/* ========================================
   RESET & BASE
======================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: #070B15;
  color: #F0EDE6;
  font-family: 'Inter', 'Hiragino Sans', 'Yu Gothic', sans-serif;
  font-weight: 300;
  line-height: 1.8;
  overflow-x: hidden;
}

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

/* ========================================
   CSS VARIABLES
======================================== */
:root {
  --gold:        #D4B64C;
  --gold-dim:    rgba(212, 182, 76, 0.15);
  --gold-border: rgba(212, 182, 76, 0.35);
  --bg:          #070B15;
  --bg-card:     #0D1220;
  --bg-card2:    #0A0F1C;
  --white:       #F0EDE6;
  --gray:        #8A8FA0;
  --gray-light:  #C2C5CC;

  --font-serif:  'Cormorant Garamond', 'Georgia', serif;
  --font-sans:   'Inter', 'Hiragino Sans', sans-serif;

  --container:   1160px;
  --radius:      4px;
  --transition:  0.35s ease;
}

/* ========================================
   UTILITY
======================================== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}

.pc-only { display: inline; }

/* ========================================
   FADE-IN ANIMATION（スクロール連動）
======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}
.fade-in--delay  { transition-delay: 0.15s; }
.fade-in--delay2 { transition-delay: 0.30s; }

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

/* ========================================
   SECTION COMMON
======================================== */
.section {
  padding: clamp(5rem, 10vw, 9rem) 0;
  position: relative;
}

.section__header {
  text-align: center;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.section__label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--gold);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.section__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--white);
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

.section__divider {
  width: 48px;
  height: 1px;
  background: var(--gold);
  margin: 0 auto;
}

/* ========================================
   BUTTONS
======================================== */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.85rem 2.2rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: var(--gold);
  color: #07090F;
  border: 1px solid var(--gold);
}
.btn--primary:hover {
  background: #e8ca6a;
  border-color: #e8ca6a;
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--gold-border);
}
.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn--large {
  font-size: 0.85rem;
  padding: 1.1rem 3rem;
}

/* ========================================
   HEADER
======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  /* 初期は透明、スクロールでJS側がクラス付与 */
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}

.header.is-scrolled {
  background: rgba(7, 11, 21, 0.92);
  border-bottom-color: var(--gold-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ロゴ */
.header__logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--white);
  transition: color var(--transition);
}
.header__logo:hover { color: var(--gold); }

/* ナビリスト */
.header__nav-list {
  display: flex;
  gap: 2.8rem;
}

.header__nav-link {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--gray-light);
  position: relative;
  padding-bottom: 4px;
  transition: color var(--transition);
}
.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width var(--transition);
}
.header__nav-link:hover,
.header__nav-link.is-active {
  color: var(--gold);
}
.header__nav-link:hover::after,
.header__nav-link.is-active::after {
  width: 100%;
}

/* ヘッダー内アクションボタン群（無料相談・資料請求） */
.header__nav {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}
.header__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.header__btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform 0.2s ease;
  white-space: nowrap;
  line-height: 1;
}
.header__btn:hover { transform: translateY(-1px); }
.header__btn--primary {
  background: var(--gold);
  color: #07090F;
  border: 1px solid var(--gold);
}
.header__btn--primary:hover {
  background: #e8ca6a;
  border-color: #e8ca6a;
}
.header__btn--outline {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--gold-border);
}
.header__btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* 資料請求準備中の通知バー */
.header__notice {
  background: rgba(7, 11, 21, 0.96);
  border-top: 1px solid var(--gold-border);
  border-bottom: 1px solid var(--gold-border);
}
.header__notice[hidden] { display: none; }
.header__notice-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.6rem clamp(1.5rem, 5vw, 4rem);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--gold);
  text-align: center;
}

/* ハンバーガー（スマホ用） */
.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}
.header__hamburger span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--white);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ハンバーガーOPEN状態 */
.header__hamburger.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.header__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.header__hamburger.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ========================================
   HEADER — MOBILE DRAWER
   (max-width: 768px)
======================================== */
@media (max-width: 768px) {
  .pc-only { display: none; }

  .header__hamburger { display: flex; }

  /* ナビをオフキャンバスに */
  .header__nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 78vw;
    max-width: 340px;
    background: rgba(7, 11, 21, 0.97);
    border-left: 1px solid var(--gold-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.8rem;
    transform: translateX(100%);
    transition: transform 0.4s ease;
    z-index: 105;
    padding: 4.5rem 1.5rem 2.5rem;
  }
  .header__nav.is-open {
    transform: translateX(0);
  }

  /* ナビリストを縦並びに */
  .header__nav-list {
    flex-direction: column;
    gap: 1.8rem;
    text-align: center;
  }

  .header__nav-link {
    font-size: 0.9rem;
    letter-spacing: 0.22em;
  }

  /* ドロワー内の無料相談・資料請求ボタン */
  .header__actions {
    flex-direction: column;
    width: 100%;
    gap: 0.8rem;
    padding: 0 0.5rem;
  }
  .header__btn {
    width: 100%;
    text-align: center;
    padding: 0.85rem 1rem;
    font-size: 0.78rem;
  }

  .header__notice-inner { font-size: 0.74rem; }
}

/* オーバーレイ（JS が body に追加） */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 104;
  cursor: pointer;
}
.nav-overlay.is-visible {
  display: block;
}

/* ========================================
   FOOTER（共通）
======================================== */
.footer {
  background: #040711;
  border-top: 1px solid var(--gold-border);
  padding: 2.5rem 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer__brand { display: flex; flex-direction: column; gap: 0.3rem; }
.footer__name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0.1em;
}
.footer__role {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
}
.footer__nav { display: flex; gap: 2rem; flex-wrap: wrap; }
.footer__link {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--gray);
  transition: color var(--transition);
}
.footer__link:hover { color: var(--gold); }
.footer__copy {
  font-size: 0.7rem;
  color: var(--gray);
  letter-spacing: 0.08em;
}

/* ========================================
   ① FV SECTION
======================================== */
.fv {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}
.fv__bg-circle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.fv__bg-circle--1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(212,182,76,0.06) 0%, transparent 70%);
  top: -100px; right: -100px;
}
.fv__bg-circle--2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(100,140,255,0.04) 0%, transparent 70%);
  bottom: 0; left: 5%;
}
.fv__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(3rem, 8vw, 6rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
}
.fv__content { max-width: 780px; }
.fv__label {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--gold);
  border: 1px solid var(--gold-border);
  padding: 0.4rem 1rem;
  border-radius: 2px;
  margin-bottom: 2rem;
  text-transform: uppercase;
}
.fv__title {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  font-weight: 400;
  color: var(--white);
  line-height: 1.45;
  letter-spacing: 0.04em;
  margin-bottom: 2rem;
}
.fv__title-accent {
  background: linear-gradient(135deg, #F0EDE6 0%, #D4B64C 60%, #F0EDE6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}
.fv__sub {
  font-size: 0.92rem;
  color: var(--gray-light);
  line-height: 1.9;
  max-width: 700px;
  margin-bottom: 2.6rem;
}
.fv__proof {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin: 0 0 2.4rem;
  max-width: 720px;
}
.fv__proof-item {
  background: rgba(212,182,76,0.05);
  border: 1px solid var(--gold-border);
  border-left: 2px solid var(--gold);
  border-radius: var(--radius);
  padding: 0.9rem 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: border-color var(--transition), transform 0.2s ease;
}
.fv__proof-item:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}
.fv__proof-num {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.02em;
  line-height: 1.1;
}
.fv__proof-unit {
  font-size: 0.9rem;
  margin-left: 0.1em;
}
.fv__proof-label {
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--gray-light);
  line-height: 1.55;
}
@media (max-width: 768px) {
  .fv__proof {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.7rem;
  }
  .fv__proof-num { font-size: 1.35rem; }
}

.fv__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.fv__scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}
.fv__scroll-hint span {
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  color: var(--gray);
}
.fv__scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollDrop 2s ease-in-out infinite;
}
@keyframes scrollDrop {
  0%   { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50%  { opacity: 1; transform: scaleY(1); }
  100% { opacity: 0; transform: scaleY(1); }
}

@media (max-width: 768px) {
  .fv__cta { flex-direction: column; align-items: stretch; }
  .fv__cta .btn { width: 100%; text-align: center; }
}

/* ========================================
   ② CHALLENGES SECTION
======================================== */
.challenges { background: var(--bg); }
.challenges__lead {
  text-align: center;
  font-size: 0.95rem;
  color: var(--gray-light);
  line-height: 1.9;
  max-width: 760px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
}
.challenges__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem 1.5rem;
  max-width: 960px;
  margin: 0 auto;
}
.challenges__item {
  position: relative;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-left: 3px solid var(--gold);
  padding: 1.1rem 1.4rem 1.1rem 1.6rem;
  font-size: 0.92rem;
  color: var(--gray-light);
  border-radius: var(--radius);
  transition: border-color var(--transition), transform var(--transition);
}
.challenges__item:hover {
  border-left-color: #e8ca6a;
  transform: translateX(4px);
}
.challenges__footnote {
  text-align: center;
  font-size: 0.85rem;
  color: var(--gold);
  margin-top: 2.5rem;
  letter-spacing: 0.04em;
}
@media (max-width: 768px) {
  .challenges__list { grid-template-columns: 1fr; }
}

/* ========================================
   ③ SERVICE-LINES SECTION（3カード一覧）
======================================== */
.service-lines { background: linear-gradient(180deg, #070B15 0%, #0A0F1C 100%); }
.service-lines__lead {
  text-align: center;
  font-size: 0.95rem;
  color: var(--gray-light);
  line-height: 1.9;
  max-width: 760px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
}
.service-lines__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.service-line-card {
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius);
  padding: clamp(2rem, 3vw, 2.6rem);
  position: relative;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.service-line-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.service-line-card:hover {
  border-color: rgba(212,182,76,0.6);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.service-line-card:hover::after { opacity: 1; }
.service-line-card__number {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 300;
  color: rgba(212,182,76,0.2);
  line-height: 1;
  margin-bottom: 0.9rem;
  display: block;
}
.service-line-card__title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.04em;
  margin-bottom: 0.8rem;
  line-height: 1.5;
}
.service-line-card__divider {
  width: 28px; height: 1px;
  background: var(--gold);
  margin-bottom: 1.1rem;
}
.service-line-card__text {
  font-size: 0.88rem;
  color: var(--gray-light);
  line-height: 1.85;
  margin-bottom: 1.4rem;
  flex: 1;
}
.service-line-card__meta {
  font-size: 0.78rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 1.3rem;
}
.service-line-card__meta-label {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}
.service-line-card__link {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  font-weight: 500;
  transition: color var(--transition), letter-spacing var(--transition);
}
.service-line-card__link:hover {
  color: #e8ca6a;
  letter-spacing: 0.18em;
}
@media (max-width: 1024px) {
  .service-lines__grid { grid-template-columns: 1fr; max-width: 600px; margin: 0 auto; }
}

/* ========================================
   ④ SERVICE-LINE DETAIL SECTIONS
======================================== */
.service-line { background: var(--bg); }
.service-line:nth-of-type(even) { background: var(--bg-card2); }
.service-line__header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.service-line__num {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--gold);
  margin-bottom: 1rem;
  text-transform: uppercase;
}
.service-line__title {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0.04em;
  margin-bottom: 0.8rem;
  line-height: 1.4;
}
.service-line__subtitle {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--gold);
  letter-spacing: 0.06em;
  margin-bottom: 1.2rem;
}
.service-line__lead {
  text-align: center;
  font-size: 0.92rem;
  color: var(--gray-light);
  line-height: 1.9;
  max-width: 820px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
}
.service-line__items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 1000px;
  margin: 0 auto;
}
.service-line__items--three { grid-template-columns: repeat(3, 1fr); }
.service-item {
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius);
  padding: clamp(1.8rem, 3vw, 2.4rem);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.service-item:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
}
/* クリック可能な実績アイテム */
.service-item--link {
  display: block;
  color: inherit;
  cursor: pointer;
  position: relative;
}
.service-item--link:hover {
  box-shadow: 0 18px 50px rgba(0,0,0,0.45);
}
.service-item__more {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  font-weight: 500;
  transition: letter-spacing var(--transition), color var(--transition);
}
.service-item--link:hover .service-item__more {
  letter-spacing: 0.22em;
  color: #e8ca6a;
}
.service-item__name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 1rem;
  letter-spacing: 0.03em;
}
.service-item__desc {
  font-size: 0.88rem;
  color: var(--gray-light);
  line-height: 1.9;
  margin-bottom: 1.2rem;
}
.service-item__points {
  list-style: none;
  padding: 0;
  margin: 0 0 1.2rem;
  font-size: 0.84rem;
  color: var(--gray-light);
  line-height: 1.8;
}
.service-item__points li {
  position: relative;
  padding-left: 1.1rem;
  margin-bottom: 0.4rem;
}
.service-item__points li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.7rem;
  width: 6px; height: 1px;
  background: var(--gold);
}
.service-item__target {
  font-size: 0.78rem;
  color: var(--gray);
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.service-item__target-label {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}
.service-line__cta {
  text-align: center;
  margin-top: clamp(2rem, 4vw, 3rem);
}
@media (max-width: 1024px) {
  .service-line__items,
  .service-line__items--three { grid-template-columns: 1fr; max-width: 600px; }
}

/* ========================================
   ⑤ STEPS SECTION
======================================== */
.steps { background: var(--bg-card2); }
.steps__lead {
  text-align: center;
  font-size: 0.95rem;
  color: var(--gray-light);
  line-height: 1.9;
  max-width: 760px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
}
.steps__list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  counter-reset: step;
  position: relative;
}
.steps__item {
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius);
  padding: 1.8rem 1.4rem;
  position: relative;
  transition: border-color var(--transition), transform var(--transition);
}
.steps__item:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
}
.steps__item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -0.85rem;
  width: 0.5rem;
  height: 0.5rem;
  border-top: 1px solid var(--gold);
  border-right: 1px solid var(--gold);
  transform: translateY(-50%) rotate(45deg);
}
.steps__num {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}
.steps__name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 0.7rem;
  letter-spacing: 0.03em;
}
.steps__desc {
  font-size: 0.82rem;
  color: var(--gray-light);
  line-height: 1.8;
  margin-bottom: 1rem;
  min-height: 4.5rem;
}
.steps__duration {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  border: 1px solid var(--gold-border);
  padding: 0.25rem 0.7rem;
  border-radius: 2px;
}
@media (max-width: 1024px) {
  .steps__list { grid-template-columns: repeat(2, 1fr); }
  .steps__item:not(:last-child)::after { display: none; }
}
@media (max-width: 768px) {
  .steps__list { grid-template-columns: 1fr; }
  .steps__desc { min-height: auto; }
}

/* ========================================
   ⑥ PERSONAS SECTION
======================================== */
.personas { background: var(--bg); }
.personas__lead {
  text-align: center;
  font-size: 0.95rem;
  color: var(--gray-light);
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.personas__table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.personas__table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  font-size: 0.88rem;
  min-width: 720px;
}
.personas__table thead th {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  text-align: left;
  padding: 1.2rem 1.4rem;
  background: rgba(212,182,76,0.06);
  border-bottom: 1px solid var(--gold-border);
}
.personas__table tbody th {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--white);
  text-align: left;
  padding: 1.2rem 1.4rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  white-space: nowrap;
  vertical-align: top;
}
.personas__table tbody td {
  padding: 1.2rem 1.4rem;
  color: var(--gray-light);
  line-height: 1.85;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  vertical-align: top;
}
.personas__table tbody tr:last-child th,
.personas__table tbody tr:last-child td { border-bottom: none; }
.personas__table tbody tr:hover { background: rgba(212,182,76,0.03); }
@media (max-width: 768px) {
  .personas__table-wrap::after {
    content: '← 横スクロールできます →';
    display: block;
    text-align: center;
    font-size: 0.7rem;
    color: var(--gray);
    margin-top: 0.6rem;
  }
}

/* ========================================
   ⑦ MATRIX SECTION
======================================== */
.matrix { background: var(--bg-card2); }
.matrix__lead {
  text-align: center;
  font-size: 0.92rem;
  color: var(--gray-light);
  line-height: 1.9;
  max-width: 820px;
  margin: 0 auto clamp(2.5rem, 5vw, 3.5rem);
}
.matrix__wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--gold-border);
  border-radius: var(--radius);
}
.matrix__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  min-width: 880px;
  background: var(--bg-card);
}
.matrix__table thead th {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  text-align: left;
  padding: 1rem 1.2rem;
  background: rgba(212,182,76,0.08);
  border-bottom: 1px solid var(--gold-border);
}
.matrix__table tbody th {
  font-family: var(--font-serif);
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--white);
  text-align: left;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  white-space: nowrap;
  vertical-align: middle;
}
.matrix__table tbody td {
  padding: 1rem 1.2rem;
  color: var(--gray-light);
  line-height: 1.6;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  border-left: 1px solid rgba(255,255,255,0.04);
  vertical-align: middle;
}
.matrix__table tbody tr:last-child th,
.matrix__table tbody tr:last-child td { border-bottom: none; }
.matrix__table tbody tr:hover { background: rgba(212,182,76,0.04); }

.matrix__rank {
  display: inline-block;
  width: 1.6rem;
  text-align: center;
  font-weight: 600;
  margin-right: 0.4rem;
}
.matrix__rank--high { color: var(--gold); }
.matrix__rank--mid  { color: #8FB8E8; }
.matrix__rank--low  { color: #C97A7A; }

.matrix__legend {
  text-align: center;
  font-size: 0.8rem;
  color: var(--gray-light);
  margin-top: 1.5rem;
}
.matrix__legend .matrix__rank { margin: 0 0.3rem 0 1.2rem; }

@media (max-width: 768px) {
  .matrix__wrap::after {
    content: '← 横スクロールできます →';
    display: block;
    text-align: center;
    font-size: 0.7rem;
    color: var(--gray);
    margin-top: 0.6rem;
  }
}

/* ========================================
   ⑧ CASES SECTION
======================================== */
.cases { background: var(--bg); }
.cases__lead {
  text-align: center;
  font-size: 0.95rem;
  color: var(--gray-light);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.cases__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.case-card {
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius);
  padding: clamp(1.8rem, 3vw, 2.4rem);
  position: relative;
  transition: border-color var(--transition), transform var(--transition);
}
.case-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
}
.case-card__num {
  display: inline-block;
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.case-card__title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 1rem;
  letter-spacing: 0.03em;
  line-height: 1.5;
}
.case-card__text {
  font-size: 0.88rem;
  color: var(--gray-light);
  line-height: 1.9;
}
.cases__cta {
  text-align: center;
  margin-top: clamp(2rem, 4vw, 3rem);
}
@media (max-width: 1024px) {
  .cases__grid { grid-template-columns: 1fr; }
}

/* ========================================
   ⑨ FAQ SECTION
======================================== */
.faq { background: var(--bg-card2); }
.faq__list {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.faq__item {
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq__item[open] {
  border-color: var(--gold);
}
.faq__q {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.03em;
  padding: 1.2rem 1.5rem 1.2rem 3rem;
  position: relative;
  cursor: pointer;
  list-style: none;
  transition: color var(--transition);
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::before {
  content: 'Q';
  position: absolute;
  left: 1.2rem;
  top: 1.2rem;
  font-family: var(--font-serif);
  color: var(--gold);
  font-size: 1.1rem;
}
.faq__q::after {
  content: '+';
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gold);
  font-size: 1.4rem;
  font-weight: 300;
  transition: transform var(--transition);
}
.faq__item[open] .faq__q::after {
  content: '−';
}
.faq__q:hover { color: var(--gold); }
.faq__a {
  padding: 0 1.5rem 1.4rem 3rem;
  font-size: 0.88rem;
  color: var(--gray-light);
  line-height: 1.95;
  position: relative;
}
.faq__a::before {
  content: 'A';
  position: absolute;
  left: 1.2rem;
  top: 0;
  font-family: var(--font-serif);
  color: var(--gold);
  font-size: 1.1rem;
}

/* ========================================
   ⑩ FINAL-CTA SECTION
======================================== */
.final-cta {
  background: var(--bg);
  position: relative;
  overflow: hidden;
  text-align: center;
}
.final-cta__deco {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.final-cta__deco--1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(212,182,76,0.05) 0%, transparent 70%);
  top: -100px; left: -100px;
}
.final-cta__deco--2 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(212,182,76,0.04) 0%, transparent 70%);
  bottom: -50px; right: 10%;
}
.final-cta__inner { position: relative; z-index: 1; }
.final-cta__title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0.04em;
  margin: 1rem 0 1.2rem;
  line-height: 1.5;
}
.final-cta__text {
  font-size: 0.92rem;
  color: var(--gray-light);
  line-height: 1.9;
  margin: 2rem 0 2.8rem;
}
.final-cta__options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  max-width: 1000px;
  margin: 0 auto;
  text-align: left;
}
.final-cta__card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius);
  padding: 1.8rem;
  color: var(--white);
  transition: border-color var(--transition), transform var(--transition), background var(--transition);
}
.final-cta__card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  background: rgba(212,182,76,0.04);
}
.final-cta__card--primary {
  background: var(--gold-dim);
  border-color: var(--gold);
}
.final-cta__card-label {
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.final-cta__card-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 0.7rem;
  line-height: 1.5;
  letter-spacing: 0.03em;
}
.final-cta__card-desc {
  font-size: 0.82rem;
  color: var(--gray-light);
  line-height: 1.7;
  margin-bottom: 1.2rem;
  flex: 1;
}
.final-cta__card-action {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  font-weight: 500;
}
@media (max-width: 1024px) {
  .final-cta__options { grid-template-columns: 1fr; max-width: 480px; }
}

/* ========================================
   ⑦.5 KPI PROVEN RESULTS SECTION
======================================== */
.kpi { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-card2) 100%); }
.kpi__lead {
  text-align: center;
  font-size: 0.95rem;
  color: var(--gray-light);
  line-height: 1.9;
  max-width: 820px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
}
.kpi__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.kpi__card {
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
  padding: 1.6rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  transition: border-color var(--transition), transform var(--transition);
}
.kpi__card:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
}
.kpi__metric {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--gold);
  line-height: 1.05;
  letter-spacing: 0.02em;
}
.kpi__unit {
  font-size: 1.2rem;
  margin-left: 0.1em;
}
.kpi__label {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--white);
  font-weight: 500;
  letter-spacing: 0.04em;
}
.kpi__source {
  font-size: 0.72rem;
  color: var(--gray);
  letter-spacing: 0.04em;
  margin-top: 0.3rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.kpi__footnote {
  text-align: center;
  font-size: 0.78rem;
  color: var(--gray);
  margin-top: 2rem;
  letter-spacing: 0.04em;
}
@media (max-width: 1024px) {
  .kpi__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .kpi__grid { grid-template-columns: 1fr; }
  .kpi__metric { font-size: 2rem; }
}

/* ========================================
   ⑧ CASES — リッチ版（バッジ・ポイント・リンク化）
======================================== */
.case-card__badge {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold-border);
  background: var(--gold-dim);
  padding: 0.3rem 0.65rem;
  border-radius: 2px;
  margin-bottom: 0.9rem;
}
.case-card__badge--verified {
  color: #07090F;
  background: var(--gold);
  border-color: var(--gold);
}
.case-card__badge--world {
  color: #F0EDE6;
  background: linear-gradient(90deg, #6D2E46 0%, #B85042 100%);
  border-color: #B85042;
  letter-spacing: 0.28em;
}
.case-card__points {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0.4rem;
  font-size: 0.82rem;
  color: var(--gray-light);
  line-height: 1.8;
}
.case-card__points li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.3rem;
}
.case-card__points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 6px;
  height: 1px;
  background: var(--gold);
}
.case-card--link {
  display: block;
  color: inherit;
  cursor: pointer;
  position: relative;
}
.case-card--link:hover {
  box-shadow: 0 18px 50px rgba(0,0,0,0.45);
}
.case-card__more {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  font-weight: 500;
  transition: letter-spacing var(--transition), color var(--transition);
}
.case-card--link:hover .case-card__more {
  letter-spacing: 0.22em;
  color: #e8ca6a;
}
.case-card__text strong {
  color: var(--gold);
  font-weight: 600;
}

/* ========================================
   ⑪ WORKS DETAIL PAGE
   （bigring-test 専用：実績詳細ページ）
======================================== */
.works-detail {
  background: var(--bg);
  padding: clamp(7rem, 12vw, 10rem) 0 clamp(4rem, 8vw, 7rem);
  min-height: 70vh;
}
.works-detail__back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--gray-light);
  margin-bottom: 2rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--gold-border);
  border-radius: var(--radius);
  transition: color var(--transition), border-color var(--transition), transform 0.2s ease;
}
.works-detail__back:hover {
  color: var(--gold);
  border-color: var(--gold);
  transform: translateX(-3px);
}
.works-detail__header {
  text-align: center;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.works-detail__label {
  display: inline-block;
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: var(--gold);
  border: 1px solid var(--gold-border);
  padding: 0.4rem 1rem;
  border-radius: 2px;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}
.works-detail__title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0.05em;
  line-height: 1.45;
  margin-bottom: 1.2rem;
}
.works-detail__divider {
  width: 48px;
  height: 1px;
  background: var(--gold);
  margin: 0 auto;
}
.works-detail__body {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
.works-detail__block {
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  padding: clamp(1.6rem, 3vw, 2.2rem);
  transition: border-color var(--transition);
}
.works-detail__block:hover {
  border-color: var(--gold);
}
.works-detail__block-num {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.works-detail__block-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
  line-height: 1.5;
}
.works-detail__block-text {
  font-size: 0.9rem;
  color: var(--gray-light);
  line-height: 1.95;
}
.works-detail__list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.88rem;
  color: var(--gray-light);
  line-height: 1.95;
}
.works-detail__list li {
  position: relative;
  padding-left: 1.2rem;
  margin-bottom: 0.5rem;
}
.works-detail__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.75rem;
  width: 8px;
  height: 1px;
  background: var(--gold);
}
.works-detail__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.works-detail__tech-tag {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--gold);
  border: 1px solid var(--gold-border);
  padding: 0.35rem 0.85rem;
  border-radius: 2px;
  background: var(--gold-dim);
}
.works-detail__note {
  background: rgba(255,255,255,0.03);
  border: 1px dashed rgba(212,182,76,0.4);
  border-left-width: 1px;
}
.works-detail__note .works-detail__block-title {
  color: var(--gold);
  font-size: 1rem;
}
/* WORKS DETAIL — 追加スタイル（キャプション・スコア比較・要因・5項目グリッド等） */
.works-detail__caption {
  margin-top: 1.2rem;
  font-size: 0.86rem;
  color: var(--gray-light);
  line-height: 1.8;
}
.works-detail__caption-date {
  display: inline-block;
  margin-top: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}
.works-detail__label--world {
  color: #F0EDE6;
  background: linear-gradient(90deg, #6D2E46 0%, #B85042 100%);
  border-color: #B85042;
  letter-spacing: 0.32em;
}

/* スコア比較カード（ChatGPT vs Genspark vs Gemini など） */
.works-detail__hero {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 880px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
}
.works-detail__score {
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius);
  padding: 1.6rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-align: center;
}
.works-detail__score--win {
  border-color: var(--gold);
  background: var(--gold-dim);
  position: relative;
}
.works-detail__score--win::before {
  content: 'WINNER';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: #07090F;
  background: var(--gold);
  padding: 0.25rem 0.8rem;
  border-radius: 2px;
  font-weight: 600;
}
.works-detail__score-rank {
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  color: var(--gray);
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}
.works-detail__score--win .works-detail__score-rank { color: var(--gold); }
.works-detail__score-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.04em;
}
.works-detail__score-model {
  font-size: 0.7rem;
  color: var(--gray);
  letter-spacing: 0.04em;
}
.works-detail__score-value {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 600;
  color: var(--gold);
  line-height: 1.1;
  margin: 0.3rem 0;
}
.works-detail__score-value--low { color: #C97A7A; }
.works-detail__score-unit {
  font-size: 1.3rem;
}
.works-detail__score-detail {
  font-size: 0.78rem;
  color: var(--gray-light);
  letter-spacing: 0.04em;
}
@media (max-width: 768px) {
  .works-detail__hero { grid-template-columns: 1fr; }
}

/* KEY FINDING ハイライトカード */
.works-detail__finding {
  background: linear-gradient(135deg, rgba(212,182,76,0.12) 0%, rgba(212,182,76,0.04) 100%);
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  max-width: 880px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
  text-align: center;
}
.works-detail__finding-label {
  display: inline-block;
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 0.8rem;
  border-bottom: 1px solid var(--gold-border);
  padding-bottom: 0.3rem;
}
.works-detail__finding-text {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--white);
  line-height: 1.7;
  letter-spacing: 0.03em;
  margin-bottom: 0.8rem;
}
.works-detail__finding-text strong {
  color: var(--gold);
  font-weight: 600;
}
.works-detail__finding-sub {
  font-size: 0.84rem;
  color: var(--gray-light);
  line-height: 1.8;
}

/* 3カラム比較（AIモデル別コメント等） */
.works-detail__compare {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.works-detail__compare-col {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 1.2rem;
}
.works-detail__compare-col--win {
  border-color: var(--gold);
  background: var(--gold-dim);
}
.works-detail__compare-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 0.6rem;
  letter-spacing: 0.03em;
}
.works-detail__compare-col--win .works-detail__compare-title { color: var(--gold); }
.works-detail__compare-text {
  font-size: 0.82rem;
  color: var(--gray-light);
  line-height: 1.85;
}
@media (max-width: 900px) {
  .works-detail__compare { grid-template-columns: 1fr; }
}

/* 要因リスト（factor） */
.works-detail__factor {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.works-detail__factor-item {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 1.2rem;
}
.works-detail__factor-item--key {
  border-color: var(--gold);
  background: var(--gold-dim);
}
.works-detail__factor-name {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 0.6rem;
  letter-spacing: 0.03em;
}
.works-detail__factor-item--key .works-detail__factor-name { color: var(--gold); }
.works-detail__factor-text {
  font-size: 0.82rem;
  color: var(--gray-light);
  line-height: 1.85;
}
.works-detail__factor-text strong { color: var(--gold); }
@media (max-width: 900px) {
  .works-detail__factor { grid-template-columns: 1fr; }
}

/* 3 steps（課題 → あるべき姿 → 製品開発） */
.works-detail__steps3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 960px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
}
.works-detail__steps3-item {
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
  padding: 1.4rem 1.2rem;
}
.works-detail__steps3-num {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--gold);
  font-weight: 600;
  line-height: 1;
  display: block;
  margin-bottom: 0.4rem;
}
.works-detail__steps3-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 0.6rem;
  letter-spacing: 0.03em;
}
.works-detail__steps3-text {
  font-size: 0.84rem;
  color: var(--gray-light);
  line-height: 1.85;
}
.works-detail__steps3-text strong { color: var(--gold); }
@media (max-width: 768px) {
  .works-detail__steps3 { grid-template-columns: 1fr; }
}

/* 5項目グリッド（output5） */
.works-detail__output5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.8rem;
}
.works-detail__output5-item {
  background: var(--gold-dim);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius);
  padding: 1.1rem 0.7rem;
  text-align: center;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--white);
  letter-spacing: 0.03em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}
.works-detail__output5-num {
  display: inline-flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--font-sans);
  font-size: 0.74rem;
  border-radius: 50%;
  font-weight: 600;
}
@media (max-width: 768px) {
  .works-detail__output5 { grid-template-columns: repeat(2, 1fr); }
}

/* 5軸ダッシュボード（axis5） */
.works-detail__axis5 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
}
.works-detail__axis5-item {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.08);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  display: grid;
  grid-template-columns: 60px 1fr;
  align-items: start;
  gap: 1rem;
}
.works-detail__axis5-num {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--gold);
  font-weight: 600;
  line-height: 1;
}
.works-detail__axis5-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--white);
  margin-bottom: 0.5rem;
  letter-spacing: 0.03em;
}
.works-detail__axis5-text {
  font-size: 0.86rem;
  color: var(--gray-light);
  line-height: 1.9;
}
.works-detail__axis5-text strong { color: var(--gold); }
@media (max-width: 600px) {
  .works-detail__axis5-item { grid-template-columns: 1fr; gap: 0.4rem; }
}

.works-detail__footer {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: clamp(2.5rem, 5vw, 4rem);
}
.works-detail__home-btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 1rem 2.4rem;
  border-radius: var(--radius);
  background: var(--gold);
  color: #07090F;
  border: 1px solid var(--gold);
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform 0.2s ease;
}
.works-detail__home-btn:hover {
  background: #e8ca6a;
  transform: translateY(-2px);
}
.works-detail__home-btn--mail {
  background: var(--gold);
  color: #07090F;
  border-color: var(--gold);
}
.works-detail__home-btn--outline {
  background: transparent;
  color: var(--white);
  border-color: var(--gold-border);
}
.works-detail__home-btn--outline:hover {
  background: rgba(212,182,76,0.06);
  border-color: var(--gold);
  color: var(--gold);
}
@media (max-width: 768px) {
  .works-detail__back { font-size: 0.7rem; }
  .works-detail__home-btn { width: 100%; text-align: center; }
  .works-detail__footer { padding: 0 0.5rem; }
}