

.team-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
}

.team-role {
  font-size: 0.85rem;
  color: var(--accent);
  margin: 4px 0 8px;
}

.team-card p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.6;
}

.honor-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.honor-card {
  background: #fff;
  padding: 28px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  text-align: center;
  transition: all var(--transition);
}

.honor-card:hover {
  border-color: var(--accent);
}

.honor-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  color: var(--accent);
}

.honor-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.honor-card p {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* ===== Products ===== */
.products-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 50px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.product-card .card-image {
  height: 260px;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-card .card-image img {
  width: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.product-tag {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(230, 126, 34, 0.1);
  color: var(--accent);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}

/* ===== Product Detail ===== */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: start;
}

.product-gallery {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border);
}

.product-gallery img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
}

.product-info h1 {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.product-info .tagline {
  color: var(--text-light);
  margin-bottom: 24px;
  line-height: 1.8;
}

.product-specs {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.product-specs th,
.product-specs td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.product-specs th {
  width: 35%;
  color: var(--primary);
  font-weight: 600;
  background: var(--bg-light);
}

.product-specs td {
  color: var(--text);
}

.product-features {
  margin: 28px 0;
}

.product-features h3 {
  font-size: 1.15rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.product-features li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  color: var(--text-light);
}

.product-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ===== 产品详情 双 Tab（技术参数 / 产品详情） ===== */
.spec-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 8px;
}
.spec-tab {
  appearance: none;
  border: none;
  background: transparent;
  padding: 14px 28px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color var(--transition), border-color var(--transition);
}
.spec-tab:hover { color: var(--primary); }
.spec-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
/* 产品详情面板富文本正文排版 */
.pdetail-content {
  padding: 28px 8px 8px;
  line-height: 1.9;
  color: var(--text);
  font-size: 1rem;
}
.pdetail-content h2,
.pdetail-content h3,
.pdetail-content h4 {
  color: var(--primary);
  margin: 24px 0 12px;
}
.pdetail-content p { margin: 0 0 16px; }
.pdetail-content ul,
.pdetail-content ol { margin: 0 0 16px; padding-left: 24px; }
.pdetail-content li { margin-bottom: 6px; }
.pdetail-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md, 10px);
  margin: 12px 0;
}
.pdetail-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}
.pdetail-content th,
.pdetail-content td {
  border: 1px solid var(--border);
  padding: 10px 12px;
}
.pdetail-content strong { color: var(--primary); }

/* ===== Cases/Application ===== */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4/3;
}

.case-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.case-card:hover img {
  transform: scale(1.08);
}

.case-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.9) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  color: #fff;
}

.case-overlay h3 {
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.case-overlay p {
  font-size: 0.85rem;
  opacity: 0.9;
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
}

.contact-info-card {
  background: #fff;
  padding: 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-bottom: 24px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(230, 126, 34, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-icon svg {
  width: 22px;
  height: 22px;
}

.contact-info-text h4 {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 4px;
}

.contact-info-text p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

.contact-form {
  background: #fff;
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  height: 400px;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

.map-placeholder {
  text-align: center;
}

.map-placeholder svg {
  color: var(--accent);
  margin-bottom: 12px;
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  text-align: center;
  padding: 80px 0;
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.cta-section p {
  max-width: 600px;
  margin: 0 auto 28px;
  opacity: 0.9;
  line-height: 1.8;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .highlight-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: #fff;
    flex-direction: column;
    padding: 40px 24px;
    gap: 24px;
    transform: translateX(100%);
    transition: transform var(--transition);
    box-shadow: var(--shadow);
  }

  .nav.open {
    transform: translateX(0);
  }

  .nav a {
    font-size: 1.1rem;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero {
    height: 520px;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-content p {
    font-size: 1rem;
  }

  .section {
    padding: 60px 0;
  }

  .section-header h2 {
    font-size: 1.75rem;
  }

  .about-grid,
  .product-detail-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-image {
    order: -1;
  }

  .stats-row,
  .highlight-grid,
  .case-grid,
  .honor-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .page-banner h1 {
    font-size: 1.75rem;
  }

  .product-specs th,
  .product-specs td {
    padding: 10px 12px;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .logo-text {
    font-size: 1rem;
  }

  .logo-text span {
    display: none;
  }

  .hero {
    height: 460px;
  }

  .hero-content h1 {
    font-size: 1.6rem;
  }

  .hero-btns {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

/* ============================================================
   HOME V2 —— 首页重设计（公司简介 / 核心产品 / 业务优势）
   ============================================================ */

/* ---------- 通用 ---------- */
.hm-section {
  padding: 110px 0;
}

.hm-kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.hm-kicker::after {
  content: "";
  width: 46px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.hm-title {
  font-size: clamp(2.1rem, 3.6vw, 3.2rem);
  line-height: 1.22;
  font-weight: 800;
  color: #0c2242;
  letter-spacing: 0.5px;
}

.hm-title .gold {
  background: linear-gradient(100deg, #e07b1a, #f5a93a);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.hm-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

.hm-reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------- 公司简介 About ---------- */
.hm-about {
  background: #fff;
  padding: 120px 0 90px;
  position: relative;
  overflow: hidden;
}

.hm-about::before {
  content: "";
  position: absolute;
  top: -260px;
  right: -260px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  border: 90px solid rgba(26, 54, 93, 0.04);
  pointer-events: none;
}

.hm-about-wrap {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 76px;
  align-items: center;
}

.hm-about-body .hm-title {
  margin-bottom: 24px;
}

.hm-about-lead {
  color: var(--text-light);
  font-size: 1.02rem;
  line-height: 1.95;
  margin-bottom: 18px;
  text-align: justify;
}

.hm-about-lead strong {
  color: #0c2242;
}

.hm-ticks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 22px;
  margin: 28px 0 36px;
}

.hm-tick {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #1e3a5f;
}

.hm-tick svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--accent);
}

.hm-btn-more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(120deg, #12294f, #1c3d72);
  color: #fff;
  padding: 14px 34px;
  border-radius: 60px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.35s ease;
  box-shadow: 0 12px 26px -10px rgba(15, 36, 64, 0.45);
}

.hm-btn-more:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 34px -12px rgba(15, 36, 64, 0.55);
}

.hm-btn-more .ar {
  transition: transform 0.3s ease;
}

.hm-btn-more:hover .ar {
  transform: translateX(5px);
}

/* About 媒体组合 */
.hm-about-media {
  position: relative;
}

.hm-about-media::before {
  content: "";
  position: absolute;
  top: 34px;
  left: -26px;
  width: 78%;
  height: 82%;
  border-radius: 24px;
  background: linear-gradient(160deg, #e9eff8, #f6f9fd);
  z-index: 0;
}

.hm-about-frame {
  position: relative;
  z-index: 1;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 34px 60px -24px rgba(12, 34, 66, 0.4);
}

.hm-about-frame img {
  width: 100%;
  height: 100%;
  min-height: 430px;
  object-fit: cover;
  display: block;
}

.hm-badge {
  position: absolute;
  z-index: 3;
  left: -34px;
  bottom: 44px;
  background: linear-gradient(135deg, #e67e22, #f5a93a);
  color: #fff;
  border-radius: 18px;
  padding: 18px 24px;
  box-shadow: 0 18px 36px -12px rgba(230, 126, 34, 0.65);
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  text-align: left;
}

.hm-badge b {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.hm-badge span {
  font-size: 0.82rem;
  font-weight: 600;
  opacity: 0.95;
  margin-top: 2px;
}

.hm-cert-chip {
  position: absolute;
  z-index: 3;
  top: 26px;
  right: -16px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(26, 54, 93, 0.1);
  border-radius: 60px;
  padding: 10px 20px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #12294f;
  box-shadow: 0 14px 30px -12px rgba(12, 34, 66, 0.35);
  display: flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(6px);
}

.hm-cert-chip svg {
  width: 17px;
  height: 17px;
  color: var(--accent);
}

/* About 数据带 */
.hm-stats {
  position: relative;
  z-index: 2;
  margin-top: 96px;
  background: linear-gradient(120deg, #0b1f3f 0%, #163a6b 60%, #1d4a86 100%);
  border-radius: 24px;
  padding: 52px 30px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  box-shadow: 0 34px 70px -28px rgba(9, 24, 51, 0.6);
  overflow: hidden;
}

.hm-stats::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -180px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  border: 60px solid rgba(255, 255, 255, 0.05);
}

.hm-stat {
  text-align: center;
  position: relative;
}

.hm-stat + .hm-stat {
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.hm-stat b {
  display: block;
  font-size: clamp(2.3rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(180deg, #ffd591, #f5a93a);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  letter-spacing: 1px;
}

.hm-stat b i {
  font-style: normal;
  font-size: 0.5em;
  -webkit-text-fill-color: #ffd591;
  color: #ffd591;
  margin-left: 3px;
  vertical-align: super;
  letter-spacing: 0;
}

.hm-stat span {
  display: block;
  margin-top: 12px;
  font-size: 0.92rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.75);
}

/* ---------- 核心产品 Core Products ---------- */
.hm-products {
  background:
    radial-gradient(1000px 320px at 85% -10%, rgba(26, 54, 93, 0.07), transparent 60%),
    #f2f6fb;
  padding: 110px 0;
}

.hm-products-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 54px;
}

.hm-products-head .hm-title {
  margin-bottom: 0;
}

.hm-link-all {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  padding: 13px 26px;
  border: 1.5px solid #c9d6e8;
  border-radius: 60px;
  color: #12294f;
  font-size: 0.92rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.6);
  transition: all 0.35s ease;
}

.hm-link-all:hover {
  background: #12294f;
  color: #fff;
  border-color: #12294f;
  transform: translateY(-2px);
}

.hm-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 26px;
  align-items: stretch;
}

/* 主展示面板 */
.hm-panel {
  background: #fff;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 30px 60px -26px rgba(12, 34, 66, 0.28);
  border: 1px solid #e6ecf5;
  min-height: 430px;
  display: grid;
  grid-template-columns: 1.08fr 1fr;
  transition: opacity 0.3s ease;
}

.hm-panel.switching {
  opacity: 0.35;
}

.hm-panel-media {
  position: relative;
  min-height: 430px;
  background:
    radial-gradient(600px 300px at 30% 20%, #ffffff, transparent 60%),
    linear-gradient(150deg, #edf3fa, #e2eaf4);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
}

.hm-panel-media img {
  max-width: 96%;
  max-height: 84%;
  object-fit: contain;
  filter: drop-shadow(0 26px 30px rgba(12, 34, 66, 0.16));
  transition: transform 0.5s ease;
}

.hm-panel:hover .hm-panel-media img {
  transform: scale(1.03);
}

.hm-speed {
  position: absolute;
  top: 22px;
  left: 22px;
  z-index: 2;
  background: rgba(10, 26, 54, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #fff;
  border-radius: 16px;
  padding: 12px 18px;
  backdrop-filter: blur(6px);
  min-width: 118px;
  box-shadow: 0 14px 30px -12px rgba(9, 24, 51, 0.6);
}

.hm-speed b {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.05;
  color: #ffc46b;
  letter-spacing: 0.5px;
}

.hm-speed span {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.78);
  text-transform: uppercase;
}

.hm-panel-info {
  display: flex;
  flex-direction: column;
  padding: 42px 40px;
}

.hm-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.hm-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #c25910;
  background: rgba(230, 126, 34, 0.12);
  border-radius: 60px;
  padding: 5px 12px;
}

.hm-pname {
  font-size: clamp(1.5rem, 2vw, 1.9rem);
  font-weight: 800;
  color: #0c2242;
  line-height: 1.3;
  margin-bottom: 14px;
}

.hm-pname small {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  color: #64748b;
  margin-top: 6px;
}

.hm-pdesc {
  color: #5b6f8c;
  font-size: 0.92rem;
  line-height: 1.85;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 22px;
}

.hm-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 18px;
  border-top: 1px dashed #dbe4f0;
  padding-top: 20px;
  margin-bottom: 28px;
}

.hm-spec b {
  display: block;
  font-size: 0.98rem;
  font-weight: 800;
  color: #17335f;
  line-height: 1.4;
  word-break: break-word;
}

.hm-spec span {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: #93a5c0;
  text-transform: uppercase;
}

.hm-plink {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 10px;
  color: #0c2242;
  font-weight: 800;
  font-size: 0.95rem;
  padding-bottom: 4px;
  position: relative;
  transition: color 0.3s ease;
}

.hm-plink::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #e67e22, #f5a93a);
  transition: all 0.3s ease;
}

.hm-plink .ar {
  color: #e67e22;
  transition: transform 0.3s ease;
}

.hm-plink:hover {
  color: #e67e22;
}

.hm-plink:hover .ar {
  transform: translateX(6px);
}

/* ---------- 移动端产品卡片（默认隐藏，仅窄屏代替 面板+Tab） ---------- */
.hm-mcards {
  display: none;
  gap: 16px;
}

.hm-mcard {
  position: relative;
  display: block;
  background: #fff;
  border: 1px solid #e6ecf5;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 22px 44px -30px rgba(12, 34, 66, 0.42);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hm-mcard:active {
  transform: scale(0.985);
}

.hm-mcard-media {
  position: relative;
  background: #eef3fa;
  border-bottom: 1px solid #eef3f9;
  line-height: 0;
}

.hm-mcard-media img {
  display: block;
  width: 100%;
  height: auto;
}

.hm-mcard-flag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #c25910;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(230, 126, 34, 0.28);
  border-radius: 60px;
  padding: 4px 11px;
}

.hm-mcard-body {
  position: relative;
  padding: 18px 20px 20px;
}

.hm-mcard-name {
  font-size: 1.06rem;
  font-weight: 800;
  color: #0c2242;
  line-height: 1.35;
  letter-spacing: 0.2px;
  padding-right: 42px;
}

.hm-mcard-name small {
  display: block;
  margin-top: 3px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #64748b;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hm-mcard-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 14px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed #dbe4f0;
}

.hm-mcard-specs b {
  display: block;
  font-size: 0.86rem;
  font-weight: 800;
  color: #17335f;
  line-height: 1.3;
  word-break: break-word;
}

.hm-mcard-specs span {
  display: block;
  margin-top: 2px;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: #93a5c0;
  text-transform: uppercase;
}

.hm-mcard-go {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #e67e22, #f5a93a);
  color: #fff;
  font-size: 0.92rem;
  font-weight: 800;
  box-shadow: 0 10px 20px -10px rgba(230, 126, 34, 0.85);
}

/* 右侧 Tab */
.hm-tabs {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hm-tab {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  text-align: left;
  background: #fff;
  border: 1px solid #e3eaf4;
  border-radius: 18px;
  padding: 20px 18px;
  cursor: pointer;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
  font-family: inherit;
}

.hm-tab::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #e67e22, #f5a93a);
  transform: scaleY(0);
  transition: transform 0.35s ease;
}

.hm-tab:hover {
  border-color: #b9c9e0;
  transform: translateX(-4px);
}

.hm-tab.active {
  background: linear-gradient(135deg, #10264a, #1d4279);
  border-color: #10264a;
  color: #fff;
  box-shadow: 0 20px 40px -18px rgba(11, 31, 58, 0.55);
}

.hm-tab.active::before {
  transform: scaleY(1);
}

.hm-tab-num {
  font-size: 1.6rem;
  font-weight: 800;
  font-style: italic;
  color: #c6d3e4;
  line-height: 1;
  min-width: 34px;
  transition: color 0.35s ease;
}

.hm-tab.active .hm-tab-num {
  color: #ffc46b;
}

.hm-tab-tx {
  flex: 1;
  min-width: 0;
}

.hm-tab-tx b {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  color: #0c2242;
  letter-spacing: 0.3px;
  transition: color 0.35s ease;
}

.hm-tab-tx em {
  display: block;
  font-style: normal;
  font-size: 0.78rem;
  color: #8ba0bd;
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.35s ease;
}

.hm-tab.active .hm-tab-tx b {
  color: #fff;
}

.hm-tab.active .hm-tab-tx em {
  color: rgba(255, 255, 255, 0.6);
}

.hm-tab .ar {
  color: #e67e22;
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.35s ease;
}

.hm-tab.active .ar {
  opacity: 1;
  transform: none;
}

/* ---------- 业务优势 Advantages ---------- */
.hm-adv {
  position: relative;
  background: linear-gradient(150deg, #0a1c3a 0%, #102a52 55%, #16376a 100%);
  color: #fff;
  padding: 120px 0;
  overflow: hidden;
}

.hm-adv::before {
  content: "";
  position: absolute;
  top: -260px;
  right: -180px;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.06);
  box-shadow:
    0 0 0 70px rgba(255, 255, 255, 0.025),
    0 0 0 140px rgba(255, 255, 255, 0.018);
  pointer-events: none;
}

.hm-adv::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, #f5a93a 30%, #e67e22 70%, transparent);
  opacity: 0.8;
}

.hm-adv .hm-title {
  color: #fff;
}

.hm-adv-head {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: end;
  margin-bottom: 70px;
  position: relative;
}

.hm-adv-intro {
  padding-bottom: 8px;
}

.hm-adv-intro p {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.98rem;
  line-height: 1.9;
  margin-bottom: 26px;
}

.hm-adv-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(120deg, #e67e22, #f5a93a);
  color: #fff;
  padding: 14px 32px;
  border-radius: 60px;
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: 0 16px 34px -14px rgba(230, 126, 34, 0.7);
  transition: all 0.35s ease;
}

.hm-adv-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 44px -14px rgba(230, 126, 34, 0.8);
}

.hm-adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  position: relative;
}

.hm-adv-card {
  position: relative;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  padding: 38px 28px 34px;
  overflow: hidden;
  transition: all 0.4s ease;
}

.hm-adv-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, #f5a93a, #e67e22);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s ease;
}

.hm-adv-card:hover {
  transform: translateY(-10px);
  border-color: rgba(255, 196, 107, 0.45);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
  box-shadow: 0 30px 54px -22px rgba(0, 0, 0, 0.55);
}

.hm-adv-card:hover::after {
  transform: scaleX(1);
}

.hm-adv-num {
  position: absolute;
  top: 18px;
  right: 22px;
  font-size: 3.1rem;
  font-weight: 800;
  font-style: italic;
  line-height: 1;
  color: rgba(255, 255, 255, 0.07);
  transition: color 0.4s ease;
}

.hm-adv-card:hover .hm-adv-num {
  color: rgba(255, 196, 107, 0.22);
}

.hm-adv-ico {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(140deg, rgba(230, 126, 34, 0.22), rgba(245, 169, 58, 0.1));
  border: 1px solid rgba(255, 196, 107, 0.28);
  color: #ffc46b;
  margin-bottom: 24px;
}

.hm-adv-ico svg {
  width: 28px;
  height: 28px;
}

.hm-adv-card h3 {
  font-size: 1.22rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.hm-adv-card p {
  font-size: 0.88rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.62);
}

/* ---------- Home V2 响应式 ---------- */
@media (max-width: 1180px) {
  .hm-showcase {
    grid-template-columns: 1fr;
  }
  .hm-tabs {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: thin;
  }
  .hm-tab {
    flex: 0 0 232px;
  }
  .hm-tab:hover {
    transform: translateY(-4px);
  }
  .hm-adv-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 1024px) {
  .hm-about-wrap {
    grid-template-columns: 1fr;
    gap: 64px;
  }
  .hm-about-body {
    order: 1;
  }
  .hm-about-media {
    order: 2;
    max-width: 640px;
  }
  .hm-badge {
    left: -8px;
  }
  .hm-cert-chip {
    right: -4px;
  }
}

@media (max-width: 768px) {
  .hm-section {
    padding: 74px 0;
  }
  .hm-about {
    padding: 84px 0 60px;
  }
  .hm-products {
    padding: 74px 0;
  }
  .hm-adv {
    padding: 84px 0;
  }

  .hm-ticks {
    grid-template-columns: 1fr;
  }

  .hm-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 0;
    padding: 44px 18px;
  }
  .hm-stat:nth-child(3) {
    border-left: none;
  }

  .hm-products-head {
    flex-direction: column;
    align-items: flex-start;
  }

  /* 手机端：隐藏「主面板 + 横向 Tab」，改为四张竖排卡片 */
  .hm-showcase .hm-panel,
  .hm-showcase .hm-tabs {
    display: none;
  }
  .hm-mcards {
    display: grid;
  }

  .hm-panel {
    grid-template-columns: 1fr;
  }
  .hm-panel-media {
    min-height: 260px;
    max-height: 320px;
    padding: 20px;
  }
  .hm-panel-media img {
    max-height: 220px;
  }
  .hm-panel-info {
    padding: 30px 26px 34px;
  }
  .hm-specs {
    gap: 12px;
  }

  .hm-adv-head {
    grid-template-columns: 1fr;
    gap: 34px;
    margin-bottom: 48px;
  }
}

@media (max-width: 480px) {
  .hm-about-media::before {
    left: -10px;
  }
  .hm-badge {
    padding: 14px 18px;
    left: 12px;
    bottom: -24px;
  }
  .hm-cert-chip {
    top: 14px;
    right: 10px;
  }
  .hm-about-frame img {
    min-height: 320px;
  }
  .hm-stats {
    grid-template-columns: 1fr;
  }
  .hm-stat {
    border-left: none !important;
    padding: 6px 0;
  }
  .hm-adv-grid {
    grid-template-columns: 1fr;
  }
  .hm-specs {
    grid-template-columns: 1fr;
  }
}

/* 导航 6 项收紧间距 */
.nav {
  gap: clamp(18px, 2.3vw, 32px);
}

/* =====================================================
   V3 内页系列 · 关于我们 / 新闻中心 / 案例展示
   ===================================================== */
/* 内页 Banner 顶部金线点缀（作用于所有内页） */
.page-banner::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, #f5a93a 35%, #e67e22 70%, transparent);
  opacity: 0.9;
  z-index: 2;
}

/* ---------- 关于我们 About（V3） ---------- */
.ab-hero {
  padding: 118px 0 90px;
  background: #fff;
  position: relative;
  overflow: hidden;
}
.ab-hero::before {
  content: "";
  position: absolute;
  top: -300px;
  right: -240px;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  border: 100px solid rgba(26, 54, 93, 0.045);
  pointer-events: none;
}
.ab-hero::after {
  content: "";
  position: absolute;
  bottom: 40px;
  left: -220px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  border: 56px solid rgba(230, 126, 34, 0.05);
  pointer-events: none;
}
.ab-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 78px;
  align-items: center;
  position: relative;
}
.ab-copy .hm-title {
  margin-bottom: 22px;
}
.ab-lead {
  color: #5b6f8c;
  font-size: 1.02rem;
  line-height: 1.95;
  text-align: justify;
}
.ab-lead p + p {
  margin-top: 14px;
}
.ab-lead strong {
  color: #0c2242;
  font-weight: 700;
}
.ab-ticks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
  margin: 26px 0 38px;
}
.ab-tick {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.94rem;
  font-weight: 600;
  color: #1e3a5f;
}
.ab-tick svg {
  width: 21px;
  height: 21px;
  flex-shrink: 0;
  color: #e67e22;
}
.ab-cta-row {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.ab-cta-gold {
  background: linear-gradient(120deg, #e67e22, #f5a93a);
  color: #fff;
  padding: 14px 34px;
  border-radius: 60px;
  font-size: 0.95rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 14px 30px -12px rgba(230, 126, 34, 0.65);
  transition: all 0.35s ease;
}
.ab-cta-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px -12px rgba(230, 126, 34, 0.75);
}
.ab-cta-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #0c2242;
  font-weight: 700;
  font-size: 0.95rem;
  border-bottom: 2px solid rgba(230, 126, 34, 0.6);
  padding-bottom: 3px;
  transition: all 0.3s ease;
}
.ab-cta-ghost:hover {
  color: #e67e22;
}

/* 右侧媒体组合 */
.ab-media {
  position: relative;
}
.ab-media::before {
  content: "";
  position: absolute;
  top: 30px;
  right: -24px;
  width: 74%;
  height: 88%;
  border-radius: 26px;
  background: linear-gradient(200deg, #e8eef8, #f7fafd);
  z-index: 0;
}
.ab-media-frame {
  position: relative;
  z-index: 1;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 36px 70px -26px rgba(12, 34, 66, 0.45);
}
.ab-media-frame img {
  width: 100%;
  min-height: 460px;
  object-fit: cover;
  display: block;
}
.ab-chip {
  position: absolute;
  z-index: 3;
  top: 26px;
  left: -18px;
  background: linear-gradient(135deg, #10264a, #1d4279);
  color: #fff;
  border-radius: 14px;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 18px 38px -14px rgba(11, 31, 58, 0.6);
}
.ab-chip .cico {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: rgba(255, 196, 107, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffc46b;
}
.ab-chip .cico svg {
  width: 22px;
  height: 22px;
}
.ab-chip b {
  display: block;
  font-size: 1.02rem;
  line-height: 1.3;
}
.ab-chip span {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.66);
  margin-top: 1px;
}
.ab-quote {
  position: absolute;
  z-index: 3;
  left: 26px;
  right: -26px;
  bottom: -34px;
  background: #fff;
  border-radius: 18px;
  padding: 22px 28px 20px 62px;
  box-shadow: 0 26px 54px -22px rgba(12, 34, 66, 0.35);
  border: 1px solid #e9eff8;
}
.ab-quote::before {
  content: "“";
  position: absolute;
  left: 20px;
  top: 4px;
  font-size: 3.4rem;
  line-height: 1;
  color: #e67e22;
  font-family: Georgia, serif;
}
.ab-quote p {
  color: #0c2242;
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.7;
}
.ab-quote small {
  display: block;
  margin-top: 6px;
  color: #93a5c0;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
}

/* 数据带（延续首页质感） */
.ab-stats {
  background: linear-gradient(120deg, #0b1f3f 0%, #163a6b 60%, #1d4a86 100%);
  padding: 52px 40px;
  border-radius: 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  box-shadow: 0 34px 70px -28px rgba(9, 24, 51, 0.6);
  position: relative;
  overflow: hidden;
}
.ab-stats::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -180px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  border: 60px solid rgba(255, 255, 255, 0.05);
}
.ab-stat {
  text-align: center;
  position: relative;
}
.ab-stat + .ab-stat {
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}
.ab-stat b {
  display: block;
  font-size: clamp(2.1rem, 3.6vw, 3.1rem);
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(180deg, #ffd591, #f5a93a);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.ab-stat b i {
  font-style: normal;
  font-size: 0.5em;
  -webkit-text-fill-color: #ffd591;
  color: #ffd591;
  vertical-align: super;
  margin-left: 2px;
}
.ab-stat span {
  display: block;
  margin-top: 12px;
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.72);
}

/* 发展历程 */
.ab-road-sec {
  background: #f5f8fc;
  padding: 110px 0;
  position: relative;
  overflow: hidden;
}
.ab-road {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  padding: 10px 0;
}
.ab-road::before {
  content: "";
  position: absolute;
  left: 236px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(230, 126, 34, 0.15), #d9a15f 40%, rgba(230, 126, 34, 0.15));
}
.ab-node {
  display: grid;
  grid-template-columns: 220px 34px 1fr;
  gap: 22px;
  position: relative;
  padding: 18px 0;
}
.ab-node::after {
  /* 连接点 */
  content: "";
  position: absolute;
  left: 234px;
  top: 34px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #fff;
  border: 4px solid #e67e22;
  box-shadow: 0 0 0 5px rgba(230, 126, 34, 0.18);
  transform: translateX(-5px);
  z-index: 2;
}
.ab-year {
  text-align: right;
  padding-top: 4px;
}
.ab-year b {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: #163a6b;
  letter-spacing: 1px;
  background: linear-gradient(140deg, #0f2440, #2c5282);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.ab-year span {
  display: block;
  margin-top: 6px;
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: #a0b0c8;
  text-transform: uppercase;
}
.ab-card {
  background: #fff;
  border: 1px solid #e6ecf5;
  border-radius: 18px;
  padding: 24px 30px;
  box-shadow: 0 12px 26px -18px rgba(12, 34, 66, 0.25);
  transition: all 0.35s ease;
}
.ab-card:hover {
  transform: translateY(-4px);
  border-color: rgba(230, 126, 34, 0.4);
  box-shadow: 0 24px 46px -20px rgba(12, 34, 66, 0.3);
}
.ab-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #0c2242;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.ab-card h3 i {
  font-style: normal;
  font-size: 0.7rem;
  font-weight: 700;
  color: #c25910;
  background: rgba(230, 126, 34, 0.12);
  border-radius: 60px;
  padding: 3px 10px;
  white-space: nowrap;
}
.ab-card p {
  color: #64748b;
  font-size: 0.92rem;
  line-height: 1.85;
}

/* 文化愿景（深色） */
.ab-vision {
  position: relative;
  background: linear-gradient(150deg, #0a1c3a 0%, #102a52 55%, #16376a 100%);
  color: #fff;
  padding: 120px 0;
  overflow: hidden;
}
.ab-vision::before {
  content: "";
  position: absolute;
  top: -260px;
  right: -180px;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 70px rgba(255, 255, 255, 0.025), 0 0 0 140px rgba(255, 255, 255, 0.018);
  pointer-events: none;
}
.ab-vision::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, #f5a93a 30%, #e67e22 70%, transparent);
  opacity: 0.8;
}
.ab-vision .hm-title {
  color: #fff;
}
.ab-vision-head {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: end;
  margin-bottom: 62px;
  position: relative;
}
.ab-vision-note {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.97rem;
  line-height: 1.9;
  padding-bottom: 6px;
}
.ab-vgrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}
.ab-vcard {
  position: relative;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  padding: 40px 30px 36px;
  overflow: hidden;
  transition: all 0.4s ease;
}
.ab-vcard::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, #f5a93a, #e67e22);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s ease;
}
.ab-vcard:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 196, 107, 0.4);
  box-shadow: 0 30px 54px -22px rgba(0, 0, 0, 0.5);
}
.ab-vcard:hover::after {
  transform: scaleX(1);
}
.ab-vtag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  color: #ffc46b;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.ab-vico {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(140deg, rgba(230, 126, 34, 0.22), rgba(245, 169, 58, 0.1));
  border: 1px solid rgba(255, 196, 107, 0.28);
  color: #ffc46b;
  margin-bottom: 22px;
}
.ab-vico svg {
  width: 26px;
  height: 26px;
}
.ab-vcard h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.ab-vcard p {
  font-size: 0.9rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.6);
}

/* 团队 */
.ab-team-sec {
  padding: 110px 0;
  background: #fff;
}
.ab-tgrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.ab-tcard {
  position: relative;
  background: #fff;
  border: 1px solid #e7edf6;
  border-radius: 20px;
  padding: 42px 26px 32px;
  text-align: center;
  transition: all 0.35s ease;
  overflow: hidden;
}
.ab-tcard::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 5px;
  background: linear-gradient(90deg, #12294f, #1d4279);
  transition: all 0.35s ease;
}
.ab-tcard:hover {
  transform: translateY(-8px);
  box-shadow: 0 28px 54px -22px rgba(12, 34, 66, 0.32);
}
.ab-tcard:hover::before {
  background: linear-gradient(90deg, #e67e22, #f5a93a);
}
.ab-avatar {
  width: 96px;
  height: 96px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, #12294f, #1d4279);
  color: #ffc46b;
  font-size: 1.9rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 14px 30px -12px rgba(18, 41, 79, 0.55);
}
.ab-tname {
  font-size: 1.22rem;
  font-weight: 800;
  color: #0c2242;
}
.ab-trole {
  display: inline-block;
  margin: 10px 0 14px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #c25910;
  background: rgba(230, 126, 34, 0.1);
  padding: 4px 14px;
  border-radius: 60px;
}
.ab-tcard p {
  color: #64748b;
  font-size: 0.88rem;
  line-height: 1.8;
  text-align: justify;
}

/* 资质荣誉 */
.ab-honor-sec {
  background: #f5f8fc;
  padding: 110px 0;
}
.ab-hgrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.ab-hcard {
  display: flex;
  gap: 20px;
  background: #fff;
  border: 1px solid #e7edf6;
  border-radius: 20px;
  padding: 30px 28px;
  transition: all 0.35s ease;
  position: relative;
}
.ab-hcard::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, #f5a93a, #e67e22);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s ease;
}
.ab-hcard:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -22px rgba(12, 34, 66, 0.28);
  border-color: rgba(230, 126, 34, 0.35);
}
.ab-hcard:hover::after {
  transform: scaleX(1);
}
.ab-hico {
  width: 58px;
  height: 58px;
  flex-shrink: 0;
  border-radius: 16px;
  background: rgba(230, 126, 34, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #e67e22;
}
.ab-hico svg {
  width: 28px;
  height: 28px;
}
.ab-hcard h3 {
  font-size: 1.08rem;
  font-weight: 800;
  color: #0c2242;
  margin-bottom: 8px;
  line-height: 1.4;
}
.ab-hcard p {
  color: #7a8ba3;
  font-size: 0.87rem;
  line-height: 1.8;
}

/* 关于页 V3 响应式 */
@media (max-width: 1024px) {
  .ab-grid {
    grid-template-columns: 1fr;
    gap: 84px;
  }
  .ab-media {
    max-width: 620px;
  }
  .ab-tgrid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ab-hgrid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .ab-hero {
    padding: 84px 0 70px;
  }
  .ab-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px 0;
    padding: 44px 20px;
  }
  .ab-stat:nth-child(3) {
    border-left: none;
  }
  .ab-road::before {
    left: 14px;
  }
  .ab-node {
    grid-template-columns: 34px 1fr;
    gap: 0 18px;
  }
  .ab-node::after {
    left: 14px;
    top: 32px;
    transform: translateX(-6px);
  }
  .ab-year {
    grid-column: 2;
    grid-row: 1;
    text-align: left;
    padding-top: 0;
  }
  .ab-year b {
    font-size: 1.7rem;
  }
  .ab-card {
    grid-column: 2;
    margin-top: 6px;
  }
  .ab-vision-head {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 44px;
  }
  .ab-vgrid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 560px) {
  .ab-tgrid,
  .ab-hgrid {
    grid-template-columns: 1fr;
  }
  .ab-ticks {
    grid-template-columns: 1fr;
  }
  .ab-quote {
    position: static;
    margin-top: 30px;
  }
  .ab-media-frame img {
    min-height: 300px;
  }
  .ab-stats {
    grid-template-columns: 1fr;
  }
  .ab-stat {
    border-left: none !important;
    padding: 4px 0;
  }
}

/* ---------- 新闻中心 News（V3） ---------- */
.nw-sec {
  background: #f5f8fc;
  padding: 96px 0 110px;
  min-height: 60vh;
}
.nw-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.nw-cats {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.nw-cat {
  border: 1.5px solid #cdd9e9;
  background: #fff;
  color: #37506f;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 9px 22px;
  border-radius: 60px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
}
.nw-cat:hover {
  border-color: #12294f;
  color: #12294f;
  transform: translateY(-2px);
}
.nw-cat.active {
  background: linear-gradient(120deg, #12294f, #1d4279);
  border-color: #12294f;
  color: #fff;
  box-shadow: 0 14px 28px -14px rgba(11, 31, 58, 0.55);
}
.nw-count {
  font-size: 0.9rem;
  color: #8ba0bd;
  letter-spacing: 0.06em;
}
.nw-count b {
  color: #e67e22;
  font-size: 1.15rem;
  margin: 0 2px;
}

/* 新闻列表 */
.nw-list {
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.nw-item {
  display: grid;
  grid-template-columns: 260px 1fr;
  background: #fff;
  border: 1px solid #e6ecf5;
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.35s ease;
}
.nw-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 56px -26px rgba(12, 34, 66, 0.35);
  border-color: #d7e1ef;
}
.nw-cover {
  position: relative;
  min-height: 208px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
  color: #fff;
}
.nw-cover.cat-company {
  background:
    radial-gradient(220px 130px at 85% -20%, rgba(255, 255, 255, 0.18), transparent 60%),
    linear-gradient(140deg, #0d2347, #1d4279 70%, #24518f);
}
.nw-cover.cat-industry {
  background:
    radial-gradient(220px 130px at 85% -20%, rgba(255, 255, 255, 0.2), transparent 60%),
    linear-gradient(140deg, #a84e0b, #e67e22 65%, #f0a03c);
}
.nw-cover::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -52px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 26px solid rgba(255, 255, 255, 0.08);
  pointer-events: none;
}
.nw-cover .en {
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  opacity: 0.85;
}
.nw-cover .big {
  position: absolute;
  right: -8px;
  bottom: -14px;
  font-size: 5.2rem;
  font-weight: 800;
  line-height: 1;
  opacity: 0.14;
  letter-spacing: -3px;
  pointer-events: none;
}
.nw-cover .d {
  position: relative;
  z-index: 1;
  font-size: 1.3rem;
  font-weight: 800;
  line-height: 1.1;
}
.nw-cover .d small {
  display: block;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  opacity: 0.85;
  margin-top: 3px;
}
.nw-body {
  padding: 30px 34px 26px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.nw-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.nw-cat-chip {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  background: linear-gradient(120deg, #12294f, #24518f);
  border-radius: 60px;
  padding: 4px 12px;
}
.nw-item.cat-industry .nw-cat-chip {
  background: linear-gradient(120deg, #c25910, #e67e22);
}
.nw-meta .dt {
  font-size: 0.8rem;
  color: #8ba0bd;
  letter-spacing: 0.05em;
}
.nw-item h3 {
  font-size: 1.28rem;
  font-weight: 800;
  color: #0c2242;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.3s ease;
}
.nw-item:hover h3 {
  color: #d2620e;
}
.nw-item .ex {
  color: #7a8ba3;
  font-size: 0.92rem;
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.nw-more {
  margin-top: auto;
  padding-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #0c2242;
  font-weight: 800;
  font-size: 0.88rem;
  align-self: flex-start;
  transition: color 0.3s ease;
}
.nw-more .ar {
  color: #e67e22;
  transition: transform 0.3s ease;
}
.nw-item:hover .nw-more {
  color: #d2620e;
}
.nw-item:hover .nw-more .ar {
  transform: translateX(5px);
}
.nw-empty {
  text-align: center;
  color: #8ba0bd;
  padding: 80px 0;
  font-size: 1.05rem;
}

/* 分页 */
.nw-pager {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 54px;
}
.nw-pg {
  min-width: 42px;
  height: 42px;
  padding: 0 8px;
  border-radius: 12px;
  border: 1.5px solid #cdd9e9;
  background: #fff;
  color: #37506f;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
  font-size: 0.9rem;
}
.nw-pg:hover {
  border-color: #12294f;
  color: #12294f;
}
.nw-pg.active {
  background: linear-gradient(120deg, #12294f, #1d4279);
  border-color: #12294f;
  color: #fff;
}

/* 新闻详情 */
.nw-detail-sec {
  background: #f5f8fc;
  padding: 96px 0 110px;
}
.nw-dwrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 336px;
  gap: 34px;
  align-items: start;
}
.nw-article {
  background: #fff;
  border: 1px solid #e6ecf5;
  border-radius: 24px;
  padding: 54px 60px 48px;
  box-shadow: 0 22px 50px -30px rgba(12, 34, 66, 0.3);
}
.nw-art-cat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
}
.nw-art-cat .chip {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 5px 16px;
  border-radius: 60px;
  color: #fff;
  background: linear-gradient(120deg, #12294f, #24518f);
}
.nw-art-cat .chip.industry {
  background: linear-gradient(120deg, #c25910, #e67e22);
}
.nw-atitle {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 800;
  color: #0c2242;
  line-height: 1.42;
  margin-bottom: 20px;
  letter-spacing: 0.3px;
}
.nw-ameta {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  padding: 16px 0 24px;
  border-top: 1px dashed #e2e9f3;
  border-bottom: 1px dashed #e2e9f3;
  margin-bottom: 34px;
  color: #93a5c0;
  font-size: 0.86rem;
}
.nw-ameta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.nw-ameta svg {
  width: 15px;
  height: 15px;
  color: #e67e22;
}
.nw-body-copy {
  color: #33465e;
  font-size: 1.03rem;
  line-height: 2.05;
}
.nw-body-copy .lead {
  color: #4b5f7a;
  font-size: 1.08rem;
  border-left: 4px solid #e67e22;
  padding: 2px 0 2px 22px;
  background: linear-gradient(90deg, rgba(230, 126, 34, 0.05), transparent);
}
.nw-body-copy p + p {
  margin-top: 20px;
}
.nw-body-copy h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: #0c2242;
  margin: 34px 0 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nw-body-copy h3::before {
  content: "";
  width: 6px;
  height: 22px;
  border-radius: 4px;
  background: linear-gradient(180deg, #e67e22, #f5a93a);
  flex-shrink: 0;
}
.nw-body-copy ul {
  margin: 6px 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.nw-body-copy ul li {
  position: relative;
  padding-left: 28px;
  list-style: none;
}
.nw-body-copy ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.7em;
  width: 9px;
  height: 9px;
  border-radius: 3px;
  background: linear-gradient(135deg, #e67e22, #f5a93a);
  transform: rotate(45deg);
}
/* 正文中由后台富文本插入的表格 / 有序列表 / 图片 */
.nw-body-copy ol { margin: 6px 0 20px; padding-left: 24px; }
.nw-body-copy table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.96rem;
  line-height: 1.6;
}
.nw-body-copy th,
.nw-body-copy td {
  border: 1px solid #dbe4ef;
  padding: 10px 14px;
  text-align: left;
  vertical-align: top;
}
.nw-body-copy th {
  background: #f2f6fb;
  font-weight: 700;
  color: #0c2242;
}
.nw-body-copy tr:nth-child(even) td { background: #fbfcfe; }
.nw-body-copy img { max-width: 100%; height: auto; border-radius: 12px; margin: 12px 0; }
.nw-body-copy table img { margin: 0; border-radius: 6px; }
.nw-pn {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 46px;
  padding-top: 28px;
  border-top: 1px dashed #e2e9f3;
}
.nw-pn a {
  display: block;
  background: #f7fafd;
  border: 1px solid #e9eef6;
  border-radius: 14px;
  padding: 16px 20px;
  transition: all 0.3s ease;
}
.nw-pn a:hover {
  border-color: rgba(230, 126, 34, 0.45);
  transform: translateY(-3px);
}
.nw-pn .lbl {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: #a0b0c8;
  margin-bottom: 6px;
  text-transform: uppercase;
}
.nw-pn .tt {
  font-size: 0.95rem;
  font-weight: 700;
  color: #1e3a5f;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.nw-pn a.next {
  text-align: right;
}

/* 详情侧栏 */
.nw-aside {
  position: sticky;
  top: 104px;
  display: grid;
  gap: 26px;
}
.nw-side {
  background: #fff;
  border: 1px solid #e6ecf5;
  border-radius: 20px;
  padding: 30px 26px;
}
.nw-side h4 {
  font-size: 1.02rem;
  font-weight: 800;
  color: #0c2242;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 2px solid #eef2f8;
  position: relative;
}
.nw-side h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 46px;
  height: 2px;
  background: linear-gradient(90deg, #e67e22, #f5a93a);
}
.nw-hot {
  display: grid;
  gap: 0;
}
.nw-hot a {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed #edf1f7;
  align-items: start;
}
.nw-hot a:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.nw-hot .no {
  font-size: 1.15rem;
  font-weight: 800;
  font-style: italic;
  color: #d3dded;
  line-height: 1.3;
  transition: color 0.3s ease;
}
.nw-hot a:hover .no {
  color: #e67e22;
}
.nw-hot .tt {
  font-size: 0.9rem;
  font-weight: 600;
  color: #37506f;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.nw-hot .dt {
  grid-column: 2;
  margin-top: -8px;
  font-size: 0.74rem;
  color: #a0b0c8;
  letter-spacing: 0.06em;
}
.nw-side-cta {
  background: linear-gradient(150deg, #0b1f3f 0%, #163a6b 70%, #1d4a86 100%);
  border: none;
  color: #fff;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.nw-side-cta::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -70px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 30px solid rgba(255, 255, 255, 0.06);
}
.nw-side-cta h4 {
  border: none;
  color: #fff;
  padding: 0;
  font-size: 1.14rem;
}
.nw-side-cta h4::after {
  display: none;
}
.nw-side-cta p {
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.8;
  margin: 12px 0 22px;
}
.nw-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(120deg, #e67e22, #f5a93a);
  color: #fff;
  border-radius: 60px;
  padding: 11px 26px;
  font-size: 0.88rem;
  font-weight: 700;
  transition: all 0.3s ease;
}
.nw-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px -12px rgba(230, 126, 34, 0.7);
}

/* 新闻 V3 响应式 */
@media (max-width: 1024px) {
  .nw-dwrap {
    grid-template-columns: 1fr;
  }
  .nw-aside {
    position: static;
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .nw-item {
    grid-template-columns: 1fr;
  }
  .nw-cover {
    min-height: 170px;
  }
  .nw-article {
    padding: 34px 24px 30px;
  }
  .nw-pn {
    grid-template-columns: 1fr;
  }
  .nw-aside {
    grid-template-columns: 1fr;
  }
  .nw-pg {
    min-width: 38px;
    height: 38px;
  }
}

/* ---------- 案例展示 Cases（V3） ---------- */
.cs-sec {
  background: #f5f8fc;
  padding: 96px 0 110px;
}
.cs-top {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 30px;
}
.cs-top .hm-kicker {
  justify-content: center;
}
.cs-top .hm-kicker::after {
  display: none;
}
.cs-top .hm-kicker::before {
  content: "";
  width: 46px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent));
}
.cs-top p.lead {
  color: #7a8ba3;
  font-size: 1rem;
  line-height: 1.9;
  margin-top: 8px;
}
.cs-mats {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 30px 0 8px;
}
.cs-mats span {
  font-size: 0.78rem;
  font-weight: 700;
  color: #37506f;
  border: 1px solid #d5e0ee;
  background: #fff;
  padding: 6px 14px;
  border-radius: 60px;
}
.cs-mats span i {
  font-style: normal;
  color: #e67e22;
}
.cs-filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 44px 0 46px;
}
.cs-cat {
  border: 1.5px solid #cdd9e9;
  background: #fff;
  color: #37506f;
  font-size: 0.92rem;
  font-weight: 700;
  padding: 10px 26px;
  border-radius: 60px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
}
.cs-cat:hover {
  border-color: #12294f;
  color: #12294f;
  transform: translateY(-2px);
}
.cs-cat.active {
  background: linear-gradient(120deg, #12294f, #1d4279);
  border-color: #12294f;
  color: #fff;
  box-shadow: 0 14px 28px -14px rgba(11, 31, 58, 0.55);
}

/* 样张瀑布 */
.cs-wall {
  columns: 3;
  column-gap: 26px;
}
.cs-item {
  position: relative;
  break-inside: avoid;
  margin: 0 0 26px;
  border-radius: 20px;
  overflow: hidden;
  cursor: zoom-in;
  border: 1px solid #e4eaf3;
  background: #fff;
  transition: all 0.35s ease;
  display: block;
  width: 100%;
}
.cs-item img {
  width: 100%;
  display: block;
  transition: transform 0.6s ease;
}
.cs-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 60px -24px rgba(12, 34, 66, 0.4);
}
.cs-item:hover img {
  transform: scale(1.05);
}
.cs-cap {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  background: linear-gradient(180deg, transparent, rgba(7, 20, 40, 0.92));
  color: #fff;
  padding: 52px 20px 18px;
  pointer-events: none;
}
.cs-cap b {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #ffc46b;
  background: rgba(230, 126, 34, 0.2);
  border: 1px solid rgba(255, 196, 107, 0.35);
  border-radius: 60px;
  padding: 3px 12px;
  margin-bottom: 8px;
}
.cs-cap span {
  display: block;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}
.cs-cap em {
  display: block;
  font-style: normal;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 2px;
}
.cs-zoom {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 3;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  color: #0c2242;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.7);
  transition: all 0.35s ease;
  pointer-events: none;
}
.cs-zoom svg {
  width: 20px;
  height: 20px;
}
.cs-item:hover .cs-zoom {
  opacity: 1;
  transform: scale(1);
}
.cs-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: #8ba0bd;
  padding: 60px 0;
}

/* Lightbox */
.cs-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(6, 15, 30, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 30px;
}
.cs-lightbox.open {
  display: flex;
  animation: csFade 0.25s ease;
}
@keyframes csFade {
  from { opacity: 0; }
  to { opacity: 1; }
}
.cs-lightbox img {
  max-width: min(92vw, 980px);
  max-height: 78vh;
  border-radius: 16px;
  box-shadow: 0 40px 90px -20px rgba(0, 0, 0, 0.7);
  object-fit: contain;
  background: #fff;
}
.cs-lb-cap {
  color: #fff;
  margin-top: 18px;
  text-align: center;
}
.cs-lb-cap b {
  color: #ffc46b;
  margin-right: 10px;
}
.cs-lb-close {
  position: absolute;
  top: 24px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: transparent;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1;
}
.cs-lb-close:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: rotate(90deg);
}

/* 案例 V3 响应式 */
@media (max-width: 1180px) {
  .cs-wall {
    columns: 2;
  }
}
@media (max-width: 640px) {
  .cs-wall {
    columns: 1;
  }
  .cs-filters {
    margin: 30px 0 34px;
  }
}

/* 页脚两列快速导航 */
.footer-links.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 20px;
}

/* ===== 中英切换入口（header 为浅色底，故用深色文字） ===== */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-left: 4px;
  padding-left: 12px;
  border-left: 1px solid rgba(15, 36, 64, 0.12);
}
.nav .nav-lang {
  padding: 4px 10px;
  border: 1px solid rgba(15, 36, 64, 0.14);
  border-radius: 3px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-light);
  transition: all 0.25s ease;
  white-space: nowrap;
}
.nav .nav-lang::after {
  display: none;
}
.nav .nav-lang:hover {
  background: #f5a93a;
  border-color: #f5a93a;
  color: #fff;
}
.nav .nav-lang.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  cursor: default;
}
@media (max-width: 900px) {
  .lang-switch {
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    margin-top: 8px;
  }
}