.page-home {
  --home-grid-line: rgba(31, 59, 84, .3);
  --home-step-pad: 18px;
  display: block;
  padding-bottom: 12px;
}

.page-home .home-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 20px 0 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--gray);
}

.page-home .home-context-brand {
  color: var(--cyan);
  font-weight: 700;
}

.page-home .home-context-sep {
  width: 16px;
  height: 1px;
  background: var(--line-2);
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  position: relative;
  display: grid;
  gap: 30px;
  padding: 28px 0 48px;
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(var(--home-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--home-grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
}

.page-home .hero-main {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-home .hero-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-home .hero-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-home .hero-title-line {
  display: block;
}

.page-home .hero-title-line:last-child {
  color: var(--cyan);
}

.page-home .hero-lead {
  margin: 0;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--gray);
}

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

/* 首屏目录 */

.page-home .hero-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .22em;
  color: var(--gray);
}

.page-home .hero-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  counter-reset: hi;
}

.page-home .hero-index-list li {
  counter-increment: hi;
  min-width: 0;
}

.page-home .hero-index-list .toc-link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 10px 11px;
  border: 1px solid var(--line);
  background: rgba(18, 41, 61, .6);
  color: var(--text);
  font-size: .86rem;
  text-decoration: none;
  transition: border-color .25s var(--ease), color .25s var(--ease);
}

.page-home .hero-index-list .toc-link::before {
  content: counter(hi, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--cyan);
}

.page-home .hero-index-list .toc-link:hover,
.page-home .hero-index-list .toc-link:focus-visible,
.page-home .hero-index-list .toc-link[aria-current] {
  border-color: var(--cyan);
  color: var(--white);
  outline: none;
}

/* 首屏数据面板 */

.page-home .hero-panel {
  border: 2px solid var(--line-2);
  background: var(--bg-2);
  box-shadow: var(--hard);
  display: grid;
  align-content: start;
}

.page-home .hero-panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: .84rem;
}

.page-home .hero-panel-state {
  color: var(--white);
  font-weight: 600;
}

.page-home .hero-panel-head .tag {
  margin-left: auto;
}

.page-home .hero-panel-figure {
  margin: 0;
  border-bottom: 1px solid var(--line);
}

.page-home .hero-panel-figure .figure-media {
  display: block;
}

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

.page-home .hero-panel-body {
  padding: 18px 16px 20px;
  display: grid;
  gap: 18px;
}

.page-home .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 12px;
}

.page-home .hero-stat {
  display: grid;
  gap: 5px;
  padding-left: 10px;
  border-left: 2px solid var(--line);
  min-width: 0;
}

.page-home .hero-stat-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
}

.page-home .hero-stat-unit {
  margin-left: 3px;
  font-size: .74rem;
  color: var(--cyan);
}

.page-home .hero-stat-label {
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--gray);
}

.page-home .sync-meter {
  display: grid;
  gap: 8px;
}

.page-home .sync-meter-track {
  position: relative;
  display: block;
  height: 4px;
  background: var(--line);
  overflow: hidden;
}

.page-home .sync-meter-fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  transform-origin: left center;
  animation: home-sync 30s linear infinite;
}

.page-home .sync-meter-note {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .06em;
  color: var(--gray);
}

@keyframes home-sync {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .sync-meter-fill { animation: none; transform: scaleX(1); }
}

/* ---------- 章节通用 ---------- */

.page-home .home-section {
  padding: 48px 0;
}

.page-home .home-section + .home-section {
  border-top: 1px solid var(--line);
}

.page-home .home-head {
  display: grid;
  gap: 12px;
  padding-bottom: 22px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

.page-home .home-num {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-home .home-num::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent 72%);
}

.page-home .home-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.42rem, 4.4vw, 2.05rem);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-home .home-lead {
  margin: 0;
  max-width: 68ch;
  font-size: .96rem;
  line-height: 1.78;
  color: var(--gray);
}

/* ---------- 01 状态带 ---------- */

.page-home .status-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 2px solid var(--line);
}

.page-home .status-cell {
  display: grid;
  gap: 9px;
  align-content: start;
  padding: 18px 16px;
  background: var(--bg-2);
  min-width: 0;
}

.page-home .status-cell-label {
  margin: 0;
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--gray);
}

.page-home .status-cell-value {
  margin: 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px;
  font-family: var(--font-mono);
  color: var(--white);
}

.page-home .status-cell-value .num {
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-home .status-cell-value .unit {
  font-size: .78rem;
  color: var(--gray);
}

.page-home .status-cell-value--live {
  align-items: center;
  font-family: var(--font-body);
  font-size: .94rem;
  font-weight: 600;
  color: var(--green);
}

/* ---------- 02 三步 ---------- */

.page-home .steps-layout {
  display: grid;
  gap: 28px;
}

.page-home .steps-figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--bg-2);
  box-shadow: var(--hard);
}

.page-home .steps-figure .figure-media {
  display: block;
}

.page-home .steps-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .steps-figure .figure-caption {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--gray);
}

.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .step {
  position: relative;
  padding: 20px var(--home-step-pad) 22px 62px;
  border: 2px solid var(--line);
  background: var(--bg-2);
  transition: border-color .25s var(--ease);
}

.page-home .step-num {
  position: absolute;
  left: var(--home-step-pad);
  top: 21px;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--cyan);
}

.page-home .step-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--white);
}

.page-home .step-text {
  margin: 0;
  font-size: .92rem;
  line-height: 1.72;
  color: var(--gray);
}

.page-home .step--current {
  border-color: var(--cyan);
  box-shadow: var(--hard-cyan);
}

.page-home .step-tags {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ---------- 03 横向信息流 ---------- */

.page-home .flow-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 78%);
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--line-2) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-home .flow-rail::-webkit-scrollbar {
  height: 6px;
}

.page-home .flow-rail::-webkit-scrollbar-thumb {
  background: var(--line-2);
}

.page-home .flow-card {
  scroll-snap-align: start;
  display: grid;
  align-content: start;
  border: 2px solid var(--line);
  background: var(--bg-2);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}

.page-home .flow-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-home .flow-figure {
  margin: 0;
  border-bottom: 1px solid var(--line);
}

.page-home .flow-figure .figure-media {
  display: block;
}

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

.page-home .flow-card-body {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 20px 18px 22px;
}

.page-home .flow-card-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
}

.page-home .flow-card-text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--gray);
}

/* ---------- 04 会员权益 ---------- */

.page-home .benefit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-home .benefit {
  position: relative;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 24px 18px 24px;
  border: 2px solid var(--line);
  background: var(--bg-2);
  transition: border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}

.page-home .benefit::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--cyan);
}

.page-home .benefit:nth-child(2)::before { background: var(--violet); }
.page-home .benefit:nth-child(3)::before { background: var(--orange); }
.page-home .benefit:nth-child(4)::before { background: var(--green); }

.page-home .benefit:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
  box-shadow: var(--hard-cyan);
}

.page-home .benefit-mark {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .2em;
  color: var(--orange);
}

.page-home .benefit-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--white);
}

.page-home .benefit-text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--gray);
}

.page-home .plan-row {
  margin-top: 24px;
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: var(--bg-3);
  display: grid;
  gap: 16px;
}

.page-home .plan-row-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-home .plan-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-home .plan-item {
  display: grid;
  gap: 4px;
  padding-left: 12px;
  border-left: 2px solid var(--line-2);
}

.page-home .plan-name {
  font-family: var(--font-head);
  font-size: .98rem;
  font-weight: 700;
  color: var(--white);
}

.page-home .plan-fit {
  font-size: .84rem;
  color: var(--gray);
}

.page-home .plan-link {
  justify-self: start;
}

/* ---------- 05 换设备 ---------- */

.page-home .device-layout {
  display: grid;
  gap: 26px;
}

.page-home .device-body {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .device-body p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.82;
  color: var(--text);
}

.page-home .device-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.page-home .device-figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--bg-2);
}

.page-home .device-figure .figure-media {
  display: block;
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-home .status-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-home .flow-rail {
    grid-auto-columns: minmax(0, 58%);
  }
}

@media (min-width: 760px) {
  .page-home .home-section {
    padding: 58px 0;
  }

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

@media (min-width: 900px) {
  .page-home .steps-layout {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 36px;
    align-items: start;
  }

  .page-home .device-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
    gap: 40px;
    align-items: center;
  }

  .page-home .flow-rail {
    grid-auto-columns: 330px;
  }
}

@media (min-width: 1024px) {
  .page-home .hero {
    grid-template-columns: 172px minmax(0, 1fr) minmax(300px, 348px);
    gap: 42px;
    padding: 52px 0 68px;
    align-items: start;
  }

  .page-home .hero-index {
    grid-column: 1;
    grid-row: 1;
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-home .hero-index-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-home .hero-main {
    grid-column: 2;
    grid-row: 1;
  }

  .page-home .hero-panel {
    grid-column: 3;
    grid-row: 1;
  }
}

@media (min-width: 1060px) {
  .page-home .benefit-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>