:root {
      color-scheme: light;
      --bg: #f6f4ee;
      --ink: #2f3433;
      --ink-soft: #5a625f;
      --charcoal: #242a2b;
      --navy: #314250;
      --line: rgba(49, 66, 80, 0.14);
      --line-strong: rgba(49, 66, 80, 0.24);
      --section-surface: rgba(255, 255, 255, 0.42);
      --shadow-soft: none;
      --shell: min(1180px, calc(100% - 32px));
      --font-sans: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
      --font-serif: "Shippori Mincho", "Yu Mincho", serif;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-width: 320px;
      color: var(--ink);
      background: var(--bg);
      font-family: var(--font-sans);
      line-height: 1.84;
      letter-spacing: 0.01em;
      overflow-x: hidden;
    }

    body::before {
      position: fixed;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(82, 96, 90, 0.018) 1px, transparent 1px),
        linear-gradient(180deg, rgba(82, 96, 90, 0.014) 1px, transparent 1px);
      background-size: 36px 36px;
      mask: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.55) 14%, rgba(0, 0, 0, 0.55) 88%, transparent);
      content: "";
      pointer-events: none;
      z-index: -1;
      opacity: 0.75;
    }

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

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

    h1,
    h2,
    h3,
    p,
    ul,
    li,
    ol {
      margin: 0;
    }

    ul,
    ol {
      padding-left: 1.2em;
    }

    .shell {
      width: var(--shell);
      margin: 0 auto;
    }

    .page {
      padding: 0 0 88px;
    }

    .hero {
      position: relative;
      display: flex;
      align-items: center;
      min-height: min(88vh, 840px);
      padding: clamp(28px, 4vw, 56px) 0 48px;
      overflow: hidden;
      background:
        linear-gradient(
          90deg,
          rgba(246, 244, 238, 0.99) 0%,
          rgba(246, 244, 238, 0.94) 38%,
          rgba(246, 244, 238, 0.66) 64%,
          rgba(246, 244, 238, 0.2) 100%
        ),
        url("../images/labo.jpeg");
      background-size: cover;
      background-position: center right;
      background-repeat: no-repeat;
      isolation: isolate;
    }

    .hero::before {
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(49, 66, 80, 0.03) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49, 66, 80, 0.024) 1px, transparent 1px),
        radial-gradient(circle at 78% 42%, rgba(255, 255, 255, 0.34), transparent 36%);
      background-size: 48px 48px, 48px 48px, auto;
      content: "";
      z-index: 0;
      pointer-events: none;
    }

    .hero .shell {
      position: relative;
      z-index: 1;
      display: grid;
      min-height: inherit;
      align-content: center;
      gap: 36px;
    }

    .hero__grid {
      display: grid;
      grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.82fr);
      gap: clamp(36px, 5vw, 72px);
      align-items: end;
      width: 100%;
    }

    .hero__content {
      max-width: 640px;
      padding: 0;
      border: none;
      background: none;
      box-shadow: none;
      backdrop-filter: none;
    }

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #3b4a45;
      font-size: 0.77rem;
      font-weight: 700;
      letter-spacing: 0.18em;
      text-transform: uppercase;
    }

    .section-label::before {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #c7b07c;
      content: "";
    }

    .hero__eyebrow {
      display: grid;
      gap: 8px;
      margin-bottom: 24px;
      color: rgba(49, 66, 80, 0.7);
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.18em;
      text-transform: uppercase;
    }

    .hero__eyebrow span:first-child {
      color: var(--charcoal);
      font-family: var(--font-serif);
      font-size: 0.86rem;
      letter-spacing: 0.14em;
    }

    .hero__eyebrow span:last-child {
      max-width: 34ch;
      line-height: 1.7;
    }

    h1,
    h2,
    h3 {
      color: var(--charcoal);
      font-family: var(--font-serif);
      letter-spacing: 0.02em;
    }

    .hero h1 {
      max-width: none;
      font-size: clamp(3.4rem, 6.2vw, 5.6rem);
      line-height: 1.08;
      letter-spacing: 0.04em;
      text-wrap: balance;
    }

    .hero__title-sub {
      display: inline-block;
      font-size: 0.92em;
      letter-spacing: 0.04em;
    }

    .hero__lead {
      margin-top: 24px;
      max-width: none;
      color: var(--navy);
      font-size: clamp(1.3rem, 2.4vw, 1.7rem);
      line-height: 1.86;
      white-space: nowrap;
      text-wrap: balance;
    }

    .hero__note {
      margin-top: 20px;
      max-width: none;
      color: var(--ink-soft);
      font-size: 0.98rem;
      line-height: 1.84;
      white-space: nowrap;
    }

    .hero__note br {
      display: block;
    }

    .button-row {
      display: flex;
      flex-wrap: nowrap;
      gap: 0;
      margin-top: 28px;
    }

    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 26px;
      border-radius: 4px;
      border: 1px solid var(--navy);
      color: var(--navy);
      font-size: 0.96rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, opacity 180ms ease;
    }

    .button:hover,
    .button:focus-visible {
      opacity: 0.86;
      outline: none;
    }

    .button--primary {
      background: var(--navy);
      border-color: var(--navy);
      color: #ffffff;
    }

    .hero__aside {
      position: relative;
      justify-self: end;
      width: min(100%, 400px);
      padding-left: clamp(18px, 2vw, 26px);
      transform: translateY(12px);
      opacity: 0.96;
    }

    .hero__aside::before {
      position: absolute;
      inset: -28px -18px -28px 0;
      border-left: 1px solid rgba(49, 66, 80, 0.12);
      background:
        linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.32)),
        linear-gradient(180deg, rgba(49, 66, 80, 0.015) 1px, transparent 1px);
      background-size: auto, 100% 28px;
      content: "";
      opacity: 0.88;
      pointer-events: none;
    }

    .hero__review {
      position: relative;
      overflow: hidden;
      padding: 26px 26px 20px;
      border: 1px solid rgba(49, 66, 80, 0.16);
      background: rgba(255, 255, 255, 0.54);
      backdrop-filter: blur(10px);
    }

    .hero__review::before {
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(49, 66, 80, 0.028) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49, 66, 80, 0.022) 1px, transparent 1px);
      background-size: 28px 28px;
      content: "";
      opacity: 0.42;
      pointer-events: none;
    }

    .hero__review::after {
      position: absolute;
      inset: -120% 0 auto;
      height: 120%;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.28) 48%, rgba(255, 255, 255, 0) 100%);
      content: "";
      pointer-events: none;
      animation: reviewScan 6.4s linear infinite;
      opacity: 0.7;
    }

    .hero__review > * {
      position: relative;
      z-index: 1;
    }

    .hero__review-label {
      display: block;
      margin-bottom: 18px;
      color: rgba(49, 66, 80, 0.64);
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.18em;
      text-transform: uppercase;
    }

    .hero__review-list {
      counter-reset: review;
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .hero__review-list li {
      display: grid;
      grid-template-columns: 42px minmax(0, 1fr);
      gap: 14px;
      align-items: center;
      padding: 16px 0;
      border-top: 1px solid rgba(49, 66, 80, 0.12);
      color: var(--charcoal);
      font-family: var(--font-serif);
      font-size: 1.1rem;
      line-height: 1.35;
      letter-spacing: 0.05em;
    }

    .hero__review-list li:first-child {
      border-top: 1px solid rgba(49, 66, 80, 0.18);
    }

    .hero__review-list li::before {
      counter-increment: review;
      color: rgba(49, 66, 80, 0.56);
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.16em;
      content: counter(review, decimal-leading-zero);
    }

    .hero__index {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      border-top: 1px solid rgba(49, 66, 80, 0.16);
      border-bottom: 1px solid rgba(49, 66, 80, 0.16);
    }

    .hero__index a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 12px 10px;
      border-left: 1px solid rgba(49, 66, 80, 0.1);
      color: rgba(49, 66, 80, 0.62);
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-align: center;
      opacity: 0.72;
      transition: color 180ms ease, background-color 180ms ease, opacity 180ms ease;
    }

    .hero__index a:first-child {
      border-left: none;
    }

    .hero__index a:hover,
    .hero__index a:focus-visible {
      color: var(--navy);
      background: rgba(255, 255, 255, 0.34);
      opacity: 1;
      outline: none;
    }

    .section {
      position: relative;
      z-index: 0;
      padding-top: 88px;
      padding-bottom: 72px;
    }

    .section::before {
      border-radius: 0;
    }

    .section::after {
      position: absolute;
      top: 42px;
      left: 0;
      width: min(220px, 30vw);
      height: 1px;
      background: linear-gradient(90deg, rgba(49,66,80,0.42), rgba(199,176,124,0.34), transparent);
      content: "";
      pointer-events: none;
      z-index: 1;
    }

    .js .section {
      opacity: 0;
      transform: translateY(26px) scale(0.992);
      transition:
        opacity 820ms ease,
        transform 820ms cubic-bezier(0.22, 1, 0.36, 1);
    }

    .js .section.is-visible {
      opacity: 1;
      transform: translateY(0) scale(1);
    }

    .js .shell > .section:nth-of-type(2) {
      transition-delay: 80ms;
    }

    .js .shell > .section:nth-of-type(3) {
      transition-delay: 140ms;
    }

    .js .shell > .section:nth-of-type(4) {
      transition-delay: 200ms;
    }

    .js .shell > .section:nth-of-type(5) {
      transition-delay: 260ms;
    }

    .section[class*="section-tone-"]::before {
      position: absolute;
      top: 10px;
      right: calc(50% - 50vw);
      bottom: 6px;
      left: calc(50% - 50vw);
      background:
        radial-gradient(circle at 12% 18%, rgba(199,176,124,0.16), transparent 26%),
        radial-gradient(circle at 88% 12%, rgba(49,66,80,0.10), transparent 30%),
        linear-gradient(135deg, rgba(255,255,255,0.54), rgba(246,244,238,0.22) 48%, rgba(49,66,80,0.035)),
        linear-gradient(90deg, rgba(49,66,80,0.026) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.018) 1px, transparent 1px);
      background-size: auto, auto, auto, 46px 46px, 46px 46px;
      content: "";
      pointer-events: none;
      z-index: -2;
    }

    .section-tone-product::before {
      background:
        linear-gradient(180deg, rgba(255,255,255,0.88), rgba(249,248,245,0.76)),
        linear-gradient(90deg, rgba(49,66,80,0.014) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.01) 1px, transparent 1px);
      background-size: auto, 42px 42px, 42px 42px;
    }

    .section-tone-session::before {
      background:
        linear-gradient(180deg, rgba(248,245,239,0.82), rgba(255,252,247,0.72)),
        linear-gradient(90deg, rgba(123,109,83,0.01) 1px, transparent 1px),
        linear-gradient(180deg, rgba(123,109,83,0.008) 1px, transparent 1px);
      background-size: auto, 52px 52px, 52px 52px;
    }

    .section-tone-trust::before {
      background:
        linear-gradient(180deg, rgba(247,245,240,0.78), rgba(255,255,255,0.72)),
        linear-gradient(90deg, rgba(49,66,80,0.016) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.012) 1px, transparent 1px);
      background-size: auto, 40px 40px, 40px 40px;
    }

    .section-tone-contact::before {
      background:
        linear-gradient(180deg, rgba(250,248,244,0.82), rgba(255,255,255,0.74)),
        linear-gradient(90deg, rgba(49,66,80,0.01) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.008) 1px, transparent 1px);
      background-size: auto, 52px 52px, 52px 52px;
    }

    #concern {
      padding-top: 96px;
      padding-bottom: 84px;
    }

    #trust {
      padding-top: 80px;
      padding-bottom: 64px;
    }

    #contact {
      padding-top: 86px;
      padding-bottom: 72px;
    }

    #concern .section-head {
      max-width: none;
      margin-bottom: 0;
    }

    .product-head-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.72fr);
      gap: 52px;
      align-items: start;
    }

    .product-head-copy {
      max-width: 620px;
    }

    .analysis-visual {
      position: relative;
      display: grid;
      justify-self: end;
      align-content: start;
      gap: 18px;
      width: min(100%, 500px);
      min-height: 340px;
      padding: 26px 26px 18px;
      border: 1px solid rgba(49,66,80,0.11);
      background:
        linear-gradient(180deg, rgba(255,255,255,0.88), rgba(248,246,241,0.74)),
        linear-gradient(90deg, rgba(49,66,80,0.008) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.007) 1px, transparent 1px);
      background-size: auto, 40px 40px, 40px 40px;
      backdrop-filter: blur(10px);
      box-shadow:
        0 12px 24px rgba(49,66,80,0.04),
        0 1px 0 rgba(255,255,255,0.76) inset;
      overflow: hidden;
      isolation: isolate;
    }

    .analysis-visual::before {
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(255,255,255,0.18), transparent 28%, transparent 80%, rgba(49,66,80,0.025));
      content: "";
      pointer-events: none;
      z-index: 0;
    }

    .analysis-visual > * {
      position: relative;
      z-index: 1;
    }

    .analysis-visual__head {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 18px;
      align-items: start;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(49,66,80,0.09);
    }

    .analysis-visual__title {
      display: grid;
      gap: 4px;
    }

    .analysis-visual__title span {
      color: rgba(49,66,80,0.78);
      font-size: 0.74rem;
      font-weight: 700;
      letter-spacing: 0.18em;
      text-transform: uppercase;
    }

    .analysis-visual__head small {
      color: rgba(49,66,80,0.42);
      font-size: 0.72rem;
      font-weight: 500;
      letter-spacing: 0.08em;
    }

    .analysis-visual__sample {
      display: grid;
      gap: 4px;
      justify-items: end;
      color: rgba(49,66,80,0.36);
      font-size: 0.62rem;
      font-weight: 600;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      white-space: nowrap;
    }

    .analysis-visual__sample span {
      color: inherit;
      font-size: inherit;
      font-weight: inherit;
      letter-spacing: inherit;
    }

    .analysis-canvas {
      width: 100%;
      height: auto;
      aspect-ratio: 10 / 7;
      display: block;
      background:
        linear-gradient(180deg, rgba(255,255,255,0.36), rgba(255,255,255,0.1)),
        linear-gradient(90deg, rgba(49,66,80,0.005) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.005) 1px, transparent 1px),
        rgba(255,255,255,0.04);
      background-size: auto, 28px 28px, 28px 28px, auto;
      border: 1px solid rgba(49,66,80,0.07);
      box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.72),
        inset 0 -12px 22px rgba(49,66,80,0.014);
    }

    .analysis-visual__meta {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      padding-top: 12px;
      border-top: 1px solid rgba(49,66,80,0.09);
      color: rgba(49,66,80,0.38);
      font-size: 0.62rem;
      font-weight: 700;
      letter-spacing: 0.18em;
      text-transform: uppercase;
    }

    .analysis-visual__meta span:nth-child(2) {
      text-align: center;
    }

    .analysis-visual__meta span:last-child {
      text-align: right;
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 28px;
    }

    .section-label {
      margin-bottom: 14px;
    }

    .section-head h2 {
      font-size: clamp(2rem, 3.4vw, 3rem);
      color: #252a2d;
      font-weight: 600;
      line-height: 1.26;
      letter-spacing: 0.045em;
      text-wrap: balance;
    }

    .section-head p {
      margin-top: 14px;
      color: #596268;
      font-size: 1rem;
      line-height: 1.9;
    }

    .section-tone-trust .section-head {
      padding: 0 0 22px;
      border-bottom: 1px solid rgba(49, 66, 80, 0.16);
      background: none;
      border-radius: 0;
      backdrop-filter: none;
    }

    .trust-document {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
      gap: 56px;
      align-items: start;
      padding-top: 8px;
    }

    .trust-document__content {
      max-width: 720px;
    }

    .trust-document__content h2 {
      margin-top: 14px;
      font-size: clamp(2.2rem, 3.5vw, 3.2rem);
      line-height: 1.22;
    }

    .trust-document__content p {
      margin-top: 16px;
      color: rgba(49,66,80,0.72);
      font-size: 1rem;
      line-height: 1.95;
    }

    .trust-document__record {
      padding-left: 4px;
      border-top: 1px solid rgba(49,66,80,0.18);
      border-bottom: 1px solid rgba(49,66,80,0.18);
    }

    .trust-document__record div {
      display: grid;
      grid-template-columns: 110px 1fr;
      gap: 20px;
      padding: 22px 20px;
    }

    .trust-document__record div + div {
      border-top: 1px solid rgba(49,66,80,0.12);
    }

    .trust-document__record span {
      color: rgba(49,66,80,0.5);
      font-size: 0.68rem;
      font-weight: 700;
      letter-spacing: 0.16em;
    }

    .trust-document__record p {
      color: var(--charcoal);
      font-family: var(--font-serif);
      font-size: 1.08rem;
      line-height: 1.55;
    }

    .product-classification {
      margin: 38px 0 0;
      padding: 0;
      border: none;
      border-radius: 0;
      background: none;
      box-shadow: none;
    }

    .section-tone-product .product-classification {
      margin-top: 34px;
      padding-top: 10px;
    }

    .product-classification__head {
      display: block;
    }

    .product-classification__head span {
      color: var(--charcoal);
      font-family: var(--font-serif);
      font-size: 1.05rem;
      letter-spacing: 0.04em;
    }

    .product-index {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      padding: 18px 0;
      border-top: 1px solid rgba(49,66,80,0.14);
      border-bottom: 1px solid rgba(49,66,80,0.14);
      margin-top: 28px;
    }

    .product-index span {
      position: relative;
      color: var(--charcoal);
      font-family: var(--font-serif);
      font-size: 1.05rem;
      letter-spacing: 0.06em;
      cursor: pointer;
      transition: opacity 180ms ease;
    }

    .product-index span::after {
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 0%;
      height: 1px;
      background: var(--navy);
      content: "";
      transition: width 220ms ease;
    }

    .product-index span:hover::after {
      width: 100%;
    }

    .product-index span:hover {
      opacity: 0.6;
    }

    .product-index__note {
      margin-top: 14px;
      color: rgba(49,66,80,0.6);
      font-size: 0.9rem;
      line-height: 1.8;
    }

    .research-flow {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 42px minmax(0, 1fr) 42px minmax(0, 1fr);
      gap: 0;
      margin-top: 54px;
      border-top: 1px solid rgba(49,66,80,0.16);
      border-bottom: 1px solid rgba(49,66,80,0.16);
      background:
        linear-gradient(90deg, rgba(49,66,80,0.018) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.014) 1px, transparent 1px),
        rgba(255,255,255,0.34);
      background-size: 32px 32px;
    }

    .section-tone-product .product-index,
    .section-tone-product .research-flow,
    .section-tone-product .research-flow__note {
      position: relative;
      z-index: 0;
    }

    .section-tone-product .product-index,
    .section-tone-product .research-flow {
      box-shadow: none;
    }

    .section-tone-product .research-flow {
      margin-top: 48px;
    }

    .research-flow__column {
      padding: 28px 24px;
      background: rgba(255,255,255,0.38);
      backdrop-filter: blur(8px);
      transition: background-color 220ms ease, border-color 220ms ease;
    }

    .research-flow__column:hover,
    .research-flow__column:focus-within {
      background: rgba(255,255,255,0.64);
    }

    .research-flow__column + .research-flow__arrow + .research-flow__column {
      border-left: 1px solid rgba(49,66,80,0.12);
    }

    .research-flow__label {
      display: block;
      margin-bottom: 16px;
      color: rgba(49,66,80,0.52);
      font-size: 0.68rem;
      font-weight: 700;
      letter-spacing: 0.16em;
    }

    .research-flow__column:hover .research-flow__label,
    .research-flow__column:focus-within .research-flow__label {
      color: var(--navy);
    }

    .research-flow h3 {
      margin-bottom: 18px;
      font-size: 1.24rem;
      line-height: 1.35;
    }

    .research-flow ul {
      display: grid;
      gap: 10px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .research-flow li {
      padding: 10px 0;
      border-top: 1px solid rgba(49,66,80,0.1);
      color: var(--charcoal);
      font-size: 0.96rem;
      letter-spacing: 0.04em;
    }

    .research-flow__arrow {
      position: relative;
      min-height: 100%;
    }

    .research-flow__arrow::before {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 26px;
      height: 1px;
      background: rgba(49,66,80,0.42);
      content: "";
      transform: translate(-50%, -50%);
    }

    .research-flow__arrow::after {
      position: absolute;
      top: 50%;
      left: calc(50% + 9px);
      width: 7px;
      height: 7px;
      border-top: 1px solid rgba(49,66,80,0.42);
      border-right: 1px solid rgba(49,66,80,0.42);
      content: "";
      transform: translateY(-50%) rotate(45deg);
    }

    .research-flow__note {
      margin-top: 18px;
      color: rgba(49,66,80,0.62);
      font-size: 0.92rem;
      line-height: 1.8;
    }

    .session-layout {
      display: grid;
      grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
      gap: 48px;
      align-items: center;
      padding: 0;
    }

    .section-tone-session {
      padding-top: 90px;
      padding-bottom: 76px;
    }

    .section-tone-session .session-layout {
      gap: 60px;
      padding: 8px 0 0;
    }

    .session-layout__visual {
      position: relative;
      display: grid;
      gap: 0;
      margin: 0;
      border: 1px solid rgba(49,66,80,0.14);
      background: #f7f5ef;
      overflow: hidden;
      isolation: isolate;
      box-shadow:
        0 22px 60px rgba(49,66,80,0.10),
        0 1px 0 rgba(255,255,255,0.7) inset;
      transform: translateZ(0);
    }

    .section-tone-session .session-layout__visual {
      margin: 0;
      box-shadow:
        0 18px 42px rgba(97,86,63,0.08),
        0 1px 0 rgba(255,255,255,0.7) inset;
    }

    .session-layout__visual::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(246,244,238,0.18), rgba(246,244,238,0.55)),
        linear-gradient(90deg, rgba(49,66,80,0.05), transparent 60%);
      mix-blend-mode: multiply;
      pointer-events: none;
    }

    .session-layout__visual img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      filter:
        grayscale(12%)
        contrast(0.92)
        brightness(1.02)
        blur(0.2px);
    }

    .session-layout__caption {
      padding: 10px 14px 0;
      color: rgba(49,66,80,0.52);
      font-size: 0.68rem;
      letter-spacing: 0.14em;
      text-transform: uppercase;
    }

    .session-layout__content {
      padding: 12px 0;
    }

    .section-tone-session .session-layout__content {
      padding: 18px 0;
    }

    .session-layout__sub {
      display: block;
      margin: 12px 0 16px;
      color: rgba(49,66,80,0.52);
      font-size: 0.68rem;
      font-weight: 700;
      letter-spacing: 0.16em;
    }

    .session-layout__content h2 {
      font-size: clamp(2.2rem, 3.6vw, 3.4rem);
      line-height: 1.18;
    }

    .session-layout__content p {
      max-width: 56ch;
      margin-top: 16px;
      color: rgba(49,66,80,0.72);
      font-size: 1rem;
      line-height: 1.9;
    }

    .session-menu {
      display: block;
      margin-top: 42px;
      border-top: 1px solid rgba(49,66,80,0.16);
      border-bottom: 1px solid rgba(49,66,80,0.16);
    }

    .section-tone-session .session-menu {
      margin-top: 46px;
      background:
        linear-gradient(180deg, rgba(255,255,255,0.5), rgba(248,244,236,0.28)),
        linear-gradient(90deg, rgba(123,109,83,0.01) 1px, transparent 1px),
        linear-gradient(180deg, rgba(123,109,83,0.008) 1px, transparent 1px);
      background-size: auto, 34px 34px, 34px 34px;
    }

    .session-menu div {
      display: grid;
      grid-template-columns: 56px minmax(0, 1fr);
      gap: 0 20px;
      align-items: start;
      padding: 22px 20px;
      background: none;
      box-shadow: none;
    }

    .section-tone-session .session-menu div {
      padding: 24px 22px;
    }

    .session-menu div + div {
      border-top: 1px solid rgba(49,66,80,0.12);
    }

    .session-menu span {
      display: block;
      grid-column: 1;
      grid-row: 1 / span 2;
      margin-bottom: 0;
      color: rgba(49,66,80,0.48);
      font-family: var(--font-serif);
      font-size: 0.9rem;
      letter-spacing: 0.08em;
    }

    .session-menu h3 {
      grid-column: 2;
      font-size: 1.08rem;
      line-height: 1.45;
    }

    .session-menu p {
      grid-column: 2;
      margin-top: 10px;
      color: rgba(49,66,80,0.65);
      font-size: 0.92rem;
      line-height: 1.75;
    }

    .contact-document {
      padding: 42px 0 0;
      border-top: 1px solid rgba(49,66,80,0.18);
    }

    .section-tone-trust .trust-document__content {
      position: relative;
      padding-left: 22px;
    }

    .section-tone-trust .trust-document__content::before {
      position: absolute;
      top: 12px;
      bottom: 14px;
      left: 0;
      width: 1px;
      background: linear-gradient(180deg, rgba(49,66,80,0.5), rgba(199,176,124,0.28), transparent);
      content: "";
    }

    .section-tone-trust .trust-document__record {
      border-left: 1px solid rgba(49,66,80,0.12);
      box-shadow: inset 1px 0 0 rgba(255,255,255,0.42);
    }

    .section-tone-contact .contact-document {
      max-width: 760px;
      padding-top: 56px;
    }

    .contact-document h2 {
      margin-top: 14px;
      font-size: clamp(2.2rem, 3.4vw, 3.2rem);
      line-height: 1.22;
    }

    .contact-document p {
      max-width: 760px;
      margin-top: 18px;
      color: rgba(49,66,80,0.72);
      font-size: 1rem;
      line-height: 1.95;
    }

    .contact-document__scope {
      display: flex;
      flex-wrap: wrap;
      gap: 0;
      margin-top: 28px;
      border-top: 1px solid rgba(49,66,80,0.14);
      border-bottom: 1px solid rgba(49,66,80,0.14);
    }

    .section-tone-contact .contact-document__scope {
      margin-top: 32px;
      background:
        linear-gradient(180deg, rgba(255,255,255,0.62), rgba(248,245,238,0.34)),
        linear-gradient(90deg, rgba(49,66,80,0.01) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.008) 1px, transparent 1px);
      background-size: auto, 34px 34px, 34px 34px;
    }

    .research-flow,
    .session-menu,
    .trust-document__record,
    .contact-document__scope {
      background:
        linear-gradient(180deg, rgba(255,255,255,0.54), rgba(255,255,255,0.28)),
        linear-gradient(90deg, rgba(49,66,80,0.012) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.01) 1px, transparent 1px);
      background-size: auto, 28px 28px, 28px 28px;
      backdrop-filter: blur(8px);
    }

    .contact-document__scope span {
      padding: 14px 24px;
      color: rgba(49,66,80,0.7);
      font-size: 0.9rem;
      letter-spacing: 0.06em;
    }

    .contact-document__scope span + span {
      border-left: 1px solid rgba(49,66,80,0.12);
    }

    .contact-document .button {
      margin-top: 30px;
    }

    .section-tone-contact .contact-document .button {
      margin-top: 24px;
    }

    .page-footer {
      width: var(--shell);
      margin: 46px auto 0;
      padding-top: 22px;
      border-top: 1px solid rgba(51, 68, 83, 0.12);
      color: var(--ink-soft);
      font-size: 0.86rem;
      line-height: 1.78;
    }

    .page-footer .footer-links {
      margin-top: 0;
    }

    @keyframes reviewScan {
      to {
        transform: translateY(220%);
      }
    }

    @media (max-width: 1100px) {
      .hero__grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .hero__aside {
        justify-self: stretch;
        width: 100%;
        padding-left: 0;
        transform: none;
        opacity: 1;
      }

      .hero__aside::before {
        inset: 0;
        border-left: none;
        border-top: 1px solid rgba(49, 66, 80, 0.12);
      }

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

      .hero__index a:nth-child(3n + 1) {
        border-left: none;
      }

      .hero__index a:nth-child(4),
      .hero__index a:nth-child(5) {
        border-top: 1px solid rgba(49, 66, 80, 0.12);
      }

      .product-index {
        gap: 14px 18px;
      }

      .product-head-layout {
        gap: 34px;
        grid-template-columns: minmax(0, 1fr) minmax(280px, 0.68fr);
      }

      .analysis-visual {
        min-height: 312px;
      }

    }

    @media (max-width: 760px) {
      .page {
        padding-top: 0;
      }

      .section {
        padding-top: 76px;
        padding-bottom: 52px;
      }

      #concern {
        padding-top: 96px;
        padding-bottom: 64px;
      }

      .section-tone-session {
        padding-top: 76px;
        padding-bottom: 58px;
      }

      #contact {
        padding-top: 74px;
        padding-bottom: 56px;
      }

      .section[class*="section-tone-"]::before {
        top: 14px;
        bottom: 8px;
      }

      .hero {
        min-height: auto;
        padding: 28px 0 32px;
      }

      .hero .shell {
        min-height: auto;
        align-items: flex-start;
        gap: 28px;
      }

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

      .hero__content {
        width: 100%;
        max-width: none;
        padding: 0;
      }

      .hero__eyebrow {
        gap: 6px;
        margin-bottom: 18px;
      }

      .hero__lead {
        max-width: none;
        font-size: 1.18rem;
      }

      .hero__aside::before {
        inset: -14px 0 0;
      }

      .hero__review {
        padding: 22px 18px 18px;
      }

      .hero__review-list li {
        grid-template-columns: 34px minmax(0, 1fr);
        gap: 12px;
        font-size: 1rem;
      }

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

      .hero__index a {
        min-height: 44px;
        padding: 12px 8px;
        border-left: none;
      }

      .hero__index a:nth-child(n + 3) {
        border-top: 1px solid rgba(49, 66, 80, 0.12);
      }

      .hero__index a:last-child {
        grid-column: 1 / -1;
      }

      .product-classification {
        margin-top: 24px;
      }

      .product-classification__head {
        display: block;
      }

      .product-index {
        gap: 12px 14px;
      }

      .product-index span {
        font-size: 0.98rem;
      }

      #concern .section-head {
        max-width: 860px;
      }

      .product-head-layout {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .product-head-copy {
        max-width: none;
      }

      .analysis-visual {
        justify-self: stretch;
        width: 100%;
        min-height: 286px;
        padding: 18px 16px 12px;
      }

      .analysis-visual__head {
        grid-template-columns: 1fr;
        gap: 10px;
      }

      .analysis-visual__sample {
        justify-items: start;
      }

      .research-flow {
        grid-template-columns: 1fr;
      }

      .research-flow__column {
        padding: 24px 18px;
        border-left: none;
        border-bottom: 1px solid rgba(49,66,80,0.12);
      }

      .research-flow__column:last-child {
        border-bottom: none;
      }

      .research-flow__arrow {
        display: none;
      }

      .trust-document {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .trust-document__record div {
        grid-template-columns: 1fr;
        gap: 6px;
      }

      .session-layout {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .section-tone-session .session-layout {
        gap: 32px;
      }

      .session-layout__visual img {
        aspect-ratio: 16 / 10;
      }

      .session-menu {
        margin-top: 32px;
      }

      .session-menu div + div {
        border-top: 1px solid rgba(49,66,80,0.12);
      }

      .contact-document__scope {
        display: grid;
        grid-template-columns: 1fr;
      }

      .contact-document__scope span + span {
        border-left: none;
        border-top: 1px solid rgba(49,66,80,0.12);
      }

      .button {
        width: 100%;
      }

    }

    @media (prefers-reduced-motion: reduce) {
      .hero__review::after,
      .js .section {
        animation: none;
        opacity: 1;
        transform: none;
        transition: none;
      }
    }