.page-home {
  --home-gutter: 24px;
  position: relative;
  overflow-x: clip;
  background: var(--c-base);
  color: var(--c-text);
  font-family: var(--font-sans);
}

.page-home::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--c-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.35;
}

.page-home::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, rgba(232, 241, 255, 0.022) 0 1px, transparent 1px 4px);
}

.page-home > * {
  position: relative;
  z-index: 1;
}

.page-home .wrap {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 var(--home-gutter);
}

.page-home .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
}

/* ---------- 上下文条 ---------- */
.page-home .context-bar {
  border-bottom: 1px solid var(--c-line);
  background: linear-gradient(90deg, rgba(22, 224, 210, 0.09), rgba(255, 61, 166, 0.05) 46%, transparent 78%);
}

.page-home .context-bar__inner {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 12px var(--home-gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
}

.page-home .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .breadcrumbs__link,
.page-home .breadcrumbs__current {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-decoration: none;
  color: var(--c-muted);
  text-transform: uppercase;
}

.page-home .breadcrumbs__link:hover {
  color: var(--c-cyan);
}

.page-home .breadcrumbs__current {
  color: var(--c-text);
}

.page-home .context-bar__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  font-size: 12px;
  color: var(--c-muted);
}

.page-home .context-bar__meta b {
  color: var(--c-text);
  font-weight: 500;
  margin-left: 6px;
}

.page-home .version-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-home .version-switch__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-muted);
  text-transform: uppercase;
}

.page-home .version-switch__btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 5px 9px;
  background: transparent;
  color: var(--c-muted);
  border: 1px solid var(--c-line);
  border-radius: 0;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-home .version-switch__btn:hover {
  color: var(--c-text);
  border-color: var(--c-cyan);
}

.page-home .version-switch__btn[aria-pressed="true"] {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-base);
  box-shadow: var(--glow-cyan);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  padding: 40px 0 0;
}

.page-home .hero__grid {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 var(--home-gutter);
  display: grid;
  gap: 28px;
}

.page-home .hero__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
  text-transform: uppercase;
}

.page-home h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 7vw, 58px);
  font-weight: 200;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.page-home h1 strong {
  font-weight: 900;
  color: #ffffff;
  text-shadow: var(--glow-cyan);
}

.page-home .hero__lead {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-muted);
  max-width: 44ch;
}

.page-home .hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 24px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--c-line);
}

.page-home .hero__fact {
  font-size: 12.5px;
  color: var(--c-muted);
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.page-home .hero__fact .mono {
  font-size: 20px;
  color: var(--c-text);
}

.page-home .hero__media {
  border: 1px solid var(--c-line);
  background: linear-gradient(140deg, rgba(22, 224, 210, 0.12), rgba(255, 61, 166, 0.1) 55%, transparent);
}

.page-home .hero__media img,
.page-home .activity-panel__media img,
.page-home .query__media img,
.page-home .library__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 章节索引 ---------- */
.page-home .hero__index {
  max-width: var(--w-max);
  margin: 44px auto 0;
  padding: 0 var(--home-gutter);
}

.page-home .hero__index-label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-muted);
  text-transform: uppercase;
}

.page-home .chapter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--c-line);
}

.page-home .chapter {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 16px 4px 18px;
  border-bottom: 1px solid var(--c-line);
  text-decoration: none;
  color: inherit;
}

.page-home .chapter::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(255, 61, 166, 0.5), transparent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.26s var(--ease);
}

.page-home .chapter:hover::after,
.page-home .chapter:focus-visible::after {
  transform: scaleX(1);
}

.page-home .chapter__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--c-cyan);
  padding-top: 4px;
}

.page-home .chapter__title {
  display: block;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-home .chapter__desc {
  display: block;
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-home .chapter__arrow {
  font-family: var(--font-mono);
  color: var(--c-muted);
  padding-top: 2px;
  transition: transform 0.18s var(--ease), color 0.18s var(--ease);
}

.page-home .chapter:hover .chapter__arrow,
.page-home .chapter:focus-visible .chapter__arrow {
  color: var(--c-cyan);
  transform: translateX(4px);
}

/* ---------- 斜切分隔带 ---------- */
.page-home .divider-slant {
  margin: 4px 0;
}

.page-home .divider-slant__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* ---------- 章节通用 ---------- */
.page-home .section {
  padding: 56px 0;
}

.page-home .section__head {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 var(--home-gutter) 26px;
}

.page-home .section__index {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-cyan);
  text-transform: uppercase;
}

.page-home .section__title {
  margin: 0 0 14px;
  font-size: clamp(23px, 4vw, 40px);
  font-weight: 250;
  line-height: 1.3;
  letter-spacing: 0.01em;
}

.page-home .section__title strong {
  font-weight: 800;
  color: #ffffff;
  text-shadow: 0 0 14px rgba(22, 224, 210, 0.35);
}

.page-home .section__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-muted);
  max-width: 64ch;
}

/* ---------- 三类栏目 ---------- */
.page-home .tabs__btn {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--c-muted);
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 12px 16px;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-home .tabs__btn:hover {
  color: var(--c-text);
}

.page-home .tabs__btn[aria-selected="true"] {
  color: var(--c-text);
  border-bottom-color: var(--c-cyan);
  font-weight: 800;
}

.page-home .activity-panel {
  display: grid;
  gap: 22px;
  padding: 26px 0 0;
}

.page-home .activity-panel__media {
  border: 1px solid var(--c-line);
}

.page-home .activity-panel__title {
  margin: 16px 0 10px;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.5;
}

.page-home .activity-panel__text {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-muted);
  max-width: 52ch;
}

.page-home .activity-panel__meta {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-home .activity-panel__meta li {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--c-muted);
  padding-left: 14px;
  position: relative;
}

.page-home .activity-panel__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 1px;
  background: var(--c-cyan);
}

/* ---------- 记录查询 ---------- */
.page-home .section--query {
  background: linear-gradient(180deg, rgba(11, 20, 48, 0.75), transparent 82%);
}

.page-home .query {
  display: grid;
  gap: 26px;
}

.page-home .query__media {
  border: 1px solid var(--c-line);
  background: radial-gradient(circle at 50% 50%, rgba(22, 224, 210, 0.16), transparent 68%);
}

.page-home .result-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
}

.page-home .result-chips li {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  padding: 8px 14px;
  color: var(--c-text);
  border: 1px solid var(--c-line);
  background: linear-gradient(120deg, rgba(22, 224, 210, 0.14), transparent 74%);
}

.page-home .query__note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--c-muted);
  max-width: 58ch;
}

.page-home .steps {
  counter-reset: step;
  list-style: none;
  margin: 24px 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 13px 16px;
  background: var(--c-layer);
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-cyan);
  font-size: 14px;
  color: var(--c-text);
}

.page-home .steps li::before {
  content: "0" counter(step);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-amber);
}

/* ---------- 服务清单 ---------- */
.page-home .services {
  display: grid;
  gap: 32px;
}

.page-home .filter {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.page-home .filter__label {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-muted);
  text-transform: uppercase;
}

.page-home .filter__input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-text);
  background: var(--c-layer);
  border: 1px solid var(--c-line);
  border-radius: 0;
}

.page-home .filter__input::placeholder {
  color: var(--c-muted);
}

.page-home .filter__input:focus {
  outline: none;
  border-color: var(--c-cyan);
  box-shadow: var(--glow-cyan);
}

.page-home .filter__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-home .filter__tags .tag {
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  padding: 7px 12px;
  color: var(--c-muted);
  background: transparent;
  border: 1px solid var(--c-line);
  border-radius: 0;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-home .filter__tags .tag:hover {
  color: var(--c-text);
  border-color: var(--c-cyan);
}

.page-home .filter__tags .tag[aria-pressed="true"] {
  color: var(--c-base);
  background: var(--c-cyan);
  border-color: var(--c-cyan);
}

.page-home .svc-grid {
  display: grid;
  gap: 16px;
}

.page-home .svc-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 20px;
  background: var(--c-layer);
  border: 1px solid var(--c-line);
  border-radius: 0;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-home .svc-card:hover {
  border-color: var(--c-cyan);
  transform: translateY(-3px);
}

.page-home .svc-card .card__title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
}

.page-home .svc-card .card__body {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-home .svc-card__meta {
  font-size: 12px;
  color: var(--c-muted);
  letter-spacing: 0.08em;
}

.page-home .svc-card .card__foot {
  margin-top: auto;
}

.page-home .revisit {
  padding: 22px;
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-purple);
  background: linear-gradient(180deg, rgba(108, 123, 255, 0.16), rgba(11, 20, 48, 0.6) 72%);
}

.page-home .revisit__title {
  margin: 10px 0 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}

.page-home .revisit__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .revisit__item {
  padding: 12px 14px;
  border-left: 2px solid var(--c-purple);
  background: rgba(5, 10, 26, 0.6);
}

.page-home .revisit__layer {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-purple);
}

.page-home .revisit__desc {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-home .revisit__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.page-home .revisit__tags .tag {
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 6px 10px;
  border-radius: 0;
}

/* ---------- 资料库 ---------- */
.page-home .library__media {
  border: 1px solid var(--c-line);
  margin-bottom: 26px;
}

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

.page-home .tl-node {
  display: grid;
  gap: 8px;
  padding: 20px 16px;
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-cyan);
  background: var(--c-layer);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-home .tl-node:hover {
  transform: translateY(-4px);
  border-color: var(--c-cyan);
  box-shadow: var(--glow-cyan);
}

.page-home .tl-node__week {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-muted);
}

.page-home .tl-node__count {
  font-size: 24px;
  color: #ffffff;
}

.page-home .tl-node__clusters {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-home .tl-node__more {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
}

.page-home .library__note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 版本节奏 ---------- */
.page-home .pulse-line {
  display: block;
  width: 100%;
  height: 60px;
  color: var(--c-cyan);
  opacity: 0.7;
  margin-bottom: 22px;
}

.page-home .stat-strip {
  list-style: none;
  margin: 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-home .stat {
  padding: 18px 16px;
  background: var(--c-layer);
}

.page-home .stat__num {
  display: block;
  font-size: 26px;
  color: #ffffff;
  text-shadow: 0 0 12px rgba(22, 224, 210, 0.35);
}

.page-home .stat__label {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}

.page-home .mile-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .mile {
  padding: 16px;
  border-left: 2px solid var(--c-magenta);
  background: rgba(11, 20, 48, 0.68);
}

.page-home .mile__year {
  display: block;
  font-size: 20px;
  color: var(--c-magenta);
  margin-bottom: 8px;
}

.page-home .mile__text {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-home .version__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 联系 ---------- */
.page-home .contact-band {
  display: grid;
  gap: 24px;
  padding: 24px;
  border: 1px solid var(--c-line);
  background: linear-gradient(120deg, rgba(255, 176, 32, 0.1), rgba(22, 224, 210, 0.07) 58%, transparent);
}

.page-home .contact-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-home .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-home .contact-item {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  background: var(--c-base);
}

.page-home .contact-item__label {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--c-muted);
  text-transform: uppercase;
}

.page-home .contact-item__value {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-text);
  word-break: break-word;
}

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

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

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

@media (min-width: 768px) {
  .page-home {
    --home-gutter: 32px;
  }

  .page-home .hero {
    padding-top: 56px;
  }

  .page-home .chapter-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 34px;
  }

  .page-home .chapter-item:nth-child(even) .chapter {
    margin-top: 22px;
  }

  .page-home .activity-panel {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 36px;
    align-items: center;
  }

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

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

  .page-home .section {
    padding: 68px 0;
  }
}

@media (min-width: 960px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: end;
  }

  .page-home .query {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 46px;
    align-items: start;
  }

  .page-home .contact-band {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    padding: 32px;
  }
}

@media (min-width: 1024px) {
  .page-home .services {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 1280px) {
  .page-home .section {
    padding: 76px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .chapter::after,
  .page-home .chapter__arrow,
  .page-home .svc-card,
  .page-home .tl-node {
    transition: opacity 0.12s linear;
  }

  .page-home .svc-card:hover,
  .page-home .tl-node:hover {
    transform: none;
  }
}