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

:root {
  /* ── パターンA ライトモード ── */
  --clr-primary:    #f97316;   /* オレンジ（アクセント） */
  --clr-primary-dk: #ea580c;   /* 濃いオレンジ */
  --clr-primary-lt: #ffedd5;   /* 薄いオレンジ */
  --clr-dark:       #f8fafc;   /* ページ背景（白） */
  --clr-dark-2:     #f1f5f9;   /* セクション背景（薄グレー） */
  --clr-dark-3:     #e2e8f0;   /* ボーダー・区切り */
  --clr-mid:        #64748b;   /* ミッドトーン */
  --clr-light:      #e2e8f0;   /* ライト */
  --clr-white:      #ffffff;
  --clr-text:       #1e293b;   /* メインテキスト（濃いネイビー） */
  --clr-text-sub:   #64748b;   /* サブテキスト */
  --clr-text-mute:  #94a3b8;   /* ミュートテキスト */
  --clr-accent:     #0ea5e9;   /* アクセントブルー */
  --clr-success:    #16a34a;
  --clr-danger:     #ef4444;

  --ff-sans:  'Noto Sans JP', sans-serif;
  --ff-eng:   'Inter', sans-serif;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.07);
  --shadow-md:  0 4px 12px rgba(0,0,0,.09);
  --shadow-lg:  0 8px 24px rgba(0,0,0,.11);
  --shadow-xl:  0 20px 48px rgba(0,0,0,.13);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  --transition: 0.3s ease;
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--ff-sans);
  background: var(--clr-dark);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   TYPOGRAPHY HELPERS
   ============================================================ */
.section {
  padding: 100px 0;
}

.section-label {
  font-family: var(--ff-eng);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .15em;
  color: var(--clr-primary);
  margin-bottom: .75rem;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--clr-text);
}

.section-lead {
  font-size: 1.05rem;
  color: var(--clr-text-sub);
  max-width: 700px;
  margin-bottom: 3.5rem;
  line-height: 1.9;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: .95rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
  box-shadow: 0 4px 20px rgba(249,115,22,.35);
}
.btn--primary:hover {
  background: var(--clr-primary-dk);
  border-color: var(--clr-primary-dk);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(249,115,22,.5);
}

.btn--outline {
  background: transparent;
  color: var(--clr-white);
  border-color: rgba(255,255,255,.4);
}
.btn--outline:hover {
  background: rgba(255,255,255,.08);
  border-color: var(--clr-white);
  transform: translateY(-2px);
}

/* ライト背景用アウトラインボタン */
.btn--outline-dark {
  background: transparent;
  color: var(--clr-primary);
  border: 2px solid var(--clr-primary);
}
.btn--outline-dark:hover {
  background: var(--clr-primary-lt);
  transform: translateY(-2px);
}

.btn--lg { padding: .9rem 2.2rem; font-size: 1.05rem; }
.btn--sm { padding: .4rem 1rem; font-size: .82rem; }
.btn--block { width: 100%; justify-content: center; }

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}
.header.scrolled {
  background: rgba(15,23,42,.95);
  backdrop-filter: blur(12px);
  padding: 12px 0;
  box-shadow: 0 2px 20px rgba(0,0,0,.4);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

/* テキストロゴ */
.logo__brand {
  font-family: var(--ff-eng);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--clr-primary);
  letter-spacing: -.02em;
  line-height: 1;
}

.logo__sep {
  color: var(--clr-dark-3);
  font-size: 1.1rem;
  margin: 0 .45rem;
  line-height: 1;
}

.logo__tagline {
  font-size: .78rem;
  font-weight: 700;
  color: var(--clr-text-sub);
  letter-spacing: .02em;
  line-height: 1;
}

/* Hero上（スクロール前）はロゴを白系に */
.header:not(.scrolled) .logo__sep    { color: rgba(255,255,255,.3); }
.header:not(.scrolled) .logo__tagline { color: rgba(255,255,255,.75); }

/* フッター内ロゴ（濃いネイビー背景） */
.footer .logo__sep     { color: rgba(255,255,255,.35); }
.footer .logo__tagline { color: rgba(255,255,255,.85); }

.nav__list {
  display: flex;
  align-items: center;
  gap: .25rem;
  list-style: none;
}
.nav__link {
  padding: .4rem .75rem;
  font-size: .82rem;
  font-weight: 500;
  color: var(--clr-text-sub);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover { color: var(--clr-white); background: rgba(255,255,255,.07); }
.nav__link.active { color: var(--clr-primary); }

.nav__link--cta {
  background: var(--clr-primary);
  color: var(--clr-white) !important;
  padding: .4rem 1.1rem;
  border-radius: 50px;
}
.nav__link--cta:hover {
  background: var(--clr-primary-dk);
  color: var(--clr-white) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(15,23,42,.92) 0%,
    rgba(15,23,42,.75) 50%,
    rgba(194,65,12,.3) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding-top: 100px;
  padding-bottom: 80px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(249,115,22,.15);
  border: 1px solid rgba(249,115,22,.4);
  color: var(--clr-primary);
  padding: .4rem 1rem;
  border-radius: 50px;
  font-size: .82rem;
  font-weight: 600;
  margin-bottom: 1.75rem;
  animation: fadeInDown .8s ease forwards;
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  color: var(--clr-white);
  animation: fadeInUp .8s ease .1s both;
}
.hero__title--accent {
  color: var(--clr-primary);
  position: relative;
}
.hero__title--accent::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 3px;
  background: var(--clr-primary);
  border-radius: 2px;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,.82);
  margin-bottom: 2.5rem;
  line-height: 1.8;
  animation: fadeInUp .8s ease .2s both;
}
.hero__subtitle strong { color: var(--clr-white); }

.hero__stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  animation: fadeInUp .8s ease .3s both;
}
.hero__stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.hero__stat-num {
  font-family: var(--ff-eng);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1;
}
.hero__stat-num small { font-size: 1rem; font-weight: 600; }
.hero__stat-label {
  font-size: .75rem;
  color: var(--clr-white);
  font-weight: 600;
  margin-top: .25rem;
  text-shadow: 0 1px 4px rgba(0,0,0,.6);
}

.hero__cta-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeInUp .8s ease .4s both;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  color: var(--clr-text-mute);
  font-size: .7rem;
  letter-spacing: .12em;
  animation: bounce 2s infinite;
  z-index: 2;
}

/* ============================================================
   NOTICE BANNER
   ============================================================ */
.notice-banner {
  background: linear-gradient(90deg, #fff7ed 0%, #ffedd5 100%);
  border-top: 1px solid rgba(249,115,22,.2);
  border-bottom: 1px solid rgba(249,115,22,.2);
  padding: 14px 0;
  font-size: .85rem;
  color: var(--clr-text-sub);
  text-align: center;
}
.notice-banner .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.notice-banner i { color: var(--clr-accent); }
.notice-banner strong { color: var(--clr-accent); font-weight: 700; }
.notice-sep { color: var(--clr-text-mute); }

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--clr-dark); }

.about__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.about__card {
  background: var(--clr-dark-2);
  border: 1px solid #1e293b;
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.about__card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--clr-primary);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}
.about__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(249,115,22,.2); }
.about__card:hover::before { transform: scaleX(1); }

.about__card-icon {
  width: 52px; height: 52px;
  background: rgba(249,115,22,.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.4rem;
  color: var(--clr-primary);
}
.about__card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: .75rem; }
.about__card p { font-size: .9rem; color: var(--clr-text-sub); line-height: 1.75; }

/* ============================================================
   PROBLEM
   ============================================================ */
.problem {
  background: var(--clr-dark-2);
}

.problem__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.problem__item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.5rem;
  background: var(--clr-dark);
  border: 1px solid #1e293b;
  border-left: 4px solid var(--clr-danger);
  border-radius: var(--radius-md);
  transition: transform var(--transition), box-shadow var(--transition);
}
.problem__item:hover { transform: translateX(4px); box-shadow: var(--shadow-md); }

.problem__icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  background: rgba(239,68,68,.12);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.15rem;
  color: var(--clr-danger);
}
.problem__text h4 { font-size: .95rem; font-weight: 700; margin-bottom: .4rem; }
.problem__text p { font-size: .85rem; color: var(--clr-text-sub); line-height: 1.7; }

/* ============================================================
   SOLUTION
   ============================================================ */
.solution { background: var(--clr-dark); }

.solution__comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 4rem;
}

.solution__col {
  background: var(--clr-dark-2);
  border-radius: var(--radius-md);
  padding: 2rem;
  border: 1px solid #1e293b;
}
.solution__col--new {
  border-color: rgba(249,115,22,.25);
  background: rgba(249,115,22,.06);
}

.solution__col-header {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid #1e293b;
}
.solution__col-header--old { color: #ef4444; }
.solution__col-header--new { color: var(--clr-success); }

.solution__list { list-style: none; display: flex; flex-direction: column; gap: .75rem; }
.solution__list li { display: flex; align-items: flex-start; gap: .75rem; font-size: .9rem; line-height: 1.6; }
.solution__list--old i { color: var(--clr-danger); flex-shrink: 0; margin-top: .2rem; }
.solution__list--new i { color: var(--clr-success); flex-shrink: 0; margin-top: .2rem; }

.solution__arrow {
  font-size: 2rem;
  color: var(--clr-primary);
  display: flex;
  align-items: center;
}

/* Use Case */
.usecase { margin-bottom: 4rem; }
.usecase__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--clr-text);
}
.usecase__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: .75rem;
}
.usecase__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
  padding: 1.25rem 1rem;
  background: var(--clr-dark-2);
  border: 1px solid #1e293b;
  border-radius: var(--radius-md);
  text-align: center;
  font-size: .82rem;
  font-weight: 600;
  color: var(--clr-text-sub);
  transition: all var(--transition);
}
.usecase__item:hover { border-color: var(--clr-primary); color: var(--clr-text); transform: translateY(-3px); }
.usecase__icon { font-size: 1.5rem; color: var(--clr-primary); }

/* Case Study */
.casestudy {
  background: var(--clr-dark-2);
  border: 1px solid rgba(249,115,22,.2);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  overflow: hidden;
}
.casestudy__badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(249,115,22,.15);
  border: 1px solid rgba(249,115,22,.3);
  color: var(--clr-primary);
  font-size: .78rem;
  font-weight: 700;
  padding: .3rem .85rem;
  border-radius: 50px;
  margin-bottom: 1.5rem;
}
.casestudy__content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem;
  align-items: center;
}
.casestudy__text h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.casestudy__text p {
  color: var(--clr-text-sub);
  font-size: .95rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}
.casestudy__text strong { color: var(--clr-primary); }
.casestudy__metrics {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.casestudy__metric { display: flex; flex-direction: column; gap: .2rem; }
.casestudy__metric-label {
  font-size: .78rem;
  font-weight: 700;
  color: #fff;
  background: var(--clr-primary);
  display: inline-block;
  padding: .15rem .6rem;
  border-radius: 2rem;
  letter-spacing: .05em;
  align-self: flex-start;
  margin-bottom: .2rem;
}
.casestudy__metric-num {
  font-family: var(--ff-eng);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1;
}
.casestudy__metric-num small { font-size: 1rem; color: var(--clr-text-mute); }
.casestudy__metric-reduction { font-size: 1.1rem; font-weight: 800; color: #e53e3e; letter-spacing: .04em; }
.casestudy__img-wrap { flex-shrink: 0; }
.casestudy__img {
  width: 280px;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid rgba(249,115,22,.2);
}

/* ============================================================
   SAFETY
   ============================================================ */
.safety {
  background: var(--clr-dark-2);
  position: relative;
  overflow: hidden;
}
.safety__bg-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(249,115,22,.04) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

.safety__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.safety__item {
  background: var(--clr-dark);
  border: 1px solid #1e293b;
  border-radius: var(--radius-md);
  padding: 2rem;
  position: relative;
  transition: all var(--transition);
}
.safety__item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(249,115,22,.2); }

.safety__num {
  position: absolute;
  top: 1.5rem; right: 1.75rem;
  font-family: var(--ff-eng);
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(249,115,22,.75);
  line-height: 1;
}
.safety__icon {
  font-size: 1.5rem;
  color: var(--clr-primary);
  margin-bottom: .75rem;
}
.safety__item h4 { font-size: 1rem; font-weight: 700; margin-bottom: .6rem; }
.safety__item p { font-size: .88rem; color: var(--clr-text-sub); line-height: 1.7; }

/* CEO block */
.safety__ceo {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2.5rem;
  align-items: start;
  background: var(--clr-dark);
  border: 1px solid rgba(249,115,22,.2);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}
.safety__ceo-img {
  width: 110px; height: 110px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid rgba(249,115,22,.5);
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(0,0,0,.35);
}
.safety__ceo-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.safety__ceo-name { font-size: 1.2rem; font-weight: 700; }
.safety__ceo-title { font-size: .82rem; color: var(--clr-text-mute); margin-bottom: 1rem; }
.safety__ceo-quote {
  font-size: .95rem;
  color: var(--clr-text-sub);
  line-height: 1.85;
  border-left: 3px solid var(--clr-primary);
  padding-left: 1.25rem;
  font-style: italic;
  margin-bottom: 1.25rem;
}
.safety__ceo-career {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.safety__ceo-career span {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .78rem;
  color: var(--clr-text-mute);
  background: var(--clr-dark-2);
  border: 1px solid #1e293b;
  padding: .3rem .75rem;
  border-radius: 50px;
}
.safety__ceo-career i { color: var(--clr-primary); }

/* ============================================================
   SPECS
   ============================================================ */
/* ============================================================
   MAINTENANCE & TRAINING
   ============================================================ */
.maintenance { background: #f8f9fa; }

.maintenance__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 2.5rem;
}

.maintenance__card {
  background: #fff;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0,0,0,.07);
  display: flex;
  flex-direction: column;
}

.maintenance__card-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.maintenance__card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.maintenance__card:hover .maintenance__card-img img {
  transform: scale(1.03);
}

.maintenance__card-body {
  padding: 1.75rem;
  flex: 1;
}

.maintenance__card-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .72rem;
  font-weight: 700;
  color: var(--clr-primary);
  background: rgba(37,99,235,.08);
  padding: .25rem .75rem;
  border-radius: 2rem;
  margin-bottom: .85rem;
  letter-spacing: .05em;
}

.maintenance__card-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: .75rem;
  line-height: 1.4;
}

.maintenance__card-body p {
  font-size: .9rem;
  color: var(--clr-text-mute);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.maintenance__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.maintenance__list li {
  font-size: .85rem;
  color: var(--clr-text);
  display: flex;
  align-items: center;
  gap: .5rem;
}

.maintenance__list li .fa-check {
  color: var(--clr-primary);
  font-size: .75rem;
}

.maintenance__note {
  margin-top: 2rem;
  text-align: center;
  font-size: .88rem;
  color: var(--clr-text-mute);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
}

.maintenance__note a {
  color: var(--clr-primary);
  font-weight: 600;
  text-decoration: underline;
}

/* ============================================================
   SPECS
   ============================================================ */
.specs { background: var(--clr-dark); }

.specs__layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 3rem;
  align-items: start;
}

.specs__drone-visual {
  background: var(--clr-dark-2);
  border: 1px solid #1e293b;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.25rem;
  text-align: center;
}

/* 写真ラッパー：横長画像を縦長エリアにトリミング表示 */
.specs__drone-photo-wrap {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.specs__drone-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* 横長画像の中央やや上部（ドローン2機が映る位置）を表示 */
  object-position: center 40%;
  display: block;
  transition: transform .4s ease;
}
.specs__drone-photo:hover {
  transform: scale(1.03);
}
.specs__drone-caption {
  color: #cbd5e1;
  font-size: .85rem;
  font-weight: 600;
  padding: .75rem 0 .85rem;
  letter-spacing: .04em;
}

.specs__highlight-badges {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.specs__badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(14,165,233,.1);
  border: 1px solid rgba(14,165,233,.25);
  color: var(--clr-accent);
  font-size: .78rem;
  font-weight: 600;
  padding: .4rem .85rem;
  border-radius: 50px;
}

.specs__table {
  width: 100%;
  border-collapse: collapse;
  background: var(--clr-dark-2);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid #1e293b;
}
.specs__table thead th {
  background: rgba(249,115,22,.12);
  color: var(--clr-primary);
  font-size: .85rem;
  font-weight: 700;
  text-align: left;
  padding: .85rem 1.25rem;
  letter-spacing: .03em;
}
.specs__table tbody tr { border-top: 1px solid #1e293b; }
.specs__table tbody tr:hover { background: rgba(255,255,255,.03); }
.specs__table tbody td {
  padding: .85rem 1.25rem;
  font-size: .88rem;
  color: var(--clr-text-sub);
  vertical-align: top;
}
.specs__table tbody td:first-child {
  color: var(--clr-text);
  font-weight: 600;
  width: 45%;
  white-space: nowrap;
}
.specs__table tbody td:first-child i { color: var(--clr-primary); margin-right: .5rem; }
.specs__table tbody td strong { color: var(--clr-text); }

.specs__tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.specs__tag {
  background: var(--clr-dark);
  border: 1px solid #334155;
  color: var(--clr-text-sub);
  font-size: .78rem;
  padding: .3rem .75rem;
  border-radius: 50px;
}

/* ============================================================
   CASES
   ============================================================ */
.cases { background: var(--clr-dark-2); }

.cases__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.cases__card {
  background: var(--clr-dark);
  border: 1px solid #1e293b;
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.cases__card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--clr-primary);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.cases__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.cases__card:hover::after { transform: scaleX(1); }

.cases__card-icon {
  font-size: 2rem;
  color: var(--clr-primary);
  margin-bottom: 1rem;
}
.cases__card-tag {
  display: inline-block;
  background: rgba(249,115,22,.12);
  color: var(--clr-primary);
  font-size: .72rem;
  font-weight: 700;
  padding: .2rem .65rem;
  border-radius: 50px;
  margin-bottom: .75rem;
  letter-spacing: .04em;
}
.cases__card h4 { font-size: 1rem; font-weight: 700; margin-bottom: .6rem; }
.cases__card p { font-size: .85rem; color: var(--clr-text-sub); line-height: 1.7; margin-bottom: 1rem; }
.cases__card-result {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .82rem;
  font-weight: 600;
  color: var(--clr-success);
}
.cases__card-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-top: 1rem;
  font-size: .82rem;
  font-weight: 700;
  color: var(--clr-primary);
  text-decoration: none;
  transition: gap .2s ease;
}
.cases__card-link:hover {
  gap: .7rem;
  text-decoration: none;
}

/* ============================================================
   FLOW
   ============================================================ */
.flow { background: var(--clr-dark); }

.flow__steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 1rem;
  align-items: start;
}

.flow__step {
  background: var(--clr-dark-2);
  border: 1px solid #1e293b;
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  text-align: center;
  position: relative;
}

.flow__step-num {
  font-family: var(--ff-eng);
  font-size: 2.2rem;
  font-weight: 800;
  color: rgba(249,115,22,.75);
  line-height: 1;
  margin-bottom: .5rem;
}
.flow__step-icon {
  font-size: 1.75rem;
  color: var(--clr-primary);
  margin-bottom: .75rem;
}
.flow__step h4 { font-size: .95rem; font-weight: 700; margin-bottom: .5rem; }
.flow__step p { font-size: .82rem; color: var(--clr-text-sub); line-height: 1.65; margin-bottom: .75rem; }
.flow__step-note {
  font-size: .73rem;
  color: var(--clr-text-mute);
  background: rgba(255,255,255,.03);
  border: 1px solid #1e293b;
  padding: .3rem .6rem;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.flow__connector {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--clr-primary);
  padding-top: 3rem;
}

/* ============================================================
   PRICE
   ============================================================ */
.price { background: var(--clr-dark-2); }

.price__cards {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.price__card {
  background: var(--clr-dark);
  border: 1px solid #1e293b;
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  min-width: 280px;
  max-width: 340px;
  flex: 1;
  position: relative;
  transition: all var(--transition);
}
.price__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }

.price__card--volume {
  border-color: rgba(249,115,22,.35);
  background: rgba(249,115,22,.04);
}

.price__card-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--clr-primary);
  color: var(--clr-white);
  font-size: .75rem;
  font-weight: 700;
  padding: .3rem 1rem;
  border-radius: 50px;
  white-space: nowrap;
}

.price__card-label { font-size: .85rem; font-weight: 700; color: var(--clr-text-sub); margin-bottom: .5rem; text-transform: uppercase; letter-spacing: .06em; }
.price__card-price { margin-bottom: .25rem; }
.price__amount {
  font-family: var(--ff-eng);
  font-size: 3rem;
  font-weight: 800;
  color: var(--clr-primary);
}
.price__amount small { font-size: 1.3rem; font-weight: 600; }
.price__unit { font-size: .88rem; color: var(--clr-text-sub); display: block; }
.price__card-note { font-size: .8rem; color: var(--clr-text-mute); margin-bottom: 1.75rem; }

.price__includes {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .6rem;
  margin-bottom: 2rem;
}
.price__includes li {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .88rem;
  color: var(--clr-text-sub);
}
.price__includes i { color: var(--clr-success); }

.price__note {
  background: rgba(30,58,95,.3);
  border: 1px solid rgba(30,58,95,.6);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  font-size: .85rem;
  color: var(--clr-text-sub);
  line-height: 1.8;
}
.price__note i { color: var(--clr-accent); margin-right: .4rem; }

/* ============================================================
   FAQ
   ============================================================ */
.faq { background: var(--clr-dark); }

.faq__list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.faq__item {
  background: var(--clr-dark-2);
  border: 1px solid #1e293b;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq__item.open { border-color: rgba(249,115,22,.3); }

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--ff-sans);
  font-size: .95rem;
  font-weight: 700;
  color: var(--clr-text);
  transition: background var(--transition);
}
.faq__question:hover { background: #fff7ed; }
.faq__question span { display: flex; align-items: center; gap: .75rem; }
.faq__question span i { color: var(--clr-primary); flex-shrink: 0; }
.faq__chevron { color: var(--clr-text-mute); transition: transform var(--transition); flex-shrink: 0; }
.faq__item.open .faq__chevron { transform: rotate(180deg); color: var(--clr-primary); }

.faq__answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height .4s cubic-bezier(0,1,0,1), padding .4s;
  padding: 0 1.5rem;
}
.faq__item.open .faq__answer {
  max-height: 500px;
  padding: 0 1.5rem 1.25rem;
  transition: max-height .4s ease, padding .4s;
}
.faq__answer p { font-size: .9rem; color: var(--clr-text-sub); line-height: 1.8; }
.faq__answer strong { color: var(--clr-text); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  background: var(--clr-dark-2);
}

.contact__layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 3rem;
  align-items: start;
}

/* Form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.form__group {
  display: flex;
  flex-direction: column;
  gap: .45rem;
}
.form__group label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--clr-text);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.required {
  background: rgba(239,68,68,.15);
  color: var(--clr-danger);
  font-size: .7rem;
  font-weight: 700;
  padding: .1rem .45rem;
  border-radius: 4px;
}
.form__group input,
.form__group textarea {
  background: #fff;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-sm);
  padding: .8rem 1rem;
  font-family: var(--ff-sans);
  font-size: .9rem;
  color: var(--clr-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}
.form__group input::placeholder,
.form__group textarea::placeholder { color: var(--clr-text-mute); }
.form__group input:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(249,115,22,.15);
}
.form__group input.error,
.form__group textarea.error {
  border-color: var(--clr-danger);
}

.contact__success {
  text-align: center;
  padding: 3rem 2rem;
  background: rgba(34,197,94,.07);
  border: 1px solid rgba(34,197,94,.25);
  border-radius: var(--radius-lg);
}
.contact__success i {
  font-size: 3rem;
  color: var(--clr-success);
  margin-bottom: 1rem;
  display: block;
}
.contact__success h3 { font-size: 1.3rem; margin-bottom: .5rem; }
.contact__success p { color: var(--clr-text-sub); }

/* Info card */
.contact__info-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-dark-3);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: sticky;
  top: 90px;
  box-shadow: var(--shadow-md);
}
.contact__info-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 1.25rem; color: var(--clr-text); }

.contact__info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  margin-bottom: 1.75rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--clr-dark-3);
}
.contact__info-list li {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .88rem;
  color: var(--clr-text-sub);
}
.contact__info-list i { color: var(--clr-primary); width: 16px; flex-shrink: 0; }
.contact__info-list a { color: var(--clr-text-sub); }
.contact__info-list a:hover { color: var(--clr-primary); }

.contact__cta-points {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  margin-bottom: 1.75rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--clr-dark-3);
}
.contact__cta-point {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .85rem;
  color: var(--clr-text-sub);
}
.contact__cta-point i { color: var(--clr-success); flex-shrink: 0; }

.contact__emergency {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.contact__emergency > i {
  font-size: 1.5rem;
  color: var(--clr-primary);
  flex-shrink: 0;
  margin-top: .1rem;
}
.contact__emergency-label { font-size: .88rem; font-weight: 700; color: var(--clr-text); }
.contact__emergency-hint { font-size: 1.05rem; font-weight: 700; color: var(--clr-text); margin-top: .3rem; letter-spacing: .02em; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: #0f172a;  /* 濃いネイビー固定 */
  border-top: 1px solid #1e293b;
  padding: 3.5rem 0 2rem;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid #1e293b;
}

.footer__brand {
  max-width: 300px;
}
.footer__logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1rem;
}
.footer__desc {
  font-size: .85rem;
  color: var(--clr-text-mute);
  line-height: 1.7;
}

.footer__nav ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: .4rem 1.5rem;
}
.footer__nav a {
  font-size: .82rem;
  color: var(--clr-text-mute);
  transition: color var(--transition);
}
.footer__nav a:hover { color: var(--clr-primary); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: .78rem;
  color: #94a3b8;
}
.footer__disclaimer {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.footer__legal-links {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-top: .5rem;
  font-size: .8rem;
}
.footer__legal-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: color .2s;
}
.footer__legal-links a:hover { color: #f97316; }
.footer__legal-links span { color: #475569; }

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border: none;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}
.back-to-top:hover {
  background: var(--clr-primary-dk);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* ============================================================
   DRONE SVG ICON
   ============================================================ */
.drone-svg {
  width: 160px;
  height: 160px;
  display: block;
  margin: 0 auto .5rem;
  filter: drop-shadow(0 0 18px rgba(249,115,22,.35));
  animation: droneHover 3s ease-in-out infinite;
}

.drone-svg--sm {
  width: 2.4rem;
  height: 2.4rem;
  color: var(--clr-primary);
  filter: none;
  animation: none;
}

/* ローターの回転アニメーション */
.drone-svg .rotor-spin {
  transform-box: fill-box;
  transform-origin: center;
  animation: rotorSpin .6s linear infinite;
}

/* ホバリング上下揺れ */
@keyframes droneHover {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

/* ローター回転 */
@keyframes rotorSpin {
  from { transform: rotateY(0deg); }
  to   { transform: rotateY(180deg); }
}

/* ============================================================
   KEYFRAMES
   ============================================================ */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 1024px) {
  .specs__layout {
    grid-template-columns: 1fr;
  }
  .specs__drone-visual {
    max-width: 560px;
    margin: 0 auto 1.25rem;
  }
  .specs__drone-photo-wrap {
    aspect-ratio: 16 / 7;
  }
  .casestudy__content {
    grid-template-columns: 1fr;
  }
  .casestudy__img-wrap { order: -1; }
  .casestudy__img { width: 100%; height: 200px; }

  .flow__steps {
    grid-template-columns: 1fr 1fr;
    row-gap: 2rem;
  }
  .flow__connector { display: none; }

  .solution__comparison {
    grid-template-columns: 1fr;
  }
  .solution__arrow {
    justify-content: center;
    transform: rotate(90deg);
    margin: .5rem 0;
  }
}

@media (max-width: 900px) {
  .contact__layout {
    grid-template-columns: 1fr;
  }
  .contact__info-card { position: static; }
  .safety__ceo {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 768px) {
  .section { padding: 70px 0; }

  /* Nav */
  .nav {
    position: fixed;
    top: 0; right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: rgba(15,23,42,.98);
    backdrop-filter: blur(16px);
    padding: 80px 24px 24px;
    transition: right var(--transition);
    z-index: 999;
    border-left: 1px solid #1e293b;
  }
  .nav.open { right: 0; }
  .nav__list { flex-direction: column; align-items: flex-start; gap: .25rem; }
  .nav__link { width: 100%; font-size: 1rem; padding: .75rem 1rem; }
  .hamburger { display: flex; z-index: 1001; }

  /* Hero */
  .hero__stats {
    gap: 1.25rem;
  }
  .hero__stat-num { font-size: 1.9rem; }
  .hero__cta-group { flex-direction: column; }
  .hero__cta-group .btn { width: 100%; justify-content: center; }

  /* Problem grid */
  .problem__grid {
    grid-template-columns: 1fr;
  }

  /* Cases */
  .cases__grid {
    grid-template-columns: 1fr;
  }

  /* Flow */
  .flow__steps {
    grid-template-columns: 1fr;
  }

  /* Price */
  .price__cards { flex-direction: column; align-items: center; }
  .price__card { min-width: unset; max-width: 100%; width: 100%; }

  /* Footer */
  .footer__top { flex-direction: column; }
  .footer__nav ul { grid-template-columns: repeat(2, auto); }
  .footer__bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero__stats { gap: 1rem; }
  .hero__stat-num { font-size: 1.6rem; }

  .about__cards { grid-template-columns: 1fr; }
  .maintenance__grid { grid-template-columns: 1fr; }
  .usecase__grid { grid-template-columns: repeat(2, 1fr); }
  .casestudy__metrics { gap: 1.25rem; }
  .safety__grid { grid-template-columns: 1fr; }

  .notice-banner .container {
    flex-direction: column;
    gap: .4rem;
  }
  .notice-sep { display: none; }
}