.page-home {
  display: block;
  position: relative;
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  padding: 36px 0 0;
}

.page-home .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

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

.page-home .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-home .hero-kicker::before {
  content: "";
  display: block;
  width: 24px;
  height: 1px;
  background: var(--cyan);
}

.page-home .hero h1 {
  margin: 16px 0 0;
  font-size: clamp(32px, 8.4vw, 56px);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.025em;
  color: var(--text);
}

.page-home .br-wide {
  display: none;
}

.page-home .hero-lede {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

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

.page-home .hero-cta .btn {
  text-decoration: none;
}

.page-home .hero-media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-card);
  overflow: hidden;
}

.page-home .hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(56, 225, 200, 0.14), transparent 46%);
  pointer-events: none;
}

.page-home .hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

/* ---------- 章节预览 ---------- */
.page-home .chapter-preview {
  margin-top: 40px;
}

.page-home .chapter-preview ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-home .chapter-preview a {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 14px 13px;
  border: 1px solid var(--line);
  background: var(--ink-card);
  color: var(--text);
  text-decoration: none;
  transition: transform 0.26s ease, border-color 0.26s ease, background-color 0.26s ease;
}

.page-home .chapter-preview a:hover,
.page-home .chapter-preview a:focus-visible {
  transform: translateY(-4px);
  border-color: var(--cyan);
  background: var(--ink-lift);
}

.page-home .cp-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-home .cp-text {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- 更新条带 ---------- */
.page-home .strip {
  margin-top: 44px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(56, 225, 200, 0.07), transparent 46%);
}

.page-home .strip-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.page-home .strip-lead {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-home .strip-lead::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
}

.page-home .strip-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 14px, #000 calc(100% - 14px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 14px, #000 calc(100% - 14px), transparent 100%);
}

.page-home .strip-list::-webkit-scrollbar {
  display: none;
}

.page-home .strip-list li {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 14px 9px 10px;
  border: 1px solid var(--line);
  background: var(--ink-card);
  font-size: 13.5px;
  color: var(--muted);
  white-space: nowrap;
}

/* ---------- 章节通用 ---------- */
.page-home .chapter {
  position: relative;
  padding: 52px 0 60px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-home .chapter + .chapter {
  border-top: 1px solid var(--line);
}

.page-home .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin: 0 0 24px;
}

.page-home .section-index {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--cyan);
  text-shadow: 0 0 22px rgba(56, 225, 200, 0.35);
}

.page-home .section-title {
  margin: 0;
  font-size: 23px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-home .section-note {
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-home .chapter-lede {
  margin: 0 0 26px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .chapter-tail {
  margin: 26px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  padding-left: 16px;
  border-left: 2px solid var(--cyan-dim);
}

.page-home .section-cta {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 28px;
  padding-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
  transition: color 0.22s ease, border-color 0.22s ease;
}

.page-home .section-cta::after {
  content: "→";
  transition: transform 0.22s ease;
}

.page-home .section-cta:hover,
.page-home .section-cta:focus-visible {
  color: var(--gold);
  border-color: var(--gold);
}

.page-home .section-cta:hover::after {
  transform: translateX(4px);
}

/* ---------- 01 数字 ---------- */
.page-home .stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-home .stat {
  background: var(--ink-card);
  padding: 18px 16px 20px;
  min-width: 0;
}

.page-home .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-home .stat-num small {
  margin-left: 4px;
  font-size: 12.5px;
  font-weight: 400;
  color: var(--muted);
}

.page-home .stat-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 02 四条主线 ---------- */
.page-home .lanes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .lane-media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-card);
  overflow: hidden;
}

.page-home .lane-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-home .lane {
  padding: 22px 20px 24px;
  min-width: 0;
}

.page-home .lane h3 {
  margin: 12px 0 0;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--text);
}

.page-home .lane p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .lane-hint {
  font-size: 12.5px !important;
  color: var(--gold) !important;
  letter-spacing: 0.02em;
}

.page-home .lane-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
  padding-bottom: 3px;
  transition: color 0.22s ease, border-color 0.22s ease;
}

.page-home .lane-link::after {
  content: "→";
}

.page-home .lane-link:hover,
.page-home .lane-link:focus-visible {
  color: var(--gold);
  border-color: var(--gold);
}

.page-home .code-map {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  margin-top: 18px;
}

.page-home .cm-box rect {
  fill: rgba(56, 225, 200, 0.05);
  stroke: var(--line);
  stroke-width: 1.5;
}

.page-home .cm-val text {
  fill: var(--gold);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
}

.page-home .cm-plus text {
  fill: var(--cyan-dim);
  font-family: var(--font-mono);
  font-size: 18px;
}

.page-home .cm-tag text {
  fill: var(--muted);
  font-family: var(--font-sans);
  font-size: 13px;
}

.page-home .lane-start-body {
  min-width: 0;
}

/* ---------- 03 三步 ---------- */
.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  counter-reset: none;
}

.page-home .step {
  position: relative;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan-dim);
  background: var(--ink-card);
  transition: transform 0.26s ease, border-color 0.26s ease, background-color 0.26s ease;
}

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

.page-home .step:last-child {
  border-top-color: var(--gold);
}

.page-home .step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-home .step:last-child .step-num {
  color: var(--gold);
}

.page-home .step h3 {
  margin: 12px 0 0;
  font-size: 19px;
  font-weight: 800;
  color: var(--text);
}

.page-home .step p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .step-hint {
  padding-left: 13px;
  border-left: 2px solid var(--line);
  font-size: 13px !important;
  color: var(--gold-soft) !important;
}

.page-home .install-foot {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 30px;
}

.page-home .install-media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-card);
  overflow: hidden;
}

.page-home .install-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .install-links p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .install-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-home .install-cta .btn {
  text-decoration: none;
}

/* ---------- 04 更新 ---------- */
.page-home .cadence {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-home .cadence-item {
  background: var(--ink-card);
  padding: 18px 18px 20px;
  min-width: 0;
}

.page-home .cadence-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -0.01em;
}

.page-home .cadence-item p {
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .notice-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-home .notice-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 16px;
  border: 1px solid var(--line);
  background: var(--ink-card);
  min-width: 0;
}

.page-home .notice-list li > div {
  min-width: 0;
}

.page-home .notice-list .tag {
  flex: 0 0 auto;
  margin-top: 2px;
}

.page-home .notice-list h3 {
  margin: 0;
  font-size: 16.5px;
  font-weight: 800;
  line-height: 1.45;
  color: var(--text);
}

.page-home .notice-list p {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 05 明细 ---------- */
.page-home .detail-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

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

.page-home .detail-modes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-home .mode {
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  background: var(--ink-card);
  min-width: 0;
}

.page-home .mode-tag {
  display: inline-block;
  padding: 3px 9px;
  border: 1px solid var(--cyan-dim);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-home .mode h3 {
  margin: 12px 0 0;
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
}

.page-home .mode p {
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .detail-figure {
  margin: 0;
  position: relative;
  opacity: 0.55;
}

.page-home .detail-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(0.85);
}

/* ---------- 06 服务 ---------- */
.page-home .service-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-home .service-card {
  background: var(--ink-card);
  padding: 18px 16px 20px;
  min-width: 0;
}

.page-home .service-key {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-home .service-val {
  margin: 9px 0 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
  word-break: break-word;
}

.page-home .service-note {
  margin: 7px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 560px) {
  .page-home .chapter-preview ol {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .stat-row,
  .page-home .cadence,
  .page-home .detail-modes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 840px) {
  .page-home .hero {
    padding-top: 56px;
  }

  .page-home .hero-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 52px;
  }

  .page-home .br-wide {
    display: inline;
  }

  .page-home .hero-media {
    transform: translateY(-12px);
  }

  .page-home .chapter-preview ol {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-home .chapter-preview a {
    min-height: 104px;
    padding: 16px 13px;
  }

  .page-home .strip-inner {
    flex-direction: row;
    align-items: center;
    gap: 20px;
  }

  .page-home .strip-lead {
    flex: 0 0 auto;
  }

  .page-home .strip-list {
    flex: 1 1 auto;
    min-width: 0;
  }

  .page-home .section-head {
    flex-wrap: nowrap;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 28px;
  }

  .page-home .section-index {
    font-size: 52px;
  }

  .page-home .section-title {
    font-size: 27px;
    padding-top: 10px;
  }

  .page-home .section-note {
    display: block;
    flex: 0 0 auto;
    margin-left: auto;
    writing-mode: vertical-rl;
    height: 84px;
    letter-spacing: 0.2em;
  }

  .page-home .chapter {
    padding: 62px 0 70px;
  }

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

  .page-home .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-home .install-foot {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 36px;
    align-items: center;
  }

  .page-home .detail-shell {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.68fr);
    gap: 48px;
  }

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

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

  .page-home .service-card-wide {
    grid-column: span 2;
  }
}

@media (min-width: 960px) {
  .page-home .lanes {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 16px;
  }

  .page-home .lane-media {
    grid-column: 1 / 6;
    align-self: stretch;
  }

  .page-home .lane-media img {
    min-height: 100%;
    aspect-ratio: auto;
  }

  .page-home .lane-nav {
    grid-column: 6 / 13;
    padding: 26px 26px 28px;
  }

  .page-home .lane-record {
    grid-column: 1 / 7;
  }

  .page-home .lane-detail {
    grid-column: 7 / 13;
  }

  .page-home .lane-start {
    grid-column: 1 / 13;
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: center;
    gap: 28px;
    padding: 26px 26px 28px;
  }

  .page-home .lane-start-link {
    justify-self: end;
    margin-top: 0;
    white-space: nowrap;
  }
}

@media (min-width: 1120px) {
  .page-home .lane-record {
    grid-column: 1 / 8;
  }

  .page-home .lane-detail {
    grid-column: 8 / 13;
  }

  .page-home .lane-nav {
    grid-column: 6 / 13;
  }

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

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