/* ===== page-products 专属样式 ===== */
.page-products {
  --card-bg-start: #0a1a30;
  --card-bg-end: #0f2b50;
  --card-border-glow: rgba(0, 255, 132, 0.35);
  --card-shadow: 0 12px 32px -8px rgba(0, 0, 0, 0.6);
  --card-radius: 18px;
  --gold-line: var(--color-gold, #F5B041);
  --accent-glow: var(--color-fluorescent-green, #00FF84);

  position: relative;
  padding: 1.2rem 1rem 3rem;
  background: linear-gradient(175deg, var(--color-deep-space, #0B1A34) 0%, var(--color-deep-blue, #0F2B5C) 100%);
  color: var(--color-text-primary, #f0f4f8);
  font-family: var(--font-body, 'Source Sans Pro', sans-serif);
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 70vh;
}

/* ---- 面包屑 ---- */
.page-products .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--color-text-secondary, #b0c4de);
  margin-bottom: 1.8rem;
  padding: 0 0.2rem;
}

.page-products .breadcrumb a {
  color: var(--color-accent, #00FF84);
  text-decoration: none;
  transition: opacity 0.2s;
}

.page-products .breadcrumb a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

.page-products .breadcrumb .sep {
  color: var(--color-medium-steel, #2D3748);
  font-weight: 300;
}

/* ---- 标题区 ---- */
.page-products .solutions-intro {
  margin-bottom: 2.4rem;
  padding: 0 0.2rem;
}

.page-products .solutions-intro h1 {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: clamp(2.2rem, 8vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 0.6rem;
  background: linear-gradient(135deg, var(--color-white, #FFFFFF) 30%, var(--color-accent, #00FF84) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-products .intro-sub {
  font-size: clamp(1rem, 3vw, 1.25rem);
  font-weight: 400;
  color: var(--color-text-secondary, #b0c4de);
  max-width: 620px;
  margin: 0 0 1.2rem;
  line-height: 1.6;
}

.page-products .accent-line {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent, #00FF84), var(--color-gold, #F5B041));
  border-radius: 4px;
  margin-top: 0.2rem;
}

/* ---- 卡片网格 ---- */
.page-products .solutions-grid {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  margin-bottom: 2.8rem;
}

/* ---- 通用卡片样式 ---- */
.page-products .service-card {
  position: relative;
  background: linear-gradient(145deg, var(--card-bg-start), var(--card-bg-end));
  border: 1px solid var(--card-border-glow);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.page-products .service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -12px rgba(0, 255, 132, 0.2);
}

/* 卡片顶部装饰线 */
.page-products .service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent, #00FF84), var(--color-gold, #F5B041), var(--color-accent, #00FF84));
  opacity: 0.7;
}

/* ---- 卡片图片区 ---- */
.page-products .card-visual {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--color-dark-charcoal, #1A1A2E);
  line-height: 0;
}

.page-products .card-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.page-products .service-card:hover .card-img {
  transform: scale(1.03);
}

.page-products .card-img-square {
  max-width: 200px;
  margin: 0 auto;
}

.page-products .card-tag {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: rgba(0, 255, 132, 0.18);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: var(--color-accent, #00FF84);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border-radius: 24px;
  border: 1px solid rgba(0, 255, 132, 0.3);
  font-family: var(--font-heading, 'Inter', sans-serif);
}

/* ---- 卡片内容体 ---- */
.page-products .card-body {
  padding: 1.2rem 1.2rem 1.6rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.page-products .card-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: clamp(1.3rem, 4vw, 1.8rem);
  font-weight: 700;
  margin: 0 0 0.3rem;
  letter-spacing: -0.01em;
  color: var(--color-white, #FFFFFF);
  position: relative;
  padding-bottom: 0.4rem;
}

.page-products .card-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--gold-line);
  margin-top: 0.35rem;
  border-radius: 2px;
}

.page-products .card-summary {
  font-size: 0.95rem;
  color: var(--color-accent, #00FF84);
  font-weight: 600;
  margin: 0 0 0.6rem;
  font-family: var(--font-heading, 'Inter', sans-serif);
  letter-spacing: 0.02em;
}

.page-products .card-details {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-text-secondary, #b0c4de);
  margin-bottom: 0.8rem;
  flex: 1;
}

.page-products .card-details p {
  margin: 0;
}

/* ---- 展开交互（checkbox hack） ---- */
.page-products .expand-toggle {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.page-products .expand-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-accent, #00FF84);
  padding: 0.4rem 0 0;
  transition: color 0.2s;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.page-products .expand-label::after {
  content: '▾';
  display: inline-block;
  font-size: 0.8rem;
  transition: transform 0.3s ease;
}

.page-products .expand-toggle:checked + .expand-label::after {
  transform: rotate(180deg);
}

.page-products .expand-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease, padding 0.3s ease, opacity 0.3s ease;
  opacity: 0;
  padding-top: 0;
}

.page-products .expand-toggle:checked ~ .expand-content {
  max-height: 320px;
  opacity: 1;
  padding-top: 0.8rem;
}

.page-products .expand-content p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-text-secondary, #b0c4de);
  margin: 0 0 0.6rem;
}

.page-products .card-foot-link {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-gold, #F5B041);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
  margin-top: 0.4rem;
}

.page-products .card-foot-link:hover {
  border-bottom-color: var(--color-gold, #F5B041);
  color: var(--color-accent, #00FF84);
}

/* ---- 卡片按钮（了解更多） ---- */
.page-products .card-btn {
  background: transparent;
  border: 1px solid rgba(0, 255, 132, 0.4);
  border-radius: 30px;
  padding: 0.5rem 1.4rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent, #00FF84);
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s, box-shadow 0.25s;
  align-self: flex-start;
  letter-spacing: 0.04em;
  font-family: var(--font-heading, 'Inter', sans-serif);
}

.page-products .card-btn:hover {
  background: rgba(0, 255, 132, 0.12);
  border-color: var(--color-accent, #00FF84);
  box-shadow: 0 0 18px rgba(0, 255, 132, 0.2);
}

/* ---- 装饰区 ---- */
.page-products .deco-bottom {
  display: flex;
  justify-content: center;
  padding: 2rem 0 0.5rem;
  border-top: 1px solid rgba(245, 176, 65, 0.2);
  margin-top: 1.5rem;
}

.page-products .deco-athlete {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: contain;
  opacity: 0.6;
  transition: opacity 0.4s;
}

.page-products .deco-athlete:hover {
  opacity: 0.85;
}

.page-products .deco-side {
  display: none;
}

/* ---- 相关链接区 ---- */
.page-products .related-links {
  margin-top: 3rem;
  padding-top: 1.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.page-products .related-heading {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-secondary, #b0c4de);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}

.page-products .related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.page-products .related-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.8rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  text-decoration: none;
  color: var(--color-text-primary, #f0f4f8);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.25s, border-color 0.25s, transform 0.2s;
}

.page-products .related-item:hover {
  background: rgba(0, 255, 132, 0.06);
  border-color: rgba(0, 255, 132, 0.2);
  transform: translateX(4px);
}

.page-products .related-icon {
  color: var(--color-accent, #00FF84);
  font-weight: 700;
  font-size: 1rem;
}

/* ========== 桌面端栅格（≥768px） ========== */
@media (min-width: 768px) {
  .page-products {
    padding: 1.8rem 2.5rem 4rem;
  }

  .page-products .breadcrumb {
    font-size: 0.85rem;
    margin-bottom: 2.2rem;
  }

  .page-products .solutions-intro h1 {
    font-size: clamp(3rem, 6vw, 4.2rem);
  }

  .page-products .solutions-grid {
    display: grid;
    grid-template-columns: 2.2fr 1fr;
    grid-template-rows: auto auto;
    gap: 1.8rem;
    align-items: start;
  }

  .page-products .service-card {
    flex-direction: column;
  }

  /* 登录卡片：左列，跨两行 */
  .page-products .card-login {
    grid-column: 1;
    grid-row: 1 / 3;
  }

  .page-products .card-login .card-visual {
    max-height: 280px;
  }

  /* 统计卡片：右列上 */
  .page-products .card-stats {
    grid-column: 2;
    grid-row: 1;
  }

  /* 规则卡片：右列下 */
  .page-products .card-rules {
    grid-column: 2;
    grid-row: 2;
  }

  .page-products .card-rules .card-visual {
    display: flex;
    justify-content: center;
    padding: 0.8rem 0;
  }

  .page-products .card-img-square {
    max-width: 160px;
  }

  /* 侧边装饰：桌面显示 */
  .page-products .deco-side {
    display: block;
    position: absolute;
    right: 0.5rem;
    top: 15%;
    width: 100px;
    opacity: 0.3;
    pointer-events: none;
    z-index: 0;
  }

  .page-products .deco-stream {
    width: 100%;
    height: auto;
    object-fit: contain;
  }

  .page-products .related-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .deco-bottom {
    padding: 2.5rem 0 1rem;
    margin-top: 2rem;
  }
}

/* ========== 大桌面端（≥1024px） ========== */
@media (min-width: 1024px) {
  .page-products {
    padding: 2.2rem 3.5rem 5rem;
    max-width: var(--content-max-width, 1200px);
    margin: 0 auto;
  }

  .page-products .solutions-grid {
    gap: 2.2rem;
  }

  .page-products .card-body {
    padding: 1.5rem 1.8rem 2rem;
  }

  .page-products .card-title {
    font-size: 1.6rem;
  }

  .page-products .deco-side {
    right: -1.5rem;
    opacity: 0.25;
  }

  .page-products .related-grid {
    gap: 1.2rem;
  }
}

/* ========== 极窄屏保障（≤400px） ========== */
@media (max-width: 400px) {
  .page-products {
    padding: 0.8rem 0.6rem 2rem;
  }

  .page-products .card-body {
    padding: 0.8rem 0.8rem 1.2rem;
  }

  .page-products .card-img-square {
    max-width: 140px;
  }

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

  .page-products .card-btn {
    font-size: 0.75rem;
    padding: 0.4rem 1rem;
  }
}