/* ==========================================================================
   ミノルAI サイト共通スタイル（2026-10 リデザイン）
   方針: ミッドナイトネイビー × シャンパンゴールド。明朝の見出しと広い余白で
         「上質なAIパートナー」としての落ち着きと信頼感を出す。
   ※ ブログ（scripts/build-blog.js が生成）もこのCSSを使うため、blog-* / article-* /
     category-* / page-hero / cta-band などのクラスは削除しないこと
   ========================================================================== */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.9;
  letter-spacing: 0.03em;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt";
}

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

a {
  color: var(--color-navy);
}

.container {
  max-width: var(--maxwidth);
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 48px;
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-gold);
  color: var(--color-ink);
  padding: 8px 16px;
  z-index: 300;
}

.skip-link:focus {
  left: 8px;
  top: 8px;
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* ==========================================================================
   ヘッダー（全ページ濃紺・固定）
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 18, 34, 0.94);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line-dark);
}

.site-header__inner {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.site-logo {
  display: block;
  text-decoration: none;
}

.site-logo img {
  height: 52px;
  width: auto;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  color: var(--color-white);
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.16em;
  padding: 8px 18px;
  cursor: pointer;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav__list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0;
  padding: 0;
}

.site-nav__list a {
  color: rgba(255, 255, 255, 0.86);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
}

.site-nav__list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--color-gold);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.site-nav__list a:hover,
.site-nav__list a[aria-current="page"] {
  color: var(--color-white);
}

.site-nav__list a:hover::after,
.site-nav__list a[aria-current="page"]::after {
  transform: scaleX(1);
}

/* ブログ生成物の LINE 画像ボタン（旧ヘッダー）用 */
.site-nav__line img {
  height: 36px;
  width: auto;
}

.site-nav__line::after {
  display: none;
}

.site-nav__ctas {
  display: flex;
  gap: 12px;
}

@media (max-width: 1079px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding: 8px 0 24px;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__list a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-line-dark);
    font-size: 15px;
  }

  .site-nav__list a::after {
    display: none;
  }

  .site-nav__ctas {
    flex-direction: column;
  }
}

/* ==========================================================================
   ボタン
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 32px;
  border-radius: 2px;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.btn-gold,
.btn-primary {
  background: var(--gradient-gold);
  color: var(--color-ink);
}

.btn-gold:hover,
.btn-primary:hover {
  transform: translateY(-1px);
  color: var(--color-ink);
  filter: brightness(1.06);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.btn-dark {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn-dark:hover {
  background: var(--color-ink);
  color: var(--color-gold);
}

.btn-line {
  background: #06C755;
  color: var(--color-white);
}

.btn-line:hover {
  filter: brightness(1.08);
  color: var(--color-white);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 13px;
}

.btn-arrow::after {
  content: "→";
  font-family: var(--font-en);
  transition: transform 0.25s ease;
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 0;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-navy);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--color-gold);
  padding-bottom: 4px;
}

.text-link::after {
  content: "→";
  font-family: var(--font-en);
}

/* ブログ生成物の互換 */
.service-card__link {
  color: var(--color-navy);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--color-gold);
}

@media (prefers-reduced-motion: reduce) {
  .btn,
  .btn-arrow::after {
    transition: none;
  }
}

/* ==========================================================================
   トップ：ヒーロー
   ========================================================================== */

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 70% at 85% 30%, rgba(201, 165, 92, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 10% 100%, rgba(34, 49, 79, 0.9) 0%, transparent 70%),
    var(--color-ink);
  color: var(--color-white);
  min-height: calc(100svh - var(--header-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* 細いグリッド線（上質な図面のような質感） */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 70% 40%, #000 30%, transparent 80%);
  mask-image: radial-gradient(ellipse 80% 80% at 70% 40%, #000 30%, transparent 80%);
}

/* 実りを表す金の円弧 */
.hero__orbit {
  position: absolute;
  right: -12vw;
  top: 50%;
  width: min(70vw, 820px);
  aspect-ratio: 1;
  transform: translateY(-50%);
  border-radius: 50%;
  border: 1px solid rgba(201, 165, 92, 0.35);
  pointer-events: none;
}

.hero__orbit::before,
.hero__orbit::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(201, 165, 92, 0.18);
}

.hero__orbit::before {
  inset: 12%;
}

.hero__orbit::after {
  inset: 26%;
  border-color: rgba(201, 165, 92, 0.12);
  background: radial-gradient(circle, rgba(227, 160, 46, 0.12) 0%, transparent 65%);
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 1360px;
  width: 100%;
  margin: 0 auto;
  padding: 96px 24px;
}

@media (min-width: 768px) {
  .hero__inner {
    padding: 120px 48px;
  }
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--color-gold);
  margin: 0 0 32px;
}

.hero__eyebrow::before {
  content: "";
  width: 48px;
  height: 1px;
  background: var(--color-gold);
}

.hero__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(36px, 6.4vw, 84px);
  line-height: 1.35;
  letter-spacing: 0.04em;
  margin: 0 0 32px;
}

.hero__title em {
  font-style: normal;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__lead {
  max-width: 640px;
  font-size: 16px;
  line-height: 2.1;
  color: rgba(255, 255, 255, 0.82);
  margin: 0 0 48px;
}

.hero__facts {
  list-style: none;
  margin: 72px 0 0;
  padding: 32px 0 0;
  border-top: 1px solid var(--color-line-dark);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 960px;
}

@media (min-width: 768px) {
  .hero__facts {
    grid-template-columns: repeat(4, 1fr);
  }
}

.hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.6;
}

.hero__facts strong {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-white);
}

/* ==========================================================================
   下層：ページヒーロー（ブログも共用）
   ========================================================================== */

.page-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 50% 80% at 95% 0%, rgba(201, 165, 92, 0.16) 0%, transparent 60%),
    var(--color-ink);
  color: var(--color-white);
}

.page-hero__inner {
  position: relative;
  max-width: var(--maxwidth);
  margin: 0 auto;
  padding: 88px 24px 72px;
}

@media (min-width: 768px) {
  .page-hero__inner {
    padding: 120px 48px 96px;
  }
}

.page-hero__eyebrow {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: 0.04em;
  color: var(--color-gold);
  margin: 0 0 16px;
}

.page-hero__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(28px, 4.4vw, 52px);
  line-height: 1.45;
  letter-spacing: 0.04em;
  margin: 0 0 24px;
  color: var(--color-white);
}

.page-hero__lead {
  max-width: 760px;
  font-size: 16px;
  line-height: 2.1;
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
}

.page-hero__updated {
  margin: 32px 0 0;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
}

/* 記事ページ */
.page-hero--article .page-hero__inner {
  max-width: 824px;
}

.page-hero--article .page-hero__title {
  font-size: clamp(24px, 3.4vw, 36px);
}

.page-hero--article .article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
}

.page-hero--article .blog-card__date {
  color: rgba(255, 255, 255, 0.7);
}

.article-eyecatch {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin-top: 32px;
}

/* パンくず */
.breadcrumb {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-line);
  font-size: 12px;
}

.breadcrumb ol {
  list-style: none;
  margin: 0 auto;
  padding: 12px 24px;
  max-width: var(--maxwidth);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

@media (min-width: 768px) {
  .breadcrumb ol {
    padding: 12px 48px;
  }
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--color-muted);
}

.breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
}

/* ==========================================================================
   セクション共通
   ========================================================================== */

.section {
  padding: 80px 0;
}

.section--lg {
  padding: 104px 0;
}

@media (min-width: 768px) {
  .section {
    padding: 112px 0;
  }

  .section--lg {
    padding: 144px 0;
  }
}

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

.section--ivory {
  background: var(--color-ivory);
}

.section--dark {
  background: var(--color-ink);
  color: var(--color-white);
}

.section-head {
  margin-bottom: 64px;
  max-width: 820px;
}

.section-head--center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-head--split {
  max-width: none;
  display: grid;
  gap: 24px;
}

@media (min-width: 1024px) {
  .section-head--split {
    grid-template-columns: 1.2fr 1fr;
    gap: 72px;
    align-items: end;
  }
}

.section__kicker {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--color-gold-deep);
  margin: 0 0 16px;
}

.section__kicker::before {
  content: "";
  width: 32px;
  height: 1px;
  background: currentColor;
}

.section-head--center .section__kicker::after {
  content: "";
  width: 32px;
  height: 1px;
  background: currentColor;
}

.section--dark .section__kicker {
  color: var(--color-gold);
}

.section__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.55;
  letter-spacing: 0.04em;
  margin: 0;
  color: var(--color-navy);
}

.section--dark .section__title {
  color: var(--color-white);
}

.section__title em {
  font-style: normal;
  color: var(--color-gold-deep);
}

.section--dark .section__title em {
  color: var(--color-gold);
}

.section__lead {
  margin: 24px 0 0;
  max-width: 720px;
  font-size: 16px;
  line-height: 2.1;
  color: var(--color-muted);
}

.section-head--split .section__lead {
  margin: 0;
}

.section--dark .section__lead {
  color: rgba(255, 255, 255, 0.75);
}

.section__more {
  margin: 56px 0 0;
}

.notice-text {
  color: var(--color-muted);
  font-size: 14px;
}

/* ==========================================================================
   お悩み
   ========================================================================== */

.problem-grid {
  display: grid;
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}

@media (min-width: 768px) {
  .problem-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .problem-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.problem {
  background: var(--color-white);
  padding: 36px 32px;
}

.problem__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 20px;
  color: var(--color-gold-deep);
  margin: 0 0 12px;
}

.problem__title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--color-navy);
  margin: 0 0 12px;
}

.problem__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-muted);
}

.problem-answer {
  margin: 64px auto 0;
  max-width: 820px;
  text-align: center;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 600;
  line-height: 1.8;
  color: var(--color-navy);
}

.problem-answer em {
  font-style: normal;
  color: var(--color-gold-deep);
  border-bottom: 1px solid var(--color-gold);
}

/* ==========================================================================
   コンセプト（4ステップの考え方）
   ========================================================================== */

.concept {
  display: grid;
  gap: 48px;
  align-items: center;
}

@media (min-width: 1024px) {
  .concept {
    grid-template-columns: 1fr 1fr;
    gap: 96px;
  }
}

.concept__copy {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 600;
  line-height: 1.7;
  margin: 0 0 32px;
}

.concept__copy em {
  font-style: normal;
  color: var(--color-gold);
}

.concept__body p {
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 2.1;
}

.cycle {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--color-line-dark);
  border: 1px solid var(--color-line-dark);
}

.cycle li {
  background: var(--color-ink);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cycle__en {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 18px;
  color: var(--color-gold);
}

.cycle__ja {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
}

.cycle__desc {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
}

/* ==========================================================================
   サービス内容（4サービス）
   ========================================================================== */

.svc {
  display: grid;
  gap: 32px;
  padding: 56px 0;
  border-top: 1px solid var(--color-line);
}

.svc:last-child {
  border-bottom: 1px solid var(--color-line);
}

@media (min-width: 1024px) {
  .svc {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 80px;
    padding: 72px 0;
  }
}

.svc__num {
  font-family: var(--font-display);
  font-size: 64px;
  line-height: 1;
  font-weight: 500;
  color: var(--color-gold);
  margin: 0 0 8px;
}

.svc__en {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--color-muted);
  margin: 0 0 16px;
  text-transform: uppercase;
}

.svc__title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-navy);
  margin: 0 0 20px;
}

.svc__lead {
  margin: 0;
  line-height: 2.1;
  color: var(--color-muted);
}

.svc__box {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  padding: 32px;
}

.svc__box h4 {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-gold-deep);
  margin: 0 0 12px;
  text-transform: uppercase;
}

.svc__box ul {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.svc__box ul:last-child {
  margin-bottom: 0;
}

.svc__box li {
  position: relative;
  padding: 10px 0 10px 24px;
  border-bottom: 1px solid var(--color-line);
  font-size: 15px;
  line-height: 1.8;
}

.svc__box li:last-child {
  border-bottom: none;
}

.svc__box li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 21px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--color-gold);
  transform: rotate(45deg);
}

.svc__deliverable {
  margin: 0;
  padding: 16px 20px;
  background: var(--color-ivory);
  font-size: 14px;
  line-height: 1.8;
}

.svc__deliverable strong {
  color: var(--color-navy);
}

/* ==========================================================================
   プログラム（3プラン）
   ========================================================================== */

.program-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 1024px) {
  .program-grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: stretch;
  }
}

.program {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 48px 32px 40px;
  border: 1px solid var(--color-line-dark);
  background: rgba(255, 255, 255, 0.03);
}

.program--featured {
  border-color: var(--color-gold);
  background: linear-gradient(180deg, rgba(201, 165, 92, 0.12) 0%, rgba(201, 165, 92, 0.02) 100%);
}

.program__badge {
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--gradient-gold);
  color: var(--color-ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 16px;
  white-space: nowrap;
}

.program__en {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--color-gold);
  margin: 0;
}

.program__title {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 600;
  margin: 0;
}

.program__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.75);
}

.program__meta {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 16px 0;
  border-top: 1px solid var(--color-line-dark);
  border-bottom: 1px solid var(--color-line-dark);
  font-size: 13px;
}

.program__meta div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.program__meta dt {
  color: rgba(255, 255, 255, 0.6);
}

.program__meta dd {
  margin: 0;
  text-align: right;
}

.program__list {
  list-style: none;
  margin: 0;
  padding: 0;
  flex-grow: 1;
}

.program__list li {
  position: relative;
  padding: 6px 0 6px 24px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
}

.program__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-gold);
}

.program-note {
  margin: 40px 0 0;
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

/* ==========================================================================
   比較表（他サービスとの違い）
   ========================================================================== */

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.compare {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--color-white);
}

.compare th,
.compare td {
  padding: 18px 16px;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}

.compare thead th {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-muted);
  background: var(--color-ivory);
}

.compare tbody th {
  width: 18%;
  color: var(--color-navy);
  font-weight: 700;
}

.compare .is-ours {
  background: var(--color-navy);
  color: var(--color-white);
}

.compare thead .is-ours {
  background: var(--color-ink);
  color: var(--color-gold);
  font-family: var(--font-serif);
  font-size: 16px;
}

.compare .is-ours strong {
  color: var(--color-gold);
}

/* ==========================================================================
   特徴
   ========================================================================== */

.feature-grid {
  display: grid;
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}

@media (min-width: 768px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature {
  background: var(--color-white);
  padding: 44px 32px;
}

.feature__num {
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 1;
  color: var(--color-gold);
  margin: 0 0 20px;
}

.feature__title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--color-navy);
  margin: 0 0 12px;
}

.feature__desc {
  margin: 0;
  font-size: 14px;
  line-height: 2;
  color: var(--color-muted);
}

/* ==========================================================================
   自社実証（Proof）
   ========================================================================== */

.proof {
  display: grid;
  gap: 56px;
}

@media (min-width: 1024px) {
  .proof {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 96px;
    align-items: start;
  }
}

.proof__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-line-dark);
}

.proof__list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-line-dark);
}

.proof__num {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--color-gold);
  line-height: 1.4;
}

.proof__title {
  display: block;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 18px;
  margin-bottom: 4px;
}

.proof__desc {
  display: block;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.7);
}

.credentials {
  margin-top: 40px;
  padding: 28px;
  border: 1px solid var(--color-line-dark);
}

.credentials__title {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--color-gold);
  margin: 0 0 12px;
}

.credentials ul {
  margin: 0;
  padding-left: 1.2em;
  font-size: 14px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.82);
}

/* ==========================================================================
   流れ（ステップ）
   ========================================================================== */

.flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
  counter-reset: flow;
}

@media (min-width: 768px) {
  .flow {
    grid-template-columns: repeat(3, 1fr);
  }
}

.flow li {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  padding: 32px 28px;
}

.flow li::before {
  counter-increment: flow;
  content: "STEP " counter(flow, decimal-leading-zero);
  display: block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--color-gold-deep);
  margin-bottom: 12px;
}

.flow__title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--color-navy);
  margin: 0 0 8px;
}

.flow__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-muted);
}

/* ==========================================================================
   活用シーン（業種別）
   ========================================================================== */

.usecase-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 768px) {
  .usecase-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .usecase-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.usecase {
  border-top: 2px solid var(--color-gold);
  padding: 28px 0 0;
}

.usecase__title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--color-navy);
  margin: 0 0 12px;
}

.usecase ul {
  margin: 0;
  padding-left: 1.2em;
  font-size: 14px;
  line-height: 2;
  color: var(--color-muted);
}

/* ツール */
.tool-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tool-list li {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 20px;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  color: var(--color-navy);
}

/* ==========================================================================
   メニュー詳細（/ai-tools/ など）
   ========================================================================== */

.menu-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 768px) {
  .menu-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.menu-card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.menu-card__icon {
  width: 48px;
  height: 48px;
}

.menu-card__en {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--color-gold-deep);
  margin: 0;
  text-transform: uppercase;
}

.menu-card__title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-navy);
  margin: 0;
  line-height: 1.5;
}

.menu-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 2;
  color: var(--color-muted);
}

.menu-card ul {
  margin: 0;
  padding-left: 1.2em;
  font-size: 14px;
  line-height: 2;
}

/* ==========================================================================
   要点・Q&A・FAQ（AEO）
   ========================================================================== */

.summary {
  padding: 64px 0 0;
}

.summary__box {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-top: 2px solid var(--color-gold);
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .summary__box {
    padding: 40px 48px;
  }
}

.summary__label {
  margin: 0 0 4px;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--color-gold-deep);
}

.summary__title {
  font-family: var(--font-serif);
  margin: 0 0 16px;
  font-size: 20px;
  font-weight: 600;
  color: var(--color-navy);
}

.summary__list {
  margin: 0;
}

.summary__list > div {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--color-line);
}

@media (min-width: 768px) {
  .summary__list > div {
    grid-template-columns: 180px 1fr;
    gap: 24px;
  }
}

.summary__list dt {
  font-weight: 700;
  color: var(--color-navy);
  font-size: 14px;
}

.summary__list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
}

.summary__list a {
  color: var(--color-gold-deep);
}

.faq {
  border-top: 1px solid var(--color-line);
  max-width: 960px;
}

.faq details {
  border-bottom: 1px solid var(--color-line);
}

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 26px 48px;
  position: relative;
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-navy);
  font-size: 17px;
  line-height: 1.7;
}

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

.faq summary::before {
  content: "Q";
  position: absolute;
  left: 8px;
  top: 22px;
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--color-gold);
}

.faq summary::after {
  content: "+";
  position: absolute;
  right: 12px;
  top: 22px;
  font-family: var(--font-en);
  font-size: 22px;
  color: var(--color-navy);
  transition: transform 0.2s ease;
}

.faq details[open] summary::after {
  transform: rotate(45deg);
}

.faq__answer {
  padding: 0 48px 28px;
  margin: 0;
  line-height: 2.05;
  color: var(--color-muted);
}

.qa-block {
  display: grid;
  gap: 12px;
  padding: 48px 0;
  border-top: 1px solid var(--color-line);
}

.qa-block:last-of-type {
  border-bottom: 1px solid var(--color-line);
}

@media (min-width: 1024px) {
  .qa-block {
    grid-template-columns: 120px 1fr;
    gap: 40px;
  }
}

.qa-block__num {
  margin: 0;
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 1;
  color: var(--color-gold);
}

.qa-block__q {
  font-family: var(--font-serif);
  margin: 0 0 16px;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--color-navy);
}

.qa-block__a {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.95;
  padding-left: 16px;
  border-left: 2px solid var(--color-gold);
}

.qa-block__points {
  margin: 0;
  padding-left: 1.2em;
  line-height: 2;
  color: var(--color-muted);
}

.area-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  font-size: 15px;
}

.area-table th,
.area-table td {
  padding: 18px 20px;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
}

.area-table thead th {
  background: var(--color-navy);
  color: var(--color-white);
  font-size: 13px;
}

.area-table tbody th {
  color: var(--color-navy);
  width: 30%;
}

/* ==========================================================================
   CTA帯（ブログも共用）
   ========================================================================== */

.cta-band {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 50% 90% at 50% 120%, rgba(201, 165, 92, 0.22) 0%, transparent 60%),
    var(--color-ink);
  color: var(--color-white);
  padding: 112px 0;
  text-align: center;
}

.cta-band__en {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(22px, 2.8vw, 30px);
  color: var(--color-gold);
  margin: 0 0 16px;
}

.cta-band__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.6;
  margin: 0 0 20px;
}

.cta-band__lead {
  max-width: 640px;
  margin: 0 auto 40px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 2;
}

.cta-band .btn-group {
  justify-content: center;
}

.cta-band__sub {
  margin: 16px 0 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

/* ==========================================================================
   実績
   ========================================================================== */

.works-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 768px) {
  .works-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .works-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.work-card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-top: 2px solid var(--color-gold);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.work-card__cat {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-gold-deep);
}

.work-card__title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--color-navy);
  margin: 0;
}

.work-card__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.95;
}

.work-card dl {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
}

.work-card dt {
  font-weight: 700;
  color: var(--color-navy);
}

.work-card dd {
  margin: 0 0 8px;
}

/* ==========================================================================
   会社概要・規約・お問い合わせ
   ========================================================================== */

.info-table {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--color-line);
}

.info-table tr,
.info-table th,
.info-table td {
  display: block;
  text-align: left;
  font-size: 15px;
  vertical-align: top;
}

.info-table th {
  color: var(--color-navy);
  padding: 20px 0 4px;
}

.info-table td {
  padding: 0 0 20px;
  border-bottom: 1px solid var(--color-line);
  line-height: 1.9;
}

@media (min-width: 768px) {
  .info-table tr {
    display: table-row;
  }

  .info-table th,
  .info-table td {
    display: table-cell;
    padding: 24px 16px;
    border-bottom: 1px solid var(--color-line);
  }

  .info-table th {
    width: 25%;
    padding-left: 0;
  }
}

.legal-block {
  max-width: 760px;
}

.legal-block h3 {
  font-family: var(--font-serif);
  color: var(--color-navy);
  font-size: 18px;
  margin: 40px 0 8px;
}

.legal-block h3:first-child {
  margin-top: 0;
}

.legal-block p {
  margin: 0 0 8px;
}

.contact-grid {
  display: grid;
  gap: 24px;
  margin-bottom: 64px;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.contact-card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-card__en {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--color-gold-deep);
  margin: 0;
}

.contact-card__title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-navy);
  margin: 0;
}

.contact-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-muted);
}

.form-embed iframe {
  border: none;
  width: 100%;
  background: var(--color-white);
}

/* ==========================================================================
   フッター（ブログも共用）
   ========================================================================== */

.site-footer {
  background: var(--color-ink);
  color: var(--color-white);
  padding: 88px 0 32px;
  border-top: 1px solid var(--color-line-dark);
}

.site-footer__inner {
  max-width: var(--maxwidth);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  gap: 48px;
}

@media (min-width: 768px) {
  .site-footer__inner {
    padding: 0 48px;
    grid-template-columns: 1.4fr repeat(3, 1fr);
  }
}

.site-footer__company {
  font-size: 13px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.7);
}

.site-footer__company p {
  margin: 0;
}

.site-footer__company img {
  height: 56px;
  width: auto;
  margin-bottom: 20px;
}

.site-footer__tagline {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--color-white);
  margin: 0 0 16px !important;
}

.site-footer__heading {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--color-gold);
  margin: 0 0 16px;
}

.site-footer__nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-footer__nav a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 14px;
}

.site-footer__nav a:hover {
  color: var(--color-gold);
}

.site-footer__bottom {
  max-width: var(--maxwidth);
  margin: 64px auto 0;
  padding: 24px 24px 0;
  border-top: 1px solid var(--color-line-dark);
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.5);
}

@media (min-width: 768px) {
  .site-footer__bottom {
    padding: 24px 48px 0;
  }
}

/* ==========================================================================
   スクロール連動フェードアップ
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ==========================================================================
   ブログ（一覧・カテゴリ・記事）
   ========================================================================== */

.category-badge {
  display: inline-block;
  background: transparent;
  color: var(--color-gold-deep);
  border: 1px solid var(--color-gold);
  padding: 3px 12px;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.page-hero .category-badge {
  color: var(--color-gold);
}

a.category-badge:hover {
  background: var(--color-gold);
  color: var(--color-ink);
}

.category-filter {
  margin: 0 0 40px;
}

.category-filter__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.category-filter__link {
  display: inline-block;
  color: var(--color-navy);
  text-decoration: none;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 700;
}

.category-filter__link:hover,
.category-filter__link.is-active {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: var(--color-white);
}

.blog-card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .blog-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .blog-card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.blog-card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  overflow: hidden;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.blog-card:hover {
  box-shadow: 0 16px 40px rgba(11, 18, 34, 0.1);
  transform: translateY(-2px);
}

.blog-card__link {
  display: block;
  padding: 24px;
  color: inherit;
  text-decoration: none;
}

.blog-card__thumb {
  width: 100%;
  height: auto;
  margin: 0 0 16px;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 12px;
}

.blog-card__date {
  color: var(--color-muted);
  font-size: 13px;
}

.blog-card__title {
  font-family: var(--font-serif);
  color: var(--color-navy);
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
  line-height: 1.6;
}

.blog-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.container--article {
  max-width: 824px;
}

.article-body {
  font-size: 16px;
  line-height: 2;
  color: var(--color-text);
}

.article-body h2 {
  font-family: var(--font-serif);
  color: var(--color-navy);
  font-size: 24px;
  font-weight: 600;
  margin: 56px 0 20px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
}

.article-body h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.article-body h3 {
  font-family: var(--font-serif);
  color: var(--color-navy);
  font-size: 19px;
  margin: 36px 0 12px;
}

.article-body p {
  margin: 0 0 22px;
}

.article-body img {
  height: auto;
  margin: 8px auto;
  border: 1px solid var(--color-line);
}

.article-body ul,
.article-body ol {
  margin: 0 0 22px;
  padding-left: 24px;
}

.article-body li {
  margin: 0 0 8px;
}

.article-body a {
  color: var(--color-gold-deep);
  text-decoration: underline;
}

.article-body strong {
  color: var(--color-navy);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 24px;
  font-size: 14px;
  display: block;
  overflow-x: auto;
}

.article-body th,
.article-body td {
  border: 1px solid var(--color-line);
  padding: 10px 12px;
  text-align: left;
}

.article-body th {
  background: var(--color-ivory);
  color: var(--color-navy);
}

.article-body pre {
  background: var(--color-ink);
  color: #E8E4DA;
  padding: 20px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
  margin: 0 0 22px;
}

.article-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.92em;
}

.article-body :not(pre) > code {
  background: var(--color-ivory);
  padding: 2px 6px;
}

.article-body blockquote {
  margin: 0 0 22px;
  padding: 20px 24px;
  background: var(--color-ivory);
  border-left: 2px solid var(--color-gold);
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-footer-cta {
  margin-top: 56px;
  padding: 28px;
  background: var(--color-ivory);
  border-top: 2px solid var(--color-gold);
}

.article-footer-cta__line {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 700;
}

.article-footer-cta__line:last-child {
  margin-bottom: 0;
}

.article-footer-cta__line a {
  color: var(--color-navy);
  text-decoration: none;
}

.article-footer-cta__line a:hover {
  color: var(--color-gold-deep);
}