.page-home {
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 深浅区块基础 ---------- */
.page-home .section--night {
  background: var(--night);
  color: var(--night-text);
}

.page-home .section--night-2 {
  background: var(--black);
  color: var(--night-text);
}

.page-home .section--paper .lede,
.page-home .section--paper-2 .lede {
  color: var(--ink-muted);
}

.page-home .section--paper .eyebrow,
.page-home .section--paper-2 .eyebrow {
  color: var(--ice-ink);
}

.page-home .section--night .eyebrow,
.page-home .section--night-2 .eyebrow {
  color: var(--pulse);
}

/* ---------- 01 首屏入口 ---------- */
.page-home .entry {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(38px, 6vw, 84px) clamp(54px, 8vw, 104px);
}

.page-home .entry-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-home .entry-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
}

.page-home .entry-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(90% 62% at 84% 4%, rgba(53, 214, 164, 0.18), transparent 62%),
    radial-gradient(72% 54% at 6% 100%, rgba(127, 211, 247, 0.14), transparent 60%),
    linear-gradient(180deg, rgba(11, 16, 36, 0.62) 0%, rgba(11, 16, 36, 0.9) 58%, var(--night) 100%);
}

.page-home .entry-grid {
  display: grid;
  gap: 36px;
}

@media (min-width: 960px) {
  .page-home .entry-grid {
    grid-template-columns: minmax(0, 1fr) 296px;
    gap: 56px;
    align-items: start;
  }
}

.page-home .entry-main .h-display {
  color: #ffffff;
  margin: 14px 0 0;
  max-width: 24ch;
}

.page-home .entry-main .lede {
  margin: 18px 0 0;
  max-width: 56ch;
  color: var(--night-text);
}

.page-home .entry-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-home .entry .chip {
  display: inline-flex;
  flex-wrap: wrap;
  white-space: normal;
  margin: 22px 0 0;
}

.page-home .status-strip {
  list-style: none;
  margin: 30px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--night-line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
}

.page-home .status-strip li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--night-muted);
}

.page-home .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pulse);
  box-shadow: 0 0 0 0 rgba(53, 214, 164, 0.5);
  animation: home-pulse 2.6s var(--ease) infinite;
}

@keyframes home-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(53, 214, 164, 0.5); }
  50% { box-shadow: 0 0 0 9px rgba(53, 214, 164, 0); }
}

/* ---------- 章节跟随目录 ---------- */
.page-home .chapter-index {
  border: 1px solid var(--night-line);
  border-radius: var(--radius-md);
  background: rgba(4, 7, 15, 0.55);
  padding: 20px 18px 16px;
  backdrop-filter: blur(8px);
}

.page-home .chapter-index-title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--night-muted);
}

.page-home .chapter-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-home .chapter-link {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px;
  border-radius: 10px;
  color: var(--night-text);
  text-decoration: none;
  font-size: 14px;
  transition: color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .chapter-link:hover {
  background: rgba(127, 211, 247, 0.08);
  color: #ffffff;
}

.page-home .chapter-link[aria-current="true"] {
  color: var(--pulse);
}

.page-home .chapter-idx {
  font-size: 12px;
  color: var(--ice);
}

.page-home .chapter-link[aria-current="true"] .chapter-idx {
  color: var(--pulse);
}

/* ---------- 02 恢复三步 ---------- */
.page-home .restore {
  border-top: 1px solid var(--night-line);
}

.page-home .restore .lede {
  color: var(--night-muted);
}

.page-home .step-track {
  list-style: none;
  margin: 38px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

@media (min-width: 880px) {
  .page-home .step-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-home .step {
  position: relative;
  padding: 22px 20px 20px;
  border: 1px solid var(--night-line);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(4, 7, 15, 0.72), rgba(11, 16, 36, 0.42));
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}

.page-home .step.is-active {
  border-color: rgba(53, 214, 164, 0.5);
}

.page-home .step-num {
  display: inline-block;
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--ice);
}

.page-home .step.is-active .step-num {
  color: var(--pulse);
}

.page-home .step-body {
  margin-top: 14px;
}

.page-home .step-body .h-sub {
  margin: 0 0 8px;
  color: #ffffff;
}

.page-home .step-body > p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--night-muted);
}

.page-home .restore-media {
  margin: 34px 0 0;
}

/* ---------- 折叠组件（深色区） ---------- */
.page-home .collapse {
  margin-top: 14px;
}

.page-home .collapse summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ice);
  border-bottom: 1px dashed rgba(127, 211, 247, 0.4);
  padding-bottom: 2px;
}

.page-home .collapse summary::-webkit-details-marker {
  display: none;
}

.page-home .collapse summary::after {
  content: "＋";
  font-size: 11px;
}

.page-home .collapse[open] summary::after {
  content: "－";
}

.page-home .collapse-body {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--night-line);
  background: rgba(4, 7, 15, 0.6);
}

.page-home .collapse-body p {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--night-muted);
  word-break: break-word;
}

.page-home .collapse-body p + p {
  margin-top: 6px;
}

/* ---------- 折叠组件（暖纸区） ---------- */
.page-home .section--paper .collapse summary,
.page-home .section--paper-2 .collapse summary {
  color: var(--ice-ink);
  border-bottom-color: rgba(14, 110, 140, 0.4);
}

.page-home .section--paper .collapse-body,
.page-home .section--paper-2 .collapse-body {
  background: rgba(255, 255, 255, 0.62);
  border-color: var(--hair);
}

.page-home .section--paper .collapse-body p,
.page-home .section--paper-2 .collapse-body p {
  color: var(--ink-muted);
}

/* ---------- 03 版本时间线 ---------- */
.page-home .timeline {
  list-style: none;
  position: relative;
  margin: 36px 0 0;
  padding: 0;
}

.page-home .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 10px;
  width: 1px;
  background: var(--hair);
}

.page-home .timeline-item {
  position: relative;
  padding: 0 0 26px 34px;
}

.page-home .timeline-item:last-child {
  padding-bottom: 0;
}

.page-home .timeline-mark {
  position: absolute;
  left: 0;
  top: 6px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--hair);
}

.page-home .timeline-mark--gold {
  border-color: var(--gold);
  background: var(--gold);
}

.page-home .timeline-mark--pulse {
  border-color: var(--pulse);
  background: var(--pulse);
  box-shadow: 0 0 0 4px rgba(53, 214, 164, 0.18);
}

.page-home .timeline-body .version {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold-ink);
}

.page-home .timeline-body .h-sub {
  margin: 0 0 8px;
}

.page-home .timeline-body > p {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink-muted);
}

.page-home .changelog-more {
  margin: 34px 0 0;
}

/* ---------- 过渡纹理带 ---------- */
.page-home .ridge-band {
  margin: 0;
  height: clamp(150px, 22vw, 260px);
  overflow: hidden;
  background: var(--black);
}

.page-home .ridge-band img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

/* ---------- 04 加密路径 ---------- */
.page-home .crypto .lede {
  color: var(--night-muted);
}

.page-home .crypto-grid {
  display: grid;
  gap: 34px;
}

@media (min-width: 940px) {
  .page-home .crypto-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }
}

.page-home .flow-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-home .flow-list li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--night-line);
}

.page-home .flow-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-home .flow-num {
  font-size: 22px;
  line-height: 1.2;
  color: var(--gold);
}

.page-home .flow-list .h-sub {
  margin: 0 0 6px;
  color: #ffffff;
}

.page-home .flow-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--night-muted);
}

.page-home .crypto .note--alert {
  margin: 26px 0 0;
}

.page-home .crypto-media {
  margin: 0;
}

.page-home .crypto-media .media-frame-caption {
  color: var(--night-muted);
}

/* ---------- 05 开源核对 ---------- */
.page-home .repo-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .repo-list li {
  padding: 20px 0;
  border-bottom: 1px solid var(--hair);
}

.page-home .repo-list li:first-child {
  padding-top: 4px;
}

.page-home .repo-list li:last-child {
  border-bottom: none;
}

.page-home .repo-tag {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-ink);
}

.page-home .repo-list .h-sub {
  margin: 0 0 8px;
}

.page-home .repo-list li > p:last-child {
  margin: 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink-muted);
}

.page-home .open-source .aside-note {
  padding: 22px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--hair);
  background: rgba(255, 255, 255, 0.6);
}

.page-home .open-source .aside-note > .mono {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-ink);
}

.page-home .open-source .aside-note ul {
  list-style: none;
  margin: 14px 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .open-source .aside-note li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-muted);
}

.page-home .open-source .aside-note li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pulse);
}

/* ---------- 06 站点索引 ---------- */
.page-home .index-list {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-home .index-row {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--hair);
}

@media (min-width: 760px) {
  .page-home .index-row {
    grid-template-columns: 48px minmax(0, 1fr) 190px;
    align-items: center;
    gap: 22px;
  }
}

.page-home .index-no {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ice-ink);
}

.page-home .index-text .h-sub {
  margin: 0 0 6px;
}

.page-home .index-text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-muted);
}

.page-home .index-link {
  justify-self: start;
  font-size: 14px;
  color: var(--ice-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 110, 140, 0.35);
  padding-bottom: 2px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

@media (min-width: 760px) {
  .page-home .index-link {
    justify-self: end;
  }
}

.page-home .index-link:hover {
  color: var(--pulse-ink);
  border-color: var(--pulse-ink);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .status-dot {
    animation: none;
    box-shadow: 0 0 0 3px rgba(53, 214, 164, 0.3);
  }

  .page-home .step,
  .page-home .chapter-link,
  .page-home .index-link {
    transition: none;
  }
}