.page-home {
  background: var(--ink);
  color: var(--paper);
}

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

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: calc(var(--header-h) + var(--s4)) 0 var(--s6);
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(201, 162, 39, 0.18), transparent 62%),
    radial-gradient(80% 60% at 0% 100%, rgba(79, 138, 123, 0.12), transparent 70%),
    var(--ink);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(230, 206, 147, 0.14) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.5;
  pointer-events: none;
}

.page-home .hero .container {
  position: relative;
  z-index: 1;
}

.page-home .hero-crumb {
  margin-bottom: var(--s3);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.page-home .hero-crumb .sep {
  margin: 0 8px;
  color: var(--gold-soft);
}

.page-home .hero-grid {
  display: grid;
  gap: var(--s4);
}

.page-home .hero-rail .eyebrow {
  color: var(--gold-soft);
}

.page-home .hero-rail h1 {
  margin: 12px 0 0;
  font-size: 32px;
  line-height: 1.28;
  letter-spacing: 0.05em;
  font-weight: 800;
  color: var(--ivory);
}

.page-home .hero-lede {
  margin: var(--s2) 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--slate);
}

.page-home .hero-steps {
  list-style: none;
  margin: var(--s4) 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-home .hero-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 12px 14px 10px;
  border-top: 1px solid var(--line-gold);
  border-left: 2px solid transparent;
  text-decoration: none;
  color: inherit;
  transition: background-color 180ms ease, border-color 180ms ease;
}

.page-home .hero-step:last-child {
  border-bottom: 1px solid var(--line-gold);
}

.page-home .hero-step-num {
  font-size: 15px;
  line-height: 1.6;
  color: var(--gold);
  letter-spacing: 0.06em;
}

.page-home .hero-step-text {
  display: block;
}

.page-home .hero-step-title {
  display: block;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ivory);
}

.page-home .hero-step-note {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-home .hero-step:hover,
.page-home .hero-step:focus-visible {
  background: rgba(201, 162, 39, 0.08);
}

.page-home .hero-step[aria-current="true"] {
  background: rgba(201, 162, 39, 0.1);
  border-left-color: var(--gold);
}

.page-home .hero-step[aria-current="true"] .hero-step-title {
  color: var(--gold-soft);
}

.page-home .hero-cta {
  margin-top: var(--s3);
}

.page-home .hero-canvas {
  position: relative;
  background: var(--ink-2);
  border: 1px solid var(--line-gold);
  overflow: hidden;
}

.page-home .hero-canvas img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 7 / 5;
}

.page-home .hero-badge {
  position: absolute;
  right: 0;
  bottom: 0;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 18px;
  background: var(--gold);
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.page-home .hero-badge .mono {
  font-size: 22px;
  letter-spacing: 0;
}

/* ---------- 区块骨架 ---------- */
.page-home .section {
  position: relative;
  padding: var(--s6) 0;
}

.page-home .sec-deep {
  background: var(--ink-2);
}

.page-home .sec-dark {
  background: var(--ink);
}

.page-home .sec-paper {
  background: var(--paper);
  color: var(--black);
}

.page-home .sec-paper .section-title,
.page-home .sec-paper h3 {
  color: var(--black);
}

.page-home .sec-paper .section-note {
  color: #4a5560;
}

.page-home .section-num {
  color: var(--gold);
}

/* ---------- 三步展开 ---------- */
.page-home .path-grid {
  display: grid;
  gap: var(--s4);
}

.page-home .path-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--s3);
}

.page-home .path-item {
  padding: 18px 0 0;
  border-top: 1px solid var(--line-gold);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-home .path-item h3 {
  margin: 6px 0 8px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ivory);
}

.page-home .path-item p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-home .path-num {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-home .path-gain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--paper);
}

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

.page-home .path-frame {
  border: 1px solid var(--line-gold);
  background: var(--ink);
}

.page-home .path-frame img {
  width: 100%;
  object-fit: cover;
}

.page-home .path-figure .figure-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 内容中心 ---------- */
.page-home .cat-grid {
  display: grid;
  gap: var(--s4);
}

.page-home .cat-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2px;
  border-top: 1px solid rgba(14, 20, 25, 0.2);
  border-bottom: 1px solid rgba(14, 20, 25, 0.2);
  padding: 16px 0;
}

.page-home .cat-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-right: 8px;
  border-right: 1px solid rgba(14, 20, 25, 0.12);
}

.page-home .cat-stat:last-child {
  border-right: 0;
}

.page-home .cat-stat-num {
  font-size: 28px;
  line-height: 1;
  font-weight: 500;
  color: #8a6a10;
}

.page-home .cat-stat-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: #4a5560;
}

.page-home .cat-ways {
  margin-top: var(--s3);
  display: grid;
  gap: var(--s3);
}

.page-home .cat-way h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.03em;
  border-left: 3px solid var(--celadon);
  padding-left: 10px;
}

.page-home .cat-way p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #2a333c;
}

.page-home .cat-more {
  margin: var(--s3) 0 0;
}

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

.page-home .cat-frame {
  border: 1px solid rgba(14, 20, 25, 0.25);
  background: var(--ink-2);
}

.page-home .cat-frame img {
  width: 100%;
  object-fit: cover;
}

.page-home .cat-figure .figure-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: #4a5560;
}

/* ---------- V3 板块 ---------- */
.page-home .term-grid {
  display: grid;
  gap: var(--s4);
}

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

.page-home .term-frame {
  border: 1px solid var(--line-gold);
  background: var(--ink-2);
}

.page-home .term-frame img {
  width: 100%;
  object-fit: cover;
}

.page-home .term-figure .figure-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-home .term-copy .tab-list {
  display: flex;
  gap: 2px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 0;
}

.page-home .term-switch .tab {
  border-radius: 0;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.page-home .term-copy .tab-panel {
  padding-top: var(--s2);
}

.page-home .term-copy h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ivory);
}

.page-home .term-copy p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-home .term-note {
  margin-top: var(--s3);
  padding-top: 14px;
  border-top: 1px solid var(--line-gold);
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper) !important;
}

/* ---------- 帮助 ---------- */
.page-home .help-grid {
  display: grid;
  gap: var(--s4);
}

.page-home .help-item {
  border-bottom: 1px solid rgba(14, 20, 25, 0.18);
}

.page-home .help-item:first-child {
  border-top: 1px solid rgba(14, 20, 25, 0.18);
}

.page-home .help-item summary {
  cursor: pointer;
  padding: 16px 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--black);
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

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

.page-home .help-item summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cinnabar);
  width: 14px;
  flex: none;
}

.page-home .help-item[open] summary::before {
  content: "−";
  color: var(--celadon);
}

.page-home .help-item .accordion-body p {
  margin: 0 0 16px;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.8;
  color: #2a333c;
}

.page-home .help-aside {
  padding: 20px;
  background: var(--ivory);
  border: 1px solid rgba(14, 20, 25, 0.16);
  border-top: 3px solid var(--gold);
}

.page-home .help-aside .eyebrow {
  color: #8a6a10;
  margin: 0 0 10px;
}

.page-home .help-aside-text {
  margin: 0 0 var(--s2);
  font-size: 15px;
  line-height: 1.8;
  color: #2a333c;
}

.page-home .help-aside-foot {
  margin: var(--s2) 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: #4a5560;
}

/* ---------- 更新 ---------- */
.page-home .log-grid {
  display: grid;
  gap: var(--s4);
}

.page-home .log-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 18px;
  border-left: 1px solid var(--line-gold);
  display: grid;
  gap: var(--s3);
}

.page-home .log-item {
  position: relative;
  padding-bottom: var(--s2);
}

.page-home .log-item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-home .log-period {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-soft);
}

.page-home .log-item h3 {
  margin: 6px 0 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ivory);
}

.page-home .log-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-home .log-aside {
  border: 1px solid var(--line-gold);
  padding: 20px;
  background: rgba(11, 27, 43, 0.5);
}

.page-home .log-aside .eyebrow {
  color: var(--gold-soft);
  margin: 0 0 10px;
}

.page-home .log-aside p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-home .log-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: var(--s2);
}

/* ---------- 联系 ---------- */
.page-home .support-grid {
  display: grid;
  gap: 2px;
}

.page-home .support-card {
  padding: 20px;
  background: var(--ink-2);
  border-top: 1px solid var(--line-gold);
}

.page-home .support-card .eyebrow {
  margin: 0 0 10px;
  color: var(--gold-soft);
}

.page-home .support-mail {
  margin: 0 0 10px;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--ivory);
  word-break: break-all;
}

.page-home .support-address {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ivory);
}

.page-home .support-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
}

.page-home .support-actions .copy-btn {
  border-radius: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-home .support-actions .copy-feedback {
  font-size: 12px;
  color: var(--celadon);
}

.page-home .support-meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-home .support-foot {
  margin: var(--s3) 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-gold);
  font-size: 13px;
  color: var(--slate);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-home .support-link {
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms ease;
}

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

.page-home .support-foot .sep {
  color: var(--slate);
}

/* ---------- 平板 ---------- */
@media (min-width: 760px) {
  .page-home .hero-rail h1 {
    font-size: 40px;
  }

  .page-home .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
    align-items: start;
    gap: var(--s4);
  }

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

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

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-home .hero {
    padding: calc(var(--header-h) + var(--s5)) 0 var(--s6);
  }

  .page-home .hero-grid {
    grid-template-columns: minmax(320px, 0.92fr) minmax(0, 2.1fr);
    gap: var(--s5);
  }

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

  .page-home .hero-rail h1 {
    font-size: 44px;
    letter-spacing: 0.06em;
  }

  .page-home .hero-canvas {
    clip-path: polygon(7% 0, 100% 0, 100% 100%, 0 100%, 0 12%);
  }

  .page-home .hero-canvas img {
    aspect-ratio: 7 / 5;
  }

  .page-home .path-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    align-items: start;
    gap: var(--s5);
  }

  .page-home .cat-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: var(--s5);
  }

  .page-home .cat-stat-num {
    font-size: 34px;
  }

  .page-home .term-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
    gap: var(--s5);
  }

  .page-home .help-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.7fr);
    align-items: start;
    gap: var(--s5);
  }

  .page-home .log-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
    align-items: start;
    gap: var(--s5);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-home .hero-step {
    transition: none;
  }
}