:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --ink: #13202f;
  --muted: #637083;
  --line: #d9e1ec;
  --accent: #146c94;
  --accent-2: #d9862b;
  --panel: #ffffff;
  --shadow: 0 18px 42px rgba(31, 45, 72, 0.1);
  font-family: Inter, "SF Pro Display", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 0%, rgba(20, 108, 148, 0.12), transparent 36rem),
    radial-gradient(circle at 88% 6%, rgba(217, 134, 43, 0.12), transparent 28rem),
    var(--bg);
  color: var(--ink);
}

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

.shell {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  padding: 44px 0;
}

.hero {
  padding: 46px 2px 28px;
}

.eyebrow,
h1,
h2,
p {
  margin: 0;
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

h1 {
  max-width: 900px;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1;
}

.summary {
  max-width: 760px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.tool-card,
.panel {
  border: 1px solid rgba(19, 32, 47, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.tool-card {
  display: grid;
  gap: 12px;
  min-height: 240px;
  padding: 24px;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: rgba(20, 108, 148, 0.24);
  box-shadow: 0 24px 58px rgba(31, 45, 72, 0.14);
}

.tool-card.primary {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(238, 247, 251, 0.96));
}

.tag {
  width: fit-content;
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(20, 108, 148, 0.1);
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
}

.tool-card h2 {
  font-size: clamp(24px, 3vw, 34px);
}

.tool-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.tool-card strong {
  align-self: end;
  color: var(--accent);
  font-size: 15px;
}

.quick-links {
  margin-top: 16px;
  padding: 20px 24px;
}

.quick-links h2 {
  margin-bottom: 12px;
  font-size: 18px;
}

.quick-links div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.quick-links a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 13px;
  color: var(--accent);
  font-weight: 800;
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 20px, 760px);
    padding: 22px 0;
  }

  .hero {
    padding: 22px 0 18px;
  }

  h1 {
    font-size: 40px;
  }

  .summary {
    font-size: 15px;
  }

  .tool-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .tool-card {
    min-height: 190px;
    padding: 18px;
  }
}