/* ===== 页面专属：.page-products ===== */
.page-products {
  --hero-min-height: 70vh;
  --tabs-border-color: rgba(212, 175, 55, 0.25);
  --panel-gap: 2.5rem;
  --index-width: 180px;
}

/* ---------- 首屏 ---------- */
.page-products .hero-section {
  position: relative;
  min-height: var(--hero-min-height);
  display: flex;
  align-items: center;
  background: var(--gradient-primary, linear-gradient(135deg, #2B0F4C, #4A1C74));
  overflow: hidden;
  padding: calc(var(--header-height, 56px) + 2rem) 0 3rem;
}

.page-products .hero-layout {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.page-products .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-light, #E5D9F2);
  margin-bottom: 2rem;
  opacity: 0.8;
}

.page-products .breadcrumb a {
  color: var(--color-accent, #D4AF37);
  text-decoration: none;
  transition: opacity var(--transition, 0.3s ease);
}

.page-products .breadcrumb a:hover {
  opacity: 0.75;
}

.page-products .breadcrumb .separator {
  font-size: 0.625rem;
  color: var(--color-accent, #D4AF37);
}

.page-products .hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 2.5rem;
  align-items: center;
}

.page-products .hero-text {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-products .hero-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 800;
  font-style: italic;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--color-accent, #D4AF37);
  line-height: 1.1;
  letter-spacing: 0.04em;
  margin: 0;
  text-shadow: 0 2px 20px rgba(212, 175, 55, 0.2);
}

.page-products .hero-sub {
  font-family: var(--font-mono, 'Courier New', monospace);
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-light, #E5D9F2);
  letter-spacing: 0.15em;
  opacity: 0.85;
  margin: 0;
}

.page-products .hero-desc {
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-light, #E5D9F2);
  max-width: 36em;
  margin: 0.5rem 0 0;
  opacity: 0.9;
}

.page-products .hero-visual {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-glow, 0 0 30px rgba(212, 175, 55, 0.15));
}

.page-products .hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  border-radius: 1rem;
}

.page-products .hero-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.08), transparent 50%);
  border-radius: 1rem;
}

/* ---------- 标签页区域 ---------- */
.page-products .tabs-section {
  padding: 4rem 0 3rem;
  background: var(--color-dark, #100520);
}

.page-products .tabs {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.page-products .tab-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.page-products .tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--tabs-border-color);
  margin-bottom: 2.5rem;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.page-products .tab-bar::-webkit-scrollbar {
  display: none;
}

.page-products .tab-label {
  flex: 0 0 auto;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-light, #E5D9F2);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--transition, 0.3s ease), border-color var(--transition, 0.3s ease), background var(--transition, 0.3s ease);
  white-space: nowrap;
  user-select: none;
}

.page-products .tab-label:hover {
  color: var(--color-accent, #D4AF37);
  background: rgba(212, 175, 55, 0.04);
}

/* 当前激活的标签：通过 radio :checked 控制 */
.page-products #tab-fee:checked ~ .tab-bar label[for="tab-fee"],
.page-products #tab-steps:checked ~ .tab-bar label[for="tab-steps"],
.page-products #tab-register:checked ~ .tab-bar label[for="tab-register"],
.page-products #tab-benefits:checked ~ .tab-bar label[for="tab-benefits"] {
  color: var(--color-accent, #D4AF37);
  border-bottom-color: var(--color-accent, #D4AF37);
  background: rgba(212, 175, 55, 0.06);
}

/* 面板容器 */
.page-products .tab-panels {
  position: relative;
  min-height: 320px;
}

.page-products .tab-panel {
  display: none;
  animation: tabFadeIn 0.4s ease;
}

@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 默认显示第一个面板，radio 切换时覆盖 */
.page-products #tab-fee:checked ~ .tab-panels #panel-fee,
.page-products #tab-steps:checked ~ .tab-panels #panel-steps,
.page-products #tab-register:checked ~ .tab-panels #panel-register,
.page-products #tab-benefits:checked ~ .tab-panels #panel-benefits {
  display: block;
}

/* ---------- 面板内部布局 ---------- */
.page-products .tab-panel {
  padding: 1rem 0;
}

.page-products .chapter-number {
  font-family: var(--font-mono, 'Courier New', monospace);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--color-highlight, #C0392B);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 0.25rem;
  letter-spacing: -0.03em;
}

.page-products .chapter-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 800;
  font-style: italic;
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  color: var(--color-accent, #D4AF37);
  margin: 0 0 1.75rem;
  letter-spacing: 0.02em;
}

.page-products .panel-layout {
  display: grid;
  grid-template-columns: var(--index-width) 1fr;
  gap: var(--panel-gap);
  align-items: start;
}

/* ---------- 左侧索引 ---------- */
.page-products .panel-index {
  background: rgba(75, 28, 116, 0.25);
  border-radius: 0.75rem;
  padding: 1.25rem 1rem;
  border: 1px solid rgba(212, 175, 55, 0.1);
}

.page-products .index-list,
.page-products .index-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-products .index-item,
.page-products .step-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-size: 0.9rem;
  color: var(--color-light, #E5D9F2);
  padding: 0.5rem 0.5rem;
  border-radius: 0.4rem;
  transition: background 0.2s ease, transform 0.2s ease;
  cursor: default;
}

.page-products .index-item:hover,
.page-products .step-item:hover {
  background: rgba(212, 175, 55, 0.08);
  transform: translateX(4px);
}

/* 阶梯标记 —— 用 box-shadow 模拟金色台阶 */
.page-products .index-marker {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: var(--color-accent, #D4AF37);
  opacity: calc(0.4 + 0.2 * var(--level, 1));
  flex-shrink: 0;
  box-shadow: 0 0 6px rgba(212, 175, 55, 0.3);
}

.page-products .index-label {
  font-weight: 500;
  letter-spacing: 0.02em;
}

.page-products .index-icon {
  font-size: 1.1rem;
  color: var(--color-accent, #D4AF37);
  flex-shrink: 0;
  width: 1.2rem;
  text-align: center;
}

/* 步骤编号 */
.page-products .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-highlight, #C0392B);
  color: #fff;
  font-family: var(--font-mono, 'Courier New', monospace);
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}

.page-products .step-label {
  font-weight: 500;
}

/* ---------- 右侧详情 ---------- */
.page-products .panel-detail {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-products .detail-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  object-fit: cover;
  border: 1px solid rgba(212, 175, 55, 0.08);
}

.page-products .detail-img--compact {
  max-width: 300px;
}

.page-products .detail-text {
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-light, #E5D9F2);
  margin: 0;
  max-width: 48em;
}

/* 可展开详情 */
.page-products .detail-expand {
  border: 1px solid rgba(212, 175, 55, 0.12);
  border-radius: 0.5rem;
  background: rgba(75, 28, 116, 0.12);
  overflow: hidden;
  margin-top: 0.5rem;
}

.page-products .expand-trigger {
  padding: 0.75rem 1rem;
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-accent, #D4AF37);
  cursor: pointer;
  transition: background 0.2s ease;
  list-style: none;
}

.page-products .expand-trigger::-webkit-details-marker {
  display: none;
}

.page-products .expand-trigger:hover {
  background: rgba(212, 175, 55, 0.06);
}

.page-products .expand-trigger::before {
  content: "▶ ";
  display: inline-block;
  transition: transform 0.25s ease;
  font-size: 0.7rem;
  margin-right: 0.4rem;
  color: var(--color-accent, #D4AF37);
}

.page-products details[open] .expand-trigger::before {
  transform: rotate(90deg);
}

.page-products .expand-content {
  padding: 0 1rem 1rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-light, #E5D9F2);
  border-top: 1px solid rgba(212, 175, 55, 0.08);
  padding-top: 0.75rem;
}

.page-products .expand-content p {
  margin: 0;
}

/* ---------- 底部连接区域 ---------- */
.page-products .bottom-connect {
  padding: 3rem 0 4rem;
  background: var(--gradient-primary, linear-gradient(135deg, #2B0F4C, #4A1C74));
}

.page-products .connect-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: start;
}

.page-products .connect-card {
  background: rgba(16, 5, 32, 0.45);
  border-radius: 0.75rem;
  padding: 1.75rem;
  border: 1px solid rgba(212, 175, 55, 0.1);
  backdrop-filter: blur(4px);
}

.page-products .trust-statement {
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-accent, #D4AF37);
  margin: 0;
  padding-left: 1rem;
  border-left: 3px solid var(--color-accent, #D4AF37);
}

.page-products .connect-heading {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 700;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--color-accent, #D4AF37);
  margin: 0 0 1rem;
}

.page-products .connect-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-products .connect-link {
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-size: 0.95rem;
  color: var(--color-light, #E5D9F2);
  text-decoration: none;
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
  display: inline-block;
}

.page-products .connect-link:hover {
  color: var(--color-accent, #D4AF37);
  border-bottom-color: rgba(212, 175, 55, 0.25);
}

/* ========== 移动端优先：窄屏适配 ========== */
@media (max-width: 768px) {
  .page-products .hero-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .page-products .hero-section {
    min-height: auto;
    padding-top: calc(var(--header-height, 56px) + 1rem);
    padding-bottom: 2rem;
  }

  .page-products .hero-visual {
    order: -1;
  }

  .page-products .hero-img {
    max-height: 240px;
  }

  .page-products .hero-title {
    font-size: clamp(2rem, 8vw, 2.8rem);
  }

  .page-products .tab-bar {
    gap: 0.25rem;
    margin-bottom: 1.5rem;
  }

  .page-products .tab-label {
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
    flex: 1 1 auto;
    text-align: center;
  }

  .page-products .panel-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .page-products .panel-index {
    padding: 1rem;
  }

  .page-products .index-list,
  .page-products .index-steps {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
  }

  .page-products .index-item,
  .page-products .step-item {
    font-size: 0.85rem;
    padding: 0.35rem 0.4rem;
  }

  .page-products .chapter-number {
    font-size: 2.5rem;
  }

  .page-products .chapter-title {
    font-size: 1.35rem;
    margin-bottom: 1.25rem;
  }

  .page-products .detail-img--compact {
    max-width: 200px;
  }

  .page-products .connect-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .page-products .bottom-connect {
    padding: 2rem 0 3rem;
  }

  .page-products .trust-statement {
    font-size: 0.95rem;
    padding-left: 0.75rem;
  }

  .page-products .connect-card {
    padding: 1.25rem;
  }

  .page-products .tab-panels {
    min-height: 240px;
  }
}

/* 桌面微调 */
@media (min-width: 769px) {
  .page-products .hero-img {
    max-height: 420px;
  }

  .page-products .panel-layout {
    grid-template-columns: var(--index-width) 1fr;
  }
}

.page-products {
  --level: 1;
}