.page-home {
  --home-section-gap: clamp(48px, 8vw, 96px);
  --home-card-gap: 20px;
  display: block;
  padding-bottom: clamp(32px, 6vw, 72px);
}

.page-home section[id] {
  scroll-margin-top: 96px;
}

/* 面包屑 */
.page-home .breadcrumbs {
  padding: 18px 0 6px;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

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

.page-home .breadcrumbs li::after {
  content: "/";
  margin-left: 6px;
  color: var(--line);
}

.page-home .breadcrumbs li:last-child::after {
  content: none;
}

.page-home .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-home .breadcrumbs a:hover,
.page-home .breadcrumbs a:focus-visible {
  color: var(--lime);
}

.page-home .breadcrumbs [aria-current="page"] {
  color: var(--paper);
}

/* 分屏开场 */
.page-home .home-open {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding: 20px 0 clamp(40px, 6vw, 72px);
}

.page-home .home-open__aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-home .home-open__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-home .home-open h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 1.2rem + 3.2vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-home .home-open__lede {
  margin: 0;
  max-width: 46ch;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--muted);
}

.page-home .home-index {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-home .home-index li {
  border-bottom: 1px solid var(--line);
}

.page-home .home-index a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  color: var(--paper);
  font-size: 0.95rem;
  text-decoration: none;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-home .home-index a span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}

.page-home .home-index a:hover,
.page-home .home-index a:focus-visible {
  color: var(--lime);
  padding-left: 6px;
}

.page-home .home-open__note {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-home .home-open__stage {
  position: relative;
  overflow: hidden;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
}

.page-home .home-open__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .home-open__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
}

.page-home .home-open__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 72% 8%, rgba(198, 245, 60, 0.2), transparent 56%),
    linear-gradient(180deg, rgba(7, 20, 16, 0.2), rgba(7, 20, 16, 0.88));
}

.page-home .home-open__cards {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 6px;
}

/* 卡片 */
.page-home .home-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  transition:
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-home .home-open__cards .home-card {
  background: rgba(14, 36, 30, 0.84);
  backdrop-filter: blur(4px);
}

.page-home .home-card:hover,
.page-home .home-card:focus-within {
  border-color: var(--lime);
  transform: translateY(-2px);
}

.page-home .home-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.page-home .home-card__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.35;
  color: var(--paper);
}

.page-home .home-card__fields {
  display: grid;
  gap: 5px;
  margin: 0;
}

.page-home .home-card__field {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
}

.page-home .home-card__field dt {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-home .home-card__field dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--paper);
}

/* 主题带 */
.page-home .lanes-section {
  padding: var(--home-section-gap) 0 0;
}

.page-home .lanes-section .section-title {
  margin: 6px 0 24px;
}

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

.page-home .lane {
  position: relative;
  display: block;
  padding: 22px 22px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--paper);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .lane::after {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 14px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms var(--ease);
}

.page-home .lane:hover,
.page-home .lane:focus-visible {
  transform: translateY(-2px);
}

.page-home .lane:hover::after,
.page-home .lane:focus-visible::after {
  transform: scaleX(1);
}

.page-home .lane--a {
  background: linear-gradient(100deg, var(--ink-2) 0%, var(--glass) 100%);
}

.page-home .lane--b {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.page-home .lane--c {
  background: var(--wine);
  border-color: rgba(243, 236, 221, 0.18);
}

.page-home .lane--d {
  background: var(--indigo);
  border-color: rgba(198, 245, 60, 0.2);
}

.page-home .lanes > li:nth-child(2) .lane {
  padding-top: 30px;
  padding-bottom: 34px;
}

.page-home .lanes > li:nth-child(4) .lane {
  padding-top: 34px;
  padding-bottom: 38px;
}

.page-home .lane__meta {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  opacity: 0.85;
}

.page-home .lane__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.3rem, 1.05rem + 1.2vw, 1.9rem);
  letter-spacing: -0.01em;
}

.page-home .lane__desc {
  margin: 0;
  max-width: 54ch;
  font-size: 0.9rem;
  line-height: 1.7;
  opacity: 0.88;
}

.page-home .terrace {
  display: block;
  width: 100%;
  height: 34px;
  margin: 26px 0 0;
  opacity: 0.45;
}

/* 卡片流 */
.page-home .cards-section {
  padding: var(--home-section-gap) 0;
}

.page-home .cards-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 26px;
}

.page-home .cards-head .section-title {
  margin: 6px 0 10px;
}

.page-home .cards-lede {
  margin: 0;
  max-width: 60ch;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--muted);
}

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

.page-home .card-feature {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
}

.page-home .card-feature .figure__img {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  background: linear-gradient(160deg, var(--glass), var(--ink-2));
}

.page-home .card-feature .figure__img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .card-feature__cap {
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--muted);
}

.page-home .cards-note {
  margin: 24px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--muted);
}

/* 变动提示 */
.page-home .signal-section {
  padding: 0 0 var(--home-section-gap);
}

.page-home .signal-strip {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 24px 20px 24px 24px;
  border: 1px solid var(--signal);
  border-radius: var(--radius);
  background: rgba(255, 122, 51, 0.08);
}

.page-home .signal-strip::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--signal);
}

.page-home .signal-strip__kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-home .signal-strip__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.2rem, 1rem + 1vw, 1.6rem);
  line-height: 1.25;
  color: var(--paper);
}

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

.page-home .signal-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 122, 51, 0.3);
  border-radius: var(--radius);
  background: rgba(7, 20, 16, 0.5);
}

.page-home .signal-list__when {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--signal);
}

.page-home .signal-list__what {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--paper);
}

.page-home .signal-list__what strong {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--lime);
}

.page-home .signal-strip__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.page-home .signal-strip__foot p {
  margin: 0;
  max-width: 56ch;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--muted);
}

/* 内容目录 */
.page-home .catalog-section {
  padding: 0 0 var(--home-section-gap);
}

.page-home .catalog-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: clamp(22px, 4vw, 42px);
  border: 1px solid rgba(198, 245, 60, 0.2);
  border-radius: var(--radius);
  background: var(--indigo);
}

.page-home .catalog-panel__text h2 {
  margin: 6px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 1.1rem + 1.6vw, 2.1rem);
  line-height: 1.2;
  color: var(--paper);
}

.page-home .catalog-lede {
  margin: 0 0 18px;
  max-width: 52ch;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(243, 236, 221, 0.82);
}

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

.page-home .catalog-tree li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(243, 236, 221, 0.2);
  font-size: 0.9rem;
  color: var(--paper);
}

.page-home .catalog-tree li span {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--lime);
}

.page-home .catalog-panel__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(243, 236, 221, 0.14);
  border-radius: var(--radius);
  object-fit: cover;
}

.page-home .leagues {
  margin-top: 26px;
}

.page-home .leagues__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-home .leagues ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-home .leagues a {
  display: inline-flex;
  align-items: center;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--paper);
  font-size: 0.84rem;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .leagues a:hover,
.page-home .leagues a:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
}

.page-home .leagues__more {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-home .leagues__more:hover,
.page-home .leagues__more:focus-visible {
  border-bottom-color: var(--lime);
}

/* 案例合集 */
.page-home .cases-section {
  padding: 0 0 var(--home-section-gap);
}

.page-home .cases-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: clamp(22px, 4vw, 42px);
  border: 1px solid rgba(243, 236, 221, 0.16);
  border-radius: var(--radius);
  background: var(--wine);
}

.page-home .cases-panel__text h2 {
  margin: 6px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 1.1rem + 1.6vw, 2.1rem);
  line-height: 1.2;
  color: var(--paper);
}

.page-home .cases-panel__text > p {
  margin: 0 0 18px;
  max-width: 54ch;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(243, 236, 221, 0.82);
}

.page-home .cases-list {
  display: grid;
  gap: 12px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-home .cases-list li {
  padding: 14px 16px;
  border: 1px solid rgba(243, 236, 221, 0.2);
  border-radius: var(--radius);
  background: rgba(7, 20, 16, 0.32);
}

.page-home .cases-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--lime);
}

.page-home .cases-list p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: rgba(243, 236, 221, 0.86);
}

.page-home .cases-panel__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(243, 236, 221, 0.18);
  border-radius: var(--radius);
  object-fit: cover;
}

/* 帮助入口 */
.page-home .help-section {
  padding: 0;
}

.page-home .help-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: clamp(24px, 4vw, 36px) 0 0;
  border-top: 1px solid var(--line);
}

.page-home .help-panel .section-title {
  margin: 0 0 10px;
}

.page-home .help-lede {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-start;
}

/* 中等屏幕 */
@media (min-width: 640px) {
  .page-home .home-open__stage {
    padding: 18px;
  }

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

  .page-home .home-open__cards .home-card:first-child {
    grid-column: 1 / -1;
  }

  .page-home .catalog-tree {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 22px;
  }

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

  .page-home .signal-list li {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }
}

/* 桌面 */
@media (min-width: 900px) {
  .page-home .home-open {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(28px, 4vw, 60px);
    padding: 32px 0 clamp(56px, 6vw, 84px);
    align-items: start;
  }

  .page-home .home-open__stage {
    padding: 20px;
  }

  .page-home .home-open__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-home .home-open__cards .home-card:first-child {
    grid-column: auto;
  }

  .page-home .lanes {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 14px;
  }

  .page-home .lanes > li:nth-child(1) {
    grid-column: 1 / span 7;
  }

  .page-home .lanes > li:nth-child(2) {
    grid-column: 8 / span 5;
  }

  .page-home .lanes > li:nth-child(3) {
    grid-column: 1 / span 5;
  }

  .page-home .lanes > li:nth-child(4) {
    grid-column: 6 / span 7;
  }

  .page-home .lane {
    height: 100%;
  }

  .page-home .catalog-panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-home .cases-panel {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
  }

  .page-home .help-panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-home .help-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1080px) {
  .page-home .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .card-feature {
    grid-column: span 2;
  }

  .page-home .card-feature .figure__img {
    aspect-ratio: 16 / 9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-card,
  .page-home .lane,
  .page-home .home-index a,
  .page-home .leagues a {
    transition: none;
  }

  .page-home .home-card:hover,
  .page-home .lane:hover {
    transform: none;
  }

  .page-home .lane::after {
    transition: none;
  }
}