/* ===== 平台服务页专属样式 ===== */
.page-products {
  --prod-gap: 2.5rem;
  --prod-section-spacing: 4.5rem;
  --device-width: 260px;
  --device-height: 530px;
  color: var(--color-text-primary);
  background: var(--color-primary-bg);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding: 1rem 0 0.5rem;
  font-size: var(--small-size);
}
.page-products .breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
}
.page-products .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--color-text-secondary);
}
.page-products .breadcrumb a {
  color: var(--color-accent-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus {
  color: var(--color-accent-orange);
  text-decoration: underline;
}
.page-products .breadcrumb li[aria-current="page"] {
  color: var(--color-text-secondary);
}

/* ---------- Hero ---------- */
.page-products .prod-hero {
  padding: 2rem 0 1.5rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--prod-section-spacing);
}
.page-products .prod-hero__title {
  font-family: var(--font-heading);
  font-size: var(--h1-size);
  margin: 0 0 0.75rem;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  position: relative;
}
.page-products .prod-hero__title::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: var(--color-accent-orange);
  margin-top: 0.5rem;
  border-radius: 2px;
}
.page-products .prod-hero__desc {
  font-size: var(--body-size);
  color: var(--color-text-secondary);
  max-width: 640px;
  line-height: 1.6;
}

/* ---------- 注册指南 ---------- */
.page-products .prod-guide {
  margin-bottom: var(--prod-section-spacing);
}
.page-products .prod-guide__header {
  margin-bottom: 2.5rem;
  position: relative;
}
.page-products .prod-guide__num {
  font-family: var(--font-digit);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent-orange);
  opacity: 0.3;
  display: block;
  line-height: 1;
  margin-bottom: -0.5rem;
}
.page-products .prod-guide__heading {
  font-family: var(--font-heading);
  font-size: var(--h2-size);
  margin: 0 0 0.5rem;
  color: var(--color-text-primary);
}
.page-products .prod-guide__sub {
  color: var(--color-text-secondary);
  font-size: var(--body-size);
  margin: 0;
}

/* ---------- 每一步 ---------- */
.page-products .prod-step {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid rgba(42, 63, 90, 0.4);
  animation: prodFadeUp 0.6s ease both;
}
.page-products .prod-step:nth-child(2) { animation-delay: 0.1s; }
.page-products .prod-step:nth-child(3) { animation-delay: 0.2s; }
.page-products .prod-step:nth-child(4) { animation-delay: 0.3s; }

@keyframes prodFadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-products .prod-step:last-of-type {
  border-bottom: none;
}

.page-products .prod-step__content {
  flex: 1 1 50%;
}
.page-products .prod-step__badge {
  display: inline-block;
  font-family: var(--font-digit);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent-orange);
  background: rgba(255, 107, 53, 0.12);
  padding: 0.2rem 0.8rem;
  border-radius: 4px;
  letter-spacing: 0.06em;
  margin-bottom: 0.6rem;
  border: 1px solid rgba(255, 107, 53, 0.25);
}
.page-products .prod-step__title {
  font-family: var(--font-heading);
  font-size: var(--h3-size);
  margin: 0 0 0.75rem;
  color: var(--color-text-primary);
}
.page-products .prod-step__text {
  font-size: var(--body-size);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}
.page-products .prod-step__text strong {
  color: var(--color-accent-blue);
  font-weight: 600;
}

.page-products .prod-step__device {
  flex: 0 0 var(--device-width);
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ---------- iPhone 模拟器 ---------- */
.page-products .iphone-mockup {
  position: relative;
  width: var(--device-width);
  height: var(--device-height);
  background: #111;
  border-radius: 36px;
  padding: 10px;
  border: 2px solid #2a2a2a;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.page-products .iphone-mockup:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.8), 0 0 0 1px var(--color-accent-blue);
}
.page-products .iphone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 26px;
  background: #000;
  border-radius: 0 0 16px 16px;
  z-index: 2;
}
.page-products .iphone-notch::after {
  content: "";
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 10px;
  height: 10px;
  background: #1a1a2e;
  border-radius: 50%;
  border: 1px solid #333;
}
.page-products .iphone-screen {
  width: 100%;
  height: 100%;
  background: var(--color-primary-bg);
  border-radius: 26px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.page-products .iphone-screen__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
.page-products .iphone-screen__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--color-text-secondary);
  font-family: var(--font-heading);
}
.page-products .iphone-screen__icon {
  font-size: 2.4rem;
  color: var(--color-success);
  background: rgba(52, 199, 89, 0.15);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-products .iphone-screen__label {
  font-size: 1.2rem;
  color: var(--color-text-primary);
}

/* ---------- 数据对比 ---------- */
.page-products .prod-compare {
  margin-bottom: var(--prod-section-spacing);
  padding: 2.5rem 0;
  background: var(--color-secondary-bg);
  border-radius: 16px;
  padding: 2rem 1.5rem;
}
.page-products .prod-compare__header {
  margin-bottom: 2rem;
  position: relative;
}
.page-products .prod-compare__num {
  font-family: var(--font-digit);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent-blue);
  opacity: 0.25;
  display: block;
  line-height: 1;
  margin-bottom: -0.5rem;
}
.page-products .prod-compare__heading {
  font-family: var(--font-heading);
  font-size: var(--h2-size);
  margin: 0 0 0.5rem;
  color: var(--color-text-primary);
}
.page-products .prod-compare__sub {
  color: var(--color-text-secondary);
  font-size: var(--body-size);
  margin: 0;
}

/* 双面板 */
.page-products .prod-compare__panels {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.page-products .prod-compare__panel {
  flex: 1;
  background: var(--color-card-bg);
  border-radius: 12px;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.page-products .prod-compare__panel:hover {
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.2);
}
.page-products .prod-compare__panel--old {
  border-left: 4px solid var(--color-accent-orange);
}
.page-products .prod-compare__panel--new {
  border-left: 4px solid var(--color-accent-blue);
}
.page-products .prod-compare__panel-title {
  font-family: var(--font-heading);
  font-size: var(--h3-size);
  margin: 0 0 1rem;
  color: var(--color-text-primary);
}
.page-products .prod-compare__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-products .prod-compare__stats li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(42, 63, 90, 0.4);
}
.page-products .prod-compare__stat-label {
  font-size: var(--body-size);
  color: var(--color-text-secondary);
}
.page-products .prod-compare__stat-value {
  font-family: var(--font-digit);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text-primary);
}
.page-products .prod-compare__panel--old .prod-compare__stat-value {
  color: var(--color-accent-orange);
}
.page-products .prod-compare__panel--new .prod-compare__stat-value {
  color: var(--color-accent-blue);
}

/* 图表 */
.page-products .prod-compare__chart {
  margin: 2rem 0 1rem;
  background: var(--color-card-bg);
  border-radius: 12px;
  padding: 1.5rem 0.5rem;
  border: 1px solid var(--color-border);
  overflow-x: auto;
}
.page-products .prod-compare__chart-caption {
  font-size: var(--small-size);
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: 1rem;
  font-style: italic;
}
.page-products .prod-compare__svg {
  display: block;
  width: 100%;
  min-width: 400px;
  height: auto;
  max-height: 400px;
}
.page-products .prod-compare__note {
  font-size: var(--small-size);
  color: var(--color-text-secondary);
  margin: 1rem 0 0;
  text-align: right;
  border-top: 1px solid var(--color-border);
  padding-top: 0.75rem;
  line-height: 1.6;
}

/* ---------- 版本更新 ---------- */
.page-products .prod-version {
  margin-bottom: var(--prod-section-spacing);
}
.page-products .prod-version__header {
  margin-bottom: 2rem;
  position: relative;
}
.page-products .prod-version__num {
  font-family: var(--font-digit);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-warning);
  opacity: 0.3;
  display: block;
  line-height: 1;
  margin-bottom: -0.5rem;
}
.page-products .prod-version__heading {
  font-family: var(--font-heading);
  font-size: var(--h2-size);
  margin: 0 0 0.5rem;
  color: var(--color-text-primary);
}
.page-products .prod-version__sub {
  color: var(--color-text-secondary);
  font-size: var(--body-size);
  margin: 0;
}

.page-products .prod-version__card {
  background: var(--color-card-bg);
  border-radius: 12px;
  padding: 1.8rem 1.5rem;
  border: 1px solid var(--color-border);
  margin-bottom: 2.5rem;
  transition: box-shadow var(--transition-base);
}
.page-products .prod-version__card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
.page-products .prod-version__tag {
  display: inline-block;
  font-family: var(--font-digit);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-accent-orange);
  background: rgba(255, 107, 53, 0.15);
  padding: 0.25rem 1.2rem;
  border-radius: 6px;
  margin-bottom: 1.2rem;
  border: 1px solid rgba(255, 107, 53, 0.3);
}
.page-products .prod-version__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.page-products .prod-version__item {
  font-size: var(--body-size);
  color: var(--color-text-secondary);
  line-height: 1.7;
  padding-left: 1.6rem;
  position: relative;
}
.page-products .prod-version__item::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--color-accent-blue);
  font-size: 1.1rem;
}

/* 联赛覆盖 */
.page-products .prod-version__leagues {
  margin-top: 2.5rem;
}
.page-products .prod-version__leagues-title {
  font-family: var(--font-heading);
  font-size: var(--h3-size);
  margin: 0 0 1.2rem;
  color: var(--color-text-primary);
  position: relative;
  padding-left: 1.2rem;
}
.page-products .prod-version__leagues-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2em;
  width: 6px;
  height: 1.2em;
  background: var(--color-accent-orange);
  border-radius: 3px;
}
.page-products .prod-version__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 1rem;
}
.page-products .prod-version__league {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  background: var(--color-card-bg);
  border-radius: 10px;
  padding: 0.75rem 0.4rem;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.page-products .prod-version__league:hover {
  border-color: var(--color-accent-blue);
  transform: translateY(-2px);
}
.page-products .prod-version__league-img {
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: contain;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
}
.page-products .prod-version__league-name {
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  text-align: center;
}
.page-products .prod-version__grid-note {
  font-size: var(--small-size);
  color: var(--color-text-secondary);
  margin: 1rem 0 0;
  text-align: center;
  opacity: 0.8;
}

/* ---------- 附加功能 ---------- */
.page-products .prod-feature {
  margin-bottom: var(--prod-section-spacing);
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-border);
}
.page-products .prod-feature__header {
  margin-bottom: 2rem;
  position: relative;
}
.page-products .prod-feature__num {
  font-family: var(--font-digit);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-accent-blue);
  opacity: 0.3;
  display: block;
  line-height: 1;
  margin-bottom: -0.2rem;
}
.page-products .prod-feature__heading {
  font-family: var(--font-heading);
  font-size: var(--h2-size);
  margin: 0 0 0.5rem;
  color: var(--color-text-primary);
}
.page-products .prod-feature__sub {
  color: var(--color-text-secondary);
  font-size: var(--body-size);
  margin: 0;
}
.page-products .prod-feature__layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}
.page-products .prod-feature__device {
  flex: 0 0 auto;
}
.page-products .prod-feature__info {
  flex: 1;
}
.page-products .prod-feature__text {
  font-size: var(--body-size);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0 0 1rem;
}
.page-products .prod-feature__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* ---------- 按钮 ---------- */
.page-products .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.5rem;
  font-family: var(--font-body);
  font-size: var(--body-size);
  font-weight: 600;
  border-radius: 6px;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  cursor: pointer;
  border: 2px solid transparent;
}
.page-products .btn-primary {
  background: var(--color-accent-orange);
  color: var(--color-text-primary);
  border-color: var(--color-accent-orange);
}
.page-products .btn-primary:hover,
.page-products .btn-primary:focus {
  background: #e85d2c;
  border-color: #e85d2c;
  transform: translateY(-2px);
}
.page-products .btn-outline {
  background: transparent;
  color: var(--color-accent-blue);
  border-color: var(--color-accent-blue);
}
.page-products .btn-outline:hover,
.page-products .btn-outline:focus {
  background: rgba(0, 212, 255, 0.1);
  transform: translateY(-2px);
}

/* ========== 桌面端 ========== */
@media (min-width: 48em) {
  .page-products {
    --device-width: 280px;
    --device-height: 560px;
    --prod-section-spacing: 6rem;
  }

  .page-products .prod-hero__title {
    font-size: clamp(2.8rem, 5vw, 3.6rem);
  }
  .page-products .prod-hero__desc {
    font-size: 1.1rem;
  }

  /* 步骤：左右并排 */
  .page-products .prod-step {
    flex-direction: row;
    align-items: center;
    gap: 2.5rem;
    padding: 2.5rem 0;
  }
  .page-products .prod-step:nth-child(even) {
    flex-direction: row-reverse;
  }
  .page-products .prod-step__content {
    flex: 1 1 55%;
  }
  .page-products .prod-step__device {
    flex: 0 0 var(--device-width);
  }

  /* 对比双面板并排 */
  .page-products .prod-compare__panels {
    flex-direction: row;
    gap: 2rem;
  }
  .page-products .prod-compare {
    padding: 3rem 2.5rem;
  }
  .page-products .prod-compare__svg {
    min-width: 600px;
  }

  /* 联赛网格 */
  .page-products .prod-version__grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 1.2rem;
  }

  /* 附加功能并排 */
  .page-products .prod-feature__layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 3rem;
  }
  .page-products .prod-feature__device {
    flex: 0 0 var(--device-width);
  }
  .page-products .prod-feature__info {
    flex: 1 1 55%;
  }
}

/* 大屏微调 */
@media (min-width: 75em) {
  .page-products .prod-compare__panels {
    gap: 3rem;
  }
  .page-products .prod-version__grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 1.5rem;
  }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-products .prod-step {
    animation: none;
  }
  .page-products .iphone-mockup,
  .page-products .btn,
  .page-products .prod-version__league {
    transition: none;
  }
}