.page-home {
  display: block;
  background: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-home .ph-wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.page-home .mono {
  font-family: var(--font-mono);
}

/* ============ 首屏 ============ */
.page-home .hero {
  position: relative;
  background: var(--c-ink);
  color: var(--c-paper);
  border-bottom: 1px solid var(--line-dark);
  overflow: hidden;
}

.page-home .hero-plot {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.08;
  pointer-events: none;
}

.page-home .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
}

.page-home .hero-lead {
  padding: 40px 20px 32px;
  border-bottom: 1px solid var(--line-dark-soft);
}

.page-home .crumb {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-stone);
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-home .crumb .mono {
  color: var(--c-mustard);
}

.page-home .hero h1 {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: clamp(36px, 8vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--c-paper);
}

.page-home .hero .lede {
  margin: 20px 0 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-lake-soft);
}

.page-home .hero-facts {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark-soft);
}

.page-home .hero-facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-dark-soft);
  font-size: 13px;
}

.page-home .hero-facts .k {
  color: var(--c-stone);
}

.page-home .hero-facts .v {
  font-family: var(--font-mono);
  color: var(--c-mustard);
  white-space: nowrap;
}

.page-home .hero-cta {
  margin: 26px 0 0;
}

.page-home .hero-matrix {
  position: relative;
  min-width: 0;
  padding: 28px 20px 34px;
}

.page-home .matrix-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line-dark-soft);
  background: rgba(11, 32, 28, 0.72);
}

.page-home .matrix-scroll:focus-visible {
  outline: 2px solid var(--c-signal);
  outline-offset: 2px;
}

.page-home .compare-matrix {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
  font-size: 12.5px;
  line-height: 1.55;
}

.page-home .compare-matrix caption {
  caption-side: top;
  text-align: left;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-lake-soft);
  border-bottom: 1px solid var(--line-dark-soft);
}

.page-home .compare-matrix th,
.page-home .compare-matrix td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-dark-soft);
  border-right: 1px solid var(--line-dark-soft);
}

.page-home .compare-matrix tr > *:last-child {
  border-right: 0;
}

.page-home .compare-matrix tbody tr:last-child > * {
  border-bottom: 0;
}

.page-home .compare-matrix thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--c-lake-soft);
  background: rgba(30, 124, 147, 0.14);
}

.page-home .compare-matrix tbody th {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  color: var(--c-mustard);
  background: rgba(201, 162, 39, 0.07);
}

.page-home .compare-matrix tbody td {
  color: var(--c-paper);
}

.page-home .compare-matrix tbody tr:nth-child(even) td {
  background: rgba(134, 200, 216, 0.05);
}

.page-home .compare-matrix tbody tr:hover td {
  background: rgba(226, 96, 31, 0.12);
}

.page-home .matrix-hint {
  margin: 10px 0 0;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--c-stone);
}

/* ============ 通用分区 ============ */
.page-home .band {
  padding: 52px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .band-qa {
  background: var(--c-paper);
}

.page-home .band-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 32px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-strong);
}

.page-home .band-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.09em;
  color: var(--c-lake);
}

.page-home .band-code.is-dark {
  color: var(--c-lake-soft);
}

.page-home .band-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: clamp(26px, 5vw, 40px);
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: var(--c-ink);
}

.page-home .band-title.is-dark {
  color: var(--c-paper);
}

/* ============ 服务层级 ============ */
.page-home .levels-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

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

.page-home .levels-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-soft);
  background: var(--wash);
}

.page-home .levels-figure figcaption {
  margin-top: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--c-lake);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-stone);
}

.page-home .levels-list {
  min-width: 0;
}

.page-home .level-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 22px 0;
  border-top: 1px solid var(--line-soft);
}

.page-home .level-row:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-home .level-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-mustard);
}

.page-home .level-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: 23px;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}

.page-home .level-name small {
  display: block;
  margin-top: 7px;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0;
  color: var(--c-moss);
}

.page-home .level-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-ink);
}

/* ============ 资源下载 ============ */
.page-home .dl-band {
  position: relative;
  background: var(--c-ink);
  color: var(--c-paper);
  border-bottom: 1px solid var(--line-dark);
  overflow: hidden;
}

.page-home .dl-plot {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  pointer-events: none;
}

.page-home .dl-inner {
  position: relative;
  z-index: 1;
  padding: 52px 0;
}

.page-home .dl-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-home .dl-copy {
  min-width: 0;
}

.page-home .dl-lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-lake-soft);
}

.page-home .dl-cta {
  margin: 26px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .dl-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-dark);
  align-self: end;
}

.page-home .dl-stat {
  padding: 18px 12px 6px 0;
  border-right: 1px solid var(--line-dark-soft);
}

.page-home .dl-stat:last-child {
  border-right: 0;
  padding-right: 0;
}

.page-home .dl-stat b {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(19px, 3.4vw, 30px);
  line-height: 1.1;
  color: var(--c-mustard);
  letter-spacing: -0.01em;
}

.page-home .dl-stat span {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--c-lake-soft);
}

/* ============ 回访通道 ============ */
.page-home .revisit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-home .route-list {
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
}

.page-home .route-list li {
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
}

.page-home .route-list li:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-home .route-list h3 {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--c-clay);
  font-size: 16.5px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--c-ink);
}

.page-home .route-list p {
  margin: 9px 0 0;
  padding-left: 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--c-ink);
}

.page-home .revisit-figure {
  margin: 0;
  min-width: 0;
}

.page-home .revisit-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-soft);
  background: var(--wash);
}

.page-home .revisit-figure figcaption {
  margin-top: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--c-moss);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-stone);
}

/* ============ 问答 ============ */
.page-home .qa-list {
  max-width: 760px;
}

.page-home .qa-item {
  border-top: 1px solid var(--line-soft);
}

.page-home .qa-item:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-home .qa-item > summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 17px 42px 17px 16px;
  border-left: 3px solid var(--c-moss);
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-ink);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

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

.page-home .qa-item > summary::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--c-lake);
}

.page-home .qa-item > summary:hover {
  background: var(--wash);
}

.page-home .qa-item[open] > summary {
  border-left-color: var(--c-signal);
  background: var(--wash);
}

.page-home .qa-item[open] > summary::after {
  content: "–";
  color: var(--c-signal);
}

.page-home .qa-item > summary:focus-visible {
  outline: 2px solid var(--c-signal);
  outline-offset: -2px;
}

.page-home .qa-answer {
  margin: 0;
  padding: 0 22px 20px 19px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--c-ink);
}

/* ============ 联系 ============ */
.page-home .contact-band {
  background: var(--c-ink);
  color: var(--c-paper);
}

.page-home .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 52px 0 56px;
}

.page-home .contact-lede {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-lake-soft);
}

.page-home .contact-cta {
  margin: 26px 0 0;
}

.page-home .contact-list {
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
  border-top: 1px solid var(--line-dark);
}

.page-home .contact-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-dark-soft);
}

.page-home .contact-list .k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-stone);
}

.page-home .contact-list .v {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-paper);
  word-break: break-word;
}

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

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

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-home .ph-wrap {
    padding: 0 32px;
  }

  .page-home .hero-lead,
  .page-home .hero-matrix {
    padding-left: 32px;
    padding-right: 32px;
  }

  .page-home .level-row {
    grid-template-columns: 60px minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 22px;
    align-items: start;
  }

  .page-home .level-body {
    margin-top: 2px;
  }

  .page-home .contact-list li {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-home .band {
    padding: 76px 0;
  }

  .page-home .band-head {
    grid-template-columns: minmax(0, 190px) minmax(0, 1fr);
    gap: 32px;
    align-items: end;
    margin-bottom: 40px;
  }

  .page-home .band-title {
    grid-column: 2;
  }

  .page-home .dl-inner,
  .page-home .contact-grid {
    padding: 76px 0;
  }

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

@media (min-width: 1000px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(280px, 350px) minmax(0, 1fr);
  }

  .page-home .hero-lead {
    padding: 56px 36px 56px 32px;
    border-bottom: 0;
    border-right: 1px solid var(--line-dark);
  }

  .page-home .hero-matrix {
    padding: 48px 32px 56px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-home .matrix-hint {
    margin-top: 12px;
  }

  .page-home .levels-grid {
    grid-template-columns: minmax(0, 400px) minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-home .levels-figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-home .dl-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 430px);
    gap: 64px;
    align-items: end;
  }

  .page-home .revisit-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 430px);
    gap: 64px;
    align-items: start;
  }
}

@media (min-width: 1240px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(300px, 380px) minmax(0, 1fr);
  }

  .page-home .hero h1 {
    font-size: 62px;
  }
}
<<<END>>>