.page-home {
  display: block;
  background-color: var(--ink-900);
  color: var(--mist-050);
}

/* ---------- 首屏海报 ---------- */
.page-home .home-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(36px, 8vw, 88px) 0 clamp(44px, 9vw, 104px);
  border-bottom: 2px solid var(--line-600);
  background:
    radial-gradient(120% 90% at 84% 8%, rgba(46, 214, 180, .12), transparent 62%),
    linear-gradient(180deg, var(--ink-950), var(--ink-900) 72%);
  overflow: hidden;
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: -2px;
  z-index: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, rgba(44, 56, 115, .5) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, rgba(44, 56, 115, .5) 0 1px, transparent 1px 34px);
  opacity: .5;
}

.page-home .home-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 6vw, 48px);
}

.page-home .home-hero .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: .08em;
  color: var(--slate-300);
}

.page-home .home-hero .breadcrumb a {
  color: var(--slate-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .home-hero .breadcrumb a:hover,
.page-home .home-hero .breadcrumb a:focus-visible {
  color: var(--teal-400);
  border-bottom-color: var(--teal-400);
}

.page-home .home-hero__title {
  margin: 0 0 18px;
  font-size: clamp(38px, 9.2vw, 84px);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--mist-050);
}

.page-home .home-hero__lede {
  max-width: 32em;
  margin: 0 0 28px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate-300);
}

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 首屏框景窗口 ---------- */
.page-home .home-frame {
  margin: 0;
  border: 2px solid var(--line-600);
  box-shadow: var(--shadow-hard);
  background-color: var(--ink-800);
}

.page-home .home-frame__scale {
  display: flex;
  justify-content: space-between;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 2px solid var(--line-600);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: .08em;
  color: var(--teal-400);
}

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

.page-home .home-frame__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-600);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: .04em;
  color: var(--slate-300);
}

/* ---------- 左右分栏主体 ---------- */
.page-home .home-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 6vw, 56px);
  padding-top: clamp(44px, 8vw, 88px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-home .home-index {
  border: 2px solid var(--line-600);
  background-color: var(--ink-800);
  box-shadow: var(--shadow-soft);
  padding: 18px;
}

.page-home .home-index__list {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .home-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px;
  border-left: 4px solid transparent;
  font-size: 15px;
  line-height: 1.5;
  color: var(--slate-300);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-home .home-index__link .mono {
  font-size: 12px;
  color: var(--orange-500);
}

.page-home .home-index__link:hover,
.page-home .home-index__link:focus-visible {
  color: var(--mist-050);
  border-left-color: var(--teal-400);
  background-color: var(--ink-700);
}

.page-home .home-index__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 2px solid var(--line-600);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--teal-400);
}

.page-home .home-stream {
  display: grid;
  gap: clamp(52px, 8vw, 88px);
  min-width: 0;
}

.page-home .home-block {
  min-width: 0;
}

.page-home .home-block .section__head {
  border-bottom: 2px solid var(--line-600);
  padding-bottom: 14px;
  margin-bottom: 22px;
}

.page-home .home-block .section__head h2 {
  margin: 8px 0 0;
  font-size: clamp(24px, 4.4vw, 34px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--mist-050);
}

.page-home .home-block .prose {
  max-width: 46em;
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate-300);
}

.page-home .home-hint {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate-300);
}

.page-home .home-more {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 20px 0 0;
}

/* ---------- 栏目轨道折叠 ---------- */
.page-home .home-track {
  margin: 0 0 24px;
  border: 2px solid var(--line-600);
  background-color: var(--ink-800);
  box-shadow: var(--shadow-soft);
}

.page-home .home-track__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--mist-050);
  cursor: pointer;
  list-style: none;
}

.page-home .home-track__summary::-webkit-details-marker {
  display: none;
}

.page-home .home-track__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--teal-400);
}

.page-home .home-track[open] .home-track__summary::after {
  content: "–";
}

.page-home .home-track__summary:focus-visible {
  outline: 2px solid var(--teal-400);
  outline-offset: -2px;
}

.page-home .home-track__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border-top: 2px solid var(--line-600);
  background-color: var(--line-600);
}

.page-home .home-track__col {
  background-color: var(--ink-800);
  padding: 18px;
}

.page-home .home-track__coltitle {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--teal-400);
}

.page-home .home-track__coltitle .mono {
  margin-right: 6px;
  color: var(--orange-500);
}

.page-home .home-track__list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .home-track__list li {
  padding-left: 12px;
  border-left: 2px solid var(--line-600);
  font-size: 15px;
  line-height: 1.6;
  color: var(--slate-300);
}

/* ---------- 图片容器微调 ---------- */
.page-home .home-shot {
  margin: 0;
  border: 2px solid var(--line-600);
  box-shadow: var(--shadow-soft);
  background-color: var(--ink-800);
}

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

.page-home .home-shot .media-frame__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-600);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--slate-300);
}

/* ---------- 七项服务 ---------- */
.page-home .svc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .svc-card {
  position: relative;
  border: 2px solid var(--line-600);
  background-color: var(--ink-800);
  box-shadow: var(--shadow-soft);
  padding: 18px;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .svc-card:hover,
.page-home .svc-card:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
  border-color: var(--teal-400);
}

.page-home .svc-card__num {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange-500);
}

.page-home .svc-card__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--mist-050);
}

.page-home .svc-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate-300);
}

/* ---------- 帮助与联系 ---------- */
.page-home .help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .help-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  border: 2px solid var(--line-600);
  background-color: var(--ink-800);
  box-shadow: var(--shadow-soft);
  padding: 20px;
}

.page-home .help-card__title {
  margin: 0;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--mist-050);
}

.page-home .help-card__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .help-card__list li {
  padding-left: 12px;
  border-left: 2px solid var(--line-600);
  font-size: 15px;
  line-height: 1.6;
  color: var(--slate-300);
}

.page-home .help-card__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate-300);
}

.page-home .help-card--paper {
  background-color: var(--paper-050);
  border-color: var(--ink-900);
}

.page-home .help-card--paper .eyebrow {
  color: var(--ink-900);
}

.page-home .help-card--paper .help-card__title {
  color: var(--ink-900);
}

.page-home .help-card--paper .help-card__list li {
  border-left-color: var(--grayblue-200);
  color: var(--ink-800);
}

.page-home .help-card--paper .help-card__note {
  color: var(--ink-800);
}

/* ---------- 导出与版本 ---------- */
.page-home .export-panel {
  border: 2px solid var(--line-600);
  border-left: 4px solid var(--teal-400);
  background-color: var(--ink-700);
  box-shadow: var(--shadow-soft);
  padding: 18px;
  margin-bottom: 20px;
}

.page-home .export-panel__title {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--mist-050);
}

.page-home .export-panel__formats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.page-home .export-panel__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--slate-300);
}

.page-home .home-version {
  margin-top: 24px;
  border: 2px solid var(--line-600);
  border-left: 4px solid var(--orange-500);
  background-color: var(--ink-800);
  box-shadow: var(--shadow-soft);
  padding: 0 18px 18px;
}

.page-home .home-version__summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 16px 0 0;
  padding: 4px 10px;
  border: 2px solid var(--orange-500);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange-500);
  cursor: pointer;
  list-style: none;
}

.page-home .home-version__summary::-webkit-details-marker {
  display: none;
}

.page-home .home-version__summary:focus-visible {
  outline: 2px solid var(--teal-400);
  outline-offset: 2px;
}

.page-home .home-version .prose {
  max-width: 46em;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate-300);
}

.page-home .home-version .home-more {
  margin-top: 16px;
}

/* ---------- 收尾纹理 ---------- */
.page-home .home-texture {
  display: block;
  margin: 0;
  border-top: 2px solid var(--line-600);
  background-color: var(--ink-950);
}

.page-home .home-texture img {
  display: block;
  width: 100%;
  height: clamp(120px, 22vw, 240px);
  max-width: 100%;
  object-fit: cover;
  opacity: .5;
}

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

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

@media (min-width: 760px) {
  .page-home .home-track__cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(32px, 5vw, 64px);
    align-items: end;
  }

  .page-home .home-hero__lead {
    padding-right: clamp(24px, 4vw, 48px);
    border-right: 2px solid var(--line-600);
  }

  .page-home .home-hero__title {
    margin-bottom: 22px;
  }
}

@media (min-width: 1000px) {
  .page-home .home-body {
    grid-template-columns: 240px minmax(0, 1fr);
    align-items: start;
  }

  .page-home .home-index {
    position: sticky;
    top: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .svc-card,
  .page-home .home-index__link,
  .page-home .home-hero .breadcrumb a {
    transition: none;
  }

  .page-home .svc-card:hover,
  .page-home .svc-card:focus-within {
    transform: none;
  }
}