.page-home {
  --home-grid-line: rgba(34, 48, 63, 0.6);
  --home-panel: rgba(17, 28, 46, 0.94);
}

/* ---------- 首屏框景 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(20px, 4vw, 36px) clamp(44px, 7vw, 88px);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--home-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--home-grid-line) 1px, transparent 1px);
  background-size: 68px 68px;
  opacity: 0.45;
  pointer-events: none;
}

.page-home .home-hero .shell {
  position: relative;
  z-index: 1;
}

.page-home .home-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--ink-muted);
  margin: 0 0 var(--sp-5);
}

.page-home .home-hero .breadcrumb a {
  color: var(--ink-text);
}

.page-home .hero-frame {
  position: relative;
  border: 1px solid var(--line-dark);
  background: linear-gradient(158deg, var(--home-panel), rgba(11, 15, 20, 0.96));
  padding: clamp(22px, 4.2vw, 48px);
  margin: 0 0 var(--sp-6);
}

.page-home .hero-frame__corner {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--cyan);
}

.page-home .hero-frame__corner--tl { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.page-home .hero-frame__corner--tr { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.page-home .hero-frame__corner--bl { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }
.page-home .hero-frame__corner--br { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.page-home .hero-frame__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-5);
  margin: 0 0 var(--sp-5);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.page-home .hero-frame__meta > span:first-child {
  color: var(--cyan);
}

.page-home .hero-title {
  margin: 0 0 var(--sp-4);
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: 0.05em;
  line-height: 1.26;
  font-size: clamp(27px, 6vw, 50px);
  color: #FFFFFF;
  max-width: 24ch;
}

.page-home .hero-lead {
  margin: 0 0 var(--sp-6);
  max-width: 46ch;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.8;
  color: var(--ink-text);
}

.page-home .search-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3) var(--sp-4);
  border: 1px solid var(--line-dark);
  background: rgba(11, 15, 20, 0.72);
  padding: var(--sp-4) var(--sp-5);
  color: var(--ink-text);
  text-decoration: none;
  font-size: 15px;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.page-home .search-line:hover,
.page-home .search-line:focus-visible {
  border-color: var(--cyan);
  color: #FFFFFF;
}

.page-home .search-line__label {
  position: relative;
  padding-left: var(--sp-5);
}

.page-home .search-line__label::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -5px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
}

.page-home .search-line__key {
  color: var(--orange);
  font-size: 13.5px;
  letter-spacing: 0;
}

.page-home .hero-keys {
  list-style: none;
  margin: var(--sp-6) 0 0;
  padding: var(--sp-5) 0 0;
  border-top: 1px solid var(--line-dark);
  display: grid;
  gap: var(--sp-4);
}

.page-home .hero-keys li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-muted);
}

.page-home .hero-keys__k {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.page-home .hero-visual {
  margin: 0;
}

.page-home .hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line-dark);
  opacity: 0.85;
}

/* ---------- 栏目标签轴 ---------- */
.page-home .home-axis,
.page-home .home-layers,
.page-home .home-compare,
.page-home .home-feedback {
  padding-block: clamp(44px, 7vw, 84px);
}

.page-home .section-desc {
  max-width: 54ch;
}

.page-home .axis-grid {
  display: grid;
  gap: var(--sp-6);
  margin-top: var(--sp-6);
}

.page-home .tag-axis {
  display: flex;
  gap: var(--sp-3);
  list-style: none;
  margin: 0;
  padding: 0 0 var(--sp-3);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-home .tag-axis > li {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-home .tag {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  white-space: nowrap;
}

.page-home .tag-num {
  font-size: 12px;
  letter-spacing: 0;
  opacity: 0.85;
}

.page-home .axis-hint {
  margin: var(--sp-2) 0 0;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-home .axis-notes {
  margin-top: var(--sp-5);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--line-light);
  display: grid;
  gap: var(--sp-3);
}

.page-home .axis-notes p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
  max-width: 52ch;
}

.page-home .axis-visual {
  margin: 0;
}

.page-home .axis-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border: 1px solid var(--line-light);
}

/* ---------- 资料层级 ---------- */
.page-home .layers-grid {
  display: grid;
  gap: var(--sp-6);
  margin-top: var(--sp-6);
}

.page-home .layers-list {
  margin: 0;
}

.page-home .layers-list .index-item__title {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.03em;
}

.page-home .layers-list .index-item__meta {
  color: var(--muted);
  line-height: 1.75;
  max-width: 46ch;
}

.page-home .layers-visual {
  margin: 0;
}

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

.page-home .stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-5) var(--sp-4);
  margin-top: var(--sp-6);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--line-light);
}

.page-home .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-home .stat-num {
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-home .stat:nth-child(3) .stat-num {
  color: var(--orange);
}

.page-home .stat-label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 跨设备对照 ---------- */
.page-home .home-compare .section-title {
  color: #FFFFFF;
}

.page-home .home-compare .section-desc {
  color: var(--ink-text);
}

.page-home .home-compare .section-num {
  color: var(--cyan);
}

.page-home .tablist {
  display: inline-flex;
  margin: var(--sp-5) 0 var(--sp-5);
  border: 1px solid var(--line-dark);
}

.page-home .tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--line-dark);
  padding: 11px 22px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.page-home .tab:last-child {
  border-right: 0;
}

.page-home .tab[aria-selected="true"] {
  background: var(--cyan);
  color: var(--ink-900);
  font-weight: 700;
}

.page-home .panel-grid {
  display: grid;
  gap: var(--sp-6);
}

.page-home .panel-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.04em;
  font-size: clamp(19px, 3vw, 24px);
  line-height: 1.4;
  color: #FFFFFF;
}

.page-home .panel-list {
  list-style: none;
  margin: var(--sp-5) 0 0;
  padding: 0;
  display: grid;
  gap: var(--sp-4);
}

.page-home .panel-list li {
  border-left: 2px solid var(--line-dark);
  padding-left: var(--sp-4);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-text);
}

.page-home .panel-figure {
  margin: 0;
}

.page-home .panel-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border: 1px solid var(--line-dark);
}

/* ---------- 反馈入口 ---------- */
.page-home .feedback-grid {
  display: grid;
  gap: var(--sp-6);
  margin-top: var(--sp-6);
}

.page-home .steps-list {
  margin: 0;
}

.page-home .steps-list .index-item__title a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line-light);
}

.page-home .steps-list .index-item__title a:hover,
.page-home .steps-list .index-item__title a:focus-visible {
  border-bottom-color: var(--cyan-deep);
  color: var(--cyan-deep);
}

.page-home .steps-list .index-item__meta {
  color: var(--muted);
  line-height: 1.75;
  max-width: 46ch;
}

.page-home .feedback-side {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.page-home .note {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line-light);
  border-left: 3px solid var(--cyan);
  padding: var(--sp-5);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
}

.page-home .note .note__label {
  display: block;
  margin-bottom: var(--sp-2);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-deep);
}

.page-home .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
}

.page-home .feedback-side__foot {
  margin: 0;
  font-size: 12.5px;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .hero-keys {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-5);
  }

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

@media (min-width: 900px) {
  .page-home .axis-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
    gap: var(--sp-7);
  }

  .page-home .layers-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: var(--sp-7);
  }

  .page-home .panel-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: center;
    gap: var(--sp-7);
  }

  .page-home .feedback-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
    gap: var(--sp-7);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .search-line,
  .page-home .tab {
    transition: none;
  }
}