.about-shell { width: min(1380px, calc(100% - 48px)); margin: 0 auto; }
.about-hero { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(310px, .55fr); gap: clamp(28px, 6vw, 92px); align-items: center; min-height: 620px; padding: 76px 0 68px; }
.about-hero-copy { max-width: 840px; }
.about-hero .eyebrow, .about-article .chapter-kicker, .section-heading span { color: var(--cyan); font: 900 12px/1.3 ui-monospace, "Cascadia Mono", monospace; letter-spacing: .11em; }
.about-hero .eyebrow span { display: inline-block; width: 9px; height: 9px; margin-right: 9px; background: var(--accent); box-shadow: 5px 0 0 var(--cyan); }
.about-hero h1 { margin: 18px 0 16px; font-size: clamp(58px, 8.4vw, 122px); line-height: .86; letter-spacing: -.075em; }
.about-hero h1 span { display: block; color: var(--muted); font-size: .38em; line-height: 1.25; letter-spacing: -.035em; }
.hero-lede { margin: 30px 0 12px; font-size: clamp(22px, 2.1vw, 31px); font-weight: 750; }
.about-hero-copy > p:not(.eyebrow,.hero-lede,.hero-quote) { max-width: 760px; color: var(--muted); font-size: 18px; }
.hero-quote { margin: 22px 0; padding-left: 20px; border-left: 6px solid var(--accent); font-size: clamp(28px, 4vw, 54px); font-weight: 900; letter-spacing: -.045em; }
.hero-quote em { color: var(--accent); font-style: normal; }
.hero-contact-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.x-contact, .mini-copy { display: grid; grid-template-columns: auto auto; gap: 0 10px; align-items: center; min-height: 66px; padding: 10px 15px; border: 1px solid var(--line-strong); color: var(--text); background: var(--surface); text-decoration: none; }
.x-contact > span, .mini-copy > span { grid-row: 1 / 3; display: grid; place-items: center; width: 42px; height: 42px; color: var(--accent-ink); background: var(--accent); font-weight: 900; }
.x-contact b, .mini-copy b { font: 900 16px/1.2 ui-monospace, "Cascadia Mono", monospace; }
.x-contact small, .mini-copy small { color: var(--muted); font-size: 11px; font-weight: 800; text-align: left; }
.mini-copy { font: inherit; cursor: pointer; }
.identity-card { position: relative; padding: 42px 32px 30px; overflow: hidden; border: 1px solid var(--line-strong); background: linear-gradient(145deg, var(--surface-raised), var(--surface-soft)); box-shadow: 14px 14px 0 color-mix(in srgb, var(--accent) 12%, transparent); }
.identity-card::after { content: "HUAHUA"; position: absolute; right: -23px; bottom: 56px; color: color-mix(in srgb, var(--text) 5%, transparent); font: 900 72px/1 ui-monospace, monospace; transform: rotate(-90deg); }
.identity-pixel-flower { display: grid; place-items: center; width: 82px; height: 82px; margin-bottom: 38px; color: var(--accent-ink); background: var(--accent); font-size: 46px; box-shadow: 9px 9px 0 color-mix(in srgb, var(--cyan) 45%, transparent); }
.identity-card > p { margin: 0 0 6px; color: var(--muted); font-weight: 800; }
.identity-card > strong { display: block; max-width: 290px; margin-bottom: 30px; font-size: clamp(25px, 3vw, 39px); line-height: 1.08; letter-spacing: -.035em; }
.identity-card dl { position: relative; z-index: 1; margin: 0; }
.identity-card dl > div { display: grid; grid-template-columns: 54px 1fr; padding: 11px 0; border-top: 1px solid var(--line); }
.identity-card dt { color: var(--cyan); font: 900 11px ui-monospace, monospace; }
.identity-card dd { margin: 0; color: var(--muted); font-weight: 700; }

.asset-section { padding: 70px 0 90px; border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 30px; }
.section-heading h2 { margin: 6px 0 0; font-size: clamp(34px, 5vw, 68px); line-height: .95; letter-spacing: -.055em; }
.section-heading > p { max-width: 550px; margin: 0; color: var(--muted); font-size: 15px; }
.asset-grid { display: grid; gap: 24px; }
.asset-card { margin: 0; border: 1px solid var(--line-strong); background: var(--surface); }
.asset-card > a { display: block; padding: 16px; background: repeating-conic-gradient(color-mix(in srgb, var(--line) 35%, transparent) 0 25%, transparent 0 50%) 0 / 18px 18px; }
.asset-card img { display: block; width: 100%; height: auto; max-height: none; object-fit: contain; background: #cfc5bc; }
.asset-card figcaption { display: flex; justify-content: space-between; gap: 20px; align-items: center; padding: 18px 20px; border-top: 1px solid var(--line); }
.asset-card figcaption > div:first-child { display: grid; }
.asset-card figcaption b { font-size: 18px; }
.asset-card figcaption small { color: var(--muted); }
.asset-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.asset-actions a { padding: 8px 11px; border: 1px solid var(--line-strong); text-decoration: none; font-size: 13px; font-weight: 800; }
.asset-actions a:hover { border-color: var(--accent); color: var(--accent); }
.open-source-note { display: grid; grid-template-columns: minmax(230px,.75fr) 1.5fr; gap: 28px; margin-top: 24px; padding: 26px; border: 2px solid var(--accent); background: color-mix(in srgb, var(--accent) 7%, var(--surface)); }
.open-source-note strong { color: var(--accent); font-size: 22px; }
.open-source-note p { margin: 0; color: var(--muted); }

.about-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: clamp(34px, 6vw, 90px); padding: 58px 0 100px; border-top: 1px solid var(--line); }
.about-toc { position: sticky; top: 95px; align-self: start; display: grid; border: 1px solid var(--line); background: var(--surface); }
.about-toc span { padding: 13px 14px; color: var(--accent-ink); background: var(--accent); font: 900 11px ui-monospace, monospace; letter-spacing: .1em; }
.about-toc a { padding: 11px 14px; border-top: 1px solid var(--line); color: var(--muted); text-decoration: none; font-size: 13px; font-weight: 800; }
.about-toc a:hover { padding-left: 19px; color: var(--text); background: var(--surface-raised); }
.about-article { min-width: 0; }
.story-section { display: grid; grid-template-columns: 74px minmax(0,1fr); gap: 24px; padding: 0 0 74px; scroll-margin-top: 100px; }
.chapter-number { color: var(--accent); font: 900 clamp(31px, 4vw, 47px)/1 ui-monospace, monospace; }
.chapter-kicker { margin: 0 0 8px; }
.story-section h2 { margin: 0 0 24px; font-size: clamp(31px, 4.3vw, 58px); line-height: 1; letter-spacing: -.045em; }
.story-section p { max-width: 830px; margin: 0 0 18px; color: var(--muted); font-size: 17px; }
.story-section strong { color: var(--text); }
.story-section .topic-line { color: var(--text); font-size: clamp(26px, 4vw, 44px); font-weight: 900; }
.topic-line i { color: var(--accent); font-style: normal; }
.story-section blockquote { max-width: 830px; margin: 30px 0; padding: 24px 28px; border-left: 6px solid var(--accent); color: var(--text); background: var(--surface); font-size: clamp(20px, 2.2vw, 28px); font-weight: 800; }
.feature-section > div:last-child, .boundary-section > div:last-child { padding: 28px; border: 1px solid var(--line-strong); background: var(--surface); }
.feature-section > div:last-child { box-shadow: 9px 9px 0 color-mix(in srgb, var(--accent) 14%, transparent); }
.boundary-section > div:last-child { border-color: var(--cyan); }
.community-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0; }
.project-section { padding: 72px 0 90px; scroll-margin-top: 90px; border-top: 1px solid var(--line); }
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.project-grid > a { display: grid; align-content: start; min-height: 330px; padding: 24px; border: 1px solid var(--line-strong); background: var(--surface); text-decoration: none; transition: transform .15s ease, border-color .15s ease; }
.project-grid > a:hover { transform: translateY(-4px); border-color: var(--accent); }
.project-grid b { color: var(--accent); font: 900 38px/1 ui-monospace, monospace; }
.project-grid span { margin: 50px 0 10px; font-size: 24px; font-weight: 900; }
.project-grid p { color: var(--muted); font-size: 15px; }
.project-grid em { align-self: end; margin-top: auto; color: var(--cyan); font-style: normal; font-weight: 900; }
.blind-box-note { margin: 26px 0 0; padding: 23px; border: 1px dashed var(--line-strong); color: var(--muted); font-size: 18px; }
.blind-box-note strong { color: var(--accent); }
.final-manifesto { padding: clamp(50px, 8vw, 110px) 30px; border: 1px solid var(--line-strong); text-align: center; background: radial-gradient(circle at 50% 40%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 45%), var(--surface-soft); }
.final-manifesto > span { color: var(--accent); font-size: 30px; letter-spacing: .3em; }
.final-manifesto h2 { margin: 22px auto; font-size: clamp(42px, 7vw, 92px); line-height: .95; letter-spacing: -.065em; }
.final-manifesto p { color: var(--muted); font-size: 18px; }
.final-manifesto > div { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 34px; }
.toast { position: fixed; right: 20px; bottom: 20px; z-index: 100; max-width: min(420px, calc(100vw - 40px)); padding: 12px 16px; border: 1px solid var(--accent); color: var(--accent-ink); background: var(--accent); font-weight: 900; opacity: 0; transform: translateY(14px); pointer-events: none; transition: .2s ease; }
.toast.is-visible { opacity: 1; transform: translateY(0); }
.adult-dialog { width: min(560px, calc(100% - 32px)); padding: 0; border: 1px solid var(--line-strong); color: var(--text); background: var(--surface); }
.adult-dialog::backdrop { background: rgba(3,4,9,.84); backdrop-filter: blur(8px); }
.adult-card { padding: 30px; }
.adult-card h2 { margin: 8px 0 12px; font-size: 34px; }
.adult-card > p:not(.eyebrow) { color: var(--muted); }
.adult-card > div { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }

@media (max-width: 900px) {
  .about-hero { grid-template-columns: 1fr; min-height: auto; }
  .identity-card { max-width: 560px; }
  .about-layout { grid-template-columns: 1fr; }
  .about-toc { position: static; grid-template-columns: repeat(2, 1fr); }
  .about-toc span { grid-column: 1 / -1; }
  .project-grid { grid-template-columns: 1fr; }
  .project-grid > a { min-height: 250px; }
}
@media (max-width: 700px) {
  .about-shell { width: min(100% - 24px, 1380px); }
  .community-banner { display: grid; gap: 10px; padding: 12px; }
  .community-invite { display: none; }
  .knowledge-header { position: relative; align-items: flex-start; padding: 12px; }
  .knowledge-brand small { display: none; }
  .header-actions { flex-wrap: wrap; justify-content: flex-end; }
  .header-actions a, .header-actions button { min-height: 34px; padding: 6px 8px; font-size: 12px; }
  .about-hero { padding: 48px 0; }
  .about-hero h1 { font-size: clamp(55px, 19vw, 84px); }
  .identity-card { padding: 30px 22px; }
  .section-heading, .asset-card figcaption, .open-source-note { display: grid; }
  .asset-card > a { padding: 7px; }
  .asset-actions a { flex: 1; text-align: center; }
  .about-toc { grid-template-columns: 1fr; }
  .about-toc span { grid-column: auto; }
  .story-section { grid-template-columns: 46px minmax(0,1fr); gap: 12px; padding-bottom: 58px; }
  .chapter-number { font-size: 26px; }
  .story-section p { font-size: 16px; }
  .feature-section > div:last-child, .boundary-section > div:last-child { padding: 19px; }
  .final-manifesto { padding-inline: 16px; }
}