.page-home {
  --home-rule: rgba(140, 122, 148, .24);
  position: relative;
  padding-block: clamp(18px, 3vw, 32px) clamp(44px, 6vw, 78px);
  background-color: var(--sand);
  background-image:
    linear-gradient(to right, rgba(110, 139, 116, .10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(110, 139, 116, .10) 1px, transparent 1px);
  background-size: 56px 56px;
  color: var(--ink);
  font-family: var(--font-body);
}

.page-home .home-wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-home a:focus-visible,
.page-home summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  display: grid;
  gap: 26px;
  padding-block: clamp(12px, 2.4vw, 26px) clamp(40px, 6vw, 74px);
}

.page-home .hero-plate {
  position: relative;
  z-index: 1;
  padding: clamp(24px, 4.4vw, 54px);
  border-radius: 28px 28px 28px 10px;
  background-color: var(--purple);
  background-image: linear-gradient(142deg, rgba(59, 27, 71, .66) 0%, rgba(91, 44, 111, 0) 56%);
  color: var(--paper);
  box-shadow: var(--shadow-2);
}

.page-home .hero-kicker {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: rgba(244, 233, 218, .74);
}

.page-home h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 6.2vw, 58px);
  line-height: 1.16;
  letter-spacing: .02em;
  color: inherit;
}

.page-home .hero-sub {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.9;
  color: rgba(251, 248, 243, .86);
}

.page-home .hero-tag {
  display: inline-block;
  margin: 26px 0 0;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--green);
  color: var(--ink-purple);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-start: 28px;
}

.page-home .hero-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}

.page-home .hero-btn--solid {
  background: var(--paper);
  color: var(--ink-purple);
}

.page-home .hero-btn--solid:hover {
  background: var(--green);
}

.page-home .hero-btn--ghost {
  border: 1.5px solid rgba(251, 248, 243, .55);
  color: var(--paper);
  background: transparent;
}

.page-home .hero-btn--ghost:hover {
  border-color: var(--paper);
  background: rgba(251, 248, 243, .12);
}

.page-home .hero-figure {
  margin: 0;
}

.page-home .hero-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 22px;
  box-shadow: var(--shadow-1);
}

.page-home .hero-figure figcaption {
  margin-block-start: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
}

/* ---------- 章节骨架与坐标轴 ---------- */
.page-home .bands {
  position: relative;
}

.page-home .axis {
  display: none;
}

.page-home .band {
  padding-block: clamp(36px, 6vw, 76px);
  border-top: 1px solid var(--home-rule);
}

.page-home .band__grid {
  display: grid;
  gap: 24px;
}

.page-home .band__label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-home .band__label::before {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--amber);
}

.page-home h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.3;
  letter-spacing: .02em;
  color: var(--ink-purple);
}

.page-home .txt {
  margin: 0 0 16px;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.9;
}

.page-home .txt--link {
  margin-block-start: 26px;
  font-size: 15px;
  color: var(--muted);
}

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

.page-home .txt a:hover {
  color: var(--ink-purple);
  background: rgba(168, 213, 186, .45);
}

.page-home .aside-no {
  display: block;
  margin-block-end: 14px;
  font-family: var(--font-mono);
  font-size: 42px;
  line-height: 1;
  letter-spacing: .06em;
  color: var(--lilac);
}

.page-home .aside-note {
  margin: 0;
  padding-inline-start: 16px;
  border-inline-start: 2px solid var(--lilac);
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 双栏对照 ---------- */
.page-home .compare {
  display: grid;
  gap: 16px;
  margin-block-start: 26px;
}

.page-home .panel {
  padding: 24px;
  border: 1px solid var(--home-rule);
  border-radius: 22px;
  background: var(--paper);
  box-shadow: var(--shadow-1);
  transition: transform .22s ease, box-shadow .22s ease;
}

.page-home .panel-tag {
  display: inline-block;
  margin-block-end: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--vine);
}

.page-home .panel h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.45;
  color: var(--ink-purple);
}

.page-home .panel ul {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .panel li {
  position: relative;
  padding-inline-start: 20px;
  font-size: 15px;
  line-height: 1.8;
}

.page-home .panel li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: .68em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid var(--green);
}

/* ---------- 图片 ---------- */
.page-home .band-photo {
  margin: 26px 0 0;
}

.page-home .band-photo img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: var(--shadow-1);
}

.page-home .band-photo figcaption {
  margin-block-start: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--muted);
}

/* ---------- 步骤卡 ---------- */
.page-home .steps {
  display: grid;
  gap: 14px;
  margin-block-start: 26px;
}

.page-home .step {
  overflow: hidden;
  border: 1px solid var(--home-rule);
  border-radius: 22px;
  background: var(--paper);
  box-shadow: var(--shadow-1);
}

.page-home .step summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  transition: background-color .2s ease;
}

.page-home .step summary::-webkit-details-marker {
  display: none;
}

.page-home .step summary:hover {
  background: rgba(231, 221, 235, .5);
}

.page-home .step summary::after {
  content: "";
  flex: none;
  margin-inline-start: auto;
  width: 9px;
  height: 9px;
  border-inline-end: 2px solid var(--muted);
  border-block-end: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform .2s ease;
}

.page-home .step[open] summary::after {
  transform: rotate(-135deg);
}

.page-home .step__num {
  flex: none;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--green);
  color: var(--ink-purple);
  font-family: var(--font-mono);
  font-size: 14px;
  transition: background-color .2s ease;
}

.page-home .step[open] .step__num {
  background: var(--amber);
}

.page-home .step__title {
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink-purple);
}

.page-home .step__body {
  padding: 0 20px 20px 74px;
  font-size: 15px;
  line-height: 1.88;
  color: var(--ink);
}

/* ---------- 索引列表 ---------- */
.page-home .index-list {
  display: grid;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .index-list a {
  display: grid;
  grid-template-columns: 2.6em minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  border: 1px solid var(--home-rule);
  border-radius: 16px;
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  transition: transform .2s ease, background-color .2s ease, border-color .2s ease;
}

.page-home .index-list a:hover {
  background: var(--lilac);
  border-color: var(--purple);
  transform: translateX(4px);
}

.page-home .index-list .no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-home .index-list .nm {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-purple);
}

.page-home .index-list .ds {
  display: block;
  margin-block-start: 3px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--muted);
}

.page-home .index-list .ar {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--purple);
}

/* ---------- 更新摘要 ---------- */
.page-home .digest {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .digest a {
  display: block;
  padding: 18px 20px;
  border-inline-start: 3px solid var(--amber);
  border-radius: 18px;
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  transition: transform .2s ease, background-color .2s ease;
}

.page-home .digest a:hover {
  background: var(--lilac);
  transform: translateX(4px);
}

.page-home .digest .when {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--vine);
}

.page-home .digest strong {
  display: block;
  margin: 6px 0 4px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-purple);
}

.page-home .digest .what {
  display: block;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .band-link {
  display: inline-block;
  margin-block-start: 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--purple);
  text-decoration: none;
  border-block-end: 1px solid currentColor;
  padding-block-end: 2px;
  transition: color .2s ease;
}

.page-home .band-link:hover {
  color: var(--amber);
}

/* ---------- 结尾邀请 ---------- */
.page-home .cta {
  position: relative;
  z-index: 1;
  margin-block-start: clamp(36px, 5.5vw, 70px);
  padding: clamp(26px, 4.4vw, 52px);
  border-radius: 26px;
  background-color: var(--ink-purple);
  background-image: radial-gradient(circle at 88% 10%, rgba(212, 160, 23, .24), transparent 48%);
  color: var(--paper);
}

.page-home .cta h2 {
  margin-block-end: 12px;
  color: var(--paper);
}

.page-home .cta p {
  max-width: 40em;
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(251, 248, 243, .84);
}

.page-home .cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-home .compare {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-home .compare .panel + .panel {
    margin-block-start: 40px;
  }

  .page-home .compare .panel:hover {
    transform: translate(-4px, -4px);
    box-shadow: var(--shadow-2);
  }

  .page-home .compare .panel + .panel:hover {
    transform: translate(4px, -4px);
  }

  .page-home .steps {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-home .txt {
    font-size: 17px;
  }
}

@media (min-width: 1000px) {
  .page-home .hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: start;
    gap: 0;
  }

  .page-home .hero-figure {
    position: relative;
    z-index: 2;
    margin-inline-start: -84px;
    margin-block-start: 58px;
  }

  .page-home .bands {
    position: relative;
  }

  .page-home .axis {
    display: block;
    position: absolute;
    inset-block: 0;
    inset-inline-start: 62.5%;
    width: 1px;
    background-image: repeating-linear-gradient(to bottom, var(--vine) 0 6px, transparent 6px 14px);
    opacity: .5;
    pointer-events: none;
  }

  .page-home .axis::before {
    content: "";
    position: absolute;
    inset-block-start: 0;
    inset-inline-start: -4px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--amber);
  }

  .page-home .band__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 1fr) minmax(0, 4fr);
    column-gap: 0;
    align-items: start;
  }

  .page-home .band__main {
    grid-column: 1 / 2;
    padding-inline-end: 34px;
  }

  .page-home .band__aside {
    grid-column: 3 / 4;
    padding-inline-start: 34px;
  }
}

@media (max-width: 519px) {
  .page-home .step__body {
    padding-inline-start: 20px;
  }

  .page-home .index-list a {
    grid-template-columns: 2.2em minmax(0, 1fr) auto;
    padding: 14px 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero-btn,
  .page-home .panel,
  .page-home .step summary,
  .page-home .step summary::after,
  .page-home .index-list a,
  .page-home .digest a,
  .page-home .band-link {
    transition: none;
  }

  .page-home .index-list a:hover,
  .page-home .digest a:hover,
  .page-home .compare .panel:hover {
    transform: none;
  }
}