/* ============================================
   NAGASHIRO GROUP - Corporate Website
   Design language: private-bank editorial
   Ink navy / champagne gold hairlines / warm paper
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* accent: champagne gold (replaces legacy red; token names kept for sub-page CSS) */
  --color-primary: #9c7e52;
  --color-primary-dark: #7e6440;
  --color-gold-light: #c9ac78;
  --color-gold-hair: rgba(201, 172, 120, 0.35);
  /* surfaces */
  --color-navy: #0e1d31;
  --color-navy-light: #16273f;
  --color-ink: #0a1422;
  --color-text: #32363c;
  --color-text-light: #75716a;
  --color-bg: #fdfcfa;
  --color-bg-gray: #f4f1eb;
  --color-border: #e4ded2;
  /* type */
  --font-serif: 'Shippori Mincho', 'Noto Serif JP', 'Noto Serif SC', 'Yu Mincho', YuMincho, serif;
  --font-sans: 'Noto Sans JP', 'Noto Sans SC', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --font-display: 'Marcellus', 'Shippori Mincho', 'Noto Serif JP', serif;
  --font-en: 'Cormorant Garamond', 'Shippori Mincho', 'Noto Serif JP', serif;
  --transition: 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
  --container: 1180px;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  line-height: 1.9;
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll {
  overflow: hidden;
}

::selection {
  background: var(--color-navy);
  color: #f4ead2;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(253, 252, 250, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.header--sticky {
  border-bottom-color: var(--color-border);
}

.header-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
  transition: height var(--transition);
}

.header--sticky .header-inner {
  height: 68px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.logo-main {
  font-family: var(--font-en);
  font-size: 25px;
  font-weight: 600;
  color: var(--color-navy);
  letter-spacing: 0.22em;
}

.logo-sub {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 400;
  color: var(--color-primary);
  letter-spacing: 0.42em;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-link {
  display: block;
  padding: 8px 15px;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--color-navy);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 55%;
}

.nav-link--contact {
  margin-left: 16px;
  background: var(--color-navy);
  color: #f6f2ea;
  border: 1px solid var(--color-navy);
  border-radius: 0;
  padding: 10px 26px;
  letter-spacing: 0.22em;
}

.nav-link--contact::after {
  display: none;
}

.nav-link--contact:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fdfcfa;
}

/* Nav Dropdown */
.nav-item--has-dropdown {
  position: relative;
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 168px;
  background: #fdfcfa;
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-primary);
  border-radius: 0;
  box-shadow: 0 18px 40px rgba(14, 29, 49, 0.1);
  padding: 10px 0;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  z-index: 100;
}

.nav-item--has-dropdown:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
}

.nav-dropdown-link {
  display: block;
  padding: 9px 24px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--color-text);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-dropdown-link:hover {
  background: var(--color-bg-gray);
  color: var(--color-primary-dark);
}

.nav-dropdown-hub {
  font-weight: 500 !important;
  color: var(--color-primary-dark) !important;
}

.nav-dropdown-divider {
  height: 1px;
  background: var(--color-border);
  margin: 6px 16px;
}

/* Language Dropdown */
.lang-dropdown {
  position: relative;
  margin-left: 14px;
  z-index: 1002;
}

.lang-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 7px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: 7px 15px 7px 13px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 400;
  color: var(--color-navy);
  letter-spacing: 0.08em;
  transition: all var(--transition);
  white-space: nowrap;
}

.lang-dropdown-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}

.lang-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

.lang-current {
  line-height: 1;
}

.lang-chevron {
  font-size: 9px;
  line-height: 1;
  color: var(--color-primary);
  transition: transform 0.2s ease;
}

.lang-dropdown.is-open .lang-chevron {
  transform: rotate(180deg);
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 132px;
  background: #fdfcfa;
  border: 1px solid var(--color-border);
  border-radius: 0;
  box-shadow: 0 18px 40px rgba(14, 29, 49, 0.1);
  padding: 4px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.2s ease;
  list-style: none;
}

.lang-dropdown.is-open .lang-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 9px 18px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 400;
  color: var(--color-text);
  letter-spacing: 0.05em;
  transition: all 0.15s ease;
  text-align: left;
}

.lang-option:hover {
  background: var(--color-bg-gray);
  color: var(--color-primary-dark);
}

.lang-option.active {
  color: var(--color-primary-dark);
  font-weight: 500;
}

.lang-option .lang-dot {
  width: 4px;
  height: 4px;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 1px;
  background: var(--color-navy);
  transition: all 0.3s;
}

.hamburger.is-active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.is-active span:nth-child(2) {
  opacity: 0;
}

.hamburger.is-active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero --- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  max-height: 960px;
  overflow: hidden;
  background: var(--color-ink);
}

.hero-slider {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1.4s ease-in-out, visibility 1.4s;
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

/* shared field: deep ink with faint vertical hairlines */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(201, 172, 120, 0.045) 0px,
    rgba(201, 172, 120, 0.045) 1px,
    transparent 1px,
    transparent 160px
  );
}

/* shared field: concentric hairline arcs, anchored right */
.hero-bg::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -14vw;
  transform: translateY(-50%);
  width: 58vw;
  height: 58vw;
  min-width: 620px;
  min-height: 620px;
  border-radius: 50%;
  border: 1px solid rgba(201, 172, 120, 0.16);
  box-shadow:
    inset 0 0 0 1px transparent,
    0 0 0 90px rgba(201, 172, 120, 0.0);
  background:
    radial-gradient(circle at center,
      transparent 0,
      transparent calc(50% - 241px),
      rgba(201, 172, 120, 0.10) calc(50% - 240px),
      transparent calc(50% - 239px),
      transparent calc(50% - 161px),
      rgba(201, 172, 120, 0.12) calc(50% - 160px),
      transparent calc(50% - 159px),
      transparent calc(50% - 81px),
      rgba(201, 172, 120, 0.14) calc(50% - 80px),
      transparent calc(50% - 79px));
  pointer-events: none;
}

.hero-bg--1 {
  background:
    radial-gradient(120% 130% at 78% 30%, rgba(28, 52, 84, 0.85) 0%, transparent 55%),
    linear-gradient(150deg, #11233c 0%, #0c1828 46%, #080f1a 100%);
}

.hero-bg--2 {
  background:
    radial-gradient(110% 120% at 22% 70%, rgba(26, 47, 75, 0.8) 0%, transparent 52%),
    linear-gradient(205deg, #0f2036 0%, #0b1626 50%, #070d17 100%);
}

.hero-bg--2::after {
  right: auto;
  left: -18vw;
}

.hero-bg--3 {
  background:
    radial-gradient(130% 110% at 60% 95%, rgba(23, 44, 70, 0.85) 0%, transparent 58%),
    linear-gradient(170deg, #0d1c30 0%, #0a1525 55%, #070e18 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  height: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 56px;
  padding-top: 88px;
}

.hero-subtitle {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0.5em;
  color: var(--color-gold-light);
  margin-bottom: 36px;
  text-transform: uppercase;
}

.hero-subtitle::before {
  content: '';
  display: block;
  width: 64px;
  height: 1px;
  background: var(--color-gold-hair);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(40px, 5.6vw, 76px);
  font-weight: 500;
  color: #f4efe6;
  line-height: 1.32;
  margin-bottom: 36px;
  letter-spacing: 0.08em;
}

.hero-desc {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 300;
  color: rgba(229, 222, 208, 0.66);
  line-height: 2.3;
  letter-spacing: 0.08em;
  margin-bottom: 56px;
}

.hero-btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.32em;
  color: #ece5d6;
  border: 1px solid var(--color-gold-hair);
  padding: 17px 52px;
  transition: all var(--transition);
}

.hero-btn:hover {
  background: var(--color-gold-light);
  border-color: var(--color-gold-light);
  color: var(--color-ink);
}

/* hero entrance choreography */
.hero-slide.active .hero-subtitle,
.hero-slide.active .hero-title,
.hero-slide.active .hero-desc,
.hero-slide.active .hero-btn {
  animation: heroRise 1.1s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

.hero-slide.active .hero-title { animation-delay: 0.15s; }
.hero-slide.active .hero-desc  { animation-delay: 0.3s; }
.hero-slide.active .hero-btn   { animation-delay: 0.45s; }

@keyframes heroRise {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero Indicators */
.hero-indicators {
  position: absolute;
  bottom: 72px;
  left: 56px;
  display: flex;
  gap: 14px;
  z-index: 10;
}

.hero-indicator {
  width: 44px;
  height: 1px;
  background: rgba(236, 229, 214, 0.25);
  border: none;
  cursor: pointer;
  padding: 8px 0;
  background-clip: content-box;
  transition: all var(--transition);
}

.hero-indicator.active {
  background: var(--color-gold-light);
  background-clip: content-box;
  width: 72px;
}

/* Hero Scroll */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  right: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 10;
}

.hero-scroll span {
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.4em;
  color: rgba(236, 229, 214, 0.45);
  writing-mode: vertical-lr;
}

.hero-scroll-line {
  width: 1px;
  height: 52px;
  background: rgba(236, 229, 214, 0.2);
  position: relative;
  overflow: hidden;
}

.hero-scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-gold-light);
  animation: scrollLine 2.4s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { top: -100%; }
  50% { top: 0; }
  100% { top: 100%; }
}

/* --- Sections --- */
.section {
  padding: 140px 0;
  position: relative;
}

.section--gray {
  background: var(--color-bg-gray);
}

.section--dark {
  background: var(--color-navy);
  color: #f0ebe1;
}

.section-header {
  text-align: left;
  margin-bottom: 88px;
  position: relative;
  padding-left: 2px;
}

.section-header--light .section-number {
  color: var(--color-gold-light);
}

.section-header--light .section-title,
.section-header--light .section-title-ja {
  color: #f0ebe1;
}

.section-header--light .section-title::after {
  background: var(--color-gold-hair);
}

.section-number {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--color-primary);
  margin-bottom: 22px;
}

.section-number::after {
  content: '';
  display: block;
  width: 56px;
  height: 1px;
  background: var(--color-gold-hair);
}

.section-title {
  font-family: var(--font-en);
  font-size: clamp(42px, 4.6vw, 60px);
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-navy);
  line-height: 1.1;
  position: relative;
  display: inline-block;
}

.section-title::after {
  display: none;
}

.section-title-ja {
  display: block;
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--color-text-light);
  margin-top: 18px;
  letter-spacing: 0.32em;
}

/* --- Concept --- */
.concept {
  overflow: hidden;
}

.concept-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 100px;
  align-items: start;
}

.concept-heading {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.4vw, 31px);
  font-weight: 500;
  line-height: 2.05;
  color: var(--color-navy);
  margin-bottom: 40px;
  letter-spacing: 0.06em;
}

.concept-text {
  font-size: 15px;
  line-height: 2.4;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.concept-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--color-border);
}

.concept-value-item {
  text-align: center;
  padding: 44px 20px 40px;
  background: transparent;
  border-radius: 0;
  transition: background var(--transition);
  position: relative;
}

.concept-value-item:nth-child(odd) {
  border-right: 1px solid var(--color-border);
}

.concept-value-item:nth-child(-n+2) {
  border-bottom: 1px solid var(--color-border);
}

.concept-value-item:hover {
  transform: none;
  box-shadow: none;
  background: rgba(201, 172, 120, 0.06);
}

.concept-value-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin: 0 auto 18px;
  color: var(--color-primary);
}

.concept-value-icon svg {
  width: 30px;
  height: 30px;
  stroke-width: 1.1;
}

.concept-value-item h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--color-navy);
  margin-bottom: 6px;
}

.concept-value-item p {
  font-family: var(--font-display);
  font-size: 10.5px;
  letter-spacing: 0.26em;
  color: var(--color-text-light);
  text-transform: uppercase;
}

.concept-deco {
  position: absolute;
  top: 80px;
  right: -120px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(156, 126, 82, 0.14);
  border-radius: 50%;
  pointer-events: none;
}

.concept-deco::before {
  content: '';
  position: absolute;
  inset: 36px;
  border: 1px solid rgba(156, 126, 82, 0.08);
  border-radius: 50%;
}

/* --- Service --- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
  counter-reset: svc;
}

.service-card {
  background: transparent;
  border-radius: 0;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
  transition: background var(--transition);
  cursor: pointer;
  counter-increment: svc;
  position: relative;
}

.service-card:hover {
  transform: none;
  box-shadow: none;
  background: var(--color-navy);
}

.service-card-inner {
  padding: 52px 40px 48px;
  position: relative;
}

.service-card-inner::before {
  content: counter(svc, decimal-leading-zero);
  position: absolute;
  top: 44px;
  right: 40px;
  font-family: var(--font-en);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  opacity: 0.85;
  transition: color var(--transition);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 28px;
  margin-left: -6px;
  color: var(--color-primary);
  transition: color var(--transition);
}

.service-icon svg {
  width: 42px;
  height: 42px;
  stroke-width: 1;
}

.service-name {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-navy);
  margin-bottom: 6px;
  transition: color var(--transition);
}

.service-name-en {
  font-family: var(--font-display);
  font-size: 10.5px;
  font-weight: 400;
  letter-spacing: 0.24em;
  color: var(--color-text-light);
  text-transform: uppercase;
  margin-bottom: 22px;
  transition: color var(--transition);
}

.service-desc {
  font-size: 13.5px;
  line-height: 2.1;
  letter-spacing: 0.03em;
  color: var(--color-text);
  margin-bottom: 28px;
  transition: color var(--transition);
}

.service-more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.26em;
  color: var(--color-primary);
  transition: all var(--transition);
}

.service-more .arrow {
  transition: transform var(--transition);
}

.service-card:hover .service-more .arrow {
  transform: translateX(6px);
}

/* inverted state on hover */
.service-card:hover .service-name { color: #f4efe6; }
.service-card:hover .service-desc { color: rgba(229, 222, 208, 0.72); }
.service-card:hover .service-name-en { color: rgba(201, 172, 120, 0.8); }
.service-card:hover .service-icon,
.service-card:hover .service-card-inner::before,
.service-card:hover .service-more { color: var(--color-gold-light); }

/* --- Company --- */
.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table tr {
  border-bottom: 1px solid var(--color-border);
}

.company-table tr:first-child {
  border-top: 1px solid var(--color-border);
}

.company-table th,
.company-table td {
  padding: 20px 0;
  font-size: 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.9;
}

.company-table th {
  width: 130px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-navy);
  font-family: var(--font-serif);
  white-space: nowrap;
  padding-right: 28px;
}

.company-table td {
  color: var(--color-text);
  letter-spacing: 0.03em;
}

.company-history-title {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--color-navy);
  margin-bottom: 48px;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 0;
  width: 1px;
  height: calc(100% - 16px);
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 36px;
  padding-left: 24px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -35px;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-primary);
  box-shadow: none;
}

.timeline-year {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.18em;
  margin-bottom: 8px;
}

.timeline-content h4 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.timeline-content p {
  font-size: 13.5px;
  letter-spacing: 0.03em;
  color: var(--color-text-light);
}

/* --- News --- */
.news-list {
  max-width: 860px;
  margin: 0 auto;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 28px 8px;
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition);
}

.news-item:first-child {
  border-top: 1px solid var(--color-border);
}

.news-item:hover {
  padding-left: 20px;
  background: rgba(201, 172, 120, 0.05);
}

.news-date {
  font-family: var(--font-en);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-text-light);
  white-space: nowrap;
  flex-shrink: 0;
}

.news-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--color-primary-dark);
  border: 1px solid var(--color-gold-hair);
  padding: 3px 14px;
  border-radius: 0;
  white-space: nowrap;
  flex-shrink: 0;
}

.news-title {
  font-size: 14.5px;
  letter-spacing: 0.04em;
  color: var(--color-text);
  transition: color var(--transition);
}

.news-item:hover .news-title {
  color: var(--color-navy);
}

.news-more {
  text-align: center;
  margin-top: 56px;
}

.btn-outline {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--color-navy);
  border: 1px solid var(--color-navy);
  padding: 16px 56px;
  transition: all var(--transition);
}

.btn-outline:hover {
  background: var(--color-navy);
  color: #f4efe6;
}

/* --- Knowledge --- */
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
}

.knowledge-viewall {
  text-align: center;
  margin-top: 56px;
}

.knowledge-card {
  background: transparent;
  border-radius: 0;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
  transition: background var(--transition);
  cursor: pointer;
}

.knowledge-card:hover {
  transform: none;
  box-shadow: none;
  background: var(--color-navy);
}

.knowledge-card-inner {
  padding: 48px 40px 44px;
  position: relative;
}

.knowledge-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 26px;
  margin-left: -6px;
  color: var(--color-primary);
  transition: color var(--transition);
}

.knowledge-icon svg {
  width: 42px;
  height: 42px;
  stroke-width: 1;
}

.knowledge-name {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-navy);
  margin-bottom: 6px;
  transition: color var(--transition);
}

.knowledge-name-en {
  font-family: var(--font-display);
  font-size: 10.5px;
  font-weight: 400;
  letter-spacing: 0.24em;
  color: var(--color-text-light);
  text-transform: uppercase;
  margin-bottom: 20px;
  transition: color var(--transition);
}

.knowledge-desc {
  font-size: 13.5px;
  line-height: 2.1;
  letter-spacing: 0.03em;
  color: var(--color-text);
  margin-bottom: 26px;
  transition: color var(--transition);
}

.knowledge-more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.26em;
  color: var(--color-primary);
  transition: all var(--transition);
}

.knowledge-more .arrow {
  transition: transform var(--transition);
}

.knowledge-card:hover .knowledge-more .arrow {
  transform: translateX(6px);
}

.knowledge-card:hover .knowledge-name { color: #f4efe6; }
.knowledge-card:hover .knowledge-desc { color: rgba(229, 222, 208, 0.72); }
.knowledge-card:hover .knowledge-name-en { color: rgba(201, 172, 120, 0.8); }
.knowledge-card:hover .knowledge-icon,
.knowledge-card:hover .knowledge-more { color: var(--color-gold-light); }

/* --- Recruit --- */
.recruit-content {
  text-align: center;
}

.recruit-heading {
  font-family: var(--font-serif);
  font-size: clamp(26px, 2.6vw, 34px);
  font-weight: 500;
  line-height: 1.9;
  letter-spacing: 0.08em;
  color: var(--color-navy);
  margin-bottom: 28px;
}

.recruit-text {
  font-size: 15px;
  line-height: 2.3;
  letter-spacing: 0.04em;
  color: var(--color-text);
  max-width: 640px;
  margin: 0 auto 56px;
}

.recruit-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 56px;
}

.recruit-card {
  position: relative;
  height: 250px;
  border-radius: 0;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid rgba(156, 126, 82, 0.25);
}

.recruit-card::before {
  content: '';
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(201, 172, 120, 0.22);
  pointer-events: none;
  z-index: 2;
  transition: inset var(--transition);
}

.recruit-card:hover::before {
  inset: 16px;
}

.recruit-card:nth-child(1) {
  background: linear-gradient(155deg, #13253e, #0c1828);
}

.recruit-card:nth-child(2) {
  background: linear-gradient(155deg, #1a2f4b, #101f33);
}

.recruit-card:nth-child(3) {
  background: linear-gradient(155deg, #0e1d31, #080f1a);
}

.recruit-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 36px;
  background: linear-gradient(to top, rgba(5, 10, 17, 0.55), transparent);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 100%;
  transition: all var(--transition);
}

.recruit-card:hover .recruit-card-overlay {
  background: linear-gradient(to top, rgba(5, 10, 17, 0.75), rgba(5, 10, 17, 0.2));
}

.recruit-card-overlay h4 {
  font-family: var(--font-serif);
  font-size: 20px;
  letter-spacing: 0.1em;
  color: #f4efe6;
  margin-bottom: 6px;
}

.recruit-card-overlay p {
  font-family: var(--font-display);
  font-size: 10.5px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(201, 172, 120, 0.75);
}

.btn-primary {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0.26em;
  color: #f4efe6;
  background: var(--color-navy);
  border: 1px solid var(--color-navy);
  padding: 18px 60px;
  border-radius: 0;
  transition: all var(--transition);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: none;
  box-shadow: none;
}

/* --- Contact --- */
.section--dark.contact {
  background:
    radial-gradient(110% 130% at 85% 10%, rgba(28, 52, 84, 0.5) 0%, transparent 55%),
    var(--color-navy);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.contact-block {
  margin-bottom: 32px;
}

.contact-block h3 {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #f4efe6;
  margin-bottom: 6px;
}

.contact-block h3 + p {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.36em;
  color: rgba(201, 172, 120, 0.6);
  margin-bottom: 0;
}

.contact-block h4 {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.32em;
  color: var(--color-gold-light);
  margin-bottom: 10px;
}

.contact-block p {
  font-size: 14px;
  line-height: 1.95;
  letter-spacing: 0.04em;
  color: rgba(240, 235, 225, 0.78);
}

.contact-block a {
  color: rgba(240, 235, 225, 0.78);
}

.contact-block a:hover {
  color: var(--color-gold-light);
}

.contact-map {
  border-radius: 0;
  border: 1px solid rgba(201, 172, 120, 0.25);
  overflow: hidden;
  height: 420px;
  background: var(--color-navy-light);
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  filter: grayscale(85%) contrast(0.95);
}

/* --- Footer --- */
.footer {
  background: var(--color-ink);
  padding: 88px 0 0;
  color: rgba(240, 235, 225, 0.7);
  border-top: 1px solid rgba(201, 172, 120, 0.18);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(240, 235, 225, 0.07);
}

.footer-logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 18px;
}

.footer-logo .logo-main {
  color: #f4efe6;
  font-size: 21px;
}

.footer-logo .logo-sub {
  font-size: 10px;
}

.footer-tagline {
  font-family: var(--font-serif);
  font-size: 13px;
  color: rgba(240, 235, 225, 0.4);
  letter-spacing: 0.18em;
}

.footer-nav h4,
.footer-contact h4 {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--color-gold-light);
  margin-bottom: 26px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.footer-nav a {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: rgba(240, 235, 225, 0.45);
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--color-gold-light);
}

.footer-contact p {
  font-size: 13.5px;
  color: rgba(240, 235, 225, 0.45);
  margin-bottom: 8px;
}

.footer-contact p:first-of-type {
  font-family: var(--font-en);
  font-size: 23px;
  font-weight: 500;
  color: #f4efe6;
  letter-spacing: 0.1em;
}

.footer-contact-btn {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--color-gold-light);
  border: 1px solid rgba(201, 172, 120, 0.4);
  padding: 10px 28px;
  border-radius: 0;
  transition: all var(--transition);
}

.footer-contact-btn:hover {
  background: var(--color-gold-light);
  border-color: var(--color-gold-light);
  color: var(--color-ink);
}

.footer-bottom {
  padding: 28px 0;
  text-align: center;
}

.footer-bottom p {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(240, 235, 225, 0.28);
}

/* --- Scroll Animation --- */
.fade-up {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 1s cubic-bezier(0.22, 0.61, 0.36, 1), transform 1s cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

/* Stagger delay for grid items */
.service-card.fade-up:nth-child(1) { transition-delay: 0s; }
.service-card.fade-up:nth-child(2) { transition-delay: 0.1s; }
.service-card.fade-up:nth-child(3) { transition-delay: 0.2s; }
.service-card.fade-up:nth-child(4) { transition-delay: 0.3s; }
.service-card.fade-up:nth-child(5) { transition-delay: 0.4s; }
.service-card.fade-up:nth-child(6) { transition-delay: 0.5s; }

.concept-value-item.fade-up:nth-child(1) { transition-delay: 0s; }
.concept-value-item.fade-up:nth-child(2) { transition-delay: 0.1s; }
.concept-value-item.fade-up:nth-child(3) { transition-delay: 0.2s; }
.concept-value-item.fade-up:nth-child(4) { transition-delay: 0.3s; }

.timeline-item.fade-up:nth-child(1) { transition-delay: 0s; }
.timeline-item.fade-up:nth-child(2) { transition-delay: 0.15s; }
.timeline-item.fade-up:nth-child(3) { transition-delay: 0.3s; }
.timeline-item.fade-up:nth-child(4) { transition-delay: 0.45s; }
.timeline-item.fade-up:nth-child(5) { transition-delay: 0.6s; }

.knowledge-card.fade-up:nth-child(1) { transition-delay: 0s; }
.knowledge-card.fade-up:nth-child(2) { transition-delay: 0.15s; }
.knowledge-card.fade-up:nth-child(3) { transition-delay: 0.3s; }
.knowledge-card.fade-up:nth-child(4) { transition-delay: 0.45s; }

.recruit-card.fade-up:nth-child(1) { transition-delay: 0s; }
.recruit-card.fade-up:nth-child(2) { transition-delay: 0.15s; }
.recruit-card.fade-up:nth-child(3) { transition-delay: 0.3s; }

/* --- Responsive --- */
/* Keep the 10-item nav on one line on mid-width desktops (added with PRODUCTS, 2026-11-08) */
@media (min-width: 1100px) and (max-width: 1365px) {
  .nav-link {
    white-space: nowrap;
    padding: 8px 10px;
    letter-spacing: 0.1em;
  }
  .header-inner {
    padding: 0 20px;
  }
  .logo-main {
    font-size: 21px;
  }
}

@media (max-width: 1024px) {
  .concept-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .company-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 44px;
  }

  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 82%;
    max-width: 380px;
    height: 100vh;
    background: #fdfcfa;
    z-index: 1000;
    transition: right 0.4s ease;
    padding: 104px 44px 44px;
    box-shadow: -4px 0 30px rgba(14, 29, 49, 0.12);
  }

  .nav.is-open {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
  }

  .nav-link {
    padding: 17px 0;
    font-size: 14px;
    border-bottom: 1px solid var(--color-border);
    width: 100%;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link--contact {
    margin-left: 0;
    margin-top: 28px;
    text-align: center;
    border-bottom: none;
  }

  .section {
    padding: 88px 0;
  }

  .section-header {
    margin-bottom: 52px;
  }

  .section-title {
    font-size: 36px;
    letter-spacing: 0.08em;
  }

  .hero {
    min-height: 540px;
  }

  .hero-content {
    padding: 0 28px;
    padding-top: 88px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    letter-spacing: 0.3em;
    gap: 14px;
  }

  .hero-subtitle::before {
    width: 36px;
  }

  .hero-indicators {
    left: 28px;
    bottom: 48px;
  }

  .hero-scroll {
    display: none;
  }

  .nav-item--has-dropdown {
    width: 100%;
  }

  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0 0 0 16px;
    min-width: auto;
  }

  .nav-dropdown-link {
    padding: 11px 0;
    font-size: 13px;
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-border);
  }

  .knowledge-grid {
    grid-template-columns: 1fr;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .concept-heading {
    font-size: 21px;
    letter-spacing: 0.02em;
    line-height: 1.95;
  }

  .concept-values {
    grid-template-columns: 1fr 1fr;
  }

  .recruit-cards {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .recruit-card {
    height: 190px;
  }

  .recruit-heading {
    font-size: 23px;
  }

  .news-item {
    flex-wrap: wrap;
    gap: 10px 18px;
  }

  .news-title {
    width: 100%;
  }

  .contact-map {
    height: 300px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer {
    padding: 52px 0 0;
  }
}

@media (max-width: 480px) {
  .hero-content {
    padding: 0 20px;
    padding-top: 88px;
  }

  .hero-title {
    font-size: 27px;
  }

  .hero-desc {
    font-size: 13px;
  }

  .concept-values {
    grid-template-columns: 1fr;
  }

  .concept-value-item:nth-child(odd) {
    border-right: none;
  }

  .concept-value-item:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
  }

  .company-table th {
    display: block;
    padding-bottom: 0;
    font-weight: 600;
  }

  .company-table td {
    display: block;
    padding-top: 4px;
  }

  .service-card-inner {
    padding: 40px 28px;
  }
}