/* ============================================================
   UTEC International Logistics — Front-end design system v3
   Palette: navy #0B2C4D / amber #F59E0B / mist #F3F6FA
   ============================================================ */
:root {
  --navy: #0B2C4D;
  --navy-2: #12395f;
  --navy-3: #081d33;
  --amber: #F59E0B;
  --amber-d: #d98a09;
  --bg: #F5F7FA;
  --ink: #16202e;
  --muted: #64748b;
  --line: #e2e8f0;
  --white: #fff;
  --shadow-sm: 0 1px 3px rgba(15,23,42,.07), 0 4px 12px rgba(15,23,42,.05);
  --shadow-md: 0 6px 24px rgba(15,23,42,.10);
  --radius: 12px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }
h1,h2,h3,h4 { color: var(--navy); line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.35rem, 2.6vw, 1.8rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 700; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 820px; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 10px; top: 10px; background: var(--navy); color: #fff; padding: 8px 12px; z-index: 99; border-radius: 8px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,.94); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 64px; }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 17px; color: var(--navy); letter-spacing: -.01em; }
.logo:hover { text-decoration: none; }
.logo-text { white-space: nowrap; }
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.main-nav > a { padding: 9px 13px; border-radius: 8px; font-weight: 600; font-size: 14.5px; color: var(--ink); }
.main-nav > a:hover { background: var(--bg); text-decoration: none; }
.dd { position: relative; }
.dd-btn {
  background: none; border: 0; cursor: pointer; font: inherit;
  padding: 9px 13px; border-radius: 8px; font-weight: 600; font-size: 14.5px; color: var(--ink);
  display: flex; align-items: center; gap: 4px;
}
.dd-btn:hover { background: var(--bg); }
.dd-menu {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 210px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-md); padding: 7px; display: none;
  z-index: 50;
}
.dd:hover .dd-menu, .dd:focus-within .dd-menu { display: block; }
.dd-menu a { display: block; padding: 9px 12px; border-radius: 8px; font-size: 14px; color: var(--ink); font-weight: 500; }
.dd-menu a:hover { background: var(--bg); color: var(--navy); text-decoration: none; }
.lang-toggle { padding: 9px 12px; font-size: 14px; font-weight: 600; border-radius: 8px; }
.lang-toggle:hover { background: var(--bg); text-decoration: none; }
.nav-cta { margin-left: 4px; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; width: 42px; height: 42px; padding: 10px; margin-left: auto; border-radius: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy); margin: 5px auto; border-radius: 2px; transition: .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--navy); color: #fff; border: 0; border-radius: 9px;
  padding: 11px 22px; font-size: 15px; font-weight: 700; cursor: pointer;
  transition: all .18s; text-decoration: none;
}
.btn:hover { background: var(--navy-2); text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn-accent { background: linear-gradient(135deg, var(--amber), var(--amber-d)); color: #1a1a1a; }
.btn-accent:hover { filter: brightness(1.05); background: linear-gradient(135deg, var(--amber), var(--amber-d)); }
.btn-lg { padding: 14px 30px; font-size: 16px; border-radius: 10px; }
.btn-ghost { background: transparent; color: var(--navy); border: 1.5px solid var(--navy); }
.btn-ghost:hover { background: var(--navy); color: #fff; }
.btn-outline-sm { background: #fff; color: var(--navy); border: 1px solid var(--line); padding: 7px 14px; font-size: 13.5px; border-radius: 8px; font-weight: 600; }
.btn-outline-sm:hover { border-color: var(--navy); background: var(--bg); }

/* ---------- breadcrumb ---------- */
.breadcrumb { padding: 14px 20px 4px; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; font-size: 13px; color: var(--muted); }
.breadcrumb li + li::before { content: "›"; margin-right: 6px; color: #cbd5e1; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--navy); text-decoration: none; }
.breadcrumb [aria-current] { color: var(--ink); font-weight: 600; }

/* ---------- hero ---------- */
.hero {
  background: radial-gradient(1100px 480px at 15% -20%, var(--navy-2) 0%, var(--navy) 55%, var(--navy-3) 100%);
  color: #fff; padding: 64px 0 72px;
}
.hero h1 { color: #fff; }
.hero .lead { color: #cbd5e1; font-size: 1.1rem; max-width: 640px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 26px; font-size: 14px; color: #e2e8f0; }
.hero-trust .stat { font-weight: 800; color: var(--amber); font-size: 15px; }
.hero-img { margin-top: 30px; border-radius: 16px; box-shadow: var(--shadow-md); }
.hero-img img { border-radius: 16px; width: 100%; object-fit: cover; }

/* ---------- sections ---------- */
.section { padding: 56px 0; }
.section-gray { background: var(--bg); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { text-align: center; max-width: 640px; margin: 0 auto 34px; }
.sec-head h2 { margin-bottom: 6px; }
.kicker { display: inline-block; font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: 1.5px; color: var(--amber); margin-bottom: 8px; }
.kicker::before { content: "— "; }
.lead { color: var(--muted); font-size: 1.05rem; }

/* ---------- grids & cards ---------- */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow-sm); transition: all .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card h3 { margin-top: 0; }
.card-img-wrap { margin: -24px -24px 16px; overflow: hidden; border-radius: var(--radius) var(--radius) 0 0; }
.card-img-wrap img { width: 100%; height: 190px; object-fit: cover; display: block; }
.list-card { display: block; }
.list-card:hover { text-decoration: none; }
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  background: #fff; border: 1px solid var(--line); border-radius: 99px;
  padding: 8px 16px; font-size: 13.5px; font-weight: 600; color: var(--navy);
  transition: all .15s;
}
.chip:hover { background: var(--navy); color: #fff; border-color: var(--navy); text-decoration: none; }
.chip-lg { padding: 11px 20px; font-size: 14.5px; }

/* ---------- stat band ---------- */
.stat-band { padding: 40px 0; background: var(--navy); color: #fff; }
.stat-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 24px; text-align: center; }
.stat .num { font-size: 2.2rem; font-weight: 800; color: var(--amber); letter-spacing: -.03em; }
.stat .lbl { color: #cbd5e1; font-size: 13.5px; }
.stat-band .stat .lbl { color: #cbd5e1; }

/* ---------- content / prose ---------- */
.prose { max-width: 820px; }
.prose h2 { margin-top: 1.6em; }
.prose h3 { margin-top: 1.4em; }
.prose img, .content-img { border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.prose ul, .prose ol { padding-left: 1.3em; }
.table-wrap { overflow-x: auto; margin: 18px 0; border-radius: var(--radius); border: 1px solid var(--line); }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table-wrap th { background: var(--bg); text-align: left; padding: 11px 14px; font-weight: 700; color: var(--navy); white-space: nowrap; }
.table-wrap td { padding: 10px 14px; border-top: 1px solid var(--line); }
.table-wrap tr:hover td { background: #f8fafc; }

/* ---------- related ---------- */
.related-section { background: var(--bg); border-top: 1px solid var(--line); }
.related-title { text-align: center; margin-bottom: 22px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy-2), var(--navy));
  color: #fff; padding: 56px 0; text-align: center;
}
.cta-inner h2 { color: #fff; }
.cta-inner p { color: #cbd5e1; margin-bottom: 22px; }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- footer ---------- */
.site-footer { background: var(--navy-3); color: #cbd5e1; padding: 52px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; padding-bottom: 34px; }
.fcol h3 { color: #fff; font-size: 14px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 14px; }
.flinks { list-style: none; margin: 0; padding: 0; font-size: 14px; }
.flinks li { margin-bottom: 8px; }
.flinks a { color: #cbd5e1; }
.flinks a:hover { color: var(--amber); text-decoration: none; }
.flinks.rep { margin-bottom: 16px; }
.fabout { font-size: 13.5px; color: #94a3b8; margin: 12px 0 0; }
.social-row { display: flex; gap: 9px; margin-top: 16px; }
.social-ic {
  width: 34px; height: 34px; border-radius: 50%; display: inline-flex; align-items: center;
  justify-content: center; color: #fff; transition: all .18s;
}
.social-ic:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,.3); }
.social-empty { opacity: .38; cursor: default; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 20px; font-size: 13px; color: #94a3b8; }

/* ---------- FAQ ---------- */
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; background: #fff; }
.faq-item details summary { padding: 15px 18px; cursor: pointer; font-weight: 600; color: var(--navy); font-size: 15px; list-style: none; }
.faq-item details summary::-webkit-details-marker { display: none; }
.faq-item details summary::after { content: "+"; float: right; font-size: 19px; color: var(--amber); font-weight: 700; }
.faq-item details[open] summary::after { content: "−"; }
.faq-item details p { margin: 0; padding: 0 18px 16px; color: var(--muted); font-size: 14.5px; }

/* ---------- forms ---------- */
.quote-form, .search-box {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-sm);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid label { font-size: 13px; font-weight: 600; color: var(--muted); display: block; margin-bottom: 5px; }
.form-grid input, .form-grid select, .form-grid textarea {
  width: 100%; padding: 10px 12px; border: 1px solid #cbd5e1; border-radius: 9px; font: inherit; font-size: 14px;
}
.form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(11,44,77,.08); }
.form-note { font-size: 12.5px; color: var(--muted); margin-top: 12px; }
.form-status { margin-top: 14px; padding: 11px 14px; border-radius: 9px; background: #dcfce7; color: #166534; font-weight: 600; font-size: 14px; }
.hp-field { position: absolute; left: -9999px; }

/* ---------- product layout ---------- */
.product-layout { display: grid; grid-template-columns: 1.6fr 1fr; gap: 34px; align-items: start; }
.product-side { position: sticky; top: 84px; }
.product-side .card { box-shadow: var(--shadow-md); }

/* ---------- misc ---------- */
.feature-list { list-style: none; padding: 0; }
.feature-list li { padding: 7px 0 7px 28px; position: relative; }
.feature-list li::before { content: "✓"; position: absolute; left: 0; color: var(--amber); font-weight: 800; }
.steps { counter-reset: step; list-style: none; padding: 0; }
.steps li { counter-increment: step; position: relative; padding: 0 0 18px 44px; }
.steps li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  width: 32px; height: 32px; border-radius: 50%; background: var(--navy); color: var(--amber);
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px;
}
.validity { font-size: 13px; color: var(--muted); }
.iata { font-weight: 700; color: var(--navy); }
.mt-2 { margin-top: 14px; }
.center { text-align: center; }
.more { margin-top: 18px; }

/* ---------- lists ---------- */
.sitemap-list { list-style: none; padding: 0; column-count: 2; column-gap: 34px; }
.sitemap-list li { break-inside: avoid; margin-bottom: 9px; }
.gloss-item { border-bottom: 1px solid var(--line); padding: 14px 0; }
.gloss-item:last-child { border-bottom: 0; }
.gloss-item dt { font-weight: 700; color: var(--navy); }
.gloss-item dd { margin: 4px 0 0; color: var(--muted); font-size: 14.5px; }
.article-date { font-size: 13px; color: var(--muted); display: block; margin-bottom: 8px; }
.search-results .card { margin-bottom: 16px; }
.img-placeholder {
  background: linear-gradient(135deg, #e2e8f0, #f1f5f9); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center; color: #94a3b8;
  min-height: 180px; font-size: 14px;
}

/* ---------- cookie + wa float ---------- */
.cookie-band {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  background: var(--navy-3); color: #e2e8f0; padding: 14px 20px;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  font-size: 14px; box-shadow: 0 -4px 20px rgba(0,0,0,.25);
}
.cookie-band a { color: var(--amber); }
.wa-float {
  position: fixed; right: 22px; bottom: 26px; z-index: 55;
  width: 54px; height: 54px; border-radius: 50%;
  background: linear-gradient(135deg, #25D366, #128C7E);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 18px rgba(18,140,126,.4); transition: all .2s;
}
.wa-float:hover { transform: scale(1.08); box-shadow: 0 8px 24px rgba(18,140,126,.5); }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .product-layout { grid-template-columns: 1fr; }
  .product-side { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed; inset: 64px 0 auto 0; background: #fff; flex-direction: column;
    align-items: stretch; padding: 14px 20px 22px; gap: 2px;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow-md);
    display: none; max-height: calc(100vh - 64px); overflow-y: auto;
  }
  .main-nav.open { display: flex; }
  .main-nav > a, .dd-btn, .lang-toggle { padding: 12px 10px; font-size: 15.5px; }
  .dd-menu { position: static; box-shadow: none; border: 0; padding: 0 0 0 14px; display: none; }
  .dd.open .dd-menu { display: block; }
  .nav-cta { margin: 8px 0 0; }
  .hero { padding: 44px 0 52px; }
  .section { padding: 42px 0; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .sitemap-list { column-count: 1; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .stat-strip { grid-template-columns: 1fr 1fr; }
  .btn-lg { width: 100%; }
  .cta-row { flex-direction: column; }
}