:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #18202e;
  --muted: #667085;
  --line: #d8dee8;
  --accent: #1769e0;
  --accent-dark: #0d3f8f;
  --success: #0b7f57;
  --shadow: 0 18px 50px rgba(24, 32, 46, 0.09);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(23, 105, 224, 0.12), transparent 28rem),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 58%, #eef3f9 100%);
  letter-spacing: 0;
}

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

.site-header {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 17px;
  font-weight: 700;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
  color: var(--muted);
}

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

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.72fr);
  align-items: center;
  gap: 56px;
  padding: 44px 0 76px;
}

.hero-copy h1 {
  margin: 0 0 22px;
  max-width: 680px;
  font-size: clamp(44px, 6vw, 78px);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: 0;
}

.hero-copy p,
.section p {
  margin: 0;
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.85;
}

.hero-panel {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(216, 222, 232, 0.92);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 12px;
}

.hero-panel div {
  padding: 22px;
  border-bottom: 1px solid var(--line);
}

.hero-panel div:last-child {
  border-bottom: 0;
}

.label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

.hero-panel strong {
  display: block;
  font-size: 20px;
  line-height: 1.45;
}

.section {
  padding: 54px 0;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 18px;
  font-size: 30px;
  line-height: 1.25;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 48px;
  align-items: start;
}

.status-list {
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.status-list li {
  min-height: 64px;
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.status-list li:last-child {
  border-bottom: 0;
}

.status-list span {
  color: var(--muted);
}

.status-list strong {
  color: var(--success);
}

.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 36px auto 0;
  padding: 28px 0 42px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

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

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

  nav {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
  }

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

  .hero {
    min-height: auto;
    gap: 32px;
    padding: 24px 0 58px;
  }

  .hero-copy h1 {
    font-size: 46px;
  }

  .hero-copy p,
  .section p {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .site-header,
  main,
  .site-footer {
    width: min(100% - 24px, 1120px);
  }

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

  .hero-copy h1 {
    font-size: 38px;
  }

  .hero-panel div {
    padding: 18px;
  }

  .status-list li {
    flex-direction: column;
    gap: 6px;
  }
}