.page-home {
  --home-pad: clamp(56px, 8vw, 112px);
  --home-gap: clamp(22px, 3vw, 40px);
  background: var(--ink-900);
  color: var(--text);
  overflow-x: clip;
}

.page-home .crumbs {
  padding-top: clamp(18px, 2.6vw, 34px);
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  position: relative;
  padding: clamp(26px, 4vw, 52px) 0 clamp(42px, 6vw, 86px);
}

.page-home .hero::before {
  content: "00";
  position: absolute;
  top: -6%;
  left: -2%;
  font-family: var(--font-sans);
  font-size: clamp(180px, 26vw, 380px);
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--cyan);
  opacity: 0.06;
  pointer-events: none;
  z-index: 0;
}

.page-home .hero-wrap {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
  align-items: start;
}

@media (min-width: 1000px) {
  .page-home .hero-wrap {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(30px, 4vw, 60px);
  }
}

.page-home .hero-title {
  margin: 14px 0 0;
  font-size: clamp(34px, 5vw, 60px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: #ffffff;
  max-width: 15em;
}

.page-home .hero-lede {
  margin-top: clamp(16px, 2vw, 26px);
  max-width: 34em;
  color: var(--text);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-home .hero-index {
  list-style: none;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-home .hero-index li {
  border-bottom: 1px solid var(--line-soft);
}

.page-home .hero-index a {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 14px 2px;
  color: var(--text);
  text-decoration: none;
  transition: color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-home .hero-index a:hover,
.page-home .hero-index a:focus-visible {
  color: var(--cyan);
  transform: translateX(4px);
}

.page-home .hero-index .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-home .hero-art {
  margin: 0;
  position: relative;
}

.page-home .hero-shot {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-home .hero-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-home .hero-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(205deg, rgba(0, 229, 212, 0.18) 0%, rgba(7, 11, 20, 0) 44%, rgba(255, 122, 26, 0.14) 100%);
  pointer-events: none;
}

.page-home .art-note {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- 章节外壳 ---------- */

.page-home .band {
  position: relative;
  padding: var(--home-pad) 0;
}

.page-home .band-panel {
  background: var(--ink-700);
}

.page-home .band-dark {
  background: var(--ink-900);
}

.page-home .band-deep {
  background: var(--ink-800);
}

.page-home .chapter-head {
  position: relative;
  margin-bottom: clamp(28px, 4vw, 52px);
  max-width: 62ch;
}

.page-home .chapter-title {
  margin: 6px 0 0;
  font-size: clamp(26px, 3.4vw, 42px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: #ffffff;
}

.page-home .chapter-note {
  margin: 16px 0 0;
  max-width: 52ch;
  color: var(--muted);
  line-height: 1.8;
}

/* ---------- 01 三步路径 ---------- */

.page-home .steps {
  position: relative;
}

.page-home .step-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

.page-home .step-rail {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

@media (min-width: 760px) {
  .page-home .step-rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

.page-home .step-tab {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(14, 21, 36, 0.72);
  cursor: pointer;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-home .step-tab:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
}

.page-home .step-node {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-home .step-text {
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
}

.page-home .step-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-home #route-step-1:checked ~ .step-rail .step-tab:nth-child(1),
.page-home #route-step-2:checked ~ .step-rail .step-tab:nth-child(2),
.page-home #route-step-3:checked ~ .step-rail .step-tab:nth-child(3) {
  border-color: var(--cyan);
  background: rgba(0, 229, 212, 0.08);
}

.page-home #route-step-1:checked ~ .step-rail .step-tab:nth-child(1) .step-node,
.page-home #route-step-2:checked ~ .step-rail .step-tab:nth-child(2) .step-node,
.page-home #route-step-3:checked ~ .step-rail .step-tab:nth-child(3) .step-node {
  color: var(--cyan);
}

.page-home #route-step-1:focus-visible ~ .step-rail .step-tab:nth-child(1),
.page-home #route-step-2:focus-visible ~ .step-rail .step-tab:nth-child(2),
.page-home #route-step-3:focus-visible ~ .step-rail .step-tab:nth-child(3) {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

@keyframes home-panel-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-home .step-panels {
  margin-top: clamp(22px, 3vw, 34px);
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line);
}

.page-home .step-panel {
  display: none;
}

.page-home #route-step-1:checked ~ .step-panels > .step-panel:nth-child(1),
.page-home #route-step-2:checked ~ .step-panels > .step-panel:nth-child(2),
.page-home #route-step-3:checked ~ .step-panels > .step-panel:nth-child(3) {
  display: block;
  animation: home-panel-in 260ms var(--ease) both;
}

.page-home .step-title {
  margin: 0 0 12px;
  font-size: var(--fs-22);
  font-weight: 700;
  color: #ffffff;
}

.page-home .step-body {
  margin: 0 0 16px;
  max-width: 60ch;
  line-height: 1.78;
  color: var(--text);
}

.page-home .step-aside {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

/* ---------- 02 关注栏 ---------- */

.page-home .follow-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
  align-items: start;
}

@media (min-width: 960px) {
  .page-home .follow-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

.page-home .follow-lede {
  margin: 0 0 clamp(20px, 2.6vw, 30px);
  max-width: 60ch;
  line-height: 1.78;
  color: var(--text);
}

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

.page-home .follow-points li {
  position: relative;
  padding-left: 18px;
  line-height: 1.75;
  color: var(--text);
}

.page-home .follow-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-home .follow-points strong {
  color: #ffffff;
  font-weight: 700;
}

.page-home .scoreboard {
  margin-top: clamp(24px, 3vw, 36px);
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(0, 229, 212, 0.07), rgba(255, 122, 26, 0.06));
}

.page-home .board-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-home .board-rows {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-home .board-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--line);
}

.page-home .board-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-home .board-row dt {
  font-size: 14px;
  color: var(--muted);
}

.page-home .board-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 20px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-home .follow-art {
  margin: 0;
}

.page-home .follow-art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}

/* ---------- 03 导航 ---------- */

.page-home .nav-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
  align-items: start;
}

@media (min-width: 960px) {
  .page-home .nav-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

.page-home .nav-art {
  margin: 0;
}

.page-home .nav-art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}

.page-home .nav-lede {
  margin: 0 0 clamp(20px, 2.6vw, 30px);
  max-width: 58ch;
  line-height: 1.78;
  color: var(--text);
}

.page-home .nav-six {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-home .nav-entry a {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 13px 14px 13px 12px;
  border-left: 2px solid var(--line);
  color: var(--text);
  text-decoration: none;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-home .nav-entry a:hover,
.page-home .nav-entry a:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(0, 229, 212, 0.06);
  transform: translateX(4px);
}

.page-home .nav-entry .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-home .nav-entry-label {
  display: block;
  font-weight: 700;
  color: #ffffff;
}

.page-home .nav-entry-desc {
  display: block;
  margin-top: 3px;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- 04 场景 ---------- */

.page-home .scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 28px);
  align-items: start;
}

@media (min-width: 880px) {
  .page-home .scene-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .scene-a {
    grid-column: 1 / 5;
  }

  .page-home .scene-b {
    grid-column: 5 / 9;
    margin-top: 28px;
  }

  .page-home .scene-c {
    grid-column: 9 / 13;
    margin-top: 56px;
  }
}

.page-home .scene-card {
  padding: clamp(20px, 2.4vw, 30px);
}

.page-home .scene-tag {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-home .scene-card h3 {
  margin: 0 0 14px;
  font-size: var(--fs-22);
  font-weight: 700;
  line-height: 1.3;
  color: #ffffff;
}

.page-home .scene-card p {
  margin: 0;
  line-height: 1.75;
  color: var(--text);
}

.page-home .scene-card p + p {
  margin-top: 12px;
}

.page-home .scene-meta {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 05 更新入口 ---------- */

.page-home .updates-art {
  margin: 0 0 clamp(24px, 3vw, 38px);
}

.page-home .updates-art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}

.page-home .updates-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 26px);
}

@media (min-width: 800px) {
  .page-home .updates-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-home .update-card {
  display: block;
  padding: clamp(22px, 2.6vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-800);
  color: var(--text);
  text-decoration: none;
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-home .update-card:hover,
.page-home .update-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--cyan);
}

.page-home .update-card h3 {
  margin: 12px 0 14px;
  font-size: var(--fs-22);
  font-weight: 700;
  line-height: 1.3;
  color: #ffffff;
}

.page-home .update-text {
  margin: 0;
  line-height: 1.75;
  color: var(--text);
}

.page-home .update-more {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 06 服务与联系 ---------- */

.page-home .reach-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
  align-items: start;
}

@media (min-width: 900px) {
  .page-home .reach-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

.page-home .reach-lede {
  margin: 0 0 clamp(20px, 2.6vw, 28px);
  max-width: 58ch;
  line-height: 1.78;
  color: var(--text);
}

.page-home .reach-list {
  list-style: none;
  margin: 0 0 clamp(24px, 3vw, 34px);
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .reach-list li {
  position: relative;
  padding-left: 18px;
  line-height: 1.75;
  color: var(--text);
}

.page-home .reach-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

.page-home .reach-btn {
  display: inline-block;
}

.page-home .reach-card {
  display: grid;
  gap: 20px;
  padding: clamp(22px, 2.6vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, rgba(0, 229, 212, 0.08), rgba(255, 122, 26, 0.06));
}

.page-home .reach-line {
  display: grid;
  gap: 6px;
}

.page-home .reach-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-home .reach-val {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 18px);
  letter-spacing: 0.02em;
  color: #ffffff;
  word-break: break-all;
}

.page-home .reach-val-text {
  font-family: var(--font-sans);
  font-size: 15px;
  word-break: normal;
}

.page-home .reach-note {
  margin: 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .copy-btn {
  justify-self: start;
  margin-top: 2px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease);
}

.page-home .copy-btn:hover,
.page-home .copy-btn:focus-visible {
  border-color: var(--cyan);
  color: #ffffff;
}

/* ---------- 焦点与降级 ---------- */

.page-home a:focus-visible,
.page-home button:focus-visible,
.page-home label:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

@media (max-width: 700px) {
  .page-home .hero-title {
    font-size: clamp(30px, 8vw, 40px);
  }

  .page-home .board-row dd {
    font-size: 18px;
  }

  .page-home .scene-meta {
    font-size: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}