/* ============================================
   おみせAIサポート 共通スタイル
   トーン: 青×白・明朝体・余白たっぷり(上品で軽やか)
   アクセント: 購入ボタンのみオレンジ #e8630a
   ============================================ */

:root {
  --blue: #3b5a86;
  --blue-deep: #2c4463;
  --blue-accent: #4a80b8;
  --blue-pale: #e8f1f8;
  --blue-mist: #f6f9fc;
  --orange: #e8630a;
  --orange-dark: #c25105;
  --white: #ffffff;
  --ink: #2e3e54;
  --muted: #7d8ca0;
  --line: #dbe6f0;
  --radius: 6px;
  --shadow: 0 6px 24px rgba(59, 90, 134, 0.08);
  --serif: "Shippori Mincho", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "MS PMincho", serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--serif);
  color: var(--ink);
  background: var(--blue-mist);
  line-height: 2.1;
  font-size: 16px;
  letter-spacing: 0.06em;
  -webkit-text-size-adjust: 100%;
}

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

a {
  color: var(--blue-accent);
}

h1, h2, h3 {
  font-weight: 600;
  letter-spacing: 0.1em;
}

/* ---------- ヘッダー ---------- */

.site-header {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(6px);
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.logo {
  font-size: 19px;
  font-weight: 600;
  color: var(--blue-deep);
  text-decoration: none;
  letter-spacing: 0.14em;
}

.logo span {
  color: var(--blue-accent);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 26px;
}

.nav a {
  color: var(--blue-deep);
  text-decoration: none;
  font-size: 13.5px;
  letter-spacing: 0.12em;
  padding: 4px 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav a:hover,
.nav a.current {
  color: var(--blue-accent);
  border-bottom: 1px solid var(--blue-accent);
}

/* ---------- 共通レイアウト ---------- */

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

.section-alt {
  background: var(--white);
}

.section-title {
  text-align: center;
  font-size: 26px;
  margin-bottom: 18px;
  line-height: 1.9;
  color: var(--blue-deep);
  position: relative;
  padding-bottom: 22px;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 1px;
  background: var(--blue-accent);
}

.section-title .accent {
  color: var(--blue-accent);
}

.section-lead {
  text-align: center;
  color: var(--muted);
  margin-bottom: 56px;
  font-size: 14.5px;
  letter-spacing: 0.1em;
}

/* ---------- ボタン ---------- */

.btn {
  display: inline-block;
  background: var(--orange);
  color: var(--white);
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 15.5px;
  letter-spacing: 0.14em;
  padding: 17px 52px;
  border-radius: var(--radius);
  box-shadow: 0 6px 20px rgba(232, 99, 10, 0.28);
  transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
  text-align: center;
}

.btn::after {
  content: "→";
  margin-left: 14px;
  font-weight: 400;
}

.btn:hover {
  background: var(--orange-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(232, 99, 10, 0.34);
}

.btn-note {
  display: block;
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 14px;
  letter-spacing: 0.08em;
}

.btn-ghost {
  display: inline-block;
  color: var(--blue);
  border: 1px solid var(--blue);
  background: transparent;
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.14em;
  padding: 13px 40px;
  border-radius: var(--radius);
  transition: background 0.25s, color 0.25s;
}

.btn-ghost::after {
  content: "→";
  margin-left: 12px;
}

.btn-ghost:hover {
  background: var(--blue);
  color: var(--white);
}

.cta-center {
  text-align: center;
  margin-top: 48px;
}

/* ---------- ヒーロー(トップ) ---------- */

.hero {
  background: linear-gradient(175deg, #fdfeff 0%, #e9f2fa 34%, #cfe3f2 68%, #a9cce6 100%);
  padding: 110px 0 150px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 90px;
  background: url('data:image/svg+xml;charset=utf-8,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 100" preserveAspectRatio="none"%3E%3Cpath d="M0,64 C260,104 520,8 760,34 C1000,60 1240,24 1440,54 L1440,100 L0,100 Z" fill="%23f6f9fc"/%3E%3C/svg%3E') no-repeat bottom / 100% 100%;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.85);
  color: var(--blue);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.22em;
  padding: 8px 30px;
  border: 1px solid rgba(59, 90, 134, 0.35);
  border-radius: 999px;
  margin-bottom: 34px;
}

.hero h1 {
  font-size: 38px;
  line-height: 2;
  margin-bottom: 22px;
  color: var(--blue-deep);
  font-weight: 600;
  letter-spacing: 0.12em;
}

.hero h1 .accent {
  color: var(--blue-accent);
}

.hero-lead {
  font-size: 16px;
  color: var(--blue);
  margin-bottom: 44px;
  letter-spacing: 0.14em;
}

.hero-image {
  max-width: 560px;
  margin: 72px auto 0;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

/* ---------- カード ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 30px;
  transition: box-shadow 0.3s, transform 0.3s;
}

.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.section-alt .card {
  background: var(--blue-mist);
}

.card h3 {
  font-size: 16.5px;
  margin-bottom: 14px;
  color: var(--blue-deep);
  line-height: 1.9;
}

.card p {
  font-size: 14px;
  color: var(--ink);
  line-height: 2.1;
}

.card .emoji {
  font-size: 30px;
  margin-bottom: 16px;
}

/* ---------- チェックリスト ---------- */

.check-list {
  list-style: none;
  max-width: 680px;
  margin: 0 auto;
}

.check-list li {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 24px 18px 56px;
  margin-bottom: 14px;
  position: relative;
  font-size: 14.5px;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--blue-accent);
  border: 1px solid var(--blue-accent);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- ステップ ---------- */

.steps {
  list-style: none;
  max-width: 680px;
  margin: 0 auto;
  counter-reset: step;
}

.steps li {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 30px 28px 100px;
  margin-bottom: 18px;
  position: relative;
  counter-increment: step;
}

.steps li::before {
  content: "0" counter(step);
  position: absolute;
  left: 28px;
  top: 26px;
  color: var(--blue-accent);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.steps li::after {
  content: "";
  position: absolute;
  left: 30px;
  top: 68px;
  width: 34px;
  height: 1px;
  background: var(--blue-accent);
  opacity: 0.5;
}

.steps h3 {
  font-size: 16px;
  margin-bottom: 6px;
  color: var(--blue-deep);
  line-height: 1.9;
}

.steps p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 2;
}

/* ---------- 料金 ---------- */

.price-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 30px;
  align-items: stretch;
}

.price-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 44px 34px;
  text-align: center;
  display: flex;
  flex-direction: column;
}

.price-card.featured {
  border: 1px solid var(--blue-accent);
  box-shadow: var(--shadow);
}

.price-label {
  display: inline-block;
  background: var(--blue-pale);
  color: var(--blue);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  padding: 5px 22px;
  border-radius: 999px;
  margin: 0 auto 20px;
}

.price-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: var(--blue-deep);
}

.price-amount {
  font-size: 34px;
  font-weight: 600;
  color: var(--blue);
  margin: 10px 0 6px;
  letter-spacing: 0.04em;
}

.price-amount small {
  font-size: 13.5px;
  color: var(--muted);
  font-weight: 400;
}

.price-card ul {
  list-style: none;
  text-align: left;
  margin: 24px 0;
  flex: 1;
}

.price-card ul li {
  padding: 10px 0 10px 28px;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
  position: relative;
}

.price-card ul li::before {
  content: "✓";
  color: var(--blue-accent);
  position: absolute;
  left: 4px;
}

.price-card.soon {
  opacity: 0.72;
}

.soon-badge {
  display: inline-block;
  background: #eef1f5;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  padding: 5px 22px;
  border-radius: 999px;
  margin: 0 auto 20px;
}

/* ---------- テーブル ---------- */

.table-wrap {
  overflow-x: auto;
}

.option-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 14.5px;
  min-width: 480px;
}

.option-table th,
.option-table td {
  padding: 16px 22px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.option-table th {
  background: var(--blue-pale);
  color: var(--blue-deep);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.option-table td:last-child {
  font-weight: 600;
  color: var(--blue);
  white-space: nowrap;
}

/* ---------- FAQ ---------- */

.faq {
  max-width: 740px;
  margin: 0 auto;
}

.faq details {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
}

.faq summary {
  padding: 20px 24px;
  font-weight: 600;
  cursor: pointer;
  font-size: 14.5px;
  list-style: none;
  position: relative;
  padding-right: 52px;
  color: var(--blue-deep);
}

.faq summary::before {
  content: "Q";
  color: var(--blue-accent);
  font-weight: 600;
  margin-right: 14px;
}

.faq summary::after {
  content: "+";
  position: absolute;
  right: 24px;
  top: 18px;
  color: var(--blue-accent);
  font-size: 20px;
  font-weight: 400;
}

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

.faq .faq-answer {
  padding: 0 24px 20px;
  font-size: 14.5px;
  color: var(--ink);
}

.faq .faq-answer::before {
  content: "A. ";
  color: var(--blue-accent);
  font-weight: 600;
}

/* ---------- ブログ ---------- */

.article-list {
  list-style: none;
  max-width: 740px;
  margin: 0 auto;
}

.article-list li {
  margin-bottom: 18px;
}

.article-list a {
  display: block;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 30px;
  text-decoration: none;
  color: var(--ink);
  transition: box-shadow 0.3s, transform 0.3s;
}

.article-list a:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.article-list .article-date {
  font-size: 12.5px;
  color: var(--muted);
  display: block;
  letter-spacing: 0.14em;
}

.article-list .article-title {
  font-size: 16.5px;
  font-weight: 600;
  color: var(--blue-deep);
  display: block;
  margin: 8px 0 6px;
  line-height: 1.9;
}

.article-list .article-excerpt {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 2;
}

/* 記事本文 */

.article {
  max-width: 740px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 56px 48px;
}

.article .article-date {
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.14em;
}

.article h1 {
  font-size: 25px;
  line-height: 1.9;
  margin: 12px 0 36px;
  color: var(--blue-deep);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.article h2 {
  font-size: 19px;
  margin: 52px 0 20px;
  padding-left: 18px;
  border-left: 2px solid var(--blue-accent);
  line-height: 1.9;
  color: var(--blue-deep);
}

.article h3 {
  font-size: 16px;
  margin: 34px 0 14px;
  color: var(--blue);
}

.article p {
  margin-bottom: 20px;
  font-size: 15px;
}

.article ul,
.article ol {
  margin: 0 0 20px 26px;
  font-size: 15px;
}

.article li {
  margin-bottom: 8px;
}

.prompt-box {
  background: var(--blue-mist);
  border: 1px dashed var(--blue-accent);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin: 18px 0 28px;
  font-size: 14px;
  white-space: pre-wrap;
  word-break: break-all;
  font-family: inherit;
  line-height: 2;
}

.prompt-box-label {
  display: inline-block;
  background: var(--blue-accent);
  color: var(--white);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  padding: 3px 16px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.note-box {
  background: var(--blue-pale);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 18px 0 28px;
  font-size: 14px;
}

.article-cta {
  background: var(--blue-pale);
  border-radius: var(--radius);
  padding: 40px 30px;
  text-align: center;
  margin-top: 56px;
}

.article-cta p {
  margin-bottom: 22px;
  font-weight: 600;
  color: var(--blue-deep);
}

/* ---------- プロフィール ---------- */

.profile-hero {
  padding-top: 72px;
}

.profile-avatar {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 50px;
  margin: 0 auto 22px;
  border: 1px solid var(--blue-accent);
  box-shadow: var(--shadow);
}

/* ---------- 準備中バナー ---------- */

.preparing {
  text-align: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 52px 34px;
  max-width: 680px;
  margin: 0 auto;
}

.preparing .emoji {
  font-size: 40px;
  margin-bottom: 16px;
}

/* ---------- ページヘッダー ---------- */

.page-header {
  background: linear-gradient(175deg, #fdfeff 0%, #e9f2fa 55%, #d5e6f4 100%);
  text-align: center;
  padding: 84px 24px 92px;
  position: relative;
  overflow: hidden;
}

.page-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 56px;
  background: url('data:image/svg+xml;charset=utf-8,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 100" preserveAspectRatio="none"%3E%3Cpath d="M0,64 C260,104 520,8 760,34 C1000,60 1240,24 1440,54 L1440,100 L0,100 Z" fill="%23f6f9fc"/%3E%3C/svg%3E') no-repeat bottom / 100% 100%;
}

.page-header h1 {
  font-size: 28px;
  margin-bottom: 14px;
  color: var(--blue-deep);
  position: relative;
  z-index: 1;
}

.page-header p {
  color: var(--blue);
  font-size: 14.5px;
  letter-spacing: 0.12em;
  position: relative;
  z-index: 1;
}

/* ---------- フッター ---------- */

.footer-cta {
  background: linear-gradient(170deg, #6d94bd 0%, var(--blue) 55%, var(--blue-deep) 100%);
  text-align: center;
  padding: 88px 24px;
  color: var(--white);
}

.footer-cta h2 {
  font-size: 25px;
  margin-bottom: 14px;
  line-height: 2;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.footer-cta p {
  margin-bottom: 36px;
  font-size: 14.5px;
  opacity: 0.9;
  letter-spacing: 0.12em;
}

.site-footer {
  background: var(--blue-deep);
  color: #b9c8da;
  text-align: center;
  padding: 44px 24px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
}

.site-footer a {
  color: #cfe0f0;
}

.site-footer .footer-nav {
  margin-bottom: 22px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 28px;
}

.site-footer .footer-nav a {
  color: #b9c8da;
  text-decoration: none;
  letter-spacing: 0.12em;
}

.site-footer .footer-nav a:hover {
  color: var(--white);
}

.site-footer .small {
  font-size: 11px;
  color: #8ba0b8;
  margin-top: 14px;
  line-height: 2;
}

/* ---------- スマホ調整 ---------- */

@media (max-width: 600px) {
  body {
    font-size: 15px;
  }

  .hero {
    padding: 72px 0 110px;
  }

  .hero h1 {
    font-size: 26px;
  }

  .section-title {
    font-size: 21px;
  }

  .section {
    padding: 60px 0;
  }

  .article {
    padding: 36px 22px;
  }

  .article h1 {
    font-size: 20px;
  }

  .btn {
    display: block;
    padding: 17px 28px;
  }

  .steps li {
    padding: 24px 22px 24px 82px;
  }

  .steps li::before {
    left: 22px;
    font-size: 22px;
  }

  .steps li::after {
    left: 24px;
    top: 62px;
    width: 26px;
  }

  .header-inner {
    justify-content: center;
  }

  .nav {
    justify-content: center;
  }
}