.page-home {
  --page-pad: 20px;
  --page-edge: 26px;
  background: var(--ink);
  color: var(--text-on-dark);
  overflow-x: hidden;
}

/* ---------- HERO ---------- */
.page-home .hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  background: var(--ink);
}

.page-home .hero__paper {
  position: relative;
  z-index: 2;
  background: var(--paper);
  color: var(--carbon);
  padding: 34px var(--page-pad) 40px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - var(--page-edge)));
}

.page-home .hero__ctx {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(16, 16, 16, 0.5);
}

.page-home .hero__ctx span[aria-hidden] {
  color: var(--dawn);
  font-weight: 700;
}

.page-home .hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--carbon);
  text-wrap: balance;
}

.page-home .hero__lead {
  margin: 0 0 24px;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.74;
  color: rgba(16, 16, 16, 0.76);
}

.page-home .hero__facts {
  list-style: none;
  margin: 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(16, 16, 16, 0.14);
  display: grid;
  gap: 10px;
}

.page-home .hero__facts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(16, 16, 16, 0.68);
}

.page-home .hero__facts .data-num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--dawn);
  letter-spacing: 0.02em;
}

.page-home .hero__facts .unit {
  font-size: 13px;
  font-weight: 600;
  margin-left: 0.1em;
  color: rgba(16, 16, 16, 0.6);
}

.page-home .hero__stage {
  position: relative;
  min-height: 380px;
  overflow: hidden;
  background: var(--ink-night);
}

.page-home .hero__img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
  object-position: center 40%;
  opacity: 0.72;
}

.page-home .hero__gate {
  position: absolute;
  left: var(--page-pad);
  right: var(--page-pad);
  bottom: var(--page-pad);
  padding: 18px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
}

.page-home .hero__gate-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-home .hero__gate-note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.62;
  color: var(--text-dim);
}

/* ---------- PULSE ---------- */
.page-home .pulse {
  background: var(--ink-night);
  padding: 24px var(--page-pad);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .pulse__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 12px;
}

.page-home .pulse__item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-left: 12px;
  border-left: 2px solid var(--dawn);
}

.page-home .pulse__item .data-num {
  font-family: var(--font-mono);
  font-size: 25px;
  font-weight: 700;
  line-height: 1;
  color: var(--text-on-dark);
  letter-spacing: 0.01em;
}

.page-home .pulse__item .unit {
  margin-left: 0.1em;
  font-size: 13px;
  color: var(--amber);
}

.page-home .pulse__key {
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-dim);
}

/* ---------- LIBRARY ---------- */
.page-home .library {
  background: var(--ink);
  padding: 46px var(--page-pad) 50px;
  border-top: 1px solid var(--line-soft);
}

.page-home .library__head {
  margin-bottom: 24px;
}

.page-home .library .section-title {
  margin: 0 0 12px;
  font-size: clamp(24px, 5.2vw, 36px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--text-on-dark);
}

.page-home .library .section-lead {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(232, 238, 247, 0.7);
}

.page-home .filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  padding-bottom: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.page-home .filter-bar::-webkit-scrollbar {
  display: none;
}

.page-home .filter-chip {
  flex: 0 0 auto;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: rgba(232, 238, 247, 0.72);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-home .filter-chip:hover {
  color: var(--amber);
  border-color: var(--amber);
}

.page-home .filter-chip:focus-visible {
  outline: 2px solid var(--dawn);
  outline-offset: 2px;
}

.page-home .filter-chip[data-active-filter] {
  background: var(--dawn);
  border-color: var(--dawn);
  color: #fff;
}

.page-home .filter-status {
  margin: 0 0 18px;
  min-height: 1.2em;
  font-size: 12.5px;
  color: var(--text-dim);
}

.page-home .library__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

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

.page-home .cards .card {
  position: relative;
  padding: 20px 18px 22px;
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  background: var(--ink-board);
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease), border-color 180ms var(--ease);
}

.page-home .cards .card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: rgba(255, 107, 53, 0.42);
}

.page-home .cards .card--accent {
  border-top: 3px solid var(--dawn);
}

.page-home .cards .card--lead {
  background: linear-gradient(150deg, var(--ink-board) 0%, #17325a 100%);
}

.page-home .cards .card--lead .card-title {
  font-size: 23px;
}

.page-home .cards .card .media-frame {
  margin: -20px -18px 16px;
  border-radius: 4px 4px 0 0;
  overflow: hidden;
}

.page-home .cards .card .media-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.page-home .card__idx {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--dawn);
}

.page-home .cards .card-title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-on-dark);
}

.page-home .cards .card-text {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.74;
  color: rgba(232, 238, 247, 0.72);
}

.page-home .card__link {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 13px;
  font-weight: 600;
  color: var(--dawn);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 53, 0.42);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .card__link:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-home .library__rail {
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.page-home .library__rail .media-frame {
  margin: 0 0 16px;
  border-radius: 3px;
  overflow: hidden;
}

.page-home .library__rail .media-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.page-home .library__rail h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.32;
  color: var(--text-on-dark);
}

.page-home .library__rail p {
  margin: 0 0 18px;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(232, 238, 247, 0.7);
}

/* ---------- TEMPO ---------- */
.page-home .tempo {
  background: var(--ink);
  padding: 44px var(--page-pad) 52px;
  border-top: 1px solid var(--line-soft);
}

.page-home .tempo__head {
  margin-bottom: 24px;
}

.page-home .tempo .section-title {
  margin: 0;
  font-size: clamp(24px, 5.2vw, 34px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--text-on-dark);
}

.page-home .tempo__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .tempo__item {
  position: relative;
  padding: 20px 18px 22px;
  border-left: 3px solid var(--dawn);
  border-radius: 0 4px 4px 0;
  background: var(--ink-board);
}

.page-home .tempo__item .data-num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  opacity: 0.55;
}

.page-home .tempo__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-on-dark);
}

.page-home .tempo__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: rgba(232, 238, 247, 0.72);
}

/* ---------- PATHS (暖纸区) ---------- */
.page-home .paths {
  background: var(--paper);
  color: var(--carbon);
  padding: 48px var(--page-pad) 50px;
  clip-path: polygon(0 26px, 100% 0, 100% 100%, 0 100%);
}

.page-home .paths__head {
  margin-bottom: 26px;
}

.page-home .paths .eyebrow {
  color: rgba(16, 16, 16, 0.55);
}

.page-home .paths .section-title {
  margin: 0;
  font-size: clamp(24px, 5.4vw, 36px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--carbon);
}

.page-home .paths__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .path {
  position: relative;
  padding: 22px 20px 24px;
  background: #fff;
  border: 1px solid rgba(16, 16, 16, 0.1);
  border-radius: 4px;
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-home .path:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 36px -28px rgba(11, 31, 58, 0.7);
}

.page-home .path__tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 3px 10px;
  border-radius: 2px;
  background: var(--ink);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-home .path__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.36;
  color: var(--carbon);
}

.page-home .path__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.74;
  color: rgba(16, 16, 16, 0.74);
}

.page-home .path__link {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--dawn);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .path__link:hover {
  color: var(--dawn);
  border-bottom-color: var(--ink);
}

/* ---------- CADENCE ---------- */
.page-home .cadence {
  background: var(--paper);
  color: var(--carbon);
  padding: 34px var(--page-pad) 58px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-home .cadence__media {
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid rgba(16, 16, 16, 0.1);
}

.page-home .cadence__media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-home .cadence .eyebrow {
  color: rgba(16, 16, 16, 0.55);
}

.page-home .cadence .section-title {
  margin: 0 0 14px;
  font-size: clamp(23px, 5vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--carbon);
}

.page-home .cadence__text p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(16, 16, 16, 0.76);
}

.page-home .cadence__text .btn {
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home {
    --page-pad: 32px;
  }

  .page-home .pulse__list {
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
  }

  .page-home .pulse__item {
    padding-left: 14px;
  }

  .page-home .cards {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .page-home .cards .card--lead {
    grid-column: 1 / -1;
  }

  .page-home .tempo__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .page-home .paths__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-home .cadence {
    grid-template-columns: 1.05fr 1fr;
    align-items: center;
    gap: 30px;
  }
}

@media (min-width: 900px) {
  .page-home {
    --page-pad: 44px;
  }

  .page-home .hero {
    grid-template-columns: minmax(360px, 40%) 1fr;
    min-height: 560px;
  }

  .page-home .hero__paper {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 60px 76px 60px var(--page-pad);
    clip-path: polygon(0 0, 100% 0, calc(100% - 56px) 100%, 0 100%);
  }

  .page-home .hero__stage {
    min-height: 560px;
  }

  .page-home .hero__img {
    min-height: 560px;
    opacity: 0.78;
  }

  .page-home .hero__gate {
    left: auto;
    right: var(--page-pad);
    bottom: var(--page-pad);
    width: 330px;
  }

  .page-home .library__body {
    grid-template-columns: 1fr 320px;
    gap: 24px;
    align-items: start;
  }

  .page-home .library__rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-home .paths {
    padding-top: 64px;
    padding-bottom: 64px;
  }
}

@media (min-width: 1240px) {
  .page-home .hero {
    max-width: 1520px;
    margin-inline: auto;
  }

  .page-home .hero__paper {
    padding-left: max(var(--page-pad), calc((100vw - 1240px) / 2));
  }

  .page-home .pulse__list,
  .page-home .library__head,
  .page-home .filter-bar,
  .page-home .filter-status,
  .page-home .library__body,
  .page-home .tempo__head,
  .page-home .tempo__list,
  .page-home .paths__head,
  .page-home .paths__grid,
  .page-home .cadence {
    max-width: 1240px;
    margin-inline: auto;
  }

  .page-home .cards {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .page-home .cards .card-text {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .cards .card,
  .page-home .path,
  .page-home .card__link,
  .page-home .path__link,
  .page-home .filter-chip {
    transition-duration: 0.01ms !important;
  }
}