.page-home {
  --home-hero-pad: clamp(18px, 3vw, 28px);
  background: var(--night);
  color: var(--fog);
  font-family: var(--font-body);
  line-height: 1.75;
}

.page-home .h-display {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 7.4vw, 4.7rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  font-weight: 800;
  margin: 12px 0 0;
  max-width: 18em;
}

.page-home .h-section {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.2vw, 2.6rem);
  line-height: 1.16;
  letter-spacing: -.01em;
  font-weight: 800;
  margin: 10px 0 14px;
}

.page-home .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0;
}

.page-home .mono {
  font-family: var(--font-mono);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: var(--edge);
  background:
    radial-gradient(120% 95% at 84% 4%, rgba(34, 245, 200, .2), transparent 58%),
    radial-gradient(90% 80% at 0% 100%, rgba(255, 184, 77, .1), transparent 62%),
    var(--night);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  top: -12%;
  right: -6%;
  width: 66%;
  height: 124%;
  z-index: -1;
  background: linear-gradient(165deg, rgba(34, 245, 200, .16), rgba(7, 35, 31, 0) 68%);
  clip-path: polygon(40% 0, 100% 0, 100% 100%, 0 76%);
  pointer-events: none;
}

.page-home .hero-inner {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: var(--home-hero-pad) var(--gutter) clamp(38px, 6vw, 78px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
}

.page-home .hero-crumb {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mint);
}

.page-home .hero-crumb .crumb-sep {
  color: var(--amber);
}

.page-home .hero-crumb [aria-current="page"] {
  color: var(--fog);
}

.page-home .hero-lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(1rem, 1.7vw, 1.1rem);
  color: var(--mint);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 4vw, 36px);
}

.page-home .hero-actions .btn {
  min-height: 44px;
}

.page-home .hero-side {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 340px;
  padding: clamp(14px, 2.6vw, 24px);
  border: var(--edge);
  box-shadow: var(--shadow-hard);
  background: var(--panel-2);
  overflow: hidden;
}

.page-home .hero-figure {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .hero-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .6;
}

.page-home .hero-board {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 16px;
  background: rgba(7, 35, 31, .88);
  border: var(--edge);
}

.page-home .hero-board-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--amber);
}

.page-home .hero-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 10px;
  padding: 11px 6px;
  min-height: 44px;
  color: var(--fog);
  text-decoration: none;
  border-top: 1px solid var(--line);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .hero-step:first-of-type {
  border-top: none;
}

.page-home .hero-step:hover,
.page-home .hero-step:focus-visible {
  background: rgba(34, 245, 200, .12);
}

.page-home .hero-step-index,
.page-home .hero-step-idx {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-home .hero-step-text {
  display: flex;
  flex-direction: column;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.35;
}

.page-home .hero-step-text small {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: .82rem;
  color: var(--mint);
  margin-top: 2px;
}

.page-home .hero-step-go {
  color: var(--cyan);
  text-align: right;
}

/* ---------- 通用章节 ---------- */
.page-home .section {
  position: relative;
  padding: clamp(44px, 7vw, 88px) 0;
  border-bottom: var(--edge);
}

.page-home .sec-inner {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-home .sec-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-home .sec-num {
  margin: 0;
  font-size: clamp(2.4rem, 9vw, 4.6rem);
  font-weight: 700;
  line-height: .86;
  letter-spacing: .04em;
  color: rgba(34, 245, 200, .16);
  -webkit-text-stroke: 1px rgba(34, 245, 200, .5);
}

.page-home .sec-lead {
  margin: 0;
  max-width: 40em;
  color: var(--mint);
  font-size: 1rem;
}

.page-home .sec-head-media img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--edge);
  box-shadow: var(--shadow-soft);
  object-fit: cover;
}

/* ---------- 场景轨道 ---------- */
.page-home .section--scenes {
  background:
    linear-gradient(180deg, rgba(14, 59, 51, .55), rgba(10, 44, 39, .2)),
    var(--night);
}

.page-home .rail-hint {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-home .scene-rail {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 6px 4px 22px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--cyan) var(--panel-2);
}

.page-home .scene-rail:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
}

.page-home .scene-card {
  flex: 0 0 min(82vw, 318px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 18px;
  background: var(--panel);
  border: var(--edge);
  box-shadow: var(--shadow-soft);
  color: var(--fog);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .scene-card:hover,
.page-home .scene-card:focus-visible {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--ink);
  border-color: var(--cyan);
}

.page-home .scene-num {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-home .scene-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.3;
  font-weight: 800;
}

.page-home .scene-card p {
  margin: 0;
  font-size: .94rem;
  color: var(--mint);
}

.page-home .scene-go {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
}

/* ---------- 内容中心与标签 ---------- */
.page-home .section--inside {
  background: var(--night);
}

.page-home .tabs {
  margin-top: 8px;
}

.page-home .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 0;
  border-bottom: var(--edge);
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-home .tab {
  appearance: none;
  background: var(--panel-2);
  border: var(--edge);
  border-bottom: none;
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  padding: 12px 16px;
  min-height: 44px;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .tab:hover {
  border-color: var(--cyan);
  color: var(--fog);
}

.page-home .tab[aria-selected="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  font-weight: 700;
}

.page-home .tab:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}

.page-home .tabpanel {
  padding-top: 4px;
}

.page-home .tabpanel + .tabpanel {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: clamp(24px, 3.4vw, 36px);
  border-top: 1px solid var(--line);
}

.page-home .col-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .col-card {
  padding: 20px 18px;
  background: var(--panel);
  border-left: 4px solid var(--cyan);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease);
}

.page-home .col-card:hover {
  background: var(--panel-2);
}

.page-home .col-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--fog);
}

.page-home .col-card p {
  margin: 0;
  font-size: .94rem;
  color: var(--mint);
}

.page-home .tag-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .tag-card {
  padding: 18px;
  background: var(--panel-2);
  border: var(--edge);
  box-shadow: var(--shadow-soft);
}

.page-home .tag-card h3 {
  margin: 0 0 8px;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--ink);
  background: var(--amber);
  padding: 5px 10px;
}

.page-home .tag-card p {
  margin: 0;
  font-size: .94rem;
  color: var(--mint);
}

.page-home .tag-figure {
  margin: clamp(18px, 3vw, 26px) 0 0;
  border: var(--edge);
  box-shadow: var(--shadow-hard);
  background: var(--panel);
}

.page-home .tag-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .tag-figure figcaption {
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--amber);
  border-top: 1px solid var(--line);
}

.page-home .panel-foot {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
}

.page-home .link-arrow {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
  text-decoration: none;
  border: 2px solid var(--line);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .link-arrow:hover,
.page-home .link-arrow:focus-visible {
  border-color: var(--cyan);
  background: rgba(34, 245, 200, .1);
}

/* ---------- 时间线 ---------- */
.page-home .section--timeline {
  background:
    linear-gradient(180deg, rgba(7, 35, 31, .2), rgba(14, 59, 51, .5)),
    var(--night);
}

.page-home .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 4px;
  border-left: var(--edge);
}

.page-home .tl-item {
  position: relative;
  padding: 0 0 clamp(24px, 4vw, 38px) clamp(22px, 3.4vw, 34px);
}

.page-home .tl-item:last-child {
  padding-bottom: 0;
}

.page-home .tl-item::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 8px;
  width: 16px;
  height: 16px;
  background: var(--night);
  border: 4px solid var(--cyan);
  transform: rotate(45deg);
}

.page-home .tl-item--now::before {
  background: var(--cyan);
  border-color: var(--amber);
}

.page-home .tl-year {
  display: block;
  font-size: clamp(1.3rem, 3.4vw, 1.9rem);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--amber);
  line-height: 1.2;
}

.page-home .tl-body h3 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 1.16rem;
  font-weight: 800;
  color: var(--fog);
}

.page-home .tl-body p {
  margin: 0;
  max-width: 42em;
  font-size: .96rem;
  color: var(--mint);
}

/* ---------- 帮助速查 ---------- */
.page-home .section--help {
  background: var(--night);
}

.page-home .help-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
}

.page-home .qa-item {
  background: var(--panel-2);
  border: var(--edge);
  margin-bottom: 12px;
  transition: border-color var(--dur) var(--ease);
}

.page-home .qa-item:last-child {
  margin-bottom: 0;
}

.page-home .qa-item[open] {
  border-color: var(--cyan);
}

.page-home .qa-item summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 16px 48px 16px 18px;
  min-height: 44px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--fog);
}

.page-home .qa-item summary::-webkit-details-marker {
  display: none;
}

.page-home .qa-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--amber);
  line-height: 1;
}

.page-home .qa-item[open] summary::after {
  content: "−";
  color: var(--cyan);
}

.page-home .qa-item summary:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: -6px;
}

.page-home .qa-item p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: .95rem;
  color: var(--mint);
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-home .help-anchor {
  align-self: start;
  padding: clamp(16px, 2.6vw, 24px);
  background: var(--panel);
  border: var(--edge);
  box-shadow: var(--shadow-hard);
}

.page-home .anchor-figure {
  margin: 0 0 16px;
  border: 1px solid var(--line);
}

.page-home .anchor-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .help-anchor h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.16rem, 2.4vw, 1.4rem);
  font-weight: 800;
  color: var(--fog);
}

.page-home .help-anchor p {
  margin: 0 0 12px;
  font-size: .94rem;
  color: var(--mint);
}

.page-home .help-anchor .btn {
  margin-top: 6px;
  min-height: 44px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .col-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-home .hero-inner {
    grid-template-columns: minmax(0, 55fr) minmax(0, 45fr);
    align-items: start;
    column-gap: clamp(24px, 3vw, 48px);
  }

  .page-home .hero-side {
    min-height: 460px;
  }

  .page-home .sec-head--split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-home .sec-head--split .sec-head-media {
    align-self: end;
  }

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

  .page-home .help-wrap {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-home .tag-figure {
    max-width: 720px;
  }
}

@media (max-width: 640px) {
  .page-home .hero-actions {
    position: sticky;
    bottom: 10px;
    z-index: 4;
    flex-wrap: nowrap;
    margin-top: 22px;
    padding: 9px;
    background: rgba(7, 35, 31, .95);
    border: var(--edge);
    box-shadow: var(--shadow-soft);
  }

  .page-home .hero-actions .btn {
    flex: 1 1 0;
    text-align: center;
    justify-content: center;
    font-size: .9rem;
  }

  .page-home .hero-side {
    min-height: 300px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .scene-card,
  .page-home .tab,
  .page-home .col-card,
  .page-home .link-arrow,
  .page-home .hero-step,
  .page-home .qa-item {
    transition: none;
  }

  .page-home .scene-card:hover,
  .page-home .scene-card:focus-visible {
    transform: none;
    box-shadow: var(--shadow-soft);
  }
}
<<<PAGE_CSS_END>>>