/* ═══════════════════════════════════════════════════════════════
   ビジアニAI LP — A案（クラシック信頼型）
   ═══════════════════════════════════════════════════════════════ */

/* ───────── Reset & Base ───────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

:root {
  --ink: #0B1B3B;
  --accent: #CC183E;
  --secondary: #1857B5;
  --secondary-light: rgba(24, 87, 181, 0.08);
  
  --surface: #F5F7FB;
  --border: rgba(11, 27, 59, 0.12);
  --ink-mute: rgba(11, 27, 59, 0.62);

  --font-jp: 'Noto Sans JP', sans-serif;
  --font-display: 'Zen Kaku Gothic New', 'Noto Sans JP', sans-serif;
  --font-en: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: #fff;
  color: var(--ink);
  font-family: var(--font-jp);
  width: 100%;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; }
button { font: inherit; }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; }

/* ───────── Common: Section ───────── */
.section {
  padding-top: 120px;
  padding-bottom: 120px;
  position: relative;
}

.section--white { background: #fff; }
.section--light { background: var(--surface); }
.section--dark { background: var(--ink); }
.section--cream { background: #FAFAF7; }

.section__inner {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 64px;
}

/* ───────── Common: Section Heading ───────── */
.section-heading {
  text-align: left;
}

.section-heading--center { text-align: center; max-width: 720px; margin-inline: auto; }
.section-heading--center .section-subtitle { margin-inline: auto; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  font-family: var(--font-en);
  margin-bottom: 14px;
}

.eyebrow__line {
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.eyebrow--accent { color: var(--accent); }

.section-title {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  margin: 0;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

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

.section-subtitle {
  margin-top: 18px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-mute);
  font-family: var(--font-jp);
  text-wrap: pretty;
  max-width: 680px;
}

.section-heading--white .section-subtitle { color: rgba(255, 255, 255, 0.72); }

/* ───────── Common: Button ───────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 10px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  cursor: pointer;
  font-family: var(--font-display);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }

.btn--sm { padding: 10px 18px; font-size: 13px; }
.btn--md { padding: 16px 28px; font-size: 15px; }
.btn--lg { padding: 20px 36px; font-size: 16px; }

.btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 8px 24px -10px rgba(246, 59, 59, 0.39);
}
.btn--primary:hover { box-shadow: 0 12px 32px -8px rgba(246, 59, 59, 0.39); }

.btn--secondary {
  background: rgba(255, 255, 255, 0.5);
  color: var(--accent);
  border-color: var(--accent);
}
.btn--secondary:hover { background: rgba(255, 255, 255, 0.7); }

.btn--recruit {
  position: relative;
}
.btn--recruit:hover { transform: translateY(-1px); }

.btn__badge {
  position: absolute;
  top: -10px;
  right: -12px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-jp);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 999px;
  transform: rotate(8deg);
  box-shadow: 0 6px 14px -4px rgba(204, 24, 62, 0.45);
  pointer-events: none;
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: transparent;
}

.btn--on-dark {
  background: #fff;
  color: var(--ink);
  border-color: #fff;
}
.btn--on-dark:hover { background: rgba(255, 255, 255, 0.92); }

.btn__label { display: inline-block; line-height: 1.15; }
.btn__arrow { font-size: 1em; transform: translateY(-1px); }

/* ───────── Common: FadeIn ───────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ───────── Common: Logo Mark ───────── */
.logo-mark {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark__text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-mark__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--ink);
  letter-spacing: 0.01em;
}

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

.logo-mark__tagline {
  font-family: var(--font-en);
  font-size: 9px;
  color: rgba(11, 27, 59, 0.5);
  margin-top: 3px;
  letter-spacing: 0.18em;
}

.logo-mark--white .logo-mark__name { color: #fff; }
.logo-mark--white .logo-mark__tagline { color: rgba(255, 255, 255, 0.6); }

/* index_v2.html用：ロゴをimg化したため高さ制約を追加 */
.logo-mark img {
  height: 36px;
  width: auto;
  display: block;
}

/* ───────── Common: NumberStat ───────── */
.number-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.number-stat__label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: rgba(11, 27, 59, 0.6);
  font-family: var(--font-en);
  text-transform: uppercase;
}

.number-stat__value {
  font-family: var(--font-en);
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
  display: flex;
  align-items: baseline;
}

.number-stat__suffix {
  font-size: 0.5em;
  margin-left: 4px;
  font-weight: 600;
  opacity: 0.85;
}

.number-stat__value--fraction { letter-spacing: -0.03em; }

.number-stat__slash {
  font-size: 0.5em;
  margin: 0 4px;
}

.number-stat__sublabel {
  font-size: 13px;
  color: var(--ink-mute);
  font-family: var(--font-jp);
}

/* ───────── Common: Placeholder ───────── */
.placeholder {
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #E8EDF5 0%, #D6DEEB 100%);
  color: rgba(11, 27, 59, 0.5);
}

.placeholder--dark {
  background: linear-gradient(135deg, #0B1B3B 0%, #1E3A5F 100%);
  color: rgba(255, 255, 255, 0.85);
}

.placeholder--accent {
  background: linear-gradient(135deg, #1E3A8A 0%, #3B82F6 100%);
  color: rgba(255, 255, 255, 0.85);
}

.placeholder--16-9 { aspect-ratio: 16 / 9; }
.placeholder--4-5 { aspect-ratio: 4 / 5; }

.placeholder__grid {
  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: 32px 32px;
}

.placeholder__label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.2em;
  z-index: 1;
}

.placeholder__label svg { display: inline-block; }

/* ═══════════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════════ */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: rgba(11, 27, 59, 0.08);
}

.header__inner {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

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

.nav__link {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  font-family: var(--font-jp);
  transition: opacity 0.2s ease;
}

.nav__link:hover { opacity: 0.6; }

/* ═══════════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  padding-top: 96px;
  padding-bottom: 80px;
  background: #F5FAFD;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(11, 27, 59, 0.06) 1px, transparent 0);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(ellipse at top right, black, transparent 70%);
          mask-image: radial-gradient(ellipse at top right, black, transparent 70%);
  pointer-events: none;
}

/* index_v2.html用: Heroをダーク背景（紺 + 放射光 + 升目）に */
.hero--dark {
  background: var(--ink);
  color: #fff;
}

.hero__bg-radial {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.18), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.12), transparent 50%);
  pointer-events: none;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

/* ダーク背景下のテキスト/ボタン色上書き */
.hero--dark .hero__title { color: #fff; }
.hero--dark .hero__lead { color: rgba(255, 255, 255, 0.8); }
.hero--dark .btn--secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.32);
  background: transparent;
}
.hero--dark .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* index.html用: Hero画像背景バリアント */
.hero--image {
  background: #fff;
  color: var(--ink);
  min-height: 560px;
}

.hero__bg-image {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.6)),
    url('../img/BIZI_ANI_AI_Hero.png');
  background-size: auto, auto 100%;
  background-position: 0 0, center center;
  background-repeat: no-repeat;
  pointer-events: none;
}

.hero__decor-logo {
  align-self: flex-end;
  width: 320px;
  pointer-events: none;
  z-index: 1;
}
.hero__decor-logo img {
  width: 100%;
  height: auto;
  display: block;
}

/* hero--imageモードでのテキスト色（ダーク文字に戻す） */
.hero--image .hero__title { color: var(--ink); }
.hero--image .hero__lead { color: rgba(11, 27, 59, 0.78); }

/* スクリーンショットの白い下線を再現（accent修飾子の display:none を上書き） */
.hero--image .hero__highlight--accent .hero__highlight-mark {
  display: block;
  background: rgba(255, 255, 255, 0.85);
}

.hero__inner {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 64px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 48px;
  align-items: stretch;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.18);
  font-size: 12px;
  font-weight: 600;
  color: #1E40AF;
  font-family: var(--font-jp);
  margin-bottom: 28px;
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
}

.hero__title {
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
  margin: 0;
  letter-spacing: 0.005em;
  text-wrap: balance;
}

.hero__highlight {
  position: relative;
  display: inline-block;
}

.hero__highlight-text {
  position: relative;
  z-index: 1;
}

.hero__highlight-mark {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 14px;
  background: rgba(59, 130, 246, 0.18);
  z-index: 0;
}

/* index_v2.html用（テキスト色 #CC183E、下線非表示） */
.hero__highlight--accent .hero__highlight-text {
  color: #CC183E;
}
.hero__highlight--accent .hero__highlight-mark {
  display: none;
}

.hero__lead {
  margin-top: 28px;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(11, 27, 59, 0.7);
  font-family: var(--font-jp);
  max-width: 540px;
  text-wrap: pretty;
}

.hero__actions {
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.hero__notes {
  margin-top: 16px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 12px;
  color: rgba(11, 27, 59, 0.55);
  font-family: var(--font-jp);
}

.hero__visual-wrapper {
  width: 100%;
}

.hero__metrics-card {
  position: relative;
  background: #fff;
  border: 1px solid rgba(11, 27, 59, 0.08);
  border-radius: 20px;
  padding: 32px;
  box-shadow:
    0 30px 60px -30px rgba(11, 27, 59, 0.18),
    0 8px 20px -10px rgba(11, 27, 59, 0.06);
}

.hero__metrics-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  font-size: 11px;
  color: rgba(11, 27, 59, 0.55);
  font-family: var(--font-en);
  letter-spacing: 0.18em;
}

.hero__metrics-card .placeholder {
  margin-bottom: 28px;
}

.hero__metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 24px;
  border-top: 1px dashed rgba(11, 27, 59, 0.12);
}

/* ═══════════════════════════════════════════════════════════════
   TRUST BAR
   ═══════════════════════════════════════════════════════════════ */
.trust-bar {
  background: #fff;
  border-top: 1px solid rgba(11, 27, 59, 0.08);
  border-bottom: 1px solid rgba(11, 27, 59, 0.08);
  padding: 32px 0;
}

.trust-bar__inner {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 64px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 48px;
  align-items: center;
}

.trust-bar__powered {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-right: 1px solid rgba(11, 27, 59, 0.1);
  padding-right: 32px;
}

.trust-bar__powered-eyebrow {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(11, 27, 59, 0.55);
  font-family: var(--font-en);
}

.trust-bar__powered-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
}

.trust-bar__powered-desc {
  font-size: 11px;
  color: rgba(11, 27, 59, 0.55);
  font-family: var(--font-jp);
}

.trust-bar__logos {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  align-items: center;
}

.trust-bar__logo {
  height: 36px;
  border-radius: 6px;
  border: 1px dashed rgba(11, 27, 59, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: rgba(11, 27, 59, 0.4);
}

/* ═══════════════════════════════════════════════════════════════
   CONTEXT
   ═══════════════════════════════════════════════════════════════ */
.context__grid {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.context-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  border: 1px solid rgba(11, 27, 59, 0.06);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.context-card__count {
  font-size: 11px;
  font-family: var(--font-en);
  letter-spacing: 0.2em;
  color: rgba(11, 27, 59, 0.5);
}

.context-card__num {
  font-family: var(--font-en);
  font-size: 36px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.context-card__num--small { font-size: 26px; }

.context-card__label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
}

.context-card__desc {
  font-size: 13px;
  line-height: 1.85;
  color: rgba(11, 27, 59, 0.65);
  font-family: var(--font-jp);
  margin: 0;
  text-wrap: pretty;
}

/* ═══════════════════════════════════════════════════════════════
   PROBLEM
   ═══════════════════════════════════════════════════════════════ */
.problem__list {
  margin-top: 56px;
  display: flex;
  flex-direction: column;
}

.problem__row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(11, 27, 59, 0.08);
}

.problem__row--first { border-top: 1px solid rgba(11, 27, 59, 0.08); }

.problem__challenge {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.problem__challenge p {
  margin: 0;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  font-family: var(--font-jp);
  font-weight: 500;
}

.problem__no {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(220, 38, 38, 0.08);
  color: #B91C1C;
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* TODO: 以下 .problem__arrow / .problem__answer-box / .problem__answer-eyebrow は
   PROBLEM内の回答ボックスを廃止したため未使用。後で削除する。
   関連: .problem__row のgrid-template-columns（3列）と、
   モバイル用 @media (max-width: 1024px) 内の .problem__arrow / .problem__row 1列化ルールも併せて削除予定。 */
.problem__arrow {
  font-family: var(--font-en);
  font-size: 24px;
  color: var(--accent);
  font-weight: 300;
}

.problem__answer-box {
  background: rgba(59, 130, 246, 0.06);
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
}

.problem__answer-box p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  font-family: var(--font-jp);
}

.problem__answer-eyebrow {
  font-size: 10px;
  font-family: var(--font-en);
  letter-spacing: 0.18em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 4px;
}

/* index_v2.html用（吹き出し + 男性画像） */
.problem__bubbles {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.problem-bubble {
  position: relative;
  background: #fff;
  border: 1px solid rgba(11, 27, 59, 0.08);
  border-radius: 20px;
  padding: 28px 28px 30px;
  box-shadow: 0 12px 28px -14px rgba(11, 27, 59, 0.14);
  height: 100%;
}

/* 吹き出しの尻尾（下向き三角） */
.problem-bubble::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  width: 18px;
  height: 18px;
  background: #fff;
  border-right: 1px solid rgba(11, 27, 59, 0.08);
  border-bottom: 1px solid rgba(11, 27, 59, 0.08);
  transform: translateX(-50%) rotate(45deg);
}

.problem-bubble__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(220, 38, 38, 0.08);
  color: var(--accent);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 14px;
}

.problem-bubble p {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  font-family: var(--font-jp);
  font-weight: 500;
}

.problem__man {
  margin-top: 56px;
  display: flex;
  justify-content: center;
}

.problem__man img {
  width: 100%;
  max-width: 320px;
  height: auto;
  display: block;
}

.problem__cta {
  margin-top: 56px;
  padding: 32px 40px;
  background: var(--ink);
  color: #fff;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.problem__cta-eyebrow {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--font-en);
  margin-bottom: 6px;
}

.problem__cta-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════════
   ABOUT
   ═══════════════════════════════════════════════════════════════ */
.about { padding-top: 140px; padding-bottom: 140px; }

.about__inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 80px;
  align-items: center;
}

.about__visual {
  position: relative;
}

.about__visual-card {
  position: absolute;
  bottom: -24px;
  right: -24px;
  padding: 20px;
  background: #fff;
  border: 1px solid rgba(11, 27, 59, 0.08);
  border-radius: 12px;
  box-shadow: 0 20px 40px -20px rgba(11, 27, 59, 0.18);
  min-width: 200px;
}

.about__visual-card-eyebrow {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: rgba(11, 27, 59, 0.5);
  font-family: var(--font-en);
  margin-bottom: 4px;
}

.about__visual-card-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.about__text {
  margin-top: 24px;
  font-size: 16px;
  line-height: 1.95;
  color: rgba(11, 27, 59, 0.72);
  font-family: var(--font-jp);
  text-wrap: pretty;
}

.about__text strong { color: var(--ink); font-weight: 700; }

.about__features {
  margin: 32px 0 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about__feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
  font-family: var(--font-jp);
}

.about__feature-check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  margin-top: 2px;
}

.about__cta { margin-top: 36px; }

/* ═══════════════════════════════════════════════════════════════
   STRENGTH
   ═══════════════════════════════════════════════════════════════ */
.section--light + .section,
.section.section--light { padding-top: 140px; padding-bottom: 140px; }

.strength__list {
  margin-top: 64px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.strength-card {
  background: #fff;
  border-radius: 20px;
  border: 1px solid rgba(11, 27, 59, 0.06);
  padding: 48px;
  display: grid;
  grid-template-columns: 120px 1fr 320px;
  gap: 48px;
  align-items: center;
}

.strength-card__no {
  font-family: var(--font-en);
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  letter-spacing: -0.04em;
}

.strength-card__tag {
  font-size: 11px;
  font-family: var(--font-en);
  letter-spacing: 0.2em;
  color: rgba(11, 27, 59, 0.5);
  margin-top: 8px;
}

.strength-card__title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.strength-card__headline {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
}

.strength-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(11, 27, 59, 0.7);
  font-family: var(--font-jp);
  text-wrap: pretty;
}

.strength-card__stat {
  border-left: 1px solid rgba(11, 27, 59, 0.08);
  padding-left: 36px;
}

.strength-card__stat-label {
  font-size: 11px;
  font-family: var(--font-en);
  letter-spacing: 0.18em;
  color: rgba(11, 27, 59, 0.5);
  margin-bottom: 8px;
}

.strength-card__stat-value {
  font-family: var(--font-en);
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
}

.strength-card__stat-value span {
  font-size: 0.45em;
  margin-left: 6px;
  font-weight: 600;
}

.strength__cta {
  margin-top: 48px;
  display: flex;
  justify-content: center;
}

/* ═══════════════════════════════════════════════════════════════
   PRODUCT
   ═══════════════════════════════════════════════════════════════ */
.product { padding-top: 140px; padding-bottom: 140px; }

.product__nav {
  margin-top: 48px;
  padding: 28px 32px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.04) 0%, rgba(139, 92, 246, 0.04) 100%);
  border: 1px solid rgba(59, 130, 246, 0.12);
  border-radius: 16px;
}

.product__nav-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.product__nav-icon { font-size: 18px; }

.product__nav-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
}

.product__nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.product__nav-btn {
  text-align: left;
  background: #fff;
  border: 1px solid rgba(11, 27, 59, 0.08);
  border-radius: 10px;
  padding: 16px 18px;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  font-family: var(--font-jp);
}

.product__nav-btn:hover {
  border-color: var(--product-color);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -12px color-mix(in srgb, var(--product-color) 25%, transparent);
}

.product__nav-btn.is-active {
  border-color: var(--product-color);
  background: color-mix(in srgb, var(--product-color) 8%, #fff);
  box-shadow: 0 8px 20px -10px color-mix(in srgb, var(--product-color) 35%, transparent);
}

.product__nav-prefix {
  font-size: 11px;
  color: rgba(11, 27, 59, 0.55);
  margin-bottom: 6px;
}

.product__nav-purpose {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 10px;
}

.product__nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--product-color);
  font-weight: 600;
}

.product__nav-link span { font-size: 10px; }

/* TODO: index.html用（旧仕様：4枚のカードを2列gridで一覧表示）。後で削除する。
.product__cards {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.product-card {
  background: #fff;
  border: 1px solid rgba(11, 27, 59, 0.08);
  border-radius: 16px;
  padding: 32px;
  height: 100%;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.product-card.is-highlighted {
  border: 2px solid var(--product-color);
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--product-color) 10%, transparent);
}
*/

/* index_v2.html用（新仕様：診断ナビで選択したカード1枚のみ表示） */
.product__cards {
  margin-top: 48px;
  position: relative;
}

.product-card {
  background: #fff;
  border: 1px solid rgba(11, 27, 59, 0.08);
  border-radius: 16px;
  padding: 32px;
  transition: opacity 0.25s ease;
  display: none;
  opacity: 0;
}

.product-card.is-active {
  display: block;
  opacity: 1;
}

.product-card__media {
  margin-bottom: 24px;
}

/* index_v2.html用：placeholderからimg化 */
.product-card__media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.product-card__media--coming-soon {
  aspect-ratio: 16 / 9;
  width: 80%;
  margin-inline: auto;
  border-radius: 12px;
  background: rgba(11, 27, 59, 0.04);
  border: 1px dashed rgba(11, 27, 59, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 500;
  color: rgba(11, 27, 59, 0.5);
  letter-spacing: 0.08em;
}

.product-card__media--gradient {
  background: linear-gradient(135deg, color-mix(in srgb, var(--product-color) 90%, transparent) 0%, color-mix(in srgb, var(--product-color) 60%, transparent) 100%);
  color: rgba(255, 255, 255, 0.85);
}

.product-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.product-card__tag {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--product-color) 10%, transparent);
  color: var(--product-color);
  font-weight: 700;
  font-family: var(--font-jp);
  letter-spacing: 0.05em;
}

.product-card__count {
  font-size: 11px;
  color: rgba(11, 27, 59, 0.5);
  font-family: var(--font-en);
  letter-spacing: 0.16em;
}

.product-card__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
}

.product-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(11, 27, 59, 0.7);
  font-family: var(--font-jp);
  text-wrap: pretty;
}

.product-card__uses {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.product-card__use {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(11, 27, 59, 0.04);
  color: rgba(11, 27, 59, 0.7);
  font-family: var(--font-jp);
}

.product-card__metrics {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px dashed rgba(11, 27, 59, 0.12);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

.product-card__metric-label {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: rgba(11, 27, 59, 0.5);
  font-family: var(--font-en);
  margin-bottom: 4px;
}

.product-card__metric-value {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
}

.product-card__metric-range {
  font-family: var(--font-jp);
  font-size: 12px;
  font-weight: 500;
  color: rgba(11, 27, 59, 0.7);
  line-height: 1.4;
}

/* ═══════════════════════════════════════════════════════════════
   AI DIVISION
   ═══════════════════════════════════════════════════════════════ */
.ai-division { padding-top: 140px; padding-bottom: 140px; }

.ai-division__grid {
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  position: relative;
}

.ai-division__center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  border-radius: 999px;
  background: var(--ink);
  border: 2px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.8);
  z-index: 2;
}

.ai-division__card {
  border-radius: 16px;
  padding: 40px;
  height: 100%;
}

.ai-division__card--human {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.ai-division__card--ai {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12) 0%, rgba(139, 92, 246, 0.08) 100%);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.ai-division__card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.ai-division__card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  font-family: var(--font-en);
}

.ai-division__card-icon--human {
  background: #fff;
  color: var(--ink);
}

.ai-division__card-icon--ai {
  background: var(--accent);
  color: #fff;
}

.ai-division__card-eyebrow {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--font-en);
}

.ai-division__card-eyebrow--blue { color: rgba(147, 197, 253, 0.7); }

.ai-division__card-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
}

.ai-division__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ai-division__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  font-family: var(--font-jp);
  font-size: 14px;
  color: #fff;
}

.ai-division__item--ai { background: rgba(59, 130, 246, 0.06); }

.ai-division__item-no {
  font-family: var(--font-en);
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.16em;
  width: 24px;
}

.ai-division__item-no--blue { color: rgba(147, 197, 253, 0.6); }

.ai-division__note {
  margin-top: 40px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--font-jp);
  line-height: 1.8;
  max-width: 720px;
  margin-inline: auto;
}

/* ═══════════════════════════════════════════════════════════════
   PROCESS
   ═══════════════════════════════════════════════════════════════ */
.process { padding-top: 140px; padding-bottom: 140px; }

.process__steps-wrapper {
  margin-top: 80px;
  position: relative;
}

.process__line {
  position: absolute;
  top: 36px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(246, 59, 59, 0.4) 0 8px, transparent 8px 16px);
}

.process__steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.process-step__no {
  width: 72px;
  height: 72px;
  border-radius: 999px;
  background: #fff;
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
  box-shadow: 0 8px 16px -8px rgba(59, 130, 246, 0.4);
}

.process-step__title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}

.process-step__desc {
  margin: 0;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(11, 27, 59, 0.65);
  font-family: var(--font-jp);
  text-wrap: pretty;
}

.process-step__time {
  margin-top: 16px;
  padding: 6px 12px;
  background: rgba(246, 59, 59, 0.08);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  font-family: var(--font-jp);
}

/* ═══════════════════════════════════════════════════════════════
   PRICING
   ═══════════════════════════════════════════════════════════════ */
.pricing { padding-top: 140px; padding-bottom: 140px; }

.pricing__cards {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.pricing-card {
  background: #fff;
  border: 1px solid rgba(11, 27, 59, 0.08);
  border-radius: 14px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pricing-card__title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.pricing-card__avg-label {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: rgba(11, 27, 59, 0.5);
  font-family: var(--font-en);
  margin-bottom: 4px;
}

.pricing-card__avg-value {
  font-family: var(--font-en);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
}

.pricing-card__range {
  font-size: 11px;
  color: rgba(11, 27, 59, 0.5);
  font-family: var(--font-jp);
  margin-top: 6px;
}

.pricing-card__example {
  padding: 10px 12px;
  background: rgba(11, 27, 59, 0.04);
  border-radius: 8px;
  font-size: 11px;
  line-height: 1.6;
  color: rgba(11, 27, 59, 0.7);
  font-family: var(--font-jp);
}

.pricing-card__metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(11, 27, 59, 0.12);
}

.pricing-card__metric-label {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: rgba(11, 27, 59, 0.5);
  font-family: var(--font-en);
}

.pricing-card__metric-value {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-top: 2px;
}

.pricing-card__metric-value--strike {
  color: rgba(11, 27, 59, 0.7);
  text-decoration: line-through;
}

.pricing__note {
  margin-top: 16px;
  font-size: 11px;
  color: rgba(11, 27, 59, 0.5);
  font-family: var(--font-jp);
}

.pricing__cta {
  margin-top: 56px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ─── Compare Table ─── */
.compare {
  margin-top: 80px;
}

.compare__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
}

.compare__bar {
  width: 4px;
  height: 24px;
  background: var(--accent);
  border-radius: 2px;
}

.compare__table {
  background: #fff;
  border: 1px solid rgba(11, 27, 59, 0.08);
  border-radius: 16px;
  overflow: hidden;
}

.compare__head {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1.2fr;
  padding: 20px 28px;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  align-items: center;
}

.compare__head-label {
  color: rgba(255, 255, 255, 0.7);
  font-size: 11px;
  letter-spacing: 0.18em;
  font-family: var(--font-en);
}

.compare__head-us {
  display: flex;
  align-items: center;
  gap: 8px;
}

.compare__head-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
}

.compare__head-them { color: rgba(255, 255, 255, 0.7); }

.compare__row {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1.2fr;
  padding: 22px 28px;
  border-top: 1px solid rgba(11, 27, 59, 0.06);
  align-items: center;
}

.compare__row.is-win { background: rgba(59, 130, 246, 0.025); }

.compare__cell-item {
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.compare__cell {
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

.compare__cell--us.is-win {
  color: var(--accent);
  font-weight: 700;
}

.compare__cell--them { color: rgba(11, 27, 59, 0.6); }

.compare__check {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  flex-shrink: 0;
}

.compare__note {
  margin-top: 12px;
  font-size: 11px;
  color: rgba(11, 27, 59, 0.5);
  font-family: var(--font-jp);
}

/* ═══════════════════════════════════════════════════════════════
   WHY US
   ═══════════════════════════════════════════════════════════════ */
.why-us { padding-top: 140px; padding-bottom: 140px; }

.why-us__list {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.why-us__list-wide { grid-column: 1 / -1; }

.why-us-card {
  background: #fff;
  border-radius: 14px;
  padding: 32px;
  border: 1px solid rgba(11, 27, 59, 0.06);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  height: 100%;
}

.why-us-card__no {
  font-family: var(--font-en);
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.04em;
  opacity: 0.6;
}

.why-us-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
}

.why-us-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(11, 27, 59, 0.7);
  font-family: var(--font-jp);
  text-wrap: pretty;
}

/* ═══════════════════════════════════════════════════════════════
   HOW TO START
   ═══════════════════════════════════════════════════════════════ */
.how-to-start { padding-top: 140px; padding-bottom: 140px; }

.how-to-start__list {
  margin-top: 64px;
  display: flex;
  flex-direction: column;
}

.how-to-step {
  display: grid;
  grid-template-columns: 120px 1fr 200px;
  gap: 32px;
  align-items: center;
  padding: 28px 32px;
  border-top: 1px solid rgba(11, 27, 59, 0.08);
  background: #fff;
  transition: background 0.2s;
}

.how-to-step:hover { background: rgba(59, 130, 246, 0.03); }

.how-to-step--last { border-bottom: 1px solid rgba(11, 27, 59, 0.08); }

.how-to-step__no-block {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.how-to-step__no-label {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(11, 27, 59, 0.5);
  font-family: var(--font-en);
}

.how-to-step__no {
  font-family: var(--font-en);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
}

.how-to-step__title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.how-to-step__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(11, 27, 59, 0.65);
  font-family: var(--font-jp);
}

.how-to-step__time {
  justify-self: end;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(11, 27, 59, 0.04);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
  font-family: var(--font-jp);
}

/* ═══════════════════════════════════════════════════════════════
   FAQ
   ═══════════════════════════════════════════════════════════════ */
.faq { padding-top: 140px; padding-bottom: 140px; }

.faq__list {
  margin-top: 56px;
  max-width: 920px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #fff;
  border-radius: 12px;
  border: 1px solid rgba(11, 27, 59, 0.08);
  overflow: hidden;
}

.faq-item__btn {
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 22px 28px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
  font-family: var(--font-jp);
}

.faq-item__q-num {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  width: 28px;
}

.faq-item__q {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  font-family: var(--font-display);
}

.faq-item__toggle {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: rgba(11, 27, 59, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--ink);
  transition: transform 0.3s ease;
}

.faq-item.is-open .faq-item__toggle {
  transform: rotate(45deg);
}

.faq-item__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-item.is-open .faq-item__panel {
  max-height: 400px;
}

.faq-item__a {
  padding: 20px 28px 24px 76px;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(11, 27, 59, 0.72);
  font-family: var(--font-jp);
  text-wrap: pretty;
  border-top: 1px dashed rgba(11, 27, 59, 0.1);
}

.faq__cta {
  margin-top: 48px;
  display: flex;
  justify-content: center;
}

/* ═══════════════════════════════════════════════════════════════
   FINAL CTA
   ═══════════════════════════════════════════════════════════════ */
.final-cta {
  position: relative;
  background: var(--ink);
  color: #fff;
  padding: 120px 0;
  overflow: hidden;
}

.final-cta__bg-radial {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.18), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.12), transparent 50%);
}

.final-cta__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
}

.final-cta__inner {
  position: relative;
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: 64px;
  text-align: center;
}

.final-cta__eyebrow {
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--accent);
  font-family: var(--font-en);
  margin-bottom: 24px;
}

.final-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.005em;
  text-wrap: balance;
}

.final-cta__desc {
  margin-top: 28px;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.75);
  font-family: var(--font-jp);
  max-width: 640px;
  margin-inline: auto;
  text-wrap: pretty;
}

.final-cta__actions {
  margin-top: 44px;
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.final-cta__notes {
  margin-top: 20px;
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--font-jp);
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
.footer {
  background: #06112A;
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 0 32px;
}

.footer__inner {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 64px;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__brand-desc {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--font-jp);
  max-width: 360px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__link {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-jp);
  transition: color 0.2s ease;
}

.footer__link:hover { color: #fff; }

.footer__bottom {
  padding-top: 20px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
  font-family: var(--font-en);
  letter-spacing: 0.05em;
}

/* ═══════════════════════════════════════════════════════════════
   FLOATING CTA
   ═══════════════════════════════════════════════════════════════ */
.floating-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.floating-cta.is-shown {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.floating-cta__btn {
  box-shadow:
    0 18px 40px -12px rgba(246, 59, 59, 0.39),
    0 4px 12px rgba(0, 0, 0, 0.1);
}

/* ═══════════════════════════════════════════════════════════════
   HAMBURGER MENU — トグルボタン + オーバーレイ
   ═══════════════════════════════════════════════════════════════ */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 10px;
  flex-direction: column;
  justify-content: space-between;
  align-items: stretch;
  z-index: 60;
  position: relative;
}

.nav-toggle__line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.2s ease;
  transform-origin: center;
}

.nav-toggle.is-open .nav-toggle__line:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}
.nav-toggle.is-open .nav-toggle__line:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-open .nav-toggle__line:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(11, 27, 59, 0.5);
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.nav-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.nav__cta { display: none; }

body.nav-locked { overflow: hidden; }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — TABLET (≤ 1024px)
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  /* ─── Common ─── */
  .section { padding-top: 80px; padding-bottom: 80px; }
  .section__inner { padding-inline: 32px; }
  .section-title { font-size: 32px; }
  .section-subtitle { font-size: 15px; }

  /* ─── Header — ハンバーガー有効化 ─── */
  /* backdrop-filter は fixed 子要素の包含ブロックを作るため、モバイルでは無効化して
     スライドインnavがビューポート全体を覆えるようにする */
  .header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255, 255, 255, 0.95);
  }
  .header.is-scrolled { background: rgba(255, 255, 255, 0.98); }

  .nav-toggle { display: flex; }
  .nav-overlay { display: block; }
  .header__inner { padding-inline: 20px; gap: 12px; }
  .header__cta { display: none; }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 80%;
    max-width: 360px;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 96px 28px 32px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 50;
    overflow-y: auto;
    box-shadow: -16px 0 40px -16px rgba(11, 27, 59, 0.18);
  }

  .nav.is-open { transform: translateX(0); }

  .nav__link {
    font-size: 16px;
    font-weight: 600;
    padding: 18px 4px;
    border-bottom: 1px solid rgba(11, 27, 59, 0.06);
  }

  .nav__cta {
    display: inline-flex;
    margin-top: 24px;
    justify-content: center;
  }

  /* ─── Hero ─── */
  .hero { padding-top: 64px; padding-bottom: 64px; }
  .hero__inner {
    gap: 48px;
    padding-inline: 32px;
  }
  .hero__title { font-size: 44px; line-height: 1.3; }
  .hero__lead { font-size: 16px; }
  .hero__metrics-card { padding: 24px; }
  .hero__metrics-grid { gap: 12px; }
  .number-stat__value { font-size: 48px; }
  .number-stat__label { font-size: 11px; }
  .number-stat__sublabel { font-size: 11px; }
  /* index.html用: hero--image */
  .hero--image { min-height: 480px; }
  .hero__bg-image { background-position: center; }
  .hero__decor-logo { width: 220px; }

  /* ─── TrustBar ─── */
  .trust-bar__inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-inline: 32px;
  }
  .trust-bar__powered {
    border-right: none;
    padding-right: 0;
    border-bottom: 1px solid rgba(11, 27, 59, 0.1);
    padding-bottom: 16px;
  }

  /* ─── Context ─── */
  .context__grid { grid-template-columns: 1fr; gap: 16px; }

  /* ─── Problem ─── */
  .problem__row {
    grid-template-columns: 1fr;
    gap: 16px;
    text-align: left;
  }
  .problem__arrow {
    transform: rotate(90deg);
    justify-self: start;
    margin-left: 8px;
  }
  .problem__cta {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 28px;
  }
  /* index_v2.html用: 吹き出し1列 + 男性画像縮小 */
  .problem__bubbles {
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 480px;
    margin-inline: auto;
  }
  .problem__man { margin-top: 40px; }
  .problem__man img { max-width: 280px; }

  /* ─── About ─── */
  .about { padding-top: 80px; padding-bottom: 80px; }
  .about__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .about__visual-card {
    bottom: -16px;
    right: -8px;
    min-width: 180px;
    padding: 16px;
  }

  /* ─── Strength ─── */
  .strength-card {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px;
  }
  .strength-card__head {
    display: flex;
    align-items: baseline;
    gap: 16px;
  }
  .strength-card__no { font-size: 48px; }
  .strength-card__tag { margin-top: 0; }
  .strength-card__title { font-size: 26px; }
  .strength-card__headline { font-size: 18px; }
  .strength-card__stat {
    border-left: none;
    border-top: 1px solid rgba(11, 27, 59, 0.08);
    padding-left: 0;
    padding-top: 24px;
  }
  .strength-card__stat-value { font-size: 44px; }

  /* ─── Product ─── */
  .product { padding-top: 80px; padding-bottom: 80px; }
  .product__nav { padding: 24px; }
  .product__nav-grid { grid-template-columns: repeat(2, 1fr); }
  .product__cards { grid-template-columns: 1fr; gap: 20px; }
  .product-card { padding: 24px; }

  /* ─── AI Division ─── */
  .ai-division { padding-top: 80px; padding-bottom: 80px; }
  .ai-division__grid {
    grid-template-columns: 1fr;
    gap: 64px;
  }
  .ai-division__center {
    position: static;
    transform: none;
    margin: -32px auto;
    grid-row: 2;
    z-index: 2;
  }
  .ai-division__card { padding: 28px; }

  /* ─── Process ─── */
  .process { padding-top: 80px; padding-bottom: 80px; }
  .process__line { display: none; }
  .process__steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  /* ─── Pricing ─── */
  .pricing { padding-top: 80px; padding-bottom: 80px; }
  .pricing__cards { grid-template-columns: repeat(2, 1fr); }
  .pricing-card { padding: 24px; }
  .pricing-card__avg-value { font-size: 32px; }
  .compare__head, .compare__row {
    padding: 16px 20px;
    grid-template-columns: 1fr 1fr 1fr;
    font-size: 13px;
  }
  .compare__cell, .compare__cell-item { font-size: 13px; }
  .compare__title { font-size: 20px; }

  /* ─── Why Us ─── */
  .why-us { padding-top: 80px; padding-bottom: 80px; }
  .why-us__list { grid-template-columns: 1fr; gap: 16px; }
  .why-us__list-wide { grid-column: auto; }
  .why-us-card { padding: 24px; }

  /* ─── How To Start ─── */
  .how-to-start { padding-top: 80px; padding-bottom: 80px; }
  .how-to-step {
    grid-template-columns: 100px 1fr;
    gap: 16px;
    padding: 20px 16px;
  }
  .how-to-step__time {
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: 4px;
  }
  .how-to-step__no { font-size: 28px; }

  /* ─── FAQ ─── */
  .faq { padding-top: 80px; padding-bottom: 80px; }
  .faq-item__btn {
    padding: 18px 20px;
    grid-template-columns: auto 1fr auto;
    gap: 14px;
  }
  .faq-item__q { font-size: 14px; }
  .faq-item__q-num { font-size: 16px; width: 24px; }
  .faq-item__a {
    padding: 18px 20px 20px 56px;
    font-size: 13px;
  }

  /* ─── Final CTA ─── */
  .final-cta { padding: 80px 0; }
  .final-cta__inner { padding-inline: 32px; }
  .final-cta__title { font-size: 40px; }
  .final-cta__desc { font-size: 15px; }

  /* ─── Footer ─── */
  .footer__inner { padding-inline: 32px; }
  .footer__top {
    flex-direction: column;
    gap: 24px;
  }
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — MOBILE (≤ 640px)
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 640px) {
  /* ─── Common ─── */
  .section { padding-top: 60px; padding-bottom: 60px; }
  .section__inner { padding-inline: 20px; }
  .section-title { font-size: 26px; line-height: 1.35; }
  .section-subtitle { font-size: 14px; line-height: 1.7; }
  .eyebrow { font-size: 11px; }

  /* ─── Header ─── */
  .header__inner { height: 64px; padding-inline: 16px; }
  .logo-mark__name { font-size: 15px; }
  .logo-mark__tagline { font-size: 8px; }
  /* index_v2.html用: ロゴimgをモバイルでさらに縮小 */
  .logo-mark img { height: 28px; }

  .nav { padding: 80px 24px 24px; }

  /* ─── Hero ─── */
  .hero { padding-top: 40px; padding-bottom: 48px; }
  .hero__inner { padding-inline: 20px; gap: 40px; }
  .hero__title { font-size: 32px; line-height: 1.3; }
  .hero__highlight-mark { height: 10px; bottom: 2px; }
  .hero__lead { font-size: 14px; line-height: 1.85; }
  .hero__badge { font-size: 11px; padding: 6px 12px; margin-bottom: 20px; }
  .hero__actions { gap: 10px; }
  .hero__actions .btn { flex: 1 1 100%; justify-content: center; }
  .hero__notes { font-size: 11px; gap: 12px; }
  /* index.html用: hero--image (モバイル) */
  .hero--image { min-height: 420px; }
  .hero__decor-logo { width: 140px; align-self: center; }
  .hero__metrics-card { padding: 20px; border-radius: 16px; }
  .hero__metrics-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-top: 20px;
  }
  .number-stat__value { font-size: 40px; }

  /* ─── TrustBar ─── */
  .trust-bar__inner { padding-inline: 20px; }
  .trust-bar__logos { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .trust-bar__logo { font-size: 9px; }

  /* ─── Context ─── */
  .context__grid { margin-top: 40px; }
  .context-card { padding: 24px; }
  .context-card__num { font-size: 28px; }
  .context-card__num--small { font-size: 20px; }

  /* ─── Problem ─── */
  .problem__list { margin-top: 32px; }
  .problem__row { padding: 20px 0; gap: 12px; }
  .problem__challenge p { font-size: 15px; }
  .problem__answer-box p { font-size: 14px; }
  .problem__cta {
    margin-top: 32px;
    padding: 20px 24px;
    border-radius: 12px;
  }
  .problem__cta-title { font-size: 18px; }
  /* index_v2.html用: 吹き出し + 男性画像 */
  .problem__bubbles { margin-top: 32px; gap: 16px; }
  .problem-bubble { padding: 22px 22px 24px; border-radius: 16px; }
  .problem-bubble p { font-size: 15px; }
  .problem__man img { max-width: 220px; }

  /* ─── About ─── */
  .about__inner { gap: 56px; }
  .about__visual-card {
    position: static;
    margin-top: 16px;
    box-shadow: none;
    min-width: 0;
  }
  .about__text { font-size: 14px; }
  .about__feature { font-size: 13px; }

  /* ─── Strength ─── */
  .strength__list { margin-top: 40px; gap: 16px; }
  .strength-card { padding: 24px; gap: 20px; }
  .strength-card__no { font-size: 40px; }
  .strength-card__title { font-size: 22px; }
  .strength-card__headline { font-size: 16px; }
  .strength-card__desc { font-size: 13px; }
  .strength-card__stat-value { font-size: 36px; }

  /* ─── Product ─── */
  .product__nav { padding: 20px; margin-top: 32px; }
  .product__nav-grid { grid-template-columns: 1fr; gap: 10px; }
  .product__nav-title { font-size: 14px; }
  .product__cards { margin-top: 32px; }
  .product-card__media--coming-soon { width: 100%; }
  .product-card__title { font-size: 22px; }
  .product-card__metrics {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  /* ─── AI Division ─── */
  .ai-division__grid { margin-top: 40px; gap: 48px; }
  .ai-division__card { padding: 24px; }
  .ai-division__card-title { font-size: 18px; }
  .ai-division__center { width: 56px; height: 56px; font-size: 20px; }

  /* ─── Process ─── */
  .process__steps-wrapper { margin-top: 48px; }
  .process__steps { grid-template-columns: 1fr; gap: 32px; }

  /* ─── Pricing ─── */
  .pricing__cards { grid-template-columns: 1fr; }
  .pricing-card__avg-value { font-size: 30px; }

  /* ─── Compare Table → カード形式 ─── */
  .compare__head { display: none; }
  .compare__table {
    background: transparent;
    border: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .compare__row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 16px 18px;
    border: 1px solid rgba(11, 27, 59, 0.08);
    border-top: 1px solid rgba(11, 27, 59, 0.08);
    border-radius: 12px;
    background: #fff;
  }
  .compare__row.is-win { background: rgba(59, 130, 246, 0.04); }
  .compare__cell-item {
    font-size: 12px;
    letter-spacing: 0.16em;
    color: rgba(11, 27, 59, 0.5);
    text-transform: uppercase;
    font-family: var(--font-en);
    margin-bottom: 4px;
  }
  .compare__cell {
    font-size: 14px;
    padding: 6px 0;
  }
  .compare__cell--us::before {
    content: 'ビジアニAI';
    display: inline-block;
    width: 88px;
    flex-shrink: 0;
    font-size: 11px;
    color: rgba(11, 27, 59, 0.5);
    font-family: var(--font-en);
    letter-spacing: 0.1em;
  }
  .compare__cell--them::before {
    content: '従来';
    display: inline-block;
    width: 88px;
    flex-shrink: 0;
    font-size: 11px;
    color: rgba(11, 27, 59, 0.5);
    font-family: var(--font-en);
    letter-spacing: 0.1em;
  }
  .compare__title { font-size: 18px; }

  /* ─── Why Us ─── */
  .why-us-card { padding: 20px; gap: 16px; }
  .why-us-card__no { font-size: 36px; }
  .why-us-card__title { font-size: 16px; }

  /* ─── How To Start ─── */
  .how-to-step {
    grid-template-columns: 80px 1fr;
    padding: 16px 12px;
    gap: 12px;
  }
  .how-to-step__no { font-size: 24px; }
  .how-to-step__title { font-size: 16px; }

  /* ─── FAQ ─── */
  .faq-item__btn {
    padding: 16px 16px;
    gap: 10px;
  }
  .faq-item__q { font-size: 13px; line-height: 1.5; }
  .faq-item__a {
    padding: 14px 16px 16px 48px;
    font-size: 13px;
  }
  .faq-item.is-open .faq-item__panel { max-height: 600px; }

  /* ─── Final CTA ─── */
  .final-cta { padding: 60px 0; }
  .final-cta__inner { padding-inline: 20px; }
  .final-cta__title { font-size: 28px; line-height: 1.4; }
  .final-cta__desc { font-size: 14px; }
  .final-cta__notes { font-size: 11px; gap: 14px; }

  /* ─── Footer ─── */
  .footer__inner { padding-inline: 20px; }

  /* ─── Floating CTA ─── */
  .floating-cta { bottom: 16px; right: 16px; left: 16px; }
  .floating-cta__btn { width: 100%; justify-content: center; }
}

/* ───────── Privacy Policy ───────── */
.privacy .section-title {
  font-size: 32px;
  line-height: 1.5;
}

.privacy__body {
  margin-top: 56px;
  max-width: 880px;
  font-family: var(--font-jp);
  color: var(--ink);
  font-size: 15px;
  line-height: 2;
}

.privacy__body p {
  text-wrap: pretty;
}

.privacy__lead {
  padding: 24px 28px;
  background: var(--secondary-light);
  border-left: 3px solid var(--secondary);
  border-radius: 4px;
  margin-bottom: 48px;
}

.privacy__section {
  margin-top: 40px;
  scroll-margin-top: 100px;
}

.privacy__section:first-of-type {
  margin-top: 0;
}

.privacy__heading {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.02em;
  line-height: 1.5;
}

.privacy__list {
  margin-top: 12px;
  padding-left: 0;
  list-style: none;
}

ol.privacy__list {
  counter-reset: privacy-counter;
}

ol.privacy__list > li {
  counter-increment: privacy-counter;
  padding-left: 32px;
  position: relative;
  margin-top: 6px;
}

ol.privacy__list > li::before {
  content: counter(privacy-counter) ".";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--secondary);
  font-weight: 600;
  font-family: var(--font-en);
}

ul.privacy__list > li {
  padding-left: 22px;
  position: relative;
  margin-top: 6px;
}

ul.privacy__list > li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--secondary);
}

.privacy__defs {
  margin-top: 16px;
  padding: 20px 24px;
  background: var(--surface);
  border-radius: 8px;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 10px 24px;
  align-items: baseline;
}

.privacy__defs > dt {
  font-weight: 600;
  color: var(--ink-mute);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.privacy__defs > dd {
  margin: 0;
  color: var(--ink);
}

.privacy__signoff {
  margin-top: 32px;
  text-align: right;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.9;
}

@media (max-width: 1024px) {
  .privacy .section-title { font-size: 26px; }
  .privacy__body { font-size: 14.5px; line-height: 1.95; margin-top: 40px; }
  .privacy__section { margin-top: 36px; }
  .privacy__heading { font-size: 18px; }
}

@media (max-width: 640px) {
  .privacy .section-title { font-size: 22px; line-height: 1.45; }
  .privacy__body { font-size: 14px; line-height: 1.9; margin-top: 32px; }
  .privacy__lead { padding: 18px 18px; margin-bottom: 32px; font-size: 13.5px; }
  .privacy__section { margin-top: 32px; }
  .privacy__heading { font-size: 17px; margin-bottom: 12px; padding-bottom: 10px; }
  .privacy__defs {
    grid-template-columns: 1fr;
    padding: 16px 18px;
    gap: 4px 0;
  }
  .privacy__defs > dt { margin-top: 8px; }
  .privacy__defs > dt:first-of-type { margin-top: 0; }
  .privacy__signoff { text-align: left; margin-top: 24px; }
}