/* =========================================================
   Maritime Resources — Glencore-inspired styling
   ========================================================= */

:root {
  --bg: #0b0d0f;
  --bg-2: #111417;
  --bg-3: #161a1e;
  --line: #25292e;
  --text: #e9ecef;
  --text-dim: #9aa1a8;
  --muted: #6b7177;
  --accent: #d6a55c;       /* 暗金 */
  --accent-2: #c6913e;
  --green: #4ea878;
  --red: #d36664;
  --serif: "Noto Serif SC", "Source Han Serif", serif;
  --sans: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --container: 1280px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--text); font-family: var(--sans); font-weight: 400; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--accent); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ---------- Top bar ---------- */
.top-bar {
  background: #07090b;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  color: var(--text-dim);
  height: 36px;
  display: flex; align-items: center;
}
.top-bar__inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.top-bar__left { display: flex; align-items: center; gap: 14px; }
.top-bar__divider { color: #333; }
.top-bar__left a:hover { color: var(--accent); }
.top-bar__right { overflow: hidden; max-width: 60%; }
.ticker {
  display: inline-flex; gap: 32px;
  white-space: nowrap;
  animation: ticker 40s linear infinite;
}
.ticker__item { font-variant-numeric: tabular-nums; letter-spacing: .02em; }
.ticker__item.up { color: var(--green); }
.ticker__item.down { color: var(--red); }
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- Header / Nav ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11,13,15,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.logo { display: inline-flex; align-items: center; gap: 12px; color: var(--text); }
.logo__mark {
  width: 30px; height: 30px;
  background: linear-gradient(135deg, var(--accent), #7a5a26);
  position: relative;
  clip-path: polygon(50% 0,100% 50%,50% 100%,0 50%);
}
.logo__text {
  font-weight: 800; letter-spacing: .08em; font-size: 16px;
}
.logo__text em { font-style: normal; font-weight: 400; color: var(--text-dim); margin-left: 4px; }
.logo--light .logo__text { color: var(--text); }

.nav > ul { display: flex; gap: 32px; list-style: none; align-items: center; }
.nav li { position: relative; }
.nav a { font-size: 14px; font-weight: 500; letter-spacing: .02em; padding: 28px 0; display: inline-block; }
.nav__cta {
  background: var(--accent);
  color: #0b0d0f !important;
  padding: 10px 18px !important;
  font-weight: 600;
}
.nav__cta:hover { background: var(--accent-2); color: #0b0d0f !important; }

.mega {
  position: absolute; top: 100%; left: -24px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 28px 32px;
  display: none; grid-template-columns: 1fr 1fr; gap: 32px;
  min-width: 540px;
}
.nav li:hover .mega { display: grid; }
.mega h5 { color: var(--accent); font-size: 12px; letter-spacing: .12em; margin-bottom: 12px; }
.mega a { display: block; padding: 6px 0; color: var(--text-dim); font-weight: 400; }
.mega a:hover { color: var(--text); }

.hamburger { display: none; background: none; border: none; flex-direction: column; gap: 5px; cursor: pointer; }
.hamburger span { width: 24px; height: 2px; background: var(--text); display: block; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex; align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero__media {
  position: absolute; inset: 0;
  background:
    radial-gradient(1200px 700px at 80% 10%, rgba(214,165,92,.18), transparent 60%),
    radial-gradient(900px 600px at 0% 90%, rgba(31,67,109,.35), transparent 60%),
    linear-gradient(180deg, #07090b 0%, #0b1014 100%);
}
.hero__media::after {
  content: "";
  position: absolute; inset: 0;
  background: url("img/hero.svg") center/cover no-repeat;
  opacity: .55;
  mix-blend-mode: screen;
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,9,11,.2) 0%, rgba(7,9,11,.85) 100%);
}
.hero__content { position: relative; z-index: 2; padding: 120px 0 80px; max-width: 1100px; }

.eyebrow {
  font-size: 12px;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(40px, 6.2vw, 88px);
  line-height: 1.05;
  letter-spacing: -.01em;
}
.hero__title span { display: block; }
.hero__accent { color: var(--accent); font-style: italic; font-weight: 400; }

.hero__sub {
  margin-top: 28px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-dim);
  max-width: 720px;
}

.hero__ctas { display: flex; gap: 16px; margin-top: 40px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .05em;
  cursor: pointer;
  transition: all .25s ease;
}
.btn--primary { background: var(--accent); color: #0b0d0f; }
.btn--primary:hover { background: var(--accent-2); color: #0b0d0f; }
.btn--ghost { border-color: var(--text); color: var(--text); }
.btn--ghost:hover { background: var(--text); color: #0b0d0f; }
.btn--lg { padding: 18px 34px; font-size: 15px; }

.hero__stats {
  margin-top: 64px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 28px;
}
.hero__stats > div { display: flex; flex-direction: column; gap: 4px; }
.hero__stats strong {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 30px;
  color: var(--text);
}
.hero__stats span { font-size: 12px; color: var(--text-dim); letter-spacing: .05em; }

.hero__scroll {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  font-size: 11px; letter-spacing: .3em; color: var(--text-dim);
  z-index: 2;
}

/* ---------- Purpose ---------- */
.purpose {
  padding: 120px 0;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.purpose__grid { display: grid; grid-template-columns: 1fr 2.4fr; gap: 80px; align-items: start; }
.purpose__label { display: flex; flex-direction: column; gap: 16px; padding-top: 8px; }
.rule { width: 60px; height: 2px; background: var(--accent); }
.purpose__label h6 { font-size: 12px; letter-spacing: .25em; text-transform: uppercase; color: var(--text-dim); }

.purpose__text h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.15;
  margin-bottom: 28px;
}
.purpose__text p { color: var(--text-dim); font-size: 17px; line-height: 1.85; max-width: 720px; }

.link-arrow {
  display: inline-block;
  margin-top: 28px;
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 4px;
}
.link-arrow:hover { color: var(--accent-2); border-color: var(--accent-2); }

/* ---------- Section heading ---------- */
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.15;
  margin: 14px 0 18px;
}
.section-head__sub { color: var(--text-dim); font-size: 16px; line-height: 1.8; }
.section-head--light h2 { color: var(--text); }

/* ---------- Commodities Grid ---------- */
.commodities {
  padding: 120px 0;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.commod-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 240px;
  gap: 12px;
}
.commod-card {
  position: relative;
  background: var(--bg-3) var(--bg, none) center/cover no-repeat;
  background-image: var(--bg);
  overflow: hidden;
  padding: 24px;
  display: flex; flex-direction: column; justify-content: space-between;
  border: 1px solid var(--line);
  color: var(--text);
  transition: transform .35s ease, border-color .25s ease;
}
.commod-card::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,9,11,.25) 0%, rgba(7,9,11,.85) 100%);
  z-index: 0;
}
.commod-card > * { position: relative; z-index: 1; }
.commod-card:hover { transform: translateY(-4px); border-color: var(--accent); color: var(--text); }
.commod-card__cat { font-size: 11px; letter-spacing: .25em; text-transform: uppercase; color: var(--accent); }
.commod-card__title {
  font-family: var(--serif);
  font-size: 26px; line-height: 1.2; font-weight: 600;
}
.commod-card__title em { font-style: italic; font-weight: 400; color: var(--text-dim); font-size: 18px; }
.commod-card__meta { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--text-dim); }

.commod-card--lg { grid-column: span 2; grid-row: span 2; }
.commod-card--lg .commod-card__title { font-size: 42px; }
.commod-card--lg .commod-card__title em { font-size: 26px; }
.commod-card--wide { grid-column: span 2; }
.commod-card--wide .commod-card__title { font-size: 32px; }

/* ---------- Network ---------- */
.network {
  padding: 120px 0;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.network__inner { display: grid; grid-template-columns: 1fr 2fr; gap: 80px; align-items: start; }
.network__head h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(30px, 3vw, 44px);
  line-height: 1.2;
  margin-top: 12px;
}
.network__grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.net-card { background: var(--bg-2); padding: 32px; min-height: 200px; }
.net-card h4 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--accent);
}
.net-card p { color: var(--text-dim); font-size: 14px; line-height: 1.8; }

/* ---------- Quotes ---------- */
.quotes {
  padding: 120px 0;
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
}
.quote-table { border: 1px solid var(--line); }
.quote-row {
  display: grid;
  grid-template-columns: 1.2fr 1.6fr 1.6fr 1.4fr 1.4fr;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--text);
}
.quote-row:last-child { border-bottom: none; }
.quote-row:hover { background: rgba(214,165,92,.04); }
.quote-row--head {
  background: #0d1013;
  font-size: 12px; letter-spacing: .15em; text-transform: uppercase; color: var(--text-dim);
}
.quote-row > div:nth-child(4) { color: var(--accent); font-weight: 600; font-variant-numeric: tabular-nums; }

/* ---------- News ---------- */
.news {
  padding: 120px 0;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.news__head {
  display: flex; justify-content: space-between; align-items: end;
  margin-bottom: 48px; gap: 24px;
}
.news__head h2 {
  font-family: var(--serif);
  font-size: clamp(34px, 4vw, 52px);
  margin-top: 10px;
  font-weight: 600;
  line-height: 1.1;
}
.news__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.news-card {
  background: var(--bg-3);
  padding: 28px;
  border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 16px;
  transition: border-color .25s ease, transform .25s ease;
}
.news-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.news-card__date {
  font-size: 12px; letter-spacing: .15em; color: var(--accent);
}
.news-card h4 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.35;
}
.news-card p { color: var(--text-dim); font-size: 14px; line-height: 1.7; flex: 1; }
.news-card a { font-size: 13px; color: var(--accent); font-weight: 600; }

/* ---------- CTA ---------- */
.cta {
  padding: 100px 0;
  background:
    radial-gradient(800px 400px at 80% 20%, rgba(214,165,92,.12), transparent 70%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}
.cta__inner { display: flex; align-items: center; justify-content: space-between; gap: 64px; flex-wrap: wrap; }
.cta__inner h2 {
  font-family: var(--serif);
  font-size: clamp(28px, 3.4vw, 48px);
  line-height: 1.15;
  margin-top: 10px;
  font-weight: 600;
}
.cta__sub { color: var(--text-dim); margin-top: 16px; max-width: 540px; }

/* ---------- Footer ---------- */
.footer {
  background: #07090b;
  padding: 80px 0 24px;
  color: var(--text-dim);
}
.footer__top {
  display: grid; grid-template-columns: 1.2fr 2fr; gap: 80px;
  padding-bottom: 56px; border-bottom: 1px solid var(--line);
}
.footer__brand p { margin-top: 24px; font-size: 13px; line-height: 1.8; }
.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer__cols h6 {
  font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 16px;
}
.footer__cols a { display: block; padding: 6px 0; font-size: 14px; }
.footer__bottom {
  padding-top: 24px;
  display: flex; justify-content: space-between; font-size: 12px; color: var(--muted);
}

/* ---------- Inner pages ---------- */
.page-hero {
  position: relative;
  min-height: 56vh;
  display: flex; align-items: end;
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(1000px 600px at 90% 10%, rgba(214,165,92,.18), transparent 60%),
    radial-gradient(800px 500px at 0% 100%, rgba(20,40,80,.4), transparent 70%),
    var(--bg);
}
.page-hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(46px, 6vw, 86px);
  line-height: 1.05;
  letter-spacing: -.01em;
  max-width: 1100px;
}
.page-hero p { color: var(--text-dim); font-size: 17px; line-height: 1.8; margin-top: 24px; max-width: 720px; }

.commod-section {
  padding: 100px 0;
  border-bottom: 1px solid var(--line);
}
.commod-section:nth-child(even) { background: var(--bg-2); }
.commod-detail { display: grid; grid-template-columns: 1.1fr 1fr; gap: 80px; align-items: center; }
.commod-detail__visual {
  aspect-ratio: 4/3;
  background: var(--bg-3) center/cover no-repeat;
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.commod-detail__visual::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,9,11,0) 0%, rgba(7,9,11,.4) 100%);
}
.commod-detail h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(32px, 3.6vw, 52px);
  line-height: 1.15;
  margin: 10px 0 24px;
}
.commod-detail p { color: var(--text-dim); font-size: 16px; line-height: 1.8; }

.spec-list {
  margin-top: 28px; display: grid; gap: 1px;
  background: var(--line); border: 1px solid var(--line);
}
.spec-row {
  display: grid; grid-template-columns: 220px 1fr;
  padding: 14px 20px; background: var(--bg);
  font-size: 14px;
}
.spec-row > div:first-child { color: var(--text-dim); }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 80px;
  padding: 100px 0;
}
.form {
  display: grid; gap: 16px;
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label {
  display: flex; flex-direction: column; gap: 6px;
  font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-dim);
}
.form input, .form select, .form textarea {
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 14px 16px;
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color .2s ease;
}
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--accent); }
.form textarea { resize: vertical; min-height: 140px; }
.contact-side h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 26px;
  margin-bottom: 16px;
}
.contact-side p { color: var(--text-dim); font-size: 14px; line-height: 1.8; }
.contact-info { margin-top: 32px; border-top: 1px solid var(--line); padding-top: 24px; display: grid; gap: 12px; }
.contact-info a { color: var(--accent); }

/* ---------- About ---------- */
.values { padding: 100px 0; background: var(--bg-2); border-bottom: 1px solid var(--line); }
.values__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.value-card {
  border: 1px solid var(--line); background: var(--bg-3); padding: 32px;
  min-height: 220px; display: flex; flex-direction: column; gap: 14px;
}
.value-card .n {
  font-family: var(--serif);
  font-size: 32px; color: var(--accent); font-weight: 600;
}
.value-card h4 { font-family: var(--serif); font-size: 22px; font-weight: 600; }
.value-card p { color: var(--text-dim); font-size: 14px; line-height: 1.8; }

.map { padding: 100px 0; }
.map__wrap {
  position: relative; aspect-ratio: 16/8;
  background: var(--bg-2); border: 1px solid var(--line);
  background-image: url("img/world.svg");
  background-size: cover; background-position: center;
}
.pin {
  position: absolute;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(214,165,92,.18), 0 0 0 12px rgba(214,165,92,.08);
  cursor: pointer;
}
.pin span {
  position: absolute; left: 18px; top: -4px;
  white-space: nowrap;
  font-size: 12px; color: var(--text); background: rgba(7,9,11,.85);
  padding: 4px 8px; border: 1px solid var(--line);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .commod-grid { grid-template-columns: repeat(2, 1fr); }
  .news__grid { grid-template-columns: repeat(2, 1fr); }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .purpose__grid, .network__inner, .commod-detail, .footer__top, .contact-grid {
    grid-template-columns: 1fr; gap: 40px;
  }
  .footer__cols { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 720px) {
  .nav { display: none; }
  .hamburger { display: flex; }
  .top-bar__right { display: none; }
  .container { padding: 0 20px; }
  .hero__content { padding: 80px 0 40px; }
  .quote-row { grid-template-columns: 1fr 1fr; gap: 4px 12px; }
  .quote-row--head { display: none; }
  .quote-row > div::before { content: attr(data-label); color: var(--text-dim); font-size: 11px; display: block; }
  .commod-grid { grid-template-columns: 1fr; grid-auto-rows: 220px; }
  .commod-card--lg, .commod-card--wide { grid-column: span 1; grid-row: span 1; }
  .news__grid, .values__grid, .footer__cols { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
}