:root {
  --brand: #0a4d92;
  --brand-dark: #073a70;
  --cyan: #23bfc3;
  --green: #4caf50;
  --text: #333333;
  --muted: #828282;
  --line: #ebebeb;
  --soft: #f6f8fa;
  --white: #ffffff;
  --max: 1200px;
  --radius: 6px;
  --shadow: 0 12px 30px rgba(12, 44, 75, 0.10);
  --font: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--text); font-family: var(--font); background: var(--white); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.container { width: min(var(--max), calc(100% - 30px)); margin: 0 auto; }

.site-header { position: relative; z-index: 20; background: #fff; }
.contact-strip { height: 60px; overflow: hidden; }
.contact-strip__inner { display: flex; justify-content: flex-end; align-items: center; height: 60px; color: #fff; letter-spacing: 4px; font-size: 18px; position: relative; }
.contact-strip__inner::before { content: ""; position: absolute; inset: 0 -400% 0 38%; background: var(--brand); border-radius: 0 0 0 60px; z-index: -1; }
.nav-row { height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.brand { display: flex; align-items: center; min-width: 180px; }
.brand-logo { width: 85px; height: 20px; object-fit: contain; object-position: left center; }
.main-nav { display: flex; align-items: center; gap: 46px; }
.main-nav a { height: 80px; display: flex; align-items: center; font-size: 18px; color: #333; position: relative; transition: color .25s; }
.main-nav a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 3px; background: var(--brand); transition: width .25s; }
.main-nav a:hover, .main-nav a.active { color: var(--brand); }
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.menu-button { display: none; width: 34px; height: 34px; border: 0; background: transparent; padding: 4px; }
.menu-button span { display: block; height: 3px; margin: 5px 0; background: var(--brand); border-radius: 5px; }

.hero { min-height: 500px; position: relative; overflow: hidden; display: flex; align-items: center; }
.hero__image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 35%; }
.hero__shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0, 37, 73, .74), rgba(10, 77, 146, .34) 48%, rgba(255, 255, 255, .08)); }
.hero__content { position: relative; color: #fff; padding: 80px 0; }
.hero__content p { margin: 0 0 14px; font-size: 14px; letter-spacing: 2px; opacity: .82; }
.hero__content h1 { margin: 0; max-width: 760px; font-size: 38px; line-height: 1.28; font-weight: 800; }
.hero__content span { display: block; max-width: 670px; margin-top: 18px; font-size: 16px; line-height: 1.9; }
.hero__actions { display: flex; gap: 14px; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 30px; border-radius: 4px; background: var(--brand); color: #fff; font-size: 14px; border: 1px solid var(--brand); transition: transform .2s, background .2s; }
.btn:hover { background: var(--brand-dark); transform: translateY(-1px); }
.btn--ghost { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.72); }

.quick-panels { background: #f5f5f5; padding: 50px 0; }
.quick-panels__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.quick-panel { min-height: 170px; padding: 36px 28px; color: #fff; border-radius: 5px; text-align: center; }
.quick-panel--cyan { background: var(--cyan); }
.quick-panel--green { background: var(--green); }
.quick-panel span { width: 70px; height: 70px; margin: 0 auto 14px; display: grid; place-items: center; border-radius: 50%; background: #fff; color: var(--brand); font-weight: 800; }
.quick-panel h2 { margin: 0; font-size: 24px; }
.quick-panel p { margin: 10px 0 0; font-size: 14px; }

.white-section, .about-band, .blue-section, .stats-section { padding: 70px 0; }
.about-band { background: #f9f9f9; }
.split { display: grid; grid-template-columns: 40% 1fr; gap: 60px; align-items: center; }
.split > img, .prose-layout img, .cert-layout img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; object-fit: cover; }
.section-title { margin-bottom: 34px; }
.section-title p, .section-kicker { margin: 0; color: var(--brand); font-size: 36px; line-height: 1; text-transform: uppercase; }
.section-title p::before, .section-kicker::before { content: ""; display: block; width: 110px; height: 5px; background: currentColor; margin-bottom: 8px; }
.section-title h2, .section-copy h2 { margin: 7px 0 0; color: var(--brand); font-size: 24px; font-weight: 500; }
.section-copy > p:not(.section-kicker), .prose-layout p { font-size: 14px; line-height: 2; color: #333; }
.section-title--center { text-align: center; }
.section-title--center p::before { margin-left: auto; margin-right: auto; }
.section-title--light p, .section-title--light h2 { color: #fff; }
.section-title--light h2 { opacity: .62; }

.stats-section { background: #fff; padding: 50px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-card { padding: 30px 20px; border: 1px solid var(--line); border-radius: var(--radius); text-align: center; background: #fff; }
.stat-card strong { display: block; color: var(--brand); font-size: 34px; }
.stat-card span { display: block; margin-top: 8px; color: var(--muted); font-size: 14px; }

.blue-section { background: var(--brand); }
.card-grid { display: grid; gap: 30px; }
.card-grid--three { grid-template-columns: repeat(3, 1fr); }
.service-card, .business-grid article { background: #fff; border-radius: 6px; overflow: hidden; }
.service-card h3, .business-grid h3 { margin: 0; background: #fff; color: var(--brand); font-size: 20px; padding: 20px 24px 0; }
.service-card p, .business-grid p { margin: 0; padding: 12px 24px 24px; color: rgba(51,51,51,.68); line-height: 1.7; font-size: 15px; }

.news-layout { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 2px solid var(--line); }
.news-item { padding: 24px 26px; border-bottom: 2px solid var(--line); background: #fff; }
.news-item:nth-child(odd) { background: #f5f5f5; }
.news-item h3 { margin: 0; color: #3d3d3d; font-size: 20px; }
.news-item time { display: block; color: var(--muted); margin: 10px 0; }
.news-item p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }

.page-hero { background: linear-gradient(rgba(10,77,146,.78), rgba(10,77,146,.78)), url("/assets/brochure/page-01.png") center 38% / cover; color: #fff; padding: 90px 0; }
.page-hero p { margin: 0; letter-spacing: 3px; opacity: .8; }
.page-hero h1 { margin: 12px 0 0; font-size: 36px; }
.prose-layout, .cert-layout, .contact-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.culture-grid, .advantage-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.culture-grid article, .advantage-grid article { background: #fff; border-radius: 6px; padding: 28px; }
.culture-grid h3, .advantage-grid h3 { margin: 0; color: var(--brand); font-size: 20px; }
.culture-grid p, .advantage-grid p { color: #666; line-height: 1.8; }
.business-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.business-grid article { background: #f6f6f6; }
.business-grid h3 { background: var(--brand); color: #fff; padding: 18px 24px; }
.chips-block h3 { color: #fff; margin: 26px 0 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 14px; }
.chips span, .cert-list li { background: #fff; color: var(--brand); border-radius: 999px; padding: 11px 20px; font-size: 14px; }
.cert-list { list-style: none; padding: 0; display: grid; gap: 14px; }
.cert-layout img { background: #fff; }
.advantage-grid { grid-template-columns: repeat(3, 1fr); }
.advantage-grid article { border: 1px solid var(--line); }
.advantage-grid span { display: block; width: 38px; height: 4px; background: var(--brand); margin-bottom: 18px; }
.project-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.project-card { background: #fff; border-radius: 6px; overflow: hidden; }
.project-card img { width: 100%; height: 280px; object-fit: cover; object-position: center 20%; }
.project-card div { padding: 22px; }
.project-card span { color: var(--muted); }
.project-card h3 { color: var(--brand); margin: 8px 0; }
.project-card p { color: #666; line-height: 1.7; }
.contact-card, .process-card { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 34px; box-shadow: var(--shadow); }
.contact-card p { line-height: 1.9; }
.contact-card ul { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 18px; }
.contact-card li { display: grid; gap: 6px; border-top: 1px solid var(--line); padding-top: 16px; }
.contact-card strong { color: var(--brand); }
.process-card { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.process-card span { background: var(--brand); color: #fff; padding: 16px; border-radius: 5px; }

.footer { background: #333; color: #fff; padding: 58px 0 24px; text-align: center; }
.footer h2 { margin: 0; font-size: 24px; }
.footer p { max-width: 760px; margin: 10px auto 0; color: rgba(255,255,255,.5); line-height: 1.8; font-size: 14px; }
.footer-contact { margin: 38px auto 24px; padding: 26px 0; border-top: 1px solid rgba(255,255,255,.06); border-bottom: 1px solid rgba(255,255,255,.06); display: flex; flex-wrap: wrap; justify-content: center; gap: 34px; color: rgba(255,255,255,.72); }
.footer small { color: rgba(255,255,255,.25); }

@media (max-width: 992px) {
  .contact-strip { display: none; }
  .site-header { position: sticky; top: 0; box-shadow: 0 2px 18px rgba(0,0,0,.08); }
  .nav-row { height: 64px; }
  .brand { min-width: auto; }
  .brand-logo { width: 60px; height: 15px; }
  .menu-button { display: block; }
  .main-nav { display: none; position: fixed; left: 0; right: 0; top: 64px; background: #fff; border-top: 1px solid var(--line); flex-direction: column; gap: 0; align-items: stretch; }
  .main-nav.open { display: flex; }
  .main-nav a { height: 54px; padding: 0 18px; border-bottom: 1px solid var(--line); }
  .hero { min-height: 430px; }
  .hero__content h1 { font-size: 28px; }
  .quick-panels__grid, .split, .stats-grid, .card-grid--three, .news-layout, .prose-layout, .cert-layout, .contact-layout, .business-grid, .advantage-grid, .culture-grid, .project-grid { grid-template-columns: 1fr; }
  .white-section, .about-band, .blue-section, .stats-section { padding: 44px 0; }
  .section-title p, .section-kicker { font-size: 24px; }
  .footer-contact { display: grid; gap: 12px; }
}