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

/* ================================================
   テーマ切り替え：コメントを外す/入れるだけで変更可
   現在：青×白テーマ
   元に戻す：「青×白テーマ」をコメントアウトし、
            「赤×黒×白テーマ（オリジナル）」のコメントを外す
   ================================================ */

/* --- 青×白テーマ（現在） --- */
:root {
  --red: #1A56DB;
  --red-dark: #1344b0;
  --red-light: rgba(26,86,219,0.1);
  --black: #0F172A;
  --dark: #1E293B;

/* --- 赤×黒×白テーマ（オリジナル） ---
:root {
  --red: #C41E1E;
  --red-dark: #9E1818;
  --red-light: rgba(196,30,30,0.1);
  --black: #0d0d0d;
  --dark: #161616;
*/
  --gray-900: #1e1e1e;
  --gray-700: #333;
  --gray-500: #666;
  --gray-300: #999;
  --gray-100: #f4f4f4;
  --white: #fff;
  --font-ja: 'Noto Sans JP', sans-serif;
  --font-en: 'Montserrat', sans-serif;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--font-ja);
  color: var(--black);
  background: var(--white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ===== LOADER ===== */
.loader {
  position: fixed;
  inset: 0;
  background: var(--black);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}
.loader.hidden { opacity: 0; visibility: hidden; }
.loader-logo {
  font-family: var(--font-en);
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: 0.3em;
  color: var(--white);
}
.loader-bar {
  width: 200px;
  height: 2px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
}
.loader-progress {
  height: 100%;
  background: var(--red);
  width: 0;
  animation: loadProgress 1.2s var(--ease) forwards;
}
@keyframes loadProgress { to { width: 100%; } }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 36px;
  font-family: var(--font-ja);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  transform: translateX(-101%);
  transition: transform 0.3s var(--ease);
}
.btn:hover::before { transform: translateX(0); }
.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-dark); }
.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.4);
}
.btn-ghost:hover { border-color: var(--white); }
.btn.large { padding: 18px 48px; font-size: 1rem; }

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  transition: background 0.4s, box-shadow 0.4s;
}
.header.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.08);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-logo .logo-svg {
  height: 46px;
  width: auto;
  color: var(--white);
  transition: color 0.4s;
}
.header.scrolled .nav-logo .logo-svg { color: var(--red); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.8);
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav-links a:hover::after { transform: scaleX(1); }
.header.scrolled .nav-links a { color: var(--gray-700); }
.nav-cta {
  background: var(--red) !important;
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 2px;
  transition: background 0.2s !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--red-dark) !important; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  transition: all 0.3s;
}
.header.scrolled .hamburger span { background: var(--black); }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--black);
}
.hero-video-wrap {
  position: absolute;
  inset: 0;
  filter: brightness(1.15) saturate(1.3);
}
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 50%;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}
.hero-slide.active {
  opacity: 1;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(5,15,40,0.12) 0%, rgba(5,15,40,0.04) 100%);
  z-index: 1;
}
.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26,86,219,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,86,219,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 140px;
  padding-bottom: 100px;
  max-width: 800px;
  background: rgba(5, 15, 45, 0.52);
  border-radius: 16px;
  padding-left: 48px;
  padding-right: 48px;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out) 1.4s forwards;
}
.eyebrow-line {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--red);
}
.hero-eyebrow span:last-child {
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
}
.hero-headline {
  display: flex;
  flex-direction: column;
  margin-bottom: 36px;
}
.headline-line {
  display: block;
  font-size: clamp(2.6rem, 5.5vw, 4.5rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.25;
  letter-spacing: -0.01em;
  opacity: 0;
  transform: translateY(30px);
}
.headline-line.accent { color: #60a5fa; }
.headline-line.visible {
  animation: fadeInUp 0.8s var(--ease-out) forwards;
}
.hero-body {
  font-size: 1rem;
  color: rgba(255,255,255,0.88);
  line-height: 2.1;
  margin-bottom: 52px;
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out) 1.8s forwards;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out) 2s forwards;
}
.hero-scroll-indicator {
  position: absolute;
  bottom: 48px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0;
  animation: fadeIn 1s var(--ease) 2.4s forwards;
}
.scroll-text {
  font-family: var(--font-en);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: rgba(255,255,255,0.3);
}
.scroll-track {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
}
.scroll-thumb {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 30%;
  background: var(--red);
  animation: scrollThumb 2s ease-in-out infinite;
}
@keyframes scrollThumb {
  0% { top: 0; }
  100% { top: 100%; }
}
.hero-side-text {
  position: absolute;
  right: -80px;
  top: 50%;
  transform: translateY(-50%) rotate(90deg);
  transform-origin: center;
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: rgba(255,255,255,0.12);
  z-index: 2;
  white-space: nowrap;
}

/* ===== NUMBERS ===== */
.numbers {
  background: var(--red);
  padding: 0;
}
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.number-item {
  padding: 52px 40px;
  border-right: 1px solid rgba(255,255,255,0.15);
  text-align: center;
  transition: background 0.3s;
}
.number-item:last-child { border-right: none; }
.number-item:hover { background: rgba(0,0,0,0.1); }
.number-val {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin-bottom: 8px;
}
.count-num {
  font-family: var(--font-en);
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1;
}
.number-unit {
  font-size: 1rem;
  font-weight: 700;
  color: rgba(255,255,255,0.7);
}
.number-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.04em;
}

/* ===== SECTION COMMON ===== */
.section-header { text-align: center; margin-bottom: 72px; }
.section-eyebrow {
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--red);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-eyebrow.light { color: rgba(255,255,255,0.5); }
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--black);
  margin-bottom: 20px;
  line-height: 1.3;
}
.section-title.light { color: var(--white); }
.section-lead {
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.9;
}

/* ===== SERVICES ===== */
.services {
  padding: 120px 0;
  background: var(--white);
  position: relative;
  overflow: hidden;
}
.services-bg-text {
  position: absolute;
  top: 60px;
  right: -20px;
  font-family: var(--font-en);
  font-size: clamp(100px, 15vw, 180px);
  font-weight: 900;
  color: rgba(0,0,0,0.03);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.05em;
}

/* サービスタブ */
.service-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid rgba(0,0,0,0.1);
  margin-bottom: 56px;
  overflow-x: auto;
  scrollbar-width: none;
}
.service-tabs::-webkit-scrollbar { display: none; }
.tab-btn {
  flex: 1;
  min-width: 160px;
  padding: 18px 24px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  font-family: var(--font-ja);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gray-300);
  cursor: pointer;
  transition: all 0.3s var(--ease);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.tab-btn:hover { color: var(--gray-700); }
.tab-btn.active {
  color: var(--red);
  border-bottom-color: var(--red);
}

/* サービスパネル */
.service-panels { position: relative; min-height: 420px; }
.service-panel {
  display: none;
  grid-template-columns: 1fr 1.6fr;
  gap: 80px;
  align-items: center;
  animation: fadeInPanel 0.5s var(--ease-out) forwards;
}
.service-panel.active { display: grid; }

@keyframes fadeInPanel {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  background: var(--gray-100);
  border-radius: 4px;
  overflow: hidden;
}
.panel-icon-wrap {
  width: 60%;
  height: 60%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.panel-svg { width: 100%; height: 100%; }
.panel-number {
  position: absolute;
  bottom: 20px;
  right: 24px;
  font-family: var(--font-en);
  font-size: 5rem;
  font-weight: 900;
  color: rgba(0,0,0,0.06);
  line-height: 1;
}

.panel-content h3 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 900;
  color: var(--black);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.panel-lead {
  font-size: 0.92rem;
  color: var(--gray-500);
  line-height: 2;
  margin-bottom: 28px;
  border-left: 3px solid var(--red);
  padding-left: 18px;
}
.panel-list { margin-bottom: 28px; }
.panel-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  font-size: 0.88rem;
  color: var(--gray-700);
}
.panel-list li:last-child { border-bottom: none; }
.list-tag {
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--red);
  background: var(--red-light);
  padding: 3px 8px;
  border-radius: 2px;
  white-space: nowrap;
  min-width: 48px;
  text-align: center;
}
.panel-client {
  font-size: 0.78rem;
  color: var(--gray-300);
  padding-top: 16px;
  border-top: 1px solid rgba(0,0,0,0.08);
}
.client-label {
  font-weight: 700;
  color: var(--gray-500);
  margin-right: 8px;
}
.shop-btns {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}
.shop-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 2px;
  font-size: 0.88rem;
  font-weight: 700;
  transition: opacity 0.2s;
  color: var(--white);
}
.shop-link:hover { opacity: 0.85; }
.shop-link.yahoo { background: #FF0033; }
.shop-link.rakuten { background: #BF0000; }

/* ===== STRENGTH ===== */
.strength {
  background: var(--dark);
  overflow: hidden;
}
.strength-inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  min-height: 100vh;
}
.strength-left {
  position: relative;
  padding: 120px 60px;
  border-right: 1px solid rgba(255,255,255,0.06);
}
.strength-sticky {
  position: sticky;
  top: 120px;
}
.strength-sub {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.4);
  line-height: 2;
  margin-top: 24px;
}
.strength-right {
  padding: 120px 60px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.strength-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 32px;
  align-items: start;
  padding: 52px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s;
}
.strength-item:first-child { padding-top: 0; }
.strength-item:last-child { border-bottom: none; }
.strength-num {
  font-family: var(--font-en);
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--red);
  line-height: 1;
  opacity: 0.7;
}
.strength-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.strength-body p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.45);
  line-height: 2;
}

/* ===== ABOUT ===== */
.about {
  padding: 120px 0;
  background: var(--gray-100);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-message-title {
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  font-weight: 900;
  color: var(--black);
  margin-bottom: 28px;
  line-height: 1.5;
}
.about-message p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 2.1;
  margin-bottom: 20px;
}
.about-message strong { color: var(--black); font-weight: 700; }
.about-logo-wrap {
  margin-top: 40px;
  max-width: 180px;
}
.about-table-wrap {
  background: var(--white);
  border-radius: 4px;
  padding: 40px;
  box-shadow: 0 4px 40px rgba(0,0,0,0.06);
}
.about-table { width: 100%; border-collapse: collapse; }
.about-table th,
.about-table td {
  padding: 18px 0;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  vertical-align: top;
  font-size: 0.88rem;
  text-align: left;
}
.about-table tr:last-child th,
.about-table tr:last-child td { border-bottom: none; }
.about-table th {
  color: var(--red);
  font-weight: 700;
  width: 100px;
  padding-right: 20px;
  white-space: nowrap;
}
.about-table td { color: var(--gray-700); line-height: 1.9; }
.map-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 24px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--red);
  border-bottom: 1px solid var(--red);
  padding-bottom: 2px;
  transition: opacity 0.2s;
}
.map-link:hover { opacity: 0.7; }

/* ===== RECRUIT ===== */
.recruit {
  padding: 120px 0;
  background: var(--white);
  position: relative;
  overflow: hidden;
}
.recruit-bg-text {
  position: absolute;
  bottom: -20px;
  left: -20px;
  font-family: var(--font-en);
  font-size: clamp(100px, 18vw, 220px);
  font-weight: 900;
  color: rgba(0,0,0,0.03);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.05em;
}
.recruit-hero {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
  margin-bottom: 72px;
}
.recruit-message h3 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 900;
  color: var(--black);
  line-height: 1.4;
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}
.recruit-message h3 em {
  font-style: normal;
  color: var(--red);
}
.recruit-message p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 2.1;
  margin-bottom: 18px;
}
.recruit-cards { display: flex; flex-direction: column; gap: 20px; }
.recruit-card {
  background: var(--gray-100);
  padding: 28px 32px;
  border-radius: 4px;
  border-left: 3px solid var(--red);
  transition: box-shadow 0.3s, transform 0.3s;
}
.recruit-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateX(4px);
}
.rcard-num {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--red);
  margin-bottom: 8px;
}
.recruit-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 8px;
}
.recruit-card p {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.9;
}
.recruit-cta { text-align: center; }

/* ===== CONTACT ===== */
.contact {
  padding: 120px 0;
  background: var(--gray-100);
}
.contact-form { max-width: 800px; margin: 0 auto; }
.form-row { margin-bottom: 24px; }
.form-row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--gray-700);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.req {
  display: inline-block;
  background: var(--red);
  color: var(--white);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 2px;
  margin-left: 8px;
  vertical-align: middle;
  letter-spacing: 0.04em;
}
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 2px;
  font-family: var(--font-ja);
  font-size: 0.9rem;
  color: var(--black);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(196,30,30,0.08);
}
.form-field textarea { resize: vertical; }
.select-wrap {
  position: relative;
}
.select-wrap select {
  width: 100%;
  padding: 14px 18px;
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 2px;
  font-family: var(--font-ja);
  font-size: 0.9rem;
  color: var(--black);
  outline: none;
  appearance: none;
  cursor: pointer;
  transition: border-color 0.2s;
}
.select-wrap select:focus { border-color: var(--red); }
.select-arrow {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--gray-500);
}
.form-submit { text-align: center; margin-top: 12px; }

/* ===== FOOTER ===== */
.footer {
  background: var(--black);
  padding: 80px 0 0;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  gap: 60px;
}
.footer-logo-svg {
  height: 52px;
  width: auto;
  color: rgba(255,255,255,0.6);
  margin-bottom: 18px;
}
.about-logo-svg {
  height: 80px;
  width: auto;
}
.footer-tagline {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.06em;
}
.footer-nav {
  display: flex;
  gap: 60px;
}
.fnav-head {
  font-family: var(--font-en);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.3);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer-nav-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-nav-col a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  transition: color 0.2s;
}
.footer-nav-col a:hover { color: var(--white); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 0;
}
.footer-bottom p {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.2);
}
.footer-address {
  font-family: var(--font-ja) !important;
  letter-spacing: 0.04em !important;
}

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 48px;
  height: 48px;
  background: var(--red);
  color: var(--white);
  border: none;
  border-radius: 2px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 400;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s var(--ease);
  pointer-events: none;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover { background: var(--red-dark); }

/* ===== REVEAL ANIMATION ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== KEYFRAMES ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .strength-inner { grid-template-columns: 1fr; }
  .strength-left { padding: 80px 40px 40px; }
  .strength-sticky { position: static; }
  .strength-right { padding: 40px 40px 80px; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--white);
    padding: 28px 20px;
    gap: 20px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.1);
  }
  .nav-links.open a { color: var(--gray-700); font-size: 1rem; }
  .hamburger { display: flex; }

  .hero-content { padding-top: 120px; padding-bottom: 80px; }
  .hero-actions { flex-direction: column; }
  .hero-side-text { display: none; }

  .numbers-grid { grid-template-columns: repeat(2, 1fr); }
  .number-item { border-bottom: 1px solid rgba(255,255,255,0.15); }
  .number-item:nth-child(2) { border-right: none; }

  .services { padding: 80px 0; }
  .service-tabs { display: grid; grid-template-columns: 1fr 1fr; overflow-x: visible; }
  .tab-btn { min-width: 0; padding: 14px 12px; font-size: 0.82rem; text-align: center; }
  .service-panel.active { grid-template-columns: 1fr; gap: 40px; }
  .panel-visual { aspect-ratio: 16/7; }

  .about { padding: 80px 0; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }

  .recruit { padding: 80px 0; }
  .recruit-hero { grid-template-columns: 1fr; gap: 48px; }

  .contact { padding: 80px 0; }
  .form-row.two { grid-template-columns: 1fr; }

  .footer-top { flex-direction: column; gap: 40px; }
  .footer-nav { flex-wrap: wrap; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .back-to-top { bottom: 20px; right: 20px; }
  .message-section { padding: 80px 0; }
  .message-body { padding: 40px 32px; }
}

/* ===== 代表メッセージ ===== */
.message-section {
  padding: 120px 0;
  background: var(--gray-100);
}
.message-inner {
  max-width: 800px;
  margin: 0 auto;
}
.message-body {
  background: var(--white);
  border-left: 4px solid var(--red);
  padding: 56px 64px;
  border-radius: 2px;
}
.message-lead {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 28px;
  line-height: 1.6;
}
.message-body p {
  color: var(--gray-700);
  margin-bottom: 20px;
  line-height: 2;
}
.message-sig {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-100);
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
}
.message-company {
  font-size: 0.85rem;
  color: var(--gray-500);
  letter-spacing: 0.05em;
}
.message-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--black);
  letter-spacing: 0.05em;
}

/* SVGハードコード色をテーマ色に追従させる */
.about-logo-svg polygon { fill: var(--red); }
.map-link svg path { fill: var(--red); }