.page-home {
  background: var(--ink-900);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

/* ============ 首屏封面 ============ */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.25rem, 2.6vw, 2rem) clamp(2.75rem, 6vw, 5rem);
  background:
    radial-gradient(circle at 82% 4%, rgba(56, 242, 208, 0.10), transparent 58%),
    radial-gradient(circle at 2% 92%, rgba(45, 108, 223, 0.14), transparent 62%),
    var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(216, 222, 226, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(216, 222, 226, 0.055) 1px, transparent 1px);
  background-size: var(--grid-cell) var(--grid-cell);
  pointer-events: none;
}

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

.page-home .home-hero__crumb {
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.page-home .home-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-home .home-hero__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.1rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.page-home .home-hero__title {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-home .home-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.78;
  color: var(--text-soft);
}

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.page-home .home-hero__cta {
  min-height: 44px;
}

.page-home .home-hero__index {
  margin-top: clamp(1.75rem, 3vw, 2.25rem);
  padding-top: 1.15rem;
  border-top: 1px solid var(--line-strong);
}

.page-home .home-hero__index-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 0.55rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-hero__index-list a {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.35rem 0;
  color: var(--text-soft);
  font-size: 0.9375rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .home-hero__index-list .mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

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

.page-home .home-hero__media {
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
  margin: 0;
}

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

/* ============ 分类轴 + 卡片瀑布 ============ */
.page-home .home-categories {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  background: var(--ink-800);
  border-bottom: 1px solid var(--line);
}

.page-home .home-categories__head {
  max-width: 62ch;
  margin-bottom: clamp(1.75rem, 3.5vw, 2.75rem);
}

.page-home .home-categories__title {
  margin: 0.5rem 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.6vw, 2.15rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-home .home-categories__lead {
  margin: 0;
  font-size: 0.9875rem;
  line-height: 1.78;
  color: var(--text-soft);
}

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

.page-home .home-axis__sticky {
  border: 1px solid var(--line);
  background: rgba(11, 27, 43, 0.55);
  padding: 1rem 1rem 1.15rem;
}

.page-home .home-axis__label {
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-home .home-axis__list {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.15rem;
}

.page-home .home-axis__link {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.5rem 0.4rem;
  color: var(--text-soft);
  font-size: 0.9375rem;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 150ms var(--ease), border-color 150ms var(--ease), background 150ms var(--ease);
}

.page-home .home-axis__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 0.05em;
}

.page-home .home-axis__link:hover,
.page-home .home-axis__link:focus-visible {
  color: var(--text);
  border-left-color: var(--cyan);
  background: rgba(56, 242, 208, 0.07);
}

.page-home .home-axis__figure {
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-home .home-axis__figure img {
  display: block;
  width: 100%;
  max-height: 190px;
  object-fit: cover;
  opacity: 0.85;
}

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

.page-home .home-card {
  --cc: var(--cyan);
  position: relative;
  background: rgba(11, 27, 43, 0.72);
  border: 1px solid var(--line);
  padding: 1.15rem 1.15rem 1.25rem;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), background 180ms var(--ease);
}

.page-home .home-card:nth-child(1) { --cc: var(--cyan); }
.page-home .home-card:nth-child(2) { --cc: var(--sage); }
.page-home .home-card:nth-child(3) { --cc: var(--cobalt); }
.page-home .home-card:nth-child(4) { --cc: var(--amber); }
.page-home .home-card:nth-child(5) { --cc: var(--haze); }

.page-home .home-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 2px;
  width: 0;
  background: var(--cc);
  transition: width 220ms var(--ease);
}

.page-home .home-card:hover,
.page-home .home-card:focus-within {
  border-color: var(--line-strong);
  background: rgba(11, 27, 43, 0.9);
  transform: translateY(-2px);
}

.page-home .home-card:hover::after,
.page-home .home-card:focus-within::after {
  width: 100%;
}

.page-home .home-card__head {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.page-home .home-card__num {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  line-height: 1;
  font-weight: 700;
  color: var(--cc);
  letter-spacing: -0.02em;
}

.page-home .home-card__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text);
}

.page-home .home-card__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--text-soft);
}

.page-home .home-card__list {
  margin: 0.95rem 0 0;
  padding: 0.9rem 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.5rem;
}

.page-home .home-card__list li {
  position: relative;
  padding-left: 0.95rem;
  font-size: 0.9rem;
  line-height: 1.66;
  color: var(--text-soft);
}

.page-home .home-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  background: var(--cc);
  opacity: 0.75;
}

.page-home .home-card__list--more {
  margin-top: 0.55rem;
  padding-top: 0.55rem;
  border-top: 1px dashed var(--line);
}

.page-home .home-card__more {
  margin-top: 0.85rem;
}

.page-home .home-card__more > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.45rem 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  border-bottom: 1px solid transparent;
  transition: color 150ms var(--ease), border-color 150ms var(--ease);
}

.page-home .home-card__more > summary::-webkit-details-marker {
  display: none;
}

.page-home .home-card__more > summary::after {
  content: "+";
  font-size: 0.95rem;
  color: var(--cc);
}

.page-home .home-card__more[open] > summary::after {
  content: "−";
}

.page-home .home-card__more > summary:hover,
.page-home .home-card__more > summary:focus-visible {
  color: var(--text);
  border-bottom-color: var(--line-strong);
}

.page-home .home-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1rem;
  padding-bottom: 2px;
  font-size: 0.875rem;
  color: var(--cc);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 150ms var(--ease);
}

.page-home .home-card__link:hover,
.page-home .home-card__link:focus-visible {
  border-bottom-color: currentColor;
}

/* ============ 本期更新 ============ */
.page-home .home-updates {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  background: var(--paper);
  color: var(--paper-ink);
  border-bottom: 1px solid rgba(11, 27, 43, 0.12);
}

.page-home .home-updates__head {
  max-width: 64ch;
  margin-bottom: clamp(1.75rem, 3.5vw, 2.5rem);
}

.page-home .home-updates__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--ink-700);
}

.page-home .home-updates__tag {
  display: inline-block;
  padding: 0.18rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  background: var(--amber);
  color: var(--ink-900);
}

.page-home .home-updates__tag--inline {
  margin-bottom: 0.5rem;
}

.page-home .home-updates__title {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  line-height: 1.26;
  letter-spacing: -0.015em;
  color: var(--ink-900);
}

.page-home .home-updates__lead {
  margin: 0;
  font-size: 0.9875rem;
  line-height: 1.78;
  color: var(--ink-700);
}

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

.page-home .home-updates__figure {
  margin: 0;
  border: 1px solid rgba(11, 27, 43, 0.18);
  background: var(--ink-900);
}

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

.page-home .home-updates__figure .media-frame__caption {
  color: var(--text-dim);
}

.page-home .home-updates__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.1rem;
}

.page-home .home-updates__item {
  padding-bottom: 1.1rem;
  border-bottom: 1px solid rgba(11, 27, 43, 0.12);
}

.page-home .home-updates__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-home .home-updates__item h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--ink-900);
}

.page-home .home-updates__item p {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-home .home-updates__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.5rem, 3vw, 2rem);
}

.page-home .home-updates__btn {
  min-height: 44px;
}

.page-home .home-updates .btn--ghost {
  color: var(--ink-900);
  border-color: rgba(11, 27, 43, 0.35);
}

.page-home .home-updates .btn--ghost:hover,
.page-home .home-updates .btn--ghost:focus-visible {
  border-color: var(--ink-900);
  background: rgba(11, 27, 43, 0.06);
}

/* ============ 三步路径 ============ */
.page-home .home-steps {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  background:
    linear-gradient(180deg, rgba(56, 242, 208, 0.05), transparent 42%),
    var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-home .home-steps__head {
  max-width: 58ch;
  margin-bottom: clamp(1.75rem, 3.5vw, 2.5rem);
}

.page-home .home-steps__title {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.6vw, 2.15rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-home .home-steps__list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--gap);
}

.page-home .home-step {
  position: relative;
  padding: 1.15rem 1.15rem 1.25rem;
  background: rgba(18, 41, 63, 0.6);
  border: 1px solid var(--line);
  border-top: 2px solid var(--line-cyan);
}

.page-home .home-step__num {
  display: block;
  margin-bottom: 0.6rem;
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-home .home-step__title {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--text);
}

.page-home .home-step__text {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-home .home-steps__figure {
  margin: clamp(1.75rem, 3.5vw, 2.5rem) 0 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

/* ============ 高频检索 + 联系通道 ============ */
.page-home .home-help {
  padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(3rem, 7vw, 5.5rem);
  background: var(--ink-900);
}

.page-home .home-help__grid {
  display: grid;
  gap: clamp(1.75rem, 3.5vw, 2.75rem);
}

.page-home .home-help__title {
  margin: 0.45rem 0 1.35rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-home .home-faq {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.05rem;
}

.page-home .home-faq__item {
  padding-bottom: 1.05rem;
  border-bottom: 1px solid var(--line);
}

.page-home .home-faq__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-home .home-faq__item h3 {
  position: relative;
  margin: 0 0 0.4rem;
  padding-left: 1rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text);
}

.page-home .home-faq__item h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--cobalt);
}

.page-home .home-faq__item p {
  margin: 0;
  font-size: 0.9125rem;
  line-height: 1.76;
  color: var(--text-soft);
}

.page-home .home-help__btn {
  margin-top: 1.5rem;
  min-height: 44px;
}

.page-home .home-contact {
  padding: clamp(1.25rem, 2.6vw, 1.85rem);
  background: rgba(18, 41, 63, 0.82);
  border: 1px solid var(--line-strong);
  border-top: 2px solid var(--amber);
}

.page-home .home-contact__label {
  margin: 0 0 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-home .home-contact__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  line-height: 1.34;
  color: var(--text);
}

.page-home .home-contact__lead {
  margin: 0 0 1.15rem;
  font-size: 0.9125rem;
  line-height: 1.76;
  color: var(--text-soft);
}

.page-home .home-contact__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.page-home .home-contact .contact-line {
  display: grid;
  gap: 0.15rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}

.page-home .home-contact .contact-line:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-home .home-contact .contact-line__label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.page-home .home-contact .contact-line__value {
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--text);
  word-break: break-word;
}

.page-home .home-contact__btn {
  margin-top: 1.35rem;
  min-height: 44px;
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-home .home-updates__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

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

@media (min-width: 860px) {
  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-home .home-categories__layout {
    grid-template-columns: 232px minmax(0, 1fr);
  }

  .page-home .home-axis {
    align-self: start;
    position: sticky;
    top: 96px;
  }

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

  .page-home .home-card:nth-child(even) {
    margin-top: 2.25rem;
  }

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

@media (min-width: 1100px) {
  .page-home .home-categories__layout {
    grid-template-columns: 252px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-home .home-updates__grid {
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
    gap: clamp(2rem, 4vw, 3rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-card,
  .page-home .home-card::after,
  .page-home .home-card__link,
  .page-home .home-axis__link,
  .page-home .home-hero__index-list a {
    transition: none;
  }

  .page-home .home-card:hover,
  .page-home .home-card:focus-within {
    transform: none;
  }
}
<<<END>>>