:root {
  --brand-main: #3f59d9;
  --brand-main-light: #4b6cff;
  --brand-accent: #ffb84b;
  --text-main: #222;
  --text-sub: #555;
  --bg: #f7f8fc;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

header {
  background: #fff;
  border-bottom: 1px solid #e3e6f0;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* ロゴ */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
}

.logo svg {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.logo-text-block {
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}

.logo-text-main {
  font-size: 22px;
  font-weight: 700;
  color: var(--brand-main);
  letter-spacing: 0.04em;
}

.logo-text-ja {
  font-size: 11px;
  color: var(--brand-accent);
  font-weight: 600;
  margin-top: 1px;
}

.logo-text-sub {
  font-size: 10px;
  color: var(--text-sub);
  margin-top: 1px;
}

nav {
  font-size: 13px;
  display: flex;
  gap: 18px;
}

nav a {
  text-decoration: none;
  color: var(--text-sub);
}

nav a:hover { color: var(--brand-main); }

/* メイン */
main { padding: 0 16px 40px; }

.hero {
  max-width: 960px;
  margin: 32px auto 0;
}

.hero-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: 0 10px 30px rgba(40, 60, 120, 0.08);
}

/* 完全無料バッジ */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 5px 14px;
  border-radius: 999px;
  background: #e8f3ff;
  color: #1a73e8;
  font-weight: 600;
  margin-bottom: 14px;
}

.hero-title {
  font-size: 30px;
  margin: 0 0 10px;
  line-height: 1.4;
}

.hero-free {
  font-size: 16px;
  font-weight: 700;
  color: var(--brand-main);
  margin-bottom: 14px;
}

.hero-sub {
  font-size: 14px;
  color: var(--text-sub);
  margin: 0 0 22px;
  line-height: 1.8;
}

.hero-actions {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 12px 22px;
  border-radius: 999px;
  border: none;
  background: var(--brand-main);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(63, 89, 217, 0.35);
  transition: 0.1s ease-out;
}

.btn-primary:hover {
  background: var(--brand-main-light);
  transform: translateY(-1px);
}

.btn-secondary {
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid #d0d4e6;
  background: #fff;
  color: var(--text-sub);
  font-size: 14px;
  cursor: pointer;
  transition: 0.1s ease-out;
}

.btn-secondary:hover {
  background: #f5f6ff;
  border-color: var(--brand-main);
  color: var(--brand-main);
}

/* スマホ */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 16px 12px;
  }

  nav { gap: 14px; font-size: 14px; flex-wrap: wrap; }

  .hero { margin-top: 24px; }

  .hero-card { padding: 24px 18px; }

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

  .hero-free { font-size: 15px; }

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

  .hero-actions { flex-direction: column; }

  .btn-primary, .btn-secondary {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .logo svg { width: 34px; height: 34px; }
  .logo-text-main { font-size: 19px; }
  .logo-text-ja { font-size: 10px; }
  .logo-text-sub { font-size: 9px; }
}

footer {
  background: #fff;
  border-top: 1px solid #e3e6f0;
  margin-top: 40px;
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--brand-main);
}

.footer-copy {
  font-size: 12px;
  color: var(--text-sub);
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-sub);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--brand-main);
}

@media (max-width: 600px) {
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

.btn-login {
  background-color: #ff9800; 
  color: #fff;
  border: none;
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  transition: 0.2s;
}

.btn-login:hover {
  background-color: #e68900;
}

/* 固定CTA（画面下固定） */
.fixed-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  display: flex;
  gap: 8px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
  z-index: 9999;
}

/* ボタン共通 */
.cta-btn {
  flex: 1;
  padding: 12px 0;
  font-size: 16px;
  font-weight: bold;
  border-radius: 8px;
  border: none;
  cursor: pointer;
}

/* 店舗登録ボタン（目立つ色） */
.cta-store {
  background: #ff6b00;
  color: #fff;
}

/* ユーザー登録ボタン（補色で差別化） */
.cta-user {
  background: #007aff;
  color: #fff;
}

/* PCでは固定CTAを非表示（邪魔にならない） */
@media (min-width: 900px) {
  .fixed-cta {
    display: none;
  }
}

.nav-login {
  font-weight: 600;
  color: var(--brand-main);
}

.nav-login:hover {
  color: var(--brand-main-light);
}

a {
  text-decoration: none;
}

.news-section {
  max-width: 960px;
  margin: 40px auto 0;
  padding: 0 16px;
}

.news-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--brand-main);
  margin-bottom: 16px;
}

.news-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.news-list li {
  background: #fff;
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 12px;
  box-shadow: 0 4px 12px rgba(40, 60, 120, 0.06);
  font-size: 14px;
  color: var(--text-main);
  line-height: 1.6;
  cursor: pointer;
  transition: background 0.2s;
}

.news-list li:hover {
  background: #f5f6ff;
}

.news-list .news-body {
  display: none;
  margin-top: 8px;
  color: var(--text-sub);
  font-size: 13px;
}

.news-more {
  text-align: right;
  margin-top: 10px;
}

.news-more .btn-secondary {
  font-size: 13px;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--brand-main);
  color: var(--brand-main);
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.2s;
}

.news-more .btn-secondary:hover {
  background: var(--brand-main);
  color: #fff;
}

/* 追加：セクション共通 */
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--brand-main);
  margin-bottom: 20px;
}

/* 追加：使い方 */
.howto-section {
  max-width: 960px;
  margin: 40px auto 0;
  padding: 0 16px;
}

.howto-steps {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.howto-card {
  flex: 1;
  min-width: 200px;
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(40, 60, 120, 0.06);
}

.step-num {
  font-size: 26px;
  font-weight: 700;
  color: var(--brand-main);
  margin-bottom: 8px;
}

/* 追加：メリット */
.feature-section {
  max-width: 960px;
  margin: 40px auto 0;
  padding: 0 16px;
}

.feature-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.feature-card {
  flex: 1;
  min-width: 200px;
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(40, 60, 120, 0.06);
}

.feature-icon {
  font-size: 32px;
  margin-bottom: 10px;
}

/* 追加：導入事例 */
.voice-section {
  max-width: 960px;
  margin: 40px auto 0;
  padding: 0 16px;
}

.voice-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.voice-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 6px 20px rgba(40, 60, 120, 0.06);
  font-size: 14px;
  line-height: 1.7;
}

.voice-name {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-sub);
}

/* 追加：FAQ */
.faq-section {
  max-width: 960px;
  margin: 40px auto 0;
  padding: 0 16px;
}

.faq-item {
  background: #fff;
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 12px;
  box-shadow: 0 4px 12px rgba(40, 60, 120, 0.06);
  cursor: pointer;
}

.faq-q {
  font-weight: 700;
  color: var(--brand-main);
}

.faq-a {
  display: none;
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-sub);
}

.faq-item.open .faq-a {
  display: block;
}

/* ボタンリンクのテキストを中央揃えにする */
.btn-primary,
.btn-secondary,
.btn-login,
.cta-store,
.cta-user,
.cta-btn {
  display: inline-block;
  text-align: center;
}