/* ============================================================
   CSS Variables
   ============================================================ */
:root {
  --color-base:     #FFFFFF;
  --color-main:     #0A2540;
  --color-sub:      #5A6B7B;
  --color-text:     #1A1A1A;
  --color-text-sub: #666666;
  --color-accent:   #B8860B;
  --color-border:   #E5E5E5;
  --color-tint:     #F5F7FA;
  --font-serif:     'Noto Serif JP', serif;
  --font-sans:      'Noto Sans JP', sans-serif;
  --max-width:      1140px;
  --section-py:     120px;
  --header-h:       72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 17px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-base);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.3;
}

h2 { font-size: 2.35rem; }   /* ~40px */
h3 { font-size: 1.41rem; }   /* ~24px */

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 4px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.94rem;
  letter-spacing: 0.04em;
  transition: background-color 200ms ease-out;
  text-align: center;
  cursor: pointer;
  border: none;
}

.btn--primary {
  background-color: var(--color-main);
  color: #FFFFFF;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: #163d6b;
  outline: none;
}

.btn--accent {
  background-color: var(--color-accent);
  color: #FFFFFF;
}

.btn--accent:hover,
.btn--accent:focus-visible {
  background-color: #9e7409;
  outline: none;
}

.btn--lg {
  padding: 18px 52px;
  font-size: 1rem;
}

/* ============================================================
   Fade-in (Intersection Observer)
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms ease-out, transform 600ms ease-out;
}

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

/* ============================================================
   Header
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--header-h);
  background: var(--color-base);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.header__logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.header__nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__item {
  position: relative;
}

/* Base nav link */
.nav__link,
.nav__link--trigger {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text);
  letter-spacing: 0.02em;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color 200ms ease, border-color 200ms ease;
  cursor: pointer;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  border-radius: 0;
  font-family: var(--font-sans);
}

.nav__link:hover,
.nav__link--trigger:hover,
.nav__link:focus-visible,
.nav__link--trigger:focus-visible {
  color: var(--color-main);
  outline: none;
}

/* Dropdown arrow */
.nav__arrow {
  display: block;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 200ms ease;
  flex-shrink: 0;
}

.nav__item--has-dropdown.is-open .nav__arrow {
  transform: rotate(-135deg) translateY(1px);
}

/* Dropdown panel */
.nav__dropdown {
  position: absolute;
  top: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--color-base);
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-accent);
  min-width: 210px;
  box-shadow: 0 8px 32px rgba(10, 37, 64, 0.10);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 180ms ease, visibility 180ms ease, transform 180ms ease;
  z-index: 300;
}

/* Hover: desktop only */
@media (hover: hover) {
  .nav__item--has-dropdown:hover .nav__dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }
}

/* Click/keyboard open */
.nav__item--has-dropdown.is-open .nav__dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-list {
  padding: 4px 0;
}

.nav__dropdown-link {
  display: block;
  padding: 12px 20px;
  font-size: 0.875rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  transition: background 150ms ease, color 150ms ease;
  white-space: nowrap;
}

.nav__dropdown-link:last-child {
  border-bottom: none;
}

.nav__dropdown-link:hover {
  background: var(--color-tint);
  color: var(--color-main);
}

.header__cta {
  flex-shrink: 0;
  padding: 10px 22px;
  font-size: 0.875rem;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 6px;
  flex-shrink: 0;
  margin-left: auto;
}

.hamburger__line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-main);
  border-radius: 1px;
  transition: transform 300ms ease, opacity 300ms ease;
  transform-origin: center;
}

.hamburger.is-open .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.is-open .hamburger__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.is-open .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   Mobile Menu
   ============================================================ */
.mobile-menu {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  z-index: 199;
  background: var(--color-base);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity 280ms ease;
}

.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu__list {
  width: 100%;
  flex: 1;
}

.mobile-menu__group {
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu__group-title {
  display: block;
  padding: 18px 28px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-sub);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mobile-menu__sub {
  padding-bottom: 8px;
}

.mobile-menu__link {
  display: block;
  padding: 16px 28px;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-main);
  border-bottom: 1px solid var(--color-border);
  transition: background 150ms ease;
}

.mobile-menu__link:hover {
  background: var(--color-tint);
}

.mobile-menu__link--sub {
  font-family: var(--font-sans) !important;
  font-size: 0.9375rem !important;
  font-weight: 400 !important;
  padding-left: 44px !important;
  color: var(--color-text) !important;
  border-bottom: none !important;
  padding-top: 12px !important;
  padding-bottom: 12px !important;
}

.mobile-menu__cta-wrap {
  padding: 28px 28px 40px;
  text-align: center;
}

.mobile-menu__cta-wrap .btn {
  width: 100%;
  display: block;
}

/* ============================================================
   Breadcrumb
   ============================================================ */
.breadcrumb {
  padding: 0 0 28px;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
}

.breadcrumb__item + .breadcrumb__item::before {
  content: '›';
  margin: 0 8px;
  color: rgba(255, 255, 255, 0.35);
}

.breadcrumb__item a {
  color: rgba(255, 255, 255, 0.75);
  transition: color 180ms ease;
}

.breadcrumb__item a:hover {
  color: #FFFFFF;
}

/* ============================================================
   Page Header (inner-page dark banner)
   ============================================================ */
.page-header {
  background: var(--color-main);
  color: #FFFFFF;
  padding: 72px 0 64px;
  min-height: 280px;
  display: flex;
  align-items: flex-end;
}

.company-hero {
  position: relative;
  background-image: url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center bottom;
  background-repeat: no-repeat;
  min-height: 360px;
}

.company-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(10, 37, 64, 0.68);
  z-index: 1;
}

.company-hero > * {
  position: relative;
  z-index: 2;
}

/* ============================================================
   Page Hero — shared bg + overlay (service / works / contact)
   ============================================================ */
.page-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 360px;
  display: flex;
  align-items: center;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(10, 37, 64, 0.68);
  z-index: 1;
}

.page-hero > * {
  position: relative;
  z-index: 2;
}

/* Per-page background images — double-class for specificity over .page-header background shorthand */
.page-hero.service-ai-hero      { background-image: url('../images/ai-bg.jpg'); }
.page-hero.service-recruit-hero { background-image: url('../images/office-bg.jpg'); }
.page-hero.service-bpo-hero     { background-image: url('../images/office-bg.jpg'); }
.page-hero.works-hero           { background-image: url('../images/works-bg.jpg'); }
.page-hero.contact-hero         { background-image: url('../images/hero-bg.jpg'); background-position: center bottom; }

/* Top-page hero bg — double-class for specificity over .hero background shorthand */
.hero.index-hero {
  position: relative;
  background-image: url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center bottom;
  background-repeat: no-repeat;
}

.hero.index-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(10, 37, 64, 0.68);
  z-index: 1;
}

.hero.index-hero > * {
  position: relative;
  z-index: 2;
}


.page-header__inner {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 32px;
}

.page-header__title {
  font-size: 3.5rem;
  color: #FFFFFF;
  margin-bottom: 16px;
  line-height: 1.25;
}

.page-header__subtitle {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.7;
}

/* ============================================================
   Hero (top page)
   ============================================================ */
.hero {
  background: var(--color-main);
  color: #FFFFFF;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__inner {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 80px 32px;
  text-align: center;
}

.hero__title {
  font-size: 4.235rem;   /* ~72px */
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin-bottom: 40px;
}

.hero__lead {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 2;
  font-weight: 300;
  margin-bottom: 56px;
}

/* ============================================================
   Section Base
   ============================================================ */
.section {
  padding: var(--section-py) 0;
  background: var(--color-base);
}

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


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

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

.section__title {
  display: inline-block;
  font-size: 2.35rem;
  font-weight: 700;
  color: var(--color-main);
  letter-spacing: 0.01em;
}

.section__title::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-accent);
  margin: 18px auto 0;
}

.section__lead {
  margin-top: 36px;
  font-size: 1rem;
  color: var(--color-text-sub);
  line-height: 2;
}

.section__subtitle {
  margin-top: 20px;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--color-sub);
}

/* ============================================================
   CTA Block
   ============================================================ */
.cta-block {
  background: var(--color-main);
  color: #FFFFFF;
  padding: 96px 0;
  text-align: center;
}

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

.cta-block__headline {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
  line-height: 1.4;
}

.cta-block__body {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.9;
  margin-bottom: 40px;
}

/* ============================================================
   Cards (3-column — home services section)
   ============================================================ */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background: var(--color-base);
  border: 1px solid var(--color-border);
  padding: 52px 36px 48px;
  display: flex;
  flex-direction: column;
  transition: box-shadow 200ms ease;
}

.card:hover {
  box-shadow: 0 4px 24px rgba(10, 37, 64, 0.07);
}

.card__eyebrow {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}

.card__title {
  font-size: 1.41rem;
  color: var(--color-main);
  margin-bottom: 20px;
  line-height: 1.4;
}

.card__body {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 1.95;
  flex: 1;
  margin-bottom: 28px;
}

.card__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.02em;
  transition: opacity 180ms ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card__link:hover {
  opacity: 0.75;
}

/* ============================================================
   About Section (top page)
   ============================================================ */
.about {
  max-width: 720px;
  margin: 0 auto;
}

.about__body {
  font-size: 1rem;
  color: var(--color-text-sub);
  line-height: 2;
  margin-bottom: 36px;
}

.about__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity 180ms ease;
}

.about__link:hover {
  opacity: 0.75;
}

/* ============================================================
   Service Layout (service detail pages)
   ============================================================ */
.service {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.service__body p {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 2;
  margin-bottom: 24px;
}

.service__body p:last-child {
  margin-bottom: 0;
}

.service__note {
  font-size: 0.875rem !important;
  color: var(--color-text-sub);
  padding-left: 16px;
  border-left: 3px solid var(--color-border);
}

.service__menu-title {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-sub);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

/* ============================================================
   Checklist (2-column within service menu)
   ============================================================ */
.checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-text);
  padding: 11px 8px 11px 0;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.7;
}

.checklist__item:nth-last-child(-n+2) {
  border-bottom: none;
}

.checklist__item::before {
  content: '';
  display: block;
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin-top: 2px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Ccircle cx='9' cy='9' r='9' fill='%23B8860B' opacity='0.13'/%3E%3Cpath d='M5 9.2l2.8 2.8 5.2-5.5' stroke='%23B8860B' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  flex-shrink: 0;
}

/* Full-width checklist variant (non-2col) */
.checklist--full .checklist__item {
  border-bottom: 1px solid var(--color-border);
}

.checklist--full .checklist__item:last-child {
  border-bottom: none;
}

/* ============================================================
   Features (3-column — service characteristic sections)
   ============================================================ */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature {
  padding: 44px 36px;
  border: 1px solid var(--color-border);
  transition: box-shadow 200ms ease;
}

.feature:hover {
  box-shadow: 0 4px 24px rgba(10, 37, 64, 0.07);
}

.feature__eyebrow {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.12em;
  margin-bottom: 14px;
}

.feature__title {
  font-size: 1.125rem;
  color: var(--color-main);
  margin-bottom: 14px;
}

.feature__body {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  line-height: 1.9;
}

/* ============================================================
   Works / Results
   ============================================================ */
.work-categories {
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.work-category__title {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-sub);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-accent);
  margin-bottom: 0;
}

.work-items {
  margin-top: 0;
}

.work-item {
  padding: 32px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.work-item__title {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-main);
  margin-bottom: 10px;
  line-height: 1.5;
}

.work-item__desc {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  line-height: 1.9;
}

.works-note {
  margin-top: 60px;
  font-size: 0.8125rem;
  color: var(--color-text-sub);
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.works-link {
  display: inline-block;
  margin-top: 40px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
  transition: opacity 180ms ease;
}

.works-link:hover {
  opacity: 0.75;
}

/* ============================================================
   Flow (5-step horizontal)
   ============================================================ */
.flow {
  display: flex;
  align-items: flex-start;
  position: relative;
  list-style: none;
}

.flow::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 9%;
  right: 9%;
  height: 1px;
  background: var(--color-border);
  z-index: 0;
}

.flow__step {
  flex: 1;
  text-align: center;
  padding: 0 12px;
  position: relative;
  z-index: 1;
}

.flow__badge {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-main);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  position: relative;
  z-index: 1;
}

.flow__step-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.flow__title {
  font-size: 0.9375rem;
  color: var(--color-main);
  margin-bottom: 10px;
}

.flow__body {
  font-size: 0.8125rem;
  color: var(--color-text-sub);
  line-height: 1.85;
}

/* ============================================================
   FAQ Accordion
   ============================================================ */
.faq {
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

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

.faq__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 24px 0;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-main);
  text-align: left;
  transition: color 200ms ease;
  line-height: 1.6;
}

.faq__question:hover {
  color: var(--color-sub);
}

.faq__icon {
  display: block;
  position: relative;
  width: 20px;
  height: 20px;
  min-width: 20px;
  flex-shrink: 0;
}

.faq__icon::before,
.faq__icon::after {
  content: '';
  position: absolute;
  background: var(--color-accent);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: transform 280ms ease, opacity 280ms ease;
  border-radius: 1px;
}

.faq__icon::before { width: 14px; height: 1.5px; }
.faq__icon::after  { width: 1.5px; height: 14px; }

.faq__item.is-open .faq__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq__answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height 320ms ease-out;
}

.faq__item.is-open .faq__answer {
  max-height: 600px;
}

.faq__answer p {
  padding-bottom: 24px;
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 2;
}

/* ============================================================
   Company
   ============================================================ */
.company {
  max-width: 720px;
  margin: 0 auto;
}

.company__table {
  width: 100%;
  border-collapse: collapse;
}

.company__th,
.company__td {
  padding: 22px 24px;
  font-size: 0.9375rem;
  vertical-align: top;
  text-align: left;
  line-height: 1.8;
  border-bottom: 1px solid var(--color-border);
}

.company__table tbody tr:first-child .company__th,
.company__table tbody tr:first-child .company__td {
  border-top: 1px solid var(--color-border);
}

.company__th {
  width: 160px;
  color: var(--color-sub);
  font-weight: 500;
  font-family: var(--font-sans);
  white-space: nowrap;
  padding-left: 0;
}

/* Message section */
.message {
  max-width: 720px;
  margin: 0 auto;
}

.message__body {
  font-size: 1rem;
  color: var(--color-text);
  line-height: 2.1;
  margin-bottom: 32px;
  white-space: pre-line;
}

.message__signature {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-main);
  font-weight: 600;
  text-align: right;
}

/* Access / Map */
.access {
  max-width: 800px;
  margin: 0 auto;
}

.access__address {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 1.9;
  margin-bottom: 28px;
}

.access__map {
  width: 100%;
  height: 400px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  display: block;
}

/* ============================================================
   Contact Form
   ============================================================ */
.form {
  max-width: 720px;
  margin: 0 auto;
}

.form__row {
  display: grid;
  gap: 24px;
  margin-bottom: 32px;
}

.form__row--2col {
  grid-template-columns: 1fr 1fr;
}

.form__group {
  margin-bottom: 28px;
}

.form__row .form__group {
  margin-bottom: 0;
}

.form__label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 10px;
}

.form__required {
  display: inline-block;
  background: var(--color-main);
  color: #FFFFFF;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 2px;
  margin-left: 8px;
  vertical-align: middle;
  letter-spacing: 0.04em;
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-base);
  transition: border-color 200ms ease, box-shadow 200ms ease;
  -webkit-appearance: none;
  appearance: none;
  line-height: 1.7;
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-main);
  box-shadow: 0 0 0 3px rgba(10, 37, 64, 0.07);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: #BBBBBB;
}

.form__textarea {
  resize: vertical;
  min-height: 160px;
}

.form__checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
}

.form__checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.form__checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-main);
  cursor: pointer;
  flex-shrink: 0;
}

.form__submit {
  text-align: center;
  margin-top: 16px;
}

/* ============================================================
   Privacy Policy
   ============================================================ */
.privacy-content {
  max-width: 800px;
  margin: 0 auto;
}

.privacy-section {
  margin-bottom: 56px;
}

.privacy-section:last-child {
  margin-bottom: 0;
}

.privacy-section__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-main);
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}

.privacy-section__body {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 2;
}

.privacy-section__body p {
  margin-bottom: 14px;
}

.privacy-section__body p:last-child {
  margin-bottom: 0;
}

/* ============================================================
   Footer (3-column)
   ============================================================ */
.footer {
  background: var(--color-main);
  color: rgba(255, 255, 255, 0.7);
}

.footer__upper {
  padding: 72px 0 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer__cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
}

.footer__logo-link {
  display: inline-block;
  background: #F0F2F5;
  border-radius: 6px;
  padding: 8px 16px;
  margin-bottom: 16px;
  line-height: 0;
  text-decoration: none;
}

.footer__logo-img {
  height: 32px;
  width: auto;
  display: block;
}

.footer__brand {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

.footer__info {
  font-size: 0.875rem;
  line-height: 1.9;
}

.footer__col-heading {
  font-size: 0.8125rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__link {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.65);
  transition: color 180ms ease;
  line-height: 1.5;
}

.footer__link:hover,
.footer__link:focus-visible {
  color: #FFFFFF;
  outline: none;
}

.footer__bottom {
  padding: 24px 0;
  text-align: center;
}

.footer__copy {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
}

/* ============================================================
   Responsive — Tablet (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .cards {
    grid-template-columns: 1fr 1fr;
  }

  .cards .card:last-child {
    grid-column: 1 / -1;
    max-width: 480px;
    margin: 0 auto;
  }

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

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

  .features .feature:last-child {
    grid-column: 1 / -1;
    max-width: 480px;
    margin: 0 auto;
  }

  .footer__cols {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .footer__cols > :first-child {
    grid-column: 1 / -1;
  }
}

/* ============================================================
   Responsive — Mobile (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --section-py: 80px;
    --header-h: 64px;
  }

  html {
    font-size: 16px;
  }

  /* Header */
  .header__logo-img {
    height: 32px;
  }

  .header__nav,
  .header__cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .header__inner {
    padding: 0 20px;
  }

  /* Hero */
  .hero__inner {
    padding: 60px 20px;
  }

  .hero__title {
    font-size: 2.25rem;
    margin-bottom: 28px;
  }

  .hero__lead {
    font-size: 0.9375rem;
    margin-bottom: 40px;
  }

  /* Page header */
  .page-header {
    padding: 48px 0 44px;
    min-height: 200px;
  }

  .page-header__inner {
    padding: 0 20px;
  }

  .page-header__title {
    font-size: 2.125rem;
    margin-bottom: 12px;
  }

  /* Section */
  .section__inner {
    padding: 0 20px;
  }

  .section__title {
    font-size: 1.75rem;
  }

  .section__header {
    margin-bottom: 52px;
  }

  /* Cards */
  .cards {
    grid-template-columns: 1fr;
  }

  .cards .card:last-child {
    grid-column: auto;
    max-width: none;
    margin: 0;
  }

  /* Service */
  .service {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  /* Checklist */
  .checklist {
    grid-template-columns: 1fr;
  }

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

  .checklist__item:last-child {
    border-bottom: none;
  }

  /* Features */
  .features {
    grid-template-columns: 1fr;
  }

  .features .feature:last-child {
    grid-column: auto;
    max-width: none;
    margin: 0;
  }

  /* Flow */
  .flow {
    flex-direction: column;
    gap: 0;
  }

  .flow::before {
    display: none;
  }

  .flow__step {
    text-align: left;
    padding: 0;
    display: grid;
    grid-template-columns: 52px 1fr;
    grid-template-rows: auto auto auto;
    column-gap: 20px;
    padding-bottom: 28px;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--color-border);
  }

  .flow__step:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .flow__badge {
    grid-column: 1;
    grid-row: 1 / 4;
    margin: 0;
    align-self: start;
    width: 44px;
    height: 44px;
  }

  .flow__step-label {
    grid-column: 2;
    grid-row: 1;
    text-align: left;
    margin-bottom: 4px;
  }

  .flow__title {
    grid-column: 2;
    grid-row: 2;
    text-align: left;
    margin-bottom: 6px;
  }

  .flow__body {
    grid-column: 2;
    grid-row: 3;
    text-align: left;
  }

  /* Company */
  .company__th {
    width: 100px;
    padding: 16px 12px 16px 0;
    font-size: 0.875rem;
  }

  .company__td {
    padding: 16px 0;
    font-size: 0.875rem;
  }

  /* Access map */
  .access__map {
    height: 280px;
  }

  /* Form */
  .form__row--2col {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .form__row .form__group {
    margin-bottom: 28px;
  }

  .form__checkboxes {
    flex-direction: column;
    gap: 14px;
  }

  /* CTA block */
  .cta-block {
    padding: 72px 0;
  }

  .cta-block__inner {
    padding: 0 20px;
  }

  .cta-block__headline {
    font-size: 1.625rem;
  }

  /* Works */
  .work-categories {
    gap: 60px;
  }

  /* Footer */
  .footer__upper {
    padding: 56px 0 44px;
  }

  .footer__inner {
    padding: 0 20px;
  }

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

  .footer__cols > :first-child {
    grid-column: auto;
  }

  /* h2 mobile */
  h2 { font-size: 1.65rem; }
  h3 { font-size: 1.18rem; }

  .btn--lg {
    padding: 16px 36px;
  }
}

/* ============================================================
   Responsive — Small Mobile (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {
  .hero__title {
    font-size: 1.875rem;
  }

  .page-header__title {
    font-size: 1.75rem;
  }

  .section__title {
    font-size: 1.5rem;
  }

  .cta-block__headline {
    font-size: 1.5rem;
  }

  .card {
    padding: 36px 24px 32px;
  }

  .feature {
    padding: 32px 24px;
  }
}

/* ============================================================
   Hero Bar (実績バー — top page, below hero)
   ============================================================ */
.hero-bar {
  background: var(--color-base);
  border-bottom: 1px solid var(--color-border);
  padding: 40px 0;
}

.hero-bar__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-bar__item {
  flex: 1;
  text-align: center;
  padding: 0 28px;
}

.hero-bar__category {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-sub);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.hero-bar__value {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-main);
  line-height: 1.4;
}

.hero-bar__sep {
  width: 1px;
  height: 44px;
  background: var(--color-border);
  flex-shrink: 0;
}

/* ============================================================
   Stat Highlights (数値ハイライトブロック)
   ============================================================ */
.stat-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--color-border);
  margin: 0 auto;
}

.stat-highlight {
  text-align: center;
  padding: 52px 24px;
  border-right: 1px solid var(--color-border);
}

.stat-highlight:last-child {
  border-right: none;
}

.stat-highlight__value {
  display: block;
  font-family: var(--font-serif);
  font-size: 3.5rem;    /* ~60px */
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.1;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.stat-highlight__label {
  display: block;
  font-size: 0.875rem;
  color: var(--color-sub);
  letter-spacing: 0.04em;
  line-height: 1.6;
}

/* Highlight Card variant */
.highlight-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 180px;
  padding: 40px 24px;
}

.highlight-main {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
}

.highlight-sub {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-sub);
  margin-top: 12px;
  text-align: center;
}

/* Single-stat variant (AI works section) */
.stat-highlights--single {
  grid-template-columns: 1fr;
  max-width: 320px;
}

/* ============================================================
   Industry Tag List (業種タグ)
   ============================================================ */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -4px 24px;
}

.tag {
  display: inline-block;
  background: #F0F2F5;
  color: var(--color-main);
  border-radius: 20px;
  padding: 8px 16px;
  margin: 4px;
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.4;
  white-space: nowrap;
}

/* ============================================================
   Works Category Number (大型番号 01/02/03)
   ============================================================ */
.works-cat-num {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 12px;
}

/* BPO service menu cards (works page) */
.bpo-menu {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.bpo-menu__item {
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 32px 24px;
  display: block;
  transition: box-shadow 0.2s ease;
}

.bpo-menu__item:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.bpo-menu__item h3 {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 12px;
  line-height: 1.5;
}

.bpo-menu__item p {
  font-size: 0.875rem;
  color: var(--color-sub);
  line-height: 1.7;
  margin: 0;
}

/* AI Works Category Cards */
.ai-works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.ai-work-card {
  background: #FFFFFF;
  border: 1px solid #E5E7EB;
  border-radius: 4px;
  padding: 32px;
  transition: box-shadow 0.2s ease;
}

.ai-work-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.ai-work-card__title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-main);
  margin-bottom: 12px;
  line-height: 1.4;
}

.ai-work-card__desc {
  font-size: 0.875rem;
  color: var(--color-sub);
  line-height: 1.7;
  margin-bottom: 20px;
}

.ai-work-card__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ai-work-card__list li {
  font-size: 0.875rem;
  color: var(--color-text-sub);
  line-height: 1.7;
  padding: 10px 0 10px 20px;
  position: relative;
  border-top: 1px solid var(--color-border);
}

.ai-work-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 1.5px;
  background: var(--color-accent);
}

/* ============================================================
   Area Card (works S02 + ai/支援領域 shared component)
   ============================================================ */
.area-card {
  background: #fff;
  border-radius: 12px;
  padding: 32px 28px;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease;
}

.area-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.area-card__title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-main);
  line-height: 1.4;
  margin-bottom: 16px;
  min-height: 64px;
}

.area-card__lead {
  font-size: 14px;
  color: var(--color-sub);
  line-height: 1.7;
  margin-bottom: 24px;
  min-height: 72px;
}

.area-card__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.area-card__list li {
  position: relative;
  padding: 12px 0 12px 20px;
  border-top: 1px solid #E5E8EB;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-main);
}

.area-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 22px;
  width: 12px;
  height: 2px;
  background: var(--color-accent);
}

/* Works section supplement text */
.works-supplement {
  margin-top: 40px;
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 1.9;
}

/* Responsive additions */
@media (max-width: 1024px) {
  .ai-works-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .area-card__title,
  .area-card__lead {
    min-height: unset;
  }
}

@media (max-width: 768px) {
  .area-card__title,
  .area-card__lead {
    min-height: unset;
  }
}

@media (max-width: 768px) {
  .hero-bar__inner {
    flex-direction: column;
    gap: 0;
    padding: 0 20px;
  }

  .hero-bar__item {
    width: 100%;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .hero-bar__item:last-child {
    border-bottom: none;
  }

  .hero-bar__sep {
    display: none;
  }

  .stat-highlights {
    grid-template-columns: 1fr;
  }

  .stat-highlight {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 36px 20px;
  }

  .stat-highlight:last-child {
    border-bottom: none;
  }

  .stat-highlight__value {
    font-size: 2.5rem;
  }

  .stat-highlights--single {
    max-width: none;
  }

  .bpo-menu {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .ai-works-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}