:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #20232a;
  --muted: #657080;
  --line: #dbe3ec;
  --accent: #0f766e;
  --accent-2: #b7475d;
  --soft: #e7f4f2;
  --warm: #fff0e5;
  --shadow: 0 18px 48px rgba(22, 43, 62, 0.11);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.nav a {
  border-radius: 8px;
  color: var(--muted);
  padding: 8px 12px;
}

.nav a:hover,
.nav a[aria-current="page"] {
  background: var(--soft);
  color: var(--accent);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  align-items: center;
  gap: 48px;
  max-width: 1120px;
  margin: 18px auto 0;
  padding: 52px 24px 64px;
}

.hero-copy h1,
.page-title h1 {
  margin: 0;
  font-size: 44px;
  line-height: 1.18;
}

.lead,
.page-title p {
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-2);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
}

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

.button {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  font-weight: 700;
}

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

.button.secondary {
  background: var(--surface);
  color: var(--accent);
}

.hero-visual {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.section,
.page-title,
.timeline,
.info-panel {
  max-width: 1120px;
  margin: 0 auto;
  padding: 46px 24px;
}

.section-heading {
  margin-bottom: 22px;
}

.section-heading h2,
.split h2 {
  margin: 0;
  font-size: 28px;
}

.schedule {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.schedule article,
.note-stack article,
.timeline article,
.info-panel > div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 22px;
}

.schedule span,
.timeline time {
  color: var(--accent-2);
  font-size: 14px;
  font-weight: 700;
}

.schedule h3,
.info-panel h2 {
  margin: 8px 0 8px;
  font-size: 20px;
}

.schedule p,
.note-stack p,
.timeline p,
.info-panel p,
.split p {
  margin: 0;
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
  gap: 28px;
  align-items: start;
  background: linear-gradient(90deg, var(--warm), rgba(255, 255, 255, 0));
  max-width: none;
}

.split > * {
  max-width: 520px;
}

.split > div:first-child {
  justify-self: end;
  padding-left: 24px;
}

.note-stack {
  display: grid;
  gap: 14px;
  padding-right: 24px;
}

.note-stack strong {
  color: var(--accent);
}

.page-title {
  padding-top: 54px;
  padding-bottom: 26px;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline article {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 22px;
}

.timeline h2 {
  margin: 0 0 8px;
  font-size: 22px;
}

.info-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  max-width: 1120px;
  margin: 30px auto 0;
  padding: 26px 24px 34px;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--accent);
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero,
  .split {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero {
    padding-top: 28px;
  }

  .split > div:first-child,
  .note-stack {
    justify-self: stretch;
    max-width: none;
    padding-left: 24px;
    padding-right: 24px;
  }

  .hero-copy h1,
  .page-title h1 {
    font-size: 34px;
  }

  .schedule,
  .info-panel {
    grid-template-columns: 1fr;
  }

  .timeline article {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}