/* ============ 首页 · page-home ============ */

.page-home {
  --home-space: clamp(3rem, 8vw, 6.5rem);
  --home-rail: rgba(57, 208, 216, 0.3);
  --home-glow: rgba(110, 74, 158, 0.32);
  --home-card: rgba(12, 18, 32, 0.62);
  display: block;
}

/* ---------- 上下文提示行 ---------- */
.page-home .ctx-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.8rem;
  margin: 1.2rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--fg-faint);
}
.page-home .ctx-line__dot {
  flex: 0 0 auto;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  opacity: 0.65;
}

/* ---------- 首屏封面 ---------- */
.page-home .cover {
  position: relative;
  overflow: hidden;
  padding: clamp(1.6rem, 5vw, 3.2rem) 0 var(--home-space);
}
.page-home .cover::before {
  content: "";
  position: absolute;
  top: -12%;
  right: -22%;
  bottom: auto;
  left: -22%;
  height: 118%;
  background:
    radial-gradient(58% 52% at 76% 26%, var(--home-glow), transparent 70%),
    radial-gradient(52% 48% at 14% 8%, rgba(27, 59, 111, 0.5), transparent 74%);
  pointer-events: none;
  z-index: 0;
}
.page-home .cover__orbit {
  position: absolute;
  right: -26%;
  bottom: -34%;
  width: min(78vw, 620px);
  height: auto;
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}
.page-home .cover__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.8rem, 5vw, 3rem);
}
.page-home .cover__title {
  margin: 0.7rem 0 0;
  font-family: var(--font-title);
  font-size: clamp(2rem, 9vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--mist);
}
.page-home .cover__title-sub {
  display: block;
  margin-top: 0.7rem;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(0.98rem, 3.6vw, 1.7rem);
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--cyan);
}
.page-home .cover__lede .lede {
  margin-top: 1.1rem;
  max-width: 46ch;
  color: var(--fg-dim);
}
.page-home .cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.7rem;
}
.page-home .cover__facts {
  list-style: none;
  margin: 2rem 0 0;
  padding: 1.3rem 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem 0.8rem;
}
.page-home .cover__facts li {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.page-home .cover__fact-num {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 4.6vw, 1.8rem);
  line-height: 1;
  color: var(--gold);
}
.page-home .cover__fact-label {
  font-size: 0.72rem;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--fg-faint);
}
.page-home .cover__art,
.page-home .desk-rail__art,
.page-home .ruler-block__art,
.page-home .ios__art {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
}
.page-home .cover__art .media-frame__img,
.page-home .desk-rail__art .media-frame__img,
.page-home .ruler-block__art .media-frame__img,
.page-home .ios__art .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 01 旧版视讯大厅 ---------- */
.page-home .gate {
  position: relative;
  padding: var(--home-space) 0;
}
.page-home .gate__inner {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}
.page-home .gate__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}
.page-home .gate-step {
  padding: 1rem 1.1rem 1rem 1.3rem;
  border-left: 2px solid var(--home-rail);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: linear-gradient(100deg, rgba(27, 59, 111, 0.34), rgba(27, 59, 111, 0) 86%);
}
.page-home .gate-step__num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-home .gate-step__title {
  margin: 0.4rem 0 0.45rem;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--mist);
}
.page-home .gate-step p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--fg-dim);
}
.page-home .gate__panel {
  margin-top: 1.1rem;
  padding: 1.1rem 1.2rem;
}
.page-home .gate__panel-title {
  margin: 0 0 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}
.page-home .gate__panel p:last-child {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--fg-dim);
}

/* ---------- 02 桌台编号速览 ---------- */
.page-home .desk-rail {
  position: relative;
  padding: var(--home-space) 0;
}
.page-home .desk-rail::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong) 18%, var(--line-strong) 82%, transparent);
}
.page-home .rail-legend {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.6rem;
}
.page-home .rail-legend li {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(12, 18, 32, 0.55);
}
.page-home .rail-legend__seg {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.page-home .rail-legend__label {
  font-size: 0.76rem;
  color: var(--fg-dim);
}
.page-home .desk-rail__grid {
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
  display: grid;
  gap: clamp(1.4rem, 3.5vw, 2.2rem);
}
.page-home .desk-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}
.page-home .desk-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.3rem 0.9rem;
  align-items: center;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--home-card);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}
.page-home .desk-item:hover,
.page-home .desk-item:focus-within {
  border-color: rgba(57, 208, 216, 0.55);
  background: rgba(27, 59, 111, 0.34);
  transform: translateX(3px);
}
.page-home .desk-item__code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  letter-spacing: 0.14em;
  white-space: nowrap;
  color: var(--cyan);
}
.page-home .desk-item__name {
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--fg-dim);
}
.page-home .desk-item:hover .chip,
.page-home .desk-item:focus-within .chip {
  border-color: rgba(57, 208, 216, 0.6);
  color: var(--mist);
}
.page-home .desk-rail__note {
  margin: 1.1rem 0 0;
  padding-left: 0.95rem;
  border-left: 2px solid var(--line);
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--fg-faint);
}
.page-home .section__lede {
  max-width: 62ch;
}

/* ---------- 03 分类数量刻度带 ---------- */
.page-home .ruler-block {
  position: relative;
  padding: var(--home-space) 0 0;
}
.page-home .ruler-block__head {
  max-width: 62ch;
}
.page-home .ruler-block__art {
  margin: clamp(1.4rem, 4vw, 2.4rem) 0 0;
}
.page-home .ruler-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 1.6rem 0 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--stone) transparent;
}
.page-home .ruler-track {
  list-style: none;
  margin: 0;
  padding: 0 var(--edge);
  display: flex;
  min-width: max-content;
}
.page-home .ruler-item {
  flex: 0 0 auto;
  min-width: 156px;
  padding: 0.9rem 1.3rem 0.9rem 1.1rem;
  border-left: 1px dashed var(--line-strong);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.page-home .ruler-item:last-child {
  border-right: 1px dashed var(--line-strong);
}
.page-home .ruler-item__num {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  color: var(--fg-faint);
}
.page-home .ruler-item__label {
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--fg-dim);
}
.page-home .ruler-item__count {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  line-height: 1;
  color: var(--mist);
}

/* ---------- 04 苹果设备适配 ---------- */
.page-home .ios {
  position: relative;
  padding: var(--home-space) 0;
}
.page-home .ios__inner {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}
.page-home .ios__metrics {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}
.page-home .ios__metrics li {
  display: grid;
  grid-template-columns: 5.4rem minmax(0, 1fr);
  gap: 0.8rem;
  align-items: baseline;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}
.page-home .ios__metric-num {
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.3;
  color: var(--cyan);
}
.page-home .ios__metric-label {
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--fg-dim);
}
.page-home .ios__scenes {
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  display: grid;
  gap: 0.9rem;
}
.page-home .scene {
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(110, 74, 158, 0.18), rgba(12, 18, 32, 0.4) 70%);
}
.page-home .scene__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--mist);
}
.page-home .scene p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.78;
  color: var(--fg-dim);
}

/* ---------- 05 栏目导览 ---------- */
.page-home .explore {
  padding: var(--home-space) 0 calc(var(--home-space) * 1.1);
}
.page-home .explore__grid {
  margin-top: clamp(1.5rem, 4vw, 2.4rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}
.page-home .explore-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.2rem 1.25rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--home-card);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.28s var(--ease), transform 0.28s var(--ease), background 0.28s var(--ease);
}
.page-home .explore-card:hover,
.page-home .explore-card:focus-visible {
  border-color: rgba(57, 208, 216, 0.5);
  background: rgba(27, 59, 111, 0.32);
  transform: translateY(-3px);
}
.page-home .explore-card__num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--gold);
}
.page-home .explore-card__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.08rem;
  color: var(--mist);
}
.page-home .explore-card p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.78;
  color: var(--fg-dim);
}
.page-home .explore-card__more {
  margin-top: auto;
  padding-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-home .desk-item {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }
}

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

@media (min-width: 720px) {
  .page-home .ios__scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

@media (min-width: 960px) {
  .page-home .cover__inner {
    grid-template-columns: minmax(0, 6.4fr) minmax(0, 5.6fr);
    align-items: center;
    gap: clamp(2rem, 5vw, 4.5rem);
  }
  .page-home .cover__art {
    margin-top: clamp(1rem, 5vw, 4rem);
  }
  .page-home .cover__orbit {
    right: -14%;
    bottom: -28%;
  }
  .page-home .gate__inner {
    grid-template-columns: minmax(0, 4.6fr) minmax(0, 7.4fr);
    align-items: start;
    gap: clamp(2rem, 5vw, 4rem);
  }
  .page-home .ios__inner {
    grid-template-columns: minmax(0, 6.6fr) minmax(0, 5.4fr);
    align-items: center;
    gap: clamp(2rem, 5vw, 4rem);
  }
}

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

@media (prefers-reduced-motion: reduce) {
  .page-home .desk-item,
  .page-home .explore-card {
    transition: none;
  }
  .page-home .desk-item:hover,
  .page-home .desk-item:focus-within,
  .page-home .explore-card:hover,
  .page-home .explore-card:focus-visible {
    transform: none;
  }
}