:root {
        --ink: #10221d;
        --text: #31443d;
        --muted: #68776f;
        --green: #36ad7c;
        --green-deep: #1f8061;
        --green-soft: #e7f8f0;
        --aqua: #dff7fb;
        --sky: #8fd7ee;
        --paper: #fffef9;
        --white: #ffffff;
        --line: #e7e1d9;
        --coral: #ff8177;
        --blue: #2c7fae;
        --shadow: 0 24px 70px rgba(26, 83, 64, 0.18);
      }

      * {
        box-sizing: border-box;
      }

      html {
        scroll-behavior: smooth;
      }

      body {
        margin: 0;
        color: var(--ink);
        background: var(--paper);
        font-family:
          "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP",
          system-ui, sans-serif;
        line-height: 1.75;
      }

      a {
        color: inherit;
      }

      img {
        display: block;
        max-width: 100%;
        height: auto;
      }

      .site-header {
        position: sticky;
        top: 0;
        z-index: 20;
        border-bottom: 1px solid rgba(231, 225, 217, 0.7);
        background: rgba(255, 254, 249, 0.82);
        backdrop-filter: blur(18px);
      }

      .nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: min(1160px, calc(100% - 40px));
        height: 72px;
        margin: 0 auto;
      }

      .brand {
        display: inline-flex;
        gap: 12px;
        align-items: center;
        font-weight: 950;
        text-decoration: none;
      }

      .brand img {
        width: 42px;
        height: 42px;
        border-radius: 14px;
        box-shadow: 0 12px 26px rgba(31, 128, 97, 0.22);
      }

      .nav-links {
        display: flex;
        gap: 28px;
        align-items: center;
        color: var(--muted);
        font-size: 14px;
        font-weight: 900;
      }

      .nav-links a {
        text-decoration: none;
      }

      .nav-links a:hover {
        color: var(--green-deep);
      }

      h1,
      h2,
      h3,
      p {
        margin-top: 0;
      }

      .hero {
        position: relative;
        overflow: hidden;
        min-height: calc(100svh - 72px);
        border-bottom: 1px solid var(--line);
        background:
          linear-gradient(112deg, rgba(255, 254, 249, 0.96) 0%, rgba(244, 255, 250, 0.92) 48%, rgba(224, 248, 252, 0.94) 100%),
          url("images/app-screen-05.jpg") right 5% center / min(44vw, 540px) auto no-repeat;
      }

      .hero::after {
        content: "";
        position: absolute;
        inset: auto 0 0;
        height: 26%;
        background: linear-gradient(180deg, rgba(255, 254, 249, 0), var(--paper));
        pointer-events: none;
      }

      .hero-inner {
        position: relative;
        z-index: 1;
        display: grid;
        grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
        gap: 54px;
        align-items: center;
        width: min(1160px, calc(100% - 40px));
        min-height: calc(100svh - 72px);
        margin: 0 auto;
        padding: 56px 0 72px;
      }

      .hero-copy {
        max-width: 610px;
      }

      .eyebrow,
      .section-label {
        margin-bottom: 10px;
        color: var(--green-deep);
        font-size: 13px;
        font-weight: 950;
        letter-spacing: 0;
      }

      h1 {
        margin-bottom: 18px;
        font-size: clamp(52px, 8vw, 96px);
        font-weight: 950;
        line-height: 1.02;
      }

      .lead {
        max-width: 570px;
        margin-bottom: 28px;
        color: var(--text);
        font-size: clamp(18px, 2.1vw, 23px);
        font-weight: 850;
      }

      .hero-points {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin: 0 0 28px;
        padding: 0;
        list-style: none;
      }

      .hero-points li {
        padding: 8px 13px;
        border: 1px solid rgba(31, 128, 97, 0.18);
        border-radius: 999px;
        color: var(--green-deep);
        background: rgba(255, 255, 255, 0.72);
        font-size: 13px;
        font-weight: 900;
      }

      .store-row {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        align-items: center;
      }

      .store-badge {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 52px;
        transition: transform 160ms ease, opacity 160ms ease;
      }

      .store-badge:hover {
        transform: translateY(-2px);
      }

      .store-badge img {
        width: auto;
        height: 52px;
      }

      .detail-link {
        display: inline-flex;
        align-items: center;
        min-height: 52px;
        padding: 0 20px;
        border: 2px solid rgba(31, 128, 97, 0.18);
        border-radius: 999px;
        color: var(--green-deep);
        background: rgba(255, 255, 255, 0.76);
        font-size: 14px;
        font-weight: 950;
        text-decoration: none;
      }

      .hero-showcase {
        position: relative;
        width: min(100%, 620px);
        min-height: 610px;
        margin-inline: auto;
      }

      .phone {
        position: absolute;
        overflow: hidden;
        border: 10px solid #13241f;
        border-radius: 38px;
        background: #13241f;
        box-shadow: var(--shadow);
      }

      .phone img {
        width: 100%;
        aspect-ratio: 1260 / 2736;
        object-fit: cover;
        border-radius: 27px;
      }

      .phone-main {
        z-index: 3;
        left: 50%;
        top: 0;
        width: min(48%, 286px);
        transform: translateX(-50%);
      }

      .phone-sub {
        z-index: 1;
        left: 10px;
        top: 112px;
        width: min(36%, 214px);
        transform: rotate(-3deg);
      }

      .phone-list {
        z-index: 2;
        right: 10px;
        top: 112px;
        width: min(36%, 214px);
        transform: rotate(3deg);
      }

      .float-note {
        position: absolute;
        z-index: 4;
        width: 176px;
        min-height: 82px;
        padding: 13px 15px;
        border: 1px solid rgba(31, 128, 97, 0.16);
        border-radius: 14px;
        background: rgba(255, 255, 255, 0.94);
        box-shadow: 0 18px 42px rgba(26, 83, 64, 0.14);
      }

      .float-note strong {
        display: block;
        margin-bottom: 2px;
        color: var(--green-deep);
        font-size: 21px;
        line-height: 1.25;
      }

      .float-note span {
        color: var(--muted);
        font-size: 12px;
        font-weight: 850;
      }

      .note-budget {
        left: 0;
        top: 54px;
      }

      .note-saved {
        right: 0;
        top: 326px;
      }

      .section {
        width: min(1160px, calc(100% - 40px));
        margin: 0 auto;
        padding: 96px 0;
      }

      .section-head {
        max-width: 690px;
        margin-bottom: 36px;
      }

      .section-head.is-centered {
        margin-inline: auto;
        text-align: center;
      }

      h2 {
        margin-bottom: 14px;
        font-size: clamp(31px, 4.4vw, 54px);
        font-weight: 950;
        line-height: 1.18;
      }

      .section-head p {
        color: var(--muted);
        font-size: 16px;
        font-weight: 760;
      }

      .feature-layout {
        display: grid;
        grid-template-columns: 0.92fr 1.08fr;
        gap: 52px;
        align-items: center;
      }

      .feature-phone {
        justify-self: center;
        overflow: hidden;
        width: min(100%, 330px);
        border: 10px solid #13241f;
        border-radius: 38px;
        background: #13241f;
        box-shadow: var(--shadow);
      }

      .feature-phone img {
        width: 100%;
        aspect-ratio: 1260 / 2736;
        object-fit: cover;
        border-radius: 27px;
      }

      .feature-list {
        display: grid;
        gap: 18px;
      }

      .feature {
        display: grid;
        grid-template-columns: 56px 1fr;
        gap: 18px;
        align-items: start;
        padding: 24px 0;
        border-bottom: 1px solid var(--line);
      }

      .feature:first-child {
        border-top: 1px solid var(--line);
      }

      .feature-mark {
        display: grid;
        place-items: center;
        width: 52px;
        height: 52px;
        border-radius: 8px;
        color: #fff;
        background: var(--green);
        font-size: 23px;
        font-weight: 950;
      }

      .feature:nth-child(2) .feature-mark {
        background: var(--blue);
      }

      .feature:nth-child(3) .feature-mark {
        background: var(--coral);
      }

      .feature:nth-child(4) .feature-mark {
        background: #86b6c9;
      }

      .feature h3 {
        margin-bottom: 6px;
        font-size: 22px;
        font-weight: 950;
        line-height: 1.35;
      }

      .feature p {
        margin: 0;
        color: var(--muted);
        font-size: 15px;
        font-weight: 740;
      }

      .screens {
        overflow: hidden;
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
        background:
          linear-gradient(180deg, rgba(231, 248, 240, 0.86), rgba(255, 254, 249, 0.98)),
          var(--green-soft);
      }

      .screen-grid {
        display: grid;
        grid-template-columns: repeat(5, minmax(165px, 1fr));
        gap: 18px;
        align-items: start;
      }

      .screen-shot {
        overflow: hidden;
        border: 8px solid #13241f;
        border-radius: 30px;
        background: #13241f;
        box-shadow: 0 18px 48px rgba(26, 83, 64, 0.15);
      }

      .screen-shot:nth-child(2),
      .screen-shot:nth-child(4) {
        margin-top: 54px;
      }

      .screen-shot:nth-child(3) {
        margin-top: 18px;
      }

      .screen-shot img {
        width: 100%;
        aspect-ratio: 1260 / 2736;
        object-fit: cover;
        border-radius: 22px;
      }

      .steps {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0;
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
        counter-reset: step;
      }

      .step {
        min-height: 250px;
        padding: 34px 30px;
        border-right: 1px solid var(--line);
        counter-increment: step;
      }

      .step:last-child {
        border-right: 0;
      }

      .step::before {
        content: "0" counter(step);
        display: block;
        margin-bottom: 28px;
        color: var(--green-deep);
        font-size: 14px;
        font-weight: 950;
      }

      .step h3 {
        margin-bottom: 10px;
        font-size: 24px;
        font-weight: 950;
      }

      .step p {
        margin: 0;
        color: var(--muted);
        font-weight: 740;
      }

      .download {
        overflow: hidden;
        border-top: 1px solid var(--line);
        background:
          linear-gradient(106deg, rgba(17, 37, 32, 0.92), rgba(31, 128, 97, 0.9)),
          #122520;
        color: #fff;
      }

      .download-inner {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 320px;
        gap: 50px;
        align-items: center;
        width: min(1160px, calc(100% - 40px));
        margin: 0 auto;
        padding: 76px 0;
      }

      .download .section-label,
      .download h2,
      .download p {
        color: #fff;
      }

      .download h2 {
        max-width: 680px;
      }

      .download p {
        max-width: 620px;
        color: rgba(255, 255, 255, 0.82);
        font-size: 17px;
        font-weight: 760;
      }

      .mascot {
        justify-self: end;
        width: 300px;
        border: 8px solid rgba(255, 255, 255, 0.72);
        border-radius: 32px;
        box-shadow: 0 26px 70px rgba(0, 0, 0, 0.24);
      }

      .site-footer {
        border-top: 1px solid var(--line);
        background: var(--white);
      }

      .footer-inner {
        display: flex;
        flex-wrap: wrap;
        gap: 16px 26px;
        align-items: center;
        justify-content: space-between;
        width: min(1160px, calc(100% - 40px));
        margin: 0 auto;
        padding: 30px 0;
        color: var(--muted);
        font-size: 13px;
        font-weight: 740;
      }

      .footer-links {
        display: flex;
        gap: 18px;
      }

      .footer-links a {
        text-decoration: none;
      }

      .footer-links a:hover {
        color: var(--green-deep);
      }

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      margin-top: 42px;
      border-top: 1px solid var(--line);
      border-left: 1px solid var(--line);
    }

    .faq-grid article {
      min-height: 230px;
      padding: 30px;
      border-right: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .faq-grid span {
      display: block;
      margin-bottom: 26px;
      color: var(--green-deep);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: .14em;
    }

    .faq-grid h3 { margin: 0 0 12px; font-size: 20px; }
    .faq-grid p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; }

    @media (max-width: 980px) {
        .hero {
          background:
            linear-gradient(112deg, rgba(255, 254, 249, 0.97), rgba(232, 249, 245, 0.94)),
            var(--paper);
        }

        .hero-inner,
        .feature-layout,
        .download-inner {
    grid-template-columns: 1fr;
    }

        .hero-inner {
          min-height: auto;
        }

        .hero-showcase {
          width: min(650px, 100%);
          margin: 0 auto;
        }

        .feature-phone {
          order: 2;
        }

        .screen-grid {
          grid-template-columns: repeat(3, minmax(160px, 1fr));
        }

        .mascot {
          justify-self: start;
        }
      }

      @media (max-width: 680px) {
        .faq-grid { grid-template-columns: 1fr; }
        .faq-grid article { min-height: 0; padding: 24px; }

        .nav {
          width: min(100% - 32px, 1160px);
          height: 64px;
        }

        .nav-links a:not(:last-child) {
          display: none;
        }

        .hero-inner,
        .section,
        .download-inner,
        .footer-inner {
          width: min(100% - 32px, 1160px);
        }

        .hero-inner {
          gap: 34px;
          padding: 42px 0 54px;
        }

        .lead {
          font-size: 17px;
        }

        .store-badge,
        .store-badge img,
        .detail-link {
          height: 46px;
        }

        .detail-link {
          padding: 0 16px;
        }

        .hero-showcase {
          width: 100%;
          min-height: 490px;
        }

        .phone {
          border-width: 6px;
          border-radius: 28px;
        }

        .phone img {
          border-radius: 21px;
        }

        .phone-main {
          left: 50%;
          top: 0;
          width: min(56%, 210px);
          transform: translateX(-50%);
        }

        .phone-sub {
          left: 0;
          top: 106px;
          width: min(37%, 140px);
          transform: rotate(-2deg);
        }

        .phone-list {
          right: 0;
          top: 106px;
          width: min(37%, 140px);
          transform: rotate(2deg);
        }

        .float-note {
          width: 140px;
          min-height: 70px;
          padding: 10px 12px;
        }

        .float-note strong {
          font-size: 18px;
        }

        .note-budget {
          left: 0;
          top: 42px;
        }

        .note-saved {
          right: 0;
          top: 272px;
        }

        .section {
          padding: 66px 0;
        }

        .feature {
          grid-template-columns: 46px 1fr;
          gap: 14px;
          padding: 22px 0;
        }

        .feature-mark {
          width: 44px;
          height: 44px;
          font-size: 20px;
        }

        .screen-grid {
          display: flex;
          gap: 14px;
          margin-inline: -16px;
          padding: 4px 16px 18px;
          overflow-x: auto;
          scroll-snap-type: x mandatory;
        }

        .screen-shot {
          flex: 0 0 68%;
          border-width: 6px;
          border-radius: 26px;
          scroll-snap-align: start;
        }

        .screen-shot:nth-child(2),
        .screen-shot:nth-child(3),
        .screen-shot:nth-child(4) {
          margin-top: 0;
        }

        .screen-shot img {
          border-radius: 20px;
        }

        .steps {
          grid-template-columns: 1fr;
        }

        .step {
          min-height: auto;
          padding: 28px 0;
          border-right: 0;
          border-bottom: 1px solid var(--line);
        }

        .step:last-child {
          border-bottom: 0;
        }

        .download-inner {
          padding: 62px 0;
        }

        .mascot {
          width: min(100%, 280px);
        }

        .footer-inner {
          align-items: flex-start;
          flex-direction: column;
        }
      }