:root {
  --archive-navy: #0a2342;
  --archive-ink: #18283a;
  --archive-muted: #647286;
  --archive-line: #d9dee5;
  --archive-paper: #f7f5ef;
  --archive-white: #ffffff;
  --archive-gold: #a9813f;
}

* { box-sizing: border-box; }

.contents-page {
  margin-top: 79px;
  padding: 0 0 7rem;
  color: var(--archive-ink);
  background:
    linear-gradient(90deg, rgba(10,35,66,.025) 1px, transparent 1px) 0 0 / 96px 96px,
    var(--archive-paper);
}

.contents-shell {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  gap: .65rem;
  align-items: center;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--archive-line);
  color: var(--archive-muted);
  font-size: .76rem;
}

.breadcrumb a { color: inherit; text-decoration: none; }
.breadcrumb a:hover { color: var(--archive-navy); }

.archive-header {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 0 2rem;
  padding: 5.25rem 0 4.75rem;
  border-bottom: 2px solid var(--archive-navy);
}

.archive-kicker {
  grid-column: 1;
  margin: .55rem 0 0;
  color: var(--archive-gold);
  font: 600 .72rem/1.5 Montserrat, sans-serif;
  letter-spacing: .2em;
}

.archive-header h1 {
  grid-column: 2;
  margin: 0;
  color: var(--archive-navy);
  font: 600 clamp(2.8rem, 7vw, 5.4rem)/1.05 'Noto Sans JP', sans-serif;
  letter-spacing: -.055em;
}

.archive-intro {
  grid-column: 2;
  max-width: 640px;
  margin: 1.75rem 0 0;
  color: var(--archive-muted);
  font-size: .98rem;
  line-height: 2;
}

.archive { padding-top: 2.5rem; }

.archive-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--archive-line);
}

.archive-heading h2 {
  margin: 0;
  color: var(--archive-navy);
  font: 600 1rem/1.5 'Noto Sans JP', sans-serif;
  letter-spacing: .05em;
}

.archive-heading p {
  margin: 0;
  color: var(--archive-muted);
  font-size: .76rem;
}

.content-list { border-bottom: 1px solid var(--archive-line); }

.adoption-thumb{background:#eaf1ee}.adoption-mini{width:82%;padding:1rem;border:1px solid #b8c9c5;border-radius:10px;background:#fff;box-shadow:0 10px 24px rgba(10,35,66,.1)}.adoption-mini>b{display:block;color:#647286;font-size:.65rem}.adoption-mini>strong{display:block;margin:.25rem 0 .65rem;color:#0a2342;font-size:1.05rem}.adoption-mini>span{display:grid;grid-template-columns:4.8rem 1fr;gap:.4rem;padding:.45rem 0;border-top:1px solid #d9dee5;color:#176f69;font-size:.62rem;font-weight:700}.adoption-mini i{color:#33475c;font-style:normal;font-weight:500}

.content-item { border-top: 1px solid var(--archive-line); }
.content-item:first-child { border-top: 0; }

.content-item > a {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 280px;
  gap: 2rem;
  align-items: center;
  min-height: 285px;
  padding: 2.25rem 0;
  color: inherit;
  text-decoration: none;
}

.content-meta {
  align-self: start;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .7rem;
  padding-top: .25rem;
}

.content-kind {
  display: inline-flex;
  padding: .35rem .65rem;
  border: 1px solid #cbb98f;
  border-radius: 999px;
  color: #725823;
  background: rgba(255,255,255,.45);
  font-size: .7rem;
  font-weight: 600;
}

.content-meta time {
  color: var(--archive-muted);
  font: 500 .72rem/1.4 Montserrat, sans-serif;
  letter-spacing: .04em;
}

.content-copy h3 {
  margin: 0;
  color: var(--archive-navy);
  font: 600 clamp(1.45rem, 3vw, 2.05rem)/1.55 'Noto Sans JP', sans-serif;
  letter-spacing: -.025em;
}

.content-copy p {
  max-width: 520px;
  margin: 1rem 0 0;
  color: var(--archive-muted);
  font-size: .9rem;
  line-height: 1.9;
}

.content-link {
  display: inline-block;
  margin-top: 1.35rem;
  color: var(--archive-navy);
  font-size: .82rem;
  font-weight: 600;
}

.content-link span { display: inline-block; transition: transform .2s ease; }
.content-item > a:hover .content-link span { transform: translateX(5px); }
.content-item > a:hover h3 { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .25em; }

.content-thumb {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid #d4dae1;
  background: #e7ebef;
}

.content-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(10,35,66,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(10,35,66,.045) 1px, transparent 1px);
  background-size: 24px 24px;
}

.change-request-thumb { background: #ece9e1; }
.change-request-mini { position: relative; z-index: 1; display: grid; gap: .55rem; width: 82%; padding: 1.15rem; border: 1px solid #d2d9e0; border-top: 4px solid var(--archive-gold); border-radius: 3px; background: #fff; box-shadow: 0 14px 35px rgba(10,35,66,.12); }
.change-request-mini b { padding-bottom: .5rem; border-bottom: 2px solid var(--archive-navy); color: var(--archive-navy); font-size: .72rem; }
.change-request-mini span { display: grid; grid-template-columns: 3.2rem 1fr; gap: .55rem; color: #36506a; font-size: .62rem; font-weight: 700; }
.change-request-mini i { color: #785e2d; font-style: normal; }

.memo-sheet {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: .6rem .7rem;
  width: 82%;
  padding: 1.25rem;
  border-radius: 3px;
  background: var(--archive-white);
  box-shadow: 0 14px 35px rgba(10,35,66,.12);
}

.memo-sheet span {
  padding: .25rem .35rem;
  color: #745c2d;
  background: #efe8d8;
  font-size: .58rem;
  font-weight: 700;
  text-align: center;
}

.memo-sheet b {
  align-self: center;
  color: #214363;
  font-size: .64rem;
}

.legacy-inventory-thumb { background: #edf0ee; }

.legacy-inventory-mini-sheet {
  position: relative;
  z-index: 1;
  display: grid;
  gap: .45rem;
  width: 80%;
  padding: 1rem;
  border-top: 5px solid var(--archive-navy);
  background: var(--archive-white);
  box-shadow: 0 14px 35px rgba(10,35,66,.12);
}

.legacy-inventory-mini-sheet span {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: .5rem;
  align-items: center;
  color: #214363;
  font-size: .64rem;
  font-weight: 600;
}

.legacy-inventory-mini-sheet i {
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: #2b6757;
  font-style: normal;
  font-size: .55rem;
}

.access-thumb { background: #e9eef3; }

.access-window {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
  width: 80%;
  padding: 1.25rem;
  border-top: 5px solid var(--archive-navy);
  background: var(--archive-white);
  box-shadow: 0 14px 35px rgba(10,35,66,.12);
}

.access-window span {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border-radius: 50%;
  color: #6b7888;
  background: #edf0f3;
  font-size: .55rem;
}

.access-window span:first-child { color: #fff; background: var(--archive-gold); }
.access-window strong { grid-column: 1 / -1; margin: .85rem 0 .2rem; color: var(--archive-navy); font-size: .7rem; }
.access-window i { grid-column: 1 / -1; height: 7px; border-radius: 99px; background: #e4e8ec; }
.access-window i:last-child { width: 70%; }

.gap-decision-thumb {
  background: linear-gradient(135deg, #edf1f4 0 50%, #e5ddd0 50% 100%);
}

.gap-decision-mini-map {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
  width: 82%;
  padding: 1rem;
  background: #fff;
  box-shadow: 0 14px 35px rgba(10,35,66,.12);
}

.gap-decision-mini-map b {
  grid-column: 1 / -1;
  padding: .55rem;
  color: #fff;
  background: var(--archive-navy);
  font-size: .65rem;
  text-align: center;
}

.gap-decision-mini-map span {
  padding: .45rem .25rem;
  border: 1px solid #d7dde3;
  color: #536274;
  background: #f8f8f6;
  font-size: .55rem;
  font-weight: 600;
  text-align: center;
}

.priority-sheet-thumb { background: linear-gradient(145deg, #e9eef3, #ece3d3); }

.priority-sheet-mini {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 5px;
  width: 84%;
  padding: 1rem;
  background: #fff;
  box-shadow: 0 14px 35px rgba(10,35,66,.12);
}

.priority-sheet-mini b { padding: .5rem; color: #fff; background: var(--archive-navy); font-size: .65rem; text-align: center; }
.priority-sheet-mini span { display: grid; grid-template-columns: 24px 1fr auto; gap: .4rem; align-items: center; padding: .45rem; border: 1px solid #d7dde3; color: #40546a; font-size: .55rem; font-weight: 600; }
.priority-sheet-mini i { display: grid; width: 22px; height: 22px; place-items: center; border-radius: 50%; color: #fff; background: #0a2342; font-style: normal; }
.priority-sheet-mini em { color: #745923; font-style: normal; }

@media (max-width: 900px) {
  .content-item > a { grid-template-columns: 120px minmax(0, 1fr) 220px; gap: 1.5rem; }
}

@media (max-width: 760px) {
  .contents-page { margin-top: 69px; padding-bottom: 4.5rem; background-size: 64px 64px; }
  .contents-shell { width: min(100% - 32px, 640px); }
  .breadcrumb { padding: 1rem 0; }
  .archive-header { display: block; padding: 3.5rem 0 3rem; }
  .archive-kicker { margin-bottom: 1rem; }
  .archive-header h1 { font-size: clamp(2.7rem, 15vw, 4rem); }
  .archive-intro { margin-top: 1.5rem; font-size: .9rem; line-height: 1.9; }
  .archive { padding-top: 2rem; }
  .content-item > a { grid-template-columns: 1fr; gap: 1.3rem; padding: 2rem 0 2.5rem; }
  .content-meta { flex-direction: row; align-items: center; gap: .8rem; }
  .content-copy { grid-row: 2; }
  .content-copy h3 { font-size: 1.4rem; line-height: 1.55; }
  .content-copy p { margin-top: .8rem; }
  .content-link { margin-top: 1rem; }
  .content-thumb { grid-row: 3; width: 100%; aspect-ratio: 16 / 10; }
  .desktop-break { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .content-link span { transition: none; }
}