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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  color: #2a3040;
  line-height: 1.85;
  background: #fff;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 72px 0;
}

.section-label {
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: #3f6b9e;
  font-weight: bold;
  text-transform: uppercase;
  margin-bottom: 8px;
}

h2 {
  font-size: 28px;
  text-align: center;
  margin-bottom: 20px;
  color: #1c2940;
}

h3 {
  font-size: 17px;
  margin-bottom: 8px;
  color: #1c2940;
}

.section-lead {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
  font-size: 15px;
  color: #4a5468;
}

.center {
  text-align: center;
}

/* ---- ボタン ---- */
.btn-main,
.btn-sub {
  display: inline-block;
  padding: 15px 36px;
  border-radius: 6px;
  font-weight: bold;
  text-decoration: none;
  text-align: center;
  transition: opacity 0.2s, transform 0.2s;
}

.btn-main:hover,
.btn-sub:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}

.btn-main {
  background: #1c4e80;
  color: #fff;
}

.btn-sub {
  background: #fff;
  color: #1c4e80;
  border: 2px solid #1c4e80;
}

/* ---- 追従ヘッダー ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid #e3e7ee;
  backdrop-filter: blur(4px);
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.logo {
  font-size: 16px;
  font-weight: bold;
  letter-spacing: 0.08em;
  color: #1c2940;
}

.global-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.global-nav a {
  font-size: 14px;
  color: #2a3040;
  text-decoration: none;
}

.global-nav a:hover {
  color: #1c4e80;
}

.nav-cta {
  background: #1c4e80;
  color: #fff !important;
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: bold;
}

/* ---- ヒーロー ---- */
.hero {
  background: linear-gradient(150deg, #122948 0%, #1c4e80 70%, #2e6da4 100%);
  color: #fff;
  padding: 80px 0;
}

.hero-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
  text-align: center;
}

.hero .tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  padding: 6px 18px;
  font-size: 13px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 32px;
  line-height: 1.55;
  margin-bottom: 20px;
}

.hero .lead {
  font-size: 15px;
  margin-bottom: 32px;
  opacity: 0.95;
}

.hero-stats {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-stats li {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  padding: 14px 20px;
  min-width: 180px;
}

.hero-stats strong {
  display: block;
  font-size: 20px;
  margin-bottom: 2px;
}

.hero-stats span {
  font-size: 12px;
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-buttons .btn-main {
  background: #e8833a; /* 紺背景の中で目立つオレンジ */
}

.hero-buttons .btn-sub {
  background: transparent;
  color: #fff;
  border-color: #fff;
}

/* ---- カード共通 ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: #fff;
  border: 1px solid #e3e7ee;
  border-radius: 12px;
  padding: 28px 22px;
  box-shadow: 0 2px 10px rgba(28, 41, 64, 0.06);
}

.card-icon {
  font-size: 30px;
  display: block;
  margin-bottom: 10px;
}

.card p {
  font-size: 14px;
}

/* ---- 課題 ---- */
.issues {
  background: #f4f7fb;
}

/* ---- Before / After ---- */
.ba-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.ba-card {
  border-radius: 12px;
  padding: 28px 24px;
}

.ba-card.before {
  background: #f1f3f6;
  border: 1px solid #dce1e8;
}

.ba-card.after {
  background: #eef5fd;
  border: 2px solid #1c4e80;
}

.ba-label {
  display: inline-block;
  font-size: 12px;
  font-weight: bold;
  border-radius: 4px;
  padding: 3px 12px;
  margin-bottom: 12px;
}

.before .ba-label {
  background: #8b95a5;
  color: #fff;
}

.after .ba-label {
  background: #1c4e80;
  color: #fff;
}

.ba-card p {
  font-size: 14px;
}

/* ---- 成長グラフ ---- */
.growth-box {
  background: #fff;
  border: 1px solid #e3e7ee;
  border-radius: 12px;
  padding: 32px 28px;
  text-align: center;
}

.growth-box > p {
  font-size: 14px;
  max-width: 560px;
  margin: 0 auto 28px;
}

.growth-chart {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 32px;
  height: 200px;
  margin-bottom: 20px;
}

.growth-chart .bar {
  width: 90px;
  background: linear-gradient(to top, #1c4e80, #2e6da4);
  border-radius: 8px 8px 0 0;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.growth-chart .bar.tall {
  background: linear-gradient(to top, #e8833a, #f0a05f);
}

.growth-chart .bar span {
  position: absolute;
  bottom: -52px;
  font-size: 12px;
  font-weight: bold;
  color: #2a3040;
  white-space: nowrap;
  line-height: 1.4;
}

.growth-note {
  font-size: 13px;
  color: #6a7488;
  margin-top: 48px;
}

/* ---- サービス ---- */
.service {
  background: #f4f7fb;
}

.step-label {
  display: inline-block;
  background: #1c4e80;
  color: #fff;
  font-size: 12px;
  font-weight: bold;
  border-radius: 4px;
  padding: 3px 12px;
  margin-bottom: 12px;
}

.service-card ul {
  margin-top: 14px;
  padding-left: 0;
  list-style: none;
}

.service-card ul li {
  font-size: 13px;
  padding: 6px 0 6px 22px;
  position: relative;
  border-top: 1px dashed #e3e7ee;
}

.service-card ul li::before {
  content: "✓";
  position: absolute;
  left: 4px;
  color: #1c4e80;
  font-weight: bold;
}

/* ---- 信頼の証拠 ---- */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.proof-card {
  background: #fff;
  border: 1px solid #e3e7ee;
  border-radius: 12px;
  padding: 26px 18px;
  text-align: center;
}

.proof-card strong {
  display: block;
  font-size: 30px;
  color: #1c4e80;
  margin-bottom: 6px;
}

.proof-card p {
  font-size: 13px;
}

/* ---- ホワイトペーパー ---- */
.whitepaper {
  background: #f4f7fb;
}

.wp-list {
  list-style: none;
  max-width: 480px;
  margin: 0 auto 32px;
  display: grid;
  gap: 12px;
}

.wp-list li {
  background: #fff;
  border: 1px solid #e3e7ee;
  border-radius: 8px;
  padding: 14px 18px 14px 44px;
  position: relative;
  font-size: 14px;
}

.wp-list li::before {
  content: "📄";
  position: absolute;
  left: 14px;
}

/* ---- LINE相談ボックス ---- */
.contact-line-box {
  max-width: 520px;
  margin: 0 auto;
  background: #f4f7fb;
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
}

.contact-line-text {
  font-size: 15px;
  margin-bottom: 24px;
}

.btn-line {
  display: inline-block;
  background: #06C755; /* LINE公式グリーン */
  color: #fff;
  font-weight: bold;
  font-size: 17px;
  text-decoration: none;
  text-align: center;
  padding: 16px 48px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(6, 199, 85, 0.35);
  transition: opacity 0.2s, transform 0.2s;
}

.btn-line:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}

.form-note {
  font-size: 12px;
  color: #6a7488;
  margin-top: 14px;
  text-align: center;
}

/* ---- FAQ ---- */
.faq-item {
  background: #fff;
  border: 1px solid #e3e7ee;
  border-radius: 10px;
  margin-bottom: 12px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.faq-item summary {
  cursor: pointer;
  font-weight: bold;
  padding: 16px 44px 16px 20px;
  list-style: none;
  position: relative;
  font-size: 15px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::before {
  content: "Q";
  color: #1c4e80;
  font-weight: bold;
  margin-right: 10px;
}

.faq-item summary::after {
  content: "＋";
  position: absolute;
  right: 18px;
  color: #1c4e80;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  color: #4a5468;
}

/* ---- フッター ---- */
.site-footer {
  background: #122948;
  color: #fff;
  text-align: center;
  padding: 48px 20px 32px;
}

.footer-logo {
  font-size: 16px;
  font-weight: bold;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.footer-text {
  font-size: 13px;
  opacity: 0.85;
  max-width: 480px;
  margin: 0 auto 24px;
}

.footer-btn {
  background: transparent;
  color: #fff;
  border-color: #fff;
  margin-bottom: 24px;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.footer-nav a {
  color: #fff;
  font-size: 13px;
  opacity: 0.8;
  text-decoration: none;
}

.footer-nav a:hover {
  opacity: 1;
}

/* ---- スマホ対応 ---- */
@media (max-width: 768px) {
  .section {
    padding: 52px 0;
  }

  h2 {
    font-size: 22px;
  }

  .hero {
    padding: 56px 0;
  }

  .hero h1 {
    font-size: 25px;
  }

  .hero-stats li {
    min-width: 100%;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .card-grid,
  .ba-grid {
    grid-template-columns: 1fr;
  }

  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .global-nav {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
  }

  .global-nav a {
    font-size: 12px;
  }

  .growth-chart {
    gap: 18px;
  }

  .growth-chart .bar {
    width: 70px;
  }

  .btn-line {
    width: 100%;
    padding: 16px 20px;
  }
}