/* ================= 首页专属样式 · 作用域 .page-home ================= */
.page-home {
  --edge: rgba(111, 139, 163, 0.32);
  --edge-lit: rgba(49, 224, 208, 0.55);
  --glow: 0 22px 48px -30px rgba(7, 19, 32, 0.75);
  display: block;
}

/* ---------- 通用小件 ---------- */
.page-home .num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 26px;
  padding: 0 7px;
  border-radius: 999px;
  background: var(--signal);
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  flex: none;
}

.page-home .shot {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--r-lg);
  border: 1px solid var(--edge);
  background: var(--ink-deep);
  box-shadow: var(--glow);
}

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

.page-home .shot::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(49, 224, 208, 0.1) 0,
    rgba(49, 224, 208, 0.1) 1px,
    transparent 1px,
    transparent 4px
  );
  opacity: 0.55;
  z-index: 2;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding-block: clamp(24px, 6vw, 56px) clamp(26px, 5vw, 52px);
}

.page-home .hero__index {
  border: 1px solid var(--edge);
  border-radius: var(--r-md);
  background: linear-gradient(150deg, rgba(62, 110, 142, 0.18), rgba(7, 19, 32, 0.6));
  padding: 14px 16px 16px;
}

.page-home .hero__index-kicker {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--line);
}

.page-home .hero__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
}

.page-home .hero__index-list a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 10px 6px 6px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--warm);
  text-decoration: none;
  font-size: 15px;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .hero__index-list a:hover,
.page-home .hero__index-list a:focus-visible {
  color: var(--paper);
  border-color: var(--edge-lit);
  background: rgba(49, 224, 208, 0.08);
}

.page-home .hero__copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.page-home .hero__copy .display {
  margin: 0;
  color: var(--paper);
  font-size: clamp(32px, 8.6vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 900;
}

.page-home .hero__copy .lede {
  margin: 0;
  max-width: 46ch;
  color: var(--warm);
  font-size: clamp(16px, 1.05vw, 18px);
  line-height: 1.85;
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-home .hero__hand {
  margin: 0;
  font-family: var(--font-hand);
  font-size: 19px;
  color: var(--cyan);
  transform: rotate(-1.6deg);
  transform-origin: left center;
}

.page-home .hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink-deep);
  clip-path: polygon(0 0, 100% 3.2%, 100% 100%, 0 96.8%);
}

.page-home .hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 88 / 104;
  object-fit: cover;
}

.page-home .hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(49, 224, 208, 0.12) 0,
    rgba(49, 224, 208, 0.12) 1px,
    transparent 1px,
    transparent 4px
  );
  opacity: 0.6;
}

.page-home .hero__tape {
  min-width: 0;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 18px, #000 calc(100% - 30px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 18px, #000 calc(100% - 30px), transparent 100%);
}

.page-home .tape {
  list-style: none;
  margin: 0;
  padding: 4px 2px 16px;
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-home .tape__cell {
  flex: 0 0 auto;
  scroll-snap-align: start;
  scroll-margin-top: 96px;
}

.page-home .tape__card {
  display: grid;
  gap: 7px;
  width: min(74vw, 240px);
  padding: 16px 16px 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--edge);
  background: linear-gradient(160deg, rgba(62, 110, 142, 0.2), rgba(7, 19, 32, 0.78));
  color: var(--paper);
  text-decoration: none;
  transition: border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-home .tape__card:hover,
.page-home .tape__card:focus-visible {
  border-color: var(--edge-lit);
}

.page-home .tape__num {
  font-size: 12px;
  font-weight: 700;
  color: var(--signal);
  letter-spacing: 0.08em;
}

.page-home .tape__title {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-home .tape__note {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--warm);
}

.page-home .tape__go {
  margin-top: 4px;
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

/* ---------- 章节导航条 ---------- */
.page-home .chapter-rail {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 12px 0 14px;
  border-bottom: 1px dashed rgba(111, 139, 163, 0.34);
  scrollbar-width: none;
}

.page-home .chapter-rail::-webkit-scrollbar {
  display: none;
}

.page-home .chapter-rail__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--edge);
  color: var(--warm);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .chapter-rail__item .mono {
  font-size: 12px;
  color: var(--line);
}

.page-home .chapter-rail__item:hover,
.page-home .chapter-rail__item:focus-visible {
  border-color: var(--edge-lit);
  color: var(--paper);
}

.page-home .chapter-rail__item.is-active {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-deep);
}

.page-home .chapter-rail__item.is-active .mono {
  color: var(--ink-deep);
}

/* ---------- 章节通用 ---------- */
.page-home .chapter-block {
  scroll-margin-top: 92px;
}

.page-home .chapter-block--tail {
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(62, 110, 142, 0.24), transparent 62%),
    rgba(7, 19, 32, 0.55);
}

.page-home .chapter-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: clamp(22px, 3.4vw, 38px);
}

.page-home .chapter-head__body {
  min-width: 0;
}

.page-home .chapter-head .h-sec {
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}

.page-home .chapter-head .lede {
  margin: 0;
  max-width: 62ch;
  color: var(--warm);
  font-size: clamp(15.5px, 1vw, 17.5px);
  line-height: 1.85;
}

.page-home .section--paper .chapter-head .h-sec,
.page-home .section--paper .chapter-head .lede,
.page-home .section--paper .h-sub {
  color: var(--ink);
}

.page-home .section--paper .chapter-head .lede {
  color: #3b4a58;
}

/* ---------- 01 编号索引带 ---------- */
.page-home .opindex {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

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

.page-home .oplist {
  list-style: none;
  margin: 0;
  padding: 2px 2px 12px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-home .oplist__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-home .oplist__item a {
  display: grid;
  gap: 6px;
  width: 172px;
  min-height: 104px;
  padding: 14px 14px 16px;
  border-radius: var(--r-sm);
  border: 1px solid var(--edge);
  background: rgba(7, 19, 32, 0.62);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .oplist__item a:hover,
.page-home .oplist__item a:focus-visible {
  border-color: var(--edge-lit);
  background: rgba(49, 224, 208, 0.08);
}

.page-home .oplist__num {
  font-size: 13px;
  font-weight: 700;
  color: var(--signal);
}

.page-home .oplist__name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-home .oplist__meta {
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--line);
}

.page-home .opindex__hint {
  margin: 6px 0 0;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--line);
}

.page-home .opindex__shot img {
  aspect-ratio: 16 / 9;
}

/* ---------- 02 收藏与换设备 ---------- */
.page-home .keeps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-home .h-sub {
  margin: 0 0 16px;
  font-size: clamp(19px, 1.5vw, 23px);
  letter-spacing: -0.01em;
}

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

.page-home .savelist__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border-radius: var(--r-md);
  background: var(--card);
  border: 1px solid rgba(62, 110, 142, 0.26);
}

.page-home .savelist__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: #33414f;
}

.page-home .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-home .checklist__item {
  border-bottom: 1px dashed rgba(62, 110, 142, 0.3);
}

.page-home .checklist__item:last-child {
  border-bottom: 0;
}

.page-home .checklist__item label {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 13px 4px;
  cursor: pointer;
}

.page-home .checklist__item input[type="checkbox"] {
  flex: none;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  accent-color: var(--signal);
}

.page-home .checklist__text {
  font-size: 15.5px;
  line-height: 1.8;
  color: #33414f;
}

.page-home .checklist__text strong {
  display: block;
  color: var(--ink);
  font-size: 16px;
  margin-bottom: 2px;
}

.page-home .keeps__foot {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: #4a5964;
}

.page-home .keeps__foot a {
  color: var(--mist);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 03 资料库 ---------- */
.page-home .library {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-home .library__shot img {
  aspect-ratio: 3 / 2;
}

.page-home .library__body {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .lens {
  border-left: 2px solid var(--cyan);
  padding: 2px 0 2px 16px;
}

.page-home .lens__label {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-home .lens__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--warm);
}

.page-home .library__note {
  margin: 0;
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: rgba(7, 19, 32, 0.62);
  border: 1px solid var(--edge);
  font-size: 15px;
  line-height: 1.85;
  color: var(--warm);
}

.page-home .library__body .btn {
  justify-self: start;
}

/* ---------- 04 分流 ---------- */
.page-home .skyline {
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-home .skyline img {
  aspect-ratio: 20 / 7;
}

.page-home .skyline__caption {
  position: absolute;
  right: 16px;
  bottom: 14px;
  z-index: 3;
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--paper);
  opacity: 0.82;
}

.page-home .routes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-home .route {
  display: grid;
  gap: 8px;
  padding: 18px 18px 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--edge);
  background: rgba(7, 19, 32, 0.5);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-home .route:hover,
.page-home .route:focus-visible {
  border-color: var(--edge-lit);
  background: rgba(49, 224, 208, 0.07);
}

.page-home .route__num {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--signal);
}

.page-home .route__title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-home .route__desc {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--warm);
}

.page-home .routes__tail {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--line);
}

.page-home .routes__tail a {
  color: var(--cyan);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ================= 响应式 ================= */
@media (min-width: 620px) {
  .page-home .tape__card {
    width: 250px;
  }

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

  .page-home .keeps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
  }
}

@media (min-width: 900px) {
  .page-home .hero {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: clamp(16px, 2vw, 30px);
    row-gap: 30px;
    align-items: start;
  }

  .page-home .hero__index {
    grid-column: 1 / 3;
    grid-row: 1;
  }

  .page-home .hero__index-list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-home .hero__copy {
    grid-column: 3 / 8;
    grid-row: 1;
  }

  .page-home .hero__media {
    grid-column: 8 / 13;
    grid-row: 1 / 3;
    min-height: 440px;
  }

  .page-home .hero__media img {
    position: absolute;
    inset: 0;
    height: 100%;
    aspect-ratio: auto;
  }

  .page-home .hero__tape {
    grid-column: 1 / 8;
    grid-row: 2;
  }

  .page-home .opindex {
    grid-template-columns: minmax(0, 1fr) 268px;
    align-items: start;
    column-gap: 26px;
  }

  .page-home .opindex__shot img {
    aspect-ratio: 3 / 4;
  }

  .page-home .library {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 34px;
    align-items: stretch;
  }

  .page-home .library__shot img {
    height: 100%;
    aspect-ratio: auto;
    min-height: 320px;
  }

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

@media (min-width: 1120px) {
  .page-home .hero__copy .display {
    font-size: clamp(46px, 4.6vw, 68px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero__hand {
    transform: none;
  }

  .page-home * {
    transition: none !important;
  }
}
</main>