.page-home {
  --home-grid: rgba(30, 42, 68, 0.55);
  --home-panel: rgba(11, 16, 32, 0.72);
}

.page-home .page-context {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 22px;
  padding-bottom: 10px;
}

.page-home .page-context-note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--c-dim);
  text-transform: uppercase;
}

/* ===== 首屏 ===== */
.page-home .hero {
  position: relative;
  padding-top: 14px;
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-home .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

.page-home .hero-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 620px;
}

.page-home .hero-copy h1 {
  font-size: clamp(40px, 6.4vw, 84px);
  line-height: 1;
  letter-spacing: -0.025em;
  font-weight: 900;
  margin: 0;
  color: var(--c-text);
}

.page-home .hero-copy .lede {
  font-size: clamp(15px, 1.2vw, 18px);
  line-height: 1.75;
  margin: 0;
  max-width: 56ch;
}

.page-home .hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.page-home .hero-side {
  font-size: 13px;
  color: var(--c-dim);
  border-left: 2px solid var(--c-cyan);
  padding-left: 12px;
  line-height: 1.7;
  margin: 6px 0 0;
}

.page-home .hero-visual {
  position: relative;
  width: 100%;
  max-width: 620px;
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--c-grid);
}

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

.page-home .hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 50%, transparent 33%, rgba(39, 230, 214, 0.45) 33.3%, transparent 33.7%),
    radial-gradient(circle at 50% 50%, transparent 48%, rgba(39, 230, 214, 0.24) 48.3%, transparent 48.7%),
    radial-gradient(circle at 50% 50%, transparent 62%, rgba(122, 92, 255, 0.22) 62.3%, transparent 62.7%);
  mix-blend-mode: screen;
}

/* ===== 订阅数据带 ===== */
.page-home .sub-band {
  padding-block: clamp(48px, 6vw, 88px);
}

.page-home .band-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-home .band-head h2 {
  font-size: clamp(26px, 3.4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.12;
  margin: 0;
}

.page-home .band-stage {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-top: 1px solid var(--c-grid);
  border-bottom: 1px solid var(--c-grid);
  background: var(--c-panel);
}

.page-home .band-stage .band-texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  z-index: 0;
  pointer-events: none;
}

.page-home .band-stage .data-band {
  position: relative;
  z-index: 1;
}

.page-home .band-foot {
  padding-top: 22px;
  color: var(--c-dim);
  font-size: 13px;
  line-height: 1.8;
  max-width: 68ch;
}

.page-home .band-foot a {
  color: var(--c-cyan);
}

/* ===== 帮助拓扑 ===== */
.page-home .help-topology {
  padding-block: clamp(48px, 6vw, 96px);
}

.page-home .help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}

@media (min-width: 900px) {
  .page-home .help-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

.page-home .help-copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 580px;
}

.page-home .help-copy h2 {
  font-size: clamp(26px, 3.4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin: 0;
}

.page-home .help-copy p {
  color: var(--c-dim);
  line-height: 1.78;
  margin: 0;
}

.page-home .help-copy .num {
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: 1.15em;
  font-weight: 700;
  font-feature-settings: "tnum" 1;
}

.page-home .help-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

/* ===== 换机路径 ===== */
.page-home .switch-path {
  padding-block: clamp(48px, 6vw, 96px);
}

.page-home .switch-path .eyebrow {
  display: inline-flex;
}

.page-home .switch-path h2 {
  font-size: clamp(26px, 3.4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin: 12px 0 32px;
  max-width: 18ch;
}

.page-home .steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--c-grid);
}

@media (min-width: 720px) {
  .page-home .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-home .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-home .step {
  padding: 26px 20px 26px 0;
  border-bottom: 1px solid var(--c-grid);
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
}

.page-home .step + .step {
  border-left: 1px solid var(--c-grid);
  padding-left: 20px;
}

.page-home .step-no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
}

.page-home .step h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.005em;
}

.page-home .step p {
  color: var(--c-dim);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

.page-home .steps-foot {
  color: var(--c-dim);
  font-size: 13px;
  line-height: 1.8;
  margin-top: 22px;
  max-width: 68ch;
}

.page-home .steps-foot a {
  color: var(--c-cyan);
}

/* ===== 动态速览 ===== */
.page-home .news-preview {
  padding-block: clamp(48px, 6vw, 96px);
}

.page-home .section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}

.page-home .section-head h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  margin: 8px 0 0;
  letter-spacing: -0.012em;
}

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

.page-home .news-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--c-grid);
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

@media (min-width: 720px) {
  .page-home .news-item {
    grid-template-columns: 240px 1fr;
    gap: 28px;
    align-items: baseline;
  }
}

.page-home .news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-dim);
  flex-wrap: wrap;
}

.page-home .news-meta .dot {
  color: var(--c-grid);
}

.page-home .news-title {
  color: var(--c-text);
  font-size: 16px;
  line-height: 1.55;
  text-decoration: none;
  font-weight: 500;
  transition: color var(--dur) var(--ease);
}

.page-home .news-title:hover,
.page-home .news-title:focus-visible {
  color: var(--c-cyan);
}

/* ===== 信任与联系 ===== */
.page-home .trust-band {
  padding-block: clamp(48px, 6vw, 96px);
}

.page-home .trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

@media (min-width: 900px) {
  .page-home .trust-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

.page-home .trust-figure {
  margin: 0;
}

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

.page-home .trust-copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 580px;
}

.page-home .trust-copy h2 {
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.18;
  margin: 0;
}

.page-home .trust-copy > p {
  color: var(--c-dim);
  line-height: 1.78;
  margin: 0;
}

.page-home .contact-list {
  list-style: none;
  padding: 0;
  margin: 4px 0 0;
  border-top: 1px solid var(--c-grid);
}

.page-home .contact-list li {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-grid);
  font-size: 14px;
  line-height: 1.7;
}

.page-home .contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-dim);
  text-transform: uppercase;
}

.page-home .contact-list a {
  color: var(--c-text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-home .trust-copy .btn {
  align-self: flex-start;
  margin-top: 6px;
}

/* ===== 小工具 ===== */
.page-home .text-link {
  display: inline-block;
  color: var(--c-cyan);
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-decoration: none;
  border-bottom: 1px solid rgba(39, 230, 214, 0.35);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

/* ===== 窄屏微调 ===== */
@media (max-width: 639px) {
  .page-home .page-context-note {
    font-size: 10px;
    letter-spacing: 0.18em;
  }

  .page-home .contact-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-home .step + .step {
    border-left: 0;
  }

  .page-home .section-head {
    align-items: flex-start;
  }
}