.page-home {
  --hero-min-height: 80vh;
  --benefits-gap: 2rem;
  --help-grid-gap: 1.5rem;
  --card-radius: 12px;
  --border-thick-home: 3px;
  background-color: var(--color-primary);
  color: var(--color-text-primary);
  font-family: "Noto Sans SC", sans-serif;
  line-height: 1.8;
}

/* ===== 框景首屏 ===== */
.page-home .hero-framed {
  position: relative;
  min-height: var(--hero-min-height);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 2rem 1rem;
}

.page-home .hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.page-home .hero-frame {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  border: var(--border-thick-home) solid var(--color-border);
  clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 0% 100%, 0% 0%, 2rem 0%, 2rem calc(100% - 2rem), calc(100% - 2rem) calc(100% - 2rem), calc(100% - 2rem) 2rem, 2rem 2rem, 2rem 0%);
  z-index: 1;
  pointer-events: none;
}

@media (min-width: 768px) {
  .page-home .hero-frame {
    top: 2rem;
    left: 2rem;
    right: 2rem;
    bottom: 2rem;
    clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 0% 100%, 0% 0%, 3rem 0%, 3rem calc(100% - 3rem), calc(100% - 3rem) calc(100% - 3rem), calc(100% - 3rem) 3rem, 3rem 3rem, 3rem 0%);
  }
}

.page-home .hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}

.page-home .hero-ornament {
  display: block;
  width: 200px;
  height: 40px;
  margin: 0 auto 2rem;
}

.page-home .hero-title {
  font-family: "Inter", "SF Pro Display", sans-serif;
  font-weight: 900;
  font-size: clamp(2.5rem, 8vw, 5rem);
  letter-spacing: 0.02em;
  margin: 0 0 0.5rem;
  text-transform: uppercase;
  color: var(--color-text-primary);
}

.page-home .hero-tagline {
  font-family: "Inter", "SF Pro Display", sans-serif;
  font-weight: 300;
  font-size: clamp(1rem, 3vw, 1.5rem);
  letter-spacing: 0.3em;
  margin: 0 0 2rem;
  color: var(--color-secondary);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.page-home .hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2rem;
  font-family: "Inter", "SF Pro Display", sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  color: var(--color-primary);
  background: var(--color-accent);
  border: var(--border-thick-home) solid var(--color-accent);
  border-radius: 0;
  transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.page-home .hero-btn:hover,
.page-home .hero-btn:focus-visible {
  background: transparent;
  color: var(--color-accent);
  box-shadow: 0 0 20px var(--color-shadow), inset 0 0 20px rgba(0, 245, 255, 0.2);
  transform: translateY(-2px);
}

.page-home .hero-btn:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.page-home .hero-btn-icon {
  display: inline-flex;
  align-items: center;
}

.page-home .hero-hint {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* ===== 会员权益概览 ===== */
.page-home .benefits-preview {
  padding: 4rem 1rem;
  background: var(--color-surface-light);
}

.page-home .benefits-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-home .section-label {
  font-family: "Inter", "SF Pro Display", sans-serif;
  font-weight: 700;
  font-size: 1.75rem;
  letter-spacing: 0.02em;
  margin: 0 0 1rem;
  color: var(--color-accent);
  position: relative;
  padding-left: 1rem;
  border-left: 4px solid var(--color-accent);
}

.page-home .benefits-desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.page-home .benefits-card-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--benefits-gap);
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .page-home .benefits-card-group {
    grid-template-columns: 1fr 1fr;
  }
}

.page-home .benefits-card {
  background: var(--color-surface-glass);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
  cursor: default;
}

.page-home .benefits-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 15px var(--color-shadow);
}

.page-home .benefits-card-img {
  margin-bottom: 1rem;
  overflow: hidden;
  position: relative;
  aspect-ratio: 2 / 1;
}

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

.page-home .benefits-card-title {
  font-family: "Inter", "SF Pro Display", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  color: var(--color-text-primary);
}

.page-home .benefits-card-text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.page-home .btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: "Inter", "SF Pro Display", sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--color-accent);
  border: var(--border-thick-home) solid var(--color-border);
  background: transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.page-home .btn:hover,
.page-home .btn:focus-visible {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}

.page-home .btn:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

/* ===== 帮助文档快速入口 ===== */
.page-home .help-quick {
  padding: 4rem 1rem;
  background: var(--color-primary);
}

.page-home .help-quick-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-home .help-quick-desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 500px;
  margin-bottom: 2rem;
}

.page-home .help-quick-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--help-grid-gap);
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .page-home .help-quick-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.page-home .help-quick-card {
  display: block;
  padding: 2rem 1.5rem;
  background: var(--color-surface-light);
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.page-home .help-quick-card:hover,
.page-home .help-quick-card:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 0 15px var(--color-shadow);
  transform: translateY(-3px);
}

.page-home .help-quick-card:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.page-home .help-quick-card-icon {
  display: block;
  margin-bottom: 0.75rem;
}

.page-home .help-quick-card-title {
  font-family: "Inter", "SF Pro Display", sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
  color: var(--color-text-primary);
}

.page-home .help-quick-card-text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

.page-home .btn-accent {
  display: inline-block;
  padding: 0.9rem 2rem;
  font-family: "Inter", "SF Pro Display", sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  color: var(--color-primary);
  background: var(--color-accent);
  border: var(--border-thick-home) solid var(--color-accent);
  transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.page-home .btn-accent:hover,
.page-home .btn-accent:focus-visible {
  background: transparent;
  color: var(--color-accent);
  box-shadow: 0 0 20px var(--color-shadow);
}

.page-home .btn-accent:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

/* ===== 最新更新 ===== */
.page-home .entry-update {
  padding: 4rem 1rem;
  background: var(--color-surface-light);
  border-top: 1px solid var(--color-border);
}

.page-home .entry-update-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-home .entry-update-desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: 1.5rem;
}

.page-home .entry-update-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.page-home .entry-update-list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.5rem;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.page-home .entry-update-list li::before {
  content: "◆";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-size: 0.7rem;
  top: 0.7rem;
}

.page-home .entry-update-list a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.page-home .entry-update-list a:hover {
  color: var(--color-text-primary);
}

.page-home .entry-update-note {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.page-home .entry-update-note a {
  color: var(--color-accent);
  text-decoration: underline;
}

/* ===== 响应式微调 ===== */
@media (max-width: 400px) {
  .page-home .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-home .hero-btn {
    justify-content: center;
  }

  .page-home .benefits-card,
  .page-home .help-quick-card {
    padding: 1rem;
  }
}

/* ===== 打印 ===== */
@media print {
  .page-home .hero-canvas,
  .page-home .hero-frame {
    display: none;
  }

  .page-home .hero-framed {
    min-height: auto;
    padding: 2rem 0;
  }
}