.page-home {
  --home-ink-soft: rgba(244, 246, 249, .6);
  --home-rule-dark: rgba(216, 222, 232, .18);
}

.page-home [hidden] {
  display: none !important;
}

.page-home :is(a, button, summary):focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--r-xs);
}

/* ---------- 首屏 ---------- */

.page-home .hero-home {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(20, 210, 194, .16) 0%, rgba(20, 210, 194, 0) 58%),
    var(--ink);
  color: var(--paper);
  padding: calc(var(--header-offset) + 26px) 0 56px;
}

.page-home .hero-track {
  display: none;
  position: absolute;
  right: 0;
  bottom: 0;
  width: 66%;
  height: 44%;
  opacity: .55;
  pointer-events: none;
  z-index: 0;
}

.page-home .hero-shell {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 36px;
}

.page-home .hero-context {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-home .hero-title {
  margin: 0;
  font-size: clamp(30px, 8.4vw, 62px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-home .hero-lede {
  margin: 20px 0 0;
  max-width: 42ch;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(244, 246, 249, .82);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
}

.page-home .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  margin: 34px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid var(--home-rule-dark);
}

.page-home .hero-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-home .hero-stat-num {
  font-size: 22px;
  font-weight: 600;
  color: var(--paper);
  letter-spacing: .01em;
}

.page-home .hero-stat-label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--home-ink-soft);
}

.page-home .hero-art {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-lg);
  background: var(--ink-2);
  box-shadow: var(--shadow-2);
}

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

.page-home .hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(146deg, rgba(255, 74, 28, .74) 0%, rgba(255, 138, 30, .42) 48%, rgba(13, 27, 46, .34) 100%);
}

/* ---------- 三条内容线 ---------- */

.page-home .lines-section {
  position: relative;
}

.page-home .line-tabs {
  margin-top: 34px;
}

.page-home .line-tabs .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  width: max-content;
  max-width: 100%;
  padding: 6px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-1);
}

.page-home .line-tabs .tab {
  appearance: none;
  border: 0;
  border-radius: var(--r-pill);
  padding: 10px 20px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .line-tabs .tab:hover {
  background: var(--mist);
}

.page-home .line-tabs .tab[aria-selected="true"] {
  background: var(--grad-warm);
  color: var(--paper);
}

.page-home .line-panel {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.page-home .line-panel-title {
  margin: 0 0 14px;
  font-size: clamp(20px, 3.4vw, 27px);
  font-weight: 800;
  line-height: 1.32;
  color: var(--ink);
}

.page-home .line-panel-copy p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-home .line-facts {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-home .line-facts li {
  position: relative;
  padding: 13px 0 13px 24px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-2);
}

.page-home .line-facts li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 21px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-home .line-panel-media {
  margin: 0;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-1);
}

.page-home .line-panel-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 640 / 420;
  object-fit: cover;
}

.page-home .line-panel-media .media-cap {
  padding: 11px 16px;
  border-top: 1px solid var(--line);
  background: var(--mist);
  font-size: 13px;
  line-height: 1.6;
  color: var(--gray);
}

/* ---------- 更新节奏 ---------- */

.page-home .rhythm-grid {
  display: grid;
  gap: 32px;
}

.page-home .rhythm-copy .section-title {
  color: var(--paper);
}

.page-home .rhythm-copy .eyebrow {
  color: var(--cyan);
}

.page-home .rhythm-lede {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(244, 246, 249, .84);
}

.page-home .rhythm-note {
  margin: 14px 0 26px;
  max-width: 48ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--home-ink-soft);
}

.page-home .link-arrow--cyan {
  color: var(--cyan);
}

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

.page-home .rhythm-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  grid-template-areas:
    "num name"
    "num desc";
  gap: 4px 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--home-rule-dark);
  transition: padding-left var(--dur) var(--ease);
}

.page-home .rhythm-num {
  grid-area: num;
  padding-top: 3px;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
}

.page-home .rhythm-name {
  grid-area: name;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-home .rhythm-desc {
  grid-area: desc;
  font-size: 14px;
  line-height: 1.6;
  color: var(--home-ink-soft);
}

/* ---------- 三步上手 ---------- */

.page-home .step-list {
  display: grid;
  gap: 20px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .step-item {
  position: relative;
  overflow: hidden;
  padding: 26px 24px 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-1);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-home .step-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--grad-warm);
}

.page-home .step-index {
  display: inline-block;
  padding: 4px 11px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--flame);
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
}

.page-home .step-title {
  margin: 16px 0 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
}

.page-home .step-text {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-2);
}

/* ---------- 服务支持 ---------- */

.page-home .support-grid {
  display: grid;
  gap: 36px;
}

.page-home .support-lede {
  margin: 16px 0 26px;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-2);
}

.page-home .support-channels {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-home .support-channel {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .support-label {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gray);
}

.page-home .support-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  word-break: break-word;
}

.page-home .support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .support-faq {
  padding: 6px 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-1);
}

.page-home .support-faq-title {
  margin: 18px 0 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.page-home .support-detail {
  border-bottom: 1px solid var(--line);
}

.page-home .support-detail:last-child {
  border-bottom: 0;
}

.page-home .support-detail summary {
  position: relative;
  display: block;
  padding: 16px 32px 16px 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.page-home .support-detail summary::-webkit-details-marker {
  display: none;
}

.page-home .support-detail summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--flame);
  transition: color var(--dur) var(--ease);
}

.page-home .support-detail[open] summary::after {
  content: "–";
  color: var(--cyan);
}

.page-home .support-detail p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-2);
}

.page-home .support-foot {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.85;
  color: var(--gray);
}

.page-home .support-foot .link-arrow {
  margin-left: 4px;
}

/* ---------- 悬停 ---------- */

@media (hover: hover) {
  .page-home .step-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2);
  }

  .page-home .rhythm-item:hover {
    padding-left: 8px;
  }
}

/* ---------- 平板及以上 ---------- */

@media (min-width: 680px) {
  .page-home .hero-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .support-channel {
    justify-content: space-between;
  }
}

@media (min-width: 860px) {
  .page-home .hero-home {
    padding: calc(var(--header-offset) + 52px) 0 88px;
  }

  .page-home .hero-shell {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    align-items: center;
    gap: 52px;
  }

  .page-home .hero-track {
    display: block;
  }

  .page-home .hero-art {
    border-radius: 0;
    clip-path: polygon(15% 0, 100% 0, 100% 100%, 0 100%);
    aspect-ratio: 720 / 640;
    box-shadow: none;
  }

  .page-home .hero-art img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .page-home .step-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    align-items: start;
  }

  .page-home .step-item:nth-child(2) {
    margin-top: 34px;
  }
}

@media (min-width: 960px) {
  .page-home .line-panel {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: start;
    gap: 48px;
  }

  .page-home .line-panel-media {
    margin-top: 6px;
  }

  .page-home .rhythm-grid {
    grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
    gap: 64px;
    align-items: start;
  }

  .page-home .support-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.04fr);
    gap: 64px;
    align-items: start;
  }
}

@media (min-width: 1240px) {
  .page-home .hero-shell {
    gap: 64px;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-home .step-item,
  .page-home .rhythm-item,
  .page-home .line-tabs .tab,
  .page-home .support-detail summary::after {
    transition: none;
  }

  .page-home .step-item:hover,
  .page-home .rhythm-item:hover {
    transform: none;
    padding-left: 0;
  }
}
<<<END>>>