/* 서비스 소개와 이용 순서를 안내하는 독립 페이지의 화면 배치를 정의합니다. */
.about-page { max-width: 1000px; }
.about-heading { padding: 12px 0 0; }
.about-heading h1 { font-size: clamp(28px, 3vw, 40px); line-height: 1.4; }
.about-description { max-width: 46rem; margin: 16px 0 0; color: var(--muted); font-size: 1rem; overflow-wrap: anywhere; }
.about-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; margin-top: 24px; }
.about-actions .text-link { min-height: 46px; }
.about-note { margin: 10px 0 0; color: var(--muted); font-size: 0.875rem; }
.about-contents { display: flex; flex-wrap: wrap; gap: 4px 24px; margin-top: 28px; padding: 12px 18px; border: 1px solid var(--line); border-radius: 8px; background: var(--tinted-bg, var(--soft)); }
.about-contents a { display: inline-flex; align-items: center; min-height: 44px; color: var(--accent); font-size: 0.9375rem; font-weight: 600; text-underline-offset: 4px; }
.about-section { margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--line); scroll-margin-top: 24px; }
.about-section h2 { margin: 0; font-size: 1.375rem; }
.about-section h2[id] { scroll-margin-top: 24px; }
.about-section h3 { margin: 0 0 10px; font-size: 1.0625rem; }
.about-section-description { max-width: 54rem; margin: 14px 0 0; color: var(--muted); font-size: 0.9375rem; }
.about-example-note { margin: 16px 0 0; padding: 14px 18px; border-left: 3px solid var(--accent); background: var(--soft); color: var(--muted); font-size: 0.875rem; }
.about-features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: 24px; }
.about-features article { min-width: 0; }
.about-features p, .about-steps p { margin: 0; color: var(--muted); font-size: 0.9375rem; overflow-wrap: anywhere; }
.about-steps { margin: 24px 0 0; padding: 0; list-style: none; counter-reset: about-step; }
.about-steps > li { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 16px 20px; counter-increment: about-step; }
.about-steps > li + li { margin-top: 36px; padding-top: 32px; border-top: 1px solid var(--line); }
.about-steps li::before { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--soft); color: var(--accent); font-size: 1rem; font-weight: 700; content: counter(about-step, decimal-leading-zero); }
.about-step-copy { min-width: 0; }
.about-step-copy > p + p { margin-top: 12px; }
.about-step-copy .about-tip { padding: 12px 16px; border-radius: 6px; background: var(--soft); font-size: 0.875rem; }
.about-tip strong { display: block; margin-bottom: 4px; color: var(--ink); }
.about-example { grid-column: 1 / -1; min-width: 0; margin: 0; }
.about-example-link { display: block; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.about-example-link:hover { outline: 2px solid var(--accent); outline-offset: 2px; }
.about-example img { display: block; width: 100%; height: auto; }
.about-example figcaption { margin-top: 10px; color: var(--muted); font-size: 0.875rem; overflow-wrap: anywhere; }
.about-steps .text-link { min-height: 44px; margin-top: 8px; font-size: 0.9375rem; }
.about-scenario { margin: 20px 0 8px; padding: 20px; border: 1px solid var(--line); border-radius: 8px; background: var(--tinted-bg, var(--soft)); }
.about-scenario strong { font-size: 1rem; }
.about-scenario p { margin: 8px 0 0; color: var(--muted); font-size: 0.9375rem; }
.about-section > .text-link { min-height: 44px; font-size: 0.9375rem; }
.about-faq details { padding: 18px 0; border-bottom: 1px solid var(--line); }
.about-faq details:first-of-type { margin-top: 12px; }
.about-faq summary { min-height: 28px; color: var(--ink); font-size: 1rem; font-weight: 600; cursor: pointer; }
.about-faq summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.about-faq details p { max-width: 54rem; margin: 12px 0 0; color: var(--muted); font-size: 0.9375rem; }
.about-access { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 24px 0 0; }
.about-access > div { padding: 20px; border: 1px solid var(--line); border-radius: 8px; background: var(--tinted-bg, var(--soft)); }
.about-access dt { margin-bottom: 8px; font-size: 1rem; font-weight: 600; }
.about-access dd { margin: 0; color: var(--muted); font-size: 0.9375rem; overflow-wrap: anywhere; }
@media (max-width: 760px) {
    .about-heading { padding-top: 0; }
    .about-heading h1 { font-size: 1.625rem; }
    .about-description { font-size: 0.9375rem; }
    .about-actions { margin-top: 20px; gap: 8px 20px; }
    .about-section { margin-top: 32px; padding-top: 24px; }
    .about-section h2 { font-size: 1.25rem; }
    .about-features { grid-template-columns: minmax(0, 1fr); gap: 20px; margin-top: 20px; }
    .about-contents { gap: 4px 20px; padding: 10px 14px; }
    .about-steps > li { grid-template-columns: 36px minmax(0, 1fr); gap: 12px; }
    .about-steps > li + li { margin-top: 28px; padding-top: 24px; }
    .about-steps li::before { width: 36px; height: 36px; font-size: 0.875rem; }
    .about-step-copy .about-tip { padding: 12px; }
    .about-example-note { padding: 12px 14px; }
    .about-access { grid-template-columns: minmax(0, 1fr); }
}