.page-home {
  --home-line: 1px solid var(--line);
  --home-gap: clamp(1.1rem, 2.6vw, 1.8rem);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-900);
  color: var(--fg);
  padding: clamp(4.5rem, 12vw, 9rem) 0 clamp(2.5rem, 6vw, 4.5rem);
}

.page-home .hero__sky {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-home .hero__sky img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.page-home .hero__sky::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 13, 24, 0.72) 0%, rgba(14, 23, 48, 0.45) 45%, var(--ink-900) 96%);
}

.page-home .hero__rings {
  position: absolute;
  z-index: -1;
  top: -22%;
  right: -14%;
  width: min(780px, 88vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: repeating-radial-gradient(circle at 50% 50%, rgba(59, 125, 191, 0.3) 0 1px, transparent 1px 74px);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 18%, transparent 74%);
  mask-image: radial-gradient(circle at 50% 50%, #000 18%, transparent 74%);
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: clamp(0.9rem, 2vw, 1.4rem);
}

.page-home .hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 8.4vw, 6.2rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper-bright);
  text-wrap: balance;
  max-width: 20ch;
}

.page-home .hero__title em {
  font-style: normal;
  color: var(--amber);
}

.page-home .hero__lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  line-height: 1.85;
  color: var(--mist);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.4rem;
}

.page-home .hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 3vw, 1.75rem);
  margin-top: clamp(1.4rem, 4vw, 2.6rem);
  padding-top: clamp(1rem, 2.5vw, 1.5rem);
  border-top: 1px solid var(--line);
}

.page-home .hero__fact {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}

.page-home .hero__fact-num {
  font-size: clamp(1.6rem, 4.6vw, 2.4rem);
  line-height: 1;
  color: var(--paper-bright);
  letter-spacing: -0.03em;
}

.page-home .hero__fact-label {
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 四道回声入口 ---------- */
.page-home .gates {
  display: grid;
  gap: var(--home-gap);
  align-items: start;
  margin-top: clamp(1.75rem, 4vw, 3rem);
}

.page-home .gate {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  min-width: 0;
  padding: clamp(1.25rem, 2.6vw, 1.9rem);
  padding-left: clamp(1.25rem, 2.6vw, 1.9rem);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--fg);
  text-decoration: none;
  overflow: hidden;
  transition: transform 240ms ease, border-color 240ms ease, background-color 240ms ease;
}

.page-home .gate::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--gate-accent, var(--blue));
}

.page-home .gate--blue { --gate-accent: var(--blue); }
.page-home .gate--green { --gate-accent: var(--green); }
.page-home .gate--yellow { --gate-accent: var(--yellow); }
.page-home .gate--red { --gate-accent: var(--red); }

.page-home .gate:hover {
  transform: translateY(-3px);
  border-color: var(--gate-accent, var(--blue));
  background: var(--ink-700);
}

.page-home .gate__num {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-home .gate .tag {
  align-self: flex-start;
}

.page-home .gate__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper-bright);
}

.page-home .gate__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-home .gate__go {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-home .gate__go::after {
  content: " →";
}

.page-home .gates__figure {
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
}

.page-home .gates__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: var(--home-line);
  border-radius: var(--radius);
}

.page-home .gates__figure figcaption {
  margin-top: 0.7rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 会员层级 ---------- */
.page-home .levels__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  margin-top: clamp(1.5rem, 3.5vw, 2.5rem);
}

.page-home .levels__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-home .level {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.35rem 1rem;
  align-items: baseline;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--rule);
}

.page-home .level__num {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--blue);
}

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

.page-home .level__body h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--fg);
}

.page-home .level__body p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--fg-muted);
}

.page-home .level .tag {
  grid-column: 2;
  justify-self: start;
  margin-top: 0.35rem;
}

.page-home .levels__cta {
  margin-top: clamp(1.5rem, 3vw, 2rem);
  padding-top: clamp(1.1rem, 2.5vw, 1.6rem);
  border-top: 1px solid var(--rule);
}

.page-home .levels__cta p {
  margin: 0 0 1rem;
  max-width: 52ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--fg-muted);
}

.page-home .levels__aside {
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 2.5vw, 1.6rem);
}

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

.page-home .levels__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.page-home .levels__figure figcaption {
  margin-top: 0.7rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--fg-muted);
}

/* ---------- 城市频道 ---------- */
.page-home .cities__figure {
  margin: clamp(1.5rem, 3.5vw, 2.4rem) 0 clamp(1.75rem, 4vw, 2.75rem);
}

.page-home .cities__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: var(--home-line);
  border-radius: var(--radius);
}

.page-home .cities__figure figcaption {
  margin-top: 0.7rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .cities__grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.page-home .city-index {
  list-style: none;
  margin: 0.6rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
}

.page-home .city-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 200ms ease, border-color 200ms ease, background-color 200ms ease;
}

.page-home .city-index__link:hover,
.page-home .city-index__link.is-active {
  color: var(--ink-900);
  background: var(--amber);
  border-color: var(--amber);
}

.page-home .city-index__time {
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  opacity: 0.75;
}

.page-home .cities__stream {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
}

.page-home .city-card {
  padding: clamp(1.1rem, 2.4vw, 1.6rem) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-home .city-card:last-child {
  border-bottom: 1px solid var(--line);
}

.page-home .city-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.9rem;
  margin-bottom: 0.6rem;
}

.page-home .city-card__num {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--yellow);
}

.page-home .city-card__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--paper-bright);
}

.page-home .city-card__text {
  margin: 0 0 0.5rem;
  max-width: 58ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-home .city-card__meta {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
}

/* ---------- 同栏对照 ---------- */
.page-home .compare__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  margin-top: clamp(1.5rem, 3.5vw, 2.5rem);
}

.page-home .compare__lead {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-home .compare__stat {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--fg-muted);
}

.page-home .compare__stat .mono {
  display: inline-block;
  margin-right: 0.4rem;
  font-size: 1.35rem;
  color: var(--blue);
}

.page-home .compare__hint {
  margin: 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--amber);
  background: rgba(232, 139, 60, 0.08);
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--fg);
}

.page-home .compare__details {
  min-width: 0;
  border-top: 1px solid var(--rule);
}

.page-home .compare-item {
  border-bottom: 1px solid var(--rule);
}

.page-home .compare-item summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--fg);
}

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

.page-home .compare-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--blue);
}

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

.page-home .compare-item p {
  margin: 0 0 1rem;
  max-width: 56ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--fg-muted);
}

/* ---------- 同步节奏 ---------- */
.page-home .updates__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-home .updates__title {
  margin: 0.5rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper-bright);
}

.page-home .updates__lede {
  margin: 0 0 1.5rem;
  max-width: 52ch;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-home .updates__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-home .updates__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

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

.page-home .updates__num {
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--amber);
  white-space: nowrap;
}

.page-home .updates__label {
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 信任与联系 ---------- */
.page-home .trust__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-home .trust__title {
  margin: 0.5rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--paper-bright);
}

.page-home .trust__lede {
  margin: 0 0 1rem;
  max-width: 52ch;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-home .trust__main .btn {
  margin-top: 0.6rem;
}

.page-home .trust__contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.page-home .trust__contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
}

.page-home .trust__label {
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--yellow);
}

.page-home .trust__value {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper-bright);
  text-decoration: none;
  word-break: break-word;
}

.page-home a.trust__value:hover {
  color: var(--amber);
}

.page-home .trust__note {
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-home .trust__legal {
  margin: clamp(2rem, 4vw, 3rem) 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-home .gate:nth-child(even) {
    margin-top: 2.5rem;
  }

  .page-home .level {
    grid-template-columns: 3rem minmax(0, 1fr) auto;
    padding: 1.35rem 0;
  }

  .page-home .level .tag {
    grid-column: 3;
    margin-top: 0;
  }
}

@media (min-width: 900px) {
  .page-home .hero__inner {
    max-width: 62rem;
  }

  .page-home .levels__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.75fr);
    align-items: start;
  }

  .page-home .level:nth-child(2) {
    padding-left: 1.25rem;
  }

  .page-home .level:nth-child(3) {
    padding-left: 2.5rem;
  }

  .page-home .level:nth-child(4) {
    padding-left: 3.75rem;
  }

  .page-home .cities__grid {
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .cities__rail {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-home .city-index {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    margin-top: 0.8rem;
  }

  .page-home .city-index__link {
    width: 100%;
    justify-content: space-between;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    padding: 0.6rem 0.2rem;
  }

  .page-home .compare__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-home .updates__grid,
  .page-home .trust__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-home .hero__title {
    max-width: 18ch;
  }

  .page-home .cities__grid {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .gate,
  .page-home .city-index__link {
    transition: none;
  }

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