.page-about { background: #fff; }
.about-hero { padding: clamp(1.8rem, 3vw, 2.25rem) 0; overflow: hidden; color: #fff; background: radial-gradient(circle at 85% 15%, rgb(255 138 31 / 24%), transparent 28%), linear-gradient(135deg, #073b67, #087ab9 68%, #18a3a0); }
.about-hero__grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(390px, 0.92fr); align-items: center; gap: clamp(2rem, 5vw, 5rem); }
.about-hero .bit-eyebrow { color: #bfe9ff; }
.about-hero h1 { max-width: 760px; margin-bottom: 0.85rem; color: #fff; font-size: clamp(2.2rem, 4.2vw, 3.3rem); line-height: 1.14; }
.about-hero__lead { max-width: 760px; margin-bottom: 1.35rem; color: rgb(255 255 255 / 82%); font-size: clamp(1.02rem, 1.6vw, 1.2rem); line-height: 1.85; }
.about-hero .btn { display: inline-flex; align-items: center; gap: 0.5rem; }
.about-hero figure { position: relative; width: min(100%, 440px); margin: 0; justify-self: end; }
.about-hero figure::before { position: absolute; inset: 8% -6% -8% 8%; content: ""; background: rgb(255 255 255 / 10%); border-radius: 32px; transform: rotate(3deg); }
.about-hero img { position: relative; display: block; width: 100%; height: auto; border: 1px solid rgb(255 255 255 / 26%); border-radius: 24px; box-shadow: 0 24px 58px rgb(1 28 49 / 28%); }
.about-hero figcaption { position: absolute; right: 1rem; bottom: 0.75rem; padding: 0.28rem 0.55rem; color: rgb(255 255 255 / 74%); background: rgb(7 59 103 / 66%); border-radius: 6px; font-size: 0.72rem; }
.about-main { background: linear-gradient(180deg, #f6fafc 0, #fff 15rem); }
.about-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); align-items: start; gap: clamp(2rem, 5vw, 5rem); }
.about-section-nav { position: sticky; top: 6.5rem; overflow: hidden; background: #fff; border: 1px solid var(--bit-border); border-radius: var(--bit-radius-lg); box-shadow: 0 14px 34px rgb(7 59 103 / 8%); }
.about-section-nav > p { padding: 1.1rem 1.2rem 0.8rem; margin: 0; color: var(--bit-text-muted); border-bottom: 1px solid var(--bit-border); font-size: 0.82rem; font-weight: 800; letter-spacing: 0.12em; }
.about-section-nav nav { display: grid; padding: 0.5rem; }
.about-section-nav a { display: grid; min-width: 0; padding: 0.85rem 0.75rem; align-items: center; color: var(--bit-text); border-left: 3px solid transparent; border-radius: 8px; grid-template-columns: 1.7rem 1.55rem minmax(0, 1fr) auto; gap: 0.45rem; text-decoration: none; }
.about-section-nav a:hover, .about-section-nav a:focus-visible { color: var(--bit-brand-dark); background: #eef8fd; outline: 0; }
.about-section-nav a[aria-current="page"] { color: var(--bit-brand-dark); background: #e5f4fc; border-left-color: var(--bit-accent); }
.about-section-nav__no { color: #8296a5; font-size: 0.72rem; font-weight: 800; }
.about-section-nav a > i:first-of-type { color: var(--bit-brand); font-size: 1.05rem; }
.about-section-nav a > i:last-child { color: #8da1af; font-size: 0.8rem; }
.about-section-nav strong, .about-section-nav small { display: block; }
.about-section-nav strong { font-size: 0.96rem; }
.about-section-nav small { margin-top: 0.12rem; color: var(--bit-text-muted); font-size: 0.72rem; line-height: 1.35; }
.about-content { min-width: 0; }
.about-section-heading { display: grid; margin-bottom: 1.6rem; grid-template-columns: minmax(0, 1fr) minmax(260px, 0.7fr); align-items: end; gap: 2rem; }
.about-section-heading:has(> div:only-child) { grid-template-columns: 1fr; }
.about-section-heading .bit-eyebrow { margin-bottom: 0.45rem; }
.about-section-heading h2 { max-width: 760px; margin: 0; font-size: clamp(1.65rem, 3vw, 2.45rem); line-height: 1.25; }
.about-section-heading h2 > i { margin-right: 0.65rem; color: var(--bit-brand); font-size: 0.84em; }
.about-section-heading > p { margin: 0; color: var(--bit-text-muted); line-height: 1.8; }
.about-prose { font-size: 1.06rem; line-height: 1.9; }
.about-prose blockquote { padding: 1.15rem 1.4rem; margin: 1.3rem 0 0; color: var(--bit-brand-dark); background: #eaf6fc; border-left: 4px solid var(--bit-brand); border-radius: 0 var(--bit-radius-sm) var(--bit-radius-sm) 0; font-weight: 650; }
.about-card-grid { display: grid; margin-top: 2rem; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.about-card { padding: 1.3rem; background: #fff; border: 1px solid var(--bit-border); border-radius: var(--bit-radius); box-shadow: 0 9px 24px rgb(7 59 103 / 6%); }
.about-card > i { display: grid; width: 2.65rem; height: 2.65rem; place-items: center; color: var(--bit-brand); background: #e5f5fd; border-radius: 12px; font-size: 1.25rem; }
.about-card:nth-child(2n) > i { color: #0b7b74; background: #e7f8f5; }
.about-card:nth-child(3n) > i { color: #b95700; background: #fff0e1; }
.about-card h3 { margin: 1rem 0 0.5rem; font-size: 1.12rem; }
.about-card p { margin: 0; color: var(--bit-text-muted); line-height: 1.75; }
.about-subsection { padding-top: clamp(2.6rem, 5vw, 4.5rem); margin-top: clamp(2.6rem, 5vw, 4.5rem); border-top: 1px solid var(--bit-border); }
.about-principles { display: grid; gap: 0.85rem; }
.about-principles article { display: grid; padding: 1.05rem 1.2rem; background: #fff; border: 1px solid var(--bit-border); border-radius: var(--bit-radius); grid-template-columns: 3.1rem minmax(0, 1fr); gap: 1rem; }
.about-principles article > span { display: grid; width: 3rem; height: 3rem; place-items: center; color: #fff; background: var(--bit-brand); border-radius: 50%; font-size: 0.8rem; font-weight: 800; }
.about-principles article:nth-child(2) > span { background: #15958e; }
.about-principles article:nth-child(3) > span { background: var(--bit-accent); }
.about-principles h3 { margin: 0 0 0.35rem; font-size: 1.08rem; }
.about-principles p { margin: 0; color: var(--bit-text-muted); line-height: 1.7; }
.about-region { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 0.52fr); align-items: center; gap: 2rem; }
.about-region aside { padding: 1.35rem; color: #fff; background: var(--bit-brand-dark); border-radius: var(--bit-radius-lg); }
.about-inline-title { display: flex; align-items: center; gap: 0.65rem; }
.about-inline-title > i { flex: 0 0 auto; color: #ffc48e; font-size: 1.5rem; }
.about-inline-title h3 { margin: 0; }
.about-region aside h3 { color: #fff; font-size: 1.15rem; }
.about-region aside p { margin: 0; color: rgb(255 255 255 / 76%); line-height: 1.75; }
.about-region aside .about-inline-title + p { margin-top: 0.65rem; }
.about-person-summary { display: grid; padding: clamp(1.2rem, 3vw, 2rem); background: #fff; border: 1px solid var(--bit-border); border-radius: var(--bit-radius-lg); grid-template-columns: 180px minmax(0, 1fr); align-items: center; gap: clamp(1.5rem, 4vw, 3rem); box-shadow: 0 14px 34px rgb(7 59 103 / 8%); }
.about-person-summary img { width: 180px; height: 180px; object-fit: cover; border: 6px solid #e7f5fc; border-radius: 50%; }
.about-tags { display: flex; margin: 1rem 0 1.3rem; flex-wrap: wrap; gap: 0.45rem; }
.about-tags span { padding: 0.35rem 0.65rem; color: var(--bit-brand-dark); background: #e9f6fc; border-radius: 999px; font-size: 0.82rem; font-weight: 700; }
.about-person-summary dl { display: grid; margin: 0; gap: 0.65rem; }
.about-person-summary dl > div { display: grid; grid-template-columns: 5rem minmax(0, 1fr); gap: 0.7rem; }
.about-person-summary dt { color: var(--bit-brand); }
.about-person-summary dd { margin: 0; color: var(--bit-text-muted); }
.about-notice, .about-boundary { display: grid; padding: 1.2rem 1.3rem; margin-top: 1.5rem; color: #70400e; background: #fff9ed; border: 1px solid #f3d79b; border-left: 4px solid var(--bit-accent); border-radius: var(--bit-radius-sm); grid-template-columns: 1.6rem minmax(0, 1fr); gap: 0.75rem; }
.about-notice i, .about-boundary > i { margin-top: 0.18rem; color: var(--bit-accent); font-size: 1.2rem; }
.about-notice p, .about-boundary p { margin: 0; line-height: 1.75; }
.about-career { position: relative; display: grid; padding-left: 1.9rem; gap: 1.1rem; }
.about-career::before { position: absolute; top: 0.6rem; bottom: 0.6rem; left: 0.42rem; width: 2px; content: ""; background: #a9d3e8; }
.about-career article { position: relative; padding: 1.2rem 1.3rem; background: #fff; border: 1px solid var(--bit-border); border-radius: var(--bit-radius); }
.about-career article::before { position: absolute; top: 1.45rem; left: -1.95rem; width: 0.9rem; height: 0.9rem; content: ""; background: var(--bit-accent); border: 4px solid #fff; border-radius: 50%; box-shadow: 0 0 0 2px var(--bit-accent); }
.about-career time { color: var(--bit-brand); font-size: 0.84rem; font-weight: 800; }
.about-career h3 { margin: 0.25rem 0 0.4rem; font-size: 1.12rem; }
.about-career p { margin: 0; color: var(--bit-text-muted); }
.about-stack-list { display: grid; margin: 0; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.about-stack-list > div { padding: 1.15rem; background: #f6fafc; border: 1px solid var(--bit-border); border-radius: var(--bit-radius-sm); }
.about-stack-list dt { margin-bottom: 0.4rem; color: var(--bit-brand-dark); font-size: 1.02rem; }
.about-stack-list dd { margin: 0; color: var(--bit-text-muted); line-height: 1.7; }
.about-timeline { position: relative; display: grid; padding: 0; margin: 0; list-style: none; gap: 0.3rem; }
.about-timeline::before { position: absolute; top: 1.5rem; bottom: 1.5rem; left: 5.05rem; width: 3px; content: ""; background: linear-gradient(var(--bit-brand), #18a3a0, var(--bit-accent)); }
.about-timeline li { position: relative; display: grid; min-height: 7.2rem; padding: 1rem 0; grid-template-columns: 2.3rem 4.4rem minmax(0, 1fr); align-items: start; gap: 0.7rem; }
.about-timeline li > span { padding-top: 0.45rem; color: #8296a5; font-size: 0.72rem; font-weight: 800; }
.about-timeline time { position: relative; z-index: 1; display: grid; width: 4rem; height: 4rem; place-items: center; color: #fff; background: var(--bit-brand); border: 5px solid #edf7fb; border-radius: 50%; font-size: 0.88rem; font-weight: 800; }
.about-timeline li:nth-child(n + 5) time { background: #128d87; }
.about-timeline li:last-child time { background: var(--bit-accent); }
.about-timeline li > div { padding: 0.75rem 1.15rem 1rem; background: #fff; border: 1px solid var(--bit-border); border-radius: var(--bit-radius); }
.about-timeline h3 { margin: 0 0 0.4rem; font-size: 1.12rem; }
.about-timeline p { margin: 0; color: var(--bit-text-muted); line-height: 1.75; }
.about-table { width: 100%; overflow: hidden; background: #fff; border: 1px solid var(--bit-border); border-collapse: separate; border-spacing: 0; border-radius: var(--bit-radius); }
.about-table th, .about-table td { padding: 0.85rem 1rem; border-bottom: 1px solid var(--bit-border); }
.about-table thead th { color: #fff; background: var(--bit-brand-dark); }
.about-table tbody th { color: var(--bit-brand-dark); font-weight: 700; }
.about-table tbody td { color: var(--bit-text-muted); }
.about-table tr:last-child th, .about-table tr:last-child td { border-bottom: 0; }
.about-network-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.85rem; }
.about-network-list article { display: grid; padding: 1.05rem; background: #fff; border: 1px solid var(--bit-border); border-radius: var(--bit-radius); grid-template-columns: 2.7rem minmax(0, 1fr); gap: 0.8rem; }
.about-network-list article > i { display: grid; width: 2.7rem; height: 2.7rem; place-items: center; color: var(--bit-brand); background: #e7f5fc; border-radius: 50%; }
.about-network-list h3 { margin: 0 0 0.3rem; font-size: 1.05rem; }
.about-network-list p { margin: 0; color: var(--bit-text-muted); font-size: 0.92rem; line-height: 1.65; }
.about-opc-steps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; counter-reset: opc; }
.about-opc-steps article { position: relative; padding: 1.35rem; overflow: hidden; background: #fff; border: 1px solid var(--bit-border); border-radius: var(--bit-radius); }
.about-opc-steps article::after { position: absolute; right: -0.35rem; bottom: -1.3rem; color: rgb(7 59 103 / 5%); content: attr(data-step); font-size: 6rem; font-weight: 900; }
.about-opc-steps span { display: inline-grid; width: 2.5rem; height: 2.5rem; place-items: center; color: #fff; background: var(--bit-brand); border-radius: 50%; font-size: 0.78rem; font-weight: 800; }
.about-opc-steps article:nth-child(2) span, .about-opc-steps article:nth-child(3) span { background: #158f88; }
.about-opc-steps article:last-child span { background: var(--bit-accent); }
.about-opc-steps h3 { margin: 0.9rem 0 0.45rem; font-size: 1.1rem; }
.about-opc-steps p { margin: 0; color: var(--bit-text-muted); line-height: 1.7; }
.about-opc-scenes ul { display: grid; padding: 0; margin: 0; grid-template-columns: repeat(2, minmax(0, 1fr)); list-style: none; gap: 0.8rem; }
.about-opc-scenes li { display: flex; padding: 0.9rem 1rem; align-items: center; gap: 0.7rem; background: #edf8fd; border-radius: var(--bit-radius-sm); }
.about-opc-scenes li i { color: #0f8b83; font-size: 1.15rem; }
.about-boundary { display: block; color: #713f12; }
.about-boundary .about-inline-title { margin-bottom: 0.45rem; }
.about-boundary .about-inline-title > i { color: var(--bit-accent); font-size: 1.25rem; }
.about-boundary h3 { margin: 0 0 0.35rem; color: #713f12; font-size: 1.08rem; }
.page-about-opc .about-card { display: grid; grid-template-columns: 2.65rem minmax(0, 1fr); align-items: center; column-gap: 0.8rem; }
.page-about-opc .about-card h3 { margin: 0; }
.page-about-opc .about-card p { margin-top: 0.75rem; grid-column: 1 / -1; }

@media (max-width: 991.98px) {
  .about-hero__grid { grid-template-columns: minmax(0, 1.1fr) minmax(310px, 0.9fr); gap: 1.75rem; }
  .about-layout { grid-template-columns: 1fr; gap: 2rem; }
  .about-section-nav { position: sticky; z-index: 20; top: 4.7rem; overflow-x: auto; border-radius: var(--bit-radius); }
  .about-section-nav > p { display: none; }
  .about-section-nav nav { display: flex; width: max-content; min-width: 100%; padding: 0.35rem; }
  .about-section-nav a { min-width: 145px; padding: 0.75rem; border-bottom: 3px solid transparent; border-left: 0; grid-template-columns: 1.35rem 1.35rem minmax(0, 1fr); }
  .about-section-nav a[aria-current="page"] { border-bottom-color: var(--bit-accent); border-left-color: transparent; }
  .about-section-nav a > i:last-child, .about-section-nav small { display: none; }
  .about-region { grid-template-columns: 1fr; }
}

@media (max-width: 767.98px) {
  .about-hero { padding: 1.65rem 0 2rem; }
  .about-hero__grid { grid-template-columns: 1fr; gap: 1.45rem; }
  .about-hero figure { width: min(88%, 430px); justify-self: start; }
  .about-hero figcaption { display: none; }
  .about-section-heading { grid-template-columns: 1fr; align-items: start; gap: 0.7rem; }
  .about-card-grid, .about-stack-list, .about-network-list, .about-opc-steps, .about-opc-scenes ul { grid-template-columns: 1fr; }
  .about-person-summary { grid-template-columns: 120px minmax(0, 1fr); align-items: start; gap: 1.1rem; }
  .about-person-summary img { width: 120px; height: 120px; }
  .about-person-summary .bit-lead, .about-person-summary .about-tags, .about-person-summary dl { grid-column: 1 / -1; }
}

@media (max-width: 575.98px) {
  .about-hero h1 { font-size: 2rem; }
  .about-hero__lead { font-size: 0.98rem; line-height: 1.7; }
  .about-hero figure { width: 88%; }
  .about-section-nav { top: 4.25rem; margin-inline: -0.35rem; }
  .about-section-nav a { min-width: 126px; grid-template-columns: 1.2rem 1.25rem minmax(0, 1fr); }
  .about-section-nav__no { font-size: 0.65rem; }
  .about-section-nav strong { font-size: 0.88rem; }
  .about-person-summary { grid-template-columns: 84px minmax(0, 1fr); }
  .about-person-summary img { width: 84px; height: 84px; }
  .about-person-summary dl > div { grid-template-columns: 1fr; gap: 0.15rem; }
  .about-timeline::before { left: 2.25rem; }
  .about-timeline li { grid-template-columns: 4.6rem minmax(0, 1fr); gap: 0.5rem; }
  .about-timeline li > span { display: none; }
  .about-timeline time { width: 4.5rem; height: 4.5rem; }
  .about-table th, .about-table td { min-width: 128px; padding: 0.75rem; }
}