/* ===== Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --beige: #c4ab9a;
  --beige-deep: #a68e7d;
  --ink: #37332f;
  --ink-soft: #767069;
  --bg-top: #dcdcdf;
  --bg-bottom: #c7c6ca;
}

body {
  font-family: "Hiragino Sans", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(175deg, var(--bg-top) 0%, #d3d2d6 55%, var(--bg-bottom) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ===== Header(LPと同じトンマナ) ===== */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 48px;
}

.logo {
  font-family: "Didot", "Bodoni MT", "Hiragino Mincho ProN", serif;
  font-size: 22px;
  letter-spacing: 0.35em;
  font-weight: 600;
}

.logo-sub {
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--beige-deep);
  margin-left: 12px;
  vertical-align: middle;
  font-family: "Hiragino Sans", sans-serif;
}

.header-link {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--ink-soft);
  border-bottom: 1px solid rgba(58, 51, 48, 0.3);
  padding-bottom: 3px;
  transition: color 0.3s ease;
}

.header-link:hover {
  color: var(--ink);
}

/* ===== 本文カード ===== */
.doc {
  max-width: 760px;
  margin: 20px auto 0;
  padding: 56px 64px 64px;
  background: rgba(250, 249, 248, 0.86);
  backdrop-filter: blur(18px);
  border-radius: 24px;
  box-shadow: 0 24px 80px rgba(60, 52, 46, 0.12);
}

.kicker {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.45em;
  color: var(--beige-deep);
  margin-bottom: 18px;
}

.doc h1 {
  font-family: "Didot", "Bodoni MT", "Playfair Display", Georgia, serif;
  font-size: clamp(30px, 4.2vw, 46px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.meta {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(58, 51, 48, 0.15);
}

.doc section {
  margin-top: 40px;
}

.doc h2 {
  font-family: "Didot", "Bodoni MT", "Playfair Display", Georgia, serif;
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 14px;
}

.doc p {
  font-size: 14px;
  line-height: 2;
  letter-spacing: 0.03em;
  color: #4a453f;
  margin-bottom: 14px;
}

.doc ul {
  list-style: none;
  margin: 0 0 14px;
}

.doc li {
  position: relative;
  font-size: 14px;
  line-height: 2;
  letter-spacing: 0.03em;
  color: #4a453f;
  padding-left: 22px;
  margin-bottom: 8px;
}

.doc li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 13px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--beige-deep);
}

.doc strong {
  font-weight: 600;
  color: var(--ink);
}

.doc a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(166, 142, 125, 0.7);
  transition: color 0.3s ease, border-color 0.3s ease;
}

.doc a:hover {
  color: var(--beige-deep);
  border-color: var(--beige-deep);
}

/* 補足の囲み(運営者の注記) */
.note-block {
  background: rgba(196, 171, 154, 0.14);
  border-left: 2px solid var(--beige-deep);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  font-size: 13px !important;
  line-height: 1.9 !important;
  color: var(--ink-soft) !important;
}

/* ===== Footer ===== */
.doc-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  padding: 40px 24px 56px;
  font-size: 12px;
  letter-spacing: 0.14em;
}

.foot-link {
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.3s ease;
}

.foot-link:hover {
  color: var(--ink);
}

.foot-sep {
  color: rgba(118, 112, 105, 0.5);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .site-header {
    padding: 20px 24px;
  }

  .doc {
    margin-top: 8px;
    padding: 32px 24px 40px;
    border-radius: 18px;
  }

  .doc section {
    margin-top: 32px;
  }

  .doc p,
  .doc li {
    font-size: 13.5px;
    line-height: 1.95;
  }
}