/* ===== RESET & BASE ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Noto Sans JP', 'Yu Gothic', sans-serif;
      color: #2a1608;
      background: #fff;
      font-size: 16px;
      line-height: 1.6;
    }
    a { text-decoration: none; color: inherit; }
    img { display: block; max-width: 100%; }

    /* ===== HEADER ===== */
    header {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 200;
      background: rgba(255, 255, 255, 0.97);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 40px;
      height: 72px;
      box-shadow: 0 1px 6px rgba(0, 0, 0, 0.08);
    }
    .logo {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
      text-decoration: none;
      cursor: pointer;
    }
    .logo img {
      height: 32px;
      width: auto;
    }
    .logo-sub {
      font-size: 0.52rem;
      letter-spacing: 0.11em;
      color: #aaa;
      text-transform: uppercase;
      line-height: 1;
    }
    nav {
      display: flex;
      align-items: center;
      gap: 36px;
    }
    .nav-item {
      text-align: center;
      cursor: pointer;
    }
    .nav-item span {
      display: block;
      font-size: 0.78rem;
      color: #2a1608;
      font-weight: 500;
    }
    .nav-item small {
      display: block;
      font-size: 0.58rem;
      color: #aaa;
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }
    .nav-item:hover span { color: #8b2030; }
    .btn-apply {
      background: #8b2030;
      color: #fff;
      padding: 10px 24px;
      border-radius: 4px;
      font-size: 0.85rem;
      font-weight: 700;
      letter-spacing: 0.06em;
      transition: background 0.2s;
    }
    .btn-apply:hover { background: #6d1826; }

    /* ===== HERO ===== */
    #top {
      position: relative;
      overflow: hidden;
      margin-top: 72px;
    }
    .hero-slides {
      position: relative;
      width: 100%;
      z-index: 0;
    }
    .hero-slide {
      position: absolute;
      top: 0; left: 0;
      width: 100%;
      opacity: 0;
      transition: opacity 1.2s ease-in-out;
    }
    .hero-slide.active {
      opacity: 1;
      position: relative;
    }
    .hero-slide img {
      width: 100%;
      height: auto;
      display: block;
    }
    .hero-card {
      position: relative;
      z-index: 2;
      background: rgba(255, 255, 255, 0.93);
      border: 1px solid rgba(180, 140, 100, 0.3);
      border-radius: 2px;
      padding: 56px 72px;
      text-align: center;
      max-width: 640px;
      width: 90%;
    }
    .hero-card .en-sub {
      font-size: 0.65rem;
      letter-spacing: 0.22em;
      color: #8b2030;
      text-transform: uppercase;
      margin-bottom: 24px;
    }
    .hero-card h1 {
      font-size: clamp(1.8rem, 3.5vw, 2.8rem);
      font-weight: 800;
      color: #2a1608;
      margin-bottom: 24px;
      line-height: 1.3;
      white-space: nowrap;
    }
    .hero-card .hero-desc {
      font-size: 0.88rem;
      color: #555;
      line-height: 2;
      margin-bottom: 32px;
    }
    .hero-card .hero-desc s { color: #aaa; }
    .hero-card .hero-desc strong { color: #2a1608; }
    .btn-detail {
      display: inline-block;
      background: #2a1608;
      color: #fff;
      padding: 14px 48px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: 2px;
      letter-spacing: 0.06em;
      transition: background 0.2s;
    }
    .btn-detail:hover { background: #4a2814; }
    .hero-dots {
      position: absolute;
      bottom: 28px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 3;
      display: flex;
      gap: 10px;
    }
    .hero-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.45);
      cursor: pointer;
      border: none;
      padding: 0;
      transition: background 0.3s;
    }
    .hero-dot.active { background: #fff; }

    /* ===== SECTION COMMON ===== */
    .section-title {
      text-align: center;
      font-size: 1.65rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: #2a1608;
    }
    .section-en {
      text-align: center;
      font-size: 0.63rem;
      letter-spacing: 0.25em;
      color: #8b2030;
      text-transform: uppercase;
      margin-bottom: 28px;
    }
    .divider {
      width: 40px;
      height: 2px;
      background: #8b2030;
      margin: 0 auto 28px;
    }
    .section-lead {
      text-align: center;
      font-size: 0.93rem;
      line-height: 2;
      color: #555;
      max-width: 780px;
      margin: 0 auto 52px;
    }

    /* ===== コレタツとは？ ===== */
    .about-band {
      background: #3e2a1a url('images/mokume.jpg') center center / cover no-repeat;
      margin-top: 72px;
      padding: 64px 40px;
      text-align: center;
      color: #e8d5be;
    }
    .about-band .sub {
      font-size: 0.65rem;
      letter-spacing: 0.3em;
      color: #c8a060;
      text-transform: uppercase;
      margin-top: 6px;
      margin-bottom: 20px;
    }
    .about-band h2 {
      font-size: clamp(1.2rem, 2.5vw, 1.6rem);
      font-weight: 700;
      line-height: 2;
      max-width: 760px;
      margin: 0 auto 28px;
    }
    .about-band .about-lead {
      font-size: clamp(0.85rem, 1.5vw, 1rem);
      line-height: 2.2;
      max-width: 600px;
      margin: 0 auto;
    }

    /* ===== 社会的背景・課題 ===== */
    #concept {
      padding: 96px 40px;
      background: #faf6f1;
    }
    .three-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      max-width: 1060px;
      margin: 0 auto;
    }
    .card-img-top {
      background: #fff;
      border-radius: 4px;
      overflow: hidden;
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
    }
    .card-img-top img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
    }
    .card-img-top .card-body {
      padding: 20px 20px 28px;
    }
    .card-img-top .card-body h3 {
      font-size: 1rem;
      font-weight: 700;
      color: #2a1608;
      margin-bottom: 10px;
      border-left: 3px solid #8b2030;
      padding-left: 10px;
    }
    #usage .card-img-top {
      background: #faf6f1;
    }
    .card-img-top .card-body p {
      font-size: 0.83rem;
      line-height: 1.9;
      color: #666;
    }

    /* ===== 同時設計 ===== */
    #simultaneous {
      padding: 96px 40px;
      background: #fff;
    }
    .simultaneous-lead {
      text-align: center;
      font-size: 0.93rem;
      line-height: 2;
      color: #555;
      max-width: 680px;
      margin: 0 auto 16px;
    }
    .simultaneous-lead2 {
      text-align: center;
      font-size: 0.93rem;
      line-height: 2.2;
      color: #555;
      max-width: 780px;
      margin: 0 auto 48px;
    }
    .simultaneous-lead2 s { color: #bbb; }
    .feature-card {
      background: #faf6f1;
      border-radius: 4px;
      overflow: hidden;
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
    }
    .feature-card img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
    }
    .feature-card .card-body {
      padding: 20px 20px 28px;
    }
    .feature-card .card-body h3 {
      font-size: 1rem;
      font-weight: 700;
      color: #2a1608;
      margin-bottom: 10px;
      border-left: 3px solid #8b2030;
      padding-left: 10px;
    }
    .feature-card .card-body p {
      font-size: 0.83rem;
      line-height: 1.9;
      color: #666;
      padding-left: 13px;
    }

    /* ===== サービス内容 ===== */
    #service {
      padding: 96px 40px;
      background: #faf6f1;
    }
    .service-scroll-wrap {
      position: relative;
      max-width: 1060px;
      margin: 0 auto 56px;
      overflow-x: auto;
      scrollbar-color: #c8a880 #f0ebe0;
      scrollbar-width: thin;
    }
    .service-scroll-wrap::-webkit-scrollbar {
      height: 6px;
    }
    .service-scroll-wrap::-webkit-scrollbar-track {
      background: #f0ebe0;
      border-radius: 3px;
    }
    .service-scroll-wrap::-webkit-scrollbar-thumb {
      background: #c8a880;
      border-radius: 3px;
    }
    .service-scroll-inner {
      display: flex;
      gap: 20px;
      padding-bottom: 12px;
      width: max-content;
    }
    .service-scroll-card {
      width: 340px;
      height: 240px;
      background: #e8e0d8;
      border-radius: 4px;
      overflow: hidden;
      flex-shrink: 0;
    }
    .service-scroll-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .scroll-hint {
      text-align: center;
      font-size: 0.72rem;
      color: #aaa;
      margin-bottom: 56px;
      letter-spacing: 0.1em;
    }
    .service-package-title {
      text-align: center;
      font-size: 1.1rem;
      font-weight: 700;
      color: #2a1608;
      margin-bottom: 40px;
    }
    .package-icons {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      max-width: 1060px;
      margin: 0 auto;
    }
    .package-icon-card {
      background: #fff;
      border-radius: 4px;
      padding: 28px 12px 20px;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    }
    .package-icon-card .icon {
      font-size: 1.8rem;
      margin-bottom: 12px;
      color: #7a3520;
    }
    .package-icon-card h4 {
      font-size: 0.98rem;
      font-weight: 700;
      color: #2a1608;
      margin-bottom: 8px;
    }
    .package-icon-card p {
      font-size: 0.85rem;
      line-height: 1.8;
      color: #666;
    }

    /* ===== 活用イメージ ===== */
    #usage {
      padding: 96px 40px;
      background: #fff;
    }

    /* ===== 料金プラン ===== */
    #price {
      padding: 96px 40px;
      background: #faf6f1;
    }
    .price-lead {
      text-align: center;
      font-size: 0.93rem;
      color: #555;
      margin-bottom: 48px;
      line-height: 2;
    }
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0;
      max-width: 900px;
      margin: 0 auto;
      border: 2px solid #8b2030;
      border-radius: 4px;
      overflow: hidden;
    }
    .price-card {
      background: #fff;
      border-right: 1px solid #e0d8d0;
    }
    .price-card:last-child { border-right: none; }
    .price-card-header {
      padding: 18px;
      text-align: center;
      color: #fff;
      font-size: 0.95rem;
      font-weight: 700;
      letter-spacing: 0.06em;
    }
    .price-card:nth-child(1) .price-card-header { background: #5a3218; }
    .price-card:nth-child(2) .price-card-header { background: #3d2010; }
    .price-card:nth-child(3) .price-card-header { background: #2a1608; }
    .price-card-body {
      padding: 32px 24px 40px;
      text-align: center;
    }
    .price-unit {
      font-size: 0.72rem;
      color: #999;
      margin-bottom: 4px;
    }
    .price-amount {
      font-size: 2.2rem;
      font-weight: 800;
      color: #2a1608;
      line-height: 1.1;
      margin-bottom: 4px;
    }
    .price-amount span {
      font-size: 0.75rem;
      font-weight: 400;
      color: #888;
    }
    .price-desc {
      font-size: 0.75rem;
      color: #888;
      margin-bottom: 24px;
      padding-bottom: 24px;
      border-bottom: 1px solid #e8e0d8;
    }
    .price-features {
      list-style: none;
      text-align: left;
    }
    .price-features li {
      font-size: 0.78rem;
      color: #444;
      padding: 6px 0;
      display: flex;
      align-items: flex-start;
      gap: 8px;
      line-height: 1.6;
    }
    .price-features li::before {
      content: '';
      display: inline-block;
      width: 16px;
      height: 16px;
      background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238b2030' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'/%3E%3Cpolyline points='22 4 12 14.01 9 11.01'/%3E%3C/svg%3E") center/contain no-repeat;
      flex-shrink: 0;
      margin-top: 2px;
    }

    /* ===== お問い合わせ ===== */
    #contact {
      background: #2a1608;
      padding: 96px 40px;
      text-align: center;
    }
    #contact h2 {
      font-size: 2rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    #contact .contact-desc {
      font-size: 0.88rem;
      color: #c8a880;
      margin-bottom: 48px;
      line-height: 2;
    }
    .contact-btn-group {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-bottom: 20px;
    }
    .btn-contact-form {
      background: transparent;
      color: #fff;
      padding: 16px 48px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 2px;
      letter-spacing: 0.06em;
      transition: background 0.2s, border-color 0.2s;
      cursor: pointer;
      border: 2px solid #fff;
      text-decoration: none;
      display: inline-block;
    }
    .btn-contact-form:hover { background: rgba(255,255,255,0.1); }
    .btn-contact-apply {
      background: #7a3520;
      color: #fff;
      padding: 16px 48px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 2px;
      letter-spacing: 0.06em;
      transition: background 0.2s;
      border: none;
      text-decoration: none;
      display: inline-block;
    }
    .btn-contact-apply:hover { background: #5a2010; }
    .contact-email {
      font-size: 0.82rem;
      color: #c8a880;
      text-decoration: underline;
    }

    /* ===== FOOTER ===== */
    footer {
      background: #1a0c04;
      color: #c8a880;
    }
    .footer-inner {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 48px;
      max-width: 1100px;
      margin: 0 auto;
      padding: 60px 40px 48px;
    }
    .footer-logo-wrap {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 8px;
    }
    .footer-logo-icon {
      width: 34px;
      height: 34px;
      background: #7a3520;
      border-radius: 5px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .footer-logo-icon svg { color: #fff; }
    .footer-logo-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.04em;
    }
    .footer-plan {
      font-size: 0.72rem;
      color: #a07050;
      letter-spacing: 0.06em;
      margin-bottom: 4px;
    }
    .footer-tagline {
      font-size: 0.7rem;
      color: #a07050;
      margin-bottom: 16px;
    }
    .footer-company {
      font-size: 0.78rem;
      color: #a07050;
    }
    .footer-company a {
      color: #c8a880;
      text-decoration: underline;
    }
    .footer-company a:hover { color: #fff; }
    .privacy-link {
      font-size: 0.72rem;
      color: #a07050;
      cursor: pointer;
      text-decoration: underline;
      background: none;
      border: none;
      margin-top: 12px;
      display: inline-block;
    }
    .privacy-link:hover { color: #c8a880; }
    .footer-nav-col h4,
    .footer-contact-col h4 {
      font-size: 0.82rem;
      font-weight: 600;
      color: #fff;
      border-left: 3px solid #8b2030;
      padding-left: 10px;
      margin-bottom: 20px;
    }
    .footer-nav-col ul { list-style: none; }
    .footer-nav-col ul li { margin-bottom: 12px; }
    .footer-nav-col ul li a {
      font-size: 0.78rem;
      color: #c8a880;
      transition: color 0.15s;
    }
    .footer-nav-col ul li a:hover { color: #fff; }
    .footer-contact-col p {
      font-size: 0.78rem;
      color: #c8a880;
      line-height: 2;
      margin-bottom: 20px;
    }
    .footer-sns {
      display: flex;
      gap: 20px;
      align-items: center;
    }
    .footer-sns a {
      font-size: 0.78rem;
      color: #c8a880;
      display: flex;
      align-items: center;
      gap: 6px;
      transition: color 0.15s;
    }
    .footer-sns a:hover { color: #fff; }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 18px 40px;
      text-align: center;
      font-size: 0.72rem;
      color: #a07050;
    }

    /* ===== PRIVACY MODAL ===== */
    .modal-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.65);
      z-index: 1000;
      justify-content: center;
      align-items: center;
      padding: 20px;
    }
    .modal-overlay.active { display: flex; }
    .modal-box {
      background: #fff;
      border-radius: 4px;
      padding: 48px;
      max-width: 640px;
      width: 100%;
      max-height: 80vh;
      overflow-y: auto;
      position: relative;
    }
    .modal-box h2 {
      font-size: 1.2rem;
      font-weight: 700;
      color: #2a1608;
      margin-bottom: 24px;
      border-bottom: 2px solid #f0ebe0;
      padding-bottom: 16px;
    }
    .modal-box h3 {
      font-size: 0.9rem;
      font-weight: 700;
      color: #2a1608;
      margin: 24px 0 8px;
    }
    .modal-box p {
      font-size: 0.80rem;
      line-height: 2;
      color: #555;
    }
    .modal-close {
      position: absolute;
      top: 14px;
      right: 18px;
      font-size: 1.4rem;
      cursor: pointer;
      color: #aaa;
      background: none;
      border: none;
      line-height: 1;
      padding: 4px;
    }
    .modal-close:hover { color: #555; }

    /* ===== FLOATING APPLY BUTTON ===== */
    .float-apply {
      position: fixed;
      bottom: 32px;
      right: 32px;
      z-index: 300;
      background: #8b2030;
      color: #fff;
      padding: 14px 24px;
      border-radius: 4px;
      font-size: 0.88rem;
      font-weight: 700;
      letter-spacing: 0.06em;
      box-shadow: 0 4px 16px rgba(139, 32, 48, 0.45);
      transition: background 0.2s, transform 0.2s, opacity 0.3s;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 8px;
      opacity: 1;
    }
    .float-apply:hover {
      background: #6d1826;
      transform: translateY(-2px);
    }
    .float-apply.hidden {
      opacity: 0;
      pointer-events: none;
    }
    @media (max-width: 768px) {
      .float-apply {
        bottom: 20px;
        right: 16px;
        padding: 12px 18px;
        font-size: 0.82rem;
      }
    }

    /* ===== HAMBURGER ===== */
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: none;
      border: none;
      padding: 6px 4px;
      z-index: 201;
    }
    .hamburger span {
      display: block;
      width: 24px;
      height: 2px;
      background: #2a1608;
      border-radius: 2px;
      transition: transform 0.3s, opacity 0.3s;
    }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    /* ===== TABLET (〜1024px) ===== */
    @media (max-width: 1024px) {
      header { padding: 0 24px; }
      nav { gap: 20px; }
      section { padding: 64px 24px; }
      .about-band { padding: 48px 24px; }
      #concept, #simultaneous, #usage { padding: 80px 24px; }
      #service { padding: 80px 24px; }
      #price { padding: 80px 24px; }
      .three-grid { grid-template-columns: repeat(2, 1fr); }
      .package-icons { grid-template-columns: repeat(3, 1fr); }
      .price-grid {
        grid-template-columns: 1fr;
        max-width: 440px;
        border: 2px solid #8b2030;
      }
      .price-card { border-right: none; border-bottom: 1px solid #e0d8d0; }
      .price-card:last-child { border-bottom: none; }
      .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
    }

    /* ===== MOBILE (〜768px) ===== */
    @media (max-width: 768px) {
      header { padding: 0 20px; height: 60px; }
      .logo img { height: 28px; }

      .hamburger { display: flex; }

      nav {
        display: none;
        position: fixed;
        top: 60px; left: 0; right: 0; bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 28px;
        z-index: 199;
        overflow-y: auto;
      }
      nav.open { display: flex; }
      .nav-item span { font-size: 1.1rem; }
      .nav-item small { font-size: 0.72rem; }
      .btn-apply { font-size: 0.95rem; padding: 12px 28px; }

      #top { margin-top: 60px; }

      section { padding: 56px 20px; }
      .about-band { padding: 40px 20px; }
      #concept, #simultaneous, #usage { padding: 56px 20px; }
      #service, #price { padding: 56px 20px; }

      .three-grid { grid-template-columns: 1fr; }
      .package-icons { grid-template-columns: repeat(2, 1fr); }

      .price-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
        border-radius: 4px;
        border: 2px solid #8b2030;
      }
      .price-card { border-right: none; border-bottom: 1px solid #e0d8d0; }
      .price-card:last-child { border-bottom: none; }

      #contact { padding: 64px 20px; }
      #contact h2 { font-size: 1.5rem; }

      .footer-inner { grid-template-columns: 1fr; gap: 28px; padding: 40px 20px 28px; }
      .footer-bottom { padding: 16px 20px; }
    }