/* ==========================================
   東北冶金工業株式会社 — Corporate Website
   Design: Industrial Bronze × Dark Steel
   ========================================== */

/* ---------- CSS Variables ---------- */
:root {
  --bronze:       #CD7F32;
  --bronze-light: #E8A955;
  --bronze-dark:  #8B4513;
  --bronze-deep:  #4A2400;
  --steel-dark:   #0D0D0D;
  --steel:        #1A1A1A;
  --steel-mid:    #2A2A2A;
  --steel-light:  #3A3A3A;
  --white:        #FFFFFF;
  --off-white:    #F5F0EB;
  --light-gray:   #F0EDE8;
  --text-main:    #1A1A1A;
  --text-sub:     #555555;
  --text-muted:   #888888;

  --font-serif:  'Noto Serif JP', serif;
  --font-sans:   'Noto Sans JP', sans-serif;
  --font-en:     'Oswald', sans-serif;

  --radius:      4px;
  --transition:  0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow:      0 4px 24px rgba(0,0,0,0.12);
  --shadow-lg:   0 12px 48px rgba(0,0,0,0.18);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  color: var(--text-main);
  background: var(--white);
  line-height: 1.75;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ---------- Container ---------- */
.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}

/* ---------- Section Common ---------- */
.section { padding: 100px 0; }
.section--dark { background: var(--steel); color: var(--white); }
.section--light { background: var(--light-gray); }
.section--bronze-dark { background: linear-gradient(135deg, #1A0D00 0%, #2A1500 50%, #1A0D00 100%); color: var(--white); }

.section__header { margin-bottom: 60px; }
.section__header--center { text-align: center; }

.section__label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--bronze);
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-left: 2px;
}
.section__label--bronze { color: var(--bronze-light); }

.section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-main);
  letter-spacing: 0.02em;
}
.section__title--light { color: var(--white); }

.section__desc {
  margin-top: 20px;
  font-size: 1rem;
  color: var(--text-sub);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.section__desc--light { color: rgba(255,255,255,0.7); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.12);
  opacity: 0;
  transition: var(--transition);
}
.btn:hover::after { opacity: 1; }

.btn--primary {
  background: var(--bronze);
  color: var(--white);
  border-color: var(--bronze);
}
.btn--primary:hover {
  background: var(--bronze-dark);
  border-color: var(--bronze-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(205,127,50,0.35);
}

.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}
.btn--ghost:hover {
  border-color: var(--bronze);
  color: var(--bronze);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--bronze);
  border-color: var(--bronze);
}
.btn--outline:hover {
  background: var(--bronze);
  color: var(--white);
  transform: translateY(-2px);
}

.btn--full { width: 100%; justify-content: center; }

/* ==========================================
   HEADER
   ========================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.header.scrolled {
  background: rgba(10,10,10,0.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 24px rgba(0,0,0,0.5);
  border-bottom: 1px solid rgba(205,127,50,0.15);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 40px;
}
.header__logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.2;
}
.header__logo-en {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: var(--bronze);
  font-weight: 400;
}
.header__logo-ja {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.05em;
}
.header__nav-list {
  display: flex;
  align-items: center;
  gap: 36px;
}
.header__nav-list a {
  font-size: 0.82rem;
  font-weight: 400;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.05em;
  transition: color var(--transition);
  position: relative;
}
.header__nav-list a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--bronze);
  transition: width var(--transition);
}
.header__nav-list a:hover { color: var(--bronze); }
.header__nav-list a:hover::after { width: 100%; }
.header__nav-cta {
  background: var(--bronze) !important;
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-weight: 500 !important;
}
.header__nav-cta::after { display: none !important; }
.header__nav-cta:hover { background: var(--bronze-dark) !important; }

.header__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.header__menu-btn span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
  border-radius: 2px;
}

/* ==========================================
   HERO
   ========================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10,10,10,0.85) 0%,
    rgba(10,10,10,0.6) 50%,
    rgba(10,10,10,0.75) 100%
  );
  z-index: 1;
}
.hero__bg-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: brightness(0.55) saturate(0.9);
}
.hero__content {
  position: relative;
  z-index: 2;
  padding: 0 80px;
  padding-top: 72px;
  max-width: 900px;
  animation: heroFadeIn 1.2s ease forwards;
}
@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero__eyebrow {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: var(--bronze);
  margin-bottom: 24px;
  font-weight: 400;
  opacity: 0;
  animation: heroFadeIn 1s ease 0.2s forwards;
}
.hero__title-line1,
.hero__title-line2 { display: block; }

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  letter-spacing: 0.04em;
  margin-bottom: 28px;
  opacity: 0;
  animation: heroFadeIn 1s ease 0.4s forwards;
}
.hero__title em {
  font-style: normal;
  color: var(--bronze);
  position: relative;
}
.hero__title em::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--bronze), transparent);
  border-radius: 2px;
}
.hero__subtitle {
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  color: rgba(255,255,255,0.72);
  line-height: 1.85;
  max-width: 520px;
  margin-bottom: 40px;
  font-weight: 300;
  opacity: 0;
  animation: heroFadeIn 1s ease 0.6s forwards;
}
.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: heroFadeIn 1s ease 0.8s forwards;
}
.hero__scroll-indicator {
  position: absolute;
  bottom: 120px;
  left: 80px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 2;
  opacity: 0;
  animation: heroFadeIn 1s ease 1.2s forwards;
}
.hero__scroll-indicator span {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.4);
  font-weight: 300;
}
.hero__scroll-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, rgba(205,127,50,0.6), transparent);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--bronze);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { left: -100%; }
  100% { left: 100%; }
}
.hero__stats {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  align-items: stretch;
  background: rgba(10,10,10,0.88);
  border-top: 1px solid rgba(205,127,50,0.2);
  backdrop-filter: blur(8px);
  opacity: 0;
  animation: heroFadeIn 1s ease 1s forwards;
}
.hero__stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 16px;
  gap: 4px;
}
.hero__stat-num {
  font-family: var(--font-en);
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 600;
  color: var(--bronze);
  line-height: 1;
}
.hero__stat-num sup {
  font-size: 0.55em;
  color: var(--bronze-light);
}
.hero__stat-label {
  font-family: var(--font-en);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
}
.hero__stat-divider {
  width: 1px;
  background: rgba(205,127,50,0.15);
  align-self: stretch;
}

/* ==========================================
   ABOUT
   ========================================== */
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about__visual { position: relative; }
.about__visual-frame {
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.about__visual-frame::before {
  content: '';
  position: absolute;
  top: -6px;
  left: -6px;
  right: 6px;
  bottom: 6px;
  border: 1.5px solid var(--bronze);
  border-radius: 2px;
  z-index: -1;
  opacity: 0.4;
}
.about__photo {
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: center 40%;
  display: block;
  filter: brightness(0.92) saturate(0.85);
}
.about__photo-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 10px 20px;
  font-family: var(--font-en);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--bronze);
  background: rgba(10,10,10,0.75);
  backdrop-filter: blur(4px);
}
.about__visual-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 100px;
  height: 100px;
  background: var(--bronze);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(205,127,50,0.4);
}
.about__visual-badge-year {
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}
.about__visual-badge-text {
  font-family: var(--font-en);
  font-size: 0.52rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.8);
}
.about__lead {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-main);
  line-height: 1.8;
  margin-bottom: 20px;
  border-left: 3px solid var(--bronze);
  padding-left: 16px;
}
.about__text {
  font-size: 0.94rem;
  color: var(--text-sub);
  line-height: 1.85;
  margin-bottom: 16px;
}
.about__values {
  margin: 32px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.about__value {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.about__value-icon {
  color: var(--bronze);
  font-size: 0.7rem;
  margin-top: 4px;
  flex-shrink: 0;
}
.about__value strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 2px;
}
.about__value span {
  font-size: 0.84rem;
  color: var(--text-sub);
}

/* ==========================================
   TECHNOLOGY
   ========================================== */
.tech__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(205,127,50,0.1);
  border: 1px solid rgba(205,127,50,0.1);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 80px;
}
.tech__card {
  background: rgba(255,255,255,0.03);
  padding: 40px 32px;
  transition: background var(--transition);
  position: relative;
}
.tech__card--featured {
  background: rgba(205,127,50,0.08);
  grid-row: 1;
}
.tech__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--bronze), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.tech__card:hover { background: rgba(205,127,50,0.1); }
.tech__card:hover::before { opacity: 1; }
.tech__card--featured::before { opacity: 0.6; }

.tech__card-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 24px;
}
.tech__card-icon svg { width: 100%; height: 100%; }
.tech__card-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.tech__card-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-bottom: 20px;
}
.tech__card-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tech__card-specs span {
  font-family: var(--font-en);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--bronze);
  border: 1px solid rgba(205,127,50,0.3);
  padding: 3px 10px;
  border-radius: 2px;
  background: rgba(205,127,50,0.06);
}

/* 主要製品 */
.products { border-top: 1px solid rgba(205,127,50,0.15); padding-top: 60px; }
.products__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 40px;
}
.products__photo-wrap {
  flex-shrink: 0;
  width: 280px;
  position: relative;
}
.products__photo {
  width: 100%;
  height: 200px;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius);
  border: 1px solid rgba(205,127,50,0.25);
  display: block;
}
.products__photo-caption {
  margin-top: 8px;
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.35);
  text-align: center;
}
.products__title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 40px;
}
.products__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.product__item {
  display: flex;
  gap: 20px;
  padding: 32px;
  border: 1px solid rgba(205,127,50,0.12);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.02);
  transition: var(--transition);
}
.product__item:hover {
  border-color: rgba(205,127,50,0.4);
  background: rgba(205,127,50,0.05);
  transform: translateY(-4px);
}
.product__num {
  font-family: var(--font-en);
  font-size: 2rem;
  font-weight: 700;
  color: rgba(205,127,50,0.2);
  line-height: 1;
  flex-shrink: 0;
}
.product__info h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
}
.product__info p {
  font-size: 0.84rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.75;
}

/* ==========================================
   GALLERY
   ========================================== */
.gallery { background: var(--steel-dark); }
.gallery__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 280px 280px;
  gap: 3px;
}
.gallery__item {
  position: relative;
  overflow: hidden;
}
.gallery__item--large {
  grid-row: 1 / 3;
}
.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.4,0,0.2,1), filter 0.6s ease;
  filter: brightness(0.75) saturate(0.8);
}
.gallery__item:hover img {
  transform: scale(1.05);
  filter: brightness(0.85) saturate(1);
}
.gallery__item-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 20px 24px;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.35s ease;
}
.gallery__item:hover .gallery__item-overlay { opacity: 1; }
.gallery__item-overlay span {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.85);
  border-left: 2px solid var(--bronze);
  padding-left: 10px;
}
@media (max-width: 720px) {
  .gallery__grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: repeat(3, 200px);
  }
  .gallery__item--large { grid-row: 1 / 2; grid-column: 1 / 3; }
}

/* ==========================================
   PROCESS
   ========================================== */
.process__timeline {
  display: flex;
  align-items: flex-start;
  gap: 0;
  overflow-x: auto;
  padding-bottom: 8px;
}
.process__step {
  flex: 1;
  min-width: 180px;
  position: relative;
}
.process__step-num {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--bronze);
  margin-bottom: 16px;
}
.process__step-content {
  padding: 32px 24px;
  background: var(--light-gray);
  border-radius: var(--radius);
  border-top: 3px solid transparent;
  transition: var(--transition);
  height: 100%;
}
.process__step-content:hover {
  border-top-color: var(--bronze);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.process__step-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  color: var(--bronze-dark);
}
.process__step-icon--hot { color: #CC4400; }
.process__step-icon svg { width: 100%; height: 100%; }
.process__step-content h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}
.process__step-content p {
  font-size: 0.82rem;
  color: var(--text-sub);
  line-height: 1.75;
}
.process__arrow {
  font-size: 1.2rem;
  color: var(--bronze);
  opacity: 0.5;
  padding: 0 8px;
  margin-top: 72px;
  flex-shrink: 0;
}

/* ==========================================
   STRENGTH
   ========================================== */
.strength__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: rgba(205,127,50,0.08);
  border-radius: var(--radius);
  overflow: hidden;
}
.strength__item {
  padding: 52px 48px;
  background: rgba(255,255,255,0.02);
  transition: background var(--transition);
  position: relative;
}
.strength__item:hover { background: rgba(205,127,50,0.06); }
.strength__item-num {
  font-family: var(--font-en);
  font-size: 3.5rem;
  font-weight: 700;
  color: rgba(205,127,50,0.15);
  line-height: 1;
  margin-bottom: 16px;
}
.strength__item h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.strength__item p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.85;
}

/* ==========================================
   COMPANY
   ========================================== */
.company__inner {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 60px;
  align-items: start;
}
.company__table {
  width: 100%;
  border-collapse: collapse;
}
.company__table tr { border-bottom: 1px solid #E8E4DF; }
.company__table tr:first-child { border-top: 1px solid #E8E4DF; }
.company__table th {
  width: 160px;
  padding: 18px 0;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-sub);
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}
.company__table td {
  padding: 18px 0 18px 20px;
  font-size: 0.9rem;
  color: var(--text-main);
  line-height: 1.7;
}
.company__map-inner {
  position: sticky;
  top: 100px;
  background: var(--light-gray);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid #E0D8D0;
}
.company__map-placeholder svg { width: 100%; height: auto; display: block; }
.company__map-info {
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.company__map-info p {
  font-size: 0.84rem;
  color: var(--text-sub);
}

/* ==========================================
   NEWS
   ========================================== */
.news__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid #D8D0C8;
  margin-bottom: 40px;
}
.news__item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid #D8D0C8;
  transition: var(--transition);
}
.news__item:hover { background: rgba(205,127,50,0.04); padding-left: 12px; }
.news__date {
  font-family: var(--font-en);
  font-size: 0.82rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-weight: 400;
  letter-spacing: 0.05em;
}
.news__tag {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 2px;
  white-space: nowrap;
  flex-shrink: 0;
}
.news__tag--info  { background: rgba(205,127,50,0.12); color: var(--bronze-dark); }
.news__tag--tech  { background: rgba(26,90,180,0.1);  color: #1A4FB8; }
.news__tag--event { background: rgba(16,140,80,0.1);  color: #0D7A44; }
.news__title {
  font-size: 0.92rem;
  color: var(--text-main);
  font-weight: 400;
  transition: color var(--transition);
}
.news__title:hover { color: var(--bronze); }
.news__more { text-align: center; }

/* ==========================================
   CONTACT
   ========================================== */
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: start;
}
.contact__desc {
  margin-top: 20px;
  margin-bottom: 40px;
  font-size: 0.92rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.85;
}
.contact__info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.contact__info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact__info-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  color: var(--bronze);
}
.contact__info-item small {
  display: block;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.contact__info-item strong {
  display: block;
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

/* Contact Form */
.contact__form {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(205,127,50,0.15);
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.form__group { display: flex; flex-direction: column; gap: 8px; }
.form__group label {
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  display: flex;
  align-items: center;
  gap: 8px;
}
.form__required {
  font-size: 0.65rem;
  color: var(--bronze);
  border: 1px solid var(--bronze);
  padding: 1px 6px;
  border-radius: 2px;
}
.form__group input,
.form__group select,
.form__group textarea {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--white);
  transition: border-color var(--transition);
  outline: none;
  -webkit-appearance: none;
}
.form__group input::placeholder,
.form__group textarea::placeholder { color: rgba(255,255,255,0.25); }
.form__group select option { background: #1A1A1A; color: var(--white); }
.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  border-color: var(--bronze);
  background: rgba(205,127,50,0.06);
}
.form__group textarea { resize: vertical; }

/* ==========================================
   FOOTER
   ========================================== */
.footer {
  background: var(--steel-dark);
  border-top: 1px solid rgba(205,127,50,0.12);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  padding: 60px 0 48px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer__logo {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 16px;
}
.footer__logo-en {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--bronze);
}
.footer__logo-ja {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}
.footer__tagline {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  margin-bottom: 16px;
  font-style: italic;
}
.footer__address {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
  line-height: 1.8;
}
.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.footer__nav-col h4 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--bronze);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.footer__nav-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__nav-col a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition);
}
.footer__nav-col a:hover { color: var(--bronze); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
}
.footer__bottom p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.25);
}
.footer__bottom-links {
  display: flex;
  gap: 24px;
}
.footer__bottom-links a {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.25);
  transition: color var(--transition);
}
.footer__bottom-links a:hover { color: var(--bronze); }

/* ==========================================
   ANIMATIONS / SCROLL
   ========================================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 1024px) {
  .tech__grid { grid-template-columns: repeat(2, 1fr); }
  .about__inner { gap: 48px; }
}

@media (max-width: 900px) {
  .section { padding: 72px 0; }
  .header__nav { display: none; }
  .header__menu-btn { display: flex; }
  .header__inner { padding: 0 24px; }
  .hero__content { padding: 0 24px; padding-top: 72px; }
  .hero__scroll-indicator { left: 24px; }
  .about__inner { grid-template-columns: 1fr; }
  .about__visual { display: none; }
  .contact__inner { grid-template-columns: 1fr; gap: 40px; }
  .company__inner { grid-template-columns: 1fr; }
  .company__map-inner { position: static; }
  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
  .footer__nav { grid-template-columns: repeat(3, 1fr); }
  .strength__grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .tech__grid { grid-template-columns: 1fr; }
  .products__list { grid-template-columns: 1fr; }
  .hero__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }
  .hero__stat-divider { display: none; }
  .process__timeline {
    flex-direction: column;
  }
  .process__arrow { display: none; }
  .process__step { min-width: unset; width: 100%; }
  .footer__nav { grid-template-columns: repeat(2, 1fr); }
  .footer__bottom { flex-direction: column; gap: 12px; text-align: center; }
  .contact__form { padding: 24px; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 2rem; }
  .hero__content { padding: 0 20px; }
  .container { width: 94%; }
  .section { padding: 56px 0; }
  .footer__nav { grid-template-columns: 1fr 1fr; }
}