.page-home {
  --home-tile-hover: #0F2C43;
  --home-cyan-tint: rgba(53, 230, 255, 0.07);
  --home-amber-tint: rgba(242, 184, 75, 0.16);
  background: var(--ink);
  color: var(--white);
  overflow-x: hidden;
}

/* 页面上下文 */
.page-home .home-context {
  margin: 0;
  padding: var(--s4) 0 var(--s1);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s2);
}

.page-home .home-context a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-home .home-context a:hover,
.page-home .home-context a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-home .home-context__sep {
  color: var(--line-strong);
}

/* ============ 海报式首屏 ============ */
.page-home .home-hero {
  position: relative;
  padding: clamp(24px, 4vw, 48px) 0 clamp(48px, 7vw, 96px);
  overflow: hidden;
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: -30% 42% auto -14%;
  height: 78%;
  background: radial-gradient(closest-side, rgba(53, 230, 255, 0.16), transparent 72%);
  pointer-events: none;
}

.page-home .home-hero::after {
  content: "";
  position: absolute;
  right: -6%;
  bottom: -18%;
  width: 46%;
  height: 60%;
  background: radial-gradient(closest-side, rgba(58, 31, 61, 0.75), transparent 70%);
  pointer-events: none;
}

.page-home .home-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-home .home-hero__kicker {
  margin: 0 0 var(--s3);
  padding-bottom: var(--s2);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-home .home-hero__title {
  margin: 0 0 var(--s3);
  font-family: var(--font-condensed);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-home .home-hero__version {
  display: block;
  margin-top: var(--s2);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(54px, 15vw, 124px);
  line-height: 0.88;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  text-shadow: 0 0 52px rgba(53, 230, 255, 0.32);
}

.page-home .home-hero__lede {
  margin: 0 0 var(--s5);
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s3);
}

.page-home .home-hero__copy {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
}

/* 拼贴块 */
.page-home .home-hero__collage {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s2);
}

.page-home .tile {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 6px;
  padding: var(--s3);
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--white);
  text-decoration: none;
  overflow: hidden;
  transition: border-color 200ms var(--ease), transform 200ms var(--ease),
    background-color 200ms var(--ease);
}

.page-home .tile:hover,
.page-home .tile:focus-visible {
  border-color: var(--cyan);
  background: var(--home-tile-hover);
  transform: translateY(-4px);
  outline: none;
}

.page-home .tile--figure {
  grid-column: 1 / -1;
  padding: 0;
  justify-content: flex-start;
  background: var(--teal);
}

.page-home .tile--date {
  background: var(--teal);
}

.page-home .tile--rail {
  background: var(--indigo);
  padding-left: calc(var(--s3) + 12px);
}

.page-home .tile--rail::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--s3);
  bottom: var(--s3);
  width: 2px;
  background: var(--amber);
}

.page-home .tile--step {
  grid-column: 1 / -1;
  background: var(--wine);
}

.page-home .tile__frame {
  display: block;
  width: 100%;
  aspect-ratio: 5 / 3;
  overflow: hidden;
  background: var(--ink);
}

.page-home .tile__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
  transition: transform 420ms var(--ease);
}

.page-home .tile--figure:hover .tile__frame img,
.page-home .tile--figure:focus-visible .tile__frame img {
  transform: scale(1.03);
}

.page-home .tile__caption {
  display: block;
  padding: var(--s3);
}

.page-home .tile__kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-home .tile__big {
  display: block;
  font-family: var(--font-condensed);
  font-weight: 700;
  font-size: clamp(19px, 2.3vw, 26px);
  line-height: 1.15;
  color: var(--white);
}

.page-home .tile__text {
  display: block;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ============ 通用章节 ============ */
.page-home .home-sec {
  padding: clamp(44px, 6vw, 84px) 0;
  border-top: 1px solid var(--line);
}

.page-home .home-sec__head {
  display: grid;
  gap: var(--s2);
  margin-bottom: clamp(24px, 4vw, 44px);
  max-width: 62ch;
}

.page-home .home-sec__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-home .home-sec__title {
  margin: 0;
  font-family: var(--font-condensed);
  font-weight: 700;
  font-size: clamp(23px, 3.3vw, 36px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-home .home-sec__lede {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

/* ============ 三步路径 ============ */
.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s3);
}

.page-home .step {
  position: relative;
  padding: var(--s4) var(--s3) var(--s3);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--home-cyan-tint), transparent 58%);
}

.page-home .step__num {
  display: block;
  margin-bottom: var(--s2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--amber);
}

.page-home .step__title {
  margin: 0 0 var(--s2);
  font-family: var(--font-condensed);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.25;
  color: var(--white);
}

.page-home .step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* ============ 版本记录时间轴 ============ */
.page-home .home-log__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-home .log {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--s3);
  border-left: 1px solid var(--line-strong);
}

.page-home .log__item {
  position: relative;
  padding: 0 0 var(--s5);
}

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

.page-home .log__item::before {
  content: "";
  position: absolute;
  left: calc(var(--s3) * -1 - 4px);
  top: 5px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 3px var(--home-amber-tint);
}

.page-home .log__item:first-child::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 230, 255, 0.2);
}

.page-home .log__date {
  display: block;
  margin-bottom: var(--s1);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-home .log__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 var(--s1);
}

.page-home .log__title {
  margin: 0 0 6px;
  font-family: var(--font-condensed);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.3;
  color: var(--white);
  transition: color 180ms var(--ease);
}

.page-home .log__item:hover .log__title {
  color: var(--cyan);
}

.page-home .log__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 56ch;
}

.page-home .home-log__aside {
  display: grid;
  gap: var(--s3);
}

.page-home .home-log__note {
  margin: 0;
  padding-left: var(--s3);
  border-left: 2px solid var(--amber);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* 图片通用 */
.page-home .home-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-home .home-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  background: var(--teal);
  filter: saturate(0.9) contrast(1.04);
}

.page-home .home-figure--tall img {
  aspect-ratio: 4 / 5;
}

.page-home .home-figure--wide img {
  aspect-ratio: 3 / 2;
}

.page-home .home-figure figcaption {
  padding: var(--s2) var(--s3);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ============ 第二栏 ============ */
.page-home .home-rail {
  padding: clamp(44px, 6vw, 84px) 0;
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home .home-rail__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-home .rail-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--line-strong);
  background: var(--ink);
}

.page-home .rail-compare__pane {
  padding: var(--s4) var(--s3);
}

.page-home .rail-compare__pane--query {
  background: var(--home-cyan-tint);
  border-top: 1px solid var(--line-strong);
}

.page-home .rail-compare__label {
  margin: 0 0 var(--s3);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

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

.page-home .rail-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s2);
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  color: var(--white);
}

.page-home .rail-list li:last-child {
  border-bottom: 0;
}

.page-home .rail-list .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-home .rail-ways {
  list-style: none;
  margin: 0 0 var(--s3);
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--white);
}

.page-home .rail-ways li {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.page-home .rail-ways__dot {
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-home .rail-compare__foot {
  margin: 0;
  padding-top: var(--s2);
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ============ 同源分类 ============ */
.page-home .sync {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s3);
  align-items: stretch;
}

.page-home .sync__card {
  padding: var(--s4) var(--s3);
  border: 1px solid var(--line);
  background: var(--teal);
}

.page-home .sync__card--alt {
  background: var(--indigo);
}

.page-home .sync__label {
  margin: 0 0 var(--s2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-home .sync__title {
  margin: 0 0 var(--s2);
  font-family: var(--font-condensed);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.25;
  color: var(--white);
}

.page-home .sync__text {
  margin: 0 0 var(--s3);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .sync__code {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  background: rgba(6, 24, 38, 0.55);
}

.page-home .sync__bridge {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: var(--s2);
  color: var(--mist);
}

.page-home .sync__bridge svg {
  display: block;
  width: 90px;
  height: 30px;
}

.page-home .sync__bridge-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-home .sync-path-wrap {
  margin-top: clamp(24px, 3vw, 36px);
  padding-top: var(--s4);
  border-top: 1px solid var(--line);
}

.page-home .sync-path__label {
  margin: 0 0 var(--s3);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-home .sync-path {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s2);
}

.page-home .sync-path__step {
  display: flex;
  align-items: center;
  gap: var(--s2);
  padding: 12px var(--s3);
  border: 1px solid var(--line);
  background: rgba(6, 24, 38, 0.5);
  font-size: 14px;
  color: var(--white);
}

.page-home .sync-path__step .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

/* ============ 服务与联络 ============ */
.page-home .help-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s3);
}

.page-home .help-card {
  display: grid;
  gap: 8px;
  padding: var(--s4) var(--s3);
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--white);
  text-decoration: none;
  transition: border-color 200ms var(--ease), transform 200ms var(--ease),
    background-color 200ms var(--ease);
}

.page-home .help-card:hover,
.page-home .help-card:focus-visible {
  border-color: var(--cyan);
  background: var(--home-tile-hover);
  transform: translateY(-3px);
  outline: none;
}

.page-home .help-card__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-home .help-card__t {
  font-family: var(--font-condensed);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.3;
}

.page-home .help-card__d {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .help-card__a {
  margin-top: var(--s1);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-home .help-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s4);
  margin-top: clamp(24px, 3vw, 36px);
  padding-top: var(--s5);
  border-top: 1px solid var(--line);
}

.page-home .help-contact__lead {
  margin: 0 0 var(--s2);
  font-size: 15px;
  line-height: 1.75;
  color: var(--white);
}

.page-home .help-contact__lead .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--cyan);
  word-break: break-word;
}

.page-home .help-contact__text {
  margin: 0 0 var(--s2);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .help-contact__addr {
  margin: 0;
  padding-top: var(--s2);
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .home-tail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s2);
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding-top: var(--s3);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--line-strong);
}

.page-home .home-tail a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-home .home-tail a:hover,
.page-home .home-tail a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ============ 响应式 ============ */
@media (min-width: 700px) {
  .page-home .home-hero__collage {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: var(--s3);
  }

  .page-home .tile--figure {
    grid-column: 1 / span 4;
    grid-row: 1 / span 2;
  }

  .page-home .tile--date {
    grid-column: 5 / span 2;
    grid-row: 1;
  }

  .page-home .tile--rail {
    grid-column: 5 / span 2;
    grid-row: 2;
  }

  .page-home .tile--step {
    grid-column: 1 / span 6;
    grid-row: 3;
  }

  .page-home .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--s4);
  }

  .page-home .step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: calc(var(--s4) / -2 - 1px);
    width: calc(var(--s4) / 2);
    height: 1px;
    background: var(--line-strong);
  }

  .page-home .rail-compare {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }

  .page-home .rail-compare__pane--query {
    border-top: 0;
    border-left: 2px solid var(--amber);
  }

  .page-home .sync {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
  }

  .page-home .sync__bridge {
    flex-direction: column;
    padding: 0 var(--s2);
  }

  .page-home .sync__bridge svg {
    width: 60px;
    height: 60px;
    transform: rotate(90deg);
  }

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

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

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: clamp(32px, 4vw, 56px);
  }

  .page-home .home-hero__lead {
    grid-column: 1 / span 5;
    position: sticky;
    top: clamp(24px, 5vh, 56px);
  }

  .page-home .home-hero__collage {
    grid-column: 6 / span 7;
  }

  .page-home .home-log__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-home .home-log__aside {
    position: sticky;
    top: clamp(24px, 5vh, 56px);
  }

  .page-home .home-rail__body {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(28px, 4vw, 48px);
  }

  .page-home .help-contact {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(28px, 4vw, 48px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .tile,
  .page-home .tile__frame img,
  .page-home .help-card,
  .page-home .log__title,
  .page-home .home-context a,
  .page-home .home-tail a {
    transition: none;
  }

  .page-home .tile:hover,
  .page-home .help-card:hover {
    transform: none;
  }

  .page-home .tile--figure:hover .tile__frame img {
    transform: none;
  }
}
<<<END>>>