.page-home {
  --home-rail: 224px;
  --home-gap: clamp(28px, 4vw, 64px);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-home .home-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(44px, 6.5vw, 92px) clamp(40px, 5.5vw, 76px);
  background:
    radial-gradient(120% 96% at 92% -14%, rgba(75, 50, 195, .14), transparent 60%),
    radial-gradient(90% 76% at 4% 6%, rgba(31, 91, 255, .12), transparent 62%),
    var(--paper);
  border-bottom: 1px solid var(--rule);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  right: -18%;
  top: -36%;
  width: min(760px, 86vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: repeating-radial-gradient(circle at 50% 50%, rgba(16, 183, 176, .18) 0 1px, transparent 1px 46px);
  opacity: .75;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 28%, transparent 72%);
  mask-image: radial-gradient(circle at 50% 50%, #000 28%, transparent 72%);
}

.page-home .home-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 54px);
}

.page-home .home-hero__title {
  margin: 16px 0 0;
  font-size: clamp(30px, 4.6vw, 52px);
  line-height: 1.16;
  letter-spacing: -.02em;
  font-weight: 700;
  color: var(--ink);
  text-wrap: balance;
}

.page-home .home-hero__sub {
  margin: 20px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-home .home-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px clamp(20px, 4vw, 40px);
  margin: 32px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
}

.page-home .home-hero__stats > div {
  min-width: 92px;
}

.page-home .home-hero__stats dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-2);
}

.page-home .home-hero__stats dd {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-home .home-hero__main {
  display: grid;
  gap: clamp(22px, 3vw, 30px);
  min-width: 0;
}

.page-home .home-hero__lead {
  margin: 0;
  max-width: 60ch;
}

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

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

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

/* 首屏入口卡 */

.page-home .entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .entry {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 18px 18px 20px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-s);
  text-decoration: none;
  color: var(--ink);
  box-shadow: var(--paper-edge);
  transition: transform .24s ease, border-color .24s ease;
}

.page-home .entry:hover,
.page-home .entry:focus-visible {
  transform: translateY(-2px);
  border-color: var(--blue);
}

.page-home .entry--pin {
  background-image: linear-gradient(180deg, var(--orange-soft), transparent 62%);
}

.page-home .entry--pin::after {
  content: "";
  position: absolute;
  top: 14px;
  right: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
}

.page-home .entry__tag {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--blue);
}

.page-home .entry__title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-home .entry__note {
  font-size: 14px;
  line-height: 1.68;
  color: var(--ink-2);
}

/* ---------- 章节流 ---------- */

.page-home .flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 38px);
  padding-block: clamp(52px, 7vw, 100px);
}

.page-home .flow__rail {
  border-top: 1px solid var(--rule);
  padding-top: 12px;
}

.page-home .rail-list {
  list-style: none;
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-home .rail-list a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  line-height: 1.5;
  white-space: nowrap;
  color: var(--ink-2);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 0 var(--r-s) var(--r-s) 0;
  transition: color .2s ease, background .2s ease, border-color .2s ease;
}

.page-home .rail-list a:hover {
  color: var(--ink);
  background: var(--blue-soft);
}

.page-home .rail-list a[aria-current="true"] {
  color: var(--blue);
  font-weight: 700;
  border-left-color: var(--blue);
  background: var(--blue-soft);
}

.page-home .rail-list__n {
  margin-right: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ink-2);
}

.page-home .rail-list a[aria-current="true"] .rail-list__n {
  color: var(--blue);
}

.page-home .flow__body {
  display: grid;
  gap: clamp(52px, 7.5vw, 96px);
  min-width: 0;
}

.page-home .chapter {
  min-width: 0;
  padding-top: 26px;
  border-top: 1px solid var(--rule);
  scroll-margin-top: 96px;
}

.page-home .chapter__head {
  display: grid;
  gap: 10px;
}

.page-home .chapter__num {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--blue);
}

.page-home .chapter__title {
  margin: 0;
  font-size: clamp(24px, 3.1vw, 34px);
  line-height: 1.3;
  letter-spacing: -.01em;
  font-weight: 700;
  color: var(--ink);
  text-wrap: balance;
}

.page-home .chapter__lead {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--ink-2);
}

.page-home .chapter__foot {
  margin-top: 26px;
}

/* ---------- 01 收藏 ---------- */

.page-home .keep-grid {
  display: grid;
  gap: 24px;
  margin-top: 30px;
}

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

.page-home .keep-steps li {
  padding: 16px 18px 18px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-s);
  box-shadow: var(--paper-edge);
}

.page-home .keep-steps__n {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-home .keep-steps h3 {
  margin: 8px 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-home .keep-steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ---------- 02 订阅专区 ---------- */

.page-home .sub-panel {
  position: relative;
  overflow: hidden;
  margin-top: 30px;
  padding: clamp(22px, 3vw, 34px);
  border-radius: var(--r);
  background: var(--cloud);
  color: #fff;
}

.page-home .sub-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(80% 62% at 100% 0%, rgba(255, 255, 255, .26), transparent 70%);
  pointer-events: none;
}

.page-home .sub-panel__eyebrow {
  position: relative;
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: rgba(255, 255, 255, .78);
}

.page-home .sub-panel__title {
  position: relative;
  margin: 12px 0 0;
  max-width: 34ch;
  font-size: clamp(19px, 2.3vw, 26px);
  line-height: 1.45;
  font-weight: 700;
  color: #fff;
}

.page-home .sub-panel__note {
  position: relative;
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(255, 255, 255, .82);
}

.page-home .sub-grid {
  display: grid;
  gap: 24px;
  margin-top: 24px;
}

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

.page-home .sub-card {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 16px 16px 15px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-s);
  box-shadow: var(--paper-edge);
}

.page-home .sub-card__idx {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--ink-2);
}

.page-home .sub-card__name {
  margin: 2px 0 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-home .sub-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-home .pin-btn {
  justify-self: start;
  margin-top: 6px;
}

.page-home .pin-btn[aria-pressed="true"] {
  background: var(--orange-soft);
  border-color: var(--orange);
  color: var(--ink);
}

.page-home .sub-figure {
  margin: 0;
}

/* ---------- 03 换设备 ---------- */

.page-home .switch-panel {
  margin-top: 30px;
  padding: clamp(22px, 3vw, 34px);
  border-radius: var(--r);
  background: var(--night);
  color: #E9EFFA;
}

.page-home .switch-steps {
  list-style: none;
  display: grid;
  gap: 20px;
  margin: 0;
  padding: 0;
}

.page-home .switch-steps li {
  display: grid;
  gap: 8px;
  padding-top: 16px;
  border-top: 2px solid rgba(233, 239, 250, .18);
}

.page-home .switch-steps__n {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-home .switch-steps h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
}

.page-home .switch-steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(233, 239, 250, .74);
}

/* ---------- 04 版本时间轴 ---------- */

.page-home .timeline {
  display: flex;
  gap: 14px;
  margin-top: 30px;
  padding-bottom: 16px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-home .tl-item {
  flex: 0 0 auto;
  width: 228px;
  scroll-snap-align: start;
  padding: 18px 16px 18px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--rule);
  border-radius: 0 0 var(--r-s) var(--r-s);
  box-shadow: var(--paper-edge);
}

.page-home .tl-item--core {
  border-top-color: var(--blue);
}

.page-home .tl-item--sync {
  border-top-color: var(--cyan);
}

.page-home .tl-item--pin {
  border-top-color: var(--orange);
}

.page-home .tl-item__idx {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--ink-2);
}

.page-home .tl-item__title {
  margin: 9px 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-home .tl-item__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

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

.page-home .versions-figure {
  margin: 24px 0 0;
}

/* ---------- 05 常见场景 ---------- */

.page-home .scene-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-home .scene-list li {
  border-bottom: 1px solid var(--rule);
}

.page-home .scene-list a {
  display: grid;
  gap: 4px;
  padding: 17px 6px;
  text-decoration: none;
  color: inherit;
  transition: background .2s ease, padding-left .2s ease;
}

.page-home .scene-list a:hover,
.page-home .scene-list a:focus-visible {
  background: var(--blue-soft);
  padding-left: 14px;
}

.page-home .scene-list__q {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

.page-home .scene-list__a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--ink-2);
}

/* ---------- 06 更新与服务 ---------- */

.page-home .support-grid {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.page-home .support-card {
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-s);
  box-shadow: var(--paper-edge);
}

.page-home .support-card--accent {
  border-left: 3px solid var(--orange);
  background-image: linear-gradient(180deg, var(--orange-soft), transparent 58%);
}

.page-home .support-card__eyebrow {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--blue);
}

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

.page-home .support-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-2);
}

.page-home .support-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--rule);
}

.page-home .support-card__list strong {
  color: var(--ink);
  font-weight: 700;
}

.page-home .support-card .btn-row {
  margin-top: 18px;
}

/* ---------- 底部版本入口 ---------- */

.page-home .closing {
  margin-top: clamp(32px, 5vw, 68px);
  padding-block: clamp(42px, 5.5vw, 72px);
  background: var(--night);
  color: #E9EFFA;
}

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

.page-home .closing .eyebrow {
  color: var(--cyan);
}

.page-home .closing h2 {
  margin: 12px 0 0;
  font-size: clamp(22px, 2.7vw, 30px);
  line-height: 1.36;
  font-weight: 700;
  color: #fff;
  text-wrap: balance;
}

.page-home .closing p {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 239, 250, .74);
}

.page-home .closing .btn--ghost {
  color: #E9EFFA;
  border-color: rgba(233, 239, 250, .34);
}

.page-home .closing .btn--ghost:hover,
.page-home .closing .btn--ghost:focus-visible {
  border-color: var(--cyan);
  color: #fff;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-home .entry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-home .keep-steps li:nth-child(2) {
    margin-left: 16px;
  }

  .page-home .scene-list a {
    grid-template-columns: minmax(0, 1fr) 232px;
    align-items: center;
    gap: 22px;
  }

  .page-home .scene-list__a {
    text-align: right;
  }
}

@media (min-width: 860px) {
  .page-home .keep-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

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

  .page-home .closing__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 44px;
  }
}

@media (min-width: 900px) {
  .page-home .switch-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-home .sub-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    align-items: start;
  }
}

@media (min-width: 940px) {
  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(40px, 5vw, 76px);
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-home .flow {
    grid-template-columns: var(--home-rail) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 84px);
    align-items: start;
  }

  .page-home .flow__rail {
    position: sticky;
    top: 104px;
    padding-bottom: 24px;
  }

  .page-home .rail-list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-home .rail-list a {
    white-space: normal;
    padding-left: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .entry,
  .page-home .rail-list a,
  .page-home .scene-list a {
    transition: none;
  }

  .page-home .entry:hover,
  .page-home .entry:focus-visible {
    transform: none;
  }
}