:root {
  --ink: #172033;
  --muted: #657084;
  --line: #d9e0ea;
  --paper: #ffffff;
  --wash: #f4f7fb;
  --navy: #143a5a;
  --teal: #0f766e;
  --gold: #b58122;
  --red: #a63f3f;
  --shadow: 0 18px 45px rgba(18, 32, 51, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 230px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: #fff;
  background: var(--navy);
  border-radius: 8px;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  color: #334155;
  font-size: 15px;
}

.nav a:hover {
  color: var(--teal);
}

.icon-button,
.button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
}

.icon-button {
  width: 44px;
  height: 38px;
  font-weight: 700;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  font-weight: 700;
}

.button.primary {
  border-color: var(--teal);
  background: var(--teal);
  color: #fff;
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.button.full {
  width: 100%;
}

.hero {
  min-height: 86vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  position: relative;
  overflow: hidden;
  background: var(--navy);
}

.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 26, 43, 0.88), rgba(11, 26, 43, 0.44)),
    url("./hero-logistics.png") center / cover;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 36px));
  margin: auto;
  padding: 72px 0 96px;
  color: #fff;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 850px;
  margin: 0 0 20px;
  font-size: clamp(38px, 7vw, 76px);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero p {
  max-width: 680px;
  font-size: 19px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin: 30px 0;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  width: min(680px, 100%);
  gap: 1px;
  margin: 42px 0 0;
  background: rgba(255, 255, 255, 0.25);
}

.hero-stats div {
  padding: 18px;
  background: rgba(255, 255, 255, 0.12);
}

.hero-stats dt {
  font-size: 30px;
  font-weight: 800;
}

.hero-stats dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
}

.section {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 72px 0;
}

.band {
  width: 100%;
  padding-left: max(18px, calc((100% - 1120px) / 2));
  padding-right: max(18px, calc((100% - 1120px) / 2));
  background: var(--wash);
}

.section-head {
  margin-bottom: 28px;
}

.section-head.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

h2 {
  margin: 0;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: 0;
}

h3 {
  margin: 10px 0 8px;
  font-size: 19px;
}

.feature-grid,
.member-grid,
.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-grid article,
.member-card,
.event-card,
.panel,
.decision-list {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 1px 0 rgba(18, 32, 51, 0.04);
}

.feature-grid article {
  padding: 22px;
}

.feature-icon,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: #eef8f6;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
}

.toolbar {
  display: grid;
  grid-template-columns: 1fr 180px 180px;
  gap: 12px;
  margin-bottom: 18px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

textarea {
  resize: vertical;
}

label {
  display: grid;
  gap: 6px;
  color: #334155;
  font-size: 14px;
  font-weight: 700;
}

.member-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.member-card {
  padding: 18px;
}

.member-card header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.member-card p {
  color: var(--muted);
  margin: 8px 0 14px;
}

.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  padding: 4px 8px;
  border-radius: 999px;
  background: #f1f5f9;
  color: #475569;
  font-size: 12px;
  font-weight: 700;
}

.market-layout,
.contact-layout,
.split {
  display: grid;
  grid-template-columns: 410px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.panel {
  display: grid;
  gap: 14px;
  padding: 20px;
}

.post-list {
  display: grid;
  gap: 12px;
}

.post-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--teal);
  border-radius: 8px;
  background: #fff;
}

.post-card.supply {
  border-left-color: var(--gold);
}

.post-card h3 {
  margin: 4px 0 4px;
}

.post-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}

.timeline {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.event-card {
  padding: 20px;
}

.event-date {
  color: var(--red);
  font-weight: 800;
}

.split {
  grid-template-columns: 1fr 1fr;
}

.decision-list {
  padding: 20px;
}

.decision-list p {
  margin: 0 0 14px;
}

.form-note {
  min-height: 24px;
  margin: 0;
  color: var(--teal);
  font-weight: 700;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .feature-grid,
  .member-grid,
  .timeline,
  .market-layout,
  .contact-layout,
  .split {
    grid-template-columns: 1fr;
  }

  .toolbar,
  .hero-stats {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 760px;
  }
}