.page-home {
  --home-line: rgba(46, 90, 90, 0.55);
  --home-line-soft: rgba(138, 151, 163, 0.22);
  --home-accent-deep: #A64A18;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-home :where(h1, h2, h3, p, figure) {
  margin: 0;
}

.page-home .sec-inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 4vw, 44px);
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(20px, 4vw, 48px) var(--gutter) clamp(36px, 6vw, 76px);
}

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

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

.page-home .hero-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
}

.page-home .hero-rail,
.page-home .hero-main {
  position: relative;
  z-index: 1;
}

.page-home .rail-head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--stone);
  margin-bottom: 10px;
}

.page-home .coord-rail {
  list-style: none;
  margin: 0;
  padding: 0 0 10px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  border-bottom: 1px solid var(--home-line);
  scrollbar-width: thin;
}

.page-home .coord-rail__item {
  flex: 0 0 auto;
}

.page-home .coord-rail__link {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 10px;
  border: 1px solid transparent;
  color: var(--stone);
  text-decoration: none;
  font-size: 12.5px;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-home .coord-rail__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--teal);
}

.page-home .coord-rail__link:hover,
.page-home .coord-rail__link[data-active] {
  color: var(--paper);
  border-color: rgba(255, 107, 44, 0.45);
  background: rgba(255, 107, 44, 0.1);
}

.page-home .coord-rail__link[data-active] .coord-rail__code {
  color: var(--signal);
}

.page-home .hero-main {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 2.2vw, 24px);
}

.page-home .crumbs {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-home .crumbs a {
  color: var(--stone);
  text-decoration: none;
}

.page-home .crumbs a:hover {
  color: var(--signal);
}

.page-home .crumbs__sep {
  margin: 0 6px;
  color: var(--teal);
}

.page-home h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(33px, 6.2vw, 76px);
  line-height: 0.97;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 6px 12px;
  border: 1px solid var(--home-line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--celadon);
}

.page-home .kicker-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
}

.page-home .hero-lead {
  max-width: 64ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(242, 235, 221, 0.82);
}

.page-home .hero-actions,
.page-home .contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-home .copy-btn {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  padding: 9px 14px;
  background: transparent;
  color: var(--stone);
  border: 1px dashed var(--home-line);
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-home .copy-btn:hover {
  color: var(--paper);
  border-color: var(--signal);
}

.page-home .copy-btn[data-copied] {
  color: var(--celadon);
  border-color: var(--celadon);
}

/* ---------- 通用纸张卡 ---------- */
.page-home .sheet {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--teal);
  padding: clamp(18px, 3vw, 30px);
  box-shadow: 6px 6px 0 rgba(7, 19, 32, 0.55);
}

.page-home .sheet::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 48px;
  height: 4px;
  background: var(--signal);
}

.page-home .sheet-top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.page-home .sheet-code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  padding: 4px 8px;
  background: var(--signal);
  color: var(--ink-deep);
}

.page-home .sheet-state {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.page-home .sheet-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.25;
  margin-bottom: 16px;
}

.page-home .sheet-foot {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--home-line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

/* ---------- 清单 ---------- */
.page-home .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .checklist--loose {
  gap: 14px;
}

.page-home .checklist__item {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(242, 235, 221, 0.85);
}

.page-home .checklist__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 7px;
  background: var(--teal);
  transform: rotate(45deg);
}

/* ---------- 标签 ---------- */
.page-home .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 2px 7px;
  color: var(--ink-deep);
}

.page-home .tag--register {
  background: var(--celadon);
}

.page-home .tag--save {
  background: var(--amber);
}

.page-home .tag--usage {
  background: var(--mist);
}

/* ---------- 章节骨架 ---------- */
.page-home .section {
  position: relative;
  padding: clamp(40px, 6vw, 84px) 0;
  border-top: 1px solid var(--home-line-soft);
}

.page-home .sec--panel {
  background: var(--panel);
}

.page-home .sec--paper {
  background: var(--paper);
  color: var(--ink-deep);
}

.page-home .section__head {
  max-width: 68ch;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-home .eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--signal);
  margin-bottom: 12px;
}

.page-home .h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.2vw, 46px);
  line-height: 1.06;
  letter-spacing: -0.015em;
}

.page-home .h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.3;
}

.page-home .sec-lead {
  margin-top: 14px;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(242, 235, 221, 0.78);
}

.page-home .sec--paper .h2,
.page-home .sec--paper .h3,
.page-home .sec--paper .eyebrow {
  color: var(--ink-deep);
}

.page-home .sec--paper .eyebrow {
  color: var(--home-accent-deep);
}

.page-home .sec--paper .sec-lead {
  color: rgba(11, 27, 43, 0.75);
}

/* ---------- A-02 目录 ---------- */
.page-home .catalog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

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

.page-home .stat {
  background: var(--ink);
  padding: 16px 14px;
}

.page-home .stat-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.4vw, 34px);
  line-height: 1;
  color: var(--signal);
}

.page-home .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--stone);
}

.page-home .catalog-copy p {
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 235, 221, 0.8);
}

.page-home .media-frame {
  margin: 0;
  border: 1px solid var(--teal);
  background: var(--ink-deep);
}

.page-home .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .media-frame__caption {
  padding: 10px 12px;
  border-top: 1px solid var(--home-line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-home .media-frame--wide {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-home .tag-figure {
  margin-top: clamp(20px, 3vw, 32px);
  max-width: 640px;
}

/* ---------- A-03 换设备 ---------- */
.page-home .switch-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.4vw, 40px);
  align-items: start;
}

.page-home .switch-lead {
  margin: 16px 0 20px;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(242, 235, 221, 0.8);
}

.page-home .switch-copy .btn {
  margin-top: 22px;
  display: inline-block;
}

.page-home .device-row {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
}

.page-home .device-row li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 7px 14px;
  border: 1px solid var(--home-line);
  color: var(--mist);
}

/* ---------- A-04 标签 ---------- */
.page-home .tag-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .tag-card {
  border: 1px solid var(--home-line);
  border-top-width: 4px;
  background: var(--panel);
  padding: clamp(16px, 2.4vw, 24px);
  transition: transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-home .tag-card:hover {
  transform: translateY(-3px);
  background: var(--ink-deep);
}

.page-home .tag-card--register {
  border-top-color: var(--celadon);
}

.page-home .tag-card--save {
  border-top-color: var(--amber);
}

.page-home .tag-card--usage {
  border-top-color: var(--mist);
}

.page-home .tag-card__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--stone);
  margin-bottom: 10px;
}

.page-home .tag-card p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(242, 235, 221, 0.78);
}

.page-home .tag-card__meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--stone);
  padding-top: 10px;
  border-top: 1px dashed var(--home-line);
}

/* ---------- A-05 版本 ---------- */
.page-home .version-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .version-card {
  border: 1px solid rgba(11, 27, 43, 0.24);
  background: rgba(255, 255, 255, 0.38);
  padding: clamp(16px, 2.4vw, 24px);
}

.page-home .version-code {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--home-accent-deep);
  margin-bottom: 10px;
}

.page-home .version-card p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(11, 27, 43, 0.78);
}

.page-home .version-note {
  margin-top: clamp(18px, 3vw, 28px);
  padding-top: 14px;
  border-top: 1px dashed rgba(11, 27, 43, 0.28);
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(11, 27, 43, 0.7);
  max-width: 60ch;
}

/* ---------- A-06 覆盖 ---------- */
.page-home .network-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--home-line);
  border: 1px solid var(--home-line);
}

.page-home .network-item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  background: var(--panel);
  padding: clamp(16px, 2.4vw, 26px);
}

.page-home .net-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1;
  color: var(--celadon);
}

.page-home .net-text {
  font-size: 14px;
  line-height: 1.68;
  color: rgba(242, 235, 221, 0.8);
}

.page-home .network-note {
  margin-top: clamp(18px, 3vw, 28px);
  max-width: 72ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 235, 221, 0.75);
}

.page-home .network-note a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 44, 0.5);
}

.page-home .network-note a:hover {
  color: var(--paper);
}

/* ---------- A-07 场景 ---------- */
.page-home .scene-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .scene-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--home-line);
  background: rgba(22, 41, 58, 0.55);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-home .scene-card:hover {
  border-color: var(--signal);
  transform: translateY(-2px);
}

.page-home .scene-code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--signal);
}

.page-home .scene-card p {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(242, 235, 221, 0.75);
}

.page-home .scene-go {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--celadon);
}

.page-home .scene-go::after {
  content: " →";
}

/* ---------- A-08 联系 ---------- */
.page-home .sec--contact {
  border-top: 4px solid var(--signal);
}

.page-home .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: start;
}

.page-home .contact-lead {
  margin: 16px 0 22px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 235, 221, 0.8);
}

.page-home .contact-panel {
  border: 1px solid var(--teal);
  background: var(--panel);
  padding: clamp(18px, 3vw, 28px);
}

.page-home .contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px dashed var(--home-line);
}

.page-home .contact-key {
  flex: 0 0 100%;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-home .contact-val {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-home .contact-note {
  margin-top: 16px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--stone);
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-home .contact-key {
    flex: 0 0 92px;
  }
}

@media (min-width: 700px) {
  .page-home .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-home .tag-grid,
  .page-home .version-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-home .catalog-grid {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(24px, 3vw, 40px);
  }

  .page-home .stat-stack {
    grid-template-columns: 1fr;
  }

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

@media (min-width: 900px) {
  .page-home .switch-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }

  .page-home .contact-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  }
}

@media (min-width: 940px) {
  .page-home .hero {
    grid-template-columns: 168px minmax(0, 1fr);
  }

  .page-home .coord-rail {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0 0 0 16px;
    border-bottom: 0;
    border-left: 1px solid var(--home-line);
    position: sticky;
    top: 104px;
  }

  .page-home .coord-rail__item {
    position: relative;
  }

  .page-home .coord-rail__item::before {
    content: "";
    position: absolute;
    left: -20px;
    top: 15px;
    width: 8px;
    height: 8px;
    background: var(--ink);
    border: 1px solid var(--teal);
    transform: rotate(45deg);
  }

  .page-home .coord-rail__link {
    width: 100%;
    padding: 7px 8px;
  }
}

@media (min-width: 1040px) {
  .page-home .scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .tag-card,
  .page-home .scene-card,
  .page-home .coord-rail__link,
  .page-home .copy-btn {
    transition: none;
  }
}
<<<END>>>