/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; color: #333; background: #fff; line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== HEADER ===== */
.site-header {
  background: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.logo img { height: 50px; width: auto; }
.main-nav { display: flex; gap: 36px; }
.main-nav a {
  font-size: 15px;
  color: #333;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: all 0.3s;
}
.main-nav a:hover, .main-nav a.active { color: #1a5c9e; border-bottom-color: #1a5c9e; }
.header-phone {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  font-size: 13px;
  color: #888;
}
.header-phone strong { font-size: 18px; color: #1a5c9e; font-weight: 700; letter-spacing: 1px; }

/* ===== HERO SLIDER ===== */
.hero {
  position: relative;
  height: 520px;
  overflow: hidden;
  background: #1a3a6e;
}
.hero-slider { position: relative; height: 100%; }
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 0.8s;
}
.hero-slide.active { opacity: 1; }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,30,70,0.75) 0%, rgba(26,90,158,0.55) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-content h1, .hero-content h2 {
  font-size: 42px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  line-height: 1.2;
}
.hero-content p {
  font-size: 18px;
  color: rgba(255,255,255,0.9);
  max-width: 560px;
  margin-bottom: 30px;
}
.hero-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 3;
}
.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: all 0.3s;
}
.dot.active { background: #fff; transform: scale(1.2); }

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-block;
  padding: 14px 36px;
  background: #1a5c9e;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: 4px;
  border: 2px solid #1a5c9e;
  transition: all 0.3s;
}
.btn-primary:hover { background: #0e4077; border-color: #0e4077; }
.btn-outline {
  display: inline-block;
  padding: 12px 32px;
  border: 2px solid #1a5c9e;
  color: #1a5c9e;
  font-size: 15px;
  font-weight: 600;
  border-radius: 4px;
  transition: all 0.3s;
}
.btn-outline:hover { background: #1a5c9e; color: #fff; }
.btn-phone {
  display: inline-block;
  padding: 14px 36px;
  border: 2px solid rgba(255,255,255,0.6);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: 4px;
  transition: all 0.3s;
}
.btn-phone:hover { border-color: #fff; background: rgba(255,255,255,0.15); }

/* ===== SECTIONS ===== */
.section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-title {
  font-size: 32px;
  font-weight: 700;
  color: #1a3a6e;
  margin-bottom: 12px;
}
.section-subtitle { font-size: 16px; color: #888; }
.section-more { text-align: center; margin-top: 48px; }

/* ===== SERVICE SECTION ===== */
.service-section { background: #f7f9fc; }
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  background: #fff;
  border-radius: 8px;
  padding: 36px 28px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: all 0.3s;
  border-top: 3px solid transparent;
}
.service-card:hover { transform: translateY(-6px); box-shadow: 0 12px 36px rgba(0,0,0,0.12); border-top-color: #1a5c9e; }
.service-icon { font-size: 48px; margin-bottom: 16px; }
.service-card h3 { font-size: 18px; font-weight: 700; color: #1a3a6e; margin-bottom: 10px; }
.service-card p { font-size: 14px; color: #666; line-height: 1.7; margin-bottom: 18px; }
.service-more { font-size: 14px; color: #1a5c9e; font-weight: 600; }

/* ===== PRODUCT SECTION ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.product-card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: all 0.3s;
  border: 1px solid #eee;
}
.product-card:hover { transform: translateY(-6px); box-shadow: 0 12px 36px rgba(0,0,0,0.12); }
.product-img { height: 220px; overflow: hidden; background: #e8eef6; }
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.product-card:hover .product-img img { transform: scale(1.08); }
.product-info { padding: 20px; }
.product-info h3 { font-size: 16px; font-weight: 700; color: #1a3a6e; margin-bottom: 8px; }
.product-info p { font-size: 13px; color: #888; line-height: 1.6; }

/* ===== ADVANTAGE SECTION ===== */
.advantage-section { background: #1a3a6e; }
.advantage-section .section-title { color: #fff; }
.advantage-section .section-subtitle { color: rgba(255,255,255,0.6); }
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.advantage-item { text-align: center; }
.advantage-num {
  font-size: 52px;
  font-weight: 900;
  color: rgba(255,255,255,0.12);
  margin-bottom: 8px;
  line-height: 1;
}
.advantage-item h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.advantage-item p { font-size: 14px; color: rgba(255,255,255,0.65); }

/* ===== APPLICATION SECTION ===== */
.application-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.application-item {
  padding: 24px 16px;
  background: #f7f9fc;
  border-radius: 8px;
  text-align: center;
  font-size: 15px;
  font-weight: 600;
  color: #1a3a6e;
  border: 1px solid #e4ecf7;
  transition: all 0.3s;
}
.application-item:hover { background: #1a5c9e; color: #fff; border-color: #1a5c9e; }

/* ===== PARTNER SECTION ===== */
.partner-section { background: #f7f9fc; }
.partner-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.partner-item {
  padding: 28px 16px;
  background: #fff;
  border-radius: 8px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: #555;
  border: 1px solid #e4ecf7;
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}

/* ===== NEWS SECTION ===== */
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.news-card { border-radius: 8px; overflow: hidden; }
.news-large { border: 1px solid #e4ecf7; transition: all 0.3s; }
.news-large:hover { box-shadow: 0 8px 28px rgba(0,0,0,0.1); transform: translateY(-4px); }
.news-img { height: 220px; overflow: hidden; background: #e8eef6; }
.news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.news-large:hover .news-img img { transform: scale(1.06); }
.news-info { padding: 22px; }
.news-date { font-size: 13px; color: #999; }
.news-info h3 { font-size: 17px; font-weight: 700; color: #1a3a6e; margin: 8px 0 10px; line-height: 1.4; }
.news-info p { font-size: 14px; color: #666; line-height: 1.7; }
.news-list { display: flex; flex-direction: column; }
.news-item {
  padding: 20px 0;
  border-bottom: 1px solid #eee;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all 0.3s;
}
.news-item:hover h4 { color: #1a5c9e; }
.news-item:last-child { border-bottom: none; }
.news-item .news-date { flex-shrink: 0; font-size: 13px; color: #bbb; padding-top: 2px; }
.news-item h4 { font-size: 15px; font-weight: 600; color: #333; line-height: 1.5; }
.news-item:hover h4 { color: #1a5c9e; }

/* ===== CTA SECTION ===== */
.cta-section { background: linear-gradient(135deg, #1a5c9e 0%, #0e4077 100%); padding: 80px 0; }
.cta-inner { text-align: center; }
.cta-inner h2 { font-size: 30px; font-weight: 700; color: #fff; margin-bottom: 14px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,0.75); margin-bottom: 36px; }
.cta-btns { display: flex; justify-content: center; gap: 20px; }

/* ===== FOOTER ===== */
.site-footer { background: #0e2444; color: rgba(255,255,255,0.7); padding-top: 60px; }
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-about img { margin-bottom: 16px; }
.footer-about p { font-size: 14px; line-height: 1.7; margin-top: 12px; }
.footer-col h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; color: rgba(255,255,255,0.6); transition: color 0.3s; }
.footer-col ul li a:hover { color: #fff; }
.contact-list li { font-size: 14px; line-height: 1.8; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-bottom a { color: rgba(255,255,255,0.65); text-decoration: none; }
.footer-bottom a:hover { color: #fff; text-decoration: underline; }

/* ===== PAGE HERO (inner pages) ===== */
.page-hero {
  height: 240px;
  background: linear-gradient(135deg, #1a3a6e 0%, #0e4077 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.page-hero h1, .page-hero .page-kicker { font-size: 36px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.page-hero p { font-size: 16px; color: rgba(255,255,255,0.65); }

/* ===== ABOUT PAGE ===== */
.about-content { padding: 80px 0; }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-text h2 { font-size: 26px; font-weight: 700; color: #1a3a6e; margin-bottom: 20px; }
.about-text p { font-size: 15px; color: #555; line-height: 1.8; margin-bottom: 16px; }
.about-img-box { border-radius: 12px; overflow: hidden; box-shadow: 0 8px 32px rgba(0,0,0,0.1); }
.about-img-box img { width: 100%; height: 360px; object-fit: cover; }
.about-features { margin-top: 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-feature { display: flex; align-items: center; gap: 10px; font-size: 15px; color: #444; }
.about-feature span { color: #1a5c9e; font-size: 18px; }
.about-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.about-info-card {
  background: #f7f9fc;
  border-radius: 8px;
  padding: 28px 24px;
  text-align: center;
  border: 1px solid #e4ecf7;
}
.about-info-card h3 { font-size: 32px; font-weight: 900; color: #1a5c9e; margin-bottom: 6px; }
.about-info-card p { font-size: 14px; color: #666; }

/* ===== PRODUCTS PAGE ===== */
.products-content { padding: 80px 0; }
.product-category { margin-bottom: 64px; }
.product-category h2 {
  font-size: 24px;
  font-weight: 700;
  color: #1a3a6e;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid #1a5c9e;
  display: inline-block;
}
.product-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.product-item {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #eee;
  transition: all 0.3s;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
.product-item:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.1); }
.product-item:focus-visible { outline: 3px solid rgba(26,92,158,0.35); outline-offset: 3px; }
.product-item-img { aspect-ratio: 1 / 1; overflow: hidden; background: #e8eef6; }
.product-item-img img { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.product-item-info { padding: 16px; }
.product-item-info h3 { font-size: 15px; font-weight: 700; color: #1a3a6e; margin-bottom: 6px; }
.product-item-info p { font-size: 13px; color: #888; }
.product-item .service-more { display: inline-block; margin-top: 10px; }

/* ===== INDUSTRY SERVICE LANDING PAGES ===== */
.keyword-page { padding: 72px 0 80px; }
.keyword-intro {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 52px;
  align-items: center;
  margin-bottom: 64px;
}
.keyword-intro h2,
.keyword-section h2 { font-size: 28px; color: #1a3a6e; line-height: 1.35; margin-bottom: 18px; }
.keyword-intro p,
.keyword-section > p { color: #53657b; line-height: 1.9; margin-bottom: 14px; }
.keyword-intro-media { border-radius: 12px; overflow: hidden; box-shadow: 0 8px 32px rgba(14, 64, 119, 0.14); }
.keyword-intro-media img { width: 100%; height: 360px; object-fit: cover; }
.keyword-section { margin-top: 64px; }
.keyword-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 28px;
}
.keyword-card {
  padding: 28px 24px;
  border: 1px solid #dce6f2;
  border-radius: 8px;
  background: #f8fbff;
}
.keyword-card h3 { font-size: 18px; color: #1a3a6e; margin-bottom: 10px; }
.keyword-card p { font-size: 14px; color: #60718a; line-height: 1.8; }
.keyword-steps {
  counter-reset: service-step;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 28px;
}
.keyword-step { position: relative; padding: 28px 22px 24px 62px; border-top: 3px solid #1a5c9e; background: #fff; box-shadow: 0 4px 18px rgba(0,0,0,0.06); }
.keyword-step::before {
  counter-increment: service-step;
  content: counter(service-step);
  position: absolute;
  top: 24px;
  left: 20px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #1a5c9e;
  color: #fff;
  font-weight: 700;
}
.keyword-step h3 { font-size: 17px; color: #1a3a6e; margin-bottom: 8px; }
.keyword-step p { font-size: 14px; color: #60718a; line-height: 1.75; }
.selection-table-wrap { overflow-x: auto; margin-top: 28px; border: 1px solid #dce6f2; border-radius: 8px; }
.selection-table { width: 100%; border-collapse: collapse; min-width: 700px; }
.selection-table th,
.selection-table td { padding: 16px 18px; text-align: left; border-bottom: 1px solid #e5edf6; vertical-align: top; }
.selection-table th { background: #1a3a6e; color: #fff; font-size: 15px; }
.selection-table td { color: #53657b; font-size: 14px; line-height: 1.7; }
.selection-table tr:last-child td { border-bottom: none; }
.checklist { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 24px; margin-top: 24px; }
.checklist li { padding: 15px 18px 15px 46px; border: 1px solid #dce6f2; border-radius: 6px; color: #53657b; position: relative; line-height: 1.7; }
.checklist li::before { content: "✓"; position: absolute; left: 18px; color: #1a5c9e; font-weight: 800; }
.faq-list { margin-top: 24px; }
.faq-item { padding: 24px 0; border-bottom: 1px solid #e2e8f0; }
.faq-item:first-child { border-top: 1px solid #e2e8f0; }
.faq-item h3 { font-size: 17px; color: #1a3a6e; margin-bottom: 8px; }
.faq-item p { color: #60718a; line-height: 1.8; }
.service-links { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.service-links a { display: inline-block; padding: 11px 18px; border: 1px solid #b9cce3; border-radius: 5px; color: #1a5c9e; font-weight: 600; }
.service-links a:hover { color: #fff; background: #1a5c9e; border-color: #1a5c9e; }

/* ===== CASES PAGE ===== */
.cases-content { padding: 80px 0; }
.case-disclaimer {
  margin-bottom: 28px;
  padding: 16px 20px;
  border-left: 4px solid #1a5c9e;
  background: #f3f7fc;
  color: #5b6c82;
  font-size: 14px;
  line-height: 1.7;
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #eee;
  transition: all 0.3s;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
.case-card:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(0,0,0,0.12); }
.case-img { height: 200px; overflow: hidden; background: #e8eef6; }
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.case-card:hover .case-img img { transform: scale(1.06); }
.case-info { padding: 20px; }
.case-info h3 { font-size: 16px; font-weight: 700; color: #1a3a6e; margin-bottom: 8px; }
.case-info p { font-size: 13px; color: #888; line-height: 1.6; }
.case-tag { display: inline-block; padding: 3px 10px; background: #e8f0fb; color: #1a5c9e; font-size: 12px; border-radius: 20px; margin-bottom: 8px; }

/* ===== NEWS PAGE ===== */
.news-content { padding: 80px 0; }
.topic-hub { margin-bottom: 44px; padding: 30px; border: 1px solid #dce6f2; border-radius: 10px; background: #f7faff; }
.topic-eyebrow { margin: 0 0 6px; color: #1a5c9e; font-size: 13px; font-weight: 700; letter-spacing: 0.08em; }
.topic-hub > h2 { margin: 0; color: #1a3a6e; font-size: 27px; }
.topic-intro { margin: 10px 0 24px; color: #60718a; line-height: 1.8; }
.topic-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.topic-card { padding: 22px; border: 1px solid #e0e8f2; border-radius: 8px; background: #fff; }
.topic-card h3 { margin-bottom: 8px; font-size: 18px; }
.topic-card h3 a { color: #1a3a6e; }
.topic-card p { color: #60718a; font-size: 14px; line-height: 1.7; }
.topic-card ul { display: flex; flex-wrap: wrap; gap: 8px 12px; margin-top: 14px; }
.topic-card li { font-size: 14px; }
.topic-card li a { color: #1a5c9e; text-decoration: underline; text-decoration-color: #c5d6e8; text-underline-offset: 3px; }
.topic-card a:hover { color: #0e4077; text-decoration-color: currentColor; }
.news-full-list { display: flex; flex-direction: column; gap: 24px; }
.news-full-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 28px;
  padding: 24px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid #eee;
  transition: all 0.3s;
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}
.news-full-item:hover { box-shadow: 0 8px 28px rgba(0,0,0,0.1); transform: translateY(-2px); }
.news-full-item-img { height: 160px; border-radius: 6px; overflow: hidden; background: #e8eef6; }
.news-full-item-img img { width: 100%; height: 100%; object-fit: cover; }
.news-full-item-info h3 { font-size: 17px; font-weight: 700; color: #1a3a6e; margin-bottom: 10px; }
.news-full-item-info p { font-size: 14px; color: #666; line-height: 1.7; margin-bottom: 12px; }
.news-full-item-info .news-date { font-size: 13px; color: #bbb; }

/* ===== ARTICLE PAGES ===== */
.article-wrapper { max-width: 900px; margin: 0 auto; }
.article-title { margin: 18px 0 12px; color: #1a3a6e; font-size: clamp(28px, 4vw, 40px); line-height: 1.35; }
.article-meta { margin-bottom: 24px; color: #7c8999; font-size: 14px; }
.article-cover { margin: 0 0 28px; overflow: hidden; border-radius: 10px; background: #e8eef6; box-shadow: 0 6px 24px rgba(20,54,95,0.08); }
.article-cover img { display: block; width: 100%; height: auto; aspect-ratio: 1400 / 788; object-fit: cover; }
.article-cover figcaption { padding: 10px 14px; background: #f4f7fb; color: #718096; font-size: 13px; line-height: 1.6; }
.article-summary { margin: 0 0 30px; padding: 18px 22px; border-left: 4px solid #1a5c9e; background: #f4f8fd; color: #42566f; line-height: 1.9; }
.article-body { color: #3f5066; font-size: 16px; line-height: 1.9; }
.article-body h2 { margin: 42px 0 16px; padding-bottom: 9px; border-bottom: 2px solid #e3ebf4; color: #1a3a6e; font-size: 24px; line-height: 1.45; }
.article-body h3 { margin: 26px 0 10px; color: #284b76; font-size: 18px; line-height: 1.55; }
.article-body p { margin: 0 0 17px; }
.article-body ul, .article-body ol { margin: 0 0 20px; padding-left: 25px; }
.article-body li { margin-bottom: 9px; }
.article-body strong { color: #243b5a; }
.article-note { margin: 24px 0; padding: 17px 20px; border-radius: 6px; background: #fff8e8; color: #68562d; line-height: 1.8; }
.article-sources { margin: 42px 0 10px; padding: 22px 24px; border: 1px solid #dce6f2; border-radius: 8px; background: #fbfdff; }
.article-sources h2 { margin-top: 0; }
.article-sources a { color: #1a5c9e; text-decoration: underline; text-underline-offset: 2px; }
.back-link { display: inline-block; color: #1a5c9e; font-weight: 600; }
.back-link:hover { text-decoration: underline; }

/* ===== CONTACT PAGE ===== */
.contact-content { padding: 80px 0; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.contact-info-section h2 { font-size: 24px; font-weight: 700; color: #1a3a6e; margin-bottom: 24px; }
.contact-item { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 24px; }
.contact-item-icon {
  width: 44px;
  height: 44px;
  background: #e8f0fb;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.contact-item h4 { font-size: 15px; font-weight: 700; color: #1a3a6e; margin-bottom: 4px; }
.contact-item p { font-size: 14px; color: #555; line-height: 1.6; }
.contact-map { margin-top: 32px; height: 220px; background: #e8eef6; border-radius: 8px; overflow: hidden; }
.map-link {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 24px;
  color: #1a3a6e;
  text-align: center;
  background: linear-gradient(135deg, #edf4fc, #dbe9f8);
}
.map-link span { font-size: 36px; }
.map-link strong { font-size: 17px; }
.map-link small { color: #60718a; line-height: 1.6; }
.contact-form-section h2 { font-size: 24px; font-weight: 700; color: #1a3a6e; margin-bottom: 24px; }
.contact-fallback { padding: 28px; border: 1px solid #dce6f2; border-radius: 8px; background: #f8fbff; }
.contact-fallback > p { color: #53657b; line-height: 1.8; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0 20px; }
.contact-actions a { padding: 13px 22px; font-size: 15px; font-weight: 600; border-radius: 6px; transition: all 0.3s; }
.btn-submit { background: #1a5c9e; color: #fff; }
.btn-submit:hover { background: #0e4077; }
.btn-reset { background: #f0f0f0; color: #555; }
.btn-reset:hover { background: #e0e0e0; }
.contact-fallback .privacy-note { font-size: 13px; color: #7a8798; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .application-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 36px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-info-grid { grid-template-columns: repeat(2, 1fr); }
  .product-list { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .keyword-card-grid, .keyword-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; height: auto; padding: 16px 20px; }
  .main-nav { gap: 20px; flex-wrap: wrap; }
  .header-phone { display: none; }
  .hero { height: 400px; }
  .hero-content h1, .hero-content h2 { font-size: 28px; }
  .section { padding: 56px 0; }
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
  .product-list { grid-template-columns: 1fr 1fr; }
  .news-full-item { grid-template-columns: 1fr; }
  .topic-grid { grid-template-columns: 1fr; }
  .keyword-page { padding: 52px 0 64px; }
  .keyword-intro { grid-template-columns: 1fr; gap: 28px; margin-bottom: 48px; }
  .keyword-intro-media img { height: 300px; }
  .keyword-card-grid, .keyword-steps { grid-template-columns: 1fr; }
  .checklist { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .main-nav { gap: 16px; }
  .main-nav a { font-size: 13px; }
  .service-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .application-grid { grid-template-columns: 1fr 1fr; }
  .about-info-grid { grid-template-columns: 1fr; }
  .product-list { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .cta-btns { flex-direction: column; align-items: center; }
  .topic-hub { padding: 22px 18px; }
  .topic-hub > h2 { font-size: 23px; }
}


/* Search-friendly navigation is visible and usable without JavaScript. */
.breadcrumb { background: #f4f7fb; color: #53657b; font-size: 14px; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 15px 0; margin: 0; }
.breadcrumb li { display: inline; overflow-wrap: anywhere; }
.breadcrumb li + li::before { content: "/"; color: #8795a7; margin-right: 8px; }
.breadcrumb a { color: #1a5c9e; text-decoration: none; }
.breadcrumb a:hover, .related-reading a:hover, .sitemap-list a:hover { text-decoration: underline; }
.related-reading { margin: 32px 0; padding: 24px; background: #f4f7fb; border-left: 3px solid #1a5c9e; border-radius: 4px; }
.related-reading h2 { font-size: 20px; color: #1a3a6e; margin: 0 0 12px; }
.related-reading ul { list-style: none; padding: 0; margin: 0; }
.related-reading li { margin: 8px 0; line-height: 1.7; }
.related-reading a { color: #1a5c9e; text-decoration: none; }
.sitemap-content { padding: 48px 20px 72px; }
.sitemap-content h2 { margin: 28px 0 14px; color: #1a3a6e; font-size: 24px; }
.sitemap-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; list-style: none; }
.sitemap-list li { border: 1px solid #dce6f2; border-radius: 6px; padding: 20px; }
.sitemap-list a { color: #1a5c9e; font-weight: 600; }
.sitemap-list p { font-size: 14px; color: #53657b; margin-top: 8px; }
@media (max-width: 600px) {
  .sitemap-list { grid-template-columns: 1fr; }
  .breadcrumb { font-size: 13px; }
  .hero-content h1 { font-size: 26px; text-wrap: balance; }
}