:root {
  --primary: #3FB68A;
  --primary-dark: #1F7A6F;
  --secondary: #00857C;
  --bg: #F7FAF8;
  --card: #FFFFFF;
  --border: #E2EDE7;
  --text: #0F1A14;
  --text-muted: #4A5A52;
  --text-tertiary: #8095896;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px;
  color: var(--text);
  line-height: 1.7;
  background: var(--bg);
}

header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--primary);
  margin-bottom: 24px;
}

header .logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 20px;
}

header .name { font-size: 20px; font-weight: 700; }
header .sub { font-size: 12px; color: var(--text-muted); }

h1 {
  font-size: 22px;
  margin: 24px 0 8px;
  color: var(--primary-dark);
}

h2 {
  font-size: 17px;
  margin-top: 28px;
  color: var(--text);
  border-left: 3px solid var(--primary);
  padding-left: 10px;
}

h3 {
  font-size: 15px;
  margin: 16px 0 4px;
  color: var(--text);
}

p, li { font-size: 14px; }
ul { padding-left: 20px; }

a { color: var(--secondary); text-decoration: none; }
a:hover { text-decoration: underline; }

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  background: var(--card);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

th, td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 14px;
  vertical-align: top;
}

th {
  width: 32%;
  color: var(--text-muted);
  font-weight: 600;
  white-space: nowrap;
  background: var(--bg);
}

tr:last-child th, tr:last-child td { border-bottom: none; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  margin: 16px 0;
}

.card h3 { margin-top: 0; color: var(--primary-dark); }

.faq-item { margin-top: 14px; }
.faq-item h3 { color: var(--text); margin: 0 0 4px; }
.faq-item p { margin: 0; color: var(--text-muted); }

.updated {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}

footer a { margin: 0 8px; }