/* ========== 服务项目页面专属样式 .page-products ========== */
.page-products {
  --color-red: #E30613;
  --color-blue: #004B87;
  --color-gold: #FFD700;
  --color-dark: #1A1A1A;
  --color-light: #F5F5F5;
  --color-white: #FFFFFF;
  --color-black: #111111;
  --glass: rgba(255,255,255,0.08);
  --glass-blur: 16px;
  --font-heading: 'Helvetica Neue','Arial',sans-serif;
  --font-body: 'Inter','Helvetica Neue',sans-serif;
  --font-mono: 'Courier New',monospace;
  --max-width: 1280px;
  --grid-gap: 24px;
  --nav-height: 68px; /* 仅用于间距参考 */
}

/* 容器通用 */
.page-products > section,
.page-products > .service-breadcrumb,
.page-products > .diagonal-cut,
.page-products > .service-brand-mark {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--grid-gap);
  padding-right: var(--grid-gap);
}

/* 面包屑 */
.page-products .service-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: calc(var(--nav-height) + 16px);
  padding-bottom: 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-style: italic;
  color: var(--color-blue);
}
.page-products .service-breadcrumb a {
  color: var(--color-blue);
  text-decoration: none;
}
.page-products .service-breadcrumb a:hover {
  color: var(--color-red);
  text-decoration: underline;
}
.page-products .service-breadcrumb .separator {
  color: var(--color-gold);
  font-weight: 900;
}
.page-products .service-breadcrumb .coordinate {
  font-family: var(--font-mono);
  color: var(--color-gold);
  font-size: 0.75rem;
  letter-spacing: 1px;
  opacity: 0.6;
}

/* 顶部流程步骤区 */
.page-products .step-flow {
  background: var(--color-dark);
  position: relative;
  overflow: hidden;
  padding: 48px 0;
  margin-top: 0;
}
.page-products .step-flow__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--grid-gap);
}
.page-products .step-flow__main-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(2rem, 6vw, 4rem);
  color: var(--color-white);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
  line-height: 1;
}
.page-products .step-flow__tagline {
  font-family: var(--font-body);
  color: var(--color-gold);
  font-size: 1.125rem;
  margin: 0 0 32px;
  font-weight: 700;
}
.page-products .step-flow__steps {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.page-products .step-item {
  flex: 1;
  min-width: 140px;
  background: var(--glass);
  backdrop-filter: blur(var(--glass-blur));
  border: 1px solid rgba(255,255,255,0.15);
  padding: 16px 20px;
  border-radius: 0;
  position: relative;
}
.page-products .step-number {
  font-family: var(--font-mono);
  color: var(--color-gold);
  font-size: 0.875rem;
  display: block;
  margin-bottom: 4px;
  letter-spacing: 2px;
}
.page-products .step-item__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-style: italic;
  color: var(--color-white);
  margin: 0 0 4px;
  font-size: 1.125rem;
}
.page-products .step-item__desc {
  font-family: var(--font-body);
  color: rgba(255,255,255,0.7);
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.4;
}
.page-products .step-connector {
  width: 32px;
  height: 2px;
  background: var(--color-gold);
  flex-shrink: 0;
}
.page-products .step-flow__image {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border: 1px solid var(--color-gold);
  filter: brightness(0.9) contrast(1.1);
}

/* 中国区当季赛事面板 */
.page-products .service-panel {
  padding: 64px 0;
  background: var(--color-light);
}
.page-products .service-panel__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--grid-gap);
  position: relative;
}
.page-products .service-panel__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  color: var(--color-black);
  margin: 0 0 16px;
  line-height: 1.1;
  position: relative;
  padding-top: 8px;
}
.page-products .service-panel__title::before {
  content: '';
  display: block;
  width: 64px;
  height: 4px;
  background: var(--color-red);
  margin-bottom: 12px;
}
.page-products .service-panel__desc {
  font-family: var(--font-body);
  color: var(--color-black);
  max-width: 660px;
  margin: 0 0 32px;
  line-height: 1.6;
}
.page-products .service-panel__media {
  margin: 32px 0;
}
.page-products .service-panel__img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--color-blue);
  box-shadow: 12px 12px 0 0 var(--color-blue);
}
.page-products .service-panel__features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--grid-gap);
}
.page-products .feature-item {
  background: var(--color-white);
  border-left: 4px solid var(--color-gold);
  padding: 16px;
  font-family: var(--font-body);
  box-shadow: 4px 4px 0 0 rgba(0,75,135,0.1);
}
.page-products .feature-item .data-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-blue);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.page-products .feature-item strong {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-black);
}

/* 斜角分割（复用全局类，仅微调） */
.page-products .diagonal-cut {
  height: 8px;
  background: linear-gradient(135deg, var(--color-red) 25%, var(--color-gold) 25%, var(--color-gold) 50%, var(--color-blue) 50%, var(--color-blue) 75%, var(--color-dark) 75%);
  margin: 0 auto;
  width: 100%;
}

/* 资料下载区域 */
.page-products .service-downloads {
  padding: 64px 0;
  background: var(--color-dark);
  color: var(--color-white);
}
.page-products .service-downloads__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--grid-gap);
  position: relative;
}
.page-products .service-downloads__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  color: var(--color-white);
  margin: 0 0 8px;
}
.page-products .service-downloads__title::before {
  content: '';
  display: block;
  width: 64px;
  height: 4px;
  background: var(--color-gold);
  margin-bottom: 12px;
}
.page-products .service-downloads__intro {
  font-family: var(--font-body);
  color: rgba(255,255,255,0.75);
  margin: 0 0 32px;
  max-width: 520px;
  line-height: 1.6;
}
/* 卡片网格 */
.page-products .card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--grid-gap);
  margin-bottom: 32px;
}
/* 翻转卡片 */
.page-products .flip-card {
  background: transparent;
  perspective: 1000px;
  cursor: pointer;
  height: 320px;
}
.page-products .flip-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s ease-in-out;
  transform-style: preserve-3d;
}
.page-products .flip-card:hover .flip-card__inner,
.page-products .flip-card:focus-within .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;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.2);
  background: var(--glass);
  backdrop-filter: blur(var(--glass-blur));
}
.page-products .flip-card__front {
  color: var(--color-white);
}
.page-products .flip-card__back {
  transform: rotateY(180deg);
  color: var(--color-white);
  background: var(--color-blue);
}
.page-products .flip-card__icon {
  width: 80px;
  height: auto;
  margin-bottom: 16px;
  object-fit: contain;
  filter: drop-shadow(0 0 4px rgba(255,215,0,0.4));
}
.page-products .flip-card__name {
  font-family: var(--font-heading);
  font-weight: 900;
  font-style: italic;
  font-size: 1.125rem;
  margin: 0 0 8px;
}
.page-products .flip-card__summary {
  font-family: var(--font-body);
  font-size: 0.875rem;
  margin: 0;
  opacity: 0.8;
}
.page-products .flip-card__detail {
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0 0 12px;
}
.page-products .flip-card__back .data-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-gold);
  letter-spacing: 1px;
}
/* 筛选按钮 */
.page-products .filter-toggle {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-style: italic;
  border: 2px solid var(--color-gold);
  color: var(--color-gold);
  background: transparent;
  padding: 12px 32px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.page-products .filter-toggle:hover,
.page-products .filter-toggle:focus {
  background: var(--color-gold);
  color: var(--color-dark);
}

/* 会员中心（暗色模式） */
.page-products .service-membership {
  padding: 64px 0;
  background: var(--color-black);
  color: var(--color-white);
}
.page-products .service-membership__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--grid-gap);
  position: relative;
}
.page-products .service-membership__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin: 0 0 16px;
  color: var(--color-white);
}
.page-products .service-membership__title::before {
  content: '';
  display: block;
  width: 64px;
  height: 4px;
  background: var(--color-red);
  margin-bottom: 12px;
}
.page-products .service-membership__desc {
  font-family: var(--font-body);
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin: 0 0 32px;
  line-height: 1.6;
}
.page-products .service-membership__preview {
  margin-bottom: 32px;
}
.page-products .service-membership__img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 2px solid var(--color-blue);
  border-radius: 0;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  filter: brightness(0.85) contrast(1.2);
}
.page-products .service-membership__leagues {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-products .league-item {
  font-family: var(--font-heading);
  font-weight: 900;
  font-style: italic;
  padding: 8px 24px;
  background: var(--glass);
  border: 1px solid var(--color-gold);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.875rem;
  transition: background 0.2s;
}
.page-products .league-item:hover {
  background: var(--color-gold);
  color: var(--color-black);
}

/* 底部品牌点缀 */
.page-products .service-brand-mark {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 16px;
  padding-top: 32px;
  padding-bottom: 64px;
  background: var(--color-light);
}
.page-products .brand-mark__icon {
  width: 60px;
  height: auto;
  opacity: 0.6;
  filter: sepia(1) hue-rotate(10deg) saturate(3);
}
.page-products .service-brand-mark .coordinate {
  font-family: var(--font-mono);
  color: var(--color-blue);
  font-size: 0.75rem;
  opacity: 0.5;
}

/* 移动端优先 / 窄屏适配 */
@media (max-width: 767px) {
  .page-products .step-flow__steps {
    flex-direction: column;
    gap: 8px;
  }
  .page-products .step-connector {
    width: 2px;
    height: 16px;
  }
  .page-products .step-item {
    width: 100%;
    min-width: auto;
  }
  .page-products .step-flow__main-title {
    font-size: 2rem;
  }
  .page-products .service-panel__features {
    grid-template-columns: 1fr;
  }
  .page-products .card-grid {
    grid-template-columns: 1fr;
  }
  .page-products .flip-card {
    height: 280px;
  }
  .page-products .service-membership__preview img {
    width: 100%;
  }
  .page-products .service-breadcrumb {
    flex-wrap: wrap;
  }
}

/* 桌面端细节优化 */
@media (min-width: 768px) {
  .page-products .step-flow__inner {
    display: flex;
    flex-direction: column;
  }
  .page-products .step-flow__steps {
    order: 2;
    margin-bottom: 0;
  }
  .page-products .step-flow__image {
    order: 3;
    margin-top: 32px;
  }
  .page-products .service-panel__media {
    display: flex;
    justify-content: flex-end;
  }
  .page-products .service-panel__img {
    max-width: 70%;
  }
}

/* 坐标装饰复用全局变量，无需额外定义 */
/* 所有新 class 已限定在 .page-products 内 */