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

  #rhyfell-about {
    --ra-heading: #101c2c;
    --ra-text: #596675;
    --ra-accent: #63d6c5;
    --ra-hover: #83e3d5;
    width: 100%;
    padding: 72px 24px;
    background: #ffffff;
    font-family: Arial, Helvetica, sans-serif;
  }

  #rhyfell-about .ra-wrap {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
  }

  #rhyfell-about .ra-profile {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr) 280px;
    align-items: start;
    gap: 32px;
    margin-bottom: 48px;
  }

  #rhyfell-about .ra-brand-column {
    text-align: center;
  }

  #rhyfell-about .ra-brand-circle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 190px;
    aspect-ratio: 1;
    margin: 0 auto 20px;
    border: 1px solid #d8eee8;
    border-radius: 50%;
    background: #edf9f6;
    color: var(--ra-heading);
  }

  #rhyfell-about .ra-brand-name {
    font-size: 29px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.04em;
  }

  #rhyfell-about .ra-brand-label {
    margin-top: 10px;
    color: #12695d;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: 0.08em;
  }

  #rhyfell-about .ra-brand-caption {
    margin: 0;
    color: var(--ra-text);
    font-size: 14px;
    line-height: 1.7;
  }

  #rhyfell-about .ra-eyebrow {
    margin: 0 0 12px;
    padding: 0;
    color: #12695d;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  #rhyfell-about .ra-title {
    margin: 0 0 22px;
    padding: 0;
    color: var(--ra-heading);
    font-family: inherit;
    font-size: clamp(28px, 3vw, 38px);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.025em;
    text-transform: none;
  }

  #rhyfell-about .ra-copy p {
    margin: 0 0 16px;
    padding: 0;
    color: var(--ra-text);
    font-size: 15px;
    line-height: 1.8;
  }

  #rhyfell-about .ra-copy p:last-child {
    margin-bottom: 0;
  }

  #rhyfell-about .ra-contact {
    min-width: 0;
    padding: 28px 24px;
    border: 1px solid #d8eee8;
    border-top: 3px solid var(--ra-accent);
    border-radius: 10px;
    background: #f7fbfa;
  }

  #rhyfell-about .ra-contact-title {
    margin: 0 0 14px;
    padding: 0;
    color: var(--ra-heading);
    font-family: inherit;
    font-size: 23px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.02em;
    text-transform: none;
  }

  #rhyfell-about .ra-contact-description {
    margin: 0 0 18px;
    color: var(--ra-text);
    font-size: 14px;
    line-height: 1.75;
  }

  #rhyfell-about .ra-contact-list {
    margin: 0 0 24px;
    padding-left: 18px;
    color: var(--ra-text);
    font-size: 14px;
    line-height: 1.7;
  }

  #rhyfell-about .ra-contact-list li {
    margin: 0 0 8px;
    padding-left: 2px;
  }

  #rhyfell-about .ra-contact-list li::marker {
    color: #12695d;
  }

  #rhyfell-about .ra-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 52px;
    margin: 0;
    padding: 14px 18px;
    border: 0;
    border-radius: 5px;
    background: var(--ra-accent);
    color: #10252b;
    font-family: inherit;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.4;
    text-align: center;
    text-transform: none;
    cursor: pointer;
    appearance: none;
    transition: background-color 180ms ease;
  }

  #rhyfell-about .ra-button:focus-visible {
    outline: 3px solid #12695d;
    outline-offset: 5px;
  }

  #rhyfell-about .ra-status {
    margin: 14px 0 0;
    color: var(--ra-text);
    font-size: 13px;
    line-height: 1.6;
  }

  #rhyfell-about .ra-status:empty {
    display: none;
  }

  #rhyfell-about .ra-status a {
    color: #12695d;
    text-decoration: underline;
  }

  #rhyfell-about .ra-values {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  #rhyfell-about .ra-panel {
    min-width: 0;
    padding: 36px 32px;
    border: 1px solid #e4eaf0;
    border-radius: 10px;
    text-align: left;
  }

  #rhyfell-about .ra-mission {
    border-color: #d5eee7;
    background: #edf9f6;
  }

  #rhyfell-about .ra-vision {
    background: #f5f7f9;
  }

  #rhyfell-about .ra-panel-title {
    margin: 0;
    padding: 0;
    color: var(--ra-heading);
    font-family: inherit;
    font-size: 25px;
    font-weight: 700;
    line-height: 1.3;
    text-transform: none;
  }

  #rhyfell-about .ra-divider {
    width: 40px;
    height: 3px;
    margin: 18px 0;
    border-radius: 2px;
    background: #12695d;
  }

  #rhyfell-about .ra-panel-text {
    margin: 0;
    padding: 0;
    color: var(--ra-text);
    font-size: 16px;
    line-height: 1.8;
  }

  /* 独立表单弹窗 */
  #rhyfell-about-dialog,
  #rhyfell-about-dialog * {
    box-sizing: border-box;
  }

  #rhyfell-about-dialog:not([open]) {
    display: none !important;
  }

  #rhyfell-about-dialog {
    width: min(900px, calc(100vw - 24px));
    max-width: none;
    max-height: calc(100dvh - 24px);
    margin: auto;
    padding: 0;
    overflow: auto;
    border: 0;
    border-radius: 12px;
    background: #ffffff;
    color: #101c2c;
    box-shadow: 0 24px 80px rgba(0, 0, 0, .3);
  }

  #rhyfell-about-dialog::backdrop {
    background: rgba(8, 18, 30, .65);
  }

  #rhyfell-about-dialog .ra-dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 20px;
    border-bottom: 1px solid #e5e9ee;
    font: 600 18px/1.4 Arial, sans-serif;
  }

  #rhyfell-about-dialog .ra-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    border-radius: 6px;
    background: #f0f4f7;
    color: #101c2c;
    font: 28px/1 Arial, sans-serif;
    cursor: pointer;
  }

  #rhyfell-about-dialog .ra-close:focus-visible {
    outline: 3px solid #12695d;
    outline-offset: 3px;
  }

  #rhyfell-about-dialog .ra-frame {
    display: block;
    width: 100%;
    height: min(720px, calc(100dvh - 160px));
    border: 0;
    background: #ffffff;
  }

  #rhyfell-about-dialog .ra-fallback {
    margin: 0;
    padding: 12px 20px;
    border-top: 1px solid #e5e9ee;
    font: 14px/1.5 Arial, sans-serif;
    text-align: center;
  }

  #rhyfell-about-dialog .ra-fallback a {
    color: #12695d;
    text-decoration: underline;
  }

  @media (hover: hover) and (pointer: fine) {
    #rhyfell-about .ra-button:hover {
      background: var(--ra-hover);
    }
  }

  @media (max-width: 1050px) {
    #rhyfell-about .ra-profile {
      grid-template-columns: 180px minmax(0, 1fr);
      gap: 28px;
    }

    #rhyfell-about .ra-brand-circle {
      width: 170px;
    }

    #rhyfell-about .ra-contact {
      grid-column: 1 / -1;
    }

    #rhyfell-about .ra-button {
      width: auto;
      min-width: 220px;
    }
  }

  @media (max-width: 767px) {
    #rhyfell-about {
      padding: 52px 20px;
    }

    #rhyfell-about .ra-profile {
      grid-template-columns: 1fr;
      gap: 28px;
      margin-bottom: 30px;
    }

    #rhyfell-about .ra-brand-circle {
      width: 180px;
      margin-bottom: 14px;
    }

    #rhyfell-about .ra-contact {
      grid-column: auto;
      padding: 26px 22px;
    }

    #rhyfell-about .ra-button {
      width: 100%;
      min-width: 0;
    }

    #rhyfell-about .ra-values {
      grid-template-columns: 1fr;
      gap: 20px;
    }

    #rhyfell-about .ra-panel {
      padding: 28px 24px;
    }

    #rhyfell-about .ra-panel-text {
      font-size: 15px;
    }

    #rhyfell-about-dialog .ra-dialog-header {
      padding: 10px 14px;
      font-size: 16px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    #rhyfell-about .ra-button {
      transition: none;
    }
  }