.nav-ai { color: var(--blue); }
.ai-section { padding-block: 100px 80px; background: #f5f9fc; border-top: 1px solid var(--line); }
.ai-heading { max-width: 910px; }
.ai-heading h2 { font-size: clamp(36px, 4.3vw, 54px); }
.ai-intro { max-width: 755px; font-size: 17px; color: var(--muted); margin-top: 28px; }
.ai-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 44px; }
.ai-card { display: flex; flex-direction: column; min-width: 0; padding: 28px; border: 1px solid var(--line); border-radius: 6px; background: #fff; transition: border-color .2s, box-shadow .2s; }
.ai-card:hover { border-color: var(--blue); box-shadow: 0 10px 28px rgba(7,84,155,.07); }
.ai-card-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.ai-card .small-label { color: var(--blue); font-size: 9px; }
.ai-card-arrow { color: var(--blue); font-size: 24px; line-height: 1; }
.ai-card-art { display: block; width: 100%; height: 94px; margin-block: 24px 26px; }
.ai-card-art .art-line { fill: none; stroke: #83a8c9; stroke-width: 1.5; stroke-linejoin: round; stroke-linecap: round; }
.ai-card-art .art-fill { fill: #eaf3fa; stroke: #aac6dc; stroke-width: 1; }
.ai-card-art .art-solid { fill: var(--blue); }
.ai-card-art .art-check { fill: none; stroke: #fff; stroke-width: 1.5; stroke-linejoin: round; stroke-linecap: round; }
.ai-card h3 { font-size: 25px; line-height: 1.22; }
.ai-card > p { font-size: 14px; color: var(--muted); margin-top: 18px; }
.ai-card-foot { display: flex; flex-direction: column; gap: 6px; margin-top: auto; padding-top: 28px; }
.ai-card-foot strong { font-size: 16px; font-weight: 650; color: var(--blue); }
.ai-card-foot > span { font-size: 11px; color: var(--muted); line-height: 1.5; }
.ai-shared-note { display: flex; align-items: baseline; gap: 15px; color: var(--muted); font-size: 13px; margin-top: 26px; }
.ai-note-mark { color: var(--blue); font-size: 21px; }
.rag-section { padding-block: 95px 85px; background: #f5f9fc; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.rag-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 80px; align-items: start; }
.rag-copy h2 { max-width: 600px; }
.rag-copy > p { margin-top: 24px; font-size: 15px; color: var(--muted); }
.rag-copy > .rag-intro { font-size: 18px; line-height: 1.75; margin-top: 28px; }
.rag-permissions { display: flex; align-items: flex-start; gap: 16px; border-top: 1px solid var(--line); margin-top: 26px; padding-top: 22px; }
.rag-permissions-mark { flex-shrink: 0; font-size: 23px; line-height: 1.4; color: var(--blue); }
.rag-permissions p { font-size: 13px; color: var(--muted); }
.rag-example { min-width: 0; margin: 0; padding: 28px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.rag-example-top { display: flex; justify-content: space-between; align-items: center; gap: 20px; color: var(--blue); }
.rag-example-top .small-label { font-size: 9px; color: var(--blue); }
.rag-example-question { padding: 23px; margin-top: 22px; background: #eef5fb; border: 1px solid #cddfeb; border-radius: 4px; }
.rag-example-question .small-label { font-size: 9px; color: var(--blue); }
.rag-example-question p { font-size: 21px; line-height: 1.35; letter-spacing: -.02em; margin-top: 12px; color: var(--ink); }
.rag-example-path { display: flex; align-items: center; gap: 13px; margin: 16px 9px; font-size: 11px; color: var(--muted); }
.rag-example-path > span:first-child { color: var(--blue); font-size: 20px; line-height: 1; }
.rag-source { display: flex; align-items: center; gap: 14px; padding: 18px 16px; border: 1px solid var(--line); border-radius: 4px; }
.rag-source + .rag-source { margin-top: 12px; }
.rag-source-number { flex-shrink: 0; color: var(--blue); font-size: 10px; }
.rag-source > div { min-width: 0; }
.rag-source p { font-size: 15px; font-weight: 600; color: var(--ink); line-height: 1.35; }
.rag-source > div > span { display: block; font-size: 11px; color: var(--muted); margin-top: 5px; }
.rag-source-mark { margin-left: auto; color: var(--blue); font-size: 21px; }
.rag-example figcaption { font-size: 11px; line-height: 1.6; color: var(--muted); margin-top: 20px; }
.rag-bottom { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 70px; align-items: center; margin-top: 55px; border-top: 1px solid var(--line); padding-top: 30px; }
.rag-bottom h3 { font-size: 25px; }
.rag-bottom p { max-width: 720px; font-size: 14px; color: var(--muted); margin-top: 15px; }
.rag-bottom .text-link { margin-top: 8px; }
.rag-bottom .button { white-space: nowrap; }
@media (min-width: 761px) and (max-width: 900px) {
  .header-inner { gap: 18px; }
  #site-nav { gap: 15px; }
  .brand { width: 175px; }
}
@media (max-width: 1080px) {
  .ai-cards { gap: 20px; }
  .ai-card { padding: 24px; }
  .ai-card h3 { font-size: 24px; }
  .rag-grid { gap: 45px; }
  .rag-bottom { gap: 40px; }
  .expertise-inner { gap: 20px; flex-wrap: wrap; padding-block: 18px; }
}
@media (max-width: 900px) {
  .ai-card { padding: 22px; }
  .ai-card .small-label { letter-spacing: .1em; }
  .ai-card h3 { font-size: 22px; }
  .rag-bottom { grid-template-columns: 1fr; gap: 22px; }
  .rag-bottom > .button { justify-self: start; }
}
@media (max-width: 760px) {
  .ai-section { padding-block: 72px 60px; }
  .ai-heading h2 { font-size: 37px; }
  .ai-intro { font-size: 16px; margin-top: 22px; }
  .ai-cards { grid-template-columns: 1fr; gap: 20px; margin-top: 32px; }
  .ai-card { padding: 26px; }
  .ai-card .small-label { font-size: 10px; }
  .ai-card-art { margin-block: 18px 22px; max-width: 300px; }
  .ai-card h3 { font-size: 27px; max-width: 470px; }
  .ai-card > p { margin-top: 16px; }
  .ai-card-foot { padding-top: 24px; }
  .ai-shared-note { margin-top: 24px; font-size: 12px; }
  .rag-section { padding-block: 72px 65px; }
  .rag-section > .container > .eyebrow { font-size: 9px; }
  .rag-grid { grid-template-columns: 1fr; gap: 36px; }
  .rag-copy h2 { font-size: 37px; }
  .rag-copy > .rag-intro { font-size: 17px; margin-top: 22px; }
  .rag-copy > p { font-size: 14px; }
  .rag-example { padding: 26px; }
  .rag-example-question { padding: 22px; }
  .rag-example-question p { font-size: 23px; }
  .rag-bottom { margin-top: 36px; padding-top: 26px; gap: 18px; }
  .rag-bottom .button { white-space: normal; }
}
@media (max-width: 390px) {
  .ai-heading h2, .rag-copy h2 { font-size: 34px; }
  .ai-card, .rag-example { padding-inline: 22px; }
  .ai-card h3 { font-size: 26px; }
  .rag-example-question { padding-inline: 18px; }
  .rag-source { padding-inline: 14px; gap: 11px; }
}