.page-home {
  --ph-rail: 238px;
  --ph-ink: #12212C;
  --ph-ink-soft: #54636F;
  background: var(--abyss);
  color: var(--fog);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(24px, 4.5vw, 54px) 0 clamp(16px, 2.5vw, 26px);
  border-bottom: 1px solid var(--hair);
}
.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(to bottom, rgba(233, 240, 245, .055) 0 1px, transparent 1px 40px);
  pointer-events: none;
}
.page-home .hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
}
.page-home .eyebrow {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-home .hero-title {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--sans);
  font-weight: 300;
  font-size: clamp(32px, 8.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--fog);
}
.page-home .hero-deck {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  max-width: 34ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}
.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-home .hero-status {
  position: relative;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--hair);
  font-size: 11.5px;
  line-height: 1.9;
  letter-spacing: .06em;
  color: var(--dim);
}

/* 预览板 */
.page-home .preview-board {
  display: grid;
  gap: clamp(10px, 1.6vw, 14px);
  min-width: 0;
}
.page-home .preview-shot {
  margin: 0;
  border: 1px solid var(--hair);
}
.page-home .preview-paths {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-home .preview-path {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 11px 14px;
  background: var(--panel);
  border: 1px solid var(--hair);
  transition: border-color .12s ease, transform .12s ease;
}
.page-home .preview-path:hover {
  border-color: var(--line-cyan);
  transform: translateY(-2px);
}
.page-home .pv-title {
  margin: 0 0 3px;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--fog);
}
.page-home .pv-desc {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 路径带 ---------- */
.page-home .ribbon {
  padding: clamp(28px, 4.5vw, 54px) 0;
  border-bottom: 1px solid var(--hair);
}
.page-home .ribbon-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
  align-items: center;
}
.page-home .ribbon-title {
  margin: 6px 0 12px;
  font-family: var(--sans);
  font-weight: 400;
  font-size: clamp(21px, 3.4vw, 32px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--fog);
}
.page-home .ribbon-text {
  margin: 0;
  max-width: 36ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}
.page-home .ribbon-figure {
  margin: 0;
  border: 1px solid var(--hair);
  min-width: 0;
}

/* ---------- 工作区 ---------- */
.page-home .work {
  padding: clamp(32px, 5vw, 68px) 0;
}
.page-home .work-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

/* 左栏 */
.page-home .rail-inner {
  display: grid;
  gap: 18px;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--hair);
  min-width: 0;
}
.page-home .rail-label {
  display: block;
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--dim);
}
.page-home .searchbox {
  min-width: 0;
}
.page-home .rail-input {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 12px;
  background: var(--abyss);
  color: var(--fog);
  border: 1px solid var(--hair);
  border-radius: 0;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  transition: border-color .12s ease, box-shadow .12s ease;
}
.page-home .rail-input::placeholder {
  color: var(--dim);
}
.page-home .rail-input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(51, 224, 198, .14);
}
.page-home .rail-hint {
  margin: 9px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}
.page-home .recent-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 10px 0 0;
  border-top: 1px solid var(--hair);
  display: none;
  gap: 8px;
}
.page-home .searchbox:focus-within .recent-list {
  display: grid;
}
.page-home .recent-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}
.page-home .rail-version .version-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.page-home .rail-cta {
  justify-self: start;
}

/* 右栏画布 */
.page-home .canvas {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  min-width: 0;
}
.page-home .block {
  padding: clamp(20px, 3vw, 34px);
  background: var(--panel);
  border: 1px solid var(--hair);
  min-width: 0;
}
.page-home .block-index {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-home .block-title {
  margin: 0 0 12px;
  font-family: var(--sans);
  font-weight: 400;
  font-size: clamp(20px, 3vw, 29px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--fog);
}
.page-home .block-lead {
  margin: 0;
  max-width: 48ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}
.page-home .block-figure {
  margin: 0 0 clamp(16px, 2.4vw, 22px);
  border: 1px solid var(--hair);
}

/* 骨白对照区块 */
.page-home .block--bone {
  background: var(--bone);
  border-color: var(--bone);
  color: var(--ph-ink);
}
.page-home .block--bone .block-index {
  color: #7A8792;
}
.page-home .block--bone .block-title {
  color: var(--ph-ink);
}
.page-home .block--bone .block-lead {
  color: var(--ph-ink-soft);
}
.page-home .steps {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}
.page-home .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid rgba(6, 16, 25, .13);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ph-ink);
}
.page-home .step:last-child {
  border-bottom: 1px solid rgba(6, 16, 25, .13);
}
.page-home .step p {
  margin: 0;
}
.page-home .step-num {
  padding-top: 3px;
  font-size: 11px;
  letter-spacing: .08em;
  color: #8A959F;
}
.page-home .block--bone .path-code {
  color: #0E5A52;
}
.page-home .block-foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(6, 16, 25, .13);
  font-size: 13px;
  line-height: 1.8;
  color: var(--ph-ink-soft);
}

/* 导出区块 */
.page-home .block-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 30px);
  align-items: start;
}
.page-home .block-split-figure {
  margin: 0;
  border: 1px solid var(--hair);
}
.page-home .format-list {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-home .format-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 12px;
  border: 1px solid var(--hair);
  background: rgba(255, 255, 255, .015);
}
.page-home .format-list p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-home .block-note {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* 记录区块 */
.page-home .record-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}
.page-home .record-list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--hair);
}
.page-home .record-list li:last-child {
  border-bottom: 1px solid var(--hair);
}
.page-home .record-list p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-home .rec-key {
  padding-top: 3px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--amber);
}

/* ---------- 数据区 ---------- */
.page-home .proof {
  padding: clamp(32px, 5vw, 66px) 0;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  background: linear-gradient(180deg, rgba(11, 59, 57, .42) 0%, rgba(6, 16, 25, 0) 100%);
}
.page-home .proof-title {
  margin: 6px 0 12px;
  font-family: var(--sans);
  font-weight: 400;
  font-size: clamp(21px, 3.4vw, 32px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--fog);
}
.page-home .proof-lead {
  margin: 0;
  max-width: 50ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}
.page-home .stat-row {
  margin: clamp(20px, 3vw, 32px) 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}
.page-home .stat-row > div {
  background: var(--abyss);
  padding: 18px 16px;
}
.page-home .stat-row dt {
  margin-bottom: 8px;
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--dim);
}
.page-home .stat-row dd {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--fog);
}
.page-home .proof-foot {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--dim);
}

/* ---------- 联系 ---------- */
.page-home .reach {
  padding: clamp(32px, 5vw, 66px) 0;
}
.page-home .reach-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}
.page-home .reach-title {
  margin: 6px 0 12px;
  font-family: var(--sans);
  font-weight: 400;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--fog);
}
.page-home .reach-text {
  margin: 0 0 12px;
  max-width: 42ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}
.page-home .reach-note {
  margin: 0;
  font-size: 11.5px;
  line-height: 1.85;
  letter-spacing: .04em;
  color: var(--dim);
}
.page-home .reach-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-home .reach-list .contact-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--hair);
}
.page-home .reach-list .contact-row:last-child {
  border-bottom: 1px solid var(--hair);
}
.page-home .reach-list .contact-label {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--dim);
}
.page-home .reach-list .contact-value {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
  word-break: break-word;
}

/* ---------- 下一步 ---------- */
.page-home .next {
  padding: clamp(28px, 4vw, 56px) 0 clamp(40px, 6vw, 84px);
  border-top: 1px solid var(--hair);
}
.page-home .next-title {
  margin: 0;
  font-family: var(--sans);
  font-weight: 400;
  font-size: clamp(18px, 2.6vw, 24px);
  letter-spacing: -.01em;
  color: var(--fog);
}
.page-home .next-list {
  list-style: none;
  margin: clamp(14px, 2.2vw, 22px) 0 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}
.page-home .next-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hair);
  text-decoration: none;
  color: var(--fog);
}
.page-home .next-code {
  grid-row: 1 / span 2;
  padding-top: 4px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--dim);
}
.page-home .next-name {
  font-size: 15.5px;
  line-height: 1.5;
  transition: color .12s ease;
}
.page-home .next-desc {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}
.page-home .next-link:hover .next-name,
.page-home .next-link:focus-visible .next-name {
  color: var(--cyan);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-home .stat-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-home .block-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 232px);
  }
  .page-home .stat-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-home .next-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(16px, 3vw, 44px);
  }
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(24px, 4vw, 56px);
  }
  .page-home .preview-path:nth-child(2) {
    margin-left: 4%;
  }
  .page-home .preview-path:nth-child(3) {
    margin-left: 8%;
  }
  .page-home .preview-path:nth-child(4) {
    margin-left: 12%;
  }
  .page-home .ribbon-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }
  .page-home .reach-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 1000px) {
  .page-home .work-grid {
    grid-template-columns: var(--ph-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }
  .page-home .rail-inner {
    position: sticky;
    top: calc(var(--header-h-sm) + 20px);
    max-height: calc(100vh - var(--header-h-sm) - 40px);
    overflow-y: auto;
  }
  .page-home .canvas .block:nth-child(2) {
    margin-left: clamp(0px, 2.4vw, 38px);
  }
  .page-home .canvas .block:nth-child(3) {
    margin-right: clamp(0px, 2vw, 30px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .preview-path,
  .page-home .next-name,
  .page-home .rail-input {
    transition: none;
  }
  .page-home .preview-path:hover {
    transform: none;
  }
}
<<<END>>>