.page-home {
  --home-gap: clamp(1.25rem, 3vw, 2.5rem);
  --home-pad: clamp(2.6rem, 6vw, 4.8rem);
  background: var(--ink);
  color: var(--paper);
}

.page-home .home-hero,
.page-home .home-paths,
.page-home .home-help,
.page-home .home-android,
.page-home .home-updates {
  padding: var(--home-pad) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .home-contact {
  padding: var(--home-pad) 0;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  background:
    radial-gradient(circle at 78% 10%, rgba(85, 230, 210, 0.10), transparent 58%),
    radial-gradient(circle at 10% 90%, rgba(242, 184, 75, 0.07), transparent 55%),
    var(--ink);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(42, 58, 74, 0.42) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 58, 74, 0.42) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent 80%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent 80%);
  pointer-events: none;
}

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

.page-home .home-rail {
  display: grid;
  gap: 0.9rem;
  align-content: start;
}

.page-home .home-rail__eyebrow {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-home .home-rail__toc {
  display: grid;
  gap: 0.1rem;
  border-left: 1px solid var(--line);
}

.page-home .home-rail__toc a {
  display: block;
  margin-left: -1px;
  padding: 0.45rem 0 0.45rem 0.85rem;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .home-rail__toc a:hover {
  color: var(--paper);
  border-left-color: var(--cyan);
}

.page-home .home-rail__toc a[aria-current="true"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

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

.page-home .home-rail__cta {
  justify-self: start;
}

.page-home .home-hero__main {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  background: linear-gradient(158deg, var(--surface), var(--ink) 72%);
  padding: clamp(1.35rem, 4vw, 3rem);
}

.page-home .home-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  margin: 0;
  opacity: 0.34;
  pointer-events: none;
}

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

.page-home .home-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(198deg, rgba(11, 22, 34, 0.1), rgba(11, 22, 34, 0.94));
}

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

.page-home .home-hero__title {
  margin: 0 0 1.1rem;
  font-size: clamp(2.3rem, 9vw, 5.2rem);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.page-home .home-hero__title span {
  display: block;
}

.page-home .home-hero__title-accent {
  color: var(--cyan);
}

.page-home .home-hero__lede {
  margin: 0;
  max-width: 48ch;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.85;
}

.page-home .entry-list {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.4rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line-soft);
  background: var(--line-soft);
}

.page-home .entry {
  background: var(--surface);
}

.page-home .entry__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
  align-items: center;
  padding: 0.95rem 1rem;
  color: inherit;
  text-decoration: none;
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .entry__link:hover {
  background: var(--raise);
  transform: translateY(-2px);
}

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

.page-home .entry__key {
  font-size: 1.55rem;
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
}

.page-home .entry__text {
  display: grid;
  gap: 0.2rem;
  min-width: 0;
}

.page-home .entry__label {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-home .entry__meta {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.page-home .entry__arrow {
  display: none;
  font-family: var(--font-mono);
  color: var(--amber);
}

/* ---------- 三条路径 ---------- */
.page-home .home-paths .section-head {
  margin-bottom: clamp(1.2rem, 3vw, 2rem);
}

.page-home .path-band {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: min(82vw, 330px);
  gap: 1px;
  background: var(--line-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-home .path-band__item {
  display: grid;
  gap: 0.7rem;
  align-content: start;
  padding: clamp(1.2rem, 3vw, 1.9rem);
  background: var(--surface);
  scroll-snap-align: start;
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .path-band__item:hover,
.page-home .path-band__item:focus-within {
  background: var(--raise);
  transform: translateY(-2px);
}

.page-home .path-band__no {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-home .path-band__item h3 {
  margin: 0;
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.page-home .path-band__item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.8;
}

.page-home .path-band__item a {
  justify-self: start;
  padding-bottom: 1px;
  border-bottom: 1px solid rgba(85, 230, 210, 0.35);
  color: var(--cyan);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .path-band__item a:hover {
  border-bottom-color: var(--cyan);
}

.page-home .path-band__item a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 帮助中心 ---------- */
.page-home .home-help {
  background: linear-gradient(180deg, var(--ink), rgba(16, 31, 46, 0.75));
}

.page-home .home-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.8rem);
  align-items: center;
}

.page-home .home-help__eyebrow {
  margin: 0 0 0.7rem;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-home .home-help__body h2 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.page-home .home-help__text {
  margin: 0;
  max-width: 52ch;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.85;
}

.page-home .help-groups {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.page-home .help-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.6rem;
  margin: 1.4rem 0 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line-soft);
}

.page-home .help-stats p {
  margin: 0;
  display: grid;
  gap: 0.2rem;
}

.page-home .help-stats__num {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-home .help-stats__label {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

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

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

/* ---------- 安卓版栏目与产品线 ---------- */
.page-home .home-android .section-head {
  margin-bottom: clamp(1.2rem, 3vw, 2rem);
}

.page-home .home-android__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--line-soft);
  background: var(--line-soft);
}

.page-home .home-android__panel {
  display: grid;
  gap: 1rem;
  align-content: start;
  padding: clamp(1.2rem, 3vw, 2rem);
  background: var(--surface);
}

.page-home .home-android__panel h3 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.page-home .home-android__media {
  margin: 0 0 0.2rem;
  max-width: 320px;
}

.page-home .module-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-home .module-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.8rem;
  align-items: baseline;
  padding: 0.6rem 0.8rem;
  border-left: 2px solid var(--line);
  background: rgba(23, 43, 61, 0.5);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .module-list li:hover {
  border-left-color: var(--cyan);
  background: var(--raise);
}

.page-home .module-list__no {
  font-size: 0.76rem;
  color: var(--amber);
  letter-spacing: 0.1em;
}

.page-home .module-list__body {
  display: grid;
  gap: 0.15rem;
  min-width: 0;
}

.page-home .module-list__body strong {
  font-size: 0.96rem;
  font-weight: 700;
}

.page-home .module-list__desc {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.page-home .line-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-home .line-list__item {
  padding: 0.9rem 0 0.95rem 1rem;
  border-left: 2px solid var(--line);
  display: grid;
  gap: 0.4rem;
  transition: border-color var(--dur) var(--ease);
}

.page-home .line-list__item:hover {
  border-left-color: var(--amber);
}

.page-home .line-list__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-home .line-list__item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-home .line-list__item a {
  justify-self: start;
  color: var(--cyan);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(85, 230, 210, 0.3);
}

.page-home .line-list__item a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 版本与更新 ---------- */
.page-home .home-updates__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.9rem;
  margin-bottom: clamp(1.2rem, 3vw, 2rem);
}

.page-home .home-updates__head h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.page-home .home-updates__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.2rem, 3vw, 2rem);
  align-items: start;
}

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

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

.page-home .timeline li {
  display: grid;
  gap: 0.25rem;
  padding: 0.85rem 1rem;
  background: var(--surface);
  transition: background var(--dur) var(--ease);
}

.page-home .timeline li:hover {
  background: var(--raise);
}

.page-home .timeline__when {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-home .timeline__what {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-home .home-updates__more {
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

/* ---------- 联系 ---------- */
.page-home .home-contact {
  background: linear-gradient(180deg, rgba(16, 31, 46, 0.9), var(--ink));
}

.page-home .home-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.page-home .home-contact__intro h2 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.page-home .home-contact__intro p {
  margin: 0 0 0.9rem;
  max-width: 46ch;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-home .home-contact__intro .btn {
  margin-top: 0.4rem;
}

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

.page-home .contact-list li {
  display: grid;
  gap: 0.3rem;
  padding: 0.95rem 1.05rem;
  background: var(--surface);
}

.page-home .contact-list__k {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-home .contact-list__v {
  color: var(--paper);
  font-size: 0.95rem;
  line-height: 1.7;
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-home .entry__link {
    grid-template-columns: auto minmax(0, 1fr) auto;
    padding: 1rem 1.15rem;
  }

  .page-home .entry__arrow {
    display: inline;
  }

  .page-home .timeline li {
    grid-template-columns: 7.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1rem;
  }
}

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .home-rail {
    position: sticky;
    top: 118px;
    grid-column: 1;
  }

  .page-home .home-hero__main {
    grid-column: 2;
  }

  .page-home .path-band {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow-x: visible;
    scroll-snap-type: none;
  }

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

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

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

  .page-home .home-contact__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }
}

@media (min-width: 1200px) {
  .page-home .home-hero__main {
    padding: clamp(2rem, 3vw, 3.2rem);
  }

  .page-home .home-updates__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }
}