.page-home {
  --home-gap: clamp(1.25rem, 3vw, 2rem);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

.page-home .band {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
}

.page-home .grid {
  display: grid;
  gap: var(--home-gap);
}

.page-home .grid-2,
.page-home .grid-3,
.page-home .grid-asym {
  grid-template-columns: minmax(0, 1fr);
}

.page-home .section-head {
  position: relative;
  padding-left: 1rem;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-home .section-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.25em;
  bottom: 0.25em;
  width: 6px;
  background: var(--gold);
}

.page-home .section-head h2 {
  margin: 0.3rem 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.6rem, 4.4vw, 2.6rem);
  line-height: 1.22;
  color: var(--indigo);
}

.page-home .eyebrow {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--red);
}

.page-home .note {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-home .note a {
  color: var(--indigo);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(2rem, 6vw, 4.5rem) clamp(2.5rem, 7vw, 5rem);
  background-image: linear-gradient(165deg, var(--sky) 0%, var(--paper) 54%, var(--butter) 100%);
}

.page-home .hero-shape {
  position: absolute;
  z-index: 0;
  display: block;
  pointer-events: none;
}

.page-home .hero-shape::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(92deg, rgba(255, 255, 255, 0.09) 0 2px, transparent 2px 10px);
}

.page-home .hero-shape--red {
  top: -12%;
  left: -14%;
  width: 80%;
  height: 64%;
  background: linear-gradient(140deg, var(--red) 0%, var(--red-deep) 100%);
  clip-path: polygon(0 0, 100% 0, 54% 100%, 0 100%);
}

.page-home .hero-shape--indigo {
  right: -16%;
  bottom: -14%;
  width: 74%;
  height: 58%;
  background: linear-gradient(320deg, var(--indigo) 0%, #0b1c2c 100%);
  clip-path: polygon(46% 0, 100% 0, 100% 100%, 0 100%);
}

.page-home .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-home .hero-copy {
  background: var(--card);
  border: var(--edge) solid var(--ink);
  box-shadow: var(--shadow-hard);
  padding: clamp(1.25rem, 3.5vw, 2.25rem);
}

.page-home .hero h1 {
  margin: 0.45rem 0 1rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2.2rem, 7.5vw, 4.3rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--indigo);
}

.page-home .hero-lede {
  margin: 0 0 1rem;
  font-size: clamp(1rem, 2.3vw, 1.12rem);
  line-height: 1.75;
}

.page-home .hero-note {
  margin: 0 0 1.25rem;
  padding-left: 0.9rem;
  border-left: 3px solid var(--gold);
}

.page-home .figure {
  margin: 0;
  background: var(--card);
  border: var(--edge) solid var(--ink);
  box-shadow: var(--shadow-hard);
  transition: box-shadow 0.2s ease-out, border-color 0.2s ease-out;
}

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

.page-home .figure-cap {
  padding: 0.7rem 1rem 0.85rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--stone);
  border-top: 2px solid var(--ink);
  background: var(--card);
}

.page-home .hero-figure img {
  aspect-ratio: 4 / 5;
}

.page-home .btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  text-align: center;
  padding: 0.78rem 1.6rem;
  border: var(--edge) solid var(--ink);
  transition: background-color 0.18s ease-out, box-shadow 0.18s ease-out, color 0.18s ease-out;
}

.page-home .btn--primary {
  background: var(--red);
  color: var(--card);
  box-shadow: var(--shadow-hard);
}

.page-home .btn--primary:hover,
.page-home .btn--primary:focus-visible {
  background: var(--gold);
  color: var(--ink);
  box-shadow: var(--shadow-mid);
}

/* ---------- 锚点索引 ---------- */

.page-home .anchor-index {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--indigo);
  border-block: var(--edge) solid var(--ink);
}

.page-home .anchor-index-list {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0.6rem clamp(1rem, 4vw, 2.5rem);
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-home .anchor-link {
  display: inline-block;
  white-space: nowrap;
  padding: 0.35rem 0.8rem;
  font-size: 0.9rem;
  color: var(--paper);
  text-decoration: none;
  border: 2px solid transparent;
}

.page-home .anchor-link:hover,
.page-home .anchor-link:focus-visible {
  border-color: var(--gold);
  color: var(--butter);
}

.page-home .anchor-link[aria-current="true"] {
  background: var(--gold);
  color: var(--ink);
  border-color: var(--ink);
}

/* ---------- 堆叠面板 ---------- */

.page-home .panel {
  position: relative;
  margin-block: clamp(1.5rem, 4vw, 2.5rem);
  margin-inline: clamp(0.5rem, 1.8vw, 1.25rem);
  padding-block: clamp(2rem, 5vw, 3.5rem);
  background: var(--card);
  border: var(--edge) solid var(--ink);
  box-shadow: var(--shadow-hard);
}

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

.page-home .panel--red {
  background-image: linear-gradient(150deg, var(--red) 0%, var(--red-deep) 100%);
}

.page-home .panel--sky {
  background-image: linear-gradient(165deg, var(--sky) 0%, var(--paper) 78%);
}

.page-home .panel--butter {
  background-image: linear-gradient(160deg, var(--butter) 0%, var(--paper) 80%);
}

.page-home .panel--indigo {
  background-image: linear-gradient(150deg, var(--indigo) 0%, #0c1e30 100%);
}

.page-home .panel--red::after,
.page-home .panel--indigo::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(104deg, rgba(255, 255, 255, 0.05) 0 3px, transparent 3px 12px);
}

.page-home .panel--red,
.page-home .panel--indigo {
  color: var(--paper);
}

.page-home .panel--red h2,
.page-home .panel--red h3,
.page-home .panel--indigo h2,
.page-home .panel--indigo h3 {
  color: var(--paper);
}

.page-home .panel--red .eyebrow,
.page-home .panel--indigo .eyebrow {
  color: var(--butter);
}

.page-home .panel--red .note,
.page-home .panel--indigo .note {
  color: rgba(247, 241, 230, 0.8);
}

.page-home .panel--red .section-head::before,
.page-home .panel--indigo .section-head::before {
  background: var(--butter);
}

/* ---------- 卡片 ---------- */

.page-home .card {
  background: var(--card);
  border: 2px solid var(--ink);
  padding: clamp(1.1rem, 3vw, 1.6rem);
}

.page-home .card-lg {
  box-shadow: var(--shadow-hard);
  transition: box-shadow 0.2s ease-out, border-color 0.2s ease-out;
}

.page-home .card h3 {
  margin: 0.6rem 0 0.9rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1.4;
  color: var(--indigo);
}

.page-home .card p {
  margin: 0 0 0.8rem;
  line-height: 1.75;
}

.page-home .change-card {
  background-image: linear-gradient(160deg, var(--butter) 0%, var(--card) 62%);
}

.page-home .tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  border: 2px solid var(--ink);
  background: var(--butter);
  color: var(--ink);
}

.page-home .tag--gold {
  background: var(--gold);
}

.page-home .tag--barley {
  background: var(--barley);
  color: var(--card);
}

.page-home .keep-list {
  margin: 0 0 0.9rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.page-home .keep-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.7rem;
  align-items: start;
}

.page-home .keep-list p {
  margin: 0;
  line-height: 1.72;
}

.page-home .num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding-inline: 0.3rem;
  font-family: var(--font-num);
  font-size: 1rem;
  background: var(--butter);
  color: var(--ink);
  border: 2px solid var(--ink);
}

/* ---------- 通栏图条 ---------- */

.page-home .ribbon {
  margin-block: clamp(1.5rem, 4vw, 2.5rem);
}

.page-home .ribbon img {
  aspect-ratio: 16 / 5.2;
}

/* ---------- 两步导出 ---------- */

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

.page-home .export-body > p {
  margin: 0 0 1.5rem;
  line-height: 1.78;
}

.page-home .export-figure img {
  aspect-ratio: 1 / 1;
}

.page-home .steps {
  border: 2px solid var(--ink);
  background: var(--card);
  box-shadow: var(--shadow-hard);
  color: var(--ink);
  padding: clamp(0.9rem, 2.5vw, 1.4rem);
}

.page-home .step-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
}

.page-home .step-tab {
  flex: 1 1 11rem;
  padding: 0.65rem 0.9rem;
  font-family: var(--font-head);
  font-size: 0.98rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  background: var(--indigo);
  color: var(--paper);
  border: 2px solid var(--ink);
  transition: background-color 0.18s ease-out, color 0.18s ease-out;
}

.page-home .step-tab[aria-selected="true"] {
  background: var(--butter);
  color: var(--ink);
  box-shadow: var(--shadow-indigo);
}

.page-home .step-tab:hover,
.page-home .step-tab:focus-visible {
  border-color: var(--gold);
}

.page-home .step-panel {
  display: none;
}

.page-home .step-panel[data-active="true"] {
  display: block;
}

.page-home .step-panel {
  border-top: 2px solid var(--ink);
  padding-top: 1rem;
}

.page-home .step-panel h3 {
  margin: 0.5rem 0 0.6rem;
  font-family: var(--font-head);
  font-size: 1.15rem;
  color: var(--indigo);
}

.page-home .step-panel p {
  margin: 0;
  line-height: 1.75;
  color: var(--ink);
}

.page-home .num-xl {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(2.8rem, 10vw, 4.4rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--gold);
}

/* ---------- 日历筛选 ---------- */

.page-home .cal-copy p {
  margin: 0 0 0.85rem;
  line-height: 1.78;
}

.page-home .filter-preview {
  background: var(--card);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard);
  padding: clamp(1rem, 3vw, 1.5rem);
}

.page-home .filter-title {
  margin: 0 0 1rem;
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--indigo);
}

.page-home .filter-grid {
  display: grid;
  gap: 0.9rem;
}

.page-home .filter-group-title {
  margin: 0 0 0.45rem;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-home .filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-home .filter-chip input + label {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  font-size: 0.9rem;
  cursor: pointer;
  background: var(--paper);
  border: 2px solid var(--indigo);
  transition: background-color 0.16s ease-out, box-shadow 0.16s ease-out;
}

.page-home .filter-chip input:checked + label {
  background: var(--butter);
  border-color: var(--ink);
  box-shadow: var(--shadow-indigo);
}

.page-home .filter-chip input:focus-visible + label {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

.page-home .filter-result {
  margin: 1.25rem 0 0;
  padding-top: 0.9rem;
  border-top: 2px dashed var(--indigo);
  font-family: var(--font-head);
  font-size: 1rem;
  color: var(--indigo);
}

.page-home .filter-result strong {
  font-family: var(--font-num);
  font-size: clamp(1.9rem, 6vw, 2.8rem);
  line-height: 1;
  margin-inline: 0.25rem;
  color: var(--red);
}

/* ---------- 侧栏经卷面板 ---------- */

.page-home .side-block {
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

.page-home .scroll-panel {
  background: var(--card);
  border: var(--edge) solid var(--indigo);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-home .side-photo {
  display: block;
  width: 100%;
  height: auto;
  max-height: 280px;
  object-fit: cover;
  object-position: center 42%;
  border-bottom: 2px solid var(--indigo);
}

.page-home .scroll-panel-head {
  padding: clamp(1.25rem, 3.5vw, 2rem);
  background-image: linear-gradient(160deg, var(--sky) 0%, var(--paper) 82%);
  border-bottom: 2px solid var(--indigo);
}

.page-home .scroll-panel-head h2 {
  margin: 0.35rem 0 0.7rem;
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1.25;
  color: var(--indigo);
}

.page-home .scroll-panel-head p {
  margin: 0;
  line-height: 1.75;
}

.page-home .scroll-panel-body {
  padding: clamp(1.25rem, 3.5vw, 2rem);
}

.page-home .accordion {
  display: grid;
  gap: 0.75rem;
}

.page-home .accordion-item {
  background: var(--paper);
  border: 2px solid var(--ink);
}

.page-home .accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 0.9rem 1rem;
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
  text-align: left;
  color: var(--indigo);
  background: transparent;
  border: 0;
  cursor: pointer;
}

.page-home .accordion-trigger::after {
  content: "＋";
  flex: none;
  font-family: var(--font-num);
  font-size: 1.1rem;
  color: var(--red);
}

.page-home .accordion-item[data-open] .accordion-trigger {
  background: var(--butter);
}

.page-home .accordion-item[data-open] .accordion-trigger::after {
  content: "－";
  color: var(--indigo);
}

.page-home .accordion-trigger:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: -3px;
}

.page-home .accordion-panel {
  display: none;
  padding: 0.2rem 1rem 1rem;
  border-top: 2px solid var(--ink);
}

.page-home .accordion-item[data-open] .accordion-panel {
  display: block;
}

.page-home .accordion-panel p {
  margin: 0.8rem 0 0;
  line-height: 1.75;
}

.page-home .scroll-panel-body > .note {
  margin: 1.1rem 0 0;
  padding-left: 0.9rem;
  border-left: 3px solid var(--gold);
}

/* ---------- 回音节奏 ---------- */

.page-home .reply-grid {
  margin-bottom: 1.5rem;
}

.page-home .reply-stat {
  padding: 1.1rem 0 1.2rem;
  border-top: 3px solid var(--gold);
}

.page-home .reply-stat p {
  margin: 0.7rem 0 0;
  line-height: 1.75;
  color: rgba(247, 241, 230, 0.88);
}

.page-home .panel--indigo .num-xl {
  color: var(--butter);
}

.page-home .panel--indigo .stat-time {
  font-size: clamp(2.2rem, 7.5vw, 3.4rem);
}

.page-home .reply-foot {
  margin: 0;
  max-width: 62ch;
  line-height: 1.78;
}

.page-home .reply-foot a {
  color: var(--butter);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-home .reply-foot a:hover,
.page-home .reply-foot a:focus-visible {
  color: var(--gold);
}

/* ---------- 悬停与动效 ---------- */

@media (hover: hover) {
  .page-home .card-lg:hover,
  .page-home .figure:hover {
    box-shadow: var(--shadow-mid);
    border-color: var(--gold);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-home [data-reveal] {
    transition: opacity 0.28s ease-out, transform 0.28s ease-out;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ---------- 窄屏微调 ---------- */

@media (max-width: 560px) {
  .page-home .hero-shape--red {
    width: 92%;
    height: 52%;
  }

  .page-home .hero-shape--indigo {
    width: 86%;
    height: 46%;
  }

  .page-home .step-tab {
    flex: 1 1 100%;
  }

  .page-home .side-photo {
    max-height: 190px;
  }
}

/* ---------- 桌面栅格 ---------- */

@media (min-width: 900px) {
  .page-home .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-home .grid-asym {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }

  .page-home .hero-figure {
    transform: translateY(clamp(1rem, 3vw, 2.6rem));
  }

  .page-home .panel {
    margin-inline: clamp(1rem, 3vw, 2.5rem);
  }

  .page-home .panel--offset-r {
    margin-left: clamp(2rem, 8vw, 7rem);
    margin-right: clamp(0.5rem, 2vw, 1.5rem);
  }

  .page-home .panel--offset-l {
    margin-right: clamp(2rem, 8vw, 7rem);
    margin-left: clamp(0.5rem, 2vw, 1.5rem);
  }

  .page-home .filter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem;
  }

  .page-home .ribbon img {
    aspect-ratio: 16 / 5.2;
  }
}

@media (min-width: 1100px) {
  .page-home .scroll-panel {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    grid-template-areas:
      "photo head"
      "photo body";
    align-items: start;
  }

  .page-home .side-photo {
    grid-area: photo;
    height: 100%;
    max-height: none;
    object-fit: cover;
    border-bottom: 0;
    border-right: 2px solid var(--indigo);
  }

  .page-home .scroll-panel-head {
    grid-area: head;
  }

  .page-home .scroll-panel-body {
    grid-area: body;
  }
}