:root {
  color-scheme: light;
  --bg: #f4efe7;
  --panel: rgba(255, 252, 247, 0.86);
  --ink: #1f1a16;
  --muted: #6d6258;
  --line: rgba(43, 34, 27, 0.12);
  --accent: #b45f34;
  --accent-deep: #7d3b18;
  --accent-soft: rgba(180, 95, 52, 0.12);
  --shadow: 0 24px 60px rgba(41, 28, 18, 0.14);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC",
    sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255, 213, 180, 0.72), transparent 42%),
    radial-gradient(circle at right 10% top 18%, rgba(205, 170, 130, 0.2), transparent 28%),
    linear-gradient(180deg, #f7f1ea 0%, #efe6db 100%);
  color: var(--ink);
}

a {
  color: var(--accent-deep);
}

.shell {
  width: min(1040px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.hero,
.card {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.hero {
  border-radius: 36px;
  padding: 28px;
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -40% auto;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(180, 95, 52, 0.18), transparent 70%);
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.04em;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  margin-top: 18px;
  font-size: clamp(2.7rem, 7vw, 5.4rem);
  letter-spacing: -0.05em;
  max-width: 9ch;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.05rem;
}

p,
li {
  color: var(--ink);
  line-height: 1.7;
  font-size: 1rem;
}

.muted,
.meta,
small {
  color: var(--muted);
}

.hero-copy {
  display: grid;
  gap: 18px;
  max-width: 640px;
  position: relative;
  z-index: 1;
}

.button-row,
.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button,
.ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease;
}

.button {
  background: var(--accent);
  color: #fff8f0;
}

.ghost {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.66);
}

.button:hover,
.ghost:hover {
  transform: translateY(-1px);
}

.grid {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.grid.cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  border-radius: var(--radius);
  padding: 24px;
}

.card strong {
  display: block;
  margin-bottom: 8px;
}

.section {
  margin-top: 18px;
}

.section-stack {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.article {
  display: grid;
  gap: 24px;
}

.article section {
  display: grid;
  gap: 10px;
}

.article ul {
  margin: 0;
  padding-left: 20px;
}

.article li + li {
  margin-top: 8px;
}

.page-head {
  display: grid;
  gap: 14px;
}

.back-link {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--muted);
}

.footer {
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.94rem;
}

.accent-box {
  border-left: 4px solid var(--accent);
  padding: 14px 16px;
  border-radius: 16px;
  background: var(--accent-soft);
}

code {
  font-family:
    "SFMono-Regular", "SF Mono", "JetBrains Mono", "Fira Code",
    "Source Code Pro", monospace;
  font-size: 0.95em;
}

@media (max-width: 760px) {
  .shell {
    width: min(100vw - 20px, 1040px);
    padding-top: 18px;
    padding-bottom: 40px;
  }

  .hero,
  .card {
    border-radius: 24px;
    padding: 20px;
  }

  .grid.cols-2 {
    grid-template-columns: 1fr;
  }
}