/* ============================================================
   Sumtex / poleocean.com
   Palette drawn from the company logo: warm charcoal black
   (#1f1a17) and signal red (#da251c) on warm paper.
   Designed for trust and readability, not fashion.
   ============================================================ */

:root {
  --coal: #241e1a;
  --coal-deep: #15110e;
  --red-deep: #b51e16;
  --red: #da251c;
  --red-soft: #f2685f;
  --paper: #f8f7f3;
  --white: #ffffff;
  --ink: #2a2622;
  --ink-soft: #6b6259;
  --line: #e6e1da;
  --line-dark: rgba(255, 255, 255, 0.15);

  --font-serif: "Spectral", "Noto Serif SC", "Noto Serif TC", "Songti SC", serif;
  --font-sans: "Source Sans 3", "Noto Sans SC", "Noto Sans TC", "PingFang SC", sans-serif;

  --container: 1120px;
}

/* Chinese: prefer Noto SC/TC by lang so glyph shapes are correct */
:lang(zh-Hans) { --font-serif: "Noto Serif SC", "Spectral", "Songti SC", serif; --font-sans: "Noto Sans SC", "Source Sans 3", "PingFang SC", sans-serif; }
:lang(zh-Hant) { --font-serif: "Noto Serif TC", "Spectral", "Songti TC", serif; --font-sans: "Noto Sans TC", "Source Sans 3", "PingFang TC", sans-serif; }
:lang(ar) { --font-serif: "Noto Naskh Arabic", "Geeza Pro", serif; --font-sans: "Noto Sans Arabic", "Geeza Pro", sans-serif; }
:lang(ja) { --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", serif; --font-sans: "Noto Sans JP", "Hiragino Sans", sans-serif; }
/* Arabic joins letters — letter-spacing must stay 0 */
:lang(ar) .overline, :lang(ar) .brand-tag { letter-spacing: 0; }
/* CJK headings: never strand a lone character — break only at the · separators */
:lang(zh-Hans) h1, :lang(zh-Hans) h2,
:lang(zh-Hant) h1, :lang(zh-Hant) h2,
:lang(ja) h1, :lang(ja) h2 { word-break: keep-all; line-break: strict; }

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 96px; }

body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  font-family: var(--font-serif);
  color: var(--coal);
  line-height: 1.25;
  font-weight: 600;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.15rem; }

a { color: var(--red-deep); }

.overline {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red-soft);
  margin-bottom: 14px;
}
.overline-dark { color: var(--red); }

.lead { font-size: 1.15rem; color: var(--ink); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 13px 28px;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: #b51e16; }
.btn-ghost { border-color: var(--line-dark); color: var(--white); }
.btn-ghost:hover { border-color: var(--white); }
.btn-block { display: block; text-align: center; margin-top: 22px; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.topbar {
  background: var(--coal-deep);
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.82rem;
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  min-height: 36px;
  flex-wrap: wrap;
  padding-top: 4px;
  padding-bottom: 4px;
}

.lang-switch { display: flex; align-items: center; gap: 10px; }
.lang-sep { color: rgba(255, 255, 255, 0.3); }
.lang-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.78);
  font: inherit;
  cursor: pointer;
  padding: 2px 0;
  border-bottom: 2px solid transparent;
}
.lang-btn:hover { color: var(--white); }
.lang-btn.active { color: var(--red-soft); border-bottom-color: var(--red-soft); font-weight: 600; }

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 72px;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--coal); }
.brand-mark { width: 38px; height: 38px; }
.brand-text { display: flex; flex-direction: column; align-items: flex-start; gap: 5px; line-height: 1.2; }
.brand-word { height: 16px; width: auto; color: var(--coal); }
.brand-tag {
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--coal);
}

.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.97rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover { color: var(--coal); border-bottom-color: var(--red); }
.main-nav .nav-cta {
  border: 1.5px solid var(--coal);
  padding: 9px 20px;
  color: var(--coal);
}
.main-nav .nav-cta:hover { background: var(--coal); color: var(--white); border-bottom-color: transparent; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--coal); margin: 5px 0; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  background: linear-gradient(170deg, var(--coal) 0%, var(--coal-deep) 100%);
  color: var(--white);
  overflow: hidden;
}

.hero-chart {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
}
.chart-lines path { fill: none; stroke: rgba(255, 255, 255, 0.07); stroke-width: 1.5; }
.chart-route path {
  stroke: var(--red-soft);
  stroke-width: 2;
  stroke-dasharray: 4 9;
  opacity: 0.55;
}
.chart-route circle { fill: var(--red-soft); opacity: 0.8; }
.chart-compass circle { stroke: rgba(255, 255, 255, 0.18); stroke-width: 1.5; fill: none; }
.chart-compass path { fill: rgba(255, 255, 255, 0.14); }

.hero-inner {
  position: relative;
  padding-top: 92px;
  padding-bottom: 64px;
  max-width: 780px;
}
.hero h1 { color: var(--white); margin-bottom: 20px; }
.hero-sub {
  font-size: 1.13rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 620px;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-dark);
  border-top: 1px solid var(--line-dark);
  padding: 0;
  max-width: var(--container);
}
.stat {
  background: rgba(21, 17, 14, 0.55);
  padding: 26px 24px;
}
.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--red-soft);
  line-height: 1.1;
}
.stat-label { font-size: 0.92rem; color: rgba(255, 255, 255, 0.75); }

/* ============================================================
   Sections
   ============================================================ */
.section { padding: 88px 0; }
.section-alt { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 56px;
  align-items: start;
}
.section-body p + p { margin-top: 18px; }
.section-body .lead { margin-bottom: 18px; }

.section-head h2 { margin-bottom: 10px; }
.section-head-center { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-sub { color: var(--ink-soft); margin-top: 12px; }

/* ---------- Services cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--coal);
  padding: 30px 28px;
}
.card-accent { border-top-color: var(--red); background: var(--white); }
.card-icon { width: 42px; height: 42px; color: var(--red); margin-bottom: 18px; }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--ink-soft); font-size: 0.97rem; }

/* ---------- Values ---------- */
.values {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 32px;
}
.value { border-top: 1px solid var(--line); padding-top: 20px; }
.value-num {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--red);
  letter-spacing: 0.08em;
}
.value h3 { margin: 8px 0 8px; }
.value p { font-size: 0.93rem; color: var(--ink-soft); }

/* ---------- Industries ---------- */
.industries {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.industry { border: 1px solid var(--line); background: var(--paper); }
.industry img { width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; }
.industry figcaption {
  padding: 12px 16px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--coal);
  border-top: 2px solid var(--red);
}
.cargo-note {
  margin: 36px auto 0;
  max-width: 820px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---------- Process (dark band) ---------- */
.section-dark {
  background: linear-gradient(170deg, var(--coal) 0%, var(--coal-deep) 100%);
  color: rgba(255, 255, 255, 0.85);
}
.section-dark h2 { color: var(--white); }
.section-dark .section-sub { color: rgba(255, 255, 255, 0.7); }

.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
  counter-reset: step;
}
.step {
  position: relative;
  border: 1px solid var(--line-dark);
  padding: 22px 18px 20px;
  background: rgba(255, 255, 255, 0.03);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--red-soft);
  color: var(--red-soft);
  font-family: var(--font-serif);
  font-weight: 700;
  margin-bottom: 12px;
}
.step-text { display: block; font-size: 0.95rem; font-weight: 600; color: var(--white); }

.fields {
  margin-top: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line-dark);
  padding-top: 36px;
}
.fields-label { font-size: 0.95rem; color: rgba(255, 255, 255, 0.7); }
.fields-list { list-style: none; display: flex; gap: 12px; flex-wrap: wrap; }
.fields-list li {
  border: 1px solid var(--red-soft);
  color: var(--red-soft);
  padding: 6px 18px;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
}

/* ---------- Routes ---------- */
.route-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}
.route-tab {
  background: none;
  border: 1px solid var(--line);
  padding: 9px 18px;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.route-tab:hover { border-color: var(--red); color: var(--red-deep); }
.route-tab.active { background: var(--coal); color: var(--white); border-color: var(--coal); }
.route-map { border: 1px solid var(--line); }
.route-map img { width: 100%; height: auto; display: block; }

/* ---------- Contact ---------- */
.contact-map {
  display: block;
  margin-top: 30px;
  border: 1px solid var(--line);
}
.contact-map img { width: 100%; height: auto; display: block; }
.map-caption { font-size: 0.85rem; color: var(--ink-soft); margin-top: 10px; }
.map-caption a { color: var(--ink-soft); }

.contact-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  padding: 36px;
}
.contact-list { display: flex; flex-direction: column; }
.contact-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.contact-row dt { font-weight: 700; color: var(--coal); }
.contact-row dd a { color: var(--red-deep); font-weight: 600; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--coal-deep);
  color: rgba(255, 255, 255, 0.72);
  padding: 56px 0 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  padding-bottom: 40px;
}
.footer-brand { max-width: 420px; }
.footer-logo { width: 34px; height: 34px; margin-bottom: 14px; }
.footer-brand .brand-word { color: var(--white); height: 15px; margin-bottom: 14px; }
.footer-brand p { font-size: 0.95rem; }
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { color: rgba(255, 255, 255, 0.72); text-decoration: none; font-size: 0.95rem; }
.footer-nav a:hover { color: var(--red-soft); }
.footer-legalname { font-weight: 600; color: rgba(255, 255, 255, 0.85); margin-bottom: 8px; }
.footer-privacy {
  border-top: 1px solid var(--line-dark);
  padding-top: 18px;
  padding-bottom: 4px;
  font-size: 13px;
  line-height: 22px;
  color: rgba(255, 255, 255, 0.45);
}
.footer-legal {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line-dark);
  padding-top: 18px;
  padding-bottom: 18px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}
.footer-legal a { color: rgba(255, 255, 255, 0.7); }
.footer-legal a:hover { color: var(--red-soft); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 920px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .industries { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .section-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .section { padding: 60px 0; }
  .cards { grid-template-columns: 1fr; }
  .values { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { padding-top: 60px; }

  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 24px 20px;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .main-nav .nav-cta { border: none; padding: 12px 0; }
  .topbar-inner { justify-content: center; }
  .topbar-note { display: none; }
}