.page-home {
  --home-card-line: rgba(244, 246, 248, 0.22);
  --home-ink-soft: rgba(14, 27, 44, 0.68);
  --home-fog-soft: rgba(244, 246, 248, 0.78);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--fog);
  padding-block: clamp(20px, 3.5vw, 36px) clamp(40px, 6vw, 80px);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(244, 246, 248, 0.055) 0 1px,
    transparent 1px 72px
  );
  pointer-events: none;
}

.page-home .home-hero::after {
  content: "";
  position: absolute;
  top: -28%;
  right: -12%;
  width: 62%;
  height: 130%;
  background: linear-gradient(135deg, rgba(245, 197, 24, 0.13), transparent 62%);
  transform: skewX(-12deg);
  pointer-events: none;
}

.page-home .home-hero > .yy-container {
  position: relative;
  z-index: 1;
}

.page-home .home-hero__coord {
  margin: 0 0 clamp(20px, 4vw, 40px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-home .home-hero__grid {
  display: grid;
  gap: clamp(28px, 4.5vw, 52px);
}

.page-home .home-hero__title {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(28px, 6.6vw, 54px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.012em;
}

.page-home .home-hero__lead {
  max-width: 34em;
  margin: 0;
  font-size: clamp(15px, 3.6vw, 17px);
  line-height: 1.8;
  color: var(--home-fog-soft);
}

.page-home .home-rail {
  display: grid;
  gap: 10px;
  margin-top: clamp(24px, 4vw, 36px);
}

.page-home .home-rail__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-left: 3px solid var(--yellow);
  border-radius: 2px;
  background: rgba(244, 246, 248, 0.06);
  color: var(--fog);
  text-decoration: none;
  transition: background 240ms var(--ease), transform 240ms var(--ease);
}

.page-home .home-rail__item:hover,
.page-home .home-rail__item:focus-visible {
  background: rgba(244, 246, 248, 0.13);
  transform: translateX(3px);
}

.page-home .home-rail__item--flag {
  background: var(--yellow);
  color: var(--ink);
  border-left-color: var(--ink);
}

.page-home .home-rail__item--flag:hover,
.page-home .home-rail__item--flag:focus-visible {
  background: #ffd53a;
}

.page-home .home-rail__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  opacity: 0.75;
}

.page-home .home-rail__body {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-home .home-rail__title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: clamp(15px, 3.8vw, 17px);
  font-weight: 800;
  line-height: 1.4;
}

.page-home .home-rail__desc {
  font-size: 13px;
  line-height: 1.6;
  opacity: 0.78;
}

.page-home .home-rail__tag {
  padding: 2px 7px;
  border-radius: 2px;
  background: var(--orange);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-home .home-rail__arrow {
  font-size: 16px;
  line-height: 1;
  transition: transform 240ms var(--ease);
}

.page-home .home-rail__item:hover .home-rail__arrow,
.page-home .home-rail__item:focus-visible .home-rail__arrow {
  transform: translateX(5px);
}

.page-home .home-hero__stage {
  position: relative;
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-home .home-stage {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: 3px;
  background: var(--ink-2);
}

.page-home .home-stage img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .home-stage .yy-media__cap {
  position: absolute;
  left: 14px;
  bottom: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: rgba(244, 246, 248, 0.7);
}

.page-home .home-hero__card {
  display: grid;
  justify-items: start;
  gap: 8px;
  padding: 16px 18px;
  border: 1px solid var(--home-card-line);
  border-radius: 3px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-home .home-hero__card-coord {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--yellow);
}

.page-home .home-hero__card-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 4vw, 19px);
  font-weight: 800;
  line-height: 1.4;
  color: #fff;
}

.page-home .home-hero__card-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--home-fog-soft);
}

.page-home .home-hero__meter {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border: 1px dashed var(--home-card-line);
  border-radius: 3px;
}

.page-home .home-hero__meter-num {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 6vw, 28px);
  font-weight: 900;
  color: var(--yellow);
  line-height: 1.1;
}

.page-home .home-hero__meter-num span {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--home-fog-soft);
}

/* ---------- 时间轴 ---------- */
.page-home .home-changes {
  background: var(--sand);
  color: var(--ink);
}

.page-home .home-changes__track {
  position: relative;
  margin-top: clamp(22px, 4vw, 36px);
  padding-top: 4px;
}

.page-home .home-changes__path {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  border-radius: 3px;
  pointer-events: none;
}

.page-home .home-changes__nodes {
  position: relative;
  display: flex;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-home .home-changes__node {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(14, 27, 44, 0.24);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
  background: rgba(244, 246, 248, 0.55);
  transition: background 220ms var(--ease), border-color 220ms var(--ease);
}

.page-home .home-changes__node:hover,
.page-home .home-changes__node:focus-visible {
  background: var(--yellow);
  border-color: var(--ink);
}

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

.page-home .home-change {
  padding: 18px 18px 20px;
  border-top: 3px solid var(--ink);
  border-radius: 2px;
  background: var(--fog);
  scroll-margin-top: calc(var(--header-h) + 24px);
  transition: transform 240ms var(--ease);
}

.page-home .home-change:hover {
  transform: translateY(-3px);
}

.page-home .home-change--new {
  border-top-color: var(--orange);
}

.page-home .home-change__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--graphite);
}

.page-home .home-change__badge {
  padding: 2px 7px;
  border-radius: 2px;
  background: var(--orange);
  color: var(--ink);
  font-weight: 700;
}

.page-home .home-change__title {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(17px, 4.2vw, 20px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink);
}

.page-home .home-change__row {
  display: grid;
  gap: 4px;
  margin-bottom: 10px;
}

.page-home .home-change__row:last-child {
  margin-bottom: 0;
}

.page-home .home-change__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--graphite);
}

.page-home .home-change__row p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 帮助中心 ---------- */
.page-home .home-help {
  background: var(--fog);
  color: var(--ink);
}

.page-home .home-help__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-home .home-help__intro .yy-text {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--home-ink-soft);
}

.page-home .home-help__figure {
  margin: clamp(18px, 3vw, 26px) 0 0;
  overflow: hidden;
  border-radius: 3px;
}

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

.page-home .home-help__tiles {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-home .home-help__tiles .home-tile {
  display: grid;
  align-content: start;
  gap: 8px;
  height: 100%;
  padding: 20px 18px;
  border-radius: 3px;
  text-decoration: none;
  color: var(--ink);
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(14, 27, 44, 0.1);
  transition: transform 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-home .home-help__tiles .home-tile--sand {
  background: var(--sand);
}

.page-home .home-help__tiles .home-tile--ink {
  background: var(--ink-2);
  color: var(--fog);
  box-shadow: inset 0 0 0 1px rgba(244, 246, 248, 0.16);
}

.page-home .home-help__tiles .home-tile--mint {
  background: var(--mint);
  color: var(--ink);
}

.page-home .home-help__tiles .home-tile:hover,
.page-home .home-help__tiles .home-tile:focus-visible {
  transform: translateY(-4px);
  box-shadow: inset 0 0 0 2px var(--yellow);
}

.page-home .home-tile .yy-tile__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  opacity: 0.7;
}

.page-home .home-tile .yy-tile__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
}

.page-home .home-tile .yy-tile__text {
  font-size: 13.5px;
  line-height: 1.7;
  opacity: 0.86;
}

.page-home .home-tile .yy-tile__foot {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-home .home-tile__arrow {
  transition: transform 240ms var(--ease);
}

.page-home .home-tile:hover .home-tile__arrow,
.page-home .home-tile:focus-visible .home-tile__arrow {
  transform: translateX(5px);
}

/* ---------- 测试区 ---------- */
.page-home .home-beta {
  background: var(--ink-2);
  color: var(--fog);
}

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

.page-home .home-beta__text .yy-text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--home-fog-soft);
}

.page-home .home-beta__list {
  display: grid;
  gap: 10px;
  margin: 20px 0 24px;
  padding: 0;
  list-style: none;
}

.page-home .home-beta__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 246, 248, 0.88);
}

.page-home .home-beta__list li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 8px;
  background: var(--yellow);
  border-radius: 1px;
}

.page-home .home-beta__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: 3px;
  border: 1px solid var(--home-card-line);
}

.page-home .home-beta__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-home .home-beta__status {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 5px 10px;
  background: var(--red);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  border-radius: 2px;
}

.page-home .home-beta__tip {
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 14px 16px;
  border: 1px dashed var(--home-card-line);
  border-radius: 2px;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(244, 246, 248, 0.82);
}

.page-home .home-beta__tip a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 214, 168, 0.5);
  padding-bottom: 1px;
}

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

/* ---------- 订阅 ---------- */
.page-home .home-sub {
  background: var(--fog);
  color: var(--ink);
}

.page-home .home-sub__panel {
  display: grid;
  gap: clamp(20px, 3.5vw, 32px);
  padding: clamp(24px, 4.5vw, 44px);
  border-radius: 3px;
  background: var(--yellow);
  border-left: 6px solid var(--ink);
}

.page-home .home-sub__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(14, 27, 44, 0.72);
}

.page-home .home-sub__copy .yy-h3,
.page-home .home-sub__copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 4.6vw, 28px);
  font-weight: 900;
  line-height: 1.3;
  color: var(--ink);
}

.page-home .home-sub__text {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(14, 27, 44, 0.82);
  max-width: 40em;
}

.page-home .home-sub__actions {
  display: grid;
  justify-items: start;
  gap: 12px;
}

.page-home .home-sub__cta {
  background: var(--ink);
  color: var(--fog);
  border-color: var(--ink);
}

.page-home .home-sub__cta:hover,
.page-home .home-sub__cta:focus-visible {
  background: var(--ink-3);
  border-color: var(--ink-3);
}

.page-home .home-sub__mini {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 27, 44, 0.35);
  padding-bottom: 2px;
}

.page-home .home-sub__mini:hover,
.page-home .home-sub__mini:focus-visible {
  border-bottom-color: var(--ink);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-home .home-help__tiles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .home-changes__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-home .home-change {
    padding: 22px 20px 24px;
  }

  .page-home .home-beta__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .home-sub__panel {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-home .home-sub__actions {
    justify-items: end;
    text-align: right;
  }
}

@media (min-width: 960px) {
  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-home .home-hero__stage {
    padding-bottom: 46px;
  }

  .page-home .home-hero__card {
    position: absolute;
    left: -28px;
    bottom: 0;
    width: min(330px, 72%);
    background: rgba(14, 27, 44, 0.72);
  }

  .page-home .home-hero__meter {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(14, 27, 44, 0.6);
  }

  .page-home .home-help__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

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

@media (min-width: 1200px) {
  .page-home .home-hero__stage {
    padding-bottom: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-rail__item,
  .page-home .home-rail__arrow,
  .page-home .home-change,
  .page-home .home-tile,
  .page-home .home-tile__arrow,
  .page-home .home-changes__node {
    transition: none;
  }

  .page-home .home-rail__item:hover,
  .page-home .home-rail__item:focus-visible,
  .page-home .home-change:hover,
  .page-home .home-help__tiles .home-tile:hover,
  .page-home .home-help__tiles .home-tile:focus-visible {
    transform: none;
  }
}
<<<END>>>