.page-home {
  --home-pad: clamp(20px, 4vw, 56px);
  --home-gap: clamp(24px, 4vw, 48px);
  background: var(--ink);
  color: var(--white);
}

.page-home *,
.page-home *::before,
.page-home *::after {
  box-sizing: border-box;
}

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

/* ---------- 页面上下文条 ---------- */

.page-home .home-context {
  border-bottom: 1px solid var(--line);
  background: var(--navy);
}

.page-home .home-context__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.page-home .home-context__label {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.page-home .home-context__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.page-home .home-context__nav a {
  font-size: 13px;
  color: var(--fog);
  text-decoration: none;
  transition: color var(--step) var(--ease);
}

.page-home .home-context__nav a:hover {
  color: var(--white);
}

.page-home .home-context__nav a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-home .home-context__meta {
  margin-left: auto;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fog);
}

/* ---------- 首屏 ---------- */

.page-home .home-hero {
  padding-bottom: clamp(40px, 7vw, 80px);
}

.page-home .home-masthead {
  padding: clamp(36px, 7vw, 88px) 0 clamp(26px, 4vw, 44px);
}

.page-home .home-masthead__kicker {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--fog);
}

.page-home .home-masthead__title {
  margin: 18px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  max-width: 20ch;
}

.page-home .home-masthead__lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--fog);
}

/* ---------- 拼贴块 ---------- */

.page-home .home-collage {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.page-home .home-block {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3vw, 34px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink);
  transition: background var(--step) var(--ease);
}

.page-home .home-block:hover {
  background: var(--paper);
}

.page-home .home-block:focus-within {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-home .home-block__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--fog);
}

.page-home .home-block__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 800;
  line-height: 1.4;
}

.page-home .home-block__title--lg {
  font-size: clamp(22px, 3.4vw, 32px);
}

.page-home .home-block__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--fog);
  max-width: 46ch;
}

.page-home .home-block__media {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.page-home .home-block__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.26;
}

.page-home .home-block__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(6, 8, 12, 0.4) 0%, rgba(6, 8, 12, 0.9) 58%, var(--ink) 100%);
}

.page-home .home-block--lead > *:not(.home-block__media) {
  position: relative;
  z-index: 1;
}

.page-home .home-block--lead {
  justify-content: flex-end;
  min-height: 340px;
}

.page-home .home-figures {
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(20px, 4vw, 48px);
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .home-figures li {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-home .home-figures__num {
  font-family: var(--font-mono);
  font-size: clamp(38px, 8vw, 76px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-home .home-figures__unit {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fog);
}

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

.page-home .home-block__figure img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--line);
}

.page-home .home-block__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--fog);
}

.page-home .home-block__figure--dot img {
  max-width: 220px;
}

.page-home .home-block--version {
  background: var(--navy);
  justify-content: center;
}

.page-home .home-version__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(34px, 6vw, 54px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.page-home .home-version__status {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--fog);
}

.page-home .home-block--screen {
  justify-content: center;
}

.page-home .home-big {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(44px, 7vw, 68px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--white);
}

/* ---------- 通用区块头 ---------- */

.page-home .home-sec {
  padding: clamp(56px, 9vw, 104px) 0;
}

.page-home .home-sec--navy {
  background: var(--navy);
}

.page-home .home-head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-home .home-head__index {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--fog);
}

.page-home .home-head__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.28;
  letter-spacing: -0.005em;
}

.page-home .home-head__lede {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--fog);
}

/* ---------- 模块索引 ---------- */

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

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

.page-home .home-path__link {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: clamp(20px, 3vw, 30px) 4px;
  color: inherit;
  text-decoration: none;
  transition: background var(--step) var(--ease);
}

.page-home .home-path__link:hover {
  background: var(--paper);
}

.page-home .home-path__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-home .home-path__no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--fog);
}

.page-home .home-path__title {
  font-family: var(--font-head);
  font-size: clamp(18px, 2.6vw, 23px);
  font-weight: 800;
  line-height: 1.4;
}

.page-home .home-path__desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--fog);
}

.page-home .home-path__go {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--white);
  border-bottom: 1px solid var(--line);
  justify-self: start;
  padding-bottom: 3px;
}

.page-home .home-path__link:hover .home-path__go {
  border-bottom-color: var(--white);
}

/* ---------- 更新节奏 ---------- */

.page-home .home-cadence {
  display: grid;
  gap: var(--home-gap);
}

.page-home .home-cadence__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-cadence__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 18px;
  align-items: baseline;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-home .home-cadence__item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-home .home-cadence__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--white);
}

.page-home .home-cadence__label {
  font-size: 15px;
  font-weight: 500;
}

.page-home .home-cadence__desc {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.85;
  color: var(--fog);
}

.page-home .home-diff {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: clamp(20px, 3vw, 30px);
}

.page-home .home-diff__tag {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-home .home-diff__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .home-diff__list li {
  position: relative;
  padding-left: 20px;
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.85;
}

.page-home .home-diff__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 1px;
  background: var(--line);
}

.page-home .home-diff__foot {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--fog);
}

/* ---------- 小屏速览 ---------- */

.page-home .home-screen {
  display: grid;
  gap: var(--home-gap);
}

.page-home .home-screen__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-screen__list li {
  padding: 15px 0;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.85;
  color: var(--white);
}

.page-home .home-screen__list li:last-child {
  border-bottom: 1px solid var(--line);
}

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

.page-home .home-screen__figure img {
  width: 100%;
  max-width: 300px;
  height: auto;
  display: block;
  border: 1px solid var(--line);
}

.page-home .home-screen__figure figcaption {
  margin-top: 12px;
  max-width: 320px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--fog);
}

/* ---------- 数据边界 ---------- */

.page-home .home-boundary__text {
  max-width: 62ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--fog);
}

.page-home .home-boundary__text + .home-boundary__text {
  margin-top: 1.5em;
}

.page-home .home-next {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-home .home-next a {
  font-size: 14px;
  color: var(--fog);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
  transition: color var(--step) var(--ease), border-color var(--step) var(--ease);
}

.page-home .home-next a:hover {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-home .home-next a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 桌面拼贴与栅格 ---------- */

@media (min-width: 800px) {
  .page-home .home-path__link {
    grid-template-columns: 60px minmax(0, 3fr) minmax(0, 5fr) auto;
    align-items: baseline;
    gap: 0 clamp(18px, 3vw, 36px);
    padding-left: 12px;
    padding-right: 12px;
  }

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

  .page-home .home-path__go {
    justify-self: end;
  }
}

@media (min-width: 900px) {
  .page-home .home-collage {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .home-block--lead {
    grid-column: span 7;
    grid-row: span 2;
    min-height: 460px;
  }

  .page-home .home-block--heat {
    grid-column: span 5;
  }

  .page-home .home-block--version {
    grid-column: span 5;
  }

  .page-home .home-block--ring {
    grid-column: span 5;
  }

  .page-home .home-block--screen {
    grid-column: span 7;
  }

  .page-home .home-cadence {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

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

  .page-home .home-screen__figure {
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home * {
    transition: none !important;
  }
}