.page-products {
  --page-red: #E63946;
  --page-blue: #1D3557;
  --page-gold: #F4A261;
  --page-bg-light: #F8F9FA;
  --page-dark: #1A1A2E;
  --page-text: #1D3557;
  --page-text-secondary: #6C757D;
  --page-text-light: #FFFFFF;
  --page-radius: 16px;
  --page-radius-sm: 8px;
  --page-shadow: 0 4px 20px rgba(0,0,0,0.08);
  --page-shadow-hover: 0 8px 30px rgba(0,0,0,0.15);
  --page-transition: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* ===== 面包屑 ===== */
.page-products .breadcrumbs {
  padding-top: 1.5rem;
  padding-bottom: 0;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--page-text-secondary);
}
.page-products .breadcrumbs__list {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}
.page-products .breadcrumbs__list li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--page-text-secondary);
  opacity: 0.5;
}
.page-products .breadcrumbs__list a {
  color: var(--page-blue);
  text-decoration: none;
  transition: opacity var(--page-transition);
}
.page-products .breadcrumbs__list a:hover {
  opacity: 0.7;
}

/* ===== 首屏 Hero ===== */
.page-products .hero {
  position: relative;
  background: linear-gradient(135deg, #1A1A2E 0%, #16213E 50%, #0F3460 100%);
  border-radius: 0 0 var(--page-radius) var(--page-radius);
  padding: 3rem 0 4rem;
  overflow: hidden;
  margin-bottom: 2rem;
}
.page-products .hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}
.page-products .hero__title {
  font-family: var(--font-heading-bold);
  font-size: clamp(2.5rem, 6vw, 4rem);
  color: var(--page-text-light);
  margin: 0 0 0.75rem;
  letter-spacing: 0.02em;
  line-height: 1.1;
}
.page-products .hero__subtitle {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.65;
  max-width: 660px;
  margin-bottom: 1.5rem;
}
.page-products .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.page-products .hero__visual {
  display: flex;
  gap: 1.5rem;
  justify-content: flex-start;
}
.page-products .hero__stat {
  text-align: center;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(4px);
  padding: 1rem 1.5rem;
  border-radius: var(--page-radius);
  border: 1px solid rgba(255,255,255,0.15);
}
.page-products .hero__stat-number {
  display: block;
  font-family: var(--font-heading-bold);
  font-size: 2.2rem;
  color: var(--page-gold);
  line-height: 1.2;
}
.page-products .hero__stat-label {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.75);
}
.page-products .hero__ribbon {
  position: absolute;
  right: -60px;
  top: 30px;
  width: 200px;
  height: 8px;
  background: var(--page-red);
  transform: rotate(35deg);
  opacity: 0.3;
}

/* ===== 通用章节头 ===== */
.page-products .section__header {
  margin-bottom: 2.5rem;
}
.page-products .section__number {
  display: inline-block;
  font-family: var(--font-heading-bold);
  font-size: 0.85rem;
  color: var(--page-gold);
  letter-spacing: 0.15em;
  margin-bottom: 0.5rem;
  border-left: 4px solid var(--page-red);
  padding-left: 0.75rem;
}
.page-products .section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--page-text);
  margin: 0 0 0.5rem;
  line-height: 1.2;
}
.page-products .section__desc {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--page-text-secondary);
  max-width: 600px;
  line-height: 1.6;
}

/* ===== 核心功能卡片 (宽章节) ===== */
.page-products .features {
  padding: 3rem 0;
}
.page-products .features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

/* 翻转卡片 */
.page-products .flip-card {
  perspective: 1200px;
  height: 480px;
}
.page-products .flip-card__trigger {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.page-products .flip-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
  transform-style: preserve-3d;
  border-radius: var(--page-radius);
  box-shadow: var(--page-shadow);
}
.page-products .flip-card__trigger:checked + .flip-card__inner {
  transform: rotateY(180deg);
}
.page-products .flip-card__front,
.page-products .flip-card__back {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--page-radius);
  background: #fff;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.page-products .flip-card__back {
  transform: rotateY(180deg);
  background: linear-gradient(145deg, #fff 0%, #f5f7fa 100%);
}
.page-products .flip-card__img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}
.page-products .flip-card__body {
  padding: 1.25rem 1.5rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.page-products .flip-card__icon {
  margin-bottom: 0.5rem;
}
.page-products .flip-card__title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: var(--page-text);
  margin: 0 0 0.35rem;
}
.page-products .flip-card__desc {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--page-text-secondary);
  line-height: 1.5;
  flex: 1;
}
.page-products .flip-card__toggle {
  align-self: flex-start;
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--page-red);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: border-color var(--page-transition), color var(--page-transition);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  padding: 0.25rem 0;
}
.page-products .flip-card__toggle:hover {
  border-color: var(--page-red);
}

/* 背面 */
.page-products .flip-card__back-body {
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.page-products .flip-card__back-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--page-text);
  margin: 0 0 1rem;
}
.page-products .flip-card__back-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  flex: 1;
}
.page-products .flip-card__back-list li {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--page-text-secondary);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--page-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.page-products .flip-card__back-list li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--page-red);
  flex-shrink: 0;
}
.page-products .flip-card__back-toggle {
  align-self: flex-start;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--page-blue);
  cursor: pointer;
  background: none;
  border: 1px solid var(--page-border);
  border-radius: var(--page-radius-sm);
  padding: 0.4rem 1.2rem;
  transition: background var(--page-transition), color var(--page-transition);
}
.page-products .flip-card__back-toggle:hover {
  background: var(--page-blue);
  color: #fff;
  border-color: var(--page-blue);
}

/* ===== 使用步骤 (窄章节) ===== */
.page-products .steps {
  padding: 3rem 0;
  background: var(--page-bg-light);
  border-radius: var(--page-radius);
  margin: 2rem 0;
}
.page-products .steps__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}
.page-products .steps__flow {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  position: relative;
}
.page-products .steps__flow::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--page-red), var(--page-gold));
  border-radius: 2px;
}
.page-products .steps__item {
  position: relative;
  padding-left: 3.5rem;
  padding-bottom: 2.2rem;
}
.page-products .steps__item:last-child {
  padding-bottom: 0;
}
.page-products .steps__badge {
  position: absolute;
  left: 0;
  top: 0;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--page-blue);
  color: #fff;
  font-family: var(--font-heading-bold);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 4px rgba(230,57,70,0.15);
  z-index: 1;
}
.page-products .steps__item:hover .steps__badge {
  background: var(--page-red);
  transform: scale(1.08);
  transition: background var(--page-transition), transform var(--page-transition);
}
.page-products .steps__item-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--page-text);
  margin: 0 0 0.25rem;
}
.page-products .steps__item-desc {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--page-text-secondary);
  line-height: 1.55;
  margin: 0;
}
.page-products .steps__fav {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  border: 2px solid var(--page-gold);
  background: transparent;
  color: var(--page-gold);
  font-family: var(--font-body);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background var(--page-transition), color var(--page-transition);
  animation: pulse-fav 2s ease-in-out infinite;
}
.page-products .steps__fav:hover {
  background: var(--page-gold);
  color: #fff;
  animation-play-state: paused;
}
@keyframes pulse-fav {
  0%, 100% { box-shadow: 0 0 0 0 rgba(244,162,97,0.4); }
  50% { box-shadow: 0 0 0 8px rgba(244,162,97,0); }
}
.page-products .steps__visual {
  display: flex;
  justify-content: center;
}
.page-products .steps__img {
  width: 200px;
  height: 400px;
  object-fit: cover;
  border-radius: var(--page-radius);
  box-shadow: var(--page-shadow);
}

/* ===== 数据覆盖 (宽章节) ===== */
.page-products .leagues {
  padding: 3rem 0;
}
.page-products .leagues__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}
.page-products .leagues__card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: #fff;
  padding: 1.25rem 1.5rem;
  border-radius: var(--page-radius);
  box-shadow: var(--page-shadow);
  transition: transform var(--page-transition), box-shadow var(--page-transition);
  cursor: default;
}
.page-products .leagues__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--page-shadow-hover);
}
.page-products .leagues__name {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--page-text);
}
.page-products .leagues__banner {
  width: 100%;
  border-radius: var(--page-radius);
  overflow: hidden;
  box-shadow: var(--page-shadow);
}
.page-products .leagues__banner-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ===== 下载/入口 (窄章节) ===== */
.page-products .cta {
  padding: 4rem 0;
  text-align: center;
  background: linear-gradient(135deg, #1D3557 0%, #0F3460 100%);
  border-radius: var(--page-radius);
  margin-top: 2rem;
}
.page-products .cta__title {
  font-family: var(--font-heading-bold);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--page-text-light);
  margin: 0 0 0.75rem;
}
.page-products .cta__desc {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}
.page-products .cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}
.page-products .cta__note {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.5;
}
.page-products .button--primary {
  background: var(--page-red);
  color: #fff;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: 50px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: transform var(--page-transition), box-shadow var(--page-transition);
}
.page-products .button--primary:hover {
  transform: scale(1.04);
  box-shadow: 0 8px 20px rgba(230,57,70,0.35);
}
.page-products .button--outline {
  background: transparent;
  color: var(--page-text-light);
  border: 2px solid rgba(255,255,255,0.4);
  padding: 0.75rem 2rem;
  border-radius: 50px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background var(--page-transition), border-color var(--page-transition);
}
.page-products .button--outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
}
.page-products .button--large {
  padding: 0.9rem 2.5rem;
  font-size: 1.05rem;
}

/* ===== 滚动显现动画 ===== */
.page-products [data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.page-products [data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 767px) {
  .page-products .hero {
    padding: 2rem 0 3rem;
  }
  .page-products .hero__visual {
    flex-wrap: wrap;
    gap: 0.75rem;
  }
  .page-products .hero__stat {
    padding: 0.75rem 1rem;
    flex: 1;
    min-width: 80px;
  }
  .page-products .hero__stat-number {
    font-size: 1.6rem;
  }
  .page-products .features__grid {
    grid-template-columns: 1fr;
  }
  .page-products .flip-card {
    height: 440px;
  }
  .page-products .steps__flow::before {
    left: 20px;
  }
  .page-products .steps__item {
    padding-left: 3rem;
    padding-bottom: 1.8rem;
  }
  .page-products .steps__badge {
    width: 42px;
    height: 42px;
    font-size: 1.1rem;
  }
  .page-products .steps__visual {
    display: none;
  }
  .page-products .leagues__grid {
    grid-template-columns: 1fr;
  }
  .page-products .cta__actions {
    flex-direction: column;
    align-items: center;
  }
}

@media (min-width: 768px) {
  .page-products .hero__inner {
    grid-template-columns: 1fr auto;
  }
  .page-products .features__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-products .steps__inner {
    grid-template-columns: 1fr 220px;
  }
  .page-products .leagues__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-products .hero {
    padding: 4rem 0 5rem;
  }
  .page-products .hero__title {
    font-size: 3.8rem;
  }
  .page-products .leagues__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-products .flip-card__inner {
    transition: none;
  }
  .page-products .steps__fav {
    animation: none;
  }
}

.page-products {
  --page-border: var(--c-border);
}