/* Web Culture Service 共通スタイル */
:root {
  --navy: #14283f;
  --navy-deep: #0d1b2c;
  --blue: #2f6fb5;
  --blue-light: #e9f1f9;
  --accent: #d97b29;
  --accent-dark: #b96317;
  --text: #22303e;
  --text-weak: #5a6b7c;
  --line: #dde4ea;
  --bg-soft: #f5f8fa;
  --radius: 10px;
  --maxw: 1080px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--text);
  line-height: 1.9;
  font-size: 16px;
  background: #fff;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ヘッダー */
.site-header {
  border-bottom: 1px solid var(--line);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.brand { text-decoration: none; color: var(--navy); line-height: 1.3; }
.brand .brand-name { font-size: 20px; font-weight: 700; letter-spacing: .02em; }
.brand .brand-logo { width: auto; height: 38px; display: block; }
.brand .brand-sub { font-size: 11px; color: var(--text-weak); margin-top: 2px; padding-left: 4px; }
.gnav ul { display: flex; gap: 22px; list-style: none; flex-wrap: wrap; }
.gnav a {
  text-decoration: none;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
}
.gnav a:hover { color: var(--blue); }
.gnav .nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 700;
}
.gnav .nav-cta:hover { background: var(--accent-dark); color: #fff; }

/* ヒーロー */
.hero {
  background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 55%, #1d3a5c 100%);
  color: #fff;
  padding: 72px 0 64px;
}
.hero .eyebrow {
  display: inline-block;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 999px;
  font-size: 13px;
  padding: 4px 16px;
  margin-bottom: 22px;
  letter-spacing: .05em;
}
.hero h1 {
  font-size: clamp(28px, 4.6vw, 44px);
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: .02em;
}
.hero .lead {
  margin-top: 22px;
  max-width: 720px;
  font-size: 16px;
  color: rgba(255,255,255,.88);
}
.hero .hero-actions { margin-top: 32px; display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 999px;
  padding: 14px 34px;
  font-weight: 700;
  font-size: 16px;
  transition: opacity .2s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost { border: 1.5px solid rgba(255,255,255,.7); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.hero .badges { margin-top: 36px; display: flex; gap: 12px 26px; flex-wrap: wrap; font-size: 13px; color: rgba(255,255,255,.75); }
.hero .badges span::before { content: "✓ "; color: #8fc1f0; }

/* セクション共通 */
section { padding: 72px 0; }
section.alt { background: var(--bg-soft); }
.sec-label { color: var(--blue); font-size: 13px; font-weight: 700; letter-spacing: .12em; }
h2 {
  font-size: clamp(24px, 3.4vw, 32px);
  color: var(--navy);
  line-height: 1.5;
  margin: 6px 0 18px;
}
.sec-lead { max-width: 760px; color: var(--text-weak); margin-bottom: 40px; }

/* こんな方へ */
.trouble-list { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.trouble-list li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  font-weight: 500;
}
.trouble-list li::before { content: "・"; color: var(--accent); font-weight: 700; }
.trouble-answer {
  margin-top: 32px;
  text-align: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
}

/* 3事業カード */
.service-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.service-card {
  background: #fff;
  border: 1px solid var(--line);
  border-top: 4px solid var(--blue);
  border-radius: var(--radius);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
}
.service-card .num { font-size: 13px; color: var(--blue); font-weight: 700; letter-spacing: .1em; }
.service-card h3 { font-size: 21px; color: var(--navy); margin: 8px 0 12px; line-height: 1.5; }
.service-card p { font-size: 15px; color: var(--text); flex: 1; }
.service-card ul { list-style: none; margin: 14px 0 20px; font-size: 14px; color: var(--text-weak); }
.service-card ul li::before { content: "─ "; color: var(--blue); }
.service-card .more { font-weight: 700; font-size: 15px; text-decoration: none; }
.service-card .more::after { content: " →"; }

/* 選ばれる理由 */
.reason-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.reason {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}
.reason .r-num { font-size: 26px; font-weight: 700; color: var(--blue); font-family: Georgia, serif; }
.reason h3 { font-size: 18px; color: var(--navy); margin: 6px 0 10px; line-height: 1.6; }
.reason p { font-size: 14.5px; color: var(--text-weak); }

/* 実績 */
.result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; }
.result-card {
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 26px 22px;
  text-align: center;
}
.result-card .r-value { font-size: 30px; font-weight: 700; color: #ffc36b; line-height: 1.3; }
.result-card .r-desc { font-size: 13.5px; margin-top: 10px; color: rgba(255,255,255,.85); }
.result-note { margin-top: 18px; font-size: 12.5px; color: var(--text-weak); }
.center-more { text-align: center; margin-top: 36px; }

/* 代表あいさつ */
.founder { display: flex; gap: 40px; align-items: flex-start; flex-wrap: wrap; }
.founder .photo { width: 240px; flex-shrink: 0; }
.founder .photo img { border-radius: var(--radius); }
.founder .photo figcaption { font-size: 13px; color: var(--text-weak); margin-top: 10px; text-align: center; }
.founder .founder-text { flex: 1; min-width: 300px; }
.founder blockquote {
  font-size: 21px;
  font-weight: 700;
  color: var(--navy);
  border-left: 4px solid var(--accent);
  padding-left: 18px;
  margin-bottom: 18px;
  line-height: 1.7;
}
.founder p { margin-bottom: 14px; font-size: 15.5px; }

/* お知らせ */
.news-list { list-style: none; border-top: 1px solid var(--line); }
.news-list li { border-bottom: 1px solid var(--line); padding: 16px 4px; display: flex; gap: 24px; flex-wrap: wrap; }
.news-list time { color: var(--text-weak); font-size: 14px; flex-shrink: 0; }
.news-list a { text-decoration: none; }

/* CTAセクション */
.cta-sec {
  background: linear-gradient(160deg, var(--navy) 0%, #1d3a5c 100%);
  color: #fff;
  text-align: center;
}
.cta-sec h2 { color: #fff; }
.cta-sec p { max-width: 640px; margin: 0 auto 30px; color: rgba(255,255,255,.85); }

/* フッター */
.site-footer { background: var(--navy-deep); color: rgba(255,255,255,.8); padding: 56px 0 32px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 36px; margin-bottom: 40px; }
.site-footer h3 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: rgba(255,255,255,.8); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-company p { margin-bottom: 6px; }
.copyright { border-top: 1px solid rgba(255,255,255,.15); padding-top: 22px; text-align: center; font-size: 12.5px; color: rgba(255,255,255,.55); }

/* ===== 下層ページ共通 ===== */
.page-hero {
  background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 70%);
  color: #fff;
  padding: 48px 0 42px;
}
.page-hero .breadcrumb { font-size: 12.5px; color: rgba(255,255,255,.65); margin-bottom: 14px; }
.page-hero .breadcrumb a { color: rgba(255,255,255,.75); text-decoration: none; }
.page-hero h1 { font-size: clamp(26px, 4vw, 36px); line-height: 1.5; }
.page-hero .page-lead { margin-top: 14px; max-width: 760px; color: rgba(255,255,255,.85); font-size: 15.5px; }

/* 定義文ボックス（LLMO: ページ冒頭の1文回答） */
.definition {
  background: var(--blue-light);
  border-left: 4px solid var(--blue);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 22px 26px;
  font-size: 16.5px;
  font-weight: 500;
  max-width: 860px;
}

/* 汎用テーブル */
.info-table { width: 100%; border-collapse: collapse; background: #fff; }
.info-table th, .info-table td { border: 1px solid var(--line); padding: 14px 18px; text-align: left; vertical-align: top; font-size: 15px; }
.info-table th { background: var(--bg-soft); color: var(--navy); width: 180px; font-weight: 700; }
.table-scroll { overflow-x: auto; }

/* ステップ（初期設定の流れ等） */
.step-list { list-style: none; counter-reset: step; max-width: 860px; }
.step-list li {
  counter-increment: step;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px 20px 66px;
  margin-bottom: 14px;
  position: relative;
}
.step-list li::before {
  content: counter(step);
  position: absolute;
  left: 20px; top: 20px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.step-list h3 { font-size: 16.5px; color: var(--navy); margin-bottom: 6px; }
.step-list p { font-size: 14.5px; color: var(--text-weak); }

/* 料金カード */
.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; align-items: stretch; }
.price-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; display: flex; flex-direction: column; }
.price-card.featured { border: 2px solid var(--accent); position: relative; }
.price-card .plan-tag { position: absolute; top: -14px; left: 24px; background: var(--accent); color: #fff; font-size: 12.5px; font-weight: 700; border-radius: 999px; padding: 3px 14px; }
.price-card h3 { font-size: 19px; color: var(--navy); margin-bottom: 16px; line-height: 1.6; }
.price-row { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px dashed var(--line); padding: 10px 2px; }
.price-row .p-label { font-size: 14px; color: var(--text-weak); }
.price-row .p-value { font-size: 24px; font-weight: 700; color: var(--navy); }
.price-row .p-value small { font-size: 13px; font-weight: 500; color: var(--text-weak); }
.price-row .p-was { font-size: 12.5px; color: var(--text-weak); text-decoration: line-through; margin-right: 8px; }
.price-note { font-size: 13px; color: var(--text-weak); margin-top: 14px; }
.price-card ul.plan-includes { list-style: none; margin-top: 16px; font-size: 14.5px; flex: 1; }
.price-card ul.plan-includes li { padding: 5px 0; }
.price-card ul.plan-includes li::before { content: "✓ "; color: var(--blue); font-weight: 700; }

/* 事例カード */
.case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.case-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; }
.case-card .case-tag { font-size: 12px; color: #fff; background: var(--blue); border-radius: 4px; padding: 2px 10px; align-self: flex-start; margin-bottom: 12px; }
.case-card h3 { font-size: 17.5px; color: var(--navy); line-height: 1.6; margin-bottom: 10px; }
.case-card .case-result { font-size: 22px; font-weight: 700; color: var(--accent-dark); margin-bottom: 10px; line-height: 1.5; }
.case-card p { font-size: 14.5px; color: var(--text-weak); flex: 1; }
.case-card .case-client { font-size: 13.5px; color: var(--text); margin-top: 14px; font-weight: 500; }

/* FAQ */
.faq-list { max-width: 860px; }
.faq-list details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; padding: 0; }
.faq-list summary { cursor: pointer; font-weight: 700; color: var(--navy); padding: 18px 22px; font-size: 15.5px; list-style: none; position: relative; padding-right: 46px; }
.faq-list summary::before { content: "Q. "; color: var(--blue); }
.faq-list summary::after { content: "＋"; position: absolute; right: 20px; top: 16px; color: var(--blue); font-size: 18px; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list .faq-a { padding: 0 22px 18px; font-size: 15px; color: var(--text); }
.faq-list .faq-a::before { content: "A. "; color: var(--accent-dark); font-weight: 700; }

/* 本文プローズ */
.prose { max-width: 860px; }
.prose h3 { font-size: 19px; color: var(--navy); margin: 34px 0 12px; padding-left: 12px; border-left: 4px solid var(--blue); line-height: 1.6; }
.prose p { margin-bottom: 16px; }
.prose ul { margin: 0 0 16px 1.4em; }
.prose ul li { margin-bottom: 6px; }

/* 沿革 */
.history-list { list-style: none; max-width: 860px; }
.history-list li { display: flex; gap: 22px; padding: 12px 4px; border-bottom: 1px solid var(--line); font-size: 15px; }
.history-list .h-year { flex-shrink: 0; width: 110px; font-weight: 700; color: var(--blue); }

/* スマホ調整 */
@media (max-width: 640px) {
  section { padding: 52px 0; }
  .hero { padding: 52px 0 48px; }
  .gnav ul { gap: 14px; }
  .founder .photo { width: 180px; margin: 0 auto; }
  .info-table th { width: 110px; }
  .history-list li { gap: 12px; }
}