.page-home {
  --home-gold: var(--gold, #D4AF37);
  --home-gold-bright: var(--gold-bright, #E6C64A);
  --home-red: var(--red, #8B0000);
  --home-bronze: var(--bronze, #B87333);
  --home-bg: var(--bg-primary, #0A0E13);
  --home-bg-secondary: var(--bg-secondary, #0F141C);
  --home-bg-elevated: var(--bg-elevated, #141B26);
  --home-border: var(--border-metal, #2A2F36);
  --home-border-2: var(--border-metal-2, #3A424C);
  --home-text: var(--text-primary, #E0E4E8);
  --home-text-secondary: var(--text-secondary, #A0A8B0);
  --home-text-muted: var(--text-muted, #6B7682);
  --home-cutting: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  background-color: var(--home-bg);
  color: var(--home-text);
  font-family: var(--font-body, Inter, 'PingFang SC', 'Microsoft YaHei', sans-serif);
  overflow-x: hidden;
}

.page-home a {
  color: inherit;
  text-decoration: none;
}

.page-home section {
  scroll-margin-top: 96px;
  position: relative;
}

.page-home .container {
  max-width: var(--container-width, 1280px);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 皇冠入口拼贴 ===== */
.page-home .hero-collage {
  position: relative;
  padding: 114px 0 40px;
  overflow: hidden;
}

.page-home .hero-collage::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(212, 175, 55, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 175, 55, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 88%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 88%);
  pointer-events: none;
}

.page-home .hero-collage::after {
  content: "";
  position: absolute;
  top: -52px;
  right: -70px;
  width: 280px;
  height: 280px;
  border: 1px solid rgba(212, 175, 55, 0.28);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-home .hero-collage__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 36px;
}

.page-home .hero-collage__main {
  border-left: 3px solid var(--home-gold);
  padding-left: 20px;
}

.page-home .hero-collage__crumb {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--home-text-muted);
  margin-bottom: 20px;
}

.page-home .hero-collage__title {
  font-family: var(--font-heading, Playfair Display, 'Noto Serif SC', serif);
  font-size: clamp(2.1rem, 7vw, 4.4rem);
  line-height: 1.08;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: 0.01em;
}

.page-home .hero-collage__en {
  display: block;
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--home-gold);
  margin-top: 12px;
}

.page-home .hero-collage__lede {
  margin: 20px 0 30px;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--home-text-secondary);
  max-width: 46em;
}

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

.page-home .hero-collage__side {
  background: var(--home-bg-secondary);
  border: 1px solid var(--home-border);
  position: relative;
  padding: 30px 24px 24px;
}

.page-home .hero-collage__side::before {
  content: "STATUS / 指标";
  position: absolute;
  top: -9px;
  left: 20px;
  padding: 4px 10px;
  background: var(--home-gold);
  color: #0A0E13;
  font-size: 0.65rem;
  letter-spacing: 0.16em;
}

.page-home .hero-collage__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-left: 1px solid var(--home-border);
  border-top: 1px solid var(--home-border);
}

.page-home .hero-collage__stats .stat {
  padding: 16px 14px;
  border-right: 1px solid var(--home-border);
  border-bottom: 1px solid var(--home-border);
}

.page-home .hero-collage__stats .stat__value {
  display: block;
  font-family: var(--font-heading, Playfair Display, serif);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--home-gold);
  line-height: 1.2;
}

.page-home .hero-collage__stats .stat__label {
  display: block;
  margin-top: 6px;
  font-size: 0.74rem;
  color: var(--home-text-muted);
}

.page-home .hero-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-home .hero-index__link {
  font-size: 0.76rem;
  padding: 8px 12px;
  border: 1px solid var(--home-border);
  color: var(--home-text-secondary);
  background: transparent;
  letter-spacing: 0.04em;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-home .hero-index__link:hover {
  border-color: var(--home-gold);
  color: var(--home-gold);
}

.page-home .hero-collage__visual {
  margin: 48px 0 0;
  overflow: hidden;
  border: 1px solid var(--home-border);
  aspect-ratio: 3 / 2;
  background: var(--home-bg-secondary);
}

.page-home .hero-collage__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
  display: block;
}

/* ===== 版本断层 ===== */
.page-home .timeline-zone {
  padding: 92px 0 0;
}

.page-home .timeline-zone__head,
.page-home .dual-zone__head,
.page-home .start-zone__head,
.page-home .update-zone__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 18px;
}

.page-home .timeline-zone__en,
.page-home .dual-zone__en,
.page-home .start-zone__en,
.page-home .update-zone__en {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--home-text-muted);
}

.page-home .timeline-zone__canvas {
  margin-top: 42px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--home-gold) var(--home-bg-secondary);
  border-top: 1px solid var(--home-border);
  border-bottom: 1px solid var(--home-border);
  padding: 26px 8px 10px;
}

.page-home .timeline-zone__canvas::-webkit-scrollbar {
  height: 8px;
}

.page-home .timeline-zone__canvas::-webkit-scrollbar-track {
  background: var(--home-bg-secondary);
}

.page-home .timeline-zone__canvas::-webkit-scrollbar-thumb {
  background: var(--home-gold);
}

.page-home .timeline-zone__track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 16px;
  width: max-content;
  min-width: 100%;
}

.page-home .timeline-zone__track .timeline__item {
  position: relative;
  flex: 0 0 260px;
  width: 260px;
  padding: 20px 18px 28px;
  background: var(--home-bg-secondary);
  border: 1px solid var(--home-border);
  transition: border-color 0.3s ease, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-home .timeline-zone__track .timeline__item::before {
  content: "";
  display: block;
  width: 13px;
  height: 13px;
  background: var(--home-gold);
  transform: rotate(45deg);
  margin-bottom: 18px;
}

.page-home .timeline-zone__track .timeline__item:hover {
  border-color: var(--home-gold);
  transform: translateY(-4px);
}

.page-home .timeline-zone__track .timeline__date {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--home-gold);
  text-transform: uppercase;
}

.page-home .timeline-zone__track .timeline__title {
  font-family: var(--font-heading, Playfair Display, serif);
  font-size: 1.22rem;
  margin: 10px 0 10px;
  line-height: 1.3;
}

.page-home .timeline-zone__track .timeline__text {
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--home-text-secondary);
  margin: 0;
}

.page-home .timeline-zone__footer {
  display: grid;
  gap: 30px;
  padding: 54px 0 96px;
}

.page-home .timeline-zone__figure {
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--home-border);
  background: var(--home-bg-secondary);
}

.page-home .timeline-zone__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-home .timeline-zone__note p {
  font-size: 0.92rem;
  line-height: 2;
  color: var(--home-text-secondary);
  margin: 0 0 18px;
}

.page-home .timeline-zone__note .btn {
  margin-top: 10px;
}

/* ===== 双端导航 ===== */
.page-home .dual-zone {
  padding: 0 0 96px;
}

.page-home .dual-zone__grid {
  display: grid;
  gap: 34px;
  margin-top: 42px;
}

.page-home .dual-zone__cards {
  display: grid;
  gap: 20px;
}

.page-home .dual-card {
  background: var(--home-bg-secondary);
  border: 1px solid var(--home-border);
  padding: 30px 26px 28px;
  clip-path: var(--home-cutting);
  position: relative;
}

.page-home .dual-card::after {
  content: "◆";
  position: absolute;
  top: 18px;
  right: 20px;
  color: var(--home-gold);
  font-size: 0.7rem;
  opacity: 0.55;
}

.page-home .dual-card__title {
  font-family: var(--font-heading, Playfair Display, serif);
  font-size: 1.4rem;
  margin: 10px 0 12px;
  line-height: 1.3;
}

.page-home .dual-card__text {
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--home-text-secondary);
  margin: 0 0 16px;
}

.page-home .dual-card__link {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--home-gold);
  border-bottom: 1px solid transparent;
}

.page-home .dual-card__link:hover {
  border-bottom-color: var(--home-gold);
}

.page-home .dual-zone__visual {
  margin: 0;
  border: 1px solid var(--home-border);
  background: var(--home-bg-secondary);
  max-height: 860px;
  overflow: hidden;
}

.page-home .dual-zone__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ===== 新手上路 ===== */
.page-home .start-zone {
  padding: 0 0 96px;
}

.page-home .start-zone__grid {
  display: grid;
  gap: 34px;
  margin-top: 42px;
}

.page-home .start-zone__visual {
  margin: 0;
  border: 1px solid var(--home-border);
  background: var(--home-bg-secondary);
}

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

.page-home .start-steps {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
}

.page-home .start-steps__item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--home-border);
  align-items: flex-start;
}

.page-home .start-steps__num {
  font-family: var(--font-heading, Playfair Display, serif);
  color: var(--home-gold);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.4;
}

.page-home .start-steps__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--home-text-secondary);
}

.page-home .start-zone .panel {
  margin-top: 14px;
  background: var(--home-bg-secondary);
  border: 1px solid var(--home-border);
}

.page-home .start-zone .panel__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  width: 100%;
  background: transparent;
  border: none;
  padding: 18px 20px;
  cursor: pointer;
  font-family: var(--font-body, Inter, sans-serif);
  color: var(--home-text);
  font-size: 0.9rem;
  text-align: left;
}

.page-home .start-zone .panel__icon {
  color: var(--home-gold);
  font-size: 1.35rem;
  line-height: 1;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-home .start-zone .panel[data-open] .panel__icon {
  transform: rotate(45deg);
}

.page-home .start-zone .panel__body {
  padding: 0 20px 20px;
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--home-text-secondary);
}

.page-home .start-zone .panel__body-text {
  margin: 0;
}

/* ===== 更新动态 ===== */
.page-home .update-zone {
  padding: 0 0 120px;
}

.page-home .update-list {
  list-style: none;
  margin: 42px 0 30px;
  padding: 0;
  border-top: 2px solid var(--home-border);
}

.page-home .update-list__item {
  display: grid;
  gap: 6px;
  padding: 26px 0 26px 24px;
  border-bottom: 1px solid var(--home-border);
  border-left: 2px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-home .update-list__item:hover {
  border-left-color: var(--home-gold);
  background: linear-gradient(90deg, rgba(212, 175, 55, 0.04), transparent);
}

.page-home .update-list__title {
  font-family: var(--font-heading, Playfair Display, serif);
  font-size: 1.2rem;
  margin: 4px 0 0;
  line-height: 1.4;
}

.page-home .update-list__title a {
  color: var(--home-text);
  transition: color 0.2s ease;
}

.page-home .update-list__title a:hover {
  color: var(--home-gold);
}

.page-home .update-list__text {
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--home-text-secondary);
  margin: 0;
}

.page-home .update-zone__more {
  margin-top: 8px;
}

/* ===== 桌面布局 ===== */
@media (min-width: 900px) {
  .page-home .hero-collage {
    padding: 130px 0 56px;
  }

  .page-home .hero-collage__grid {
    grid-template-columns: repeat(12, 1fr);
    column-gap: 40px;
    align-items: start;
    min-height: 430px;
  }

  .page-home .hero-collage__main {
    grid-column: 1 / 8;
  }

  .page-home .hero-collage__side {
    grid-column: 9 / 13;
    margin-top: 8px;
  }

  .page-home .hero-collage__visual {
    grid-column: 1 / 13;
    margin-top: 8px;
  }

  .page-home .hero-collage__title {
    font-size: clamp(3rem, 4.6vw, 4.6rem);
  }

  .page-home .hero-collage__lede {
    font-size: 1rem;
  }

  .page-home .timeline-zone__canvas {
    padding-left: 12px;
    padding-right: 12px;
  }

  .page-home .timeline-zone__track {
    gap: 20px;
  }

  .page-home .timeline-zone__track .timeline__item {
    flex: 0 0 280px;
    width: 280px;
  }

  .page-home .timeline-zone__footer {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 56px;
    padding: 64px 0 112px;
  }

  .page-home .timeline-zone__note p {
    font-size: 0.95rem;
  }

  .page-home .dual-zone__grid {
    grid-template-columns: 1.05fr 0.72fr;
    gap: 56px;
    align-items: start;
  }

  .page-home .dual-zone__visual {
    max-height: 780px;
    position: sticky;
    top: 120px;
  }

  .page-home .start-zone__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
    align-items: start;
  }

  .page-home .start-zone__visual {
    position: sticky;
    top: 120px;
  }

  .page-home .update-list__item {
    grid-template-columns: 190px 1fr 2fr;
    gap: 28px;
    align-items: baseline;
  }

  .page-home .update-list__title {
    margin-top: 0;
  }

  .page-home .update-zone__more {
    margin-top: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition-duration: 0.01ms !important;
    animation: none !important;
  }
}