.page-home {
  position: relative;
  overflow-x: clip;
}

.page-home::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: min(760px, 92vh);
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: var(--grid) var(--grid);
  opacity: .3;
  -webkit-mask-image: radial-gradient(ellipse 95% 78% at 50% 0%, #000 16%, transparent 76%);
  mask-image: radial-gradient(ellipse 95% 78% at 50% 0%, #000 16%, transparent 76%);
  pointer-events: none;
  z-index: 0;
}

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

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

/* ---------- 首屏控制面板 ---------- */

.page-home .hero {
  padding-top: clamp(26px, 6vw, 68px);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-home .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 52px);
  align-items: start;
}

.page-home .hero-coord {
  margin: 0 0 20px;
  padding-left: 14px;
  position: relative;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-home .hero-coord::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--cyan);
}

.page-home .hero-title {
  margin: 0 0 22px;
  font-size: clamp(2rem, 8vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--text);
}

.page-home .hero-title-em {
  display: block;
  color: var(--cyan);
}

.page-home .hero-lede {
  max-width: 44ch;
  margin: 0 0 24px;
  font-size: clamp(1rem, 1.6vw, 1.08rem);
  line-height: 1.9;
  color: var(--text-soft);
}

.page-home .hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

.page-home .hero-panel {
  margin: 0;
  padding: 14px;
}

.page-home .hero-panel .media {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-home .hero-panel .media-caption {
  margin: 12px 4px 4px;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--muted);
}

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

.page-home .entry-pill {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: var(--ink-850);
  color: var(--text);
  font-size: .93rem;
  text-decoration: none;
  transition: border-color .25s ease, color .25s ease, transform .25s ease;
}

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

/* ---------- 窄栏目录 ---------- */

.page-home .dir-list {
  margin-top: clamp(36px, 6vw, 64px);
}

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

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

.page-home .dir-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 18px 6px;
  color: var(--text);
  text-decoration: none;
  transition: background-color .25s ease, padding-left .25s ease;
}

.page-home .dir-link:hover,
.page-home .dir-link:focus-visible {
  background: linear-gradient(90deg, var(--cyan-dim), transparent 72%);
  padding-left: 16px;
}

.page-home .dir-index {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-home .dir-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-home .dir-text strong {
  font-size: 1.04rem;
  font-weight: 650;
}

.page-home .dir-text em {
  font-style: normal;
  font-size: .85rem;
  line-height: 1.65;
  color: var(--muted);
}

.page-home .dir-arrow {
  color: var(--muted);
  transition: transform .25s ease, color .25s ease;
}

.page-home .dir-link:hover .dir-arrow,
.page-home .dir-link:focus-visible .dir-arrow {
  color: var(--cyan);
  transform: translateX(4px);
}

/* ---------- 通用区块 ---------- */

.page-home .blk {
  padding: clamp(52px, 8vw, 104px) 0;
}

.page-home .blk-head {
  max-width: 68ch;
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-home .blk-title {
  margin: 12px 0 14px;
  font-size: clamp(1.5rem, 3.6vw, 2.35rem);
  line-height: 1.28;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--text);
}

.page-home .blk-lede {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-home .col-main,
.page-home .col-side {
  min-width: 0;
  grid-column: auto;
}

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

.page-home .media-figure .media {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-home .media-figure .media-caption {
  margin-top: 12px;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 01 记录 ---------- */

.page-home .facts {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
}

.page-home .fact-num {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-home .fact-label {
  font-size: .86rem;
  color: var(--text);
}

.page-home .fact p {
  margin: 6px 0 0;
  font-size: .84rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .side-panel {
  padding: 24px;
  margin: 0 0 18px;
}

.page-home .side-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-home .side-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-home .side-list li {
  position: relative;
  padding-left: 18px;
  font-size: .89rem;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-home .side-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--line);
}

.page-home .side-note {
  margin: 0;
  padding-left: 16px;
  border-left: 1px solid var(--line);
  font-size: .82rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 03 版本时间轴 ---------- */

.page-home .blk-version {
  background:
    radial-gradient(120% 80% at 12% 0%, rgba(79, 227, 208, .07), transparent 60%),
    var(--ink-850);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .version-art {
  margin: 0 0 30px;
}

.page-home .version-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 5 / 2;
  position: relative;
}

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

.page-home .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
}

.page-home .filter-btn {
  padding: 8px 16px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: .73rem;
  letter-spacing: .05em;
  cursor: pointer;
  transition: background-color .25s ease, border-color .25s ease, color .25s ease;
}

.page-home .filter-btn:hover,
.page-home .filter-btn:focus-visible {
  border-color: var(--cyan-soft);
  color: var(--cyan-soft);
}

.page-home .filter-btn[aria-pressed="true"] {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--ink-900);
}

.page-home .timeline {
  list-style: none;
  margin: 0 0 32px;
  padding: 0 0 0 26px;
  position: relative;
}

.page-home .timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--line);
}

.page-home .timeline-item {
  position: relative;
  min-width: 0;
  padding: 0 0 26px 4px;
}

.page-home .timeline-node {
  position: absolute;
  left: -26px;
  top: 7px;
  width: 12px;
  height: 12px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--ink-850);
  border: 1px solid var(--line);
  transition: border-color .3s ease, box-shadow .3s ease, background-color .3s ease;
}

.page-home .timeline-item:hover .timeline-node,
.page-home .timeline-item:focus-within .timeline-node,
.page-home .timeline-item[data-state="active"] .timeline-node {
  border: 2px solid var(--cyan);
  background: var(--ink-800);
  box-shadow: 0 0 0 4px var(--cyan-dim);
}

.page-home .tl-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-home .tl-when {
  font-family: var(--font-mono);
  font-size: .71rem;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-home .tl-title {
  margin: 0 0 6px;
  font-size: 1.08rem;
  font-weight: 650;
  line-height: 1.5;
  color: var(--text);
}

.page-home .tl-sum {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .tl-note {
  margin: 8px 0 0;
  font-size: .85rem;
  line-height: 1.8;
  color: var(--muted);
  opacity: .58;
  transform: translateY(2px);
  transition: opacity .3s ease, transform .3s ease, color .3s ease;
}

.page-home .timeline-item:hover .tl-note,
.page-home .timeline-item:focus-within .tl-note {
  opacity: 1;
  transform: translateY(0);
  color: var(--cyan-soft);
}

/* ---------- 04 帮助区 ---------- */

.page-home .help-grid {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .help-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
}

.page-home .help-card--key {
  border-color: rgba(79, 227, 208, .5);
  background:
    radial-gradient(120% 90% at 0% 0%, var(--cyan-dim), transparent 62%),
    var(--ink-800);
}

.page-home .help-no {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-home .help-card h3 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 650;
  color: var(--text);
}

.page-home .help-card p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .help-card .chip {
  align-self: flex-start;
  margin-top: 4px;
}

.page-home .help-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 2px;
  font-size: .95rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 227, 208, .4);
  transition: color .25s ease, border-color .25s ease;
}

.page-home .help-link:hover,
.page-home .help-link:focus-visible {
  color: var(--cyan-soft);
  border-color: var(--cyan-soft);
}

/* ---------- 05 反馈 ---------- */

.page-home .fb-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-bottom: 30px;
}

.page-home .fb-card {
  padding: clamp(24px, 3.4vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--ink-850);
}

.page-home .fb-card--lib {
  background:
    radial-gradient(130% 100% at 0% 0%, var(--cyan-dim), transparent 62%),
    var(--ink-850);
  border-color: rgba(79, 227, 208, .38);
}

.page-home .fb-card--svc {
  background:
    radial-gradient(130% 100% at 100% 0%, var(--orange-dim), transparent 62%),
    var(--ink-850);
  border-color: rgba(255, 138, 61, .38);
}

.page-home .fb-card h3 {
  margin: 0 0 12px;
  font-size: 1.14rem;
  font-weight: 700;
  color: var(--text);
}

.page-home .fb-card p {
  margin: 0 0 18px;
  font-size: .92rem;
  line-height: 1.82;
  color: var(--muted);
}

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

.page-home .fb-tag {
  padding: 6px 12px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: var(--ink-900);
  font-family: var(--font-mono);
  font-size: .71rem;
  letter-spacing: .04em;
  color: var(--text-soft);
}

/* ---------- 06 四步上手 ---------- */

.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
}

.page-home .step-no {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--cyan);
  padding-top: 3px;
}

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

.page-home .step-body h3 {
  margin: 0 0 6px;
  font-size: 1.04rem;
  font-weight: 650;
  color: var(--text);
}

.page-home .step-body p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 07 移动端 ---------- */

.page-home .blk-mobile .col-main .blk-title {
  margin-top: 12px;
}

.page-home .blk-mobile .prose p {
  margin: 0 0 1em;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-home .blk-mobile .prose p:last-child {
  margin-bottom: 0;
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-home .facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 640px) {
  .page-home .help-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-home .fb-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }

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

  .page-home .split--media {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  }

  .page-home .split--even {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-home .dir-link {
    padding: 22px 6px;
  }

  .page-home .dir-text em {
    font-size: .88rem;
  }
}

@media (min-width: 1040px) {
  .page-home .help-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-home .step {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }
}

@media (hover: none) {
  .page-home .tl-note {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
  }

  .page-home .tl-note {
    opacity: 1;
    transform: none;
  }
}