/* Extracted from index.html <style> */
    :root {
      --color-bg: #fcfcfc;
      --color-card: #ffffff;
      --color-primary: #24277d;
      --color-primary-dark: #1a005a;
      --color-primary-mid: #2f4fa0;
      --color-accent: #3a77c4;
      --color-soft: #f2f7fb;
      --color-text-heading: #323232;
      --color-text-body: #595959;
      --color-text-light: #6b6b6b;
      --color-border: #e9e7e7;
      --radius: 8px;
      --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-padding-top: 5.75rem;
    }

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

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;
      color: var(--color-text-body);
      background: var(--color-bg);
      line-height: 1.7;
      font-feature-settings: "palt" 1, "pnum" 1, "kern" 1;
    }

    .scroll-progress {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      z-index: 60;
      transform-origin: left center;
      transform: scaleX(var(--scroll-progress, 0));
      pointer-events: none;
      background: linear-gradient(90deg, var(--color-primary-mid), var(--color-accent));
    }

    a {
      color: inherit;
    }

    .container {
      max-width: 1120px;
      margin: 0 auto;
      padding: 0 1rem;
    }

    .header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(255, 255, 255, 0.96);
      border-bottom: 1px solid var(--color-border);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 0.95rem 0;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      text-decoration: none;
    }

    .brand-logo {
      display: block;
      width: clamp(150px, 16vw, 220px);
      height: auto;
    }

    .nav {
      display: flex;
      align-items: center;
      gap: 0.35rem;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .nav a.nav-anchor {
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--color-primary-mid);
    }

    .nav a.nav-anchor:hover {
      background: rgba(47, 79, 160, 0.1);
    }

    .nav a.nav-external .nav-sup {
      font-weight: 800;
      color: var(--color-accent);
    }

    .nav a {
      color: var(--color-text-heading);
      font-size: 0.92rem;
      font-weight: 700;
      text-decoration: none;
      padding: 0.55rem 0.8rem;
      border-radius: var(--radius);
    }

    .nav a:hover {
      background: rgba(58, 119, 196, 0.1);
    }

    .hero-shell {
      margin: 0;
      background:
        radial-gradient(1180px 500px at 50% -6%, rgba(36, 39, 125, 0.09), transparent 62%),
        linear-gradient(180deg, var(--color-soft) 0%, rgba(252, 252, 252, 0.97) 48%, var(--color-bg) 100%);
      border-bottom: 1px solid rgba(233, 231, 231, 0.85);
    }

    .hero {
      max-width: 920px;
      margin: 0 auto;
      padding: 3.4rem 0 2.4rem;
      text-align: center;
    }

    .hero-logo {
      display: block;
      width: min(460px, 82vw);
      height: auto;
      margin: 0 auto 1.45rem;
    }

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

    h1 {
      margin-bottom: 1.35rem;
      color: var(--color-text-heading);
      font-size: clamp(2.2rem, 5vw, 4.4rem);
      line-height: 1.18;
      letter-spacing: 0;
    }

    .hero-copy {
      max-width: 760px;
      margin: 0 auto;
      color: var(--color-text-body);
      font-size: 1.12rem;
      line-height: 1.9;
    }

    .cta-row {
      display: flex;
      justify-content: center;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.85rem;
      margin-top: 1.8rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.45rem;
      min-height: 3rem;
      padding: 0.78rem 1.35rem;
      border: 2px solid transparent;
      border-radius: var(--radius);
      font-weight: 800;
      text-decoration: none;
      transition:
        background 0.22s ease,
        color 0.22s ease,
        border-color 0.22s ease,
        transform 0.22s ease,
        box-shadow 0.22s ease;
    }

    .btn-icon {
      flex-shrink: 0;
      width: 1.1rem;
      height: 1.1rem;
    }

    .btn-primary {
      background: var(--color-primary);
      color: #fff;
      box-shadow: 0 12px 32px rgba(36, 39, 125, 0.28);
    }

    .btn-primary:hover {
      background: var(--color-primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 16px 36px rgba(36, 39, 125, 0.32);
    }

    .btn-secondary {
      background: transparent;
      border-color: var(--color-primary);
      color: var(--color-primary);
    }

    .btn-secondary:hover {
      background: var(--color-primary);
      color: #fff;
      transform: translateY(-1px);
    }

    .hero .btn-secondary,
    #how-to .cta-row .btn-secondary {
      border-color: rgba(58, 119, 196, 0.52);
      background: rgba(255, 255, 255, 0.9);
      border-left: 4px solid var(--color-accent);
      box-shadow: 0 12px 30px rgba(58, 119, 196, 0.16);
    }

    .hero .btn-secondary:hover,
    #how-to .cta-row .btn-secondary:hover {
      background: var(--color-primary);
      color: #fff;
      border-left-color: rgba(255, 255, 255, 0.5);
    }

    @media (hover: none), (prefers-reduced-motion: reduce) {
      .btn-primary:hover,
      .btn-secondary:hover {
        transform: none;
      }
    }

    .section {
      padding: 3.4rem 0;
      border-top: 1px solid var(--color-border);
    }

    .container > section.section:first-of-type {
      border-top: none;
    }

    .section.section--band-soft {
      margin-left: calc(50% - 50vw);
      margin-right: calc(50% - 50vw);
      padding: 3.4rem calc(50vw - 50%);
      background:
        radial-gradient(980px 460px at 18% 0%, rgba(58, 119, 196, 0.1), transparent 58%),
        linear-gradient(180deg, rgba(242, 247, 251, 0.95), rgba(252, 252, 252, 0.99));
      box-sizing: border-box;
    }

    .btn-primary .btn-icon {
      color: #fff;
    }

    #for-companies.section.section-companies-tint {
      margin-left: calc(50% - 50vw);
      margin-right: calc(50% - 50vw);
      margin-bottom: 0;
      margin-top: 0;
      padding: 3.5rem calc(50vw - 50%) 4rem;
      border-top: none;
      box-shadow: inset 0 1px 0 rgba(233, 231, 231, 0.9);
      background:
        radial-gradient(800px 400px at 80% -10%, rgba(58, 119, 196, 0.12), transparent 55%),
        linear-gradient(135deg, rgba(36, 39, 125, 0.07), rgba(58, 119, 196, 0.1));
    }

    #for-companies.section-companies-tint .section-heading {
      margin-bottom: 1.5rem;
    }

    .section-heading {
      max-width: 820px;
      margin: 0 auto 2rem;
      text-align: center;
    }

    h2 {
      margin-bottom: 0.9rem;
      color: var(--color-text-heading);
      font-size: clamp(1.6rem, 3vw, 2.2rem);
      line-height: 1.35;
      letter-spacing: 0;
    }

    h3 {
      color: var(--color-text-heading);
      line-height: 1.45;
      letter-spacing: 0;
    }

    .section-lead {
      margin-bottom: 0;
      color: var(--color-text-body);
      line-height: 1.85;
    }

    .cisma-logo-stack {
      display: grid;
      justify-items: center;
      gap: 0.45rem;
      max-width: min(420px, 78vw);
      margin: -0.4rem auto 2rem;
    }

    .cisma-logo-stack img {
      display: block;
      width: 100%;
      height: auto;
      object-fit: contain;
    }

    .cisma-logo-stack img:first-child {
      max-width: min(320px, 70vw);
    }

    .cisma-logo-stack img:last-child {
      max-width: min(420px, 78vw);
    }

    .text-panel,
    .card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }

    .text-panel {
      max-width: 900px;
      margin: 0 auto;
      padding: 1.6rem;
    }

    .text-panel p,
    .card p {
      color: var(--color-text-body);
      line-height: 1.85;
    }

    .text-panel p:last-child,
    .card p:last-child {
      margin-bottom: 0;
    }

    .problem-cards {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 1.25rem;
    }

    .problem-card {
      position: relative;
      padding: 1.75rem 1.5rem 1.5rem;
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-left: 4px solid var(--color-accent);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition:
        transform 0.24s ease,
        box-shadow 0.24s ease;
    }

    @media (hover: hover) and (pointer: fine) {
      .problem-card:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 28px rgba(15, 23, 42, 0.09);
      }
    }

    .problem-card-header {
      display: grid;
      grid-template-columns: auto 1fr;
      align-items: start;
      column-gap: 0.75rem;
      margin-bottom: 0.5rem;
      width: 100%;
    }

    .problem-marker {
      grid-column: 1;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 2rem;
      height: 2rem;
      margin: 0;
      border-radius: 999px;
      background: var(--color-primary);
      color: #fff;
      font-size: 0.95rem;
      font-weight: 800;
      line-height: 1;
      box-shadow: 0 0 0 3px rgba(58, 119, 196, 0.22);
    }

    .problem-card h3 {
      grid-column: 2;
      min-width: 0;
      margin: 0;
      text-align: left;
      color: var(--color-text-heading);
      font-size: 1.08rem;
      line-height: 1.35;
    }

    .problem-card p {
      margin-bottom: 0;
      color: var(--color-text-body);
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 1.25rem;
    }

    .feature-card {
      padding: 1.5rem;
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition:
        transform 0.24s ease,
        box-shadow 0.24s ease;
    }

    @media (hover: hover) and (pointer: fine) {
      .feature-card:hover {
        transform: translateY(-3px);
        box-shadow: 0 14px 32px rgba(15, 23, 42, 0.1);
      }
    }

    .feature-card h3 {
      margin-bottom: 0.75rem;
      color: var(--color-text-heading);
      font-size: 1.1rem;
    }

    .feature-card ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .feature-card li {
      position: relative;
      padding: 0.25rem 0 0.25rem 1.2rem;
      color: var(--color-text-body);
      font-size: 0.95rem;
      line-height: 1.75;
    }

    .feature-card li::before {
      content: "";
      position: absolute;
      top: 0.85rem;
      left: 0.15rem;
      width: 0.45rem;
      height: 0.45rem;
      border-radius: 999px;
      background: var(--color-accent);
    }

    .usage-steps-detailed {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 1.25rem;
      max-width: 960px;
      margin: 0 auto;
      position: relative;
    }

    .usage-step-card {
      padding: 1.6rem;
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      position: relative;
      z-index: 1;
      transition:
        transform 0.24s ease,
        box-shadow 0.24s ease;
    }

    @media (hover: hover) and (pointer: fine) {
      .usage-step-card:hover {
        transform: translateY(-3px);
        box-shadow: 0 14px 32px rgba(15, 23, 42, 0.1);
      }
    }

    .step-header {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-bottom: 0.9rem;
    }

    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 2.1rem;
      height: 2.1rem;
      border-radius: 999px;
      background: var(--color-primary);
      color: #fff;
      font-weight: 800;
      font-size: 1rem;
      box-shadow: 0 0 0 3px rgba(58, 119, 196, 0.2);
    }

    .step-header h3 {
      margin: 0;
      font-size: 1.08rem;
    }

    .step-description {
      margin-bottom: 0.65rem;
      color: var(--color-text-body);
    }

    .step-details {
      list-style: none;
      margin: 0 0 0.9rem;
      padding: 0;
    }

    .step-details li {
      position: relative;
      padding: 0.25rem 0 0.25rem 1.2rem;
      color: var(--color-text-body);
      font-size: 0.95rem;
      line-height: 1.75;
    }

    .step-details li::before {
      content: "";
      position: absolute;
      top: 0.85rem;
      left: 0.15rem;
      width: 0.45rem;
      height: 0.45rem;
      border-radius: 999px;
      background: var(--color-accent);
    }

    .step-details li strong {
      color: var(--color-text-heading);
      font-weight: 700;
    }

    .step-tip {
      margin: 0;
      padding: 0.7rem 0.9rem;
      background: var(--color-soft);
      border-radius: var(--radius);
      color: var(--color-text-body);
      font-size: 0.92rem;
      line-height: 1.75;
    }

    .step-tip-label {
      display: inline-block;
      margin-right: 0.5rem;
      padding: 0.1rem 0.5rem;
      border-radius: 999px;
      background: var(--color-primary);
      color: #fff;
      font-size: 0.76rem;
      font-weight: 800;
    }

    .faq-panel {
      max-width: 900px;
      margin: 0 auto;
      padding: 0 1.35rem;
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition:
        transform 0.24s ease,
        box-shadow 0.24s ease;
    }

    @media (hover: hover) and (pointer: fine) {
      .faq-panel:hover {
        box-shadow: 0 14px 34px rgba(15, 23, 42, 0.09);
      }
    }

    details.faq-item {
      padding: 1.1rem 0;
      border-bottom: 1px solid var(--color-border);
    }

    details.faq-item:last-of-type {
      border-bottom: none;
    }

    summary.faq-summary {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 1rem;
      list-style: none;
      cursor: pointer;
      padding: 0.15rem 0;
      font-weight: 800;
      font-size: 1rem;
      color: var(--color-text-heading);
      line-height: 1.5;
    }

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

    summary.faq-summary:focus-visible {
      outline: 2px solid var(--color-accent);
      outline-offset: 4px;
      border-radius: var(--radius);
    }

    .faq-summary-prefix {
      flex-shrink: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 1.5rem;
      min-width: 1.85rem;
      margin-top: 0.1rem;
      padding: 0 0.45rem;
      border-radius: 6px;
      background: var(--color-primary);
      color: #fff;
      font-size: 0.74rem;
      font-weight: 800;
      letter-spacing: 0.02em;
    }

    .faq-summary-text {
      flex: 1;
      min-width: 0;
      text-align: left;
    }

    .faq-chevron {
      flex-shrink: 0;
      width: 0.55rem;
      height: 0.55rem;
      margin-top: 0.42rem;
      border-right: 2px solid var(--color-accent);
      border-bottom: 2px solid var(--color-accent);
      transform: rotate(45deg);
      transition: transform 0.22s ease;
    }

    details.faq-item[open] .faq-chevron {
      transform: rotate(225deg);
      margin-top: 0.62rem;
    }

    .faq-answer {
      padding: 0.75rem 0 0 calc(1.85rem + 0.45rem);
      border-left: 3px solid rgba(58, 119, 196, 0.35);
      margin: 0.6rem 0 0 0.1rem;
    }

    .faq-answer p {
      margin: 0;
      color: var(--color-text-body);
      line-height: 1.85;
    }

    .footer {
      padding: 1.6rem 0 2.4rem;
      border-top: 1px solid var(--color-border);
      color: var(--color-text-light);
      font-size: 0.88rem;
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
    }

    .footer a {
      color: var(--color-primary);
      text-decoration: none;
    }

    .footer a:hover {
      text-decoration: underline;
    }

    @media (max-width: 860px) {
      .problem-cards,
      .feature-grid {
        grid-template-columns: 1fr;
      }

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

      .usage-steps-detailed.usage-steps-connected::before {
        content: "";
        position: absolute;
        left: calc(1.6rem + 1.05rem);
        top: 2.2rem;
        bottom: 2.2rem;
        width: 2px;
        background: linear-gradient(180deg, var(--color-accent), var(--color-primary-mid));
        opacity: 0.38;
        border-radius: 2px;
        pointer-events: none;
        z-index: 0;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        align-items: flex-start;
        flex-direction: column;
      }

      .nav {
        justify-content: flex-start;
      }

      .nav a {
        padding: 0.45rem 0.55rem;
      }

      .hero {
        padding: 2.3rem 0 2.1rem;
      }

      h1 {
        font-size: 2rem;
      }

      .hero-copy {
        font-size: 1rem;
      }

      .cta-row {
        align-items: stretch;
        flex-direction: column;
      }

      .cta-row .btn {
        width: 100%;
      }

      .section {
        padding: 2.4rem 0;
      }

      .section.section--band-soft {
        padding: 2.4rem calc(50vw - 50%);
      }

      .text-panel,
      .card,
      .problem-card,
      .feature-card,
      .usage-step-card {
        padding: 1.25rem;
      }

      .faq-panel {
        padding: 0 1.15rem;
      }

      .footer-inner {
        align-items: flex-start;
        flex-direction: column;
      }
    }
    [data-motion] {
      opacity: 1;
      transform: none;
    }

    @media (prefers-reduced-motion: no-preference) {
      .js-motion [data-motion] {
        opacity: 0;
        transform: translateY(18px);
      }

      .js-motion [data-motion].motion-visible {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.58s ease, transform 0.58s cubic-bezier(0.22, 1, 0.36, 1);
      }
    }

    @media (prefers-reduced-motion: reduce) {
      [data-motion] {
        opacity: 1 !important;
        transform: none !important;
      }

      [data-motion].motion-visible {
        transition: none !important;
      }
    }