@charset "UTF-8";

/* modern.css — 2026年リニューアル用スタイル（トップページ）
   旧import.css（fix/main_style/print）とは独立して動作します */

:root {
  --accent: #b81e63;          /* サイト伝統のピンクを少し深く（白地でのコントラスト確保） */
  --accent-dark: #8f1249;
  --ink: #23303d;             /* 見出し・本文の墨色（真っ黒より柔らかい） */
  --text: #3a4650;
  --muted: #78838d;
  --panel: #eef4f9;           /* 旧blue_boxの水色を継承した淡いパネル */
  --panel-line: #d7e4ef;
  --card-line: #e6ecf1;
  --radius: 12px;
  --shadow-sm: 0 1px 3px rgba(35, 48, 61, 0.06), 0 4px 14px rgba(35, 48, 61, 0.06);
  --shadow-md: 0 4px 10px rgba(35, 48, 61, 0.08), 0 12px 28px rgba(35, 48, 61, 0.10);
  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --font-display: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif; /* 見出し用：ロゴに合わせた骨太ゴシック */
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.02em;
  background: #fff;
  -webkit-text-size-adjust: 100%;
}
img { max-width: 100%; height: auto; }
a { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.container { max-width: 920px; margin: 0 auto; padding: 0 20px; }

/* ===== グローバルナビ ===== */
.g_nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--card-line);
}
.g_nav .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 10px;
  padding-bottom: 10px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
}
.brand span {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-right: 10px;
}
.g_nav .navs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
}
.g_nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
}
.g_nav ul a {
  display: block;
  padding: 8px 14px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}
.g_nav ul a:hover { background: var(--panel); color: var(--accent); }
.g_nav ul a.current { background: var(--accent); color: #fff; }
.g_nav ul.sub a {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--muted);
  padding: 6px 8px;
}
.g_nav ul.sub a:hover {
  background: transparent;
  color: var(--accent);
  text-decoration: underline;
}

/* ===== ヒーロー（元デザインの帯＋中央配置を踏襲） ===== */
.hero { padding: 0 0 8px; }
.hero-band {
  background: #dceaf4 url(../images/bg_main_visual.gif) repeat-x left top;
  background-size: auto 100%;
}
.hero-band img {
  display: block;
  margin: 0 auto;
  width: 679px;
  max-width: 100%;
  height: auto;
}
.hero .lead {
  max-width: 680px;
  margin: 20px auto 0;
  padding: 0 20px;
  font-size: 14.5px;
  color: var(--muted);
}
.hero .lead strong { color: var(--text); font-weight: 500; }

/* ===== セクション共通 ===== */
section { padding: 56px 0 64px; }
section.panel {
  background: var(--panel);
  border-top: 1px solid var(--panel-line);
  border-bottom: 1px solid var(--panel-line);
}
.eyebrow {
  margin: 0 0 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
}
.section-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 25px;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.section-lead { margin: 0 0 32px; max-width: 40em; }

/* ===== プロモーション5分野 ===== */
.prom-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.prom-card {
  background: #fff;
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 18px 12px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.prom-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.prom-card h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0;
  line-height: 1.4;
  color: var(--ink);
  text-wrap: balance;
}
.prom-card h3::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  margin: 8px auto 0;
  background: var(--accent);
  border-radius: 2px;
}
.prom-card p {
  margin: 10px 0 14px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}
.prom-card a.thumb { display: block; margin: auto auto 16px; }
.prom-card a.thumb img { border-radius: 8px; display: block; }
.btn {
  display: inline-block;
  padding: 7px 18px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  color: var(--accent);
  background: #fff;
  border: 1px solid var(--accent);
  border-radius: 999px;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.btn::after {
  content: "→";
  margin-left: 6px;
  display: inline-block;
  transition: transform 0.2s;
}
.btn:hover { background: var(--accent); color: #fff; }
.btn:hover::after { transform: translateX(3px); }
.btn.solid { background: var(--accent); color: #fff; }
.btn.solid:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.prom-card .btn { margin-top: auto; align-self: center; }

/* ===== TOPICS ===== */
.topics-card {
  background: #fff;
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 30px 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: flex-start;
}
.topics-card .text { flex: 1 1 340px; min-width: 0; }
.topics-card .text h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.06em;
  color: var(--ink);
}
.topics-card .text p { margin: 0 0 1em; }
.topics-card .catalog {
  flex: 0 0 auto;
  max-width: 240px;
  margin: 0 auto;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}
.topics-card .catalog img {
  display: block;
  max-width: 170px; /* トリミング後の表紙がボタン幅と揃う目安 */
  height: auto;
  margin: 0 auto 12px;
}
.topics-card .catalog .btn {
  margin: 0 0 4px;
}

/* ===== 通販事業（人体百科のみ） ===== */
.shop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.shop-card {
  background: #fff;
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 30px 32px;
  display: flex;
  gap: 32px;
  align-items: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.shop-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.shop-card .info { flex: 1 1 auto; min-width: 0; }
.shop-card .info p { margin: 12px 0 16px; font-size: 14px; }
.shop-card .photo { flex: 0 0 118px; }
.shop-card .photo img { border-radius: 8px; display: block; }

/* ===== フッター ===== */
footer {
  margin-top: 24px;
  background: var(--ink);
  color: #cfd8df;
}
footer .container { padding-top: 34px; padding-bottom: 30px; }
.footer-company {
  font-size: 13px;
  margin: 0 0 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}
.footer-company strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.05em;
  color: #fff;
  margin-bottom: 4px;
}
footer ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  margin: 0 0 14px;
  padding: 0;
  font-size: 13px;
}
footer ul a { color: #cfd8df; text-decoration: none; }
footer ul a:hover { color: #fff; text-decoration: underline; }
footer address { font-style: normal; font-size: 11.5px; color: #8b98a3; }

/* ===== レスポンシブ・アクセシビリティ ===== */
@media (max-width: 880px) {
  .prom-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 760px) {
  section { padding: 40px 0 48px; }
  .hero .lead { margin-top: 16px; }
  .prom-grid { grid-template-columns: repeat(2, 1fr); }
  .topics-card { padding: 22px 20px; }
  .shop-card { flex-wrap: wrap; gap: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
  .prom-card:hover, .shop-card:hover { transform: none; }
}