:root {
    --ink: #0a1420;
    --ink-2: #0d1b2a;
    --ink-3: #12263a;
    --steel: #1b2d44;
    --gold: #c9a66b;
    --gold-dark: #a6854f;
    --bone: #f5f1e8;
    --bone-2: #ebe5d6;
    --paper: #ffffff;
    --text: #1a1f28;
    --text-mid: #4a5160;
    --text-low: #8a8f99;
    --line: #dcd6c6;
    --red-classified: #8b1a1a;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: "Noto Serif JP", "Yu Mincho", serif;
    color: var(--text);
    background: var(--bone);
    line-height: 1.75;
    font-size: 18px;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }

  /* ==================== Header ==================== */
  header.site-header {
    position: fixed; top: 0; left: 0; right: 0;
    background: rgba(10, 20, 32, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(201, 166, 107, 0.2);
    z-index: 1000;
    padding: 10px 0;
  }
  .header-inner {
    max-width: 1240px; margin: 0 auto; padding: 0 26px;
    display: flex; align-items: center; justify-content: space-between;
  }
  .brand { color: var(--bone); display: flex; align-items: center; gap: 12px; }
  .brand-mark {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
  }
  .brand-mark img, .brand-mark svg {
    width: 100%; height: 100%; display: block;
  }
  .brand-text { line-height: 1.3; }
  .brand-text .jp { font-size: 16.5px; font-weight: 500; letter-spacing: 1.6px; }
  .brand-text .en { display: none; }
  nav.primary ul { display: flex; list-style: none; gap: 24px; }
  nav.primary a {
    color: var(--bone);
    font-family: "Inter", "Noto Serif JP", sans-serif;
    font-size: 14px; font-weight: 500;
    letter-spacing: 1.1px;
    padding: 6px 0;
    position: relative;
    transition: color 0.3s;
  }
  nav.primary a::after {
    content: ""; position: absolute; bottom: 0; left: 0; right: 0;
    height: 1px; background: var(--gold);
    transform: scaleX(0); transform-origin: left;
    transition: transform 0.4s ease;
  }
  nav.primary a:hover { color: var(--gold); }
  nav.primary a:hover::after { transform: scaleX(1); }
  .header-cta {
    font-family: "Inter", sans-serif;
    font-size: 13px; letter-spacing: 1.3px;
    color: var(--ink); background: var(--gold);
    padding: 8px 16px;
    border: 1px solid var(--gold);
    transition: all 0.3s;
  }
  .header-cta:hover { background: transparent; color: var(--gold); }
  .menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 42px; height: 42px;
    align-items: center;
    justify-content: center;
  }
  .menu-toggle .hamburger {
    display: block;
    width: 22px;
    height: 14px;
    background-image:
      linear-gradient(#c9a66b, #c9a66b),
      linear-gradient(#c9a66b, #c9a66b),
      linear-gradient(#c9a66b, #c9a66b);
    background-repeat: no-repeat;
    background-size: 100% 2px;
    background-position: left top, left center, left bottom;
  }

  /* SVGアイコン共通 */
  .icon-svg { width: 14px; height: 14px; display: inline-block; vertical-align: middle; flex-shrink: 0; }
  .btn-primary .icon-svg, .btn-secondary .icon-svg { width: 16px; height: 16px; }
  .floating-contact .icon-svg { width: 15px; height: 15px; }
  .back-to-top .icon-svg { width: 15px; height: 15px; }

  /* ==================== Hero ==================== */
  .hero {
    position: relative;
    min-height: 92vh;
    background:
      linear-gradient(180deg, rgba(10,20,32,0.95) 0%, rgba(13,27,42,0.90) 50%, rgba(10,20,32,0.98) 100%),
      radial-gradient(ellipse at top right, rgba(201,166,107,0.12), transparent 55%),
      var(--ink);
    color: var(--bone);
    display: flex; align-items: center;
    padding: 140px 32px 100px;
    overflow: hidden;
  }
  .hero-inner {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 72px;
    align-items: center;
  }
  .hero-content { min-width: 0; }
  .hero-visual {
    position: relative;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .hero-visual-frame {
    position: relative;
    aspect-ratio: 3 / 4;
    max-height: 620px;
    margin: 0 auto;
    width: 100%;
    max-width: 440px;
    padding: 10px;
    background: rgba(245, 241, 232, 0.02);
    border: 1px solid rgba(201, 166, 107, 0.3);
    box-shadow:
      0 40px 100px -40px rgba(0,0,0,0.8),
      0 0 0 1px rgba(201, 166, 107, 0.08);
  }
  .hero-visual-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: contrast(1.05) saturate(0.85);
  }
  .hero-visual-corner {
    position: absolute;
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--gold);
    pointer-events: none;
  }
  .hero-visual-corner.tl { top: -1px; left: -1px; border-right: none; border-bottom: none; }
  .hero-visual-corner.tr { top: -1px; right: -1px; border-left: none; border-bottom: none; }
  .hero-visual-corner.bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
  .hero-visual-corner.br { bottom: -1px; right: -1px; border-left: none; border-top: none; }
  .hero-visual-caption {
    margin-top: 22px;
    padding-left: 14px;
    border-left: 2px solid var(--gold);
    max-width: 440px;
  }
  .hero-visual-caption .tag {
    display: block;
    font-family: "Inter", sans-serif;
    font-size: 10px;
    letter-spacing: 2.2px;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 6px;
  }
  .hero-visual-caption .desc {
    display: block;
    font-size: 12px;
    line-height: 1.7;
    color: rgba(245, 241, 232, 0.7);
    font-weight: 300;
  }

  @media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; gap: 48px; }
    .hero-visual-frame { max-width: 380px; }
  }
  @media (max-width: 768px) {
    .hero-inner { gap: 36px; }
    .hero-visual-frame { max-width: 300px; aspect-ratio: 4 / 5; }
    .hero-visual-caption { margin-top: 16px; max-width: 300px; margin-left: auto; margin-right: auto; }
  }
  .hero::before {
    content: ""; position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(201,166,107,0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(201,166,107,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
  }
  .hero-inner {
    max-width: 1240px; margin: 0 auto; width: 100%;
    position: relative; z-index: 2;
  }
  .hero-classification {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: "Inter", sans-serif;
    font-size: 11.5px; letter-spacing: 1.6px;
    color: var(--gold); text-transform: uppercase;
    border: 1px solid rgba(201, 166, 107, 0.4);
    padding: 5px 11px;
    margin-bottom: 18px;
  }
  .hero-classification::before {
    content: ""; width: 6px; height: 6px;
    background: var(--gold); border-radius: 50%;
    box-shadow: 0 0 8px var(--gold);
  }
  .hero h1 {
    font-size: 42px;
    font-weight: 500;
    line-height: 1.55;
    letter-spacing: 0.3px;
    margin-bottom: 16px;
    color: var(--bone);
  }
  .hero h1 .accent { color: var(--gold); }
  .hero .lead {
    font-size: 16.5px;
    line-height: 1.9;
    max-width: 620px;
    color: rgba(245, 241, 232, 0.85);
    margin-bottom: 22px;
    font-weight: 300;
  }
  .hero-meta {
    display: flex; gap: 42px; flex-wrap: wrap;
    padding-top: 18px;
    margin-top: 22px;
    border-top: 1px solid rgba(201, 166, 107, 0.25);
  }
  .hero-meta-item {
    font-family: "Inter", sans-serif;
  }
  .hero-meta-item .label {
    display: block;
    font-size: 11.5px; letter-spacing: 1.4px;
    color: var(--gold); text-transform: uppercase;
    margin-bottom: 3px;
  }
  .hero-meta-item .value {
    font-size: 15px; font-weight: 500;
    color: var(--bone);
    font-family: "Noto Serif JP", serif;
  }
  .hero-cta-row {
    display: flex; gap: 14px; margin-top: 38px; flex-wrap: wrap;
  }
  .btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--gold); color: var(--ink);
    padding: 11px 22px;
    font-family: "Inter", sans-serif;
    font-size: 14px; letter-spacing: 1.2px; font-weight: 600;
    border: 1px solid var(--gold);
    transition: all 0.3s;
  }
  .btn-primary:hover { background: transparent; color: var(--gold); }
  .btn-secondary {
    display: inline-flex; align-items: center; gap: 8px;
    background: transparent; color: var(--bone);
    padding: 11px 22px;
    font-family: "Inter", sans-serif;
    font-size: 14px; letter-spacing: 1.2px; font-weight: 500;
    border: 1px solid rgba(245, 241, 232, 0.4);
    transition: all 0.3s;
  }
  .btn-secondary:hover { border-color: var(--gold); color: var(--gold); }

  /* ==================== Section Common ==================== */
  section { padding: 110px 32px; }
  .container { max-width: 1240px; margin: 0 auto; }
  .section-label {
    display: flex; align-items: center; gap: 14px;
    font-family: "Cormorant Garamond", "Inter", serif;
    font-size: 16px; letter-spacing: 2px;
    color: var(--gold-dark); text-transform: uppercase;
    margin-bottom: 14px;
    font-weight: 500;
  }
  .section-label::before {
    content: ""; width: 28px; height: 1px; background: var(--gold-dark);
  }
  .section-title {
    font-size: 32px;
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: 0.5px;
    color: var(--ink);
    margin-bottom: 14px;
  }
  .section-title .en {
    display: block;
    font-family: "Cormorant Garamond", serif;
    font-style: italic;
    font-size: 0.42em;
    color: var(--gold-dark);
    letter-spacing: 1.3px;
    margin-top: 4px;
    text-transform: uppercase;
  }
  .section-lead {
    font-size: 16.5px;
    line-height: 1.85;
    color: var(--text-mid);
    max-width: 640px;
    margin-bottom: 36px;
    font-weight: 300;
  }

  /* ==================== Mission ==================== */
  .mission {
    background: var(--bone);
    position: relative;
  }
  .mission-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr; gap: 72px;
    align-items: start;
  }
  .mission-statement { border-left: 2px solid var(--gold); padding-left: 30px; }
  .mission-statement p { font-size: 16.5px; line-height: 1.85; color: var(--text); margin-bottom: 14px; }
  .mission-statement p.kicker { font-size: 19px; color: var(--ink-2); font-weight: 500; margin-bottom: 18px; }

  /* ==================== Scope（対応領域） ==================== */
  .scope {
    background: var(--ink);
    color: var(--bone);
    position: relative;
  }
  .scope::before {
    content: ""; position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(201,166,107,0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(201,166,107,0.03) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
  }
  .scope .section-title { color: var(--bone); }
  .scope .section-lead { color: rgba(245, 241, 232, 0.75); }
  .scope-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2px;
    background: rgba(201, 166, 107, 0.15);
    border: 1px solid rgba(201, 166, 107, 0.15);
    position: relative; z-index: 2;
  }
  .scope-item { background: var(--ink); padding: 38px 26px;
    display: flex; flex-direction: column; gap: 16px;
    transition: background 0.4s;
  }
  .scope-item:hover { background: var(--ink-2); }
  .scope-item .num { font-family: "Cormorant Garamond", serif; font-size: 17px;
    font-style: italic;
    font-weight: 500;
    color: var(--gold);
    letter-spacing: 2px;
  }
  .scope-item .icon { font-size: 28px; color: var(--gold);
    margin: 8px 0;
  }
  .scope-item h3 { font-size: 16px;
    font-weight: 600;
    line-height: 1.7;
    color: var(--bone);
    letter-spacing: 0.5px;
  }
  .scope-item p { font-size: 13.5px;
    color: rgba(245, 241, 232, 0.6);
    line-height: 1.9;
    font-family: "Inter", "Noto Serif JP", sans-serif;
  }

  /* ==================== Services 4本柱 ==================== */
  .services {
    background: var(--bone);
  }
  .service-item { display: grid; grid-template-columns: 1fr 1.3fr; gap: 72px;
    align-items: center; padding: 72px 0; border-bottom: 1px solid var(--line);
  }
  .service-item:last-child { border-bottom: none; }
  .service-item.reverse { direction: rtl; }
  .service-item.reverse > * { direction: ltr; }
  .service-visual {
    aspect-ratio: 4 / 3;
    background: var(--ink-2);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
  }
  .service-visual img {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    filter: brightness(0.55) contrast(1.05) saturate(0.75) sepia(0.1);
    transition: filter 0.6s ease, transform 0.6s ease;
  }
  .service-visual:hover img {
    filter: brightness(0.7) contrast(1.1) saturate(0.85) sepia(0.1);
    transform: scale(1.03);
  }
  .service-visual::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(10,20,32,0.2) 0%, rgba(10,20,32,0.55) 100%);
    pointer-events: none;
  }
  .service-visual .number { position: absolute; top: 12px; left: 16px; font-family: "Cormorant Garamond", serif; font-size: 38px;
    color: var(--gold);
    line-height: 1;
    z-index: 2;
    text-shadow: 0 2px 12px rgba(0,0,0,0.6);
  }
  .service-visual .tag {
    position: absolute; bottom: 20px; left: 24px;
    z-index: 2;
    font-family: "Inter", sans-serif;
    font-size: 13.5px;
    letter-spacing: 2px;
    color: var(--gold);
    text-transform: uppercase;
    border: 1px solid rgba(201,166,107,0.5);
    padding: 6px 12px;
    background: rgba(10,20,32,0.6);
    backdrop-filter: blur(4px);
  }
  .service-text .service-tag { font-family: "Inter", sans-serif; font-size: 11.5px; letter-spacing: 1.6px;
    color: var(--gold-dark); text-transform: uppercase; margin-bottom: 10px; } .service-text h3 { font-size: 24px; font-weight: 500; color: var(--ink); line-height: 1.5; margin-bottom: 12px; letter-spacing: 0.3px; }
  .service-text .desc { font-size: 16.5px; line-height: 1.9; color: var(--text-mid); margin-bottom: 16px;
    font-weight: 300;
  }
  .service-text ul {
    list-style: none;
    margin-bottom: 32px;
  }
  .service-text ul li { position: relative; padding: 7px 0 7px 22px; font-size: 15px;
    color: var(--text);
    border-bottom: 1px solid var(--line);
  }
  .service-text ul li::before {
    content: ""; position: absolute;
    left: 0; top: 20px;
    width: 14px; height: 1px; background: var(--gold);
  }
  .service-text .more-link { display: inline-flex; align-items: center; gap: 10px; font-family: "Inter", sans-serif; font-size: 13px; letter-spacing: 1.2px;
    color: var(--ink-2);
    padding-bottom: 4px;
    border-bottom: 1px solid var(--gold);
    transition: all 0.3s;
  }
  .more-link:hover { color: var(--gold-dark); gap: 18px; }

  /* ==================== GEO Section（新設） ==================== */
  .geo {
    background:
      linear-gradient(180deg, rgba(13,27,42,0.96) 0%, rgba(10,20,32,0.98) 100%),
      url('assets/images/geo_bg.jpg') center/cover no-repeat fixed,
      var(--ink);
    color: var(--bone);
    position: relative;
    overflow: hidden;
  }
  .geo::before {
    content: "GEO";
    position: absolute;
    top: 40px; right: -20px;
    font-family: "Cormorant Garamond", serif;
    font-size: 160px;
    font-weight: 600;
    color: rgba(201, 166, 107, 0.04);
    line-height: 1;
    letter-spacing: -8px;
    pointer-events: none;
  }
  .geo .container { position: relative; z-index: 2; }
  .geo .section-label { color: var(--gold); }
  .geo .section-label::before { background: var(--gold); }
  .geo .section-title { color: var(--bone); }
  .geo .section-title .en { color: var(--gold); }
  .geo .section-lead { color: rgba(245, 241, 232, 0.8); max-width: 820px; }

  .geo-intro { background: rgba(201, 166, 107, 0.06); border: 1px solid rgba(201, 166, 107, 0.2); border-left: 3px solid var(--gold); padding: 28px 36px;
    margin-bottom: 72px;
    max-width: 880px;
  }
  .geo-intro p { font-size: 16px;
    line-height: 2.1;
    color: rgba(245, 241, 232, 0.9);
    font-weight: 300;
  }
  .geo-intro strong { color: var(--gold); font-weight: 500; }

  .geo-targets {
    display: flex; flex-wrap: wrap; gap: 12px;
    margin-bottom: 80px;
  }
  .geo-target-chip { display: inline-flex; align-items: center; gap: 8px; padding: 7px 13px; background: rgba(245, 241, 232, 0.05); border: 1px solid rgba(201, 166, 107, 0.3); font-family: "Inter", sans-serif; font-size: 13px;
    letter-spacing: 1.5px;
    color: var(--bone);
  }
  .geo-target-chip i { color: var(--gold); }

  .geo-phases {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 72px;
  }
  .geo-phase { background: rgba(245, 241, 232, 0.03); border: 1px solid rgba(201, 166, 107, 0.2); padding: 42px 32px;
    position: relative;
    transition: all 0.4s;
  }
  .geo-phase:hover {
    background: rgba(245, 241, 232, 0.05);
    border-color: var(--gold);
    transform: translateY(-4px);
  }
  .geo-phase .phase-num {
    font-family: "Cormorant Garamond", serif;
    font-size: 19px;
    letter-spacing: 3px;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 12px;
  }
  .geo-phase h4 { font-size: 19px; font-weight: 500; color: var(--bone); margin-bottom: 10px;
    letter-spacing: 1px;
  }
  .geo-phase p { font-size: 14.5px; line-height: 1.85;
    color: rgba(245, 241, 232, 0.7);
    font-weight: 300;
    margin-bottom: 20px;
  }
  .geo-phase ul {
    list-style: none;
    padding-top: 20px;
    border-top: 1px solid rgba(201, 166, 107, 0.2);
  }
  .geo-phase ul li { font-size: 13.5px;
    color: rgba(245, 241, 232, 0.75);
    padding: 6px 0 6px 18px;
    position: relative;
  }
  .geo-phase ul li::before {
    content: ""; position: absolute;
    left: 0; top: 14px; width: 8px; height: 1px; background: var(--gold);
  }

  .geo-note { font-family: "Inter", sans-serif; font-size: 13.5px;
    color: rgba(245, 241, 232, 0.55);
    border-left: 2px solid rgba(201, 166, 107, 0.3);
    padding-left: 20px;
    max-width: 760px;
    line-height: 1.9;
  }

  /* ==================== Expertise Matrix ==================== */
  .expertise {
    background: var(--bone);
  }
  .expertise-matrix {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
  }
  .expertise-cell { background: var(--paper); padding: 40px 28px;
    text-align: center;
    display: flex; flex-direction: column; gap: 12px; align-items: center;
    transition: all 0.3s;
  }
  .expertise-cell:hover {
    background: var(--ink);
    color: var(--bone);
  }
  .expertise-cell:hover h4 { color: var(--bone); }
  .expertise-cell:hover p { color: rgba(245, 241, 232, 0.7); }
  .expertise-cell:hover .icon { color: var(--gold); }
  .expertise-cell .icon { font-size: 28px;
    color: var(--gold-dark);
    margin-bottom: 8px;
  }
  .expertise-cell h4 { font-size: 15px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 1px;
    line-height: 1.6;
  }
  .expertise-cell p { font-size: 12.5px;
    color: var(--text-low);
    font-family: "Inter", sans-serif;
    letter-spacing: 1px;
    text-transform: uppercase;
  }

  /* ==================== Cases ==================== */
  .cases {
    background: var(--ink);
    color: var(--bone);
  }
  .cases .section-title { color: var(--bone); }
  .cases .section-lead { color: rgba(245, 241, 232, 0.75); }
  .case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
  .case-card {
    background: var(--ink-2);
    border: 1px solid rgba(201, 166, 107, 0.2);
    overflow: hidden;
    transition: all 0.4s;
  }
  .case-card:hover {
    border-color: var(--gold);
    transform: translateY(-4px);
  }
  .case-visual {
    aspect-ratio: 16 / 9;
    background: var(--ink);
    position: relative;
    border-bottom: 1px solid rgba(201, 166, 107, 0.2);
    overflow: hidden;
  }
  .case-visual img {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    filter: brightness(0.55) contrast(1.05) saturate(0.6) sepia(0.12);
    transition: filter 0.5s, transform 0.6s;
  }
  .case-card:hover .case-visual img {
    filter: brightness(0.7) contrast(1.1) saturate(0.8);
    transform: scale(1.04);
  }
  .case-visual::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(10,20,32,0.3) 0%, rgba(10,20,32,0.7) 100%);
    pointer-events: none;
  }
  .case-visual .classified { position: absolute; top: 16px; right: 16px; font-family: "Inter", sans-serif; font-size: 11px; letter-spacing: 1.2px;
    color: var(--gold);
    border: 1px solid rgba(201, 166, 107, 0.5);
    padding: 4px 10px;
  }
  .case-body { padding: 30px 26px; }
  .case-body .case-cat { font-family: "Inter", sans-serif; font-size: 11.5px; letter-spacing: 1.4px;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 14px;
  }
  .case-body h4 { font-size: 17px;
    font-weight: 500;
    color: var(--bone);
    line-height: 1.7;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
  }
  .case-body p { font-size: 14.5px; color: rgba(245, 241, 232, 0.7); line-height: 1.8;
    margin-bottom: 24px;
    font-weight: 300;
  }
  .case-body .case-link { display: inline-flex; align-items: center; gap: 10px; font-family: "Inter", sans-serif; font-size: 13px; letter-spacing: 1.2px;
    color: var(--gold);
    padding-bottom: 4px;
    border-bottom: 1px solid var(--gold);
  }
  .case-body .note { display: block; font-size: 12.5px;
    color: rgba(245, 241, 232, 0.4);
    margin-top: 12px;
    font-family: "Inter", sans-serif;
  }

  /* ==================== Compliance ==================== */
  .compliance { background: var(--bone-2); padding: 72px 32px;
  }
  .compliance-inner {
    max-width: 1000px; margin: 0 auto;
    text-align: center;
  }
  .compliance h3 { font-size: 21px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 20px;
    letter-spacing: 1.5px;
  }
  .compliance p { font-size: 16px; line-height: 1.85;
    color: var(--text-mid);
    max-width: 760px;
    margin: 0 auto 24px;
    font-weight: 300;
  }
  .compliance .seals {
    display: flex; gap: 24px; justify-content: center; flex-wrap: wrap;
    margin-top: 32px;
  }
  .compliance .seal { font-family: "Inter", sans-serif; font-size: 12.5px; letter-spacing: 1.2px;
    color: var(--text-mid);
    padding: 10px 20px;
    border: 1px solid var(--line);
    background: var(--paper);
  }

  /* ==================== CTA Band ==================== */
  .cta-band { background: var(--ink); color: var(--bone); padding: 90px 32px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .cta-band::before {
    content: ""; position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(201,166,107,0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(201,166,107,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
  }
  .cta-band-inner {
    position: relative; z-index: 2;
    max-width: 900px; margin: 0 auto;
  }
  .cta-band .section-label {
    justify-content: center;
    color: var(--gold);
  }
  .cta-band .section-label::before,
  .cta-band .section-label::after {
    content: ""; width: 32px; height: 1px; background: var(--gold);
  }
  .cta-band h2 { font-size: 32px;
    font-weight: 500;
    color: var(--bone);
    line-height: 1.6;
    margin-bottom: 24px;
    letter-spacing: 2px;
  }
  .cta-band p { font-size: 16px; color: rgba(245, 241, 232, 0.8); line-height: 1.85; margin-bottom: 28px;
    font-weight: 300;
  }
  .cta-buttons {
    display: flex; gap: 20px; justify-content: center; flex-wrap: wrap;
  }

  /* ==================== Footer ==================== */
  footer.site-footer { background: var(--ink-2); color: rgba(245, 241, 232, 0.8); padding: 74px 32px 30px;
    border-top: 1px solid rgba(201, 166, 107, 0.2);
  }
  .footer-inner { max-width: 1080px; margin: 0 auto; display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; padding-bottom: 28px;
    border-bottom: 1px solid rgba(201, 166, 107, 0.15);
  }
  .footer-brand h3 { font-size: 16px;
    font-weight: 500;
    color: var(--bone);
    letter-spacing: 1.5px;
    margin-bottom: 16px;
    line-height: 1.7;
  }
  .footer-brand .en-name { font-family: "Cormorant Garamond", serif; font-style: italic; font-size: 13.5px;
    color: var(--gold);
    letter-spacing: 2px;
    margin-bottom: 20px;
  }
  .footer-brand p { font-size: 14px;
    line-height: 2;
    color: rgba(245, 241, 232, 0.65);
    font-weight: 300;
  }
  .footer-col h4 { font-family: "Inter", sans-serif; font-size: 11.5px; letter-spacing: 2px;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(201, 166, 107, 0.2);
  }
  .footer-col ul { list-style: none; }
  .footer-col ul li { margin-bottom: 12px; }
  .footer-col ul li a { font-size: 14px;
    color: rgba(245, 241, 232, 0.75);
    transition: color 0.3s;
  }
  .footer-col ul li a:hover { color: var(--gold); }
  .footer-col .contact-item { font-size: 14px;
    line-height: 1.9;
    color: rgba(245, 241, 232, 0.75);
    margin-bottom: 12px;
  }
  .footer-col .contact-item strong { display: block; font-size: 11.5px;
    color: var(--gold);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 4px;
    font-weight: 500;
  }
  .footer-bottom {
    max-width: 1240px; margin: 0 auto;
    padding-top: 32px;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 16px;
  }
  .footer-bottom p { font-family: "Inter", sans-serif; font-size: 13px;
    color: rgba(245, 241, 232, 0.5);
    letter-spacing: 1px;
  }
  .footer-bottom .legal-links { display: flex; gap: 24px; }
  .footer-bottom .legal-links a { font-family: "Inter", sans-serif; font-size: 13px;
    color: rgba(245, 241, 232, 0.5);
    letter-spacing: 1px;
  }
  .footer-bottom .legal-links a:hover { color: var(--gold); }

  /* ==================== Floating Contact ==================== */
  .floating-contact { position: fixed; right: 16px; bottom: 16px; z-index: 900; display: flex; align-items: center; gap: 8px; padding: 9px 15px;
    background: var(--ink);
    border: 1px solid var(--gold);
    color: var(--bone);
    font-family: "Inter", sans-serif;
    font-size: 13px; letter-spacing: 1.5px;
    box-shadow: 0 10px 40px rgba(10, 20, 32, 0.4);
    transition: all 0.3s;
  }
  .floating-contact:hover {
    background: var(--gold);
    color: var(--ink);
  }
  .floating-contact i { font-size: 14.5px; }

  /* ==================== Responsive ==================== */
  @media (max-width: 1024px) {
    .mission-grid { grid-template-columns: 1fr; gap: 48px; }
    .service-item { grid-template-columns: 1fr; gap: 40px; padding: 60px 0; }
    .service-item.reverse { direction: ltr; }
    .scope-grid { grid-template-columns: repeat(2, 1fr); }
    .geo-phases { grid-template-columns: 1fr; gap: 20px; }
    .expertise-matrix { grid-template-columns: repeat(2, 1fr); }
    .case-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  }
  @media (max-width: 768px) {
    section { padding: 80px 24px; }
    .header-inner { padding: 0 20px; }
    nav.primary { display: none; }
    nav.primary.open {
      display: block;
      position: absolute; top: 100%; left: 0; right: 0;
      background: var(--ink); padding: 24px;
      border-top: 1px solid rgba(201, 166, 107, 0.2);
    }
    nav.primary.open ul { flex-direction: column; gap: 20px; }
    .menu-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 42px; height: 42px;
      border: 1px solid rgba(201, 166, 107, 0.5);
      color: var(--gold);
      flex-shrink: 0;
    }
    .menu-toggle:hover { background: rgba(201,166,107,0.08); }
    /* モバイル：トップバーの日本語社名を確実に1行に収める */
    .brand { gap: 10px; flex: 1; min-width: 0; }
    .brand-mark { width: 28px; height: 28px; }
    .brand-text { min-width: 0; flex: 1; }
    .brand-text .jp {
      font-size: 11px;
      letter-spacing: 0;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: clip;
    }
    .brand-text .en { display: none; }
    nav.primary.open {
      padding: 20px 24px;
      box-shadow: 0 20px 40px -20px rgba(0,0,0,0.6);
    }
    nav.primary.open ul { gap: 14px; }
    nav.primary.open ul li a {
      display: block;
      padding: 10px 0;
      border-bottom: 1px solid rgba(201, 166, 107, 0.15);
      font-size: 13px;
    }
    nav.primary.open ul li:last-child a { border-bottom: none; }
    .header-cta { display: none; }
    .hero { padding: 120px 24px 80px; min-height: auto; }
    .hero-meta { gap: 24px; }
    .hero-cta-row { flex-direction: column; }
    .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
    .scope-grid { grid-template-columns: 1fr; }
    .expertise-matrix { grid-template-columns: 1fr; }
    .geo::before { font-size: 180px; }
    .geo-phase { padding: 36px 28px; }
    .cta-buttons { flex-direction: column; }
    .cta-buttons .btn-primary, .cta-buttons .btn-secondary { width: 100%; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .floating-contact { padding: 12px 18px; font-size: 14.5px; }
  }

  /* ==================== Sub-Page Common ==================== */
  .page-hero { position: relative; min-height: auto; padding: 150px 32px 84px;
    background:
      linear-gradient(180deg, rgba(10,20,32,0.90) 0%, rgba(10,20,32,0.82) 40%, rgba(10,20,32,0.96) 100%),
      var(--ink);
    color: var(--bone);
    display: flex; align-items: center;
    overflow: hidden;
  }
  .page-hero::before {
    content: ""; position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(201,166,107,0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(201,166,107,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
  }
  .page-hero-img {
    position: absolute; inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.25;
    filter: saturate(0.6) brightness(0.7);
  }
  .page-hero-inner {
    position: relative; z-index: 2;
    max-width: 1240px; margin: 0 auto; width: 100%;
  }
  .breadcrumb { display: flex; align-items: center; gap: 8px; font-family: "Inter", sans-serif; font-size: 11.5px; letter-spacing: 1.3px;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 24px;
  }
  .breadcrumb a { color: rgba(245,241,232,0.6); transition: color 0.3s; }
  .breadcrumb a:hover { color: var(--gold); }
  .breadcrumb .sep { color: rgba(201,166,107,0.4); }
  .page-hero h1 { font-size: 32px;
    font-weight: 500;
    letter-spacing: 2px;
    line-height: 1.5;
    color: var(--bone);
    margin-bottom: 20px;
  }
  .page-hero .subtitle { font-family: "Cormorant Garamond", serif; font-style: italic; font-size: 16px;
    color: var(--gold);
    letter-spacing: 2px;
    margin-bottom: 24px;
  }
  .page-hero .lead { font-size: 16.5px;
    line-height: 2.1;
    max-width: 760px;
    color: rgba(245,241,232,0.8);
    font-weight: 300;
  }

  .page-section { padding: 90px 32px;
    background: var(--bone);
  }
  .page-section.alt { background: var(--bone-2); }
  .page-section.dark {
    background: var(--ink);
    color: var(--bone);
  }
  .page-section.dark .page-h2 { color: var(--bone); }
  .page-section.dark .page-h3 { color: var(--bone); }
  .page-section.dark p { color: rgba(245,241,232,0.78); }
  .page-section.dark .page-card { background: var(--ink-2); border-color: rgba(201,166,107,0.2); }
  .page-section.dark .page-card h4 { color: var(--bone); }
  .page-section.dark .page-card p { color: rgba(245,241,232,0.72); }
  .page-container { max-width: 980px; margin: 0 auto; }
  .page-container.wide { max-width: 1240px; }
  .page-h2 { font-size: 30px;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.5;
    letter-spacing: 1.5px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
    position: relative;
  }
  .page-h2::after {
    content: ""; position: absolute;
    left: 0; bottom: -1px;
    width: 80px; height: 2px;
    background: var(--gold);
  }
  .page-h2 .num {
    font-family: "Cormorant Garamond", serif;
    font-style: italic;
    font-size: 0.75em;
    color: var(--gold-dark);
    margin-right: 18px;
    letter-spacing: 2px;
    font-weight: 500;
  }
  .page-h3 { font-size: 18px;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.7;
    letter-spacing: 1px;
    margin: 48px 0 20px;
    padding-left: 20px;
    border-left: 3px solid var(--gold);
  }
  .page-section p { font-size: 16.5px; line-height: 1.9;
    color: var(--text-mid);
    margin-bottom: 20px;
    font-weight: 300;
  }
  .page-section ul.styled {
    list-style: none;
    margin: 24px 0 32px;
  }
  .page-section ul.styled li { position: relative; padding: 9px 0 9px 22px; font-size: 15px;
    line-height: 1.9;
    color: var(--text);
    border-bottom: 1px solid var(--line);
  }
  .page-section ul.styled li::before {
    content: ""; position: absolute;
    left: 0; top: 26px;
    width: 16px; height: 1px;
    background: var(--gold);
  }
  .page-section.dark ul.styled li { border-bottom-color: rgba(201,166,107,0.15); color: rgba(245,241,232,0.85); }

  .page-card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 32px 0;
  }
  .page-card { background: var(--paper); border: 1px solid var(--line); padding: 22px 18px;
    transition: all 0.3s;
  }
  .page-card:hover {
    border-color: var(--gold);
    transform: translateY(-3px);
  }
  .page-card .num { font-family: "Cormorant Garamond", serif; font-style: italic; font-size: 17px; color: var(--gold);
    letter-spacing: 1.8px;
    font-weight: 500;
    margin-bottom: 10px;
  }
  .page-card h4 { font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 14px;
    line-height: 1.6;
    letter-spacing: 0.5px;
  }
  .page-card p { font-size: 14px; line-height: 1.75;
    color: var(--text-mid);
    margin-bottom: 10px;
  }

  .page-quote {
    border-left: 3px solid var(--gold);
    padding: 28px 36px;
    background: rgba(201,166,107,0.05);
    margin: 40px 0;
    font-size: 21px;
    line-height: 2.1;
    color: var(--text);
    font-weight: 400;
  }
  .page-quote.dark {
    background: rgba(201,166,107,0.08);
    color: var(--bone);
    border-left-color: var(--gold);
  }

  .page-toc {
    position: sticky; top: 100px;
    background: var(--paper);
    border: 1px solid var(--line);
    padding: 24px;
    max-width: 280px;
  }
  .page-toc h5 {
    font-family: "Inter", sans-serif;
    font-size: 13.5px; letter-spacing: 2px;
    color: var(--gold-dark);
    text-transform: uppercase;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line);
  }
  .page-toc ul { list-style: none; }
  .page-toc ul li {
    padding: 8px 0;
    font-size: 17px;
  }
  .page-toc ul li a {
    color: var(--text-mid);
    transition: color 0.3s;
  }
  .page-toc ul li a:hover { color: var(--gold-dark); }

  .page-next { background: var(--ink); color: var(--bone); padding: 52px 30px;
    text-align: center;
  }
  .page-next .label { font-family: "Inter", sans-serif; font-size: 11.5px; letter-spacing: 1.6px;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 16px;
  }
  .page-next h3 { font-size: 26px;
    font-weight: 500;
    color: var(--bone);
    margin-bottom: 32px;
    letter-spacing: 1.5px;
  }

  @media (max-width: 1024px) {
    .page-card-grid { grid-template-columns: 1fr; }
  }
  @media (max-width: 768px) {
    .page-hero { padding: 140px 24px 80px; min-height: auto; }
    .page-section { padding: 70px 24px; }
    .page-quote { padding: 22px 24px; }
  }

  /* ==================== EEAT Trust Band ==================== */
  .eeat-band {
    background: var(--bone-2);
    padding: 72px 30px;
    border-top: 1px solid var(--line);
  }
  .eeat-inner {
    max-width: 1080px; margin: 0 auto;
  }
  .eeat-head { margin-bottom: 40px; }
  .eeat-label {
    font-family: "Inter", sans-serif;
    font-size: 12.5px;
    letter-spacing: 2px;
    color: var(--gold-dark);
    text-transform: uppercase;
    margin-bottom: 12px;
  }
  .eeat-title {
    font-size: 28px;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.5;
    letter-spacing: 0.5px;
    max-width: 720px;
  }
  .eeat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 36px;
  }
  .eeat-col {
    background: var(--paper);
    border: 1px solid var(--line);
    border-left: 3px solid var(--gold);
    padding: 24px 26px;
  }
  .eeat-col .eeat-key {
    font-family: "Cormorant Garamond", serif;
    font-style: italic;
    font-size: 21px;
    color: var(--gold-dark);
    letter-spacing: 1.5px;
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line);
  }
  .eeat-col p {
    font-size: 15px;
    line-height: 1.95;
    color: var(--text-mid);
    font-weight: 300;
    margin: 0;
  }
  .eeat-foot {
    padding-top: 28px;
    border-top: 1px solid var(--line);
  }
  .eeat-foot p {
    font-size: 14.5px;
    line-height: 1.95;
    color: var(--text-mid);
    max-width: 880px;
    font-weight: 300;
  }
  @media (max-width: 900px) {
    .eeat-grid { grid-template-columns: 1fr; gap: 16px; }
  }
  @media (max-width: 768px) {
    .eeat-band { padding: 56px 22px; }
    .eeat-title { font-size: 22px; }
    .eeat-col { padding: 20px 22px; }
    .eeat-col p { font-size: 14.5px; }
  }

  /* ==================== Back to Top ==================== */
  .back-to-top {
    position: fixed;
    right: 20px;
    bottom: 82px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--ink);
    color: var(--gold);
    border: 1px solid var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    z-index: 899;
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity .35s ease, transform .35s ease, background .3s, color .3s;
    box-shadow: 0 10px 28px -12px rgba(0,0,0,0.6);
    cursor: pointer;
    text-decoration: none;
  }
  .back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  .back-to-top:hover {
    background: var(--gold);
    color: var(--ink);
  }
  @media (max-width: 768px) {
    .back-to-top {
      right: 14px;
      bottom: 72px;
      width: 40px;
      height: 40px;
      font-size: 13px;
    }
  }

  /* ==================== Footer Legal Meta ==================== */
  .footer-brand .legal-meta {
    margin-top: 22px;
    padding-top: 20px;
    border-top: 1px solid rgba(201, 166, 107, 0.18);
    display: grid;
    gap: 10px;
  }
  .footer-brand .legal-meta > div {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 12px;
    align-items: baseline;
  }
  .footer-brand .legal-meta dt {
    font-family: "Inter", sans-serif;
    font-size: 10px;
    letter-spacing: 1.4px;
    color: var(--gold);
    text-transform: uppercase;
  }
  .footer-brand .legal-meta dd {
    font-size: 13px;
    color: rgba(245, 241, 232, 0.88);
    font-family: "Noto Serif JP", serif;
  }
  @media (max-width: 768px) {
    .footer-brand .legal-meta > div { grid-template-columns: 110px 1fr; }
    .footer-brand .legal-meta dt { font-size: 9.5px; }
    .footer-brand .legal-meta dd { font-size: 12px; }
  }