.page-home {
  --home-row: clamp(48px, 6.5vw, 88px);
  --home-edge: clamp(20px, 5vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-deep);
  padding: calc(var(--header-space) + clamp(20px, 5vw, 52px)) 0 clamp(40px, 5vw, 72px);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(to right, var(--grid-line) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(to bottom, var(--grid-line) 0 1px, transparent 1px 32px);
  opacity: .55;
}

@media (min-width: 900px) {
  .page-home .home-hero {
    background: linear-gradient(106deg, var(--ink-deep) 0 51.5%, var(--paper) 51.5% 100%);
  }
}

.page-home .home-hero-atmos {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-home .home-hero-atmos img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .2;
  filter: grayscale(.4) contrast(1.05);
}

@media (min-width: 900px) {
  .page-home .home-hero-atmos {
    right: 49%;
    inset: 0 49% 0 0;
  }
}

.page-home .home-hero-shell {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.4vw, 36px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-home .home-hero-shell {
    grid-template-columns: minmax(0, 45fr) minmax(0, 55fr);
    gap: clamp(24px, 3.6vw, 52px);
  }
}

.page-home .home-hero-lead {
  min-width: 0;
  align-self: center;
  padding-block: clamp(4px, 1.6vw, 18px);
}

.page-home .home-hero-lead .eyebrow {
  color: var(--amber);
}

.page-home .home-hero-lead h1 {
  margin: 14px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(30px, 4.6vw, var(--fs-48));
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-home .home-hero-lede {
  margin: 18px 0 0;
  max-width: 32em;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-read);
  color: var(--text-on-dark);
}

/* 首屏第一栏：费用说明 */
.page-home .home-cost {
  min-width: 0;
  background: var(--paper);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-brutal);
  padding: clamp(18px, 2.6vw, 30px);
  color: var(--text-ink);
}

.page-home .home-cost-eyebrow {
  margin: 0;
}

.page-home .home-cost-zero {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-48);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink-deep);
}

.page-home .home-cost-zero-label {
  margin: 6px 0 0;
  font-family: var(--font-heading);
  font-size: var(--fs-14);
  letter-spacing: .06em;
  color: var(--slate);
}

.page-home .home-cost-lede {
  margin: 14px 0 0;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-read);
  color: var(--text-ink);
}

.page-home .home-cost-scope {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hair);
}

.page-home .home-cost-scope li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--hair-soft);
  font-size: var(--fs-14);
  line-height: var(--lh-base);
  color: var(--text-muted);
}

.page-home .home-cost-scope li strong {
  flex: 0 0 auto;
  font-family: var(--font-heading);
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--teal);
}

.page-home .home-cost-scope li:last-child strong {
  color: var(--signal);
}

.page-home .home-cost-more {
  margin-top: 16px;
  border: 1px solid var(--hair);
  background: var(--paper-warm);
}

.page-home .home-cost-more > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 14px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--ink-mid);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .home-cost-more > summary::-webkit-details-marker {
  display: none;
}

.page-home .home-cost-more > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: var(--fs-16);
  line-height: 1;
  color: var(--signal);
}

.page-home .home-cost-more[open] > summary::after {
  content: "\2212";
}

.page-home .home-cost-more > summary:hover {
  background: var(--ink-mid);
  color: var(--paper);
}

.page-home .home-cost-more[open] {
  border-color: var(--line-strong);
  border-width: 2px;
}

.page-home .home-cost-answers {
  padding: 4px 14px 14px;
}

.page-home .home-cost-qa + .home-cost-qa {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--hair-soft);
}

.page-home .home-cost-q {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--ink-deep);
}

.page-home .home-cost-a {
  margin: 6px 0 0;
  font-family: var(--font-body);
  font-size: var(--fs-14);
  line-height: var(--lh-read);
  color: var(--text-ink);
}

/* ---------- 方案与费用总览 ---------- */
.page-home .home-plans {
  background: var(--paper);
  padding: var(--home-row) 0;
  border-bottom: 1px solid var(--hair-soft);
}

.page-home .home-plans-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(24px, 3.4vw, var(--fs-34));
  line-height: 1.28;
  letter-spacing: -.015em;
  color: var(--ink-deep);
  max-width: 20em;
}

.page-home .home-plans-lede {
  margin: 14px 0 0;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-read);
  color: var(--text-muted);
}

.page-home .home-plans-grid {
  margin-top: clamp(26px, 3.6vw, 44px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 44px);
  align-items: start;
}

@media (min-width: 940px) {
  .page-home .home-plans-grid {
    grid-template-columns: minmax(0, 66fr) minmax(0, 34fr);
  }
}

.page-home .home-table-scroll {
  min-width: 0;
  overflow-x: auto;
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-soft);
  background: var(--paper);
}

.page-home .home-plans-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
}

.page-home .home-plans-table caption {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-heading);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--slate);
  background: var(--paper-warm);
  border-bottom: 1px solid var(--hair);
}

.page-home .home-plans-table th,
.page-home .home-plans-table td {
  padding: 13px 14px;
  text-align: left;
  font-size: var(--fs-14);
  line-height: var(--lh-base);
  vertical-align: top;
  border-bottom: 1px solid var(--hair-soft);
}

.page-home .home-plans-table thead th {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--paper);
  background: var(--ink-deep);
  border-bottom-color: var(--ink-deep);
}

.page-home .home-plans-table tbody tr:nth-child(even) {
  background: var(--paper-warm);
}

.page-home .home-plans-table tbody tr:hover {
  background: rgba(217, 162, 39, .12);
}

.page-home .home-plans-table td.num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .02em;
  color: var(--ink-mid);
  white-space: nowrap;
}

.page-home .home-plans-side {
  min-width: 0;
}

.page-home .home-plans-media {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--line-strong);
  background: var(--ink-mid);
}

.page-home .home-plans-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
}

.page-home .home-plans-note {
  margin: 16px 0 0;
  font-family: var(--font-body);
  font-size: var(--fs-14);
  line-height: var(--lh-read);
  color: var(--text-muted);
}

.page-home .home-plans-side .btn {
  margin-top: 18px;
}

/* ---------- 版本坐标 ---------- */
.page-home .home-version {
  background: var(--ink-deep);
  color: var(--text-on-dark);
  padding: var(--home-row) 0;
}

.page-home .home-version .eyebrow {
  color: var(--amber);
}

.page-home .home-version-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 48px);
  align-items: start;
}

@media (min-width: 940px) {
  .page-home .home-version-grid {
    grid-template-columns: minmax(0, 40fr) minmax(0, 60fr);
  }
}

.page-home .home-version-copy h2 {
  margin: 12px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(24px, 3.4vw, var(--fs-34));
  line-height: 1.3;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-home .home-version-copy p {
  margin: 14px 0 0;
  max-width: 34em;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-read);
  color: var(--text-on-dark);
}

.page-home .home-version-stamp {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--amber) !important;
}

.page-home .home-version-media {
  margin-top: 22px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--blueprint);
}

.page-home .home-version-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  opacity: .78;
}

.page-home .home-version-tabs {
  min-width: 0;
}

.page-home .home-rail {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  padding: 0 0 0 0;
  border-top: 2px solid var(--blueprint);
}

.page-home .home-node {
  position: relative;
  flex: 1 1 0;
  min-width: 96px;
  padding: 22px 10px 14px;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--hair-soft);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: .04em;
  color: var(--text-on-dark-dim);
  text-align: left;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-home .home-node:last-child {
  border-right: 0;
}

.page-home .home-node::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 10px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--blueprint);
  background: var(--ink-deep);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .home-node::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 22px;
  width: 0;
  height: 2px;
  background: var(--amber);
  transition: width var(--dur) var(--ease);
}

.page-home .home-node:hover {
  color: var(--paper);
}

.page-home .home-node:hover::after {
  width: 24px;
}

.page-home .home-node[aria-selected="true"] {
  color: var(--amber);
  background: rgba(217, 162, 39, .08);
}

.page-home .home-node[aria-selected="true"]::before {
  background: var(--amber);
  border-color: var(--amber);
  transform: scale(1.15);
}

.page-home .home-node[aria-selected="true"]::after {
  width: 40px;
  background: var(--signal);
}

.page-home .home-version-panels {
  margin-top: 22px;
}

.page-home .home-version-panel {
  border: 1px solid var(--blueprint);
  border-left: 3px solid var(--amber);
  background: var(--ink-mid);
  padding: clamp(18px, 2.4vw, 28px);
}

.page-home .home-version-panel h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--fs-20);
  line-height: 1.4;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-home .home-version-panel h3 .num {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--amber);
}

.page-home .home-version-panel p {
  margin: 12px 0 0;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-read);
  color: var(--text-on-dark);
}

/* ---------- 案例合集 ---------- */
.page-home .home-cases {
  background: var(--paper-warm);
  padding: var(--home-row) 0;
  overflow: hidden;
}

.page-home .home-cases-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(24px, 3.4vw, var(--fs-34));
  line-height: 1.28;
  letter-spacing: -.015em;
  color: var(--ink-deep);
}

.page-home .home-cases-head p {
  margin: 14px 0 0;
  max-width: 42em;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-read);
  color: var(--text-muted);
}

.page-home .home-cases-banner {
  margin-top: clamp(24px, 3.4vw, 40px);
  border-block: 2px solid var(--line-strong);
  overflow: hidden;
  background: var(--ink-mid);
}

.page-home .home-cases-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  filter: saturate(.9);
}

.page-home .home-cases-scroller {
  margin-top: clamp(26px, 3.6vw, 44px);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  padding-bottom: 14px;
}

.page-home .home-cases-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(258px, 78vw);
  gap: 16px;
  padding-inline: max(var(--home-edge), calc((100vw - var(--shell)) / 2));
}

@media (min-width: 760px) {
  .page-home .home-cases-track {
    grid-auto-columns: minmax(0, 330px);
    gap: 22px;
  }
}

.page-home .home-case {
  scroll-snap-align: start;
  min-width: 0;
  background: var(--paper);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-soft);
  padding: clamp(18px, 2.4vw, 26px);
  display: flex;
  flex-direction: column;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .home-case:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-brutal);
}

.page-home .home-case-vol {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.page-home .home-case h3 {
  margin: 12px 0 0;
  font-family: var(--font-heading);
  font-size: var(--fs-20);
  line-height: 1.36;
  letter-spacing: -.01em;
  color: var(--ink-deep);
}

.page-home .home-case p {
  margin: 10px 0 0;
  font-family: var(--font-body);
  font-size: var(--fs-14);
  line-height: var(--lh-read);
  color: var(--text-muted);
}

.page-home .home-case-meta {
  padding-top: 10px;
  border-top: 1px solid var(--hair-soft);
  font-family: var(--font-heading);
  font-size: var(--fs-12);
  letter-spacing: .03em;
  color: var(--slate) !important;
}

.page-home .home-case-link {
  margin-top: 16px;
  align-self: flex-start;
  font-family: var(--font-heading);
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--ink-mid);
  text-decoration: none;
  border-bottom: 2px solid var(--amber);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .home-case-link:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-home .home-case-vol1 {
  border-top: 6px solid var(--amber);
}

.page-home .home-case-vol2 {
  border-top: 6px solid var(--teal);
}

.page-home .home-case-vol3 {
  border-top: 6px solid var(--signal);
}

@media (min-width: 760px) {
  .page-home .home-case:nth-child(2) {
    margin-top: 26px;
  }

  .page-home .home-case:nth-child(3) {
    margin-top: 52px;
  }
}

/* ---------- 资料下载 ---------- */
.page-home .home-downloads {
  background: var(--paper);
  padding: var(--home-row) 0;
}

.page-home .home-downloads-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.6vw, 52px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-home .home-downloads-grid {
    grid-template-columns: minmax(0, 38fr) minmax(0, 62fr);
  }
}

.page-home .home-downloads-intro h2 {
  margin: 12px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(24px, 3.4vw, var(--fs-34));
  line-height: 1.28;
  letter-spacing: -.015em;
  color: var(--ink-deep);
}

.page-home .home-downloads-intro > p {
  margin: 14px 0 0;
  max-width: 30em;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-read);
  color: var(--text-muted);
}

.page-home .home-downloads-intro .btn {
  margin-top: 20px;
}

.page-home .home-downloads-foot {
  font-size: var(--fs-14) !important;
}

.page-home .home-downloads-foot a {
  color: var(--ink-mid);
  text-decoration: none;
  border-bottom: 2px solid var(--amber);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .home-downloads-foot a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-home .home-dl-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--line-strong);
}

.page-home .home-dl-list li {
  position: relative;
  padding: 20px 0 20px 52px;
  border-bottom: 1px solid var(--hair-soft);
}

.page-home .home-dl-list li::before {
  counter-increment: home-dl;
  content: counter(home-dl, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 22px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--amber);
}

.page-home .home-dl-list {
  counter-reset: home-dl;
}

.page-home .home-dl-list h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--fs-20);
  line-height: 1.36;
  letter-spacing: -.01em;
  color: var(--ink-deep);
}

.page-home .home-dl-list p {
  margin: 8px 0 0;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: var(--fs-14);
  line-height: var(--lh-read);
  color: var(--text-muted);
}

/* ---------- 回访路径 ---------- */
.page-home .home-return {
  background: var(--ink-mid);
  color: var(--text-on-dark);
  padding: var(--home-row) 0;
}

.page-home .home-return .eyebrow {
  color: var(--amber);
}

.page-home .home-return-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(24px, 3.4vw, var(--fs-34));
  line-height: 1.28;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-home .home-return-head p {
  margin: 14px 0 0;
  max-width: 42em;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-read);
  color: var(--text-on-dark);
}

.page-home .home-return-steps {
  margin: clamp(26px, 3.6vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--blueprint);
  border: 1px solid var(--blueprint);
}

@media (min-width: 760px) {
  .page-home .home-return-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .home-return-steps li {
  min-width: 0;
  background: var(--ink-deep);
  padding: clamp(20px, 2.6vw, 30px);
  transition: background-color var(--dur) var(--ease);
}

.page-home .home-return-steps li:hover {
  background: var(--ink-mid);
}

.page-home .home-return-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-34);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--blueprint);
  transition: color var(--dur) var(--ease);
}

.page-home .home-return-steps li:hover .home-return-index {
  color: var(--amber);
}

.page-home .home-return-steps h3 {
  margin: 16px 0 0;
  font-family: var(--font-heading);
  font-size: var(--fs-20);
  line-height: 1.36;
  letter-spacing: -.01em;
}

.page-home .home-return-steps h3 a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .home-return-steps h3 a:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-home .home-return-steps p {
  margin: 10px 0 0;
  font-family: var(--font-body);
  font-size: var(--fs-14);
  line-height: var(--lh-read);
  color: var(--text-on-dark-dim);
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-case,
  .page-home .home-node,
  .page-home .home-node::before,
  .page-home .home-node::after,
  .page-home .home-return-steps li,
  .page-home .home-return-index,
  .page-home .home-return-steps h3 a,
  .page-home .home-case-link,
  .page-home .home-cost-more > summary {
    transition: none;
  }

  .page-home .home-case:hover {
    transform: none;
  }
}