:root {
      --navy: #07182e;
      --navy-2: #0c2341;
      --gold: #caa618;
      --gold-2: #e2c45a;
      --cream: #f6f4ef;
      --white: #fff;
      --text: #211e27;
      --muted: #686868;
      --border: rgba(202, 166, 24, .34);
      --shadow: 0 18px 50px rgba(7, 24, 46, .16);
      /* LPの文字サイズはここを変更すれば全体へ反映できます。 */
      --lp-hero-title-size: clamp(36px, 4.2vw, 60px);
      --lp-hero-sublead-size: clamp(19px, 2.1vw, 27px);
      --lp-hero-body-size: clamp(15px, 1.45vw, 18px);
      --lp-section-title-size: clamp(30px, 4vw, 46px);
      --lp-trust-icon-size: 36px;
      --serif: "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", serif;
      --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body { margin: 0; color: var(--text); background: #fff; font-family: var(--sans); font-size: 16px; line-height: 1.8; }
    img { display: block; width: 100%; height: auto; }
    a { color: inherit; text-decoration: none; }
    .container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
    .section { padding: 84px 0; }
    .section-title { margin: 0 0 34px; font: 600 var(--lp-section-title-size)/1.35 var(--serif); letter-spacing: .04em; }
    .section-title small { display: block; margin: 10px 0 0; color: var(--gold); font: 500 13px/1 var(--sans); letter-spacing: .16em; }
    .eyebrow { color: var(--gold-2); font-weight: 700; letter-spacing: .14em; font-size: 13px; }
    .btn { display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-height: 58px; padding: 0 30px; border: 2px solid var(--gold); font-weight: 700; transition: .2s ease; }
    .btn--gold { color: var(--navy); background: linear-gradient(135deg, #f1d878, #caa618); }
    .btn--gold:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(202,166,24,.28); }
    .btn--ghost { color: #fff; background: rgba(7,24,46,.50); border-color: var(--gold); }
    .btn--sub { color: var(--navy); background: transparent; }
    .btn--sub:hover { background: var(--cream); }

    /* Header */
    .site-header { position: absolute; z-index: 20; inset: 0 0 auto; color: #fff; border-bottom: 1px solid rgba(255,255,255,.16);  background: rgba(7,24,46,.20);}
    .site-header__inner { height: 78px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 34px; }
    .brand { line-height: 1.2; }
    .brand strong { display: block; font: 600 20px/1.2 var(--serif); letter-spacing: .04em; }
    .brand span { font-size: 13px; letter-spacing: .14em; opacity: .82; }
    .nav { display: flex; justify-content: center; gap: 24px; }
    .nav a { opacity: .9; }
    .header-cta { min-height: 44px; padding-inline: 18px; }

    /* Hero */
    .hero { position: relative; min-height: 760px; display: flex; flex-direction: column; align-items: stretch; color: #fff; background: var(--navy); overflow: hidden; }
    .hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,13,27,.92) 0%, rgba(3,13,27,.76) 35%, rgba(3,13,27,.18) 70%, rgba(3,13,27,.25) 100%), url('../assets/area-lp/hero.webp') center/cover no-repeat; }
    .hero__content { position: relative; z-index: 2; flex: 1 0 auto; display: flex; flex-direction: column; justify-content: center; padding-top: 118px; padding-bottom: 72px; max-width: 1100px; }
    .hero h1 { margin: 14px 0 22px; font: 600 var(--lp-hero-title-size)/1.35 var(--serif); letter-spacing: .03em; text-shadow: 0 3px 8px rgba(0,0,0,.78); }
    .hero__sublead { max-width: 900px; margin: 0 0 24px; font-size: var(--lp-hero-sublead-size); font-weight: 700; line-height: 1.65; text-shadow: 0 2px 6px rgba(0,0,0,.82); }
    .hero__lead { max-width: 1040px; margin: 0 0 24px; font-size: var(--lp-hero-body-size); line-height: 1.9; text-shadow: 0 2px 5px rgba(0,0,0,.82); }
    .hero__actions { display: flex; justify-content: flex-end; gap: 14px; flex-wrap: wrap; margin-top: 4px; }
    .hero__note { margin-top: 14px; font-size: 13px; opacity: .86; text-shadow: 0 2px 5px rgba(0,0,0,.82); }

    /* trustbar */
    .trustbar { position: relative; z-index: 3; flex: 0 0 auto; background: rgba(4,20,39,.82); border-top: 1px solid rgba(202,166,24,.45); }
    .trustbar__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
    .trust-item { min-height: 104px; display: flex; align-items: center; gap: 15px; padding: 22px 26px; border-right: 1px solid rgba(255,255,255,.14); }
    .trust-item:last-child { border-right: 0; }
    .trust-icon { width: 42px; flex: 0 0 42px; color: var(--gold-2); font-size: var(--lp-trust-icon-size); text-align: center; }
    .trust-item strong { display: block; font: 600 16px/1.4 var(--serif); }
    .trust-item span { display: block; margin-top: 4px;  opacity: .78; }

    /* Problems */
    .problems { position: relative; overflow: hidden; background: var(--cream) url('../assets/area-lp/01_problem_visual.jpg') center/cover no-repeat; }
    .problems::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(246,244,239,.99) 0%, rgba(246,244,239,.97) 27%, rgba(246,244,239,.78) 47%, rgba(246,244,239,.16) 76%, rgba(246,244,239,.04) 100%); }
    .problems__grid { position: relative; z-index: 1; display: grid; grid-template-columns: .9fr 1.35fr .9fr; gap: 38px; align-items: center; }
    .problems__title { padding-left: 24px; border-left: 2px solid var(--gold); }
    .problems__title h2 { margin: 0; font: 600 34px/1.55 var(--serif); }
    .problems__title small {
      display: block;
      margin-top: 10px;
      color: var(--gold);
      font: 500 13px/1 var(--sans);
      letter-spacing: .16em;
    }
    .checklist { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
    .checklist li { position: relative; padding-left: 28px; font-weight: 600; }
    .checklist li::before { content: ""; position: absolute; left: 0; top: .16em; width: 17px; height: 17px; border: 2px solid var(--gold); }
    .checklist li::after { content: ""; position: absolute; left: 5px; top: .22em; width: 7px; height: 12px; border-right: 3px solid var(--gold); border-bottom: 3px solid var(--gold); transform: rotate(40deg); transform-origin: center; }
    .problems__image { display: none; }

    /* Strengths */
    .strengths { color: #fff; background: linear-gradient(135deg, #07172b, #0b2344); }
    .strengths .section-title { text-align: center; }
    .strengths .section-title strong { color: var(--gold-2); font-size: 1.25em; }
    .strength-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
    .strength-card { border-left: 1px solid rgba(202,166,24,.72); padding-left: 22px; }
    .strength-card__num { color: var(--gold-2); font: italic 34px/1 var(--serif); }
    .strength-card h3 { margin: 12px 0 16px; font: 600 24px/1.4 var(--serif); }
    .strength-card img { aspect-ratio: 4 / 3; object-fit: cover; margin-bottom: 18px; }
    .strength-card p { color: rgba(255,255,255,.82); font-size: 14px; }

    /* Works */
    .works { background: #fff; }
    .section-head { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 30px; }
    .section-head .section-title { margin: 0; }
    .text-link { color: var(--navy); font-weight: 700; }
    .works-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .work-card { background: var(--navy); color: #fff; min-width: 0; }
    .work-card__media { position: relative; }
    .work-card img { aspect-ratio: 4 / 5; object-fit: cover; }
    .tag { position: absolute; left: 14px; bottom: 14px; padding: 6px 10px; color: var(--navy); background: rgba(244,217,120,.94); font-size: 13px; font-weight: 700; }
    .work-card__body { padding: 16px 16px 18px; }
    .work-card h3 { margin: 0 0 7px; font-size: 15px; line-height: 1.55; }
    .work-card p { margin: 0; color: rgba(255,255,255,.72); font-size: 13px; }
    .works-empty { grid-column: 1 / -1; margin: 0; padding: 28px; color: var(--muted); background: var(--cream); }

    /* Flow */
    .flow { background: var(--cream); }
    .flow-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 28px; }
    .flow-card { position: relative; padding: 24px 18px 24px; background: #fff; box-shadow: 0 8px 28px rgba(0,0,0,.05); }
    .flow-card__image { aspect-ratio: 4 / 3; object-fit: cover; margin: 0 -18px 18px; width: calc(100% + 36px); }
    .flow-card:not(:last-child)::after { content: "›"; position: absolute; right: -22px; top: 50%; transform: translateY(-50%); z-index: 2;  font-size: 38px; font-weight: 700; line-height: 1; text-shadow: 0 1px 4px rgba(7,24,46,.18); }
    .flow-num { color: var(--gold); font: italic 26px/1 var(--serif); }
    .flow-card h3 { margin: 12px 0 8px; font: 600 17px/1.5 var(--serif); }
    .flow-card p { margin: 0; color: var(--muted); font-size: 13px; }

    /* Area */
    .area { position: relative; color: #fff; background: var(--navy); overflow: hidden; }
    .area::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,17,35,.95) 0%, rgba(4,17,35,.74) 48%, rgba(4,17,35,.16) 100%), url('../assets/area-lp/area.webp') center/cover no-repeat; }
    .area__inner { position: relative; z-index: 1; min-height: 430px; display: flex; align-items: center; }
    .area__content { max-width: 650px; }
    .area h2 { margin: 0 0 18px; font: 600 38px/1.45 var(--serif); }
    .area h2 small { display: block; margin-top: 10px; color: var(--gold); font: 500 13px/1 var(--sans); letter-spacing: .16em; }
    .area p { margin: 0 0 24px; color: rgba(255,255,255,.88); }

    /* FAQ */
    .faq { background: #fff; }
    .faq-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 54px; }
    details { border-top: 1px solid #ddd; }
    details:last-child { border-bottom: 1px solid #ddd; }
    summary { cursor: pointer; list-style: none; padding: 20px 6px; font-weight: 700; display: flex; justify-content: space-between; gap: 20px; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; color: var(--gold); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 34px 22px 6px; color: var(--muted); font-size: 14px; }
    .faq-cta { padding: 34px; background: var(--cream); align-self: start; }
    .faq-cta img { aspect-ratio: 4 / 3; object-fit: cover; margin-bottom: 24px; }
    .faq-cta h3 { margin: 0 0 12px; font: 600 27px/1.5 var(--serif); }
    .faq-cta p { color: var(--muted); font-size: 14px; }

    /* Final CTA */
    .final-cta { position: relative; color: #fff; text-align: center; background: var(--navy); }
    .final-cta::before { content: ""; position: absolute; inset: 0; background: linear-gradient(rgba(3,14,28,.7), rgba(3,14,28,.82)), url('../assets/area-lp/cta.webp') center/cover no-repeat; }
    .final-cta__inner { position: relative; z-index: 1; padding: 90px 0; }
    .final-cta h2 { margin: 0 0 14px; font: 600 clamp(30px, 4vw, 48px)/1.45 var(--serif); }
    .final-cta p { margin: 0 auto 28px; max-width: 760px; color: rgba(255,255,255,.86); }
    .final-cta__actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

    footer { background: #041326; color: rgba(255,255,255,.72); }
    .footer-inner { min-height: 110px; display: flex; align-items: center; justify-content: space-between; gap: 30px; font-size: 13px; }
    .footer-nav { display: flex; gap: 18px; flex-wrap: wrap; }

    @media (max-width: 960px) {
      .nav { display: none; }
      .site-header__inner { grid-template-columns: 1fr auto; }
      .hero { min-height: 820px; align-items: stretch; }
      .hero__content { padding-top: 140px; }
      .trustbar { position: relative; }
      .trustbar__grid { grid-template-columns: repeat(2, 1fr); }
      .trust-item:nth-child(2) { border-right: 0; }
      .problems__grid { grid-template-columns: 1fr 1fr; }
      .problems__image { display: none; }
      .strength-grid { grid-template-columns: 1fr; }
      .works-grid { grid-template-columns: repeat(2, 1fr); }
      .flow-grid { grid-template-columns: repeat(2, 1fr); }
      .flow-card::after { display: none; }
      .faq-grid { grid-template-columns: 1fr; }
    }

    @media (max-width: 767px) {
      .container { width: min(100% - 28px, 1180px); }
      .section { padding: 62px 0; }
      .site-header__inner { height: 68px; }
      .brand strong { font-size: 16px; }
      .header-cta { min-height: 40px; padding-inline: 12px; font-size: 13px; }
      .hero { min-height: 900px; }
      .hero::before { background: linear-gradient(180deg, rgba(3,13,27,.55) 0%, rgba(3,13,27,.78) 45%, rgba(3,13,27,.98) 100%), url('../assets/area-lp/hero.webp') 62% center/cover no-repeat; }
      .hero__content { padding-top: 110px; }
      .hero h1 { font-size: 39px; }
      .hero__lead { font-size: 13px; line-height: 1.9; }
      .hero__actions .btn { width: calc(100% - 28px); margin-inline: auto; }
      .trustbar__grid { grid-template-columns: 1fr 1fr; }
      .trust-item { min-height: 86px; padding: 14px 12px; gap: 10px; }
      .trust-icon { width: 36px; flex-basis: 36px; font-size: 34px; }
      .problems { background-position: 68% center; }
      .problems::before { background: linear-gradient(180deg, rgba(246,244,239,.98) 0%, rgba(246,244,239,.9) 48%, rgba(246,244,239,.16) 100%); }
      .problems__grid { grid-template-columns: 1fr; gap: 28px; }
      .problems__title h2 { font-size: 29px; }
      .section-title { font-size: 31px; }
      .flow-card__image,
      .strength-card img { width: calc(100% - 20px); margin-left: auto; margin-right: auto; }
      .section-head { display: block; }
      .section-head .text-link { display: block; margin-top: 14px; text-align: right; }
      .works-grid { display: grid; grid-template-columns: 1fr 1fr; }
      .work-card img { aspect-ratio: 4 / 5; }
      .flow-grid { grid-template-columns: 1fr; }
      .flow-card p { letter-spacing: -.04em; }
      .area__inner { min-height: 520px; align-items: end; padding-bottom: 64px; }
      .area::before { background: linear-gradient(180deg, rgba(4,17,35,.26), rgba(4,17,35,.96) 68%), url('../assets/area-lp/area.webp') 52% center/cover no-repeat; }
      .area h2 { font-size: 31px; }
      .faq-cta { padding: 24px; }
      .footer-inner { padding: 28px 0; align-items: flex-start; flex-direction: column; }
      .hero__content { display: flex; flex-direction: column; }
      .hero__content .eyebrow { order: 1; }
      .hero__content #hero-title { order: 2; }
      .hero__content .hero__sublead { order: 3; }
      .hero__content .hero__actions { order: 4; }
      .hero__content .hero__lead { order: 5; margin-top: 20px; }
      .hero__content .hero__note { order: 6; }
    }