/* =========================
   ベーススタイル
========================= */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f6fa;
  color: #333;
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

main {
  padding-bottom: 80px; /* 固定CTAぶんの余白 */
}

/* ラッパー */
.section {
  padding: 60px 16px;
}

.section-gray {
  background: #eef1f6;
}

.section-accent {
  background: linear-gradient(135deg, #1b3d70, #2980b9);
  color: #fff;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: 28px;
  margin-bottom: 16px;
  text-align: center;
  color: #1b3d70;
}

.section-title-white {
  color: #fff;
}

.section-lead {
  text-align: center;
  color: #555;
  margin-bottom: 32px;
}

/* =========================
   ヒーローセクション
========================= */
.hero {
  background: radial-gradient(circle at top, #ffffff, #d9e3f3);
  padding: 40px 16px 40px;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  gap: 32px;
  align-items: center;
  flex-wrap: wrap;
}

.hero-text {
  flex: 1 1 320px;
}

.hero-image {
  flex: 1 1 320px;
  text-align: center;
}

.hero-label {
  display: inline-block;
  font-size: 12px;
  padding: 4px 10px;
  background: #1b3d70;
  color: #fff;
  border-radius: 999px;
  margin-bottom: 10px;
}

.hero h1 {
  font-size: 30px;
  margin: 0 0 10px;
  color: #1b3d70;
}

.hero h1 span {
  font-size: 20px;
  display: block;
}

.hero-lead {
  font-size: 15px;
  color: #444;
  margin-bottom: 16px;
}

.hero-benefits {
  list-style: none;
  padding-left: 0;
  margin: 0 0 20px;
  font-size: 14px;
}

.hero-benefits li::before {
  content: "✓";
  color: #1b3d70;
  margin-right: 6px;
}

.hero-benefits li {
  margin-bottom: 4px;
}

.hero-cta-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ボタン */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
}

.btn-primary {
  background: #1b3d70;
  color: #fff;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  border: 1px solid #1b3d70;
  color: #1b3d70;
  background: #fff;
}

.btn-secondary:hover {
  background: #eaf1fb;
}

.btn-block {
  width: 100%;
  text-align: center;
}

/* ヒーロー画像 */
.hero-image img {
  max-width: 420px;
  margin: 0 auto;
  border-radius: 14px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

/* =========================
   ナビ
========================= */
.nav {
  background: #ffffff;
  border-bottom: 1px solid #e0e4ee;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 16px;
  font-size: 13px;
  justify-content: center;
}

.nav-inner a {
  padding: 4px 10px;
  border-radius: 999px;
  color: #1b3d70;
  border: 1px solid transparent;
}

.nav-inner a:hover {
  background: #eaf1fb;
}

/* =========================
   メリットカード
========================= */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.card {
  background: #ffffff;
  border-radius: 10px;
  padding: 16px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.04);
  font-size: 14px;
}

.card h3 {
  font-size: 16px;
  margin-top: 0;
  color: #1b3d70;
}

/* =========================
   ギャラリー & 動画
========================= */
.gallery-main {
  max-width: 700px;
  margin: 0 auto 16px;
}

.gallery-main img {
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.thumb-list {
  max-width: 700px;
  margin: 0 auto 24px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.thumb-list img {
  flex: 0 0 auto;
  width: 100px;
  height: 80px;
  object-fit: cover;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: 0.2s;
}

.thumb-list img.active,
.thumb-list img:hover {
  border-color: #1b3d70;
  transform: scale(1.03);
}

.video-box {
  max-width: 700px;
  margin: 0 auto;
}

.video-title {
  font-size: 18px;
  margin-bottom: 10px;
  color: #1b3d70;
}

.video-box video {
  width: 100%;
  border-radius: 10px;
  background: #000;
}

/* =========================
   特徴
========================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-item {
  background: #fff;
  border-radius: 10px;
  padding: 18px;
  font-size: 14px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.03);
}

.feature-item h3 {
  margin-top: 0;
  font-size: 16px;
  color: #1b3d70;
}

/* =========================
   仕様
========================= */
.spec-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-start;
}

.spec-table {
  border-collapse: collapse;
  min-width: 280px;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
}

.spec-table th,
.spec-table td {
  padding: 10px 14px;
  border-bottom: 1px solid #e0e4ee;
  font-size: 14px;
}

.spec-table th {
  width: 30%;
  background: #e6edf7;
  text-align: left;
}

.spec-note {
  flex: 1;
  font-size: 13px;
  color: #555;
}

/* =========================
   比較表
========================= */
.table-scroll {
  overflow-x: auto;
}

.compare-table {
  border-collapse: collapse;
  min-width: 600px;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
}

.compare-table th,
.compare-table td {
  padding: 10px 12px;
  border-bottom: 1px solid #e0e4ee;
  font-size: 13px;
}

.compare-table th {
  background: #dbe6f5;
}

/* =========================
   導入事例
========================= */
.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.voice-card {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  font-size: 14px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.03);
}

.voice-tag {
  display: inline-block;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #1b3d70;
  color: #fff;
  margin-bottom: 8px;
}

/* =========================
   FAQ
========================= */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 10px;
  font-size: 14px;
  box-shadow: 0 3px 8px rgba(0,0,0,0.03);
}

.faq-item h3 {
  margin: 0 0 6px;
  font-size: 15px;
  color: #1b3d70;
}

/* =========================
   お問い合わせ
========================= */
.contact-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-start;
}

.contact-text {
  flex: 1 1 320px;
}

.contact-lead {
  font-size: 14px;
  margin-bottom: 16px;
}

.contact-points {
  font-size: 14px;
  padding-left: 18px;
}

.contact-points li {
  margin-bottom: 6px;
}

.contact-box {
  flex: 1 1 320px;
  background: rgba(255,255,255,0.96);
  border-radius: 12px;
  padding: 18px;
  color: #333;
}

.contact-box h3 {
  margin-top: 0;
  font-size: 17px;
  color: #1b3d70;
}

.contact-box form {
  font-size: 14px;
}

.contact-box label {
  display: block;
  margin-bottom: 10px;
}

.contact-box input,
.contact-box textarea {
  width: 100%;
  padding: 8px;
  margin-top: 4px;
  border-radius: 6px;
  border: 1px solid #c5cede;
  font-family: inherit;
  font-size: 14px;
}

.contact-box textarea {
  resize: vertical;
}

.contact-note {
  font-size: 11px;
  color: #666;
  margin-top: 6px;
}

/* =========================
   フッター
========================= */
.footer {
  background: #111827;
  color: #e5e7eb;
  padding: 24px 16px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-company h3 {
  margin-top: 0;
  font-size: 16px;
}

.footer-links {
  margin-top: 10px;
  font-size: 13px;
}

.footer-links a {
  color: #93c5fd;
}

.footer-copy {
  margin-top: 10px;
  font-size: 11px;
  color: #9ca3af;
}

/* =========================
   スマホ固定CTA
========================= */
.cta-fixed {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: #1b3d70;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  font-size: 13px;
  z-index: 20;
}

.cta-fixed-text {
  font-weight: 600;
}

.cta-fixed-btn {
  background: #ffcc00;
  color: #1b3d70;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
}

/* PCでは固定CTAを非表示 */
@media (min-width: 901px) {
  .cta-fixed {
    display: none;
  }
}

/* =========================
   レスポンシブ対応
========================= */
@media (max-width: 900px) {
  .hero-inner {
    flex-direction: column;
    text-align: left;
  }

  .hero {
    padding-top: 24px;
  }

  .hero h1 {
    font-size: 24px;
  }

  .hero h1 span {
    font-size: 16px;
  }

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

  .features-grid {
    grid-template-columns: 1fr;
  }

  .voice-grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-inner {
    flex-direction: column;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 40px 12px;
  }

  .section-title {
    font-size: 22px;
  }

  .section-lead {
    font-size: 13px;
  }

  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .voice-grid {
    grid-template-columns: 1fr;
  }

  .thumb-list img {
    width: 80px;
    height: 64px;
  }

  .nav-inner {
    font-size: 12px;
  }

  .hero-benefits {
    font-size: 13px;
  }

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