:root {
  --sage: #597a66;
  --sage-dark: #3f5c4d;
  --cream: #f5f1ea;
  --ink: #2e3833;
  --muted: #6b756f;
  --line: rgba(89, 122, 102, 0.16);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "PingFang SC", "PingFang TC", "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(180deg, #f7f3eb 0%, #eef3ef 100%);
  color: var(--ink);
  line-height: 1.7;
}

a { color: var(--sage); }
a:hover { color: var(--sage-dark); }

.wrap {
  width: min(820px, 100%);
  margin: 0 auto;
  padding: 40px 20px 64px;
}

header.site {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--ink);
}

nav.site a {
  margin-left: 14px;
  text-decoration: none;
  font-size: 0.95rem;
}

.hero, .panel {
  background: rgba(255,255,255,0.88);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px 24px;
  box-shadow: 0 14px 34px rgba(46,56,51,0.07);
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.7rem, 4vw, 2.2rem);
}

.hero p.lead {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 1.05rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 12px;
  padding: 11px 16px;
  font-weight: 600;
}

.btn-primary {
  background: var(--sage);
  color: #fff;
}

.btn-primary:hover { background: var(--sage-dark); color: #fff; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--sage-dark);
}

.features {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.feature {
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(89,122,102,0.06);
}

.feature strong { display: block; margin-bottom: 4px; }

.panel h1, .panel h2 {
  margin-top: 0;
}

.panel h2 {
  margin-top: 28px;
  font-size: 1.15rem;
}

.panel p, .panel li {
  color: var(--ink);
}

.panel ul {
  padding-left: 1.2em;
}

footer.site {
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.9rem;
}

.lang-switch a {
  margin-right: 10px;
  text-decoration: none;
}