:root {
      --ink: #1f2428;
      --sub: #5a646b;
      --muted: #7d878e;
      --line: #d9e1df;
      --paper: #f8f7f2;
      --milk: #fffdf7;
      --green: #255d4f;
      --green-2: #4f8d75;
      --gold: #b8873d;
      --rose: #b75b50;
      --blue: #2d5d76;
      --shadow: 0 20px 60px rgba(31, 36, 40, 0.12);
      --radius: 8px;
      font-family: "Zen Maru Gothic", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    @media (prefers-reduced-motion: no-preference) {
      html {
        scroll-behavior: smooth;
      }
    }

    body {
      margin: 0;
      color: var(--ink);
      background: #f3f1ee;
      line-height: 1.75;
      letter-spacing: 0;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      border-bottom: 1px solid rgba(217, 225, 223, 0.9);
      background: rgba(255, 253, 247, 0.92);
      backdrop-filter: blur(18px);
    }

    .nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: min(1180px, calc(100% - 32px));
      min-height: 72px;
      margin: 0 auto;
      gap: 24px;
    }

    .brand {
      display: flex;
      flex-direction: column;
      line-height: 1.1;
      font-weight: 800;
      letter-spacing: 0.03em;
    }

    .brand small {
      color: var(--green);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      color: var(--sub);
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
    }

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

    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 18px;
      border: 1px solid transparent;
      border-radius: 999px;
      background: var(--green);
      color: #fff;
      font-size: 14px;
      font-weight: 800;
      line-height: 1.2;
      box-shadow: 0 12px 26px rgba(37, 93, 79, 0.2);
    }

    .button.secondary {
      background: transparent;
      color: var(--green);
      border-color: rgba(37, 93, 79, 0.36);
      box-shadow: none;
    }

    .button.dark {
      background: var(--ink);
      box-shadow: none;
    }

    .button:disabled,
    .button[aria-disabled="true"] {
      cursor: not-allowed;
      opacity: 0.64;
    }

    .hero {
      position: relative;
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(232,231,231,0.92) 0%, rgba(232,231,231,0.78) 42%, rgba(232,231,231,0.5) 72%),
        url("assets/cotaru-3flavors.jpg") center right / cover no-repeat;
    }

    .hero-inner {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 370px;
      gap: 42px;
      width: min(1180px, calc(100% - 32px));
      min-height: min(720px, calc(100vh - 110px));
      margin: 0 auto;
      padding: 72px 0 56px;
      align-items: end;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      width: fit-content;
      min-height: 30px;
      padding: 0 12px;
      border-radius: 999px;
      background: rgba(37, 93, 79, 0.1);
      color: var(--green);
      font-size: 12px;
      font-weight: 900;
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }

    .eyebrow.eyebrow-hand {
      padding: 0;
      min-height: 0;
      border-radius: 0;
      background: transparent;
      font-family: "Yusei Magic", "Zen Maru Gothic", sans-serif;
      font-size: 20px;
      font-weight: 400;
      letter-spacing: 0.02em;
      text-transform: none;
    }

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

    h1 {
      max-width: 790px;
      margin: 22px 0 20px;
      font-size: clamp(28px, 4.2vw, 58px);
      line-height: 1.08;
      letter-spacing: 0;
    }

    .nowrap {
      white-space: nowrap;
    }

    .lead {
      max-width: 670px;
      color: #344047;
      font-size: clamp(17px, 2.2vw, 22px);
      line-height: 1.72;
      font-weight: 700;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 30px;
    }

    .proof-strip {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 10px;
      max-width: 760px;
      margin-top: 34px;
    }

    .proof {
      min-height: 84px;
      padding: 14px;
      border: 1px solid rgba(37, 93, 79, 0.18);
      border-radius: var(--radius);
      background: rgba(255, 253, 247, 0.82);
    }

    .proof-icon {
      font-size: 24px;
      margin-bottom: 6px;
      line-height: 1;
    }

    .proof strong {
      display: block;
      color: var(--green);
      font-size: 21px;
      line-height: 1.1;
    }

    .proof span {
      display: block;
      margin-top: 6px;
      color: var(--sub);
      font-size: 12px;
      font-weight: 800;
      line-height: 1.35;
    }

    .mini-flow {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 22px;
      padding: 16px 18px;
      border-radius: var(--radius);
      background: rgba(37, 93, 79, 0.06);
      border: 1px solid rgba(37, 93, 79, 0.14);
    }

    .mini-flow-step {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--ink);
      font-size: 14px;
      font-weight: 750;
    }

    .scene-strip {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr 0.85fr;
      gap: 10px;
      max-width: 760px;
      margin-top: 18px;
    }

    .scene-strip figure {
      position: relative;
      overflow: hidden;
      min-height: 136px;
      margin: 0;
      border: 1px solid rgba(255, 253, 247, 0.74);
      border-radius: var(--radius);
      background: #e7ece9;
      box-shadow: 0 10px 28px rgba(31, 36, 40, 0.1);
    }

    .scene-strip figure:first-child {
      grid-row: span 2;
    }

    .scene-strip img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .scene-strip figcaption {
      left: 8px;
      right: 8px;
      bottom: 8px;
      padding: 6px 8px;
      font-weight: 800;
    }

    .mini-flow-step strong {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--green);
      color: #fff;
      font-size: 12px;
      font-weight: 900;
    }

    .mini-flow-arrow {
      color: var(--muted);
      font-size: 16px;
    }

    .hero-card {
      align-self: start;
      margin-top: -22px;
      padding: 22px;
      border: 1px solid rgba(255, 255, 255, 0.62);
      border-radius: var(--radius);
      background: rgba(255, 253, 247, 0.86);
      box-shadow: var(--shadow);
    }

    .card-photo {
      position: relative;
      overflow: hidden;
      aspect-ratio: 620 / 605;
      margin: 0 0 18px;
      border-radius: 6px;
      background: #e7ece9;
    }

    .card-photo img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center top;
    }

    .hero-card h2 {
      margin-bottom: 12px;
      font-size: 18px;
      line-height: 1.45;
    }

    .hero-card p {
      margin-bottom: 18px;
      color: var(--sub);
      font-size: 14px;
    }

    .mini-table {
      display: grid;
      gap: 8px;
      margin: 0;
    }

    .mini-row {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      padding: 10px 0;
      border-top: 1px solid var(--line);
      color: var(--sub);
      font-size: 14px;
    }

    .mini-row strong {
      color: var(--ink);
      text-align: right;
    }

    .section {
      padding: 40px 0;
    }

    .section.alt {
      background: #e8e7e7;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .container {
      width: min(1180px, calc(100% - 32px));
      margin: 0 auto;
    }

    .section-head {
      margin-bottom: 28px;
    }

    .section-head .eyebrow {
      margin-bottom: 18px;
    }

    .section-title {
      margin: 0;
      font-size: clamp(28px, 3.8vw, 48px);
      line-height: 1.15;
      letter-spacing: -0.01em;
      text-align: left;
    }

    .section-title-line {
      display: block;
    }

    .section-title-line + .section-title-line {
      margin-top: 0.18em;
    }

    .section-lead {
      margin: 16px 0 0;
      max-width: 38rem;
      color: var(--sub);
      font-size: clamp(16px, 2.2vw, 18px);
      font-weight: 650;
      line-height: 1.65;
    }

    .section-lead--accent {
      color: var(--green);
      font-weight: 700;
    }

    .section-lead--accent strong {
      font-size: 1.45em;
      font-weight: 900;
    }

    .section-subhead {
      margin: 0;
      font-size: clamp(17px, 2.4vw, 21px);
      line-height: 1.35;
      letter-spacing: 0.02em;
      font-weight: 700;
      color: var(--green);
    }

    #howto .howto-body {
      display: grid;
      gap: 18px;
    }

    #howto .howto-machine-group {
      display: grid;
      gap: 12px;
    }

    #howto .howto-machine-group .section-subhead,
    #howto .howto-support-group .section-subhead {
      margin-bottom: 0;
    }

    #howto .howto-support-group {
      display: grid;
      gap: 12px;
    }

    #howto .howto-machine-frame {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--milk);
      overflow: hidden;
    }

    #howto .howto-machine-frame span {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 56px;
      padding: 14px 10px;
      font-size: clamp(15px, 2vw, 18px);
      font-weight: 800;
      color: var(--green);
      text-align: center;
    }

    #howto .howto-machine-frame span:not(:last-child) {
      border-right: 1px solid var(--line);
    }

    #howto .howto-support-list {
      margin-top: 0;
      gap: 12px;
    }

    #howto .decision-list div {
      min-height: 0;
      padding: 18px 16px;
    }

    #howto .decision-list strong {
      margin-bottom: 6px;
      font-size: 17px;
    }

    #howto .decision-list span {
      font-size: 13px;
      line-height: 1.65;
    }

    .section .eyebrow {
      margin-bottom: 40px;
    }
    .section .eyebrow + h2 {
      margin-top: 0;
    }

    .logo-row {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
      margin-top: 30px;
    }

    .logo-panel {
      display: flex;
      aspect-ratio: 1 / 1;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      padding: 24px;
    }

    .logo-panel strong {
      font-size: clamp(22px, 3.4vw, 32px);
      line-height: 1;
      letter-spacing: 0.02em;
    }

    .logo-img {
      display: block;
      width: auto;
      height: auto;
      max-width: 60%;
      max-height: 68px;
      margin: 0 auto 4px;
    }

    .store-photos {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
      width: 100%;
      margin: 14px 0 6px;
    }

    .store-photos figure {
      margin: 0;
      border-radius: 12px;
      overflow: hidden;
      aspect-ratio: 1 / 1;
      background: var(--milk);
    }

    .store-photos img {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .result-photos {
      display: flex;
      gap: 10px;
      margin-top: 14px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      -webkit-overflow-scrolling: touch;
      scrollbar-width: none;
    }

    .result-photos::-webkit-scrollbar {
      display: none;
    }

    .result-photos figure {
      flex: 1 1 0;
      min-width: 0;
      margin: 0;
      scroll-snap-align: start;
    }

    .result-photos figure img {
      display: block;
      width: 100%;
      aspect-ratio: 3 / 2;
      object-fit: cover;
      object-position: 50% 55%;
      border-radius: 12px;
      background: var(--milk);
    }

    .result-photos figure:nth-child(2) img {
      object-position: 50% 80%;
    }

    .result-photos figure:nth-child(3) img {
      object-position: 50% 65%;
    }

    .result-photos figcaption {
      position: static;
      padding: 0;
      background: none;
      border-radius: 0;
      margin-top: 6px;
      text-align: center;
      font-size: 11px;
      font-weight: 800;
      letter-spacing: 0.04em;
      color: var(--sub);
    }

    @media (max-width: 620px) {
      .result-photos {
        gap: 8px;
        scroll-padding-left: 4px;
      }

      .result-photos figure {
        flex: 0 0 58%;
      }
    }

    .logo-panel span {
      margin-top: 12px;
      color: var(--sub);
      font-size: 14px;
      font-weight: 700;
    }

    .logo-desc {
      margin: 12px 0 0;
      color: var(--sub);
      font-size: 13px;
      font-weight: 600;
      line-height: 1.8;
    }

    .decision-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 22px;
      align-items: stretch;
      margin-top: 30px;
    }

    .decision-card {
      display: grid;
      align-content: space-between;
      padding: 24px;
      border: 1px solid rgba(37, 93, 79, 0.18);
      border-radius: var(--radius);
      background: var(--green);
      color: #fff;
    }

    .decision-card h3 {
      margin-bottom: 10px;
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.2;
    }

    .decision-card p {
      color: rgba(255, 255, 255, 0.78);
      font-weight: 650;
    }

    .decision-list {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
    }

    .decision-list div {
      min-height: 132px;
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--milk);
    }

    .decision-list strong {
      display: block;
      color: var(--ink);
      font-size: 16px;
      line-height: 1.35;
    }

    .decision-list span {
      display: block;
      margin-top: 8px;
      color: var(--sub);
      font-size: 13px;
      line-height: 1.55;
      font-weight: 700;
    }

    .two-col {
      display: grid;
      grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
      gap: 46px;
      align-items: center;
    }

    .image-stack {
      display: grid;
      grid-template-columns: 1fr 0.74fr;
      grid-template-rows: 512px;
      gap: 12px;
    }

    .image-stack figure,
    .wide-figure,
    .photo-tile {
      position: relative;
      overflow: hidden;
      margin: 0;
      border-radius: var(--radius);
      background: #e7ece9;
    }

    .image-stack img,
    .wide-figure img,
    .photo-tile img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .image-stack figure:nth-child(2) img {
      object-position: 72% center;
    }

    figcaption {
      position: absolute;
      left: 10px;
      right: 10px;
      bottom: 10px;
      padding: 8px 10px;
      border-radius: 6px;
      background: rgba(31, 36, 40, 0.72);
      color: #fff;
      font-size: 11px;
      line-height: 1.4;
    }

    .story-copy h2 {
      margin-bottom: 22px;
      font-size: clamp(30px, 4.2vw, 54px);
      line-height: 1.13;
    }

    .story-copy p {
      color: var(--sub);
      font-size: 16px;
      font-weight: 650;
    }

    .quote {
      margin-top: 28px;
      padding-left: 20px;
      border-left: 4px solid var(--gold);
      color: var(--ink);
      font-size: 21px;
      font-weight: 800;
      line-height: 1.55;
    }

    .cards {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 14px;
    }

    .feature {
      min-height: 210px;
      padding: 20px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--milk);
    }

    .feature-icon {
      font-size: 32px;
      margin-bottom: 8px;
      line-height: 1;
    }

    .feature .num {
      color: var(--gold);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 0.08em;
    }

    .feature h3 {
      margin: 16px 0 10px;
      font-size: 19px;
      line-height: 1.35;
    }

    .feature p {
      margin: 0;
      color: var(--sub);
      font-size: 14px;
      font-weight: 620;
      line-height: 1.65;
    }

    .fit-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      margin-top: 22px;
    }

    .fit-card {
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--milk);
    }

    .fit-card img {
      width: 100%;
      height: 160px;
      object-fit: cover;
    }

    .fit-card div {
      padding: 16px;
    }

    .fit-card strong {
      display: block;
      margin-bottom: 6px;
      color: var(--ink);
      font-size: 16px;
      line-height: 1.35;
    }

    .fit-card span {
      color: var(--sub);
      font-size: 13px;
      line-height: 1.6;
      font-weight: 700;
    }

    .machine-options {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .spec-grid {
      display: grid;
      grid-template-columns: 0.8fr 1.2fr;
      gap: 28px;
      align-items: stretch;
    }

    .spec-panel {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--milk);
      padding: 26px;
    }

    .spec-panel h3 {
      margin-bottom: 18px;
      font-size: 24px;
    }

    .spec-list {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .spec-list li {
      display: grid;
      grid-template-columns: 150px 1fr;
      gap: 20px;
      padding: 13px 0;
      border-top: 1px solid var(--line);
      color: var(--sub);
      font-size: 15px;
      font-weight: 620;
    }

    .spec-list li:first-child {
      border-top: 0;
    }

    .spec-list span {
      color: var(--ink);
      font-weight: 900;
    }

    .profit-card {
      display: grid;
      align-content: space-between;
      min-height: 100%;
      padding: 28px;
      border-radius: var(--radius);
      background: var(--green);
      color: #fff;
    }

    .profit-card h3 {
      margin-bottom: 10px;
      font-size: 28px;
      line-height: 1.25;
    }

    .profit-card p {
      color: rgba(255, 255, 255, 0.78);
      font-weight: 650;
    }

    .profit-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 26px;
    }

    .profit-metrics div {
      min-height: 112px;
      padding: 16px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.08);
    }

    .profit-metrics strong {
      display: block;
      font-size: 24px;
      line-height: 1.1;
    }

    .profit-metrics span {
      display: block;
      margin-top: 10px;
      color: rgba(255, 255, 255, 0.74);
      font-size: 12px;
      line-height: 1.35;
      font-weight: 750;
    }

    .spec-photo-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      margin-top: 24px;
    }

    .spec-photo-grid figure {
      overflow: hidden;
      margin: 0;
      border-radius: var(--radius);
      background: #e7ece9;
      min-height: 172px;
    }

    .spec-photo-grid img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .wide-figure {
      height: 390px;
      margin-bottom: 28px;
    }

    .quality-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }

    .quality-item {
      min-height: 188px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--milk);
      padding: 20px;
    }

    .quality-item h3 {
      margin-bottom: 12px;
      font-size: 20px;
      line-height: 1.35;
    }

    .quality-item p {
      margin: 0;
      color: var(--sub);
      font-size: 14px;
      font-weight: 620;
    }

    .flavor-area {
      display: grid;
      grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1fr);
      gap: 34px;
      align-items: start;
    }

    .flavor-list {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      margin-top: 22px;
    }

    .flavor-list span {
      min-height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 10px;
      border-radius: 999px;
      background: #fff;
      color: var(--ink);
      font-size: 13px;
      font-weight: 800;
      text-align: center;
      border: 1px solid var(--line);
    }

    .photo-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .photo-tile {
      aspect-ratio: 1 / 1;
    }

    .flow {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 12px;
      counter-reset: step;
    }

    .stage-flow-2 {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .stage-flow-3 {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .flow-step {
      position: relative;
      min-height: 184px;
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--milk);
      counter-increment: step;
    }

    .flow-step::before {
      content: counter(step, decimal-leading-zero);
      display: block;
      color: var(--blue);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 0.1em;
    }

    .flow-step h3 {
      margin: 18px 0 10px;
      font-size: 19px;
      line-height: 1.35;
    }

    .flow-step p {
      margin: 0;
      color: var(--sub);
      font-size: 14px;
      font-weight: 620;
    }

    .two-stage {
      display: grid;
      gap: 0;
    }

    .stage-block {
      padding: 24px;
      border-radius: var(--radius);
      border: 2px solid var(--line);
    }

    .stage-1 {
      background: var(--milk);
      border-color: var(--green);
    }

    .stage-2 {
      background: var(--paper);
      border-color: var(--gold);
    }

    .stage-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 18px;
      padding: 6px 14px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 0.06em;
    }

    .stage-1 .stage-label {
      background: rgba(37, 93, 79, 0.1);
      color: var(--green);
    }

    .stage-2 .stage-label {
      background: rgba(184, 135, 61, 0.12);
      color: var(--gold);
    }

    .stage-label span {
      font-weight: 700;
    }

    .stage-arrow {
      text-align: center;
      font-size: 28px;
      color: var(--muted);
      padding: 8px 0;
    }

    .faq-list {
      display: grid;
      gap: 0;
    }

    .faq-item {
      border-bottom: 1px solid var(--line);
      padding: 20px 0;
    }

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

    .faq-item summary {
      cursor: pointer;
      font-size: 17px;
      font-weight: 800;
      line-height: 1.55;
      color: var(--ink);
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }

    .faq-item summary::after {
      content: "+";
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: rgba(37, 93, 79, 0.08);
      color: var(--green);
      font-size: 18px;
      font-weight: 900;
      transition: transform 0.2s;
    }

    .faq-item[open] summary::after {
      content: "\2212";
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item p {
      margin: 12px 0 0;
      color: var(--sub);
      font-size: 15px;
      font-weight: 620;
      line-height: 1.72;
      padding-right: 44px;
    }

    .form-band {
      background: var(--ink);
      color: #fff;
      padding: 56px 0;
    }

    .form-layout {
      display: grid;
      grid-template-columns: minmax(0, 0.78fr) minmax(360px, 1fr);
      gap: 44px;
      align-items: start;
    }

    .form-copy h2 {
      margin: 12px 0 18px;
      font-size: clamp(32px, 4.4vw, 56px);
      line-height: 1.12;
    }

    .form-copy p {
      color: rgba(255, 255, 255, 0.76);
      font-weight: 650;
    }

    .contact-meta {
      display: grid;
      gap: 10px;
      margin-top: 26px;
      color: rgba(255, 255, 255, 0.72);
      font-size: 14px;
      font-weight: 760;
    }

    .mock-form {
      display: grid;
      gap: 12px;
      padding: 24px;
      border-radius: var(--radius);
      background: #fff;
      color: var(--ink);
    }

    .form-note {
      margin: 0 0 4px;
      color: var(--sub);
      font-size: 13px;
      font-weight: 700;
      line-height: 1.6;
    }

    .form-status {
      display: none;
      margin: 2px 0 0;
      padding: 12px 14px;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 800;
      line-height: 1.55;
    }

    .form-status.is-visible {
      display: block;
    }

    .form-status.success {
      background: rgba(37, 93, 79, 0.1);
      color: var(--green);
    }

    .form-status.error {
      background: rgba(183, 91, 80, 0.12);
      color: #8d342b;
    }

    .checkbox-row {
      display: grid;
      grid-template-columns: 20px 1fr;
      gap: 10px;
      align-items: start;
      color: var(--sub);
      font-size: 13px;
      font-weight: 750;
      letter-spacing: 0;
      line-height: 1.6;
    }

    .checkbox-row input {
      width: 18px;
      min-height: 18px;
      margin: 3px 0 0;
      padding: 0;
    }

    .turnstile-slot {
      min-height: 65px;
    }

    .optional-fields {
      grid-column: 1 / -1;
      border: 1px solid var(--line);
      border-radius: 6px;
      padding: 12px;
      background: #faf9f5;
    }

    .optional-fields summary {
      cursor: pointer;
      color: var(--green);
      font-size: 13px;
      font-weight: 900;
    }

    .optional-fields .field-grid {
      margin-top: 12px;
    }

    .privacy-link {
      color: var(--green);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .req {
      color: var(--rose);
      font-weight: 900;
    }

    .hp-field {
      position: absolute;
      left: -10000px;
      width: 1px;
      height: 1px;
      overflow: hidden;
    }

    .field-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    label {
      display: grid;
      gap: 6px;
      color: var(--sub);
      font-size: 12px;
      font-weight: 900;
      letter-spacing: 0.04em;
    }

    input,
    select,
    textarea {
      width: 100%;
      min-height: 46px;
      border: 1px solid var(--line);
      border-radius: 6px;
      padding: 10px 12px;
      color: var(--ink);
      background: #fff;
      font: inherit;
      font-size: 15px;
    }

    textarea {
      min-height: 118px;
      resize: vertical;
    }

    .full {
      grid-column: 1 / -1;
    }

    .site-footer {
      padding: 36px 0;
      background: #111618;
      color: rgba(255, 255, 255, 0.62);
      font-size: 13px;
    }

    .footer-inner {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      width: min(1180px, calc(100% - 32px));
      margin: 0 auto;
    }

    .source-note {
      color: rgba(255, 255, 255, 0.54);
      max-width: 760px;
    }

    @media (max-width: 980px) {
      .nav {
        min-height: 62px;
      }

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

      .hero-inner,
      .section-head,
      .two-col,
      .spec-grid,
      .flavor-area,
      .form-layout {
        grid-template-columns: 1fr;
      }

      .hero-inner {
        min-height: auto;
        padding: 64px 0 42px;
      }

      .hero-card {
        max-width: 520px;
      }

      .proof-strip,
      .decision-list,
      .cards,
      .quality-grid,
      .fit-grid,
      .flow {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

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

      .image-stack {
        grid-template-rows: 452px;
      }

      .sticky-cta {
        display: block;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 30;
        padding: 12px 16px;
        background: rgba(255, 253, 247, 0.96);
        backdrop-filter: blur(12px);
        border-top: 1px solid var(--line);
        box-shadow: 0 -4px 20px rgba(31, 36, 40, 0.08);
      }

      .sticky-cta .button {
        width: 100%;
        min-height: 50px;
        font-size: 16px;
      }

      .site-footer {
        padding-bottom: 80px;
      }
    }

    @media (max-width: 620px) {
      .button {
        width: 100%;
      }

      .nav-links .button {
        display: none;
      }

      .nowrap {
        white-space: normal;
      }

      .hero {
        background:
          linear-gradient(180deg, rgba(232,231,231,0.98) 0%, rgba(232,231,231,0.9) 62%, rgba(232,231,231,0.42) 100%),
          url("assets/cotaru-3flavors.jpg") center bottom / cover no-repeat;
      }

      .section {
        padding: 24px 0;
      }

      .section .eyebrow {
        margin-bottom: 24px;
      }

      .section-head {
        margin-bottom: 22px;
      }

      .section-head .eyebrow {
        margin-bottom: 14px;
      }

      .section-title {
        font-size: clamp(22px, 6.2vw, 28px);
        line-height: 1.28;
      }

      .section-lead {
        margin-top: 12px;
        max-width: none;
      }

      #howto .howto-machine-frame {
        grid-template-columns: 1fr;
      }

      #howto .howto-machine-frame span:not(:last-child) {
        border-right: none;
        border-bottom: 1px solid var(--line);
      }

      h1 {
        font-size: 25px;
      }

      .proof-strip {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
      }

      .scene-strip {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
        margin-top: 12px;
      }

      .scene-strip figure {
        min-height: 92px;
      }

      .scene-strip figure:first-child {
        grid-row: auto;
        grid-column: 1 / -1;
        min-height: 128px;
      }

      .proof {
        min-height: 64px;
        padding: 10px;
      }

      .proof-icon {
        font-size: 18px;
        margin-bottom: 2px;
      }

      .proof strong {
        font-size: 17px;
      }

      .proof span {
        font-size: 11px;
        margin-top: 2px;
      }

      .mini-flow {
        padding: 10px 12px;
        gap: 4px;
        font-size: 12px;
      }

      .mini-flow-step {
        font-size: 12px;
      }

      .logo-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .logo-panel {
        aspect-ratio: auto;
        justify-content: flex-start;
        min-height: 80px;
        padding: 14px;
      }

      .logo-panel strong {
        font-size: 18px;
      }

      .cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
      }

      .decision-list,
      .fit-grid {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .machine-options {
        grid-template-columns: 1fr !important;
      }

      .decision-card,
      .decision-list div {
        min-height: auto;
        padding: 14px;
      }

      .fit-card {
        display: grid;
        grid-template-columns: 104px 1fr;
      }

      .fit-card img {
        height: 100%;
        min-height: 112px;
      }

      .feature, .quality-item {
        min-height: auto;
        padding: 14px;
      }

      .feature-icon {
        font-size: 22px;
        margin-bottom: 4px;
      }

      .feature h3, .quality-item h3 {
        font-size: 15px;
        margin: 6px 0 4px;
      }

      .feature p, .quality-item p {
        font-size: 12px;
        line-height: 1.5;
      }

      .quality-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
      }

      .wide-figure {
        height: 200px;
        margin-bottom: 16px;
      }

      .flow {
        gap: 8px;
      }

      .stage-flow-2,
      .stage-flow-3 {
        grid-template-columns: 1fr;
      }

      .flow-step {
        min-height: auto;
        padding: 14px;
      }

      .flow-step h3 {
        font-size: 15px;
        margin: 8px 0 4px;
      }

      .flow-step p {
        font-size: 12px;
      }

      .profit-metrics {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
      }

      .profit-metrics div {
        min-height: 82px;
        padding: 10px;
      }

      .profit-metrics strong {
        font-size: 18px;
      }

      .profit-metrics span {
        font-size: 10px;
        margin-top: 5px;
      }

      .spec-photo-grid {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .spec-photo-grid figure {
        min-height: 150px;
      }

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

      .flavor-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
      }

      .flavor-list span {
        min-height: 32px;
        font-size: 11px;
        padding: 4px 6px;
      }

      .photo-grid {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
      }

      .image-stack {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 220px;
        gap: 6px;
      }

      .spec-list li {
        grid-template-columns: 100px 1fr;
        gap: 8px;
        font-size: 13px;
        padding: 10px 0;
      }

      .stage-block {
        padding: 14px;
      }

      .stage-label {
        font-size: 12px;
        margin-bottom: 10px;
      }

      .faq-item summary {
        font-size: 15px;
      }

      .faq-item p {
        font-size: 13px;
        padding-right: 0;
      }

      .form-band {
        padding: 42px 0;
      }

      .form-copy h2 {
        font-size: 24px;
      }

      .hero-inner {
        padding: 42px 0 28px;
      }

      .hero-card {
        padding: 16px;
      }

      .card-photo {
        aspect-ratio: 620 / 605;
      }

      .footer-inner {
        flex-direction: column;
      }
    }

    .sticky-cta { display: none; }

    .cow-circles {
      list-style: none;
      padding: 0;
      margin: 0 0 18px;
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 10px;
    }
    .cow-circles li {
      aspect-ratio: 1 / 1;
      border-radius: 50%;
      background: #b8dde8;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 8px;
      font-size: 12px;
      font-weight: 700;
      color: #134653;
      line-height: 1.35;
    }
    .cow-circles li span {
      display: block;
    }
    @media (max-width: 720px) {
      .cow-circles {
        grid-template-columns: repeat(6, 1fr);
      }
      .cow-circles li {
        grid-column: span 2;
        font-size: 11px;
      }
      .cow-circles li:nth-child(4) {
        grid-column: 2 / span 2;
      }
    }

    /* ===== 開発: フレーバー showcase (v6.2 / 2026-06-02) ===== */
    .develop-lead {
      margin: 0 0 30px;
      color: var(--sub);
      font-size: clamp(14px, 1.9vw, 16px);
      font-weight: 650;
      line-height: 1.85;
      max-width: 760px;
    }

    .flavor-showcase {
      margin-top: 4px;
    }

    .flavor-stage-heading {
      display: flex;
      flex-wrap: nowrap;
      align-items: baseline;
      justify-content: center;
      gap: 14px;
      margin-bottom: 6px;
      text-align: center;
    }

    .flavor-stage-title {
      margin: 0;
      font-size: clamp(17px, 2.6vw, 24px);
      font-weight: 500;
      letter-spacing: 0.32em;
      color: var(--ink);
      line-height: 1.5;
    }

    .flavor-stage-count {
      margin: 0;
      font-size: 18px;
      font-weight: 800;
      color: var(--sub);
      letter-spacing: 0.08em;
    }

    .flavor-stage-count strong {
      font-size: 2.2em;
      line-height: 1;
      color: var(--green);
      font-weight: 900;
      margin-right: 2px;
    }

    .flavor-stage {
      position: relative;
      background: transparent;
      border: none;
      border-radius: 0;
      overflow: visible;
    }

    .flavor-stage-wave-wrap {
      position: relative;
      overflow: hidden;
      line-height: 0;
      height: clamp(160px, 30vw, 240px);
      -webkit-mask-image:
        linear-gradient(to bottom, transparent 0%, #000 18%, #000 68%, transparent 100%),
        linear-gradient(to right, transparent 0%, #000 7%, #000 93%, transparent 100%);
      mask-image:
        linear-gradient(to bottom, transparent 0%, #000 18%, #000 68%, transparent 100%),
        linear-gradient(to right, transparent 0%, #000 7%, #000 93%, transparent 100%);
      -webkit-mask-composite: source-in;
      mask-composite: intersect;
    }

    .flavor-stage-wave {
      display: block;
      width: 100%;
      height: 100%;
      margin: 0;
      object-fit: cover;
      object-position: center bottom;
      mix-blend-mode: multiply;
    }

    .flavor-wall-scroll {
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      bottom: auto;
      z-index: 2;
      height: 92%;
      display: flex;
      align-items: flex-start;
      overflow-x: auto;
      overflow-y: hidden;
      -webkit-overflow-scrolling: touch;
      scrollbar-width: thin;
      padding: 2px 8px 0;
    }

    .flavor-wall {
      display: flex;
      flex-wrap: nowrap;
      align-items: flex-start;
      justify-content: space-evenly;
      gap: 0;
      width: 100%;
      min-width: 100%;
      margin: 0;
      padding: 0 4px 4px;
      list-style: none;
    }

    .flavor-wall li {
      flex: 1 1 0;
      min-width: 0;
      align-self: flex-start;
      display: flex;
      justify-content: center;
      writing-mode: vertical-rl;
      text-orientation: mixed;
      font-size: clamp(10px, 1.1vw, 13px);
      font-weight: 600;
      letter-spacing: 0.1em;
      color: rgba(31, 36, 40, 0.82);
      white-space: nowrap;
      line-height: 1.35;
    }

    .flavor-wall li::before {
      content: "・";
      display: block;
      flex-shrink: 0;
      height: 1em;
      margin-bottom: 0.25em;
      font-size: 0.85em;
      line-height: 1;
      color: rgba(31, 36, 40, 0.4);
      text-align: center;
    }

    .flavor-showcase-note {
      margin: 12px 0 0;
      font-size: 12px;
      color: var(--muted);
      font-weight: 700;
      line-height: 1.6;
    }

    @media (max-width: 900px) {
      .flavor-wall li {
        font-size: 11px;
      }
    }

    @media (max-width: 620px) {
      .flavor-stage-heading {
        margin-bottom: 4px;
      }

      .flavor-stage-wave-wrap {
        height: clamp(140px, 42vw, 200px);
        -webkit-mask-image:
          linear-gradient(to bottom, transparent 0%, #000 16%, #000 64%, transparent 100%),
          linear-gradient(to right, transparent 0%, #000 5%, #000 95%, transparent 100%);
        mask-image:
          linear-gradient(to bottom, transparent 0%, #000 16%, #000 64%, transparent 100%),
          linear-gradient(to right, transparent 0%, #000 5%, #000 95%, transparent 100%);
        -webkit-mask-composite: source-in;
        mask-composite: intersect;
      }

      .flavor-wall-scroll {
        height: 96%;
        padding: 0 4px 0;
      }

      .flavor-stage-title {
        font-size: 15px;
        letter-spacing: 0.22em;
      }

      .flavor-wall {
        justify-content: flex-start;
        width: max-content;
        min-width: 100%;
        gap: 0;
        padding: 0 8px 4px;
      }

      .flavor-wall li {
        flex: 0 0 auto;
        min-width: auto;
        padding: 0 8px;
        font-size: 10px;
        letter-spacing: 0.06em;
        line-height: 1.25;
      }
    }