.about-page { background: #fff; color: #243129; }
.about-header { position: sticky; top: 0; z-index: 20; }
.about-main { margin: 0 auto; max-width: 1040px; padding: 16px 28px 48px; }
.about-back-nav { margin-bottom: 16px; }
.about-back-nav a { color: #0A592F; font-size: 13px; font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.about-main article { max-width: 940px; margin: 0 auto; }
.about-main h1 { color: #0A592F; font-size: 27px; line-height: 1.2; margin: 0 0 12px; }
.about-main h2 { color: #0A592F; font-size: 19px; line-height: 1.25; margin: 0 0 10px; }
.about-main p, .about-main li { font-size: 15px; line-height: 1.47; }
.about-main p { margin: 0 0 12px; }
.about-opening { max-width: 820px; }
.about-intro { align-items: start; display: grid; gap: 18px; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); margin: 16px 0; }
.about-organizer-image { display: block; height: auto; width: 100%; }
.about-intro-copy { padding-top: 2px; }
.about-intro-copy h2 { margin-top: 0; }
.about-intro-copy h3 { color: #0A592F; font-size: 16px; margin: 12px 0 6px; }
.about-intro-copy ul { margin: 0; padding-left: 22px; }
.about-intro-copy li { margin: 0 0 4px; padding-left: 2px; }
.about-intro-copy li::marker { color: #0A592F; }
.about-promise { border-bottom: 1px solid #d7e4d9; color: #0A592F; padding: 12px 0 20px; text-align: center; }
.about-section { padding: 20px 0 2px; }
.about-section + .about-section { border-top: 1px solid #d7e4d9; margin-top: 18px; }
.about-section ol { margin: 0; padding-left: 30px; }
.about-section li { margin-bottom: 7px; padding-left: 5px; }
.about-section li::marker { color: #0A592F; font-weight: 700; }
.about-main strong { font-weight: 700; }
.about-creator { align-items: start; border-top: 1px solid #d7e4d9; display: grid; gap: 24px; grid-template-columns: 220px minmax(0, 1fr); margin-top: 32px; padding-top: 26px; }
.about-creator img { display: block; height: auto; width: 100%; }
.about-creator p { margin-bottom: 8px; }
.about-version { border-top: 1px solid #d7e4d9; color: #55675a; display: flex; font-size: 12px; gap: 12px; justify-content: space-between; margin-top: 28px; padding-top: 11px; }
@media (max-width: 700px) {
  .about-intro { display: block; margin-top: 14px; }
  .about-organizer-image { margin: 0 auto 18px; max-width: 430px; }
}
@media (max-width: 700px) {
  .about-main { padding: 12px 16px 32px; }
  .about-main h1 { font-size: 23px; }
  .about-main h2 { font-size: 18px; }
  .about-main p, .about-main li { font-size: 14px; line-height: 1.5; }
  .about-intro-copy h2 { margin-top: 16px; }
  .about-creator { grid-template-columns: 150px minmax(0, 1fr); gap: 14px; }
  .about-creator h2 { margin-bottom: 8px; }
}
@media (max-width: 480px) {
  .about-creator { display: block; }
  .about-creator img { margin: 0 0 16px; width: min(210px, 65%); }
}