.page-home {
  --home-gap: clamp(18px, 3vw, 36px);
  --home-border: 2px solid var(--line-strong);
  display: block;
  background: var(--deep);
  color: var(--paper);
  overflow-x: clip;
}

.page-home .section {
  padding-block: clamp(44px, 7vw, 92px);
}

.page-home .section--tight {
  padding-block: clamp(28px, 4vw, 52px);
}

.page-home .h1,
.page-home .h2,
.page-home .h3 {
  color: inherit;
}

.page-home .num {
  font-family: var(--font-mono);
  letter-spacing: -.02em;
}

.page-home .eyebrow {
  color: var(--cyan);
}

.page-home a:focus-visible,
.page-home summary:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.page-home .status-dot--cyan {
  background: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-home .hero-grid {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .hero-left > * + * {
  margin-top: 16px;
}

.page-home .hero-left .lead {
  color: var(--paper-dim);
}

.page-home .hero-tags {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-home .hero-tag {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 88px;
  padding: 13px 13px 12px;
  border: var(--home-border);
  background: var(--panel);
  color: var(--paper);
  text-decoration: none;
  box-shadow: 5px 5px 0 rgba(3, 10, 18, .55);
  transition: transform .18s var(--ease), background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-home .hero-tag:hover,
.page-home .hero-tag:focus-visible {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink);
  transform: translate(-2px, -2px);
}

.page-home .hero-tag__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-home .hero-tag:hover .hero-tag__kicker {
  color: rgba(7, 16, 24, .7);
}

.page-home .hero-tag__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -.01em;
  line-height: 1.3;
}

.page-home .hero-tag__meta {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--paper-dim);
}

.page-home .hero-tag:hover .hero-tag__meta {
  color: rgba(7, 16, 24, .75);
}

.page-home .hero-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--paper-dim);
}

.page-home .hero-board {
  border: var(--home-border);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  align-self: start;
}

.page-home .board-media {
  margin: 0;
  border-bottom: 1px solid var(--line-dark);
  overflow: hidden;
}

.page-home .board-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-home .board-body {
  padding: 16px 16px 18px;
  display: grid;
  gap: 12px;
  justify-items: start;
}

.page-home .board-head {
  display: grid;
  gap: 4px;
}

.page-home .board-ver {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.page-home .board-ver .num {
  font-size: 26px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.page-home .board-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 3px 8px;
  border: 1px solid rgba(57, 230, 208, .45);
  color: var(--cyan);
}

.page-home .board-time {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--paper-dim);
}

.page-home .board-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  width: 100%;
}

.page-home .board-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(242, 235, 221, .86);
}

.page-home .board-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

/* ---------- 五类入口 ---------- */
.page-home .sec-head {
  max-width: 64ch;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-home .sec-lead {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-home .entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-home .entry {
  display: flex;
}

.page-home .entry__link {
  display: grid;
  gap: 8px;
  align-content: start;
  width: 100%;
  padding: 18px;
  border: var(--home-border);
  background: rgba(16, 42, 68, .72);
  color: var(--paper);
  text-decoration: none;
  transition: transform .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}

.page-home .entry__link:hover,
.page-home .entry__link:focus-visible {
  transform: translateY(-4px);
  border-color: var(--signal);
  background: var(--panel);
}

.page-home .entry__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-home .entry__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--signal);
}

.page-home .entry__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -.015em;
  line-height: 1.25;
}

.page-home .entry__who {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--cyan);
}

.page-home .entry__desc {
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(242, 235, 221, .82);
}

.page-home .entry__go {
  margin-top: 4px;
  font-size: 13px;
  font-weight: 700;
  color: var(--signal);
}

/* ---------- 新手路径 ---------- */
.page-home .start-sheet {
  color: var(--ink);
  padding: clamp(22px, 4vw, 44px);
}

.page-home .start-sheet .eyebrow {
  color: var(--signal);
}

.page-home .start-sheet .sec-lead {
  color: rgba(7, 16, 24, .74);
}

.page-home .steps {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr);
}

.page-home .step {
  border-top: 4px solid var(--ink);
  padding-top: 14px;
}

.page-home .step__no {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 32px;
  line-height: 1;
  color: var(--signal);
}

.page-home .step .h3 {
  margin: 8px 0 6px;
  font-size: 19px;
  line-height: 1.35;
  color: var(--ink);
}

.page-home .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(7, 16, 24, .78);
}

.page-home .step__mark {
  display: inline-block;
  margin-top: 12px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--ink);
  color: var(--paper);
}

.page-home .start-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: 26px;
}

.page-home .link-ink {
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--signal);
  padding-bottom: 2px;
}

/* ---------- 规模带 ---------- */
.page-home .scale-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  background: var(--line-dark);
  border: var(--home-border);
}

.page-home .scale-list li {
  background: var(--night);
  padding: 16px 14px;
}

.page-home .scale-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(21px, 2.6vw, 28px);
  font-weight: 700;
  color: var(--cyan);
}

.page-home .scale-cap {
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--paper-dim);
}

/* ---------- 版本时间轴 ---------- */
.page-home .history-grid {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .history-visual {
  margin: 0;
  border: var(--home-border);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-home .history-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .history-visual figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--line-dark);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--paper-dim);
}

.page-home .tl {
  margin-top: 20px;
  padding-left: 16px;
  border-left: 2px solid var(--line-strong);
  display: grid;
  gap: 10px;
}

.page-home .tl-node {
  border: 1px solid var(--line-dark);
  background: rgba(16, 42, 68, .6);
}

.page-home .tl-node > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
}

.page-home .tl-node > summary::-webkit-details-marker {
  display: none;
}

.page-home .tl-node > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--cyan);
}

.page-home .tl-node[open] > summary::after {
  content: "–";
}

.page-home .tl-ver {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 3px 8px;
  color: var(--cyan);
  border: 1px solid rgba(57, 230, 208, .4);
  background: rgba(57, 230, 208, .1);
}

.page-home .tl-name {
  flex: 1 1 auto;
  font-size: 15.5px;
  line-height: 1.4;
}

.page-home .tl-node[open] {
  border-color: var(--line-strong);
  background: var(--panel);
}

.page-home .tl-node p {
  margin: 0;
  padding: 0 14px 14px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(242, 235, 221, .84);
}

/* ---------- 小屏与旧版 ---------- */
.page-home .mobile-grid {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .phone-figure {
  margin: 0;
  padding: 14px;
  border: var(--home-border);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  max-width: 340px;
}

.page-home .phone-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 2px;
}

.page-home .phone-figure figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-home .mobile-body .sec-lead {
  max-width: 62ch;
}

.page-home .mobile-points {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-dark);
}

.page-home .mobile-points li {
  position: relative;
  padding: 12px 0 12px 22px;
  border-bottom: 1px solid var(--line-dark);
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(242, 235, 221, .86);
}

.page-home .mobile-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.08em;
  width: 8px;
  height: 8px;
  background: var(--signal);
}

.page-home .mobile-points .num {
  color: var(--cyan);
}

.page-home .archive-card {
  margin-top: 22px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: var(--home-border);
  background: var(--panel);
  overflow: hidden;
}

.page-home .archive-card img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .archive-body {
  padding: 16px 18px 18px;
}

.page-home .archive-body .h3 {
  margin: 0;
  font-size: 19px;
  line-height: 1.35;
}

.page-home .archive-body p {
  margin: 8px 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(242, 235, 221, .82);
}

.page-home .archive-body a {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 2px solid var(--signal);
  padding-bottom: 2px;
}

/* ---------- 联系收束 ---------- */
.page-home .contact-sheet {
  display: grid;
  gap: var(--home-gap);
  padding: clamp(22px, 4vw, 44px);
  border: var(--home-border);
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow-hard);
}

.page-home .contact-sheet .eyebrow {
  color: var(--signal);
}

.page-home .contact-sheet .h2 {
  color: var(--ink);
}

.page-home .contact-text {
  margin: 10px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(7, 16, 24, .78);
}

.page-home .contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: 22px;
}

.page-home .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .contact-list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-paper);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-home .contact-key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--signal);
  padding-top: 3px;
}

.page-home .contact-val {
  color: var(--ink);
  word-break: break-word;
}

.page-home .contact-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(7, 16, 24, .68);
}

.page-home .contact-links {
  margin: 14px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.page-home .contact-links a {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--line-paper);
  padding-bottom: 2px;
}

@media (min-width: 620px) {
  .page-home .archive-card {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: stretch;
  }

  .page-home .archive-card img {
    height: 100%;
    min-height: 170px;
  }
}

@media (min-width: 720px) {
  .page-home .hero-tags {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .hero-tags > li:first-child {
    grid-column: span 2;
  }

  .page-home .entry-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .scale-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-home .contact-sheet {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-home .history-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-home .mobile-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-home .entry-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero-tag,
  .page-home .entry__link {
    transition: none;
  }

  .page-home .hero-tag:hover,
  .page-home .hero-tag:focus-visible,
  .page-home .entry__link:hover,
  .page-home .entry__link:focus-visible {
    transform: none;
  }
}