.page-home {
  --home-gold: #FFD700;
  --home-red: #E63946;
  --home-ink: #1D3557;
  --home-ink-soft: #3D5575;
  --home-paper: #F5F0E6;
  --home-paper-deep: #E8E0D0;
  --home-glass: rgba(255, 255, 255, 0.55);
  --home-sand: #C8BFA8;
  --home-font-heading: Impact, "Arial Black", "PingFang SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --home-font-body: "Open Sans", "PingFang SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --home-font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Courier New", monospace;
  background-color: var(--home-paper);
  color: var(--home-ink);
  font-family: var(--home-font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

.page-home .container {
  max-width: var(--container-width, 1200px);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.page-home .breadcrumb {
  background-color: var(--home-paper-deep);
  padding: 12px 0;
  border-bottom: 1px solid var(--home-sand);
}

.page-home .breadcrumb__list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .breadcrumb__link {
  font-family: var(--home-font-mono);
  font-size: 0.8125rem;
  color: var(--home-ink-soft);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.2s ease;
}

.page-home .breadcrumb__link:hover {
  color: var(--home-gold);
}

.page-home .btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border: 2px solid transparent;
  border-radius: 6px;
  font-family: var(--home-font-body);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.page-home .btn:focus-visible {
  outline: 3px solid #f59e0b;
  outline-offset: 2px;
}

.page-home .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(29, 53, 87, 0.15);
}

.page-home .btn--lg {
  padding: 16px 28px;
  font-size: 1.0625rem;
}

.page-home .btn--sm {
  padding: 10px 18px;
  font-size: 0.9375rem;
}

.page-home .btn--xs {
  padding: 6px 14px;
  font-size: 0.8125rem;
}

.page-home .btn--gold {
  background-color: var(--home-gold);
  color: var(--home-ink);
  border-color: var(--home-gold);
}

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

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

.page-home .btn--ghost {
  background-color: transparent;
  color: var(--home-ink);
  border-color: var(--home-sand);
}

.page-home .btn__arrow {
  font-family: var(--home-font-mono);
  transition: transform 0.2s ease;
}

.page-home .btn:hover .btn__arrow {
  transform: translateX(4px);
}

.page-home .tag {
  display: inline-block;
  font-family: var(--home-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border-radius: 3px;
  margin: 4px;
}

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

.page-home .tag--red {
  background-color: var(--home-red);
  color: #fff;
}

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

.page-home .tag--ghost {
  background-color: transparent;
  color: var(--home-ink-soft);
  border: 1px solid var(--home-sand);
}

.page-home .card {
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 4px 16px rgba(29, 53, 87, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-home .card--glass {
  background-color: var(--home-glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--home-sand);
}

.page-home .card--flat {
  background-color: var(--home-paper-deep);
  border: 1px solid var(--home-sand);
}

.page-home .card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(29, 53, 87, 0.15);
}

/* ===== 首屏海报 ===== */
.home-hero-poster {
  position: relative;
  padding: 3rem 0 6rem;
  overflow: hidden;
}

.hero-poster__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-poster__img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  display: block;
}

.hero-poster__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(29, 53, 87, 0.95) 0%, rgba(29, 53, 87, 0.75) 40%, rgba(29, 53, 87, 0.4) 100%);
  z-index: 1;
}

.hero-poster__speed-line {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.7), transparent);
  z-index: 2;
}

.hero-poster__speed-line--one {
  top: 25%;
  left: -10%;
  width: 60%;
  transform: rotate(-12deg);
}

.hero-poster__speed-line--two {
  bottom: 15%;
  right: -15%;
  width: 50%;
  transform: rotate(8deg);
}

.hero-poster__speed-line--three {
  top: 60%;
  left: 40%;
  width: 35%;
  transform: rotate(-5deg);
}

.hero-poster__inner {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.hero-poster__content {
  max-width: 100%;
}

.hero-poster__eyebrow {
  font-family: var(--home-font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--home-gold);
  margin-bottom: 1rem;
}

.hero-poster__title {
  font-family: var(--home-font-heading);
  font-size: clamp(3rem, 8vw, 5.5rem);
  line-height: 1.05;
  color: #fff;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-poster__subtitle {
  font-family: var(--home-font-mono);
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 1.5rem;
  letter-spacing: 0.08em;
}

.hero-poster__desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 34em;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-poster__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 1.5rem;
}

.hero-poster__version-tag {
  display: flex;
  flex-wrap: wrap;
}

.hero-poster__version-tag .tag {
  margin-top: 4px;
}

.hero-poster__visual {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: flex-start;
}

.hero-poster__stat {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 18px 24px;
  color: #fff;
  min-width: 130px;
  text-align: center;
}

.hero-poster__stat--alt {
  background: rgba(255, 215, 0, 0.15);
  border-color: rgba(255, 215, 0, 0.3);
}

.hero-poster__stat-num {
  font-family: var(--home-font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--home-gold);
  display: block;
}

.hero-poster__stat-unit {
  font-size: 1rem;
  margin-left: 2px;
}

.hero-poster__stat-label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.8);
}

.hero-poster__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(230, 57, 70, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 8px 16px;
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 600;
}

.hero-poster__badge-icon {
  color: var(--home-gold);
}

/* ===== 章节标题 ===== */
.page-home .chapter {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 2rem;
  padding-top: 2rem;
}

.page-home .chapter--light {
  position: relative;
}

.page-home .chapter__num {
  font-family: var(--home-font-mono);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--home-gold);
  background: linear-gradient(135deg, var(--home-gold) 0%, #f0c000 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-home .chapter__label {
  font-family: var(--home-font-heading);
  font-size: 1.625rem;
  color: var(--home-ink);
  margin: 0 0 0.25rem;
}

.page-home .chapter__intro {
  max-width: 34em;
  color: var(--home-ink-soft);
  font-size: 0.9375rem;
  margin: 0;
}

/* ===== 双通道区块 ===== */
.page-home .dual-channel__grid {
  gap: 24px;
}

.page-home .channel-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.page-home .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.page-home .channel-card--new::before {
  background: var(--home-gold);
}

.page-home .channel-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.page-home .channel-card__badge {
  font-family: var(--home-font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 999px;
}

.page-home .channel-card__badge--new {
  background: var(--home-gold);
  color: var(--home-ink);
}

.page-home .channel-card__badge--old {
  background: var(--home-sand);
  color: var(--home-ink);
}

.page-home .channel-card__title {
  font-family: var(--home-font-heading);
  font-size: 1.5rem;
  margin: 0 0 0.75rem;
}

.page-home .channel-card__desc {
  color: var(--home-ink-soft);
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
}

.page-home .channel-card__list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-home .channel-card__list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.875rem;
  color: var(--home-ink);
}

.page-home .channel-card__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--home-gold);
  font-weight: 700;
}

.page-home .channel-card__actions {
  margin-top: auto;
}

.page-home .channel-switch-note {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  margin-top: 3rem;
  padding: 2rem;
  background: var(--home-paper-deep);
  border-radius: 12px;
  text-align: center;
}

.page-home .channel-switch-note__img {
  max-width: 120px;
  width: 100%;
  height: auto;
  border-radius: 50%;
  border: 2px solid var(--home-gold);
  box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.2);
}

.page-home .channel-switch-note__text {
  font-size: 0.9375rem;
  color: var(--home-ink);
  max-width: 36em;
  margin: 0;
}

/* ===== 版本对比 ===== */
.page-home .version-section {
  background: var(--home-ink);
  color: var(--home-paper);
  padding-bottom: 4rem;
}

.page-home .version-section .chapter__label {
  color: var(--home-paper);
}

.page-home .version-section .chapter__intro {
  color: rgba(255, 255, 255, 0.7);
}

.page-home .version-compare__tabs {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  overflow: hidden;
}

.page-home .version-compare__tab-list {
  display: flex;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.page-home .version-compare__tab {
  background: transparent;
  border: none;
  padding: 16px 24px;
  font-family: var(--home-font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
  flex: 1;
}

.page-home .version-compare__tab:hover {
  color: var(--home-gold);
}

.page-home .version-compare__tab--active {
  background: rgba(255, 215, 0, 0.15);
  color: var(--home-gold);
  border-bottom: 2px solid var(--home-gold);
}

.page-home .version-compare__panel {
  display: none;
  padding: 2rem 1.5rem;
}

.page-home .version-compare__panel--active {
  display: block;
}

.page-home .table-wrap {
  overflow-x: auto;
}

.page-home .table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-family: var(--home-font-body);
  font-size: 0.9375rem;
  color: var(--home-paper);
}

.page-home .table thead th {
  background: rgba(255, 255, 255, 0.08);
  padding: 14px 16px;
  text-align: left;
  font-family: var(--home-font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.page-home .table tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.page-home .table tbody tr:last-child td {
  border-bottom: none;
}

.page-home .version-compare__note {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
  margin: 1.5rem 0 0;
  text-align: center;
}

.page-home .version-compare__legacy {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
}

.page-home .version-compare__legacy-title {
  color: var(--home-gold);
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}

.page-home .version-compare__legacy-list {
  color: rgba(255, 255, 255, 0.85);
  padding-left: 1.25rem;
  line-height: 2;
}

/* ===== 核心功能 ===== */
.page-home .feature-section {
  padding: 2rem 0 4rem;
}

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

.page-home .feature-card {
  background: var(--home-paper-deep);
  border: 1px solid var(--home-sand);
  position: relative;
  padding-top: 2.5rem;
}

.page-home .feature-card--dark {
  background: var(--home-ink);
  color: var(--home-paper);
  border-color: var(--home-ink);
}

.page-home .feature-card--dark .feature-card__desc {
  color: rgba(255, 255, 255, 0.8);
}

.page-home .feature-card__num {
  font-family: var(--home-font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--home-gold);
  line-height: 1;
  margin-bottom: 0.5rem;
  opacity: 0.85;
}

.page-home .feature-card__title {
  font-family: var(--home-font-heading);
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
}

.page-home .feature-card__desc {
  font-size: 0.875rem;
  color: var(--home-ink-soft);
  margin-bottom: 1.25rem;
  line-height: 1.65;
}

.page-home .feature-card__tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.page-home .feature-visual {
  margin-top: 24px;
}

.page-home .feature-visual__img {
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 16px 50px rgba(29, 53, 87, 0.15);
}

/* ===== 数据看板 ===== */
.page-home .dashboard-section {
  background: linear-gradient(135deg, var(--home-ink) 0%, #12233f 60%, #0d1b33 100%);
  color: var(--home-paper);
  padding: 2rem 0 5rem;
}

.page-home .dashboard-section .chapter__label {
  color: var(--home-paper);
}

.page-home .dashboard-section .chapter__intro {
  color: rgba(255, 255, 255, 0.7);
}

.page-home .dashboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 2rem;
}

.page-home .dashboard-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 24px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: background 0.25s ease, transform 0.25s ease;
}

.page-home .dashboard-card:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.page-home .dashboard-card--gold {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.25), rgba(255, 215, 0, 0.1));
  border-color: rgba(255, 215, 0, 0.4);
}

.page-home .dashboard-card--wide {
  grid-column: auto;
}

.page-home .dashboard-card__num {
  font-family: var(--home-font-mono);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--home-gold);
  line-height: 1.2;
}

.page-home .dashboard-card__unit {
  font-size: 1rem;
  margin-left: 2px;
}

.page-home .dashboard-card__label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 6px;
}

.page-home .dashboard-visual__img {
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ===== 最新动态 ===== */
.page-home .update-section {
  padding: 2rem 0 5rem;
}

.page-home .update-timeline {
  position: relative;
  padding-left: 0;
  margin-top: 2rem;
}

.page-home .timeline__item {
  border-left: 3px solid var(--home-sand);
  padding-left: 24px;
  margin-bottom: 2rem;
  position: relative;
}

.page-home .timeline__item::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 4px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--home-gold);
  border: 2px solid var(--home-paper);
  box-shadow: 0 0 0 2px var(--home-gold);
}

.page-home .timeline__meta {
  margin-bottom: 6px;
}

.page-home .timeline__title {
  font-family: var(--home-font-body);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--home-ink);
  margin: 0 0 0.5rem;
}

.page-home .timeline__desc {
  font-size: 0.875rem;
  color: var(--home-ink-soft);
  margin-bottom: 0.75rem;
  line-height: 1.65;
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-home .hero-poster__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-home .hero-poster__content {
    flex-basis: 62%;
  }

  .page-home .hero-poster__visual {
    flex-basis: 34%;
    flex-direction: column;
    align-items: stretch;
  }

  .page-home .hero-poster__actions {
    flex-direction: row;
  }

  .page-home .dual-channel__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-home .channel-switch-note {
    flex-direction: row;
    text-align: left;
  }

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

  .page-home .dashboard-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .page-home .chapter__num {
    font-size: 3.5rem;
  }

  .page-home .chapter__label {
    font-size: 2rem;
  }
}

@media (max-width: 767px) {
  .page-home .version-compare__tab {
    font-size: 0.8125rem;
    padding: 14px 10px;
  }

  .page-home .hero-poster__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .page-home .hero-poster__stat {
    flex: 1 1 46%;
    padding: 16px 12px;
  }

  .page-home .dashboard-card {
    padding: 20px 16px;
  }

  .page-home .table tbody td,
  .page-home .table thead th {
    padding: 12px;
    font-size: 0.8125rem;
  }

  .page-home .feature-card {
    padding: 20px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-home .hero-poster__title {
    animation: home-fade-in 0.6s ease both;
  }

  .page-home .hero-poster__eyebrow,
  .page-home .hero-poster__subtitle,
  .page-home .hero-poster__desc {
    animation: home-fade-in 0.6s ease both;
  }

  .page-home .hero-poster__eyebrow { animation-delay: 0.1s; }
  .page-home .hero-poster__subtitle { animation-delay: 0.2s; }
  .page-home .hero-poster__desc { animation-delay: 0.3s; }
}

@keyframes home-fade-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}