/* ==========================================================================
   共創キャピタルパートナーズ - Common Stylesheet
   White base + Navy + Gray
   ========================================================================== */

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

:root {
  --color-white: #ffffff;
  --color-bg-light: #f6f8fb;
  --color-bg-gray: #eef1f5;
  --color-navy: #14305f;
  --color-navy-dark: #0d2347;
  --color-navy-light: #2a4a78;
  --color-text: #1f2a3d;
  --color-text-sub: #5a6573;
  --color-gray: #8b95a3;
  --color-border: #e2e6ec;

  --font-serif: "Noto Serif JP", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  --font-sans: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;

  --max-width: 1200px;
  --header-height: 80px;

  --shadow-sm: 0 2px 8px rgba(20, 48, 95, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 48, 95, 0.08);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "palt";
}

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

a:hover {
  color: var(--color-navy-light);
}

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

ul, ol {
  list-style: none;
}

/* Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

main {
  min-height: 60vh;
}

section {
  padding: 100px 0;
}

@media (max-width: 768px) {
  section {
    padding: 64px 0;
  }
}

@media (max-width: 480px) {
  section {
    padding: 52px 0;
  }
}

.container,
.container-narrow {
  /* Slightly tighter padding on phones */
}

@media (max-width: 480px) {
  .container,
  .container-narrow {
    padding: 0 18px;
  }
}

/* Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
  }
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.0625rem;
  color: var(--color-navy);
  letter-spacing: 0.12em;
  transition: opacity var(--transition);
}

.site-logo:hover {
  opacity: 0.72;
  color: var(--color-navy);
}

@media (max-width: 640px) {
  .site-logo {
    font-size: 0.9375rem;
    gap: 10px;
    letter-spacing: 0.08em;
  }
}

@media (max-width: 380px) {
  .site-logo span:not(.logo-mark) {
    display: none;
  }
}

.site-logo:hover {
  color: var(--color-navy);
}

.logo-mark {
  width: 32px;
  height: 32px;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
}

@media (max-width: 640px) {
  .logo-mark {
    width: 28px;
    height: 28px;
  }
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 500;
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-navy);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-navy);
}

.site-nav a:hover::after,
.site-nav a.active::after {
  transform: scaleX(1);
}

.nav-contact {
  background: var(--color-navy);
  color: var(--color-white) !important;
  padding: 10px 22px !important;
  font-size: 0.875rem !important;
  transition: background var(--transition);
}

.nav-contact::after {
  display: none !important;
}

.nav-contact:hover {
  background: var(--color-navy-light);
}

.nav-toggle {
  display: none;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
}

.nav-toggle span {
  position: absolute;
  left: 4px;
  right: 4px;
  height: 2px;
  background: var(--color-navy);
  transition: all var(--transition);
}

.nav-toggle span:nth-child(1) { top: 9px; }
.nav-toggle span:nth-child(2) { top: 15px; }
.nav-toggle span:nth-child(3) { top: 21px; }

.nav-toggle.active span:nth-child(1) {
  top: 15px;
  transform: rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  top: 15px;
  transform: rotate(-45deg);
}

@media (max-width: 1100px) {
  .nav-toggle {
    display: block;
  }
  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    gap: 0;
    padding: 24px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-150%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-md);
  }
  .site-nav.open {
    transform: translateY(0);
  }
  .site-nav a {
    width: 100%;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-contact {
    margin-top: 12px;
    text-align: center;
  }
}

/* Hero (Full-width / centered) — mmc2020 style
   ========================================================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  max-height: 900px;
  margin-top: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-navy-dark);
}

@media (max-width: 768px) {
  .hero {
    height: 88vh;
    min-height: 520px;
    max-height: 720px;
  }
}

@media (max-width: 480px) {
  .hero {
    height: auto;
    min-height: 540px;
    padding: 80px 0 60px;
  }
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-slideshow {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  animation: heroSlideFade 18s infinite;
  will-change: opacity;
  transform: scale(1.05);
}

.hero-slide:nth-child(1) {
  animation: heroSlideFade 18s infinite, heroSlideZoom 18s infinite;
  animation-delay: 0s, 0s;
}
.hero-slide:nth-child(2) {
  animation: heroSlideFade 18s infinite, heroSlideZoom 18s infinite;
  animation-delay: -12s, -12s;
}
.hero-slide:nth-child(3) {
  animation: heroSlideFade 18s infinite, heroSlideZoom 18s infinite;
  animation-delay: -6s, -6s;
}

@keyframes heroSlideFade {
  0%   { opacity: 1; }
  27%  { opacity: 1; }
  33%  { opacity: 0; }
  94%  { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes heroSlideZoom {
  0%   { transform: scale(1.05); }
  33%  { transform: scale(1.12); }
  100% { transform: scale(1.05); }
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(13, 35, 71, 0.55) 0%, rgba(13, 35, 71, 0.78) 100%);
}

.hero-bg-overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
  color: var(--color-white);
}

.hero-eyebrow {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.4em;
  margin-bottom: 32px;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.875rem, 4.6vw, 3.5rem);
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.55;
  letter-spacing: 0.08em;
  margin-bottom: 40px;
}

.hero-title em {
  font-style: normal;
  color: #a8c4ec;
  position: relative;
  padding: 0 0.1em;
}

.br-mobile {
  display: none;
}

@media (max-width: 640px) {
  .br-mobile {
    display: inline;
  }
}

.hero-lead {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.88);
  max-width: 720px;
  margin: 0 auto 56px;
  line-height: 2.1;
  letter-spacing: 0.04em;
}

.hero-actions {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero .btn-primary {
  background: var(--color-white);
  color: var(--color-navy);
  border-color: var(--color-white);
}

.hero .btn-primary:hover {
  background: var(--color-bg-light);
  color: var(--color-navy);
}

.hero .btn-outline {
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--color-white);
}

.hero .btn-outline:hover {
  background: var(--color-white);
  color: var(--color-navy);
  border-color: var(--color-white);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-serif);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  padding-bottom: 70px;
}

.hero-scroll::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 1px;
  height: 60px;
  background: rgba(255, 255, 255, 0.4);
  animation: scrollLine 2.2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  50.1%{ transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@media (max-width: 640px) {
  .hero-eyebrow {
    letter-spacing: 0.3em;
    margin-bottom: 24px;
  }
  .hero-title {
    line-height: 1.65;
    letter-spacing: 0.06em;
    margin-bottom: 28px;
  }
  .hero-lead {
    font-size: 0.9375rem;
    line-height: 1.95;
    margin-bottom: 36px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    padding: 0 16px;
  }
  .hero-scroll {
    display: none;
  }
}

/* Page Hero (sub pages)
   ========================================================================== */
.page-hero {
  margin-top: var(--header-height);
  padding: 100px 0 80px;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.page-hero-inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.page-hero-en {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  letter-spacing: 0.3em;
  opacity: 0.7;
  margin-bottom: 16px;
}

.page-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.08em;
}

/* Breadcrumb
   ========================================================================== */
.breadcrumb {
  background: var(--color-bg-light);
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.8125rem;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  color: var(--color-text-sub);
}

.breadcrumb li + li::before {
  content: "›";
  margin-right: 8px;
  color: var(--color-gray);
}

.breadcrumb a {
  color: var(--color-text-sub);
}

/* Section heading
   ========================================================================== */
.section-heading {
  position: relative;
  margin-bottom: 64px;
  padding-top: 24px;
  padding-bottom: 24px;
  min-height: 160px;
  display: flex;
  align-items: center;
  text-align: left;
  overflow: hidden;
}

.section-heading-en {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 0;
  right: 0;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(4.5rem, 13vw, 9rem);
  line-height: 1;
  color: rgba(190, 162, 92, 0.22);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.section-heading-jp {
  position: relative;
  z-index: 2;
  display: inline-block;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.12em;
  padding-left: 64px;
  margin-top: 0;
}

.section-heading-jp::after {
  display: none;
}

/* Center-aligned variant (kept for backward-compat / hero CTA section) */
.section-heading.text-center {
  text-align: center;
}

.section-heading.text-center .section-heading-en {
  text-align: center;
}

.section-heading.text-center .section-heading-jp {
  padding-left: 0;
}

@media (max-width: 768px) {
  .section-heading {
    min-height: 150px;
    margin-bottom: 44px;
    padding-top: 0;
    padding-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .section-heading-en {
    font-size: 7rem;
    letter-spacing: 0.04em;
    text-align: center;
    top: 50%;
    transform: translateY(-50%);
    z-index: 0;
  }
  .section-heading-jp {
    padding-left: 0;
    margin-top: 0;
    text-align: center;
    position: relative;
    z-index: 2;
  }
}

@media (max-width: 480px) {
  .section-heading {
    min-height: 130px;
  }
  .section-heading-en {
    font-size: 5.75rem;
    letter-spacing: 0.02em;
  }
  .section-heading-jp {
    font-size: 1.375rem;
  }
}

/* Pagination
   ========================================================================== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 64px;
  flex-wrap: wrap;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 14px;
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  color: var(--color-navy);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.pagination a:hover {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}

.pagination .pagination-current {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
  cursor: default;
}

.pagination .pagination-disabled {
  color: var(--color-gray);
  background: var(--color-bg-light);
  cursor: not-allowed;
  pointer-events: none;
}

.pagination-prev,
.pagination-next {
  font-family: var(--font-serif);
  letter-spacing: 0.15em;
  padding: 0 22px !important;
  gap: 6px;
}

.pagination-prev::before {
  content: "←";
  margin-right: 4px;
}

.pagination-next::after {
  content: "→";
  margin-left: 4px;
}

@media (max-width: 480px) {
  .pagination {
    margin-top: 48px;
    gap: 6px;
  }
  .pagination a,
  .pagination span {
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    font-size: 0.875rem;
  }
  .pagination-prev,
  .pagination-next {
    padding: 0 14px !important;
    font-size: 0.8125rem;
  }
}

/* News / Notice list
   ========================================================================== */
.section-news {
  background: var(--color-white);
}

.news-list {
  max-width: 880px;
  margin: 0 auto;
  border-top: 1px solid var(--color-border);
}

.news-item {
  display: grid;
  grid-template-columns: 140px 120px 1fr;
  gap: 24px;
  padding: 24px 8px;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  transition: background var(--transition);
}

.news-item:hover {
  background: var(--color-bg-light);
  color: var(--color-text);
}

.news-date {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  color: var(--color-navy);
  letter-spacing: 0.08em;
}

.news-category {
  display: inline-block;
  text-align: center;
  background: var(--color-bg-light);
  color: var(--color-navy);
  border: 1px solid var(--color-border);
  font-size: 0.75rem;
  padding: 6px 12px;
  letter-spacing: 0.1em;
  font-family: var(--font-serif);
}

.news-title {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text);
}

@media (max-width: 640px) {
  .news-item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 20px 8px;
  }
  .news-category {
    justify-self: start;
  }
}

/* Philosophy block (mmc2020風の引用調セクション)
   ========================================================================== */
.section-philosophy {
  background:
    linear-gradient(rgba(13, 35, 71, 0.88), rgba(13, 35, 71, 0.92)),
    url('../images/hero-02.jpg') center/cover no-repeat;
  color: var(--color-white);
  padding: 140px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

@media (max-width: 768px) {
  .section-philosophy {
    padding: 88px 0;
  }
}

@media (max-width: 480px) {
  .section-philosophy {
    padding: 72px 0;
  }
}

.section-philosophy::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}

.section-philosophy .container {
  position: relative;
  z-index: 1;
}

.philosophy-eyebrow {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  letter-spacing: 0.4em;
  margin-bottom: 32px;
  opacity: 0.7;
}

.philosophy-text {
  font-family: var(--font-serif);
  font-size: clamp(1.375rem, 2.6vw, 2rem);
  font-weight: 500;
  line-height: 2.2;
  letter-spacing: 0.1em;
  max-width: 900px;
  margin: 0 auto;
}

.philosophy-text em {
  font-style: normal;
  color: #a8c4ec;
}

/* Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  min-width: 200px;
}

.btn-primary {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-navy-light);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}

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

.btn-arrow::after {
  content: "→";
  transition: transform var(--transition);
}

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

/* Cards grid - services / business areas
   ========================================================================== */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

@media (max-width: 980px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: var(--color-navy);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.service-card-visual {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  position: relative;
  overflow: hidden;
}

.service-card-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 24px 24px;
}

.service-card-visual-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  letter-spacing: 0.1em;
  z-index: 1;
}

.service-card-body {
  padding: 32px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-card-num {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-navy);
  margin-bottom: 16px;
}

.service-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.service-card-text {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 1.9;
  flex: 1;
}

.service-card-more {
  margin-top: 20px;
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  color: var(--color-navy);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: gap var(--transition);
}

.service-card-more::after {
  content: "→";
}

.service-card:hover .service-card-more {
  gap: 14px;
}

/* About section (TOP)
   ========================================================================== */
.section-about {
  background: var(--color-bg-light);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
}

@media (max-width: 880px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.about-image {
  aspect-ratio: 4 / 5;
  background-color: var(--color-navy-dark);
  background-image: url('../images/about.jpg');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.about-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(13, 35, 71, 0.15) 0%, rgba(13, 35, 71, 0.55) 100%);
}

.about-image-label {
  position: absolute;
  left: 32px;
  bottom: 32px;
  color: var(--color-white);
  z-index: 2;
  font-family: var(--font-serif);
  letter-spacing: 0.2em;
  font-size: 0.875rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.about-text h2 {
  margin-bottom: 32px;
  text-align: left;
}

.about-text h2 .section-heading-jp::after {
  left: 0;
  transform: none;
}

.about-text p {
  color: var(--color-text-sub);
  margin-bottom: 20px;
  line-height: 2;
}

.about-text .btn {
  margin-top: 24px;
}

/* Voice / Testimonials
   ========================================================================== */
.section-voice {
  background: var(--color-white);
}

.voice-card {
  background: var(--color-bg-light);
  padding: 40px;
  position: relative;
}

.voice-card-quote {
  font-family: var(--font-serif);
  font-size: 4rem;
  color: var(--color-navy);
  opacity: 0.15;
  line-height: 1;
  position: absolute;
  top: 24px;
  left: 24px;
}

.voice-card-title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 16px;
  padding-top: 32px;
}

.voice-card-text {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  margin-bottom: 24px;
  line-height: 1.9;
}

.voice-card-author {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  font-size: 0.875rem;
  color: var(--color-text-sub);
}

.voice-card-author strong {
  display: block;
  color: var(--color-text);
  margin-bottom: 4px;
}

/* Column list
   ========================================================================== */
.column-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

@media (max-width: 880px) {
  .column-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .column-list {
    grid-template-columns: 1fr;
  }
}

.column-card {
  display: block;
  color: inherit;
  transition: opacity var(--transition);
}

.column-card:hover {
  color: inherit;
  opacity: 0.85;
}

.column-card-image {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--color-bg-gray) 0%, var(--color-bg-light) 100%);
  position: relative;
  overflow: hidden;
  margin-bottom: 20px;
}

.column-card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 60%, rgba(20, 48, 95, 0.1) 100%);
}

.column-card-image-label {
  position: absolute;
  left: 16px;
  bottom: 16px;
  color: var(--color-navy);
  font-family: var(--font-serif);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  z-index: 1;
}

.column-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8125rem;
  color: var(--color-text-sub);
  margin-bottom: 12px;
}

.column-card-category {
  background: var(--color-navy);
  color: var(--color-white);
  padding: 4px 12px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
}

.column-card-title {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.6;
  transition: color var(--transition);
}

.column-card:hover .column-card-title {
  color: var(--color-navy);
}

/* CTA section
   ========================================================================== */
.section-cta {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  color: var(--color-white);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.section-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.section-cta .container {
  position: relative;
  z-index: 1;
}

.section-cta h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 24px;
}

.section-cta p {
  font-size: 1rem;
  opacity: 0.85;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-cta .btn-primary {
  background: var(--color-white);
  color: var(--color-navy);
}

.section-cta .btn-primary:hover {
  background: var(--color-bg-light);
  color: var(--color-navy);
}

.section-cta .btn-outline {
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--color-white);
}

.section-cta .btn-outline:hover {
  background: var(--color-white);
  color: var(--color-navy);
  border-color: var(--color-white);
}

/* Footer
   ========================================================================== */
.site-footer {
  background: var(--color-navy-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 64px;
}

@media (max-width: 880px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

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

.footer-heading {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 20px;
  letter-spacing: 0.1em;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
}

/* Article (column detail / message / company)
   ========================================================================== */
.article {
  padding: 100px 0;
}

.article h2 {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.06em;
  margin: 64px 0 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-navy);
}

.article h2:first-child {
  margin-top: 0;
}

.article h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-navy);
  margin: 40px 0 16px;
  padding-left: 16px;
  border-left: 3px solid var(--color-navy);
}

.article p {
  color: var(--color-text-sub);
  margin-bottom: 20px;
  line-height: 2;
}

.article strong {
  color: var(--color-text);
}

.article ul {
  list-style: none;
  padding: 0;
  margin-bottom: 24px;
}

.article ul li {
  padding-left: 24px;
  position: relative;
  margin-bottom: 12px;
  color: var(--color-text-sub);
  line-height: 1.9;
}

.article ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--color-navy);
}

/* Profile box (message page)
   ========================================================================== */
.profile-box {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 64px;
}

@media (max-width: 768px) {
  .profile-box {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.profile-image {
  aspect-ratio: 3 / 4;
  background: linear-gradient(135deg, var(--color-bg-gray) 0%, var(--color-navy-light) 100%);
  position: relative;
}

.profile-image::after {
  content: "代表写真";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.2em;
}

.profile-info-title {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  color: var(--color-navy);
  letter-spacing: 0.2em;
  margin-bottom: 12px;
}

.profile-info-name {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 32px;
  letter-spacing: 0.06em;
}

.signature {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  text-align: right;
  margin-top: 48px;
  color: var(--color-text);
}

.signature span {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-sub);
  margin-bottom: 8px;
}

/* Table (company info)
   ========================================================================== */
.info-table {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--color-border);
}

.info-table th,
.info-table td {
  padding: 20px 24px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
  vertical-align: top;
}

.info-table th {
  width: 200px;
  background: var(--color-bg-light);
  color: var(--color-navy);
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.info-table td {
  color: var(--color-text-sub);
  line-height: 1.9;
}

@media (max-width: 640px) {
  .info-table,
  .info-table tbody,
  .info-table tr,
  .info-table th,
  .info-table td {
    display: block;
    width: 100%;
  }
  .info-table th {
    border-bottom: none;
    padding: 16px 16px 8px;
  }
  .info-table td {
    padding: 0 16px 16px;
  }
}

/* Process / Flow (services page)
   ========================================================================== */
.flow-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin: 40px 0;
}

.flow-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 24px;
  padding: 32px;
  background: var(--color-bg-light);
  border-left: 4px solid var(--color-navy);
  position: relative;
}

@media (max-width: 640px) {
  .flow-item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 24px;
  }
}

.flow-step {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-navy);
}

.flow-step strong {
  display: block;
  font-size: 2rem;
  color: var(--color-navy);
  font-weight: 600;
  margin-top: 4px;
}

.flow-content h3 {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.flow-content p {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 1.9;
}

/* Contact form
   ========================================================================== */
.contact-intro {
  text-align: center;
  margin-bottom: 64px;
  color: var(--color-text-sub);
  line-height: 2;
}

.contact-method-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 80px;
}

@media (max-width: 640px) {
  .contact-method-grid {
    grid-template-columns: 1fr;
  }
}

.contact-method-card {
  background: var(--color-bg-light);
  padding: 32px;
  text-align: center;
  border-top: 3px solid var(--color-navy);
}

.contact-method-label {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  color: var(--color-navy);
  letter-spacing: 0.2em;
  margin-bottom: 12px;
}

.contact-method-value {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.contact-method-note {
  font-size: 0.8125rem;
  color: var(--color-text-sub);
}

form.contact-form {
  background: var(--color-bg-light);
  padding: 48px;
}

@media (max-width: 640px) {
  form.contact-form {
    padding: 24px;
  }
}

.form-row {
  margin-bottom: 24px;
}

.form-row label {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-row label .required {
  color: #c44;
  font-size: 0.75rem;
  margin-left: 8px;
  font-weight: 400;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--color-text);
  transition: border-color var(--transition);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-navy);
}

.form-row textarea {
  resize: vertical;
  min-height: 160px;
}

.form-submit {
  text-align: center;
  margin-top: 40px;
}

.form-note {
  font-size: 0.8125rem;
  color: var(--color-text-sub);
  text-align: center;
  margin-top: 16px;
}

/* Stat block (TOP)
   ========================================================================== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 64px;
}

@media (max-width: 880px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stat {
  text-align: center;
  padding: 32px 16px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
}

.stat-num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-num small {
  font-size: 0.875rem;
  margin-left: 4px;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-sub);
}

/* Fade-in animation
   ========================================================================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* =====================================================
   Mobile Polishing  (final pass)
   ===================================================== */

@media (max-width: 768px) {
  /* Section headings — smaller margins */
  .section-heading {
    margin-bottom: 44px;
  }

  /* Stats — tighter spacing */
  .stats {
    margin-top: 44px;
    gap: 16px;
  }
  .stat {
    padding: 24px 12px;
  }
  .stat-num {
    font-size: 2rem;
  }

  /* About grid — better stacking, smaller hero image on phone */
  .about-image {
    aspect-ratio: 16 / 10;
    max-height: 280px;
  }

  /* Service cards — tighter padding */
  .service-card-body {
    padding: 24px 22px;
  }
  .service-card-visual {
    aspect-ratio: 16 / 9;
  }
  .service-card-visual-icon {
    font-size: 2.25rem;
  }
  .service-card-title {
    font-size: 1.125rem;
  }

  /* Voice cards */
  .voice-card {
    padding: 28px 22px;
  }
  .voice-card-quote {
    font-size: 2.75rem;
    top: 16px;
    left: 16px;
  }
  .voice-card-title {
    font-size: 1rem;
    padding-top: 24px;
  }

  /* Column cards */
  .column-card-title {
    font-size: 1rem;
  }

  /* Section CTA */
  .section-cta h2 {
    font-size: 1.375rem;
  }
  .section-cta p {
    font-size: 0.9375rem;
  }

  /* Page hero (sub pages) */
  .page-hero {
    padding: 60px 0 48px;
  }
  .page-hero-title {
    font-size: 1.625rem;
    letter-spacing: 0.06em;
  }

  /* Article (column / company / message body) */
  .article {
    padding: 64px 0;
  }
  .article h2 {
    font-size: 1.375rem;
    margin: 48px 0 20px;
    padding-bottom: 12px;
  }
  .article h3 {
    font-size: 1.0625rem;
    margin: 32px 0 12px;
  }
  .article p {
    font-size: 0.9375rem;
    line-height: 1.95;
  }

  /* Profile box (message page) */
  .profile-image {
    aspect-ratio: 1 / 1;
    max-width: 220px;
    margin: 0 auto;
  }
  .profile-info-name {
    font-size: 1.5rem;
    text-align: center;
  }
  .profile-info-title {
    text-align: center;
  }

  /* Info table — already stack at 640px but improve typography */
  .info-table th {
    font-size: 0.875rem;
  }
  .info-table td {
    font-size: 0.9375rem;
  }

  /* Flow items (services page) */
  .flow-item {
    padding: 24px 20px;
  }
  .flow-step strong {
    font-size: 1.625rem;
  }
  .flow-content h3 {
    font-size: 1rem;
  }
  .flow-content p {
    font-size: 0.875rem;
  }

  /* Contact form */
  .contact-method-card {
    padding: 24px;
  }
  .contact-method-value {
    font-size: 1.25rem;
    word-break: break-all;
  }
  form.contact-form {
    padding: 28px 20px;
  }
  .form-row {
    margin-bottom: 20px;
  }
  .form-row label {
    font-size: 0.875rem;
  }

  /* Buttons — full-width on phone for easier tap */
  .btn {
    width: 100%;
    padding: 16px 24px;
    min-width: 0;
  }
  .hero-actions .btn,
  .section-cta .hero-actions .btn {
    width: auto;
    min-width: 240px;
  }

  /* Footer brand */
  .site-footer {
    padding-top: 56px;
  }
  .footer-brand {
    font-size: 1rem;
  }
  .footer-address {
    font-size: 0.8125rem;
  }

  /* Philosophy text — smaller on phone */
  .philosophy-text {
    font-size: 1.125rem;
    line-height: 2;
    letter-spacing: 0.08em;
  }
  .philosophy-eyebrow {
    margin-bottom: 24px;
  }

  /* News list — text size */
  .news-title {
    font-size: 0.9375rem;
    line-height: 1.6;
  }
  .news-date {
    font-size: 0.8125rem;
  }

  /* Breadcrumb */
  .breadcrumb {
    padding: 12px 0;
    font-size: 0.75rem;
  }

  /* Section about — tighter gap */
  .about-grid {
    gap: 32px;
  }

  /* Section about right text size */
  .about-text p {
    font-size: 0.9375rem;
    line-height: 1.95;
  }

  /* Tap-friendly: minimum link/button touch target */
  .site-nav a,
  .footer-links a,
  .news-item,
  .nav-toggle {
    min-height: 44px;
  }
}

@media (max-width: 480px) {
  /* Tighten further on very small phones */
  .section-heading {
    margin-bottom: 36px;
  }
  .section-heading-jp {
    font-size: 1.375rem;
  }
  .section-heading-en {
    font-size: 0.75rem;
    margin-bottom: 12px;
  }

  /* Hero text scaling on small phones */
  .hero-title {
    font-size: 1.625rem;
    line-height: 1.7;
  }
  .hero-lead {
    font-size: 0.875rem;
    line-height: 1.9;
  }
  .hero-eyebrow {
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    margin-bottom: 20px;
  }

  /* About image more compact */
  .about-image {
    max-height: 220px;
  }

  /* Service cards single column already at 640px */
  .grid-3 {
    gap: 20px;
  }

  /* Voice and Column grids single column already */
  .grid-2 {
    gap: 20px;
  }

  /* Page hero on tiny phones */
  .page-hero {
    padding: 48px 0 40px;
  }
  .page-hero-title {
    font-size: 1.375rem;
  }
  .page-hero-en {
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    margin-bottom: 12px;
  }

  /* Article reduced */
  .article {
    padding: 52px 0;
  }
  .article h2 {
    font-size: 1.25rem;
    margin: 40px 0 16px;
  }

  /* Signature */
  .signature {
    font-size: 1rem;
    text-align: center;
  }

  /* CTA section — buttons stack and full width */
  .section-cta .hero-actions {
    flex-direction: column;
    gap: 12px;
  }
  .section-cta .hero-actions .btn {
    width: 100%;
    min-width: 0;
  }
}

/* Prefers reduced motion — disable hero animations */
@media (prefers-reduced-motion: reduce) {
  .hero-slide,
  .hero-scroll::after,
  .fade-in {
    animation: none !important;
    transition: none !important;
  }
  .hero-slide:first-child {
    opacity: 1 !important;
  }
}