.page-home {
  --home-gap: clamp(0.9rem, 2vw, 1.35rem);
  --home-section-space: clamp(3rem, 7vw, 5.5rem);
  display: block;
}

/* ============ 首屏封面 ============ */
.page-home .cover {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(2rem, 5vw, 3.25rem) clamp(2.5rem, 6vw, 4.5rem);
  border-bottom: 1px solid var(--steel);
  background:
    radial-gradient(115% 80% at 88% 4%, rgba(34, 211, 238, 0.16), transparent 62%),
    radial-gradient(90% 70% at 2% 98%, rgba(255, 122, 26, 0.12), transparent 66%),
    var(--void);
}

.page-home .cover__glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.6;
  pointer-events: none;
}

.page-home .cover__svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-home .cover__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}

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

.page-home .cover__title {
  margin: 0.6rem 0 0;
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 9vw, 4.75rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--ice);
}

.page-home .cover__deck {
  margin: 1.15rem 0 0;
  max-width: 40ch;
  font-size: clamp(0.98rem, 1.5vw, 1.08rem);
  line-height: 1.75;
  color: var(--mist);
}

.page-home .cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.page-home .cover__index {
  margin: 1.9rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--steel);
  border: 1px solid var(--steel);
  box-shadow: var(--shadow-hard);
}

.page-home .cover__index li {
  background: var(--panel);
}

.page-home .cover__index a {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  color: var(--ice);
  text-decoration: none;
  font-size: 0.95rem;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-home .cover__idx {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-home .cover__idx-label {
  flex: 1 1 auto;
  min-width: 0;
}

.page-home .cover__idx-mark {
  color: var(--mist);
  transition: transform 0.25s var(--ease), color 0.25s var(--ease);
}

.page-home .cover__index a:hover,
.page-home .cover__index a:focus-visible {
  background: rgba(34, 211, 238, 0.1);
  color: var(--focus);
}

.page-home .cover__index a:hover .cover__idx-mark,
.page-home .cover__index a:focus-visible .cover__idx-mark {
  color: var(--orange);
  transform: translateX(4px);
}

.page-home .cover__index a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: -2px;
}

.page-home .cover__media {
  margin: 0;
  align-self: stretch;
}

/* ============ 章节骨架 ============ */
.page-home .home-section {
  padding-block: var(--home-section-space);
  scroll-margin-top: 5rem;
}

.page-home .home-section--cases {
  border-top: 1px solid var(--steel);
  background: linear-gradient(180deg, rgba(12, 26, 43, 0.55), transparent 55%);
}

.page-home .home-section--revisit {
  border-top: 1px solid var(--steel);
  border-bottom: 1px solid var(--steel);
  background:
    linear-gradient(105deg, rgba(14, 116, 144, 0.16), transparent 58%),
    var(--void-deep);
}

.page-home .home-section--support {
  background: var(--void);
}

.page-home .home-section__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  max-width: 62ch;
  margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
}

.page-home .home-section__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 4.2vw, 2.35rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ice);
}

.page-home .home-section__lead {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ============ Bento 信息板 ============ */
.page-home .bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
}

.page-home .bento__cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: clamp(1.1rem, 2.4vw, 1.6rem);
  min-width: 0;
}

.page-home .bento__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-home .bento__body {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-home .bento__media {
  margin: 0.35rem 0 0;
}

.page-home .bento__link {
  margin-top: auto;
  align-self: flex-start;
  padding-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.45);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-home .bento__link:hover,
.page-home .bento__link:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

.page-home .bento__link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* 数据带 */
.page-home .data-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 0;
  background: var(--steel);
  border: 1px solid var(--steel);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-home .data-band__item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1.1rem 1rem;
  background: linear-gradient(165deg, var(--panel), var(--panel-soft));
  min-width: 0;
}

.page-home .data-band__num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3.4vw, 1.85rem);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--cyan);
  line-height: 1.1;
}

.page-home .data-band__label {
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* ============ 案例索引 ============ */
.page-home .cases__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: start;
}

.page-home .case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
}

.page-home .case-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: clamp(1.1rem, 2.4vw, 1.5rem);
  background: var(--panel);
  border: 1px solid var(--steel);
  box-shadow: var(--shadow-hard);
  transition: transform 0.26s var(--ease), border-color 0.26s var(--ease), box-shadow 0.26s var(--ease);
}

.page-home .case-card:hover,
.page-home .case-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--cyan);
  box-shadow: 0 18px 34px -22px rgba(0, 0, 0, 0.95);
}

.page-home .case-card__no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--cyan-deep);
}

.page-home .case-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ice);
}

.page-home .case-card__body {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist);
}

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

/* ============ 回访路径 ============ */
.page-home .path-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: center;
}

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

.page-home .path__lead .home-section__lead {
  margin-top: 0.6rem;
}

.page-home .path__list {
  margin: 1.5rem 0 0;
  padding: 0 0 0 1.15rem;
  list-style: none;
  border-left: 1px solid var(--steel);
  display: grid;
  gap: 0.9rem;
}

.page-home .path__item {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--ice);
}

.page-home .path__node {
  position: absolute;
  left: calc(-1.15rem - 4px);
  top: 0.5em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(57, 242, 154, 0.16);
}

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

.page-home .path__note {
  margin: 1.4rem 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .path__link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.45);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-home .path__link:hover,
.page-home .path__link:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

.page-home .path__link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

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

/* ============ 帮助与反馈 ============ */
.page-home .help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--steel);
  border: 1px solid var(--steel);
  box-shadow: var(--shadow-hard);
}

.page-home .help-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  background: var(--panel);
  text-decoration: none;
  transition: background-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-home .help-item__no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-home .help-item__name {
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ice);
}

.page-home .help-item__desc {
  font-size: 0.88rem;
  line-height: 1.68;
  color: var(--mist);
}

.page-home .help-item:hover,
.page-home .help-item:focus-visible {
  background: rgba(34, 211, 238, 0.09);
  transform: translateY(-2px);
}

.page-home .help-item:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: -2px;
}

.page-home .help-item--accent {
  background: linear-gradient(158deg, rgba(255, 122, 26, 0.16), var(--panel) 62%);
  border-top: 3px solid var(--orange);
}

.page-home .help-item--accent .help-item__no {
  color: var(--orange);
}

.page-home .help-item--accent:hover,
.page-home .help-item--accent:focus-visible {
  background: linear-gradient(158deg, rgba(255, 122, 26, 0.26), var(--panel) 62%);
}

/* ============ 响应式 ============ */
@media (min-width: 760px) {
  .page-home .cover__index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .cover__index a {
    padding: 0.95rem 1.1rem;
  }

  .page-home .home-section__head {
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 1.25rem;
    row-gap: 0.75rem;
    max-width: 72ch;
  }

  .page-home .home-section__head .section-num {
    grid-row: span 2;
    align-self: start;
  }

  .page-home .bento {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .bento__cell--wide {
    grid-column: span 8;
  }

  .page-home .bento__cell--tall {
    grid-column: span 4;
    margin-top: 1rem;
  }

  .page-home .bento__cell--third {
    grid-column: span 4;
  }

  .page-home .bento__cell--full {
    grid-column: 1 / -1;
  }

  .page-home .data-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 980px) {
  .page-home .cover__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-home .cover__media {
    margin-top: 0.4rem;
  }

  .page-home .cases__split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .case-grid {
    grid-template-columns: 1fr;
  }

  .page-home .path-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }
}

@media (min-width: 1180px) {
  .page-home .case-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .cases__split {
    grid-template-columns: 1fr;
  }

  .page-home .cases__media {
    max-height: 22rem;
    overflow: hidden;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .case-card,
  .page-home .help-item,
  .page-home .cover__idx-mark {
    transition: none;
  }

  .page-home .case-card:hover,
  .page-home .case-card:focus-within,
  .page-home .help-item:hover,
  .page-home .help-item:focus-visible,
  .page-home .cover__index a:hover .cover__idx-mark,
  .page-home .cover__index a:focus-visible .cover__idx-mark {
    transform: none;
  }
}
<<<END>>>