:root {
  --bg: #f4ecdf;
  --bg-strong: #fffaf1;
  --ink: #1c2530;
  --ink-soft: #5f6c77;
  --line: rgba(204, 188, 163, 0.85);
  --shadow: 0 24px 60px rgba(61, 44, 20, 0.12);
  --blue: #173e5a;
  --blue-strong: #0f2d45;
  --orange: #bf5a12;
  --orange-soft: #fff1dc;
  --radius-xl: 30px;
  --radius-lg: 24px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(191, 90, 18, 0.15), transparent 28%),
    radial-gradient(circle at top right, rgba(23, 62, 90, 0.14), transparent 32%),
    linear-gradient(180deg, #f8f2e7 0%, #f1eadf 100%);
  color: var(--ink);
  font: 16px/1.6 "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

.shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 24px 56px;
}

.hero {
  padding: 34px 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, rgba(23, 62, 90, 0.96), rgba(16, 38, 60, 0.94)),
    var(--bg-strong);
  color: #fff;
  box-shadow: var(--shadow);
}

.eyebrow,
.tool-tag {
  margin: 0;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: rgba(255, 255, 255, 0.68);
}

.hero h1 {
  margin: 8px 0 14px;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.05;
}

.hero-copy {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 260px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 252, 246, 0.92);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
}

.tool-card-primary {
  background:
    linear-gradient(145deg, rgba(255, 245, 226, 0.98), rgba(243, 249, 255, 0.96));
}

.tool-card h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.15;
}

.tool-card p {
  margin: 0;
  color: var(--ink-soft);
}

.tool-tag {
  color: var(--orange);
}

.tool-tag.muted,
.tool-link.muted {
  color: #80715c;
}

.tool-link {
  margin-top: auto;
  color: var(--blue);
  font-weight: 800;
}

code {
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--orange-soft);
  color: var(--orange);
  font-size: 0.92em;
}

@media (max-width: 720px) {
  .shell {
    padding: 20px 16px 32px;
  }

  .hero,
  .tool-card {
    padding: 22px 20px;
  }

  .tool-card {
    min-height: unset;
  }
}