:root {
    --green-deep: #017BC4;
    --green-mid: #017BC4;
    --green-light: #017BC4;
    --green-pale: #f6f6f6;
    --green-mist: #f6f6f6;
    --blue-light: #017BC4;
    --cream: #faf8f4;
    --warm-white: #ffffff;
    --text-dark: #1c2b20;
    --text-mid: #3d5244;
    --text-muted: #7a9083;
    --border: #c8ddd2;
    --accent: #c5860a;
  }
 
  * { margin: 0; padding: 0; box-sizing: border-box; }
 
  body {
    font-family: "M PLUS 1", sans-serif;
    font-weight: 300;
    background: var(--warm-white);
    color: var(--text-dark);
    line-height: 1.8;
  }
 .flex {
  display: flex;
 }
  /* ===== HEADER ===== */
  .site-header {
    background: var(--warm-white);
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    flex-basis: 20%;
  }
  .site-header__inner {
    max-width: 1120px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
  }
  .site-header__logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
  }
  .site-header__logo-sub {
    font-size: 9px;
    letter-spacing: .12em;
    color: var(--text-muted);
    font-weight: 300;
    text-transform: uppercase;
  }
  .site-header__logo-main {
    font-size: 14px;
    font-weight: 500;
    color: var(--green-deep);
    letter-spacing: .04em;
  }
  .site-nav { display: flex; gap: 1.8rem; list-style: none; }
  .site-nav a {
    font-size: 11px;
    letter-spacing: .1em;
    text-decoration: none;
    color: var(--text-mid);
    text-transform: uppercase;
    font-weight: 400;
    transition: color .2s;
  }
  .site-nav a:hover { color: var(--green-mid); }
  .site-nav a.active { color: var(--green-mid); border-bottom: 1.5px solid var(--green-mid); padding-bottom: 2px; }
 
  .hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
  }
  .hamburger span {
    display: block;
    width: 24px;
    height: 1.5px;
    background: var(--green-deep);
    transition: all .3s;
  }
 
  /* ===== EYECATCH ===== */
  main {
    flex-basis: 80%;
  }
  .eyecatch {
    position: relative;
    height: 520px;
    overflow: hidden;
    background: var(--green-deep);
  }
  .eyecatch__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: .55;
    display: block;
  }
  .eyecatch__placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #579ffc 0%, #1d80e1 50%, #003fc2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    inset: 0;
  }
  .eyecatch__placeholder-icon {
    opacity: .12;
    font-size: 180px;
    line-height: 1;
    font-family: serif;
    color: #fff;
    letter-spacing: -.05em;
  }
  .eyecatch__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgb(0 66 255 / 72%) 0%, rgb(87 96 152 / 30%) 60%, transparent 100%);
    display: flex;
    align-items: center;
  }
  .eyecatch__content {
    max-width: 1120px;
    margin: 3rem auto 0;
    padding: 0 2rem;
    width: 100%;
  }
  .eyecatch__en {
    font-size: 11px;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--dark);
    font-family: "M PLUS 1", sans-serif;
    margin-bottom: .6rem;
    display: block;
    text-align: center;
  }
  .eyecatch__title {
    font-family: "M PLUS 1", sans-serif;
    font-size: 30px;
    font-weight: 400;
    color: var(--dark);
    line-height: 1.4;
    letter-spacing: .06em;
    margin-bottom: 1rem;
    text-align: center;
  }
  .eyecatch__lead {
    font-size: clamp(13px, 1.4vw, 15px);
    color: rgba(255,255,255,.82);
    max-width: 540px;
    line-height: 1.9;
    font-weight: 300;
  }
 
  /* ===== BREADCRUMB ===== */
  .breadcrumb {
    background: var(--green-mist);
    border-bottom: 1px solid var(--border);
    padding: .7rem 2rem;
  }
  .breadcrumb__inner {
    max-width: 1120px;
    margin: 0 auto;
    display: flex;
    gap: .5rem;
    align-items: center;
    font-size: 11px;
    color: var(--text-muted);
  }
  .breadcrumb a { color: var(--text-muted); text-decoration: none; }
  .breadcrumb a:hover { color: var(--green-mid); }
  .breadcrumb__sep { font-size: 9px; opacity: .5; }
  .breadcrumb__current { color: var(--green-mid); font-weight: 400; }
 
  /* ===== LAYOUT ===== */
  .page-wrap { max-width: 1120px; margin: 0 auto; padding: 0 2rem; }
 
  /* ===== INTRO ===== */
  .intro {
    padding: 5rem 0 4rem;
    background: var(--warm-white);
  }
  .intro__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }
  .intro__text {}
  .section-label {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: 10px;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--green-mid);
    font-weight: 400;
    margin-bottom: 1rem;
  }
  .section-label::before {
    content: '';
    display: block;
    width: 24px;
    height: 1px;
    background: var(--green-mid);
  }
  .intro__heading {
    font-family: 'Noto Serif JP', serif;
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 300;
    color: var(--green-deep);
    line-height: 1.5;
    letter-spacing: .04em;
    margin-bottom: 1.5rem;
  }
  .intro__body {
    font-size: 14px;
    line-height: 2;
    color: var(--text-mid);
    margin-bottom: 2rem;
  }
  .intro__image {
    position: relative;
  }
  .intro__image-wrap {
    border-radius: 4px;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: var(--green-pale);
    position: relative;
  }
  .intro__image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
  .photo-placeholder {
    width: 100%;
    height: 100%;
    background: var(--green-pale);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .5rem;
  }
  .photo-placeholder__icon {
    width: 48px;
    height: 48px;
    opacity: .3;
  }
  .photo-placeholder__text {
    font-size: 11px;
    color: var(--green-mid);
    opacity: .5;
    letter-spacing: .1em;
  }
  .intro__image-deco {
    position: absolute;
    bottom: -16px;
    right: -16px;
    width: 80px;
    height: 80px;
    border: 2px solid var(--green-light);
    border-radius: 2px;
    opacity: .25;
    z-index: -1;
  }
 
  /* ===== SECTION BASE ===== */
  .section {
    padding: 5rem 0;
  }
  .section--alt {
    background: var(--green-mist);
  }
  .section__header {
    text-align: center;
    margin-bottom: 3.5rem;
  }
  .section__heading {
    font-family: 'Noto Serif JP', serif;
    font-size: clamp(1.4rem, 2.2vw, 1.85rem);
    font-weight: 300;
    color: var(--green-deep);
    letter-spacing: .06em;
    line-height: 1.5;
    margin-bottom: .8rem;
  }
  .section__heading-en {
    font-size: 10px;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--text-muted);
    display: block;
    margin-top: .4rem;
  }
  .section__line {
    width: 36px;
    height: 1.5px;
    background: var(--green-mid);
    margin: 1rem auto 0;
  }
 
  /* ===== SERVICES ===== */
  .services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
    margin-bottom: 2rem;
  }
  .service-card {
    background: var(--warm-white);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1.5rem 1.2rem;
    position: relative;
    overflow: hidden;
    transition: box-shadow .25s, border-color .25s;
  }
  .service-card:hover {
    border-color: var(--green-light);
    box-shadow: 0 4px 20px rgba(26,74,46,.08);
  }
  .service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--green-mid);
  }
  .service-card__icon {
    width: 36px;
    height: 36px;
    margin-bottom: 1rem;
    color: var(--green-mid);
  }
  .service-card__title {
    font-size: 13px;
    font-weight: 500;
    color: var(--green-deep);
    margin-bottom: .5rem;
    letter-spacing: .03em;
    line-height: 1.5;
  }
  .service-card__body {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.8;
  }
 
  /* ===== FLOW ===== */
  .flow-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
  }
  .flow-grid::before {
    content: '';
    position: absolute;
    top: 40px;
    left: calc(12.5% + 20px);
    right: calc(12.5% + 20px);
    height: 1px;
    background: var(--border);
    z-index: 0;
  }
  .flow-step {
    text-align: center;
    padding: 0 1rem;
    position: relative;
    z-index: 1;
  }
  .flow-step__num {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--green-mid);
    color: #fff;
    font-family: 'Noto Serif JP', serif;
    font-size: 20px;
    font-weight: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    position: relative;
    z-index: 2;
  }
  .flow-step__title {
    font-size: 13px;
    font-weight: 500;
    color: var(--green-deep);
    margin-bottom: .6rem;
    line-height: 1.5;
    letter-spacing: .03em;
  }
  .flow-step__body {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.8;
  }
 
  /* ===== CASES ===== */
  .cases-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .case-card {
    background: var(--warm-white);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: box-shadow .25s;
  }
  .case-card:hover { box-shadow: 0 6px 24px rgba(26,74,46,.1); }
  .case-card__img {
    aspect-ratio: 16/9;
    background: var(--green-pale);
    overflow: hidden;
  }
  .case-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
  .case-card__body { padding: 1.3rem 1.2rem 1.5rem; }
  .case-card__num {
    display: inline-block;
    font-size: 10px;
    letter-spacing: .15em;
    color: var(--green-mid);
    background: var(--green-mist);
    padding: .25rem .7rem;
    border-radius: 2px;
    margin-bottom: .8rem;
    font-weight: 400;
  }
  .case-card__title {
    font-size: 14px;
    font-weight: 500;
    color: var(--green-deep);
    margin-bottom: .6rem;
    line-height: 1.55;
    letter-spacing: .02em;
  }
  .case-card__text {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.9;
  }
 
  /* ===== FAQ ===== */
  .faq-list { max-width: 720px; margin: 0 auto; }
  .faq-item {
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0;
  }
  .faq-item__q {
    display: flex;
    gap: .8rem;
    align-items: flex-start;
    margin-bottom: .8rem;
  }
  .faq-item__badge {
    width: 26px;
    height: 26px;
    min-width: 26px;
    border-radius: 50%;
    background: var(--green-mid);
    color: #fff;
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
  }
  .faq-item__badge--a {
    background: var(--green-pale);
    color: var(--green-mid);
    border: 1px solid var(--border);
  }
  .faq-item__text {
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.7;
    font-weight: 400;
  }
  .faq-item__ans {
    display: flex;
    gap: .8rem;
    align-items: flex-start;
  }
  .faq-item__ans-text {
    font-size: 13px;
    color: var(--text-mid);
    line-height: 1.9;
  }
  .faq-item__ans-text span {
    color: var(--green-mid);
    font-weight: 500;
  }
 
  /* ===== CONTACT ===== */
  .contact-section {
    background: #002164;
    padding: 5rem 0;
  }
  .contact-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
  }
  .contact-label {
    font-size: 10px;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: rgba(255,255,255,.5);
    display: block;
    margin-bottom: .8rem;
  }
  .contact-heading {
    font-family: 'Noto Serif JP', serif;
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    font-weight: 300;
    color: #fff;
    letter-spacing: .06em;
    line-height: 1.5;
    margin-bottom: 1rem;
  }
  .contact-lead {
    font-size: 13px;
    color: rgba(255,255,255,.65);
    line-height: 2;
    margin-bottom: 2.5rem;
  }
  .contact-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
  }
  .contact-box {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 4px;
    padding: 1.8rem 1.5rem;
  }
  .contact-box__label {
    font-size: 10px;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: rgba(255,255,255,.45);
    margin-bottom: .6rem;
    display: block;
  }
  .contact-box__value {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.5rem;
    font-weight: 300;
    color: #fff;
    letter-spacing: .05em;
    display: block;
    margin-bottom: .3rem;
  }
  .contact-box__note {
    font-size: 11px;
    color: rgba(255,255,255,.45);
  }
  .contact-address {
    font-size: 12px;
    color: rgba(255,255,255,.5);
    line-height: 1.9;
  }
  .privacy-note {
    margin-top: 2.5rem;
    font-size: 11px;
    color: rgba(255,255,255,.35);
    line-height: 1.9;
  }
 
  /* ===== FOOTER ===== */
  .site-footer {
    background: var(--text-dark);
    padding: 2.5rem 2rem;
    text-align: center;
  }
  .site-footer__text {
    font-size: 11px;
    color: rgba(255,255,255,.3);
    letter-spacing: .08em;
  }
 
  /* ===== MOBILE ===== */
  @media (max-width: 768px) {
    .site-nav { display: none; }
    .hamburger { display: flex; }
 
    .eyecatch { height: 380px; }
    .eyecatch__overlay { background: rgba(20,50,30,.6); }
 
    .intro__inner {
      grid-template-columns: 1fr;
      gap: 2rem;
    }
    .intro__image { order: -1; }
 
    .services-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: .9rem;
    }
 
    .flow-grid {
      grid-template-columns: 1fr 1fr;
      gap: 2rem 1rem;
    }
    .flow-grid::before { display: none; }
 
    .cases-layout {
      grid-template-columns: 1fr;
      gap: 1.2rem;
    }
 
    .contact-cols {
      grid-template-columns: 1fr;
    }
 
    .section { padding: 3.5rem 0; }
    .page-wrap { padding: 0 1.2rem; }
    .eyecatch__content { padding: 0 1.2rem; }
    .contact-inner { padding: 0 1.2rem; }
    .breadcrumb { padding: .7rem 1.2rem; }
    .site-header { padding: 0 1.2rem; }
  }
 
  @media (max-width: 480px) {
    .services-grid {
      grid-template-columns: 1fr;
    }
    .flow-grid {
      grid-template-columns: 1fr;
    }
  }
 
  /* ===== ANIMATION ===== */
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  .eyecatch__en,
  .eyecatch__title,
  .eyecatch__lead {
    animation: fadeUp .8s ease both;
  }
  .eyecatch__en   { animation-delay: .15s; }
  .eyecatch__title { animation-delay: .3s; }
  .eyecatch__lead  { animation-delay: .45s; }