.page-home {
  --home-line: rgba(27, 46, 77, 0.75);
  --home-soft: rgba(27, 46, 77, 0.4);
  --home-card-shadow: 0 28px 70px -34px rgba(0, 0, 0, 0.92);
  background: var(--pb-ink-950);
  color: var(--pb-paper);
  font-family: var(--pb-font-body);
  overflow-x: hidden;
}

.page-home * {
  box-sizing: border-box;
}

.page-home img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-home figure {
  margin: 0;
}

.page-home figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--pb-ash);
}

.page-home .home-section__title {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--pb-paper);
}

.page-home .home-section__head {
  max-width: 44em;
  margin-bottom: clamp(24px, 3.6vw, 48px);
}

.page-home .home-section__lead {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--pb-ash);
  max-width: 36em;
}

.page-home .home-section__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pb-ash);
  max-width: 34em;
}

/* ---------- 首屏 ---------- */

.page-home .home-hero {
  position: relative;
  padding: calc(var(--pb-header-h) + 44px) 0 26px;
  background:
    radial-gradient(circle at 78% 8%, rgba(55, 230, 206, 0.12), transparent 58%),
    radial-gradient(circle at 12% 92%, rgba(138, 123, 255, 0.12), transparent 60%);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, var(--home-soft) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, var(--home-soft) 0 1px, transparent 1px 96px);
  opacity: 0.6;
}

.page-home .home-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-home .home-hero__eyebrow {
  margin: 0 0 18px;
}

.page-home .home-hero__title {
  margin: 0;
  font-size: clamp(32px, 5.4vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--pb-paper);
}

.page-home .home-hero__desc {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--pb-ash);
}

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

.page-home .home-hero__facts {
  display: grid;
  gap: 14px;
  margin: 32px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--home-line);
}

.page-home .home-fact dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--pb-ash);
}

.page-home .home-fact dd {
  margin: 6px 0 0;
  font-family: var(--pb-font-mono);
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--pb-paper);
}

.page-home .home-hero__figure {
  border: 1px solid var(--home-line);
  background: var(--pb-ink-900);
  padding: 8px;
}

.page-home .home-hero__figure figcaption {
  padding: 0 4px 4px;
}

.page-home .home-index {
  margin-top: 20px;
  border-top: 1px solid var(--home-line);
}

.page-home .home-index__list {
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-home .home-index__item {
  flex: 0 0 auto;
  min-width: 150px;
  border-bottom: 1px solid var(--home-line);
}

.page-home .home-index__link {
  display: block;
  padding: 14px 16px 14px 0;
  text-decoration: none;
  color: var(--pb-paper);
  transition: color 0.2s var(--pb-ease);
}

.page-home .home-index__num {
  display: block;
  font-family: var(--pb-font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--pb-index);
}

.page-home .home-index__label {
  display: block;
  margin-top: 6px;
  font-size: 15px;
  font-weight: 600;
}

.page-home .home-index__meta {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--pb-ash);
}

.page-home .home-index__link:hover .home-index__label,
.page-home .home-index__link:focus-visible .home-index__label {
  color: var(--pb-pulse);
}

.page-home .home-index__link:focus-visible {
  outline: 2px solid var(--pb-pulse);
  outline-offset: 2px;
}

.page-home .home-hero__pulse {
  position: relative;
  height: 1px;
  margin-top: 34px;
  background: linear-gradient(90deg, transparent, var(--pb-pulse) 22%, var(--pb-pulse) 78%, transparent);
}

.page-home .home-hero__pulse::before,
.page-home .home-hero__pulse::after {
  content: "";
  position: absolute;
  top: -3px;
  width: 7px;
  height: 7px;
  background: var(--pb-pulse);
  transform: rotate(45deg);
}

.page-home .home-hero__pulse::before {
  left: 12%;
}

.page-home .home-hero__pulse::after {
  right: 12%;
}

/* ---------- 订阅三步 ---------- */

.page-home .home-steps {
  padding: clamp(52px, 7vw, 96px) 0 clamp(48px, 6vw, 88px);
  border-top: 1px solid var(--home-line);
}

.page-home .home-steps__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-home .home-steps__figure {
  border: 1px solid var(--home-line);
  background: var(--pb-ink-900);
  padding: 8px;
}

.page-home .home-steps__card {
  position: relative;
  padding: clamp(24px, 4vw, 44px);
  background: var(--pb-paper);
  color: #0C1526;
  border: 1px solid rgba(12, 21, 38, 0.14);
  box-shadow: var(--home-card-shadow);
}

.page-home .home-steps__card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 6px;
  background: var(--pb-ink-900);
  border: 1px solid var(--home-line);
  border-top: none;
}

.page-home .home-steps__eyebrow {
  margin: 0;
  font-family: var(--pb-font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: #3C4A63;
}

.page-home .home-steps__title {
  margin: 10px 0 0;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: #0C1526;
}

.page-home .home-steps__lead {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: #38455C;
}

.page-home .home-steps__list {
  margin: 26px 0 30px;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(12, 21, 38, 0.16);
}

.page-home .home-step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(12, 21, 38, 0.16);
}

.page-home .home-step__num {
  font-family: var(--pb-font-mono);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: #8A2F0C;
}

.page-home .home-step__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: #0C1526;
}

.page-home .home-step__text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: #38455C;
}

/* ---------- 版本对照 ---------- */

.page-home .home-versions {
  padding: clamp(52px, 7vw, 96px) 0;
  border-top: 1px solid var(--home-line);
  background: var(--pb-ink-900);
}

.page-home .home-versions__grid {
  display: grid;
  gap: 18px;
}

.page-home .home-version {
  padding: 22px clamp(18px, 3vw, 30px) 26px;
  border: 1px solid var(--home-line);
  background: var(--pb-ink-950);
}

.page-home .home-version--now {
  border-color: rgba(55, 230, 206, 0.5);
  box-shadow: inset 3px 0 0 0 var(--pb-pulse);
}

.page-home .home-version--prev {
  box-shadow: inset 3px 0 0 0 rgba(168, 180, 196, 0.35);
}

.page-home .home-version__badge {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--pb-font-mono);
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: 0.02em;
  color: var(--pb-paper);
}

.page-home .home-version__badge span {
  font-family: var(--pb-font-body);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--pb-ash);
}

.page-home .home-version__list {
  margin: 0;
}

.page-home .home-version__row {
  padding: 12px 0;
  border-top: 1px solid var(--home-line);
}

.page-home .home-version__row dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--pb-index);
}

.page-home .home-version__row dd {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--pb-ash);
}

.page-home .home-version--now .home-version__row dd {
  color: var(--pb-paper);
}

.page-home .home-versions__figure {
  margin-top: 26px;
  border: 1px solid var(--home-line);
  background: var(--pb-ink-950);
  padding: 8px;
}

.page-home .home-versions__more {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--pb-ash);
}

.page-home .home-versions__more a {
  color: var(--pb-pulse);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 230, 206, 0.35);
  padding-bottom: 2px;
}

.page-home .home-versions__more a:hover,
.page-home .home-versions__more a:focus-visible {
  border-bottom-color: var(--pb-pulse);
}

/* ---------- 分类标签 ---------- */

.page-home .home-tags {
  padding: clamp(52px, 7vw, 96px) 0;
  border-top: 1px solid var(--home-line);
}

.page-home .home-section__head--split {
  display: grid;
  gap: 16px;
  max-width: none;
}

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

.page-home .home-tagcard {
  padding: 20px;
  border: 1px solid rgba(247, 243, 234, 0.18);
  color: var(--pb-paper);
}

.page-home .home-tagcard--a {
  background: var(--pb-tag-a);
}

.page-home .home-tagcard--b {
  background: var(--pb-tag-b);
}

.page-home .home-tagcard--c {
  background: var(--pb-tag-c);
}

.page-home .home-tagcard__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(247, 243, 234, 0.82);
}

.page-home .home-tagcard__desc {
  margin: 10px 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pb-paper);
}

.page-home .home-tagcard__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-chip {
  padding: 5px 10px;
  border: 1px solid rgba(247, 243, 234, 0.45);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--pb-paper);
  transition: border-color 0.2s var(--pb-ease);
}

.page-home .home-chip:hover {
  border-color: var(--pb-paper);
}

.page-home .home-tags__link {
  display: inline-block;
  margin-top: 22px;
  font-size: 14px;
  color: var(--pb-pulse);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 230, 206, 0.4);
  padding-bottom: 3px;
}

.page-home .home-tags__link:hover,
.page-home .home-tags__link:focus-visible {
  border-bottom-color: var(--pb-pulse);
}

/* ---------- 五轮时间轴 ---------- */

.page-home .home-rounds {
  padding: clamp(52px, 7vw, 96px) 0;
  border-top: 1px solid var(--home-line);
  background: var(--pb-ink-900);
}

.page-home .home-rounds__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-home .home-rounds__list {
  position: relative;
  margin: 30px 0 0;
  padding: 0 0 0 26px;
  list-style: none;
}

.page-home .home-rounds__list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--pb-pulse), rgba(55, 230, 206, 0.25) 70%, transparent);
}

.page-home .home-round {
  position: relative;
  padding: 14px 0 18px;
  border-bottom: 1px solid var(--home-line);
}

.page-home .home-round::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 22px;
  width: 9px;
  height: 9px;
  background: var(--pb-ink-900);
  border: 1px solid var(--pb-pulse);
  transform: rotate(45deg);
}

.page-home .home-round.is-current::before {
  background: var(--pb-signal);
  border-color: var(--pb-signal);
}

.page-home .home-round:focus-visible {
  outline: 2px solid var(--pb-pulse);
  outline-offset: 4px;
}

.page-home .home-round__no {
  margin: 0;
  font-family: var(--pb-font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--pb-index);
}

.page-home .home-round__title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 8px 0 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--pb-paper);
}

.page-home .home-round__state {
  padding: 2px 8px;
  border: 1px solid var(--home-line);
  font-family: var(--pb-font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--pb-pulse);
}

.page-home .home-round.is-current .home-round__state {
  border-color: rgba(255, 106, 43, 0.6);
  color: var(--pb-signal);
}

.page-home .home-round__meta {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pb-ash);
}

.page-home .home-round__note {
  margin: 8px 0 0;
  max-width: 34em;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(168, 180, 196, 0.9);
  border-left: 1px solid var(--home-line);
  padding-left: 10px;
  transition: border-color 0.2s var(--pb-ease), color 0.2s var(--pb-ease);
}

.page-home .home-round:hover .home-round__note,
.page-home .home-round:focus .home-round__note,
.page-home .home-round:focus-within .home-round__note {
  border-left-color: var(--pb-pulse);
  color: var(--pb-paper);
}

.page-home .home-rounds__figure {
  border: 1px solid var(--home-line);
  background: var(--pb-ink-950);
  padding: 8px;
}

/* ---------- 联络 ---------- */

.page-home .home-contact {
  padding: clamp(52px, 7vw, 96px) 0 clamp(48px, 6vw, 84px);
  border-top: 1px solid var(--home-line);
}

.page-home .home-contact__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-home .home-contact__body .home-section__lead {
  margin-bottom: 22px;
}

.page-home .home-contact__list {
  margin: 0;
  border-top: 1px solid var(--home-line);
}

.page-home .home-contact__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--home-line);
}

.page-home .home-contact__row dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--pb-index);
}

.page-home .home-contact__row dd {
  margin: 0;
  font-family: var(--pb-font-mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--pb-paper);
  word-break: break-word;
}

.page-home .home-contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid var(--home-line);
}

.page-home .home-contact__links a {
  font-size: 14px;
  color: var(--pb-pulse);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 230, 206, 0.35);
  padding-bottom: 2px;
}

.page-home .home-contact__links a:hover,
.page-home .home-contact__links a:focus-visible {
  border-bottom-color: var(--pb-pulse);
}

@media (min-width: 640px) {
  .page-home .home-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-home .home-contact__row {
    grid-template-columns: 120px 1fr;
    align-items: baseline;
    gap: 12px;
  }

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

@media (min-width: 960px) {
  .page-home .home-hero {
    padding-top: calc(var(--pb-header-h) + 64px);
  }

  .page-home .home-hero__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .home-hero__lead {
    grid-column: span 7;
  }

  .page-home .home-hero__side {
    grid-column: span 5;
  }

  .page-home .home-index__list {
    display: block;
    overflow: visible;
  }

  .page-home .home-index__item {
    min-width: 0;
  }

  .page-home .home-index__link {
    display: grid;
    grid-template-columns: 44px 1fr auto;
    align-items: baseline;
    gap: 10px;
    padding: 13px 0;
  }

  .page-home .home-index__num,
  .page-home .home-index__label,
  .page-home .home-index__meta {
    margin-top: 0;
  }

  .page-home .home-index__meta {
    text-align: right;
  }

  .page-home .home-steps__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .home-steps__figure {
    grid-column: span 5;
  }

  .page-home .home-steps__card {
    grid-column: span 7;
    margin-top: 40px;
  }

  .page-home .home-versions__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-home .home-section__head--split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 32px;
    align-items: end;
  }

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

  .page-home .home-rounds__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .home-rounds__body {
    grid-column: span 7;
  }

  .page-home .home-rounds__figure {
    grid-column: span 5;
  }

  .page-home .home-contact__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .home-contact__body {
    grid-column: span 7;
  }

  .page-home .home-contact__list {
    grid-column: span 5;
  }
}

@media (min-width: 1200px) {
  .page-home .home-hero__desc {
    font-size: 17px;
  }

  .page-home .home-round__title {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-index__link,
  .page-home .home-chip,
  .page-home .home-round__note {
    transition: none;
  }
}
<<<END>>>