* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "微软雅黑", Arial, sans-serif; color: #333; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ── Header 双层结构 ── */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; }

.header-top {
  background: #fff;
  border-bottom: 1px solid #eee;
}
.header-top .container { max-width: none; padding: 0 30px; }
.header-top-inner {
  display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 20px;
}
.logo { display: flex; align-items: center; }
.logo-link { display: flex; align-items: center; gap: 14px; }
.logo-img { height: 50px; width: auto; display: block; }
.logo-text { display: flex; flex-direction: column; }
.logo-cn { font-size: 20px; font-weight: bold; color: #1a4d80; letter-spacing: 1px; }
.logo-en { font-size: 11px; color: #888; letter-spacing: 1px; margin-top: 3px; }
.header-contact { font-size: 13px; color: #888; }

/* 中英切换按钮 */
.lang-switch {
  display: flex; align-items: center; gap: 4px;
  flex-shrink: 0;
}
.lang-btn {
  background: transparent; border: none; cursor: pointer;
  font-family: inherit; font-size: 13px; color: #888;
  padding: 6px 10px; border-radius: 3px;
  transition: color 0.2s, background 0.2s;
}
.lang-btn:hover { color: #1a4d80; }
.lang-btn.active {
  color: #fff; background: #1a4d80; font-weight: 500;
}
.lang-divider { color: #ccc; font-size: 13px; user-select: none; }

.nav { background: #1a4d80; }
.nav-inner { display: flex; }
.nav > .nav-inner > ul { display: flex; width: 100%; }
.nav > .nav-inner > ul > li { position: relative; flex: 1; text-align: center; border-right: 1px solid rgba(255,255,255,0.15); }
.nav > .nav-inner > ul > li:last-child { border-right: none; }
.nav > .nav-inner > ul > li > a {
  display: block; padding: 0 10px; line-height: 45px;
  font-size: 15px; color: #fff;
  position: relative; overflow: hidden;
}
.nav > .nav-inner > ul > li > a::after {
  content: ''; position: absolute; bottom: 0; left: 50%; right: 50%;
  height: 3px; background: #fff; transition: left 0.3s ease-in-out, right 0.3s ease-in-out;
}
.nav > .nav-inner > ul > li > a:hover::after,
.nav > .nav-inner > ul > li > a.active::after { left: 0; right: 0; }

.sub-menu {
  display: none; position: absolute; top: 45px; left: 0;
  background: rgba(30,30,30,0.92); min-width: 130px; z-index: 200;
}
.sub-menu li a {
  display: block; padding: 10px 18px; font-size: 14px; color: #ddd;
  transition: color 0.2s, background 0.2s;
}
.sub-menu li a:hover { color: #fff; background: #1a4d80; }
.has-sub:hover .sub-menu { display: block; }

/* ── Banner 轮播 ── */
.banner { margin-top: 115px; }
.banner-swiper { height: 520px; }
.banner-slide {
  background-size: cover; background-position: center;
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.slide-aerial {
  background-image:
    linear-gradient(90deg, rgba(14,53,89,0.78) 0%, rgba(14,53,89,0.45) 40%, rgba(14,53,89,0.05) 75%, rgba(14,53,89,0) 100%),
    url('images/banner-aerial.jpg');
  background-size: cover;
  background-position: center;
  justify-content: flex-start;
}
.slide-factory {
  background-image:
    linear-gradient(90deg, rgba(14,53,89,0.82) 0%, rgba(14,53,89,0.55) 40%, rgba(14,53,89,0.15) 75%, rgba(14,53,89,0.05) 100%),
    url('images/banner-factory.jpg');
  background-size: cover;
  background-position: center;
  justify-content: flex-start;
}
.slide-quality {
  background-image:
    linear-gradient(90deg, rgba(14,53,89,0.82) 0%, rgba(14,53,89,0.55) 40%, rgba(14,53,89,0.15) 75%, rgba(14,53,89,0.05) 100%),
    url('images/banner-quality.jpg');
  background-size: cover;
  background-position: center;
  justify-content: flex-start;
}
.slide-future {
  background-image:
    linear-gradient(90deg, rgba(14,53,89,0.82) 0%, rgba(14,53,89,0.55) 40%, rgba(14,53,89,0.15) 75%, rgba(14,53,89,0.05) 100%),
    url('images/banner-future.jpg');
  background-size: cover;
  background-position: center;
  justify-content: flex-start;
}
.slide-aerial .banner-content-left,
.slide-factory .banner-content-left,
.slide-quality .banner-content-left,
.slide-future .banner-content-left {
  text-align: left;
  margin-left: 8%;
  max-width: 560px;
}
.slide-aerial .banner-content-left h1,
.slide-factory .banner-content-left h1,
.slide-quality .banner-content-left h1,
.slide-future .banner-content-left h1 {
  font-size: 46px; letter-spacing: 3px; line-height: 1.25;
  text-shadow: 0 2px 12px rgba(0,0,0,0.35);
}
.slide-aerial .banner-content-left p,
.slide-factory .banner-content-left p,
.slide-quality .banner-content-left p,
.slide-future .banner-content-left p {
  letter-spacing: 1.5px;
  text-shadow: 0 1px 6px rgba(0,0,0,0.4);
}
.banner-content { text-align: center; color: #fff; }
.banner-content { text-align: center; color: #fff; }
.banner-content h1 { font-size: 48px; font-weight: bold; margin-bottom: 16px; letter-spacing: 4px; }
.banner-content p { font-size: 18px; margin-bottom: 32px; opacity: 0.9; letter-spacing: 2px; }
.btn-outline {
  display: inline-block; padding: 12px 40px;
  border: 2px solid #fff; color: #fff; font-size: 15px;
  transition: all 0.3s ease-in-out;
}
.btn-outline:hover { background: #fff; color: #1a4d80; }

/* 轮播右下角"联系我们"按钮 */
.banner-contact-btn {
  position: absolute;
  right: 48px;
  bottom: 40px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  background: rgba(255, 255, 255, 0.12);
  border: 1.5px solid rgba(255, 255, 255, 0.85);
  color: #fff;
  font-size: 15px;
  letter-spacing: 1px;
  border-radius: 999px;
  text-decoration: none;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
  transition: all 0.3s ease-in-out;
  z-index: 5;
}
.banner-contact-btn:hover {
  background: #1a4d80;
  border-color: #1a4d80;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(26, 77, 128, 0.45);
}
.banner-contact-btn svg {
  transition: transform 0.3s ease-in-out;
}
.banner-contact-btn:hover svg {
  transform: translateX(4px);
}
@media (max-width: 768px) {
  .banner-contact-btn {
    right: 16px;
    bottom: 16px;
    padding: 9px 18px;
    font-size: 13px;
  }
}

.swiper-button-prev, .swiper-button-next { color: #fff; }
.swiper-pagination-bullet-active { background: #fff; }

/* ── Sections ── */
.section { padding: 80px 0; }
.section-gray { background: #f5f5f5; }

.section-title { text-align: center; margin-bottom: 55px; }
.section-title h2 { font-size: 36px; font-weight: bold; color: #444; margin-bottom: 0; }
.title-line { width: 36px; height: 6px; background: #1a4d80; margin: 14px auto 12px; }
.section-title span { font-size: 13px; color: #999; letter-spacing: 3px; }

/* ── 产品中心：图片覆盖卡片 ── */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; background: transparent; }
.product-card { position: relative; overflow: hidden; height: 280px; cursor: pointer; background: #f7f7f7; border-radius: 4px; }
.product-img {
  position: absolute; inset: 0;
  background-size: cover; background-position: center; background-repeat: no-repeat;
  background-color: #f7f7f7;
  transition: transform 0.5s ease-in-out;
}
.product-card:hover .product-img { transform: scale(1.08); }
.product-overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: #fff; padding: 20px; text-align: center;
  background: rgba(26,77,128,0); transition: background 0.4s;
}
.product-card:hover .product-overlay { background: rgba(26,77,128,0.85); }
.product-line-h {
  width: 60px; height: 1px; background: rgba(255,255,255,0.6);
  margin-bottom: 14px; opacity: 0; transition: opacity 0.4s, width 0.5s, height 0.5s;
}
.product-card:hover .product-line-h { opacity: 1; }
.product-line-v {
  width: 1px; height: 0; background: rgba(255,255,255,0.6);
  margin: 10px 0; transition: height 0.5s;
}
.product-card:hover .product-line-v { height: 30px; }
.product-overlay h3 {
  font-size: 20px; font-weight: 600;
  color: #fff; opacity: 1;
  position: absolute; bottom: 0; left: 0; right: 0;
  margin: 0; padding: 50px 16px 20px;
  letter-spacing: 4px;
  text-align: center;
  background: linear-gradient(to top,
    rgba(0,0,0,0.65) 0%,
    rgba(0,0,0,0.35) 55%,
    rgba(0,0,0,0) 100%);
  transition: opacity 0.4s;
}
.product-overlay h3::after {
  content: ''; display: block;
  width: 28px; height: 2px; background: #fff;
  margin: 10px auto 0;
  opacity: 0.85;
}
.product-overlay h3 { opacity: 1; }
.product-card:hover .product-overlay h3 { opacity: 0; }
.product-overlay p { font-size: 13px; opacity: 0; line-height: 1.7; transition: opacity 0.3s 0.1s; color: #fff; }
.product-card:hover .product-overlay p { opacity: 1; }
.btn-border {
  display: inline-block; margin-top: 14px; padding: 7px 22px;
  border: 1px solid rgba(255,255,255,0.8); color: #fff; font-size: 13px;
  opacity: 0; transition: all 0.3s ease-in-out;
}
.product-card:hover .btn-border { opacity: 1; }
.btn-border:hover { background: #fff; color: #1a4d80; }

/* ── 关于我们：左图右文 ── */
.about-wrap { display: flex; }
.about-img { width: 50%; overflow: hidden; }
.about-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.about-right {
  width: 50%; background: #f0f0f0; padding: 60px 50px;
  display: flex; flex-direction: column; justify-content: center;
}
.about-sub { font-size: 14px; color: #1a4d80; letter-spacing: 3px; margin-bottom: 10px; }
.about-title { font-size: 26px; font-weight: bold; color: #222; margin-bottom: 20px; }
.about-desc { font-size: 15px; color: #555; line-height: 1.9; margin-bottom: 14px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.about-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid #ddd; border-bottom: 2px solid #ddd;
  margin: 24px 0;
}
.stat-item { text-align: center; padding: 18px 8px; border-right: 1px solid #ddd; }
.stat-item:last-child { border-right: none; }
.stat-num { display: block; font-size: 32px; font-weight: bold; color: #1a4d80; }
.stat-unit { font-size: 13px; color: #888; }
.stat-label { display: block; font-size: 12px; color: #999; margin-top: 4px; }

.btn-primary {
  display: inline-block; padding: 14px 36px;
  background: #1a4d80; color: #fff; font-size: 15px;
  border: 2px solid #1a4d80; cursor: pointer; transition: all 0.3s ease-in-out;
  font-family: inherit;
}
.btn-primary:hover { background: transparent; color: #1a4d80; }

/* ── 质量保证：hover 变色卡片 ── */
.quality-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.quality-card {
  text-align: center; padding: 40px 20px; background: #fff;
  box-shadow: 0 0 5px #eee; cursor: default;
  transition: background 0.3s, color 0.3s;
}
.quality-card:hover { background: #1a4d80; }
.quality-icon { font-size: 38px; margin-bottom: 16px; }
.quality-card h4 { font-size: 17px; margin-bottom: 12px; color: #222; transition: color 0.3s; }
.quality-card p { font-size: 14px; color: #666; line-height: 1.7; transition: color 0.3s; }
.quality-card:hover h4, .quality-card:hover p { color: #fff; }

/* ── 合作客户 ── */
.clients-grid {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.client-logo {
  display: flex; align-items: center; justify-content: center;
  height: 130px; padding: 22px 18px;
  border: 1px solid #e8e8e8;
  background: #fff;
  transition: all 0.3s ease;
  position: relative;
}
.client-logo img {
  max-width: 100%; max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}
.client-logo:hover {
  box-shadow: 0 6px 20px rgba(26,77,128,0.18);
  z-index: 2;
  border-color: #1a4d80;
}
.client-logo:hover img {
  transform: scale(1.06);
}
.client-logo span { font-size: 14px; color: #666; font-weight: bold; }

/* ── 新闻资讯 ── */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: #fff; overflow: hidden; box-shadow: 0 0 5px #eee; transition: box-shadow 0.2s; }
.news-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.1); }
.news-img { height: 180px; background-size: cover; background-position: center; }
.news-body { padding: 24px; border-top: 3px solid #1a4d80; }
.news-date { font-size: 13px; color: #1a4d80; margin-bottom: 10px; }
.news-card h4 { font-size: 16px; color: #222; margin-bottom: 10px; line-height: 1.5; }
.news-card p { font-size: 14px; color: #666; line-height: 1.7; margin-bottom: 14px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-more { font-size: 13px; color: #1a4d80; }
.news-more:hover { text-decoration: underline; }

/* ── 联系我们 ── */
.contact-content { display: flex; gap: 60px; }
.contact-info { flex: 1; }
.contact-item { display: flex; gap: 16px; margin-bottom: 24px; align-items: flex-start; }
.contact-icon { font-size: 22px; margin-top: 2px; }
.contact-item strong { display: block; font-size: 15px; color: #222; margin-bottom: 4px; }
.contact-item p { font-size: 14px; color: #666; }
.contact-form { flex: 1; }
.contact-form h3 { font-size: 20px; margin-bottom: 20px; color: #222; }
.contact-form input, .contact-form textarea {
  display: block; width: 100%; padding: 11px 14px; margin-bottom: 14px;
  border: 1px solid #ddd; font-size: 14px; font-family: inherit;
  outline: none; transition: border-color 0.2s;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: #1a4d80; }
.contact-form button { width: 100%; border: none; font-family: inherit; cursor: pointer; }

/* ── Footer 深色双层 ── */
.footer-main { background: #2a2a3e; padding: 60px 0 50px; }
.footer-inner { display: grid; grid-template-columns: 1.3fr 1fr 1.2fr 1fr 1fr 1.5fr; gap: 32px; }
.footer-col h4 {
  color: #fff; font-size: 16px; margin-bottom: 18px;
  padding-bottom: 10px; border-bottom: 1px solid #3d3d55;
}
.footer-col p { font-size: 14px; line-height: 1.9; color: #8f99b1; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 14px; color: #8f99b1; transition: color 0.2s; }
.footer-col ul li a:hover { color: #fff; }
.footer-col p a { color: inherit; }
.footer-col p a:hover { color: #fff; }
.footer-qr { margin-top: 20px; }
.qr-placeholder {
  width: 80px; height: 80px; border: 1px solid #3d3d55;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: #8f99b1;
}
.footer-bottom {
  background: #1a4d80; padding: 16px 20px; text-align: center;
  font-size: 13px; color: rgba(255,255,255,0.85);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .quality-grid { grid-template-columns: repeat(2, 1fr); }
  .clients-grid { grid-template-columns: repeat(3, 1fr); }
  .about-wrap { flex-direction: column; }
  .about-img, .about-right { width: 100%; }
  .about-stats { grid-template-columns: repeat(4, 1fr); }
  .contact-content { flex-direction: column; }
  .footer-inner { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 600px) {
  .banner-content h1 { font-size: 28px; }
  .products-grid, .news-grid, .quality-grid { grid-template-columns: 1fr; }
  .clients-grid { grid-template-columns: repeat(2, 1fr); }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .nav > .nav-inner > ul { display: none; }
  .footer-inner { grid-template-columns: 1fr; }
  .banner { margin-top: 70px; }
  .logo-img { height: 40px; }
  .logo-cn { font-size: 15px; }
  .logo-en { display: none; }
  .header-contact { display: none; }
}

/* ══════════════════════════════════════
   子页面公共样式
══════════════════════════════════════ */

/* 页面 Banner */
.page-banner {
  margin-top: 115px; background: linear-gradient(135deg, #1a4d80, #0e3559);
  padding: 50px 0; color: #fff;
}
.page-banner h1 { font-size: 32px; font-weight: bold; margin-bottom: 10px; }
.breadcrumb { font-size: 14px; opacity: 0.8; }
.breadcrumb a { color: #fff; }
.breadcrumb a:hover { text-decoration: underline; }

/* 内页双栏布局 */
.inner-layout {
  max-width: 1200px; margin: 40px auto 60px; padding: 0 20px;
  display: flex; gap: 30px; align-items: flex-start;
}

/* 左侧子导航 */
.side-nav { width: 200px; flex-shrink: 0; }
.side-nav h3 {
  background: #1a4d80; color: #fff; padding: 14px 18px;
  font-size: 16px; font-weight: bold;
}
.side-nav ul { border: 1px solid #e8e8e8; border-top: none; }
.side-nav ul li a {
  display: block; padding: 12px 18px; font-size: 14px; color: #555;
  border-bottom: 1px solid #f0f0f0; transition: all 0.2s;
}
.side-nav ul li a:hover, .side-nav ul li a.active {
  color: #1a4d80; background: #eaf2fa; padding-left: 24px;
}
.side-nav ul li a em { font-style: normal; color: #999; font-size: 12px; margin-left: 4px; }
.side-nav ul li a.active em, .side-nav ul li a:hover em { color: #1a4d80; }
.side-nav .sub-cat { border: none; background: #fafbfd; }
.side-nav .sub-cat li a {
  padding: 9px 18px 9px 32px; font-size: 13px; color: #666;
  border-bottom: 1px solid #eef2f7;
}
.side-nav .sub-cat li a::before {
  content: '·'; margin-right: 8px; color: #1a4d80;
}
.side-nav .sub-cat li a:hover, .side-nav .sub-cat li a.active {
  background: #eaf2fa; padding-left: 38px; color: #1a4d80;
}
.side-nav .sub-cat li:last-child a { border-bottom: none; }

/* 右侧内容区 */
.inner-content { flex: 1; min-width: 0; }
.inner-section { margin-bottom: 50px; }
.inner-title {
  font-size: 22px; color: #333; padding-bottom: 12px;
  border-bottom: 2px solid #1a4d80; margin-bottom: 28px;
}
.inner-title span { font-size: 13px; color: #999; font-weight: normal; margin-left: 10px; letter-spacing: 2px; }

/* 公司简介(重构版) */
.profile-hero {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px;
  align-items: stretch;
  margin-bottom: 36px;
}
.profile-hero-img {
  width: 100%; height: 100%; min-height: 260px;
  object-fit: cover;
  border-radius: 2px;
  box-shadow: 0 8px 28px rgba(26,77,128,0.12);
}
.profile-hero-text {
  display: flex; flex-direction: column; justify-content: center;
  padding: 6px 0;
}
.profile-tagline {
  font-size: 12px; letter-spacing: 5px; color: #1a4d80;
  text-transform: uppercase; margin-bottom: 14px;
  position: relative; padding-left: 36px;
}
.profile-tagline::before {
  content: ''; position: absolute; left: 0; top: 50%;
  width: 24px; height: 1px; background: #1a4d80;
}
.profile-name {
  font-size: 28px; color: #1a2738; font-weight: 700;
  line-height: 1.3; margin-bottom: 18px; letter-spacing: 1px;
}
.profile-lead {
  font-size: 15px; color: #555; line-height: 2;
  letter-spacing: 0.3px;
}
.profile-lead em {
  font-style: normal; color: #1a4d80; font-weight: 600;
  font-size: 16px;
}

.profile-stats {
  display: grid; grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid #e2e8f0; border-bottom: 1px solid #e2e8f0;
  padding: 28px 0; margin-bottom: 44px;
}
.profile-stat {
  text-align: center; border-right: 1px solid #e8eef5;
}
.profile-stat:last-child { border-right: none; }
.profile-stat strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 36px; font-weight: 700; color: #1a4d80;
  line-height: 1; letter-spacing: 1px;
}
.profile-stat strong sup {
  font-size: 16px; font-weight: 500; margin-left: 2px;
  vertical-align: super;
}
.profile-stat span {
  display: block; margin-top: 10px;
  font-size: 12px; color: #8a96a8; letter-spacing: 1.5px;
}

.profile-chapters {
  display: flex; flex-direction: column; gap: 32px;
}
.profile-chapter {
  display: grid; grid-template-columns: 92px 1fr; gap: 24px;
  padding: 26px 0 28px;
  border-top: 1px solid #eef2f7;
  position: relative;
}
.profile-chapter:first-child { border-top: none; padding-top: 4px; }
.profile-num {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 44px; font-weight: 700; color: #1a4d80;
  line-height: 1; letter-spacing: 2px;
  opacity: 0.85;
  border-left: 2px solid #1a4d80;
  padding-left: 14px;
}
.profile-body h4 {
  font-size: 18px; color: #1a2738; font-weight: 700;
  margin-bottom: 12px; letter-spacing: 1px;
}
.profile-body > p {
  font-size: 15px; color: #555; line-height: 1.95;
  letter-spacing: 0.3px;
  margin-bottom: 14px;
}
.profile-body em {
  font-style: normal; color: #1a4d80; font-weight: 600;
}

.capacity-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
  margin-top: 8px;
}
.capacity-item {
  background: linear-gradient(135deg, #f4f8fc 0%, #eaf2fa 100%);
  padding: 22px 24px;
  border-left: 3px solid #1a4d80;
}
.capacity-item strong {
  display: block;
  font-family: Georgia, serif;
  font-size: 30px; font-weight: 700; color: #1a4d80;
  line-height: 1;
}
.capacity-item strong small {
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 13px; font-weight: 500; color: #5a8fc4;
  margin-left: 6px; letter-spacing: 1px;
}
.capacity-item span {
  display: block; margin-top: 8px;
  font-size: 13px; color: #6a7686; letter-spacing: 1px;
}

.cert-row, .partner-row {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 14px;
}
.cert-chip {
  display: inline-flex; align-items: center;
  padding: 8px 18px;
  border: 1px solid #1a4d80;
  color: #1a4d80;
  font-size: 13px; font-weight: 600;
  letter-spacing: 1px;
  background: #fff;
  transition: all 0.2s;
}
.cert-chip:hover { background: #1a4d80; color: #fff; }
.partner-chip {
  display: inline-flex; align-items: center;
  padding: 8px 18px;
  background: #f4f8fc;
  color: #1a2738;
  font-size: 13px; font-weight: 500;
  letter-spacing: 0.5px;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.partner-chip:hover {
  background: #1a4d80; color: #fff;
  border-bottom-color: #2e6fab;
}

.profile-quote {
  position: relative;
  padding: 8px 0 8px 22px;
  border-left: 3px solid #1a4d80;
  font-size: 15px; color: #444; line-height: 2;
  font-style: italic;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #f4f8fc 0%, transparent 100%);
}

@media (max-width: 900px) {
  .profile-hero { grid-template-columns: 1fr; gap: 24px; }
  .profile-hero-img { min-height: 200px; }
  .profile-stats { grid-template-columns: repeat(2, 1fr); padding: 18px 0; }
  .profile-stat { padding: 14px 8px; border-bottom: 1px solid #e8eef5; }
  .profile-stat:nth-child(2n) { border-right: none; }
  .capacity-grid { grid-template-columns: 1fr; }
  .profile-chapter { grid-template-columns: 60px 1fr; gap: 14px; }
  .profile-num { font-size: 32px; padding-left: 10px; }
}

/* 企业文化(重构版) */
.culture-cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.culture-card {
  background: #fff;
  border: 1px solid #eef2f7;
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  display: flex; flex-direction: column;
}
.culture-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(26,77,128,0.15);
}
.culture-cover {
  height: 200px;
  background-size: cover; background-position: center;
  position: relative;
  transition: transform 0.6s ease;
}
.culture-card:hover .culture-cover { transform: scale(1.06); }
.culture-cover::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(14,53,89,0) 40%, rgba(14,53,89,0.55) 100%);
}
.culture-body {
  padding: 28px 26px 32px;
  flex: 1; display: flex; flex-direction: column;
}
.culture-en {
  font-size: 11px; letter-spacing: 4px; color: #1a4d80;
  font-weight: 600; margin-bottom: 8px;
}
.culture-body h4 {
  font-size: 22px; color: #1a2738; font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 14px;
  position: relative; padding-bottom: 14px;
}
.culture-body h4::after {
  content: ''; position: absolute; left: 0; bottom: 0;
  width: 32px; height: 2px; background: #1a4d80;
}
.culture-body p {
  font-size: 14px; color: #5a6878; line-height: 1.95;
  letter-spacing: 0.3px;
}

@media (max-width: 900px) {
  .culture-cards { grid-template-columns: 1fr; }
}

/* 厂房厂貌 */
.factory-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.factory-item { overflow: hidden; cursor: pointer; }
.factory-item img {
  width: 100%; height: 200px; object-fit: cover; display: block;
  transition: transform 0.4s;
}
.factory-item:hover img { transform: scale(1.05); }
.factory-item span {
  display: block; text-align: center; padding: 8px;
  font-size: 13px; color: #666; background: #f7f7f7;
}

/* 荣誉资质 */
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.honor-card { text-align: center; }
.honor-cert {
  border: 1px solid #e8e8e8; margin-bottom: 10px;
  transition: box-shadow 0.2s;
}
.honor-cert:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.cert-placeholder {
  height: 140px; display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: bold; color: #1a4d80; background: #eaf2fa;
}
.honor-card p { font-size: 13px; color: #666; }

/* 证书卡片（PDF 链接） */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cert-card {
  display: block; text-decoration: none; color: inherit;
  background: #fff; border: 1px solid #e6ebf2; border-radius: 4px;
  overflow: hidden; transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}
.cert-card:hover {
  border-color: #1a4d80;
  box-shadow: 0 10px 26px rgba(26,77,128,0.12);
  transform: translateY(-3px);
}
.cert-thumb {
  height: 220px; background: #f7f9fc;
  display: flex; align-items: center; justify-content: center;
  padding: 12px; box-sizing: border-box;
  border-bottom: 1px solid #f0f3f7;
}
.cert-thumb img {
  max-width: 100%; max-height: 100%; object-fit: contain;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.cert-info { padding: 14px 14px 16px; }
.cert-info h4 {
  font-size: 14px; color: #222; margin-bottom: 6px;
  line-height: 1.5; min-height: 42px;
}
.cert-info span { font-size: 12px; color: #1a4d80; }

/* 专利成果 */
.patent-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.patent-item {
  display: flex; align-items: stretch;
  background: #fff; border: 1px solid #e6ebf2; border-radius: 4px;
  overflow: hidden; transition: box-shadow 0.2s, transform 0.2s;
}
.patent-item:hover { box-shadow: 0 6px 18px rgba(0,0,0,0.06); transform: translateY(-2px); }
.patent-num {
  flex-shrink: 0; width: 64px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: bold; color: #fff;
  background: linear-gradient(135deg, #1a4d80 0%, #2c6db5 100%);
  letter-spacing: 1px;
}
.patent-body { padding: 16px 18px; flex: 1; min-width: 0; }
.patent-body h4 { font-size: 15px; color: #222; margin-bottom: 6px; line-height: 1.5; }
.patent-meta { font-size: 12px; color: #999; }

/* 专利成果 - 空状态 */
.patent-empty {
  text-align: center; padding: 60px 30px;
  background: #f7f9fc; border: 1px dashed #cfd8e3; border-radius: 6px;
}
.patent-empty-icon { font-size: 56px; opacity: 0.45; margin-bottom: 14px; }
.patent-empty h4 { font-size: 17px; color: #555; margin-bottom: 8px; font-weight: 500; }
.patent-empty p { font-size: 13px; color: #999; line-height: 1.7; }

/* 首页 认证专利预览 */
.cert-preview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cert-preview-card {
  display: block; text-decoration: none;
  background: #fff; border: 1px solid #e6ebf2; border-radius: 6px;
  padding: 36px 28px; text-align: center;
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}
.cert-preview-card:hover {
  border-color: #1a4d80; box-shadow: 0 10px 28px rgba(26,77,128,0.10);
  transform: translateY(-4px);
}
.cert-preview-icon {
  font-size: 42px; margin-bottom: 14px;
  width: 80px; height: 80px; line-height: 80px;
  margin-left: auto; margin-right: auto;
  background: #eaf2fa; border-radius: 50%;
}
.cert-preview-card h4 { font-size: 18px; color: #222; margin-bottom: 10px; }
.cert-preview-card p { font-size: 13px; color: #666; line-height: 1.8; margin-bottom: 14px; }
.cert-preview-more { font-size: 13px; color: #1a4d80; }

/* 产品列表 */
.prod-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.prod-item { border: 1px solid #eee; overflow: hidden; transition: box-shadow 0.2s, transform 0.2s; background: #fff; }
.prod-item:hover { box-shadow: 0 6px 18px rgba(26,77,128,0.12); transform: translateY(-2px); }
.prod-img {
  height: 200px;
  background-size: contain; background-position: center; background-repeat: no-repeat;
  background-color: #f7f9fc;
}
.prod-info { padding: 14px 16px; border-top: 1px solid #f0f0f0; }
.prod-info h4 { font-size: 15px; color: #222; margin-bottom: 6px; }
.prod-info p { font-size: 12px; color: #1a4d80; line-height: 1.6; font-family: Consolas, Menlo, monospace; }

/* 质量保证 */
.text-block { margin-bottom: 24px; }
.text-block p { font-size: 15px; color: #555; line-height: 1.9; margin-bottom: 12px; }
.func-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 24px; }
.func-card {
  padding: 24px 18px; background: #f7f7f7; border-left: 3px solid #1a4d80;
  transition: background 0.2s;
}
.func-card:hover { background: #eaf2fa; }
.func-card h4 { font-size: 15px; color: #222; margin-bottom: 10px; }
.func-card p { font-size: 13px; color: #666; line-height: 1.7; }

.equip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* 检测中心：双图展示 */
.center-gallery {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  margin: 32px 0 48px;
}
.center-fig {
  position: relative; margin: 0; overflow: hidden;
  aspect-ratio: 16 / 10; border-radius: 4px;
}
.center-fig img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s ease;
}
.center-fig:hover img { transform: scale(1.05); }
.center-fig figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 14px 18px; color: #fff; font-size: 14px;
  background: linear-gradient(transparent, rgba(0,0,0,0.65));
  letter-spacing: 0.5px;
}
@media (max-width: 768px) {
  .center-gallery { grid-template-columns: 1fr; }
}
.equip-card {
  padding: 0; text-align: center; border: 1px solid #eee;
  transition: all 0.2s; overflow: hidden;
  display: flex; flex-direction: column;
}
.equip-card:hover { background: #1a4d80; border-color: #1a4d80; }
.equip-card:hover h4, .equip-card:hover p { color: #fff; }
.equip-img {
  width: 100%; aspect-ratio: 4 / 3; background: #f5f6f8;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; padding: 14px; box-sizing: border-box;
  border-bottom: 1px solid #ececec;
}
.equip-img img {
  max-width: 100%; max-height: 100%; width: auto; height: auto;
  object-fit: contain; mix-blend-mode: multiply;
  transition: transform 0.4s ease;
}
.equip-card:hover .equip-img img { transform: scale(1.05); }
.equip-icon {
  font-size: 56px;
  width: 100%; aspect-ratio: 4 / 3; background: #f5f6f8;
  display: flex; align-items: center; justify-content: center;
  margin: 0; border-bottom: 1px solid #ececec;
}
.equip-body { padding: 20px 18px 24px; }
.equip-card h4 { font-size: 15px; color: #222; margin-bottom: 8px; transition: color 0.2s; }
.equip-card p { font-size: 13px; color: #666; line-height: 1.6; transition: color 0.2s; }

.system-steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.step-item { padding: 24px; border: 1px solid #eee; position: relative; transition: all 0.25s ease; }
.step-item:hover { border-color: #1a4d80; box-shadow: 0 6px 20px rgba(26,77,128,0.08); transform: translateY(-2px); }
.step-num {
  font-size: 36px; font-weight: bold; color: #cfe0ef;
  position: absolute; top: 16px; right: 16px; line-height: 1;
}
.step-item h4 { font-size: 16px; color: #1a4d80; margin-bottom: 10px; }
.step-item p { font-size: 14px; color: #666; line-height: 1.7; }

/* 质量体系：三大支柱 */
.system-pillars {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin: 24px 0 40px;
}
.pillar-card {
  padding: 28px 24px; background: #f7f9fc; border-top: 3px solid #1a4d80;
  transition: all 0.25s ease;
}
.pillar-card:hover { background: #fff; box-shadow: 0 8px 24px rgba(26,77,128,0.1); transform: translateY(-3px); }
.pillar-icon { font-size: 32px; margin-bottom: 14px; }
.pillar-card h4 { font-size: 17px; color: #1a4d80; margin-bottom: 14px; font-weight: 600; }
.pillar-card ul { list-style: none; padding: 0; margin: 0; }
.pillar-card li {
  position: relative; padding-left: 16px; font-size: 13.5px;
  color: #555; line-height: 1.9;
}
.pillar-card li::before {
  content: ''; position: absolute; left: 0; top: 11px;
  width: 6px; height: 6px; background: #1a4d80; border-radius: 50%;
}

/* 二级标题 */
.sub-title {
  font-size: 20px; color: #222; margin: 8px 0 20px;
  padding-left: 12px; border-left: 4px solid #1a4d80;
  letter-spacing: 1px;
}

/* 新闻列表 */
.news-list { display: flex; flex-direction: column; gap: 24px; }
.news-list-item {
  display: flex; gap: 20px; padding: 20px; border: 1px solid #eee;
  transition: box-shadow 0.2s;
}
.news-list-item:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.08); }
.news-list-img {
  width: 180px; flex-shrink: 0; background-size: cover; background-position: center;
  min-height: 120px;
}
.news-list-body { flex: 1; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.news-tag {
  font-size: 12px; padding: 2px 10px; color: #fff;
}
.news-tag.company { background: #1a4d80; }
.news-tag.industry { background: #5a8fc4; }
.news-date { font-size: 13px; color: #999; }
.news-list-body h4 { font-size: 16px; color: #222; margin-bottom: 8px; line-height: 1.5; }
.news-list-body p { font-size: 14px; color: #666; line-height: 1.7; margin-bottom: 12px; }

/* 定制服务专区 */
.section-lead { color: #666; font-size: 14px; line-height: 1.8; margin-bottom: 24px; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card {
  display: block; text-decoration: none;
  background: #fff; border: 1px solid #e6ebf2; border-radius: 4px;
  overflow: hidden; transition: box-shadow 0.2s, transform 0.2s;
}
.case-card:hover { box-shadow: 0 8px 22px rgba(0,0,0,0.08); transform: translateY(-3px); }
.case-img {
  height: 180px; background: #f7f9fc;
  display: flex; align-items: center; justify-content: center;
  padding: 16px; box-sizing: border-box;
}
.case-img img { max-width: 100%; max-height: 100%; object-fit: contain; }
.case-card h4 { font-size: 15px; color: #222; text-align: center; padding: 14px 12px; margin: 0; border-top: 1px solid #f0f3f7; }
.case-card:hover h4 { color: #1a4d80; }

/* Lightbox 图片放大 */
.lightbox {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.88);
  display: none; align-items: center; justify-content: center;
  padding: 40px;
}
.lightbox.active { display: flex; flex-direction: column; }
.lightbox-img {
  max-width: 90vw; max-height: 80vh; object-fit: contain;
  background: #fff; border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
.lightbox-caption {
  margin-top: 16px; color: #fff; font-size: 14px;
  text-align: center; max-width: 90vw;
}
.lightbox-close {
  position: absolute; top: 20px; right: 30px;
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.1); color: #fff;
  border: 1px solid rgba(255,255,255,0.3); border-radius: 50%;
  font-size: 28px; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s;
}
.lightbox-close:hover { background: rgba(255,255,255,0.25); }
.quote-form { margin-top: 8px; }
.quote-form .form-field { margin-bottom: 16px; }
.quote-form label {
  display: block; font-size: 13px; color: #333;
  margin-bottom: 6px; font-weight: 500;
}
.quote-form label em { color: #d33; font-style: normal; margin-left: 2px; }
.quote-form input, .quote-form textarea {
  display: block; width: 100%; padding: 11px 14px;
  border: 1px solid #ddd; font-size: 14px; font-family: inherit;
  outline: none; transition: border-color 0.2s; box-sizing: border-box;
}
.quote-form input:focus, .quote-form textarea:focus { border-color: #1a4d80; }
.quote-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.quote-form button {
  border: none; font-family: inherit; cursor: pointer;
  padding: 14px 56px; font-size: 15px; margin: 8px auto 0;
  display: block;
}

/* 联系我们页 */
.contact-page-wrap { display: grid; grid-template-columns: 1fr 320px; gap: 32px; align-items: start; }
.contact-page-info {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
}
.contact-page-info .contact-item {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 18px 18px; margin-bottom: 0;
  background: #fff; border: 1px solid #e6ebf2; border-radius: 6px;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.contact-page-info .contact-item:hover {
  border-color: #1a4d80; box-shadow: 0 4px 14px rgba(26,77,128,0.08);
}
.contact-page-info .contact-icon {
  flex-shrink: 0;
  width: 38px; height: 38px; line-height: 38px; text-align: center;
  font-size: 18px; margin-top: 0;
  background: #eaf2fa; color: #1a4d80; border-radius: 50%;
}
.contact-page-info .contact-item > div { min-width: 0; flex: 1; }
.contact-page-info .contact-item strong {
  display: block; font-size: 12px; color: #999; font-weight: 500;
  margin-bottom: 4px; letter-spacing: 0.5px;
}
.contact-page-info .contact-item p {
  font-size: 14px; color: #222; line-height: 1.5;
  word-break: break-all;
}
.contact-page-info .contact-item a { color: #1a4d80; text-decoration: none; }
.contact-page-info .contact-item a:hover { text-decoration: underline; }

.wechat-qr-box {
  background: #fff; border: 1px solid #e6ebf2; border-radius: 6px;
  padding: 24px 20px; text-align: center;
}
.wechat-qr-box img {
  width: 180px; height: 180px; object-fit: contain;
  display: block; margin: 0 auto;
  padding: 8px; background: #fff;
  border: 1px solid #eef1f5; border-radius: 4px;
}
.wechat-qr-box p {
  margin: 14px 0 4px; color: #222; font-size: 15px; font-weight: 500;
}
.wechat-qr-sub { display: block; color: #999; font-size: 12px; }

.contact-form-page input, .contact-form-page textarea {
  display: block; width: 100%; padding: 11px 14px; margin-bottom: 14px;
  border: 1px solid #ddd; font-size: 14px; font-family: inherit;
  outline: none; transition: border-color 0.2s;
}
.contact-form-page input:focus, .contact-form-page textarea:focus { border-color: #1a4d80; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-row input { margin-bottom: 0; }
.contact-form-page { margin-top: 4px; }
.contact-form-page button { border: none; font-family: inherit; cursor: pointer; padding: 14px 48px; }

/* Responsive 子页面 */
@media (max-width: 900px) {
  .inner-layout { flex-direction: column; }
  .side-nav { width: 100%; }
  .culture-grid, .func-grid, .equip-grid { grid-template-columns: repeat(2, 1fr); }
  .honor-grid, .case-grid, .cert-preview-grid, .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .patent-grid { grid-template-columns: 1fr; }
  .prod-list { grid-template-columns: repeat(2, 1fr); }
  .system-steps { grid-template-columns: 1fr; }
  .system-pillars { grid-template-columns: 1fr; }
  .contact-page-wrap { grid-template-columns: 1fr; }
  .wechat-qr-box { max-width: 320px; margin: 0 auto; }
  .intro-body { flex-direction: column; }
  .intro-img { width: 100%; }
  .about-stats-bar { flex-wrap: wrap; }
  .stat-bar-item { min-width: 50%; }
}
@media (max-width: 600px) {
  .page-banner { margin-top: 70px; }
  .culture-grid, .factory-grid, .honor-grid, .func-grid, .equip-grid,
  .prod-list, .case-grid, .cert-preview-grid, .cert-grid { grid-template-columns: 1fr; }
  .contact-page-info { grid-template-columns: 1fr; }
  .quote-form .form-row { grid-template-columns: 1fr; }
  .news-list-item { flex-direction: column; }
  .news-list-img { width: 100%; height: 160px; }
  .form-row { grid-template-columns: 1fr; }
}