/* ============================================================
   page-home — 首页专属样式（全部限定在 .page-home 内）
   ============================================================ */

.page-home {
  --rail-w: 268px;
  position: relative;
}

/* ---------- 外层骨架：左轨道 + 正文 ---------- */
.page-home .home-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-home .home-rail {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 26, 23, 0.96), rgba(7, 12, 11, 0.78));
  padding: 18px 18px 20px;
}

.page-home .rail-version {
  font-family: var(--f-mono);
  font-size: 42px;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--gold-lite);
  margin: 8px 0 10px;
}

.page-home .rail-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
  margin: 0 0 18px;
  max-width: 34ch;
}

.page-home .home-rail .toc-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.page-home .home-rail .toc-list a {
  display: inline-block;
  padding: 6px 11px;
  border: 1px solid var(--line);
  color: var(--mute);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-home .home-rail .toc-list a:hover,
.page-home .home-rail .toc-list a[aria-current],
.page-home .home-rail .toc-list a.is-active {
  color: var(--jade);
  border-color: var(--bronze);
  background: rgba(31, 111, 92, 0.14);
}

@media (min-width: 1024px) {
  .page-home .home-shell {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-home .home-rail {
    position: sticky;
    top: 108px;
    align-self: start;
    border: 0;
    border-right: 1px solid var(--line);
    background: none;
    padding: 0 26px 0 0;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
  }

  .page-home .rail-version {
    font-size: 52px;
  }

  .page-home .home-rail .toc-list {
    flex-direction: column;
    gap: 4px;
  }

  .page-home .home-rail .toc-list a {
    display: block;
    border: 0;
    border-left: 2px solid transparent;
    padding: 7px 8px 7px 13px;
    background: none;
  }

  .page-home .home-rail .toc-list a:hover,
  .page-home .home-rail .toc-list a[aria-current],
  .page-home .home-rail .toc-list a.is-active {
    border-left-color: var(--jade);
    background: rgba(31, 111, 92, 0.12);
  }
}

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

/* ---------- 章节头部通用件 ---------- */
.page-home .sec-head {
  margin-bottom: 26px;
}

.page-home .sec-head h2 {
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(25px, 4vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 10px 0 12px;
  max-width: 24ch;
}

.page-home .sec-lede {
  color: var(--mute);
  font-size: 16px;
  line-height: 1.8;
  max-width: 62ch;
  margin: 0;
}

.page-home .sec-foot {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
}

.page-home .sec-foot a {
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 182, 140, 0.35);
  padding-bottom: 1px;
}

.page-home .sec-foot a:hover {
  border-bottom-color: var(--gold);
  color: var(--gold-lite);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  padding-block: 32px 44px;
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: -120px 0 auto 0;
  height: 560px;
  background: radial-gradient(60% 100% at 70% 0%, rgba(31, 111, 92, 0.38), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.page-home .home-hero > * {
  position: relative;
  z-index: 1;
}

.page-home .hero-grid {
  display: grid;
  gap: 30px;
}

.page-home .hero-title {
  margin: 14px 0 18px;
}

.page-home .hero-title-main {
  display: block;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(33px, 7.6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--white);
}

.page-home .hero-title-sub {
  display: block;
  margin-top: 10px;
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(19px, 3vw, 27px);
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-home .hero-lede {
  color: var(--mute);
  font-size: 17px;
  line-height: 1.8;
  max-width: 56ch;
  margin: 0;
}

.page-home .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 26px 0 24px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.page-home .stat-num {
  display: block;
  font-family: var(--f-mono);
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1;
  color: var(--gold-lite);
}

.page-home .stat-label {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--mute);
}

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

.page-home .hero-card {
  position: relative;
  border: 1px solid var(--line);
  background: var(--rock);
  padding: 14px;
  min-width: 0;
}

.page-home .hero-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--ink);
}

.page-home .hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
  filter: saturate(0.92) contrast(1.05);
}

.page-home .hero-tag {
  position: absolute;
  left: -8px;
  bottom: 22px;
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
    gap: 44px;
  }

  .page-home .hero-card {
    transform: translateY(30px);
  }
}

/* ---------- 栏目导览 ---------- */
.page-home .column-layout {
  display: grid;
  gap: 22px;
}

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

.page-home .col-figure .figure-media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--rock);
}

.page-home .col-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.88;
}

@media (min-width: 900px) {
  .page-home .column-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 34px;
    align-items: start;
  }
}

.page-home .col-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 560px) {
  .page-home .col-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-home .col-cell {
  min-width: 0;
}

.page-home .col-cell a {
  display: block;
  height: 100%;
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--bronze);
  background: var(--rock);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-home .col-cell a:hover {
  border-left-color: var(--jade);
  background: rgba(31, 111, 92, 0.14);
  transform: translateX(4px);
}

.page-home .col-idx {
  display: block;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-home .col-name {
  display: block;
  margin: 8px 0 6px;
  font-family: var(--f-head);
  font-weight: 700;
  font-size: 18px;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-home .col-desc {
  display: block;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mute);
}

.page-home .col-meta {
  display: block;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--jade);
}

/* ---------- 权益速览 ---------- */
.page-home .tier-section {
  border-top: 1px solid var(--line);
  padding-top: 34px;
}

.page-home .tier-table td {
  font-size: 14px;
  line-height: 1.7;
}

.page-home .tier-table tbody tr:nth-child(even) {
  background: rgba(31, 111, 92, 0.055);
}

.page-home .tier-table tbody tr:hover {
  background: rgba(63, 182, 140, 0.13);
}

.page-home .tier-chip {
  display: inline-block;
  min-width: 52px;
  padding: 4px 10px;
  border: 1px solid var(--mute);
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-align: center;
}

.page-home .tier-table tbody tr:nth-child(1) .tier-chip {
  border-color: var(--mute);
  color: var(--mute);
}

.page-home .tier-table tbody tr:nth-child(2) .tier-chip {
  border-color: var(--bronze);
  color: var(--jade);
}

.page-home .tier-table tbody tr:nth-child(3) .tier-chip {
  border-color: var(--jade);
  color: var(--jade);
}

.page-home .tier-table tbody tr:nth-child(4) .tier-chip {
  border-color: var(--gold);
  color: var(--gold);
}

.page-home .tier-table tbody tr:nth-child(5) .tier-chip {
  border-color: var(--gold-lite);
  color: var(--gold-lite);
  background: rgba(200, 162, 74, 0.12);
}

/* ---------- 设备端分流 ---------- */
.page-home .device-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.page-home .device-panel {
  min-width: 0;
}

.page-home .device-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 900px) {
  .page-home .device-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 34px;
    align-items: start;
  }
}

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

.page-home .device-figure .figure-media {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--rock);
}

.page-home .figure-media.is-tall {
  aspect-ratio: 9 / 11;
}

.page-home .figure-media.is-wide {
  aspect-ratio: 3 / 2;
}

.page-home .device-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
}

.page-home .device-copy h3 {
  font-family: var(--f-head);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 25px);
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--white);
  margin: 0 0 12px;
}

.page-home .device-copy p {
  color: var(--mute);
  font-size: 15.5px;
  line-height: 1.8;
  margin: 0 0 16px;
}

.page-home .device-steps {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .device-steps li {
  position: relative;
  padding: 12px 14px 12px 46px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--bronze);
  background: rgba(16, 26, 23, 0.72);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--white);
}

.page-home .device-steps li .mono {
  position: absolute;
  left: 14px;
  top: 12px;
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--gold);
}

.page-home .device-note {
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--mute);
  margin: 0;
}

/* ---------- 版本时间轴 ---------- */
.page-home .home-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--line);
  display: grid;
  gap: 22px;
}

.page-home .home-timeline .tl-item {
  position: relative;
  padding: 0 0 0 20px;
}

.page-home .home-timeline .tl-item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--ink);
  border: 1px solid var(--jade);
  box-shadow: inset 0 0 0 2px var(--ink), inset 0 0 0 3px rgba(63, 182, 140, 0.55);
}

.page-home .tl-ver {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
  margin: 0 0 6px;
}

.page-home .home-timeline h3 {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 0 0 6px;
}

.page-home .home-timeline p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mute);
}

/* ---------- 客服路径 ---------- */
.page-home .support-steps {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .support-steps li {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--line);
  background: var(--rock);
}

.page-home .support-steps li::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--bronze), transparent);
}

.page-home .step-num {
  display: block;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-home .support-steps h3 {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: 18px;
  color: var(--white);
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.page-home .support-steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mute);
}

@media (min-width: 780px) {
  .page-home .support-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

.page-home .support-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin: 0 0 14px;
  font-size: 15px;
  color: var(--white);
}

.page-home .support-label {
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.page-home .support-mail,
.page-home .support-phone {
  font-family: var(--f-mono);
  font-size: 15px;
  color: var(--gold-lite);
  word-break: break-all;
}

.page-home .support-hours {
  font-size: 13px;
  color: var(--mute);
}

.page-home .support-hint {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.78;
  color: var(--mute);
}

/* ---------- 返回顶部在窄屏的落点 ---------- */
@media (max-width: 640px) {
  .page-home .stat-label {
    font-size: 12px;
  }

  .page-home .home-rail .toc-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .page-home .home-rail .toc-list li {
    flex: 0 0 auto;
  }

  .page-home .hero-actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .col-cell a,
  .page-home .home-rail .toc-list a,
  .page-home .sec-foot a {
    transition: none;
  }

  .page-home .col-cell a:hover {
    transform: none;
  }

  .page-home .hero-card {
    transform: none;
  }
}
</main>