.about { max-width: 1280px; padding: 0 clamp(18px, 4vw, 56px) 120px; }
.about > section + section { margin-top: clamp(68px, 9vw, 118px); }
.about__hero { gap: clamp(36px, 6vw, 84px); grid-template-columns: minmax(0, .82fr) minmax(430px, 1.18fr); min-height: calc(100vh - 84px); }
.about__title { font-size: clamp(3.6rem, 7vw, 7.2rem); font-weight: 260; letter-spacing: -.065em; line-height: .87; }
.about__lead { color: var(--text-secondary, var(--muted)); font-size: clamp(1rem, 1.4vw, 1.16rem); }
.about__hero-visual { margin: 0; position: relative; }
.about__hero-visual img { aspect-ratio: 1.13; border: 1px solid var(--line); border-radius: var(--radius-large, 18px); box-shadow: var(--shadow); display: block; object-fit: cover; width: 100%; }
.about__hero-visual figcaption { backdrop-filter: blur(14px); background: color-mix(in srgb, var(--panel) 84%, transparent); border: 1px solid var(--line); bottom: 16px; color: var(--muted); font-size: .75rem; left: 16px; line-height: 1.5; max-width: 330px; padding: 12px 14px; position: absolute; }
.about__strip { border-radius: var(--radius, 12px); margin: 0; }
.about__strip div { min-height: 130px; padding: 24px; }
.about__plain { border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); display: grid; gap: clamp(34px, 8vw, 100px); grid-template-columns: 1fr 1fr; padding: clamp(38px, 6vw, 74px) 0; }
.about__plain > div:first-child, .about__section-head, .about__formats-guide > div:first-child, .about__troubleshooting > div:first-child, .about__faq > div:first-child { background: color-mix(in srgb, var(--panel) 90%, transparent); border: 1px solid var(--line); border-radius: var(--radius-large, 18px); box-shadow: var(--shadow); box-sizing: border-box; padding: clamp(24px, 4vw, 42px); }
.about__plain h2, .about__section h2, .about__formats-guide h2, .about__privacy h2, .about__troubleshooting h2, .about__faq h2, .about__cta h2 { font-size: clamp(2rem, 4.4vw, 4.2rem); font-weight: 300; letter-spacing: -.045em; line-height: 1.02; margin: 10px 0 0; }
.about__plain > div:last-child p { color: var(--muted); line-height: 1.75; margin: 0 0 16px; }
.about__section { margin-top: 0; }
.about__section-head { margin-bottom: 30px; max-width: 840px; }
.about__section-head > p:last-child { color: var(--muted); line-height: 1.7; }
.about__workflow { display: grid; gap: 10px; grid-template-columns: repeat(4, 1fr); }
.about__workflow article, .about__control-grid article, .about__use-cases article { background: color-mix(in srgb, var(--panel) 90%, transparent); border: 1px solid var(--line); border-radius: var(--radius, 12px); padding: 22px; }
.about__workflow b { color: var(--accent); font-size: .7rem; letter-spacing: .12em; }
.about__workflow h3, .about__use-cases h3 { font-size: .96rem; margin: 18px 0 8px; }
.about__workflow p, .about__control-grid p, .about__use-cases p { color: var(--muted); font-size: .82rem; line-height: 1.6; margin: 0; }
.about__formats-guide { align-items: center; display: grid; gap: clamp(38px, 7vw, 90px); grid-template-columns: minmax(0, .82fr) minmax(400px, 1.18fr); }
.about__formats-guide > div:first-child > p:last-child { color: var(--muted); line-height: 1.7; }
.about__format-table { background: color-mix(in srgb, var(--panel) 92%, transparent); border: 1px solid var(--line); border-radius: var(--radius, 12px); overflow: hidden; }
.about__format-table > div { display: grid; grid-template-columns: 90px 1fr; }
.about__format-table > div + div { border-top: 1px solid var(--line); }
.about__format-table strong, .about__format-table span { padding: 17px; }
.about__format-table strong { color: var(--accent); font-size: .78rem; letter-spacing: .08em; }
.about__format-table span { border-left: 1px solid var(--line); color: var(--muted); font-size: .82rem; line-height: 1.55; }
.about__control-grid { display: grid; gap: 10px; grid-template-columns: repeat(4, 1fr); }
.about__control-grid article { min-height: 150px; }
.about__control-grid strong { display: block; font-size: .88rem; margin-bottom: 12px; }
.about__privacy { align-items: center; background: color-mix(in srgb, var(--panel-2) 76%, transparent); border: 1px solid var(--line); border-radius: var(--radius-large, 18px); display: grid; gap: clamp(34px, 7vw, 90px); grid-template-columns: 1fr 1fr; padding: clamp(28px, 5vw, 54px); }
.about__privacy > div > p:last-child { color: var(--muted); line-height: 1.72; }
.about__privacy ul { display: grid; gap: 9px; list-style: none; margin: 0; padding: 0; }
.about__privacy li { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius, 12px); display: grid; gap: 5px; padding: 16px; }
.about__privacy li strong { font-size: .84rem; }
.about__privacy li span { color: var(--muted); font-size: .78rem; line-height: 1.5; }
.about__use-cases { display: grid; gap: 10px; grid-template-columns: repeat(4, 1fr); }
.about__troubleshooting { border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); display: grid; gap: clamp(34px, 7vw, 90px); grid-template-columns: .78fr 1.22fr; padding: clamp(38px, 6vw, 70px) 0; }
.about__troubleshooting ol { list-style: none; margin: 0; padding: 0; }
.about__troubleshooting li { border-top: 1px solid var(--line); display: grid; gap: 18px; grid-template-columns: 160px 1fr; padding: 15px 0; }
.about__troubleshooting li:first-child { border-top: 0; }
.about__troubleshooting b { font-size: .84rem; }
.about__troubleshooting span { color: var(--muted); font-size: .8rem; line-height: 1.55; }
.about__faq { display: grid; gap: clamp(34px, 7vw, 90px); grid-template-columns: .7fr 1.3fr; }
.about__faq > div:last-child { display: grid; gap: 9px; }
.about__faq details { background: color-mix(in srgb, var(--panel) 90%, transparent); border: 1px solid var(--line); border-radius: var(--radius, 12px); padding: 16px 18px; }
.about__faq summary { cursor: pointer; font-size: .86rem; font-weight: 750; }
.about__faq details p { color: var(--muted); font-size: .8rem; line-height: 1.6; margin: 12px 0 0; }
.about__cta { background: var(--text); border-color: var(--text); color: var(--bg); padding: clamp(28px, 5vw, 54px); }
.about__cta h2 { color: var(--bg); }
.about__cta > div > p:last-child { color: color-mix(in srgb, var(--bg) 70%, transparent); }
.about__cta .about__eyebrow { color: color-mix(in srgb, var(--bg) 65%, transparent); }
.about__cta .btn--primary { background: var(--bg); color: var(--text); }
@media (max-width: 1000px) {
  .about__hero, .about__plain, .about__formats-guide, .about__privacy, .about__troubleshooting, .about__faq { grid-template-columns: 1fr; }
  .about__hero { min-height: auto; padding-top: 48px; }
  .about__workflow, .about__control-grid, .about__use-cases { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .about__title { font-size: clamp(3.3rem, 17vw, 5rem); }
  .about__hero-visual figcaption { position: static; }
  .about__strip, .about__workflow, .about__control-grid, .about__use-cases { grid-template-columns: 1fr; }
  .about__troubleshooting li { grid-template-columns: 1fr; gap: 6px; }
  .about__cta { align-items: stretch; flex-direction: column; }
  .about__plain > div:first-child, .about__section-head, .about__formats-guide > div:first-child, .about__troubleshooting > div:first-child, .about__faq > div:first-child { border-radius: 18px; padding: 22px 18px; }
}