:root {
  --bg: #0b0b0c;
  --panel: #151516;
  --panel-2: #1e1e20;
  --text: #f4f0e8;
  --muted: #aaa49a;
  --line: rgba(244, 240, 232, 0.14);
  --red: #b82024;
  --red-bright: #e2393f;
  --white: #ffffff;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    "Noto Sans SC", "Microsoft YaHei", "PingFang SC", system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 70px;
  padding: 12px clamp(18px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
  background: rgba(11, 11, 12, 0.84);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-size: 19px;
  font-weight: 800;
}

.brand img {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  object-fit: cover;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

.main-nav a {
  border-radius: 6px;
  padding: 8px 10px;
}

.main-nav a:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--white);
}

.hero {
  position: relative;
  display: grid;
  align-items: end;
  min-height: min(760px, calc(100vh - 70px));
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.74;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 11, 12, 0.9), rgba(11, 11, 12, 0.46) 48%, rgba(11, 11, 12, 0.22)),
    linear-gradient(0deg, rgba(11, 11, 12, 0.96), rgba(11, 11, 12, 0.08) 46%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 36px));
  margin: 0 auto;
  padding: 0 0 clamp(72px, 11vh, 128px);
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--red-bright);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 16px;
  font-size: clamp(54px, 9vw, 118px);
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  font-size: clamp(30px, 5vw, 58px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  font-size: 21px;
  line-height: 1.25;
}

.hero-copy {
  max-width: 660px;
  color: #d9d4ca;
  font-size: clamp(17px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 18px;
  font-weight: 800;
}

.button.primary {
  border-color: var(--red);
  background: var(--red);
  color: white;
}

.button.ghost {
  background: rgba(255, 255, 255, 0.08);
}

.ticker {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
  background: #0f0f10;
}

.ticker span {
  min-height: 58px;
  border-right: 1px solid var(--line);
  padding: 18px 20px;
  color: #d7d0c5;
  font-size: 14px;
  text-align: center;
}

.ticker span:last-child {
  border-right: 0;
}

.section {
  width: min(var(--max), calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(70px, 10vw, 118px) 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  gap: 34px;
  align-items: end;
  margin-bottom: 34px;
}

.section-heading p,
.mission-copy,
.principle-grid p,
.card p,
.archive-item p {
  color: var(--muted);
}

.mission-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.8fr);
  gap: clamp(34px, 6vw, 76px);
}

.mission-copy {
  border-left: 2px solid var(--red);
  padding-left: 24px;
  font-size: 17px;
}

.column-grid,
.featured-grid,
.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card,
.principle-grid article,
.archive-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--panel), rgba(21, 21, 22, 0.72));
}

.card {
  min-height: 220px;
  padding: 22px;
}

.card .tag,
.archive-meta,
.principle-grid span {
  color: var(--red-bright);
  font-size: 12px;
  font-weight: 800;
}

.card h3 {
  margin: 18px 0 12px;
}

.featured-grid {
  grid-template-columns: 1.2fr 0.9fr 0.9fr;
}

.featured-card:first-child {
  min-height: 320px;
  background:
    linear-gradient(180deg, rgba(11, 11, 12, 0.18), rgba(11, 11, 12, 0.88)),
    url("assets/header.png") center / cover;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.filter-button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
}

.filter-button:hover,
.filter-button.active {
  border-color: rgba(226, 57, 63, 0.65);
  background: rgba(184, 32, 36, 0.18);
  color: var(--white);
}

.archive-list {
  display: grid;
  gap: 10px;
}

.archive-item {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr) 150px;
  gap: 18px;
  align-items: start;
  padding: 18px;
}

.archive-item h3 {
  margin-bottom: 8px;
}

.archive-date {
  color: #d8d2c9;
  font-weight: 800;
}

.archive-label {
  justify-self: end;
  border: 1px solid rgba(226, 57, 63, 0.42);
  border-radius: 999px;
  padding: 5px 10px;
  color: #f0c8c8;
  font-size: 12px;
}

.principle-grid article {
  min-height: 210px;
  padding: 24px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(18px, 4vw, 44px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer strong {
  color: var(--text);
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .main-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    min-height: 720px;
  }

  .hero-bg {
    object-position: 36% center;
  }

  .ticker {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-heading,
  .mission-grid,
  .column-grid,
  .featured-grid,
  .principle-grid {
    grid-template-columns: 1fr;
  }

  .archive-item {
    grid-template-columns: 1fr;
  }

  .archive-label {
    justify-self: start;
  }
}

@media (max-width: 520px) {
  .hero-content,
  .section {
    width: min(100% - 28px, var(--max));
  }

  .hero-actions .button {
    width: 100%;
  }

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

  .ticker span {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}