.page-home {
  --hm-rail-w: 230px;
  --hm-soft: rgba(217, 226, 236, .82);
}

.page-home .hm-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  max-width: var(--by-shell);
  margin: 0 auto;
  padding: clamp(20px, 4vw, 34px) var(--by-gutter) clamp(56px, 8vw, 96px);
}

.page-home .hm-flow {
  min-width: 0;
}

/* ---------- 左侧索引栏 ---------- */
.page-home .hm-rail {
  min-width: 0;
}

.page-home .hm-rail__label {
  margin: 0 0 10px;
  font-family: var(--by-font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--by-electric-soft);
}

.page-home .hm-rail__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-home .hm-rail__link {
  flex: 0 0 auto;
  padding: 9px 15px;
  border: 1px solid var(--by-line);
  border-radius: 999px;
  background: rgba(14, 58, 92, .5);
  color: var(--by-pearl);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.page-home .hm-rail__link:hover,
.page-home .hm-rail__link:focus-visible {
  color: var(--by-electric);
  border-color: var(--by-line-strong);
  background: rgba(0, 212, 255, .12);
}

/* ---------- 面包屑 ---------- */
.page-home .hm-crumb {
  margin: 0 0 16px;
}

/* ---------- 专题封面首屏 ---------- */
.page-home .hm-cover {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 26px;
  padding: clamp(24px, 5vw, 46px);
  border: 2px solid var(--by-line);
  border-radius: var(--by-radius-l);
  background: var(--by-grad-panel);
  box-shadow: var(--by-shadow-card);
}

.page-home .hm-cover__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .hm-cover__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .4;
}

.page-home .hm-cover__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(158deg, rgba(10, 37, 64, .55) 0%, rgba(7, 19, 31, .94) 80%);
}

.page-home .hm-cover__body {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
}

.page-home .hm-cover h1 {
  margin: 0;
  max-width: 20ch;
  font-family: var(--by-font-head);
  font-size: clamp(32px, 6.2vw, 62px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: .02em;
  color: var(--by-sand);
}

.page-home .hm-cover__lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--hm-soft);
}

.page-home .hm-cover__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 34px;
  margin-top: 4px;
  padding-top: 22px;
  border-top: 1px solid var(--by-line);
}

.page-home .hm-cover__stats .by-num__value {
  display: block;
  font-family: var(--by-font-mono);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--by-electric);
}

.page-home .hm-cover__stats .by-num__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--by-pearl);
}

.page-home .hm-cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-home .hm-entrycard {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 18px;
  border: 2px solid var(--by-line-strong);
  border-radius: var(--by-radius-m);
  background: rgba(10, 37, 64, .84);
  box-shadow: var(--by-shadow-card);
}

.page-home .hm-entrycard img {
  width: 100%;
  max-width: 260px;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--by-line);
  border-radius: var(--by-radius-s);
}

.page-home .hm-entrycard__tagline {
  margin: 0;
  font-family: var(--by-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--by-electric-soft);
}

.page-home .hm-entrycard__title {
  margin: 0;
  font-family: var(--by-font-head);
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.35;
  color: var(--by-sand);
}

.page-home .hm-entrycard__link {
  justify-self: start;
  padding-bottom: 3px;
  border-bottom: 2px solid var(--by-coral);
  color: var(--by-coral);
  font-weight: 700;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease;
}

.page-home .hm-entrycard__link:hover,
.page-home .hm-entrycard__link:focus-visible {
  color: var(--by-electric);
  border-color: var(--by-electric);
}

/* ---------- 通用区块 ---------- */
.page-home .hm-block {
  margin-top: clamp(52px, 9vw, 92px);
}

.page-home .hm-block > .by-section__head {
  max-width: 64ch;
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-home .by-section__title {
  font-family: var(--by-font-head);
  letter-spacing: .015em;
  color: var(--by-sand);
}

.page-home .by-section__lede {
  color: var(--hm-soft);
}

/* ---------- 入口与版本 ---------- */
.page-home .hm-entry-grid {
  display: grid;
  gap: 22px;
}

.page-home .hm-entry-copy p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--hm-soft);
}

.page-home .hm-entry-copy p:last-child {
  margin-bottom: 0;
}

.page-home .hm-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .hm-point {
  padding: 18px 20px;
  border: 1px solid var(--by-line);
  border-left: 3px solid var(--by-electric);
  border-radius: var(--by-radius-m);
  background: var(--by-tide);
  box-shadow: 6px 6px 0 rgba(7, 19, 31, .45);
}

.page-home .hm-point h3 {
  margin: 0 0 6px;
  font-family: var(--by-font-head);
  font-size: 17px;
  color: var(--by-sand);
}

.page-home .hm-point p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--hm-soft);
}

/* ---------- 每周索引 ---------- */
.page-home .hm-index-layout {
  display: grid;
  gap: 22px;
}

.page-home .hm-index-figure {
  margin: 0;
  overflow: hidden;
  border: 2px solid var(--by-line);
  border-radius: var(--by-radius-m);
  background: var(--by-tide);
}

.page-home .hm-index-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .hm-index-grid {
  display: grid;
  gap: 14px;
}

.page-home .hm-idx {
  border: 2px solid var(--by-line);
  border-radius: var(--by-radius-m);
  background: var(--by-tide);
  box-shadow: 6px 6px 0 rgba(7, 19, 31, .45);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.page-home .hm-idx:hover {
  transform: translateY(-4px);
  box-shadow: 10px 12px 0 rgba(7, 19, 31, .55);
}

.page-home .hm-idx[open] {
  border-color: var(--by-line-strong);
}

.page-home .hm-idx summary {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 16px 48px 16px 18px;
  list-style: none;
  cursor: pointer;
}

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

.page-home .hm-idx summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--by-font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--by-electric);
}

.page-home .hm-idx[open] summary::after {
  content: "–";
}

.page-home .hm-idx__no {
  font-family: var(--by-font-mono);
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--by-electric-soft);
}

.page-home .hm-idx__name {
  font-family: var(--by-font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--by-sand);
}

.page-home .hm-idx__body {
  margin: 0;
  padding: 14px 18px 18px;
  border-top: 1px dashed var(--by-line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--hm-soft);
}

/* ---------- 组合检索 ---------- */
.page-home .hm-demo {
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3.4vw, 34px);
  border: 2px solid var(--by-line-strong);
  border-radius: var(--by-radius-l);
  background: var(--by-grad-panel);
  box-shadow: var(--by-shadow-card);
}

.page-home .hm-demo__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-home .hm-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 14px;
  border: 1px dashed var(--by-line-strong);
  border-radius: 999px;
  background: rgba(0, 212, 255, .08);
  color: var(--by-pearl);
  font-size: 14px;
}

.page-home .hm-chip b {
  color: var(--by-electric);
}

.page-home .hm-demo__hint {
  margin-left: auto;
  font-family: var(--by-font-mono);
  font-size: 12.5px;
  color: var(--by-electric-soft);
}

.page-home .hm-hits {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .hm-hit {
  display: grid;
  justify-items: start;
  gap: 8px;
  padding: 15px 18px;
  border: 1px solid var(--by-line);
  border-left: 4px solid var(--by-electric);
  border-radius: var(--by-radius-m);
  background: rgba(7, 19, 31, .52);
}

.page-home .hm-hit--exact {
  border-left-color: var(--by-coral);
}

.page-home .hm-hit__title {
  font-family: var(--by-font-head);
  font-size: 16.5px;
  font-weight: 700;
  color: var(--by-sand);
  text-decoration: none;
  transition: color .2s ease;
}

.page-home .hm-hit__title:hover,
.page-home .hm-hit__title:focus-visible {
  color: var(--by-electric);
}

.page-home .hm-hit__meta {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--by-pearl);
}

.page-home .hm-demo__note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--by-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--hm-soft);
}

/* ---------- 换机迁移 ---------- */
.page-home .hm-migrate {
  display: grid;
  gap: 24px;
}

.page-home .hm-migrate figure {
  margin: 0;
  overflow: hidden;
  border: 2px solid var(--by-line);
  border-radius: var(--by-radius-m);
  background: var(--by-tide);
}

.page-home .hm-migrate figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .hm-migrate-body {
  display: grid;
  gap: 18px;
}

.page-home .hm-migrate-body .by-num__value {
  display: block;
  font-family: var(--by-font-mono);
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 700;
  line-height: 1;
  color: var(--by-coral);
}

.page-home .hm-migrate-body .by-num__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--by-pearl);
}

.page-home .hm-migrate-body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--hm-soft);
}

.page-home .hm-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .hm-timeline li {
  position: relative;
  padding: 14px 16px 14px 36px;
  border: 1px solid var(--by-line);
  border-radius: var(--by-radius-s);
  background: rgba(14, 58, 92, .45);
  font-size: 15px;
  line-height: 1.7;
  color: var(--hm-soft);
}

.page-home .hm-timeline li::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 21px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--by-electric);
  box-shadow: 0 0 0 4px rgba(0, 212, 255, .18);
}

.page-home .hm-timeline li strong {
  display: block;
  margin-bottom: 2px;
  font-family: var(--by-font-head);
  color: var(--by-sand);
}

/* ---------- 问题反馈 ---------- */
.page-home .hm-support {
  display: grid;
  gap: 18px;
}

.page-home .hm-support__card {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: clamp(20px, 3vw, 28px);
  border: 2px solid var(--by-line);
  border-radius: var(--by-radius-m);
  background: var(--by-tide);
  box-shadow: 8px 8px 0 rgba(7, 19, 31, .5);
}

.page-home .hm-support__card h3 {
  margin: 0;
  font-family: var(--by-font-head);
  font-size: 19px;
  color: var(--by-sand);
}

.page-home .hm-support__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--hm-soft);
}

.page-home .hm-support__card .hm-mono {
  font-family: var(--by-font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--by-electric);
  overflow-wrap: anywhere;
}

.page-home .hm-support__link {
  justify-self: start;
  padding-bottom: 3px;
  border-bottom: 2px solid var(--by-line-strong);
  color: var(--by-electric-soft);
  font-weight: 700;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease;
}

.page-home .hm-support__link:hover,
.page-home .hm-support__link:focus-visible {
  color: var(--by-coral);
  border-color: var(--by-coral);
}

.page-home .hm-more {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-home .hm-support {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .hm-cover {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, .72fr);
    align-items: center;
    gap: 40px;
    padding: clamp(32px, 4vw, 50px);
  }

  .page-home .hm-entry-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 36px;
  }

  .page-home .hm-index-layout {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: 34px;
    align-items: start;
  }

  .page-home .hm-migrate {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    gap: 36px;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-home .hm-shell {
    grid-template-columns: var(--hm-rail-w) minmax(0, 1fr);
    gap: 54px;
  }

  .page-home .hm-rail__nav {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-home .hm-rail__link {
    padding: 11px 12px 11px 16px;
    border: none;
    border-left: 2px solid var(--by-line);
    border-radius: 0;
    background: transparent;
    font-size: 15px;
    white-space: normal;
  }

  .page-home .hm-rail__link:hover,
  .page-home .hm-rail__link:focus-visible {
    border-left-color: var(--by-electric);
    background: rgba(0, 212, 255, .08);
    color: var(--by-electric);
  }

  .page-home .hm-rail__inner {
    position: sticky;
    top: calc(var(--by-header-h) + 26px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hm-idx,
  .page-home .hm-rail__link,
  .page-home .hm-hit__title,
  .page-home .hm-support__link,
  .page-home .hm-entrycard__link {
    transition: none;
  }

  .page-home .hm-idx:hover {
    transform: none;
  }
}
<<<END>>>