/* Editorial launch page. DESIGN_VARIANCE: 5; MOTION_INTENSITY: 2;
   VISUAL_DENSITY: 3. Native CSS; system sans fonts; square geometry. */
:root { color-scheme: light dark; --paper: #f9f9f7; --ink: #242724; --muted: #60655f; --line: #d3d7d1; --accent: #375b45; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 7px; }
.skip { position: absolute; top: -80px; left: 20px; padding: 12px; background: var(--paper); z-index: 2; }
.skip:focus { top: 12px; }
.page { width: min(100% - 96px, 1440px); margin-inline: auto; }
header { height: 80px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.wordmark { display: inline-flex; align-items: center; gap: 13px; font-size: 27px; font-weight: 600; letter-spacing: -1.3px; line-height: 1; }
.brand-line { width: 32px; height: 2px; background: currentColor; }
nav { display: flex; gap: 34px; font-size: 13px; }
nav a { display: inline-flex; align-items: center; min-height: 44px; white-space: nowrap; }
.intro { padding: 42px 0 30px; }
.eyebrow { margin: 0 0 16px; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
h1 { margin: 0; font-size: clamp(28px, 3vw, 45px); font-weight: 500; letter-spacing: -.04em; line-height: 1.3; }
.intro-copy { margin: 15px 0 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.cover { margin: 0; }
.cover img { display: block; width: 100%; height: clamp(260px, 32vw, 440px); object-fit: cover; object-position: center 40%; background: var(--line); }
figcaption { margin-top: 10px; color: var(--muted); font-size: 11px; text-align: right; }
.categories { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; padding: 32px 0 38px; border-bottom: 1px solid var(--line); align-items: start; }
details { min-width: 0; }
summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 70px; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
.category-name { font-size: 22px; line-height: 1.45; font-weight: 400; }
.category-name span { display: block; color: var(--muted); font-size: 12px; margin-top: 5px; letter-spacing: .03em; }
.expand { font-size: 26px; font-weight: 300; color: var(--muted); transition: transform .18s ease; }
summary:hover .category-name, summary:hover .expand { color: var(--accent); }
summary:active .expand { transform: scale(.9); }
details[open] .expand { transform: rotate(45deg); }
.category-copy { padding: 13px 26px 0 0; font-size: 13px; line-height: 1.85; }
.category-copy p { margin: 0 0 10px; }
.category-copy .pending { font-size: 11px; color: var(--muted); }
.about { padding: 48px 0 42px; }
h2 { margin: 0 0 12px; font-size: 20px; font-weight: 400; line-height: 1.5; }
.about p { color: var(--muted); margin: 0; font-size: 13px; line-height: 1.9; }
footer { border-top: 1px solid var(--line); padding: 22px 0 26px; display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; letter-spacing: .04em; }
@media (min-width: 1440px) { .intro { padding-top: 48px; } }
@media (max-width: 767px) {
  .page { width: calc(100% - 40px); }
  header { height: 70px; }
  .wordmark { font-size: 24px; }
  .brand-line { width: 22px; }
  nav { gap: 20px; font-size: 12px; }
  .intro { padding: 34px 0 25px; }
  .eyebrow { font-size: 10px; margin-bottom: 16px; }
  h1 { font-size: clamp(25px, 6.8vw, 39px); }
  .intro-copy { font-size: 13px; margin-top: 12px; }
  .intro-copy span { display: block; }
  .cover img { height: 340px; object-position: 80% center; }
  .categories { grid-template-columns: 1fr; gap: 0; padding: 18px 0; }
  summary { min-height: 76px; padding: 12px 0; }
  .category-name { display: flex; align-items: baseline; gap: 20px; font-size: 20px; }
  .category-name span { margin: 0; font-size: 12px; }
  .category-copy { padding: 0 32px 12px 0; }
  .about { padding: 32px 0; }
  h2 { font-size: 18px; }
  .about span { display: block; }
}
@media (max-width: 360px) { .page { width: calc(100% - 32px); } nav { gap: 16px; } .brand-line { display: none; } .cover img { height: 300px; } }
@media (prefers-color-scheme: dark) { :root { --paper: #1c201d; --ink: #ebeee9; --muted: #b2bbb1; --line: #444e43; --accent: #b1d1b9; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .expand { transition: none; } }