/* ===========================
   AIシズルラボ Design System
   =========================== */

/* --- CSS Variables --- */
:root {
  --white:      #FFFFFF;
  --black:      #111111;
  --gold:       #C8A95A;
  --orange:     #F28C28;
  --gray:       #777777;
  --light-gray: #F0F4F8;
  --dark-bg:    #0A1628;
  --story-bg:   #0D1E40;
  --navy:       #0D1B3E;
  --navy-dark:  #06101F;

  --font-jp: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-en: 'Inter', sans-serif;

  --max-w: 1200px;
  --content-w: 960px;

  --ease: cubic-bezier(.16, 1, .3, 1);
  --transition: .3s var(--ease);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-jp);
  color: var(--black);
  background: var(--white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* --- Container --- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}

/* --- Section --- */
.section { padding: 120px 0; }
.section--gray { background: var(--light-gray); }
.section--dark { background: var(--dark-bg); }
.section--wave-bg {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #06101F 0%, #0D1B3E 45%, #071528 100%) !important;
}
.section-wave-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .55;
  pointer-events: none;
}
.section--story { background: var(--story-bg); }
.section--contact { background: var(--navy); }

.section__head { text-align: center; margin-bottom: 72px; }

.label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 4px 14px;
  border-radius: 2px;
  margin-bottom: 20px;
}
.label--light { color: var(--gold); border-color: var(--gold); }
.label--gold  { color: var(--gold); border-color: var(--gold); }

.section__title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -.01em;
}
.section__title--light { color: var(--white); }

.section__desc {
  margin-top: 20px;
  color: var(--gray);
  font-size: 17px;
  line-height: 1.9;
}
.section__desc--light { color: #888; }

.section__cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 56px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: 15px;
  padding: 14px 32px;
  border-radius: 4px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}
.btn--primary:hover {
  background: #2a2a2a;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.18);
}
.btn--secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.4);
}
.btn--secondary:hover {
  border-color: var(--white);
  background: rgba(255,255,255,.08);
}
.btn--outline {
  background: transparent;
  color: var(--black);
  border-color: var(--black);
}
.btn--outline:hover {
  background: var(--black);
  color: var(--white);
}
.btn--sm { font-size: 13px; padding: 10px 20px; }
.btn--lg { font-size: 16px; padding: 18px 40px; }
.btn--full { width: 100%; }
.btn--line {
  background: #06c755;
  color: var(--white);
  border-color: #06c755;
  width: 100%;
  margin-top: 8px;
}
.btn--line:hover { background: #05b34c; border-color: #05b34c; }
.btn--zoom {
  background: #2d8cff;
  color: var(--white);
  border-color: #2d8cff;
  width: 100%;
  margin-top: 8px;
}
.btn--zoom:hover { background: #1a7aee; border-color: #1a7aee; }

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   HEADER
   =========================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  transition: background var(--transition), box-shadow var(--transition);
}
.header.scrolled {
  background: rgba(255,255,255,.97);
  box-shadow: 0 1px 0 rgba(0,0,0,.08);
  backdrop-filter: blur(12px);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 20px 40px;
}
.logo { display: flex; flex-direction: column; }
.logo__main {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 900;
  color: var(--black);
  letter-spacing: -.02em;
  line-height: 1;
}
.logo__sub {
  font-size: 10px;
  color: var(--gray);
  letter-spacing: .1em;
}
.nav { display: flex; align-items: center; gap: 40px; }
.nav__list { display: flex; gap: 32px; }
.nav__link {
  font-size: 13px;
  font-weight: 600;
  color: var(--black);
  letter-spacing: .04em;
  transition: color var(--transition);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav__link:hover { color: var(--gold); }
.nav__link:hover::after { transform: scaleX(1); }
.nav__cta { font-size: 13px; padding: 10px 22px; }

/* SNS icons - header */
.nav__sns {
  display: flex;
  align-items: center;
  gap: 14px;
}
.nav__sns-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  color: rgba(255,255,255,.65);
  transition: color var(--transition), transform var(--transition);
}
.nav__sns-link svg { width: 16px; height: 16px; }
.nav__sns-link:hover { color: var(--gold); transform: translateY(-2px); }
.header.scrolled .nav__sns-link { color: rgba(17,17,17,.45); }
.header.scrolled .nav__sns-link:hover { color: var(--gold); }

/* SNS icons - footer */
.footer__sns {
  display: flex;
  align-items: center;
  gap: 16px;
}
.footer__sns-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 50%;
  color: rgba(255,255,255,.4);
  transition: color var(--transition), border-color var(--transition), transform var(--transition);
}
.footer__sns-link svg { width: 15px; height: 15px; }
.footer__sns-link:hover {
  color: var(--gold);
  border-color: var(--gold);
  transform: translateY(-2px);
}

/* ヘッダーが透明の時はリンクを白に */
.header:not(.scrolled) .nav__link { color: rgba(255,255,255,.85); }
.header:not(.scrolled) .nav__link:hover { color: var(--white); }
.header:not(.scrolled) .logo__main { color: var(--white); }
.header:not(.scrolled) .logo__sub { color: rgba(255,255,255,.5); }
.header:not(.scrolled) .nav__cta { background: var(--white); color: var(--black); border-color: var(--white); }
.header:not(.scrolled) .nav__cta:hover { background: var(--gold); border-color: var(--gold); color: var(--white); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--white);
  border-radius: 1px;
  transition: var(--transition);
}
.header.scrolled .hamburger span { background: var(--black); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===========================
   HERO
   =========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #06101F 0%, #0D1B3E 45%, #071528 100%);
}
.hero__wave-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .55;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(200,169,90,.07) 0%, transparent 70%);
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 120px 40px 80px;
}
.hero__eyebrow {
  font-family: var(--font-jp);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--gold);
  margin-bottom: 28px;
}
.hero__title {
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 900;
  line-height: 1.3;
  color: var(--white);
  letter-spacing: -.02em;
  margin-bottom: 28px;
}
.hero__title--accent {
  color: var(--gold);
  display: block;
  white-space: nowrap;
}
.hero__desc {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,.6);
  line-height: 2;
  margin-bottom: 48px;
}
.hero__cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.hero__scroll {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.hero__scroll span {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, rgba(200,169,90,.6));
  margin: 0 auto;
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===========================
   経営課題
   =========================== */
.problems {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  margin-bottom: 80px;
}
.problem__item {
  background: var(--light-gray);
  padding: 40px 24px;
  text-align: center;
  transition: background var(--transition);
}
.problem__item:hover { background: #ededec; }
.problem__num {
  display: block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
  color: var(--gold);
  margin-bottom: 16px;
}
.problem__text {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.8;
  color: var(--black);
}

.problem__solution {
  text-align: center;
  padding: 64px 40px;
  background: var(--navy);
  border-radius: 4px;
}
.problem__label {
  font-size: 15px;
  color: rgba(255,255,255,.6);
  margin-bottom: 16px;
}
.problem__answer {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 900;
  color: var(--gold);
  margin-bottom: 24px;
  letter-spacing: -.01em;
}
.problem__desc {
  font-size: 15px;
  color: rgba(255,255,255,.55);
  line-height: 2;
}

/* ===========================
   信頼構築6ステップ®
   =========================== */
.steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 2px;
  margin-bottom: 48px;
}
.step {
  position: relative;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  padding: 32px 20px;
  text-align: center;
  transition: background var(--transition), border-color var(--transition);
}
/* ステップごとにグラデーション背景（白→クリームゴールド） */
.step:nth-child(1) { background: #ffffff; border-color: rgba(200,169,90,.20); }
.step:nth-child(2) { background: #fdfcf8; border-color: rgba(200,169,90,.28); }
.step:nth-child(3) { background: #faf8f0; border-color: rgba(200,169,90,.36); }
.step:nth-child(4) { background: #f7f3e6; border-color: rgba(200,169,90,.45); }
.step:nth-child(5) { background: #f3edda; border-color: rgba(200,169,90,.55); }
.step:nth-child(6) { background: #ede4c8; border-color: rgba(200,169,90,.70); }
.step:hover { filter: brightness(.97); }
.step__num {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
  color: rgba(13,27,62,.35);
  margin-bottom: 16px;
}
.step__num--gold { color: var(--gold); }
.step__title {
  font-size: 18px;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 12px;
}
.step__title--gold { color: #a07828; }
.step__text {
  font-size: 14px;
  color: #555;
  line-height: 1.8;
}
.step__arrow {
  position: absolute;
  top: 50%; right: -14px;
  transform: translateY(-50%);
  color: rgba(255,255,255,.2);
  font-size: 18px;
  z-index: 1;
}

.method__note {
  text-align: center;
  color: rgba(255,255,255,.4);
  font-size: 14px;
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 40px;
}

/* ===========================
   サービス
   =========================== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-bottom: 0;
}
.service-card {
  background: var(--light-gray);
  padding: 40px 32px;
  transition: background var(--transition), transform var(--transition);
  border-radius: 0;
}
.service-card:hover {
  background: var(--white);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,.08);
  z-index: 1;
  position: relative;
}
.service-card__num {
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--gold);
  margin-bottom: 16px;
}
.service-card__title {
  font-size: 20px;
  font-weight: 900;
  color: var(--black);
  margin-bottom: 14px;
  line-height: 1.4;
}
.service-card__challenge {
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(0,0,0,.08);
}
.service-card__text {
  font-size: 15px;
  color: #444;
  line-height: 1.9;
  margin-bottom: 20px;
}
.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.service-card__tags li {
  font-size: 11px;
  font-weight: 600;
  background: var(--white);
  color: var(--black);
  padding: 4px 10px;
  border: 1px solid rgba(0,0,0,.12);
  border-radius: 2px;
}

/* ===========================
   導入事例
   =========================== */
.cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0,0,0,.06);
}
.case-card__industry {
  background: var(--navy);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  padding: 10px 20px;
}
.case-card__flow { padding: 28px 24px; }
.case-card__before,
.case-card__solution,
.case-card__after { margin-bottom: 4px; }
.case-card__label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .15em;
  color: var(--gray);
  margin-bottom: 8px;
}
.case-card__label--gold { color: var(--gold); }
.case-card__label--dark { color: var(--black); }
.case-card__before p,
.case-card__solution p,
.case-card__after p { font-size: 13px; line-height: 1.8; color: #444; }
.case-card__after p { color: var(--black); font-weight: 700; }
.case-card__arrow {
  text-align: center;
  color: var(--gold);
  font-size: 18px;
  padding: 8px 0;
}

/* ===========================
   導入事例 v2
   =========================== */
.cases-v2 {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.case-v2 {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,.07);
}
.case-v2__header {
  background: var(--navy);
  padding: 28px 40px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.case-v2__tag {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 4px 12px;
  border-radius: 2px;
  white-space: nowrap;
}
.case-v2__title {
  font-size: 20px;
  font-weight: 900;
  color: var(--white);
  margin: 0;
}
.case-v2__subtitle {
  font-size: 13px;
  color: rgba(255,255,255,.45);
  margin-left: auto;
}
.case-v2__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.case-v2__flow {
  padding: 36px 40px;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-right: 1px solid rgba(0,0,0,.07);
}
.case-v2__block {
  padding: 24px;
  border-radius: 6px;
}
.case-v2__block--before {
  background: #f5f7fa;
  border-left: 3px solid #aab0bd;
}
.case-v2__block--after {
  background: #fffbf0;
  border-left: 3px solid var(--gold);
}
.case-v2__label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .2em;
  color: #888;
  margin-bottom: 10px;
}
.case-v2__label--gold { color: var(--gold); }
.case-v2__block p {
  font-size: 15px;
  line-height: 1.9;
  color: #444;
}
.case-v2__arrow {
  text-align: center;
  font-size: 20px;
  color: var(--gold);
  padding: 12px 0;
  opacity: .6;
}
.case-v2__video {
  padding: 36px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.case-v2__video-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #0a1628 0%, #0d1b3e 100%);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  border: 2px dashed rgba(200,169,90,.35);
  transition: border-color var(--transition);
}
.case-v2__video-placeholder:hover {
  border-color: var(--gold);
}
.case-v2__video-inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.case-v2__play-icon {
  font-size: 40px;
  color: var(--gold);
  opacity: .8;
  line-height: 1;
}
.case-v2__video-label {
  font-size: 14px;
  font-weight: 700;
  color: rgba(255,255,255,.8);
}
.case-v2__video-note {
  font-size: 11px;
  color: rgba(255,255,255,.3);
}
.case-v2__video-embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
}
.case-v2__video-embed iframe {
  width: 100%;
  height: 100%;
  display: block;
}

@media (max-width: 768px) {
  .case-v2__body { grid-template-columns: 1fr; }
  .case-v2__flow { border-right: none; border-bottom: 1px solid rgba(0,0,0,.07); padding: 28px 24px; }
  .case-v2__video { padding: 28px 24px; }
  .case-v2__header { padding: 20px 24px; }
  .case-v2__subtitle { margin-left: 0; width: 100%; }
}

/* ===========================
   信頼ライブラリー
   =========================== */
.library-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}
.library-grid--7 {
  grid-template-columns: repeat(4, 1fr);
  justify-items: stretch;
}
.library-card {
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 4px;
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
}
.library-card:hover {
  box-shadow: 0 12px 40px rgba(0,0,0,.1);
  transform: translateY(-4px);
}
.library-card__embed {
  flex-shrink: 0;
}
.library-card__video {
  position: relative;
  height: 180px;
  cursor: pointer;
}
.library-card__thumb {
  position: absolute;
  inset: 0;
}
.library-card__thumb--1 { background: linear-gradient(135deg, #2a1a0a, #4a2f10); }
.library-card__thumb--2 { background: linear-gradient(135deg, #0a1a2a, #103050); }
.library-card__thumb--3 { background: linear-gradient(135deg, #1a0a1a, #2f1030); }
.library-card__play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  color: rgba(255,255,255,.7);
  transition: color var(--transition);
  z-index: 1;
}
.library-card__video:hover .library-card__play { color: var(--gold); }
.library-card__embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
}
.library-card__embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  border: none;
}
.library-card__body { padding: 20px 24px; }
.library-card__tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: .1em;
  margin-bottom: 8px;
}
.library-card__name {
  font-size: 17px;
  font-weight: 900;
  margin-bottom: 8px;
}
.library-card__philosophy {
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 16px;
  font-style: italic;
}
.library__note {
  text-align: center;
  padding: 48px;
  background: var(--light-gray);
  border-radius: 4px;
}
.library__note p { font-size: 15px; color: var(--gray); margin-bottom: 20px; }

/* ===========================
   創業ストーリー
   =========================== */
.story__spline-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .4;
  pointer-events: none;
}
.story__spline-bg spline-viewer {
  width: 100%;
  height: 100%;
  display: block;
}
.section--story { position: relative; overflow: hidden; }
.story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.story__block {
  position: relative;
  padding: 48px;
  border: 1px solid rgba(255,255,255,.08);
}
.story__quote {
  position: absolute;
  top: -20px; left: 32px;
  font-size: 80px;
  color: var(--gold);
  line-height: 1;
  font-family: Georgia, serif;
  opacity: .6;
}
.story__text {
  font-size: 17px;
  line-height: 2.1;
  color: rgba(255,255,255,.75);
}
.story__profile {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 32px;
}
.story__photo {
  width: 90px;
  height: 90px;
  border-radius: 8px;
  object-fit: cover;
  object-position: top;
  border: 2px solid var(--gold);
  flex-shrink: 0;
}
.story__profile-title {
  font-size: 12px;
  color: rgba(255,255,255,.6);
  margin-bottom: 4px;
}
.story__profile-ruby {
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
}
.story__profile-ruby rt {
  font-size: 10px;
  font-weight: 400;
  color: rgba(255,255,255,.6);
}
.story__sign {
  margin-top: 32px;
  font-size: 13px;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: .08em;
}
.story__points { display: flex; flex-direction: column; gap: 32px; }
.story__point {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.story__point-icon { font-size: 28px; flex-shrink: 0; margin-top: 2px; }
.story__point h4 {
  font-size: 16px;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 8px;
}
.story__point p {
  font-size: 14px;
  color: rgba(255,255,255,.5);
  line-height: 1.9;
}

/* ===========================
   Mission / Vision / Value
   =========================== */
.mvv {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 72px;
}
.mvv__item {
  padding: 48px;
  background: var(--light-gray);
}
.mvv__label {
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .25em;
  color: var(--gold);
  margin-bottom: 16px;
}
.mvv__title {
  font-size: 24px;
  font-weight: 900;
  margin-bottom: 20px;
  line-height: 1.4;
}
.mvv__text { font-size: 15px; color: var(--gray); line-height: 1.9; }

.values__heading {
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .25em;
  color: var(--gold);
  margin-bottom: 24px;
  text-align: center;
}
.values__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  margin-bottom: 72px;
}
.value-item {
  padding: 32px 20px;
  background: var(--light-gray);
  text-align: center;
}
.value-item h4 {
  font-size: 15px;
  font-weight: 900;
  margin-bottom: 10px;
  color: var(--black);
}
.value-item p { font-size: 13px; color: var(--gray); line-height: 1.8; }

.promise { text-align: center; }
.promise__text {
  font-size: clamp(16px, 2.5vw, 22px);
  font-weight: 700;
  color: var(--gray);
  margin-bottom: 12px;
  line-height: 1.6;
}
.promise__text span { color: var(--black); font-weight: 900; }

/* ===========================
   目指す未来 朝日アニメーション
   =========================== */
.section--philosophy {
  position: relative;
  overflow: hidden;
  background: #0a0f2e;
}
/* 空のグラデーション（夜明け→朝）*/
.section--philosophy::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    #0a0f2e 0%,
    #1a1a5e 25%,
    #3a2060 40%,
    #c05a1a 65%,
    #e8892a 80%,
    #f5c060 100%
  );
  animation: sunriseSky 8s ease-in-out infinite alternate;
  z-index: 0;
}
/* 光線 */
.section--philosophy::before {
  content: '';
  position: absolute;
  bottom: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 200%;
  height: 120%;
  background: conic-gradient(
    from -60deg at 50% 100%,
    transparent 0deg,
    rgba(255,210,100,.13) 6deg,
    transparent 12deg,
    rgba(255,190,80,.10) 18deg,
    transparent 24deg,
    rgba(255,220,120,.15) 30deg,
    transparent 36deg,
    rgba(255,200,90,.12) 42deg,
    transparent 48deg,
    rgba(255,215,110,.10) 54deg,
    transparent 60deg,
    rgba(255,205,95,.13) 66deg,
    transparent 72deg,
    rgba(255,210,100,.08) 78deg,
    transparent 84deg,
    rgba(255,220,115,.11) 90deg,
    transparent 96deg,
    rgba(255,195,85,.09) 102deg,
    transparent 108deg,
    rgba(255,210,100,.13) 114deg,
    transparent 120deg
  );
  animation: sunriseRays 12s linear infinite;
  z-index: 0;
}
/* 太陽の光球 */
.section--philosophy .sun-glow {
  position: absolute;
  bottom: 18%;
  left: 50%;
  transform: translateX(-50%);
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,240,180,1) 0%, rgba(255,190,60,.8) 35%, rgba(255,130,30,.3) 65%, transparent 100%);
  animation: sunrisePulse 4s ease-in-out infinite alternate;
  z-index: 0;
  pointer-events: none;
}
@keyframes sunriseSky {
  0%   { opacity: .75; }
  100% { opacity: 1; }
}
@keyframes sunriseRays {
  from { transform: translateX(-50%) rotate(0deg); }
  to   { transform: translateX(-50%) rotate(360deg); }
}
@keyframes sunrisePulse {
  0%   { opacity: .7; transform: translateX(-50%) scale(.95); }
  100% { opacity: 1;  transform: translateX(-50%) scale(1.05); }
}
.section--philosophy .container {
  position: relative;
  z-index: 1;
}
.section--philosophy .section__title { color: #fff; text-shadow: 0 2px 20px rgba(255,160,40,.5); }
.section--philosophy .label { color: #f5c060; border-color: #f5c060; }
.section--philosophy .mvv__label { color: #f5c060; }
.section--philosophy .mvv__title { color: #fff; }
.section--philosophy .mvv__text { color: rgba(255,255,255,.85); }
.section--philosophy .mvv__item { background: rgba(10,15,46,.55); backdrop-filter: blur(10px); border: 1px solid rgba(255,200,80,.2); }
.section--philosophy .value-item { background: rgba(10,15,46,.55); backdrop-filter: blur(10px); border: 1px solid rgba(255,200,80,.2); }
.section--philosophy .value-item h4 { color: #f5c060; }
.section--philosophy .value-item p { color: rgba(255,255,255,.8); }
.section--philosophy .values__heading { color: #f5c060; }
.section--philosophy .promise__text { color: rgba(255,255,255,.85); }
.section--philosophy .promise__text span { color: #f5c060; }

/* 代表紹介動画 */
.rep-videos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 72px;
}
.rep-video__embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,.18);
}
.rep-video__embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}
.rep-video__label {
  text-align: center;
  margin-top: 14px;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
}
@media (max-width: 768px) {
  .rep-videos { grid-template-columns: 1fr; }
}

/* ===========================
   採用動画
   =========================== */
.recruit-video {
  max-width: 800px;
  margin: 0 auto;
}
.recruit-video__embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,.12);
}
.recruit-video__embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ===========================
   お問い合わせ
   =========================== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.contact-form { background: rgba(255,255,255,.05); padding: 48px; border-radius: 4px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,.6);
  margin-bottom: 8px;
}
.req {
  display: inline-block;
  font-size: 10px;
  background: var(--gold);
  color: var(--black);
  padding: 2px 6px;
  border-radius: 2px;
  margin-left: 6px;
  font-weight: 700;
  vertical-align: middle;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 4px;
  color: var(--white);
  font-family: var(--font-jp);
  font-size: 15px;
  outline: none;
  transition: border-color var(--transition);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,.2); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--gold); }
.form-group select option { background: #1a1a1a; color: var(--white); }
.form-submit { margin-top: 8px; }
.form-notice {
  text-align: center;
  margin-top: 16px;
  font-size: 14px;
  min-height: 20px;
  color: #4ade80;
}

.contact-side { display: flex; flex-direction: column; gap: 20px; }
.contact-alt {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 4px;
  padding: 28px;
}
.contact-alt__icon { font-size: 28px; margin-bottom: 12px; }
.contact-alt h4 {
  font-size: 16px;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 8px;
}
.contact-alt p { font-size: 13px; color: rgba(255,255,255,.4); line-height: 1.8; }

/* ===========================
   FOOTER
   =========================== */
.footer {
  background: var(--navy-dark);
  padding: 64px 0 32px;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.footer__logo {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 12px;
}
.footer__tagline {
  font-size: 13px;
  color: var(--gold);
  margin-bottom: 8px;
}
.footer__mission { font-size: 13px; color: rgba(255,255,255,.3); }
.footer__nav ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 32px;
}
.footer__nav a {
  font-size: 13px;
  color: rgba(255,255,255,.35);
  transition: color var(--transition);
}
.footer__nav a:hover { color: var(--white); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer__copy { font-size: 12px; color: rgba(255,255,255,.2); }
.footer__privacy { font-size: 12px; color: rgba(255,255,255,.2); transition: color var(--transition); }
.footer__privacy:hover { color: rgba(255,255,255,.5); }
.footer__info {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer__info p { font-size: 12px; color: rgba(255,255,255,.3); }
.footer__info a { color: rgba(255,255,255,.4); transition: color var(--transition); }
.footer__info a:hover { color: var(--white); }

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 1024px) {
  .problems  { grid-template-columns: repeat(3, 1fr); }
  .steps     { grid-template-columns: repeat(3, 1fr); }
  .step__arrow { display: none; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .cases     { grid-template-columns: 1fr; }
  .library-grid { grid-template-columns: repeat(2, 1fr); }
  .library-grid--7 { grid-template-columns: repeat(2, 1fr) !important; }
  .library-grid--7 .library-card:nth-child(n) { grid-column: span 1 !important; }
  .story     { grid-template-columns: 1fr; gap: 48px; }
  .mvv       { grid-template-columns: 1fr; }
  .values__grid { grid-template-columns: repeat(3, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; }
  .contact-side { display: grid; grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 24px; }
  .section { padding: 72px 0; }

  /* Header */
  .header__inner { padding: 16px 24px; }
  .nav {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--navy);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    z-index: 100;
  }
  .nav.open { display: flex; }
  .nav__list { flex-direction: column; align-items: center; gap: 24px; }
  .nav__link { color: var(--white) !important; font-size: 18px; }
  .nav__cta { background: var(--white) !important; color: var(--black) !important; border-color: var(--white) !important; }
  .hamburger { display: flex; z-index: 101; }

  /* Sections */
  .problems  { grid-template-columns: 1fr 1fr; gap: 2px; }
  .steps     { grid-template-columns: repeat(2, 1fr); }
  .service-grid { grid-template-columns: 1fr; }
  .library-grid { grid-template-columns: 1fr; }
  .library-grid--7 { grid-template-columns: 1fr !important; }
  .library-grid--7 .library-card:nth-child(n) { grid-column: span 1 !important; }
  .values__grid { grid-template-columns: repeat(2, 1fr); }
  .mvv__item { padding: 32px 24px; }
  .story__block { padding: 32px 24px; }
  .contact-form { padding: 32px 24px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-side { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
  .footer__bottom { flex-direction: column; gap: 8px; text-align: center; }

  .hero__content { padding: 100px 24px 60px; }
}

@media (max-width: 480px) {
  .problems  { grid-template-columns: 1fr; }
  .steps     { grid-template-columns: 1fr; }
  .values__grid { grid-template-columns: 1fr; }
  .hero__cta { flex-direction: column; }
  .section__cta { flex-direction: column; align-items: center; }
}