.page-home {
  --page-home-hero-glow: 0 0 40px rgba(255, 215, 0, 0.3);
  --page-home-card-glow: 0 0 20px rgba(138, 43, 226, 0.4);
  --page-home-gradient-gold: linear-gradient(135deg, #FFD700, #FFA500);
  --page-home-gradient-blue: linear-gradient(135deg, #00BFFF, #1E90FF);
  --page-home-space-section: clamp(48px, 8vw, 96px);
  --page-home-space-inner: clamp(24px, 4vw, 48px);
  background: var(--c-bg-dark);
  color: var(--c-text-white);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 首屏 Hero */
.page-home__hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-bg-dark);
}

.page-home__hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home__hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
  filter: saturate(1.2) contrast(1.1);
}

.page-home__hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 10, 10, 0.85) 40%, rgba(10, 10, 10, 0.5) 100%);
  z-index: 1;
}

.page-home__hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--space-sm);
  padding-right: var(--space-sm);
}

.page-home__hero-text {
  flex: 1 1 400px;
  max-width: 640px;
}

.page-home__hero-label {
  display: inline-block;
  margin-bottom: var(--space-sm);
  background: rgba(255, 215, 0, 0.15);
  border: 1px solid var(--c-neon-gold);
  color: var(--c-neon-gold);
  padding: 4px 12px;
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.page-home__hero-title {
  font-family: var(--font-heading);
  font-size: var(--fs-hero);
  line-height: 1.1;
  margin: 0 0 var(--space-sm);
  background: var(--page-home-gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 12px rgba(255, 215, 0, 0.5));
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.page-home__hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--c-text-light);
  margin: 0 0 var(--space-md);
  line-height: 1.5;
}

.page-home__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.page-home__hero-btn {
  flex: 0 1 auto;
  min-width: 180px;
  text-align: center;
  transition: box-shadow var(--transition-medium), transform var(--transition-medium);
}

.page-home__hero-btn:hover {
  box-shadow: var(--page-home-hero-glow);
  transform: translateY(-2px);
}

.page-home__hero-card {
  flex: 1 1 280px;
  max-width: 360px;
  background: rgba(26, 26, 26, 0.9);
  border: 1px solid var(--c-border-subtle);
  backdrop-filter: blur(8px);
  padding: var(--space-md);
  transition: border-color var(--transition-medium), box-shadow var(--transition-medium);
}

.page-home__hero-card:hover {
  border-color: var(--c-neon-purple);
  box-shadow: var(--page-home-card-glow);
}

.page-home__hero-card-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.page-home__hero-card-num {
  font-family: var(--font-mono);
  font-size: var(--fs-h2);
  color: var(--c-neon-gold);
  line-height: 1;
}

.page-home__hero-card-title {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  margin: 0;
  color: var(--c-text-white);
}

.page-home__hero-card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.page-home__hero-card-list li {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-body);
  color: var(--c-text-light);
}

.page-home__hero-card-link {
  color: var(--c-neon-blue);
  text-decoration: none;
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color var(--transition-fast);
  align-self: flex-start;
}

.page-home__hero-card-link:hover {
  color: var(--c-neon-gold);
}

/* 通用区块头部 */
.page-home__section-header {
  margin-bottom: var(--space-lg);
  position: relative;
}

.page-home__section-header--light {
  background: var(--c-bg-warm);
  padding: var(--space-md);
  margin-left: calc(-1 * var(--space-sm));
  margin-right: calc(-1 * var(--space-sm));
}

@media (min-width: 768px) {
  .page-home__section-header--light {
    margin-left: 0;
    margin-right: 0;
  }
}

.page-home__section-header .section-number {
  font-family: var(--font-mono);
  font-size: var(--fs-h2);
  color: var(--c-neon-gold);
  display: block;
  margin-bottom: var(--space-xs);
}

.page-home__section-header h2 {
  font-family: var(--font-heading);
  font-size: var(--fs-h2);
  margin: 0 0 var(--space-xs);
  color: var(--c-text-white);
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.page-home__section-header--light h2 {
  color: var(--c-text-dark);
}

.page-home__section-header--light .section-number {
  color: var(--c-neon-purple);
}

.page-home__section-desc {
  color: var(--c-text-light);
  font-size: var(--fs-body);
  max-width: 600px;
  margin: 0;
}

.page-home__section-header--light .page-home__section-desc {
  color: var(--c-text-dark);
}

/* 版本对比区 */
.page-home__version {
  padding: var(--page-home-space-section) 0;
  background: var(--c-bg-dark);
}

.page-home__version-grid {
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.page-home__version-card {
  background: var(--c-bg-deep);
  border: 1px solid var(--c-border-subtle);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: border-color var(--transition-medium), box-shadow var(--transition-medium);
}

.page-home__version-card:hover {
  border-color: var(--c-neon-gold);
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.15);
}

.page-home__version-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.page-home__version-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--c-bg-dark);
  border: 2px solid var(--c-neon-purple);
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  color: var(--c-neon-purple);
  text-transform: uppercase;
  flex-shrink: 0;
}

.page-home__version-card--ios .page-home__version-icon {
  border-color: var(--c-neon-blue);
  color: var(--c-neon-blue);
}

.page-home__version-card .card__title {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  margin: 0;
  color: var(--c-text-white);
}

.page-home__version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.page-home__version-list li {
  padding: var(--space-xs) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--c-text-light);
  font-size: var(--fs-body);
}

.page-home__version-list li::before {
  content: "▶";
  color: var(--c-neon-gold);
  margin-right: var(--space-xs);
  font-size: 0.75em;
}

.page-home__version-card-footer {
  margin-top: auto;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--c-border-subtle);
}

.page-home__version-image {
  margin-top: var(--space-md);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-home__version-image img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--c-border-subtle);
}

/* 快速注册区 */
.page-home__register {
  padding: var(--page-home-space-section) 0;
  background: var(--c-bg-warm);
  color: var(--c-text-dark);
}

.page-home__steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 700px;
  margin: 0 auto var(--space-lg);
}

.page-home__step {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--c-bg-warm-light);
  border: 1px solid rgba(138, 43, 226, 0.15);
  transition: border-color var(--transition-medium), box-shadow var(--transition-medium);
}

.page-home__step:hover {
  border-color: var(--c-neon-purple);
  box-shadow: 0 0 16px rgba(138, 43, 226, 0.1);
}

.page-home__step-num {
  font-family: var(--font-mono);
  font-size: var(--fs-h2);
  color: var(--c-neon-blue);
  line-height: 1;
  flex-shrink: 0;
  min-width: 48px;
}

.page-home__step-content {
  flex: 1;
}

.page-home__step-title {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  margin: 0 0 var(--space-xs);
  color: var(--c-text-dark);
}

.page-home__step-text {
  color: var(--c-text-dark);
  margin: 0 0 var(--space-xs);
  font-size: var(--fs-body);
}

.page-home__step-link {
  color: var(--c-neon-purple);
  text-decoration: none;
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color var(--transition-fast);
}

.page-home__step-link:hover {
  color: var(--c-neon-gold);
}

.page-home__register-image {
  max-width: 600px;
  margin: 0 auto;
}

.page-home__register-image img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--c-border-subtle);
}

/* 最新下载区 */
.page-home__download {
  padding: var(--page-home-space-section) 0;
  background: var(--c-bg-dark);
}

.page-home__download-content {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  align-items: center;
  justify-content: space-between;
  max-width: 800px;
  margin: 0 auto;
}

.page-home__download-info {
  flex: 1 1 280px;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.page-home__download-version,
.page-home__download-date {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.page-home__download-version-num {
  font-size: var(--fs-h3);
  color: var(--c-neon-gold);
}

.page-home__download-btn {
  text-align: center;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--fs-body);
  transition: box-shadow var(--transition-medium), transform var(--transition-medium);
}

.page-home__download-btn:hover {
  box-shadow: var(--page-home-hero-glow);
  transform: translateY(-2px);
}

.page-home__download-note {
  color: var(--c-text-light);
  font-size: var(--fs-small);
  margin: 0;
}

.page-home__download-qr {
  flex: 0 0 200px;
}

.page-home__download-qr img {
  width: 100%;
  height: auto;
  display: block;
  border: 2px solid var(--c-neon-purple);
}

/* 首次结算说明区 */
.page-home__settlement {
  padding: var(--page-home-space-section) 0;
  background: var(--c-bg-warm);
  color: var(--c-text-dark);
}

.page-home__settlement-card {
  background: var(--c-bg-warm-light);
  border: 1px solid var(--c-neon-gold);
  padding: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: flex-start;
  max-width: 700px;
  margin: 0 auto;
}

.page-home__settlement-badge {
  flex-shrink: 0;
}

.page-home__settlement-text {
  flex: 1;
}

.page-home__settlement-text p {
  margin: 0 0 var(--space-sm);
  line-height: 1.7;
}

.page-home__settlement-link {
  color: var(--c-neon-purple);
  text-decoration: none;
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color var(--transition-fast);
}

.page-home__settlement-link:hover {
  color: var(--c-neon-gold);
}

/* 面包屑 */
.page-home__breadcrumb {
  padding: var(--space-sm) 0;
  background: var(--c-bg-dark);
  border-top: 1px solid var(--c-border-subtle);
}

.page-home__breadcrumb .breadcrumb {
  justify-content: center;
}

/* 响应式 */
@media (max-width: 767px) {
  .page-home__hero {
    min-height: auto;
    padding: var(--space-xl) 0;
  }

  .page-home__hero-content {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .page-home__hero-text {
    max-width: 100%;
  }

  .page-home__hero-actions {
    justify-content: center;
  }

  .page-home__hero-card {
    max-width: 100%;
  }

  .page-home__version-grid {
    grid-template-columns: 1fr;
  }

  .page-home__steps {
    gap: var(--space-sm);
  }

  .page-home__step {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-home__download-content {
    flex-direction: column;
    text-align: center;
  }

  .page-home__download-qr {
    flex-basis: auto;
  }

  .page-home__settlement-card {
    flex-direction: column;
  }
}

@media (min-width: 768px) and (max-width: 1199px) {
  .page-home__hero-content {
    gap: var(--space-md);
  }

  .page-home__hero-card {
    max-width: 300px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .page-home .fade-in {
    opacity: 1;
    transform: none;
  }

  .page-home__hero-btn:hover,
  .page-home__download-btn:hover,
  .page-home__step:hover,
  .page-home__version-card:hover,
  .page-home__hero-card:hover {
    transform: none;
    box-shadow: none;
  }
}

/* Fade-in 动画基础 */
.page-home .fade-in {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.page-home .fade-in[data-delay] {
  transition-delay: attr(data-delay s, 0s);
}

/* 栅格覆盖 */
.page-home .grid--2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .page-home .grid--2 {
    grid-template-columns: 1fr 1fr;
  }
}

/* 容器覆盖 */
.page-home .container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--space-sm);
  padding-right: var(--space-sm);
}

/* 按钮覆盖 */
.page-home .btn--primary {
  background: var(--c-neon-purple);
  color: var(--c-text-white);
  border: 2px solid var(--c-neon-purple);
}

.page-home .btn--primary:hover {
  background: transparent;
  color: var(--c-neon-purple);
  box-shadow: 0 0 16px rgba(138, 43, 226, 0.5);
}

.page-home .btn--outline {
  background: transparent;
  color: var(--c-neon-blue);
  border: 2px solid var(--c-neon-blue);
}

.page-home .btn--outline:hover {
  background: var(--c-neon-blue);
  color: var(--c-bg-dark);
  box-shadow: 0 0 16px rgba(0, 191, 255, 0.5);
}

.page-home .btn--ghost {
  background: transparent;
  color: var(--c-neon-purple);
  border: none;
  padding: var(--space-xs) 0;
}

.page-home .btn--ghost:hover {
  text-shadow: 0 0 8px rgba(138, 43, 226, 0.5);
}

/* 标签覆盖 */
.page-home .tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.page-home .tag--gold {
  background: rgba(255, 215, 0, 0.15);
  border: 1px solid var(--c-neon-gold);
  color: var(--c-neon-gold);
}

.page-home .tag--blue {
  background: rgba(0, 191, 255, 0.15);
  border: 1px solid var(--c-neon-blue);
  color: var(--c-neon-blue);
}

.page-home .tag--purple {
  background: rgba(138, 43, 226, 0.15);
  border: 1px solid var(--c-neon-purple);
  color: var(--c-neon-purple);
}

/* 面包屑覆盖 */
.page-home .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--fs-small);
  color: var(--c-text-light);
}

.page-home .breadcrumb li {
  display: flex;
  align-items: center;
}

.page-home .breadcrumb li::after {
  content: "/";
  margin-left: var(--space-xs);
  color: var(--c-neon-gold);
}

.page-home .breadcrumb li:last-child::after {
  content: none;
}

.page-home .breadcrumb a {
  color: var(--c-neon-blue);
  text-decoration: none;
}

.page-home .breadcrumb a:hover {
  color: var(--c-neon-gold);
}

.page-home .breadcrumb [aria-current="page"] {
  color: var(--c-neon-gold);
}