*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  background: #fff;
  color: #1c1c1e;
  line-height: 1.7;
  font-size: 16px;
}

/* ── Header ── */
header {
  border-bottom: 1px solid #e5e5ea;
  padding: 0 24px;
}
.header-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.site-title {
  font-size: 17px;
  font-weight: 600;
  color: #1c1c1e;
  text-decoration: none;
}
.site-title span {
  color: #FF9500;
}
nav a {
  font-size: 14px;
  color: #FF9500;
  text-decoration: none;
  margin-left: 20px;
}
nav a:hover { text-decoration: underline; }

/* ── Main ── */
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}
.subtitle {
  color: #6e6e73;
  font-size: 15px;
  margin-bottom: 40px;
}

h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #FF9500;
}

p { margin-bottom: 12px; color: #3a3a3c; }

/* ── FAQ ── */
.faq-list { list-style: none; }
.faq-item {
  border: 1px solid #e5e5ea;
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-item summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: "Q";
  background: #FF9500;
  color: #fff;
  border-radius: 6px;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.faq-item[open] summary {
  border-bottom: 1px solid #e5e5ea;
}
.faq-answer {
  padding: 14px 20px 14px 54px;
  font-size: 15px;
  color: #3a3a3c;
  line-height: 1.6;
}

/* ── Contact ── */
.contact-box {
  background: #f2f2f7;
  border-radius: 12px;
  padding: 24px;
  margin-top: 8px;
}
.contact-box p { margin-bottom: 16px; }
.mail-link {
  display: inline-block;
  background: #FF9500;
  color: #fff;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
}
.mail-link:hover { opacity: 0.85; }

/* ── Privacy sections ── */
.policy-section { margin-bottom: 8px; }

/* ── Footer ── */
footer {
  border-top: 1px solid #e5e5ea;
  padding: 24px;
  text-align: center;
  font-size: 13px;
  color: #8e8e93;
}
footer a { color: #FF9500; text-decoration: none; }
footer a:hover { text-decoration: underline; }