/* ============================================
   shikumitate website - base style
   tone: newh-inspired (minimal / serif-heading / generous whitespace)
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@400;500;600;700&family=Noto+Sans+JP:wght@300;400;500;700&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --color-bg: #f7f6f1;
  --color-bg-alt: #ffffff;
  --color-text: #1a1a1a;
  --color-text-sub: #555555;
  --color-text-mute: #8a8a8a;
  --color-line: #e3e1d9;
  --color-accent: #1a1a1a;

  /* accent colors (和色) */
  --color-moss: #2d5a3d;       /* 常磐色 / 深い松葉（仕組み・人・構造） */
  --color-moss-soft: #6f8870;
  --color-persimmon: #b85a30;  /* 朱柿（仕立て・AI・コア） */
  --color-persimmon-soft: #d49270;

  --font-serif: 'Shippori Mincho', 'Noto Serif JP', 'Hiragino Mincho ProN', 'YuMincho', serif;
  --font-sans: 'Inter', 'Noto Sans JP', 'Hiragino Sans', 'YuGothic', sans-serif;

  --max-width: 1100px;
  --content-width: 880px;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 32px;
  --space-lg: 64px;
  --space-xl: 120px;
  --space-2xl: 200px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
  letter-spacing: 0.04em;
  font-feature-settings: "palt";
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.3s var(--ease);
}

a:hover {
  opacity: 0.6;
}

ul, ol {
  list-style: none;
}

/* ============================================
   layout
   ============================================ */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

.container-narrow {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 40px;
}

section {
  padding: var(--space-xl) 0;
}

@media (max-width: 768px) {
  section {
    padding: var(--space-lg) 0;
  }
  .container, .container-narrow {
    padding: 0 24px;
  }
}

/* ============================================
   typography
   ============================================ */

h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.06em;
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-mute);
  display: block;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

.lead {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  line-height: 2;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.text {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-text-sub);
}

.divider {
  width: 100%;
  height: 1px;
  background-color: var(--color-line);
  margin: 0;
  border: none;
}

/* ============================================
   header
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 24px 40px;
  background-color: rgba(247, 246, 241, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.site-logo small {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--color-text-mute);
  display: block;
  margin-top: 2px;
}

.site-nav ul {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.site-nav a {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--color-text-sub);
}

.site-nav a.contact-link {
  border: 1px solid var(--color-text);
  padding: 10px 20px;
  color: var(--color-text);
  transition: all 0.3s var(--ease);
}

.site-nav a.contact-link:hover {
  background-color: var(--color-text);
  color: var(--color-bg);
  opacity: 1;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-text);
  margin: 6px 0;
  transition: all 0.3s var(--ease);
}

@media (max-width: 768px) {
  .site-header {
    padding: 16px 24px;
  }
  .site-nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-bg);
    padding: 24px;
    border-top: 1px solid var(--color-line);
  }
  .site-nav.is-open ul {
    display: flex;
  }
  .site-nav li {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-line);
  }
  .site-nav a.contact-link {
    border: none;
    padding: 0;
  }
  .nav-toggle {
    display: block;
  }
  .nav-toggle.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle.is-active span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ============================================
   hero (top page)
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
}

.hero-inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

.hero-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--color-text-mute);
  margin-bottom: var(--space-md);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-md);
}

.hero-title .accent {
  display: block;
}

.hero-sub {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 2;
  color: var(--color-text-sub);
  max-width: 640px;
  margin-top: var(--space-md);
}

.hero-meta {
  position: absolute;
  bottom: 40px;
  left: 40px;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-text-mute);
}

.hero-meta::before {
  content: '';
  display: inline-block;
  width: 40px;
  height: 1px;
  background: var(--color-text-mute);
  vertical-align: middle;
  margin-right: 16px;
}

@media (max-width: 768px) {
  .hero {
    min-height: 90vh;
    padding: 100px 0 60px;
  }
  .hero-meta {
    left: 24px;
    bottom: 24px;
  }
}

/* ============================================
   page header (lower pages)
   ============================================ */

.page-header {
  padding: 200px 0 80px;
  border-bottom: 1px solid var(--color-line);
}

.page-header .eyebrow {
  margin-bottom: var(--space-sm);
}

.page-header h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

.page-header .lead {
  max-width: 720px;
}

@media (max-width: 768px) {
  .page-header {
    padding: 120px 0 48px;
  }
}

/* ============================================
   service / list cards
   ============================================ */

.service-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.service-item {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-line);
  display: grid;
  grid-template-columns: 80px 1fr 1.5fr;
  gap: var(--space-lg);
  align-items: start;
}

.service-item:last-child {
  border-bottom: none;
}

.service-num {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-text-mute);
  padding-top: 8px;
}

.service-title {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2vw, 1.65rem);
  font-weight: 500;
  line-height: 1.5;
}

.service-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.service-desc {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-text-sub);
}

.service-block-title {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  display: block;
}

.service-block ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.service-block li {
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--color-text-sub);
  padding-left: 16px;
  position: relative;
}

.service-block li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 1px;
  background: var(--color-text-mute);
}

@media (max-width: 768px) {
  .service-item {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--space-md) 0;
  }
}

/* ============================================
   top page sections
   ============================================ */

.section-intro {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-lg);
  padding: 120px 40px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-intro .eyebrow {
  margin-bottom: 0;
}

.section-intro p {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  line-height: 2.2;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .section-intro {
    grid-template-columns: 1fr;
    padding: var(--space-lg) 24px;
    gap: var(--space-md);
  }
}

.top-services {
  background: var(--color-bg-alt);
  padding: var(--space-xl) 0;
}

.top-service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.top-service-card {
  padding: var(--space-lg) var(--space-md);
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg-alt);
  transition: background 0.3s var(--ease);
}

.top-service-card:hover {
  background: var(--color-bg);
}

.top-service-card .num {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-text-mute);
  display: block;
  margin-bottom: var(--space-sm);
}

.top-service-card h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
}

.top-service-card p {
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--color-text-sub);
}

@media (max-width: 768px) {
  .top-service-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   philosophy section (top)
   ============================================ */

.top-philosophy {
  padding: var(--space-xl) 0;
  background: var(--color-bg);
}

.top-philosophy .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.top-philosophy h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.top-philosophy .text {
  margin-bottom: var(--space-md);
}

@media (max-width: 768px) {
  .top-philosophy .container {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   profile section (top)
   ============================================ */

.top-profile {
  padding: var(--space-xl) 0;
  background: var(--color-bg-alt);
}

.profile-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.profile-photo {
  aspect-ratio: 3 / 4;
  background: var(--color-line);
  border-radius: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--color-text-mute);
  letter-spacing: 0.2em;
}

.profile-name {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  margin-bottom: 4px;
}

.profile-name-en {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-text-mute);
  margin-bottom: var(--space-sm);
}

.profile-title {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  margin-bottom: var(--space-sm);
}

.profile-bio {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-text-sub);
  margin-bottom: var(--space-md);
}

@media (max-width: 768px) {
  .profile-card {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .profile-photo {
    max-width: 200px;
  }
}

/* ============================================
   buttons / cta
   ============================================ */

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-text);
  padding: 14px 0;
  border-bottom: 1px solid var(--color-text);
  transition: all 0.3s var(--ease);
}

.btn-link:hover {
  gap: 20px;
  opacity: 1;
}

.btn-link .arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease);
}

.btn-link:hover .arrow {
  transform: translateX(4px);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-bg);
  background: var(--color-text);
  padding: 18px 40px;
  border: 1px solid var(--color-text);
  cursor: pointer;
  transition: all 0.3s var(--ease);
}

.btn-primary:hover {
  background: transparent;
  color: var(--color-text);
  opacity: 1;
}

/* ============================================
   cta section
   ============================================ */

.cta-section {
  padding: var(--space-xl) 0;
  background: var(--color-text);
  color: var(--color-bg);
  text-align: center;
}

.cta-section h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  color: var(--color-bg);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.cta-section p {
  color: rgba(247, 246, 241, 0.7);
  margin-bottom: var(--space-md);
  font-size: 0.95rem;
}

.cta-section .btn-link {
  color: var(--color-bg);
  border-bottom-color: var(--color-bg);
}

/* ============================================
   philosophy page specific
   ============================================ */

.phil-block {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-line);
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-lg);
}

.phil-block:last-child {
  border-bottom: none;
}

.phil-block--full {
  display: block;
  grid-template-columns: none;
}

.phil-block--full > h2 {
  margin-bottom: var(--space-md);
}

.phil-block--full > .phil-block-body {
  display: block;
}

.phil-block h2 {
  font-size: clamp(1.3rem, 2vw, 1.65rem);
  line-height: 1.7;
}

.phil-block .text {
  font-size: 0.95rem;
}

.phil-block .text + .text {
  margin-top: var(--space-md);
}

.phil-block h3 {
  font-size: 1.1rem;
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
  font-weight: 500;
}

.phil-block strong {
  color: var(--color-text);
  font-weight: 500;
}

.phil-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 2;
  padding: var(--space-md) 0 var(--space-md) var(--space-md);
  border-left: 1px solid var(--color-text);
  margin: var(--space-md) 0;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .phil-block {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

/* ============================================
   profile page specific
   ============================================ */

.profile-hero {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-line);
  align-items: start;
}

.profile-hero .profile-photo {
  max-width: 360px;
}

.profile-hero .profile-name {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.profile-block {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-line);
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-lg);
}

.profile-block:last-of-type {
  border-bottom: none;
}

.profile-block--full {
  display: block;
  grid-template-columns: none;
}

.profile-block--full > h2 {
  text-align: center;
  margin-bottom: var(--space-md);
  font-size: clamp(1.4rem, 2.2vw, 1.85rem);
}

.profile-block--full > .section-eyebrow-center {
  text-align: center;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--color-text-mute);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  display: block;
}

.profile-block h2 {
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
}

.profile-block h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 500;
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
}

.profile-block h3:first-child {
  margin-top: 0;
}

.profile-block p {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-text-sub);
  margin-bottom: var(--space-sm);
}

.profile-block strong {
  color: var(--color-text);
  font-weight: 500;
}

.career-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

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

.career-table th, .career-table td {
  text-align: left;
  padding: var(--space-md) var(--space-sm);
  vertical-align: top;
  font-weight: 400;
  line-height: 1.9;
}

.career-table th {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--color-text-mute);
  width: 120px;
  white-space: nowrap;
}

.career-table .org {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  display: block;
  margin-bottom: 4px;
}

.career-table td {
  color: var(--color-text-sub);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--space-sm);
}

.tag-list li {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  padding: 6px 14px;
  border: 1px solid var(--color-line);
  color: var(--color-text-sub);
}

.case-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.case-table th, .case-table td {
  padding: 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-line);
  font-weight: 400;
  line-height: 1.8;
}

.case-table th {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-text-mute);
  font-weight: 500;
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .profile-hero, .profile-block {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .career-table th {
    width: 100px;
  }
  .case-table {
    font-size: 0.8rem;
  }
}

/* ============================================
   contact form
   ============================================ */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 640px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-text-sub);
  font-weight: 500;
}

.form-group label .required {
  color: var(--color-text);
  margin-left: 6px;
}

.form-group input,
.form-group textarea {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 14px 0;
  border: none;
  border-bottom: 1px solid var(--color-line);
  background: transparent;
  color: var(--color-text);
  outline: none;
  transition: border-color 0.3s var(--ease);
  resize: none;
}

.form-group textarea {
  min-height: 160px;
  border: 1px solid var(--color-line);
  padding: 14px;
  font-family: var(--font-sans);
  line-height: 1.8;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-text);
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-text-mute);
  line-height: 1.8;
  margin-top: var(--space-md);
}

/* ============================================
   footer
   ============================================ */

.site-footer {
  padding: var(--space-lg) 0 var(--space-md);
  background: var(--color-bg);
  border-top: 1px solid var(--color-line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
}

.footer-brand-en {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-text-mute);
  margin-bottom: var(--space-sm);
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  line-height: 1.9;
  max-width: 400px;
}

.footer-block h4 {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  font-weight: 500;
  color: var(--color-text-mute);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

.footer-block ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-block a, .footer-block li {
  font-size: 0.85rem;
  color: var(--color-text-sub);
}

.footer-bottom {
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-line);
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-text-mute);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}

/* ============================================
   decorative section numbers / eyebrows
   ============================================ */

.section-deco {
  position: relative;
  padding-top: var(--space-lg);
}

.deco-num {
  font-family: var(--font-serif);
  font-size: clamp(8rem, 18vw, 16rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-line);
  position: absolute;
  top: -0.1em;
  right: 40px;
  z-index: 0;
  pointer-events: none;
  user-select: none;
}

.deco-num.is-accent {
  -webkit-text-stroke: 1px var(--color-persimmon-soft);
}

.deco-eyebrow {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.deco-eyebrow .num-mark {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-moss);
  letter-spacing: 0.04em;
  font-weight: 500;
}

.deco-eyebrow .num-total {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  color: var(--color-text-mute);
  letter-spacing: 0.2em;
}

.deco-eyebrow .label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-text-sub);
  margin-left: auto;
  position: relative;
  padding-left: 32px;
}

.deco-eyebrow .label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 24px;
  height: 1px;
  background: var(--color-text-sub);
}

@media (max-width: 768px) {
  .deco-num { right: 20px; }
  .deco-eyebrow { flex-wrap: wrap; }
  .deco-eyebrow .label { margin-left: 0; padding-left: 0; }
  .deco-eyebrow .label::before { display: none; }
}

/* watermark text in section background */
.watermark-bg {
  position: absolute;
  bottom: -40px;
  left: 0;
  right: 0;
  font-family: var(--font-serif);
  font-size: clamp(6rem, 18vw, 18rem);
  letter-spacing: 0.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(26, 26, 26, 0.05);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  overflow: hidden;
  z-index: 0;
}

/* ============================================
   hero textile pattern
   ============================================ */

.hero {
  overflow: hidden;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.55;
}

.hero-pattern svg {
  width: 100%;
  height: 100%;
  display: block;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-thread-tag {
  position: absolute;
  top: 50%;
  right: 40px;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.4em;
  color: var(--color-moss);
  z-index: 1;
}

.hero-thread-tag::before {
  content: '';
  display: block;
  width: 1px;
  height: 60px;
  background: var(--color-moss);
  margin: 0 auto 24px;
}

@media (max-width: 768px) {
  .hero-thread-tag { display: none; }
}

/* accent on hero title (柿色) */
.hero-title .dot {
  display: inline-block;
  width: 0.18em;
  height: 0.18em;
  background: var(--color-persimmon);
  border-radius: 50%;
  vertical-align: super;
  margin-left: 0.05em;
  margin-bottom: 0.4em;
}

/* ============================================
   text accent utilities
   ============================================ */

.t-moss {
  color: var(--color-moss);
  font-weight: 700;
}
.t-persimmon {
  color: var(--color-persimmon);
  font-weight: 700;
}
.t-mark {
  background: linear-gradient(transparent 55%, rgba(184, 90, 48, 0.30) 55%, rgba(184, 90, 48, 0.30) 92%, transparent 92%);
  padding: 0 0.08em;
  font-weight: 500;
}
.t-mark-moss {
  background: linear-gradient(transparent 55%, rgba(45, 90, 61, 0.28) 55%, rgba(45, 90, 61, 0.28) 92%, transparent 92%);
  padding: 0 0.08em;
  font-weight: 500;
}
.t-mincho {
  font-family: var(--font-serif);
}
.t-divider {
  display: inline-block;
  margin: 0 0.4em;
  color: var(--color-text-mute);
}

/* ============================================
   accent application
   ============================================ */

/* eyebrow に縦線アクセント */
.eyebrow {
  position: relative;
  padding-left: 28px;
}

.eyebrow::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 1px;
  background: var(--color-moss);
}

.eyebrow.no-mark {
  padding-left: 0;
}

.eyebrow.no-mark::before { display: none; }

/* btn-link を緑アクセントに */
.btn-link {
  border-bottom-color: var(--color-moss);
  color: var(--color-text);
}

.btn-link .arrow {
  color: var(--color-moss);
}

/* contact-link の境界をアクセント */
.site-nav a.contact-link {
  border-color: var(--color-moss);
  color: var(--color-moss);
}

.site-nav a.contact-link:hover {
  background-color: var(--color-moss);
  color: var(--color-bg);
  border-color: var(--color-moss);
}

/* phil-quote の border に柿色 */
.phil-quote {
  border-left-color: var(--color-persimmon);
}

/* service-num に緑アクセント */
.service-num {
  color: var(--color-moss);
  font-weight: 600;
}

/* top-service-card hover */
.top-service-card:hover .num {
  color: var(--color-persimmon);
}

.top-service-card .num {
  transition: color 0.3s var(--ease);
}

/* required mark */
.form-group label .required {
  color: var(--color-persimmon);
}

/* ============================================
   numbers highlight (実績)
   ============================================ */

.numbers-section {
  padding: var(--space-xl) 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: var(--space-lg);
}

.number-card {
  padding: var(--space-md) var(--space-sm);
  border-left: 1px solid var(--color-line);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.number-card:first-child {
  border-left: none;
}

.number-card .figure {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  font-weight: 500;
  line-height: 1;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.number-card .figure .unit {
  font-size: 0.5em;
  color: var(--color-moss);
  margin-left: 4px;
  font-weight: 400;
}

.number-card .label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-text-mute);
  text-transform: uppercase;
}

.number-card .desc {
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--color-text-sub);
}

@media (max-width: 768px) {
  .numbers-grid {
    grid-template-columns: 1fr 1fr;
  }
  .number-card {
    padding: var(--space-md) 16px;
    border-bottom: 1px solid var(--color-line);
  }
  .number-card:nth-child(odd) {
    border-left: none;
  }
}

/* ============================================
   3 axes diagram
   ============================================ */

.axes-diagram {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.axes-svg-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-md) 0;
  width: 100%;
}

.axes-svg-wrap svg {
  max-width: 480px;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  display: block;
}

.axes-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.axes-item {
  padding: var(--space-md);
  border-top: 1px solid var(--color-line);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.axes-item .axis-num {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-moss);
  font-weight: 500;
}

.axes-item.persimmon .axis-num { color: var(--color-persimmon); }

.axes-item h4 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.7;
}

.axes-item p {
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--color-text-sub);
}

.axes-core {
  text-align: center;
  padding: var(--space-md) var(--space-lg);
  margin-top: var(--space-md);
  border-top: 1px solid var(--color-persimmon-soft);
  border-bottom: 1px solid var(--color-persimmon-soft);
  background: rgba(201, 123, 74, 0.03);
}

.axes-core .core-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--color-persimmon);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  display: block;
}

.axes-core .core-text {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 2;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .axes-list {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

/* ============================================
   career parallel diagram
   ============================================ */

.career-parallel {
  margin-top: var(--space-lg);
  border-top: 1px solid var(--color-line);
  padding-top: var(--space-md);
}

.career-parallel-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.career-col {
  padding: var(--space-md) var(--space-sm);
  border-left: 1px solid var(--color-line);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.career-col:first-child {
  border-left: none;
}

.career-col .era {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-moss);
  text-transform: uppercase;
  font-weight: 500;
}

.career-col h4 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.6;
  margin-bottom: 8px;
}

.career-step {
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--color-text-sub);
  padding: 8px 0;
  border-top: 1px dotted var(--color-line);
}

.career-step:first-of-type {
  border-top: none;
}

.career-step .step-tag {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--color-text-mute);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.career-summary-bar {
  margin-top: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: rgba(107, 122, 85, 0.05);
  border-top: 1px solid var(--color-moss-soft);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.career-summary-bar .label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--color-moss);
  text-transform: uppercase;
  white-space: nowrap;
  border-right: 1px solid var(--color-moss-soft);
  padding-right: var(--space-md);
}

.career-summary-bar .text {
  font-family: var(--font-serif);
  font-size: clamp(0.95rem, 1.4vw, 1.1rem);
  line-height: 1.9;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .career-parallel-grid {
    grid-template-columns: 1fr;
  }
  .career-col {
    border-left: none;
    border-top: 1px solid var(--color-line);
    padding: var(--space-md) 0;
  }
  .career-col:first-child {
    border-top: none;
  }
  .career-summary-bar {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-md);
  }
  .career-summary-bar .label {
    border-right: none;
    border-bottom: 1px solid var(--color-moss-soft);
    padding: 0 0 8px;
  }
}

/* ============================================
   reveal animation
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}

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