.page-home {
  --home-radius: 20px;
  --home-gap: 20px;
  background: var(--space);
  color: var(--silver);
  overflow-x: hidden;
}

/* ============ 首屏 ============ */
.page-home .home-hero {
  position: relative;
  padding: 22px 0 64px;
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  top: -180px;
  right: -140px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 123, 216, 0.26) 0%, rgba(111, 211, 217, 0.12) 44%, rgba(7, 20, 38, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.page-home .home-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-home .home-hero__aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

/* 站点地图缩略锚点 */
.page-home .home-atlas {
  border: 1px solid var(--line);
  border-radius: var(--home-radius);
  background: linear-gradient(165deg, rgba(15, 36, 64, 0.94) 0%, rgba(7, 20, 38, 0.62) 100%);
  padding: 5px 6px 8px;
}

.page-home .home-atlas__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 10px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  border-radius: 12px;
  transition: background 0.18s var(--ease);
}

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

.page-home .home-atlas__summary:hover,
.page-home .home-atlas__summary:focus-visible {
  background: rgba(216, 169, 74, 0.08);
}

.page-home .home-atlas__peak {
  width: 14px;
  height: 14px;
  flex: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--violet));
  box-shadow: 0 0 0 3px rgba(216, 169, 74, 0.14);
}

.page-home .home-atlas__name {
  font-family: var(--font-title);
  font-size: 13px;
  letter-spacing: 0.1em;
}

.page-home .home-atlas__meta {
  margin-left: auto;
  color: var(--dimmer);
  font-size: 10px;
  letter-spacing: 0.16em;
}

.page-home .home-atlas__list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0 2px;
  display: grid;
  gap: 1px;
}

.page-home .home-atlas__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 10px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 14px;
  color: var(--dim);
  transition: color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-home .home-atlas__list a span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--dimmer);
}

.page-home .home-atlas__list a:hover,
.page-home .home-atlas__list a:focus-visible {
  color: var(--silver);
  background: rgba(232, 237, 244, 0.06);
  transform: translateX(2px);
}

/* 图片容器 */
.page-home .home-shot {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--home-radius);
  overflow: hidden;
  background: linear-gradient(150deg, var(--midnight), var(--space));
}

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

.page-home .home-hero__atlas-shot {
  display: none;
}

/* 首屏主列 */
.page-home .home-hero__main {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.page-home .home-hero__switch {
  display: flex;
  justify-content: flex-start;
}

.page-home .home-switch {
  position: relative;
  width: 100%;
}

.page-home .home-switch__summary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  list-style: none;
  cursor: pointer;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(15, 36, 64, 0.6);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--silver);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

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

.page-home .home-switch__summary:hover,
.page-home .home-switch__summary:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

.page-home .home-switch__hint {
  color: var(--dimmer);
}

.page-home .home-switch__caret {
  color: var(--gold);
  font-size: 10px;
}

.page-home .home-switch__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 8px;
  display: grid;
  gap: 2px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--midnight);
}

.page-home .home-switch__list a {
  display: block;
  padding: 9px 12px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 14px;
  color: var(--dim);
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-home .home-switch__list a:hover,
.page-home .home-switch__list a:focus-visible {
  color: var(--silver);
  background: rgba(232, 237, 244, 0.06);
}

.page-home .home-switch__list a[aria-current="page"] {
  color: var(--gold);
  background: var(--gold-soft);
}

.page-home .home-hero__title {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(29px, 6.6vw, 52px);
  line-height: 1.2;
  letter-spacing: 0.02em;
  font-weight: 700;
  color: var(--silver);
}

.page-home .home-hero__lede {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--dim);
}

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

.page-home .home-hero__art {
  aspect-ratio: 16 / 9;
  margin-top: 6px;
}

.page-home .home-hero__art img {
  height: 100%;
  object-fit: cover;
}

/* ============ 三步路径 ============ */
.page-home .home-steps {
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.page-home .home-steps__head {
  max-width: 42em;
  margin-bottom: 26px;
}

.page-home .home-steps__head .h2 {
  margin: 10px 0 12px;
}

.page-home .home-steps__intro {
  margin: 0;
  color: var(--dim);
  font-size: 15px;
  line-height: 1.8;
}

.page-home .home-steps__list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
}

.page-home .home-steps__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 8px 18px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.page-home .home-steps__item:first-child {
  border-top: 1px solid var(--line);
}

.page-home .home-steps__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gold);
  padding-top: 3px;
}

.page-home .home-steps__num::after {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  margin-top: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--violet));
  box-shadow: 0 0 0 4px rgba(111, 211, 217, 0.08);
}

.page-home .home-steps__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--silver);
}

.page-home .home-steps__body p {
  margin: 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--dim);
}

.page-home .home-steps__figure {
  margin: 0;
}

/* ============ 栏目入口索引 ============ */
.page-home .home-index {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home .home-index__head {
  max-width: 40em;
  margin-bottom: 22px;
}

.page-home .home-index__head .h2 {
  margin: 10px 0 10px;
}

.page-home .home-index__intro {
  margin: 0;
  color: var(--dim);
  font-size: 15px;
  line-height: 1.8;
}

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

.page-home .index-list__item {
  border-bottom: 1px solid var(--line);
}

.page-home .index-list__link {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 6px 16px;
  align-items: baseline;
  padding: 18px 2px;
  text-decoration: none;
  color: var(--silver);
  transition: background 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-home .index-list__link:hover,
.page-home .index-list__link:focus-visible {
  background: rgba(232, 237, 244, 0.04);
  padding-left: 8px;
}

.page-home .index-list__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-home .index-list__title {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-home .index-list__meta {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.7;
  color: var(--dimmer);
}

.page-home .home-index__aside {
  margin: 20px 0 0;
  font-size: 13px;
  color: var(--dimmer);
}

.page-home .home-index__aside a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(216, 169, 74, 0.4);
}

.page-home .home-index__aside a:hover,
.page-home .home-index__aside a:focus-visible {
  color: var(--silver);
  border-bottom-color: var(--silver);
}

/* ============ 下载栏 ============ */
.page-home .home-download {
  background: var(--midnight);
  border-bottom: 1px solid var(--line);
}

.page-home .home-download__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: center;
}

.page-home .home-download__shot {
  order: 2;
}

.page-home .home-download__body {
  order: 1;
  min-width: 0;
}

.page-home .home-download__body .h2 {
  margin: 10px 0 14px;
}

.page-home .home-download__text {
  margin: 0 0 20px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--dim);
}

.page-home .home-download__tags {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ============ 联系入口 ============ */
.page-home .home-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-home .home-contact__lead .h2 {
  margin: 10px 0 14px;
}

.page-home .home-contact__text {
  margin: 0 0 22px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--dim);
}

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

.page-home .home-contact__list .contact-list__item {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .home-contact__list .contact-list__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--dimmer);
}

.page-home .home-contact__list .contact-list__value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--silver);
  word-break: break-word;
}

/* ============ 维护与信任 ============ */
.page-home .home-trust {
  background: var(--paper);
  color: var(--ink);
}

.page-home .home-trust__kicker {
  color: var(--eclipse);
}

.page-home .home-trust .h2 {
  margin: 10px 0 14px;
  color: var(--ink);
}

.page-home .home-trust__text {
  margin: 0 0 28px;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(44, 36, 29, 0.78);
}

.page-home .home-trust__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 20px;
}

.page-home .home-trust__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 14px;
  border-top: 2px solid var(--ink);
}

.page-home .home-trust__num {
  font-family: var(--font-title);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-home .home-trust__cap {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(44, 36, 29, 0.72);
}

/* ============ 桌面端 ============ */
@media (min-width: 760px) {
  .page-home .home-hero {
    padding: 28px 0 76px;
  }

  .page-home .home-hero__atlas-shot {
    display: block;
  }

  .page-home .home-steps__item {
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .page-home .index-list__link {
    grid-template-columns: 64px minmax(0, 1fr) minmax(0, 300px);
    gap: 16px;
  }

  .page-home .index-list__meta {
    grid-column: 3;
    text-align: right;
  }

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

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-home .home-hero__switch {
    justify-content: flex-end;
  }

  .page-home .home-switch {
    width: auto;
    min-width: 220px;
  }

  .page-home .home-hero__main {
    gap: 20px;
  }

  .page-home .home-hero__lede {
    font-size: 17px;
  }

  .page-home .home-steps__list {
    max-width: 100%;
  }
}

@media (min-width: 920px) {
  .page-home .home-download__grid {
    grid-template-columns: 1.02fr 1fr;
    gap: 56px;
  }

  .page-home .home-download__shot {
    order: 1;
  }

  .page-home .home-download__body {
    order: 2;
  }

  .page-home .home-contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-home .home-steps__head {
    margin-bottom: 30px;
  }

  .page-home .home-steps__item {
    padding: 30px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-atlas__list a,
  .page-home .home-switch__list a,
  .page-home .index-list__link,
  .page-home .home-switch__summary,
  .page-home .home-atlas__summary {
    transition: none;
  }

  .page-home .home-atlas__list a:hover,
  .page-home .home-atlas__list a:focus-visible,
  .page-home .index-list__link:hover,
  .page-home .index-list__link:focus-visible {
    transform: none;
  }
}
<<<END>>>