.about-page { width: min(820px, calc(100% - 32px)); }
.about-header { padding-bottom: 30px; }
.about-header h1 { font-size: clamp(2.2rem, 7vw, 3.5rem); line-height: 1.2; }
.role { margin: 8px 0 0; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-weight: 700; }
.intro { max-width: 680px; margin-top: 24px; color: #53645a; }
.intro p { margin: 0 0 12px; }
.contents { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.contents a { padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .82rem; }
.contents a:hover, .related-links a:hover { background: var(--accent-soft); }
.career-list { display: grid; gap: 12px; }
.career-item { display: grid; grid-template-columns: 128px minmax(0, 1fr); gap: 20px; padding: 20px; border: 1px solid #dfe2d7; border-radius: 8px; background: var(--paper); box-shadow: 0 3px 10px rgba(38, 53, 46, .035); }
.career-years { margin: 3px 0 0; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9rem; font-weight: 700; white-space: nowrap; }
.career-item h3 { margin: 0 0 10px; color: #304d39; font-size: 1.08rem; line-height: 1.5; }
.career-item p:not(.career-years) { margin: 0 0 10px; color: #53645a; font-size: .94rem; }
.career-item p:last-child { margin-bottom: 0; }
.skill-list { margin: 0; border-top: 1px solid var(--line); }
.skill-row { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.skill-row dt { color: #304d39; font-weight: 700; }
.skill-row dd { margin: 0; color: var(--muted); font-size: .94rem; }
.skill-row dd p { margin: 0 0 6px; }
.skill-row dd p:last-child { margin-bottom: 0; }
.skill-tags { color: var(--text); font-weight: 600; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 18px; padding: 0; list-style: none; }
.tag-list li { padding: 5px 10px; border: 1px solid #dfe2d7; border-radius: 999px; background: var(--paper); color: #405648; font-size: .9rem; }
.about-site { padding-bottom: 24px; }
.related-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 20px; }
.related-links a { display: flex; flex-direction: column; gap: 2px; padding: 12px 14px; border: 1px solid #dfe2d7; border-radius: 8px; background: var(--paper); color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.related-links span { color: var(--muted); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: .86rem; }
@media (max-width: 640px) {
    .about-page { width: min(100% - 24px, 760px); }
    .about-header { padding: 26px 20px; }
    .career-item { grid-template-columns: 1fr; gap: 8px; padding: 16px; }
    .skill-row { grid-template-columns: 1fr; gap: 5px; }
    .related-links { grid-template-columns: 1fr; }
}