/* ===== トップページ ===== */
/* =============================================
       VARIABLES & RESET
       ============================================= */
    :root {
      --navy:       #1c2e4a;
      --navy-dark:  #0d1a2e;
      --navy-mid:   #243a5e;
      --gold:       #b8966a;
      --gold-light: #d4b48a;
      --white:      #ffffff;
      --off-white:  #f7f8fb;
      --gray-100:   #f0f2f6;
      --gray-200:   #e4e8ef;
      --gray-400:   #9aa5b5;
      --gray-600:   #5a6878;
      --gray-800:   #2a3848;
      --text:       #1a2536;
      --sans:       'Noto Sans JP', sans-serif;
      --ease:       cubic-bezier(.4, 0, .2, 1);
    }

    *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: var(--sans);
      color: var(--text);
      background: var(--white);
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }
    img { display: block; max-width: 100%; }
    a { text-decoration: none; color: inherit; }
    ul { list-style: none; }

    /* =============================================
       UTILITIES
       ============================================= */
    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 60px;
    }

    .sec {
      padding: 100px 0;
    }
    .sec--bg   { background: var(--off-white); }
    .sec--dark { background: var(--navy-dark); }

    /* Label */
    .sec-label {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .sec-label__en {
      font-size: 10px;
      font-weight: 700;
      letter-spacing: 3px;
      color: var(--gold);
      text-transform: uppercase;
    }
    .sec-label__line {
      width: 28px;
      height: 1.5px;
      background: var(--gold);
      flex-shrink: 0;
    }

    /* Heading */
    .sec-h2 {
      font-size: clamp(26px, 3.2vw, 40px);
      font-weight: 900;
      color: var(--navy);
      line-height: 1.35;
      letter-spacing: .02em;
    }
    .sec-h2--white { color: var(--white); }
    .sec-h2-sub {
      font-size: 11px;
      letter-spacing: 2.5px;
      color: var(--gray-400);
      text-transform: uppercase;
      margin-top: 6px;
    }

    /* Divider */
    .divider {
      width: 36px;
      height: 3px;
      background: var(--gold);
      margin: 18px 0 28px;
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 14px 34px;
      font-family: var(--sans);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .06em;
      cursor: pointer;
      border: 2px solid transparent;
      transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
    }
    .btn::after { content: '→'; font-size: 14px; }
    .btn--navy {
      background: var(--navy);
      color: var(--white);
      border-color: var(--navy);
    }
    .btn--navy:hover {
      background: var(--navy-mid);
      border-color: var(--navy-mid);
    }
    .btn--outline {
      background: transparent;
      color: var(--navy);
      border-color: var(--navy);
    }
    .btn--outline:hover {
      background: var(--navy);
      color: var(--white);
    }
    .btn--white {
      background: var(--white);
      color: var(--navy);
      border-color: var(--white);
    }
    .btn--white:hover {
      background: var(--gold);
      color: var(--white);
      border-color: var(--gold);
    }

    /* =============================================
       HEADER
       ============================================= */
    .header {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 200;
      height: 80px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 60px;
      background: rgba(255,255,255,.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(28,46,74,.07);
    }

    .header__logo {
      display: flex;
      flex-direction: column;
      gap: 2px;
      line-height: 1;
    }
    .logo__img {
      height: 44px;
      width: auto;
      display: block;
    }

    .header__nav {
      display: flex;
      align-items: center;
      gap: 38px;
    }
    .nav__link {
      font-size: 13px;
      font-weight: 500;
      color: var(--gray-800);
      letter-spacing: .04em;
      position: relative;
      padding-bottom: 4px;
      transition: color .2s;
    }
    .nav__link::after {
      content: '';
      position: absolute;
      bottom: 0; left: 0;
      width: 0; height: 1.5px;
      background: var(--navy);
      transition: width .3s var(--ease);
    }
    .nav__link:hover { color: var(--navy); }
    .nav__link:hover::after { width: 100%; }

    .nav__cta {
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .06em;
      color: var(--white);
      background: var(--navy);
      padding: 11px 26px;
      transition: background .2s;
    }
    .nav__cta:hover { background: var(--navy-mid); }

    .header__hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
    }
    .header__hamburger span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--navy);
    }

    /* =============================================
       FV
       ============================================= */
    .fv {
      position: relative;
      height: 100vh;
      min-height: 620px;
      overflow: hidden;
    }

    .fv__slide {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      opacity: 0;
      transition: opacity 1.6s ease-in-out;
      /* 切り替え時のちらつき防止（GPUで合成させる） */
      will-change: opacity, transform;
      backface-visibility: hidden;
      transform: translateZ(0);
    }
    .fv__slide.is-active {
      opacity: 1;
      animation: fvKenBurns 9s ease-out forwards;
    }
    @keyframes fvKenBurns {
      from { transform: scale(1.06); }
      to   { transform: scale(1.00); }
    }
    .fv__slide:nth-child(1) {
      background-image: url('../img/AdobeStock_547101373.jpeg');
      background-position: center 40%;
    }
    .fv__slide:nth-child(2) {
      background-image: url('../img/AdobeStock_79531274.jpeg');
      background-position: center 40%;
    }
    .fv__slide:nth-child(3) {
      background-image: url('../img/AdobeStock_312466226.jpeg');
      background-position: center 50%;
    }
    .fv__slide:nth-child(4) {
      background-image: url('../img/AdobeStock_82379943.jpeg');
      background-position: center 30%;
    }

    .fv__overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(
        108deg,
        rgba(8,16,30,.76) 0%,
        rgba(8,16,30,.50) 48%,
        rgba(8,16,30,.18) 100%
      );
    }

    .fv__content {
      position: relative;
      z-index: 2;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 80px 60px 0;
      max-width: 900px;
    }

    .fv__eyebrow {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 30px;
      opacity: 0;
      animation: fadeUp .8s .3s var(--ease) forwards;
    }
    .fv__eyebrow-line {
      width: 32px;
      height: 1.5px;
      background: var(--gold);
    }
    .fv__eyebrow-text {
      font-size: 11px;
      letter-spacing: 3.5px;
      color: rgba(255,255,255,.72);
      text-transform: uppercase;
    }

    .fv__title {
      font-size: clamp(44px, 6vw, 80px);
      font-weight: 900;
      color: var(--white);
      line-height: 1.22;
      letter-spacing: .03em;
      margin-bottom: 28px;
      opacity: 0;
      animation: fadeUp .9s .5s var(--ease) forwards;
    }

    .fv__sub {
      font-size: 15px;
      font-weight: 300;
      color: rgba(255,255,255,.84);
      line-height: 2.1;
      opacity: 0;
      animation: fadeUp .9s .7s var(--ease) forwards;
    }

    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(24px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    .fv__scroll {
      position: absolute;
      bottom: 42px;
      left: 60px;
      z-index: 2;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
    }
    .fv__scroll-text {
      font-size: 9px;
      letter-spacing: 3px;
      color: rgba(255,255,255,.45);
      text-transform: uppercase;
      writing-mode: vertical-rl;
    }
    .fv__scroll-line {
      width: 1px;
      height: 60px;
      background: linear-gradient(to bottom, transparent, rgba(255,255,255,.4));
      animation: scrollPulse 2.4s ease-in-out infinite;
    }
    @keyframes scrollPulse {
      0%,100% { opacity: .3; transform: scaleY(.6); transform-origin: bottom; }
      50%      { opacity: 1;  transform: scaleY(1);  transform-origin: bottom; }
    }

    /* =============================================
       ABOUT
       ============================================= */
    .about__grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
    }

    .about__body {
      font-size: 14px;
      color: var(--gray-600);
      line-height: 2.1;
      margin-bottom: 36px;
    }

    .about__img-wrap {
      position: relative;
    }
    .about__img-main {
      width: 100%;
      height: 460px;
      object-fit: cover;
    }
    .about__img-accent {
      position: absolute;
      bottom: -28px;
      right: -28px;
      width: 200px;
      height: 140px;
      object-fit: cover;
      border: 7px solid var(--white);
      box-shadow: 0 8px 30px rgba(0,0,0,.14);
    }

    /* =============================================
       BUSINESS
       ============================================= */
    .business__grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 3px;
      margin-top: 52px;
    }

    .biz__card {
      position: relative;
      overflow: hidden;
      cursor: pointer;
    }
    .biz__card-img {
      display: block;
      width: 100%;
      height: 360px;
      object-fit: cover;
      transition: transform .7s var(--ease);
    }
    .biz__card:hover .biz__card-img {
      transform: scale(1.06);
    }
    .biz__card-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(
        to top,
        rgba(8,16,30,.88) 0%,
        rgba(8,16,30,.30) 55%,
        rgba(8,16,30,.10) 100%
      );
      transition: background .35s;
    }
    .biz__card:hover .biz__card-overlay {
      background: linear-gradient(
        to top,
        rgba(8,16,30,.92) 0%,
        rgba(8,16,30,.50) 60%,
        rgba(8,16,30,.15) 100%
      );
    }
    .biz__card-content {
      position: absolute;
      bottom: 0; left: 0; right: 0;
      padding: 32px;
      transform: translateY(0);
    }
    .biz__num {
      font-size: 10px;
      font-weight: 700;
      letter-spacing: 2.5px;
      color: var(--gold);
      margin-bottom: 10px;
    }
    .biz__title {
      font-size: 21px;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .biz__desc {
      font-size: 12px;
      color: rgba(255,255,255,.72);
      line-height: 1.9;
      margin-bottom: 18px;
    }
    .biz__link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 1.5px;
      color: var(--gold-light);
      transition: gap .2s;
    }
    .biz__link::after { content: '→'; }
    .biz__card:hover .biz__link { gap: 14px; }

    /* =============================================
       PROPERTY
       ============================================= */
    .property-banner {
      position: relative;
      height: 420px;
      overflow: hidden;
      margin-top: 52px;
    }
    .property-banner__bg {
      position: absolute;
      inset: 0;
      background-image: url('../img/AdobeStock_303671091.jpeg');
      background-size: cover;
      background-position: center;
      transition: transform .8s var(--ease);
    }
    .property-banner:hover .property-banner__bg {
      transform: scale(1.03);
    }
    .property-banner__overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(
        90deg,
        rgba(8,16,30,.82) 0%,
        rgba(8,16,30,.50) 55%,
        rgba(8,16,30,.18) 100%
      );
    }
    .property-banner__content {
      position: relative;
      z-index: 2;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 0 80px;
      max-width: 680px;
    }
    .property-banner__lead {
      font-size: 13px;
      font-weight: 300;
      color: rgba(255,255,255,.75);
      line-height: 2;
      margin-bottom: 36px;
    }
    .property-banner__link {
      display: inline-flex;
      align-items: center;
      gap: 16px;
      color: var(--white);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 3px;
      text-transform: uppercase;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--gold);
      transition: gap .3s var(--ease), color .2s, border-color .2s;
    }
    .property-banner__link::after {
      content: '';
      display: block;
      width: 32px;
      height: 1px;
      background: var(--gold);
      transition: width .3s var(--ease);
    }
    .property-banner__link:hover {
      color: var(--gold-light);
      gap: 22px;
    }
    .property-banner__link:hover::after {
      width: 44px;
    }

    /* =============================================
       RECRUIT
       ============================================= */
    .recruit {
      position: relative;
      overflow: hidden;
    }
    .recruit__bg {
      position: absolute;
      inset: 0;
      background-image: url('../img/AdobeStock_443329335.jpeg');
      background-size: cover;
      background-position: center 30%;
    }
    .recruit__overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(
        100deg,
        rgba(8,16,30,.88) 0%,
        rgba(8,16,30,.64) 50%,
        rgba(8,16,30,.30) 100%
      );
    }
    .recruit__content {
      position: relative;
      z-index: 2;
      padding: 110px 0;
      max-width: 580px;
    }
    .recruit__body {
      font-size: 14px;
      font-weight: 300;
      color: rgba(255,255,255,.78);
      line-height: 2.1;
      margin-bottom: 36px;
    }

    /* =============================================
       NEWS
       ============================================= */
    .news__head {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 36px;
    }
    .news__more {
      font-size: 12px;
      font-weight: 500;
      color: var(--navy);
      letter-spacing: 1px;
      border-bottom: 1px solid var(--navy);
      padding-bottom: 2px;
      transition: color .2s, border-color .2s;
    }
    .news__more:hover { color: var(--gold); border-color: var(--gold); }

    .news__list { border-top: 1px solid var(--gray-200); }
    .news__item {
      display: flex;
      align-items: center;
      gap: 22px;
      padding: 22px 0;
      border-bottom: 1px solid var(--gray-200);
      cursor: pointer;
      transition: padding-left .2s var(--ease);
    }
    .news__item:hover { padding-left: 10px; }
    .news__date {
      font-size: 13px;
      color: var(--gray-400);
      white-space: nowrap;
      min-width: 92px;
    }
    .news__cat {
      font-size: 10px;
      font-weight: 700;
      letter-spacing: 1.5px;
      color: var(--white);
      background: var(--navy);
      padding: 4px 11px;
      white-space: nowrap;
    }
    .news__title {
      font-size: 14px;
      color: var(--gray-800);
      line-height: 1.7;
    }

    /* =============================================
       CONTACT CTA
       ============================================= */

    /* =============================================
       FOOTER
       ============================================= */
    .footer {
      background: var(--navy-dark);
      padding: 72px 0 28px;
    }
    .footer__inner {
      display: flex;
      justify-content: space-between;
      gap: 60px;
      flex-wrap: wrap;
      margin-bottom: 56px;
    }
    .footer__logo-img {
      height: 40px;
      width: auto;
      display: block;
      margin-bottom: 22px;
      filter: brightness(0) invert(1);
    }
    .footer__address {
      font-size: 12px;
      color: rgba(255,255,255,.45);
      line-height: 2.2;
    }
    .footer__nav-cols {
      display: flex;
      gap: 60px;
      flex-wrap: wrap;
    }
    .footer__nav-title {
      font-size: 10px;
      letter-spacing: 2.5px;
      color: rgba(255,255,255,.28);
      text-transform: uppercase;
      margin-bottom: 16px;
    }
    .footer__nav-list li { margin-bottom: 10px; }
    .footer__nav-list a {
      font-size: 12px;
      color: rgba(255,255,255,.55);
      transition: color .2s;
    }
    .footer__nav-list a:hover { color: var(--gold-light); }

    .footer__copy {
      border-top: 1px solid rgba(255,255,255,.07);
      padding-top: 24px;
      font-size: 11px;
      color: rgba(255,255,255,.25);
      text-align: center;
    }

    /* =============================================
       RESPONSIVE
       ============================================= */
    @media (max-width: 1024px) {
      .container { padding: 0 40px; }
      .header    { padding: 0 40px; }
      .fv__content { padding: 80px 40px 0; }
    }

    @media (max-width: 768px) {
      .header {
        padding: 0 20px;
        height: 64px;
      }
      .header__nav { display: none; }
      .header__hamburger { display: flex; }

      .container { padding: 0 20px; }
      .sec { padding: 70px 0; }

      .fv__content  { padding: 64px 20px 0; }
      .fv__scroll   { left: 20px; bottom: 30px; }
      .fv__title    { font-size: clamp(38px, 10vw, 52px); }

      .about__grid,
      .property__grid { grid-template-columns: 1fr; }
      .about__img-main  { height: 280px; }
      .about__img-accent { display: none; }

      .business__grid { grid-template-columns: 1fr; gap: 2px; }
      .biz__card-img  { height: 280px; }

      .prop__img-side { min-height: 260px; }

      .recruit__content { padding: 80px 0; max-width: 100%; }
      .recruit__content .sec-h2--white { font-size: clamp(26px,7vw,38px); }

      .footer { padding: 56px 0 24px; }
      .footer__inner { flex-direction: column; gap: 40px; }
      .footer__nav-cols { gap: 36px; }

      .news__item { flex-wrap: wrap; gap: 10px; }
    }

    /* ── ハンバーガーメニュー開閉 ── */
    .header__hamburger span{transition:transform .3s ease,opacity .3s ease;}
    .header__hamburger.is-open span:nth-child(1){transform:rotate(45deg) translate(5px,5px);}
    .header__hamburger.is-open span:nth-child(2){opacity:0;transform:translateX(-6px);}
    .header__hamburger.is-open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px);}
    @media(max-width:768px){
      .header__nav.is-open{
        display:flex;flex-direction:column;gap:0;
        position:fixed;top:64px;left:0;right:0;
        background:rgba(255,255,255,.98);backdrop-filter:blur(16px);
        padding:8px 0 28px;z-index:199;
        border-top:1px solid rgba(28,46,74,.07);
        box-shadow:0 8px 24px rgba(0,0,0,.08);
      }
      .header__nav.is-open .nav__link{
        display:block;padding:16px 28px;font-size:15px;font-weight:500;
        color:var(--navy);border-bottom:1px solid var(--gray-200);
        letter-spacing:.04em;
      }
      .header__nav.is-open .nav__link::after{display:none;}
      .header__nav.is-open .nav__cta{
        display:block;margin:20px 28px 0;text-align:center;
        padding:14px;font-size:13px;font-weight:700;
        background:var(--navy);color:var(--white);letter-spacing:.06em;
      }
    }