:root {
  color-scheme: light;
  --background: #ffffff;
  --text: #101114;
  --muted: #606572;
  --rule: #d9dbe1;
  --accent: #2457e6;
  --page-gutter: clamp(28px, 4.45vw, 72px);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--background);
  color: var(--text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
}

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

.site-header {
  min-height: 86px;
  padding: 0 var(--page-gutter);
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  font-size: 27px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 30px;
  height: 30px;
  background: var(--accent);
}

nav {
  align-self: stretch;
  display: flex;
  align-items: center;
  gap: 48px;
}

.nav-link {
  height: 100%;
  padding: 0 8px;
  display: inline-flex;
  align-items: center;
  border-bottom: 3px solid transparent;
  font-size: 20px;
  transition: color 160ms ease, border-color 160ms ease;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

main {
  flex: 1;
  padding: 0 var(--page-gutter);
}

.hero {
  padding: 73px 0 76px;
}

.hero h1 {
  max-width: 1000px;
  margin: 0;
  font-size: clamp(48px, 5vw, 76px);
  line-height: 1.14;
  letter-spacing: -0.055em;
  font-weight: 780;
}

.hero p {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.6;
  letter-spacing: 0.015em;
}

.reports h2 {
  margin: 0 0 15px;
  font-size: 30px;
  line-height: 1.3;
  letter-spacing: -0.025em;
}

.report-list {
  border-top: 1px solid var(--rule);
}

.report {
  min-height: 144px;
  padding: 24px 2px;
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 145px 54px;
  align-items: center;
  gap: 28px;
  transition: background-color 160ms ease, color 160ms ease;
}

.report:hover,
.report:focus-visible {
  background: #f7f8fb;
  outline: none;
}

.report:hover strong,
.report:focus-visible strong,
.report:hover .arrow,
.report:focus-visible .arrow {
  color: var(--accent);
}

.report-copy {
  display: block;
}

.report-copy strong {
  display: block;
  margin-bottom: 8px;
  font-size: 28px;
  line-height: 1.3;
  letter-spacing: -0.02em;
  transition: color 160ms ease;
}

.report-copy > span {
  color: var(--muted);
  font-size: 19px;
  line-height: 1.55;
}

.report time {
  color: var(--muted);
  font-size: 19px;
  font-variant-numeric: tabular-nums;
}

.arrow {
  color: var(--accent);
  font-family: Arial, sans-serif;
  font-size: 42px;
  line-height: 1;
  text-align: right;
  transition: transform 160ms ease;
}

.report:hover .arrow,
.report:focus-visible .arrow {
  transform: translateX(5px);
}

footer {
  min-height: 96px;
  margin-top: 50px;
  padding: 0 var(--page-gutter);
  border-top: 1px solid var(--rule);
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
}

@media (max-width: 760px) {
  .site-header {
    min-height: 72px;
  }

  .brand {
    gap: 11px;
    font-size: 18px;
  }

  .brand-mark {
    width: 22px;
    height: 22px;
  }

  nav {
    gap: 17px;
  }

  .nav-link {
    padding: 0 3px;
    font-size: 15px;
  }

  .hero {
    padding: 54px 0 58px;
  }

  .hero h1 {
    font-size: clamp(40px, 12vw, 56px);
  }

  .hero p {
    margin-top: 20px;
    font-size: 18px;
  }

  .reports h2 {
    font-size: 24px;
  }

  .report {
    min-height: 0;
    padding: 24px 0;
    grid-template-columns: minmax(0, 1fr) 32px;
    gap: 10px 14px;
  }

  .report-copy {
    grid-column: 1;
  }

  .report-copy strong {
    font-size: 22px;
  }

  .report-copy > span {
    font-size: 16px;
  }

  .report-copy br {
    display: none;
  }

  .report time {
    grid-column: 1;
    grid-row: 2;
    font-size: 15px;
  }

  .arrow {
    grid-column: 2;
    grid-row: 1 / span 2;
    font-size: 31px;
  }

  footer {
    min-height: 84px;
    margin-top: 28px;
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}