/* ===== 页面专属：产品/应用中心 ===== */
.page-products {
  --page-bg-start: #FF6B35;
  --page-bg-end: #FF8C42;
  --card-bg: #FFFFFF;
  --card-radius: 20px;
  --card-shadow: 0 8px 40px rgba(0,0,0,0.10);
  --step-color: #1E90FF;
  color: #1A1A1A;
  font-family: var(--font-body);
  background: linear-gradient(180deg, var(--page-bg-start) 0%, var(--page-bg-end) 100%);
  min-height: 100vh;
  padding: 0 16px 40px;
}

/* ===== 应用下载英雄区 ===== */
.app-download-hero {
  padding: 32px 0 24px;
}

.download-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  max-width: 800px;
  margin: 0 auto;
}

.download-visual {
  background: #E8F4FD;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.app-screenshot {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 12px;
}

.download-info {
  padding: 24px;
  text-align: center;
}

.download-info h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 2rem;
  color: #1A1A1A;
  margin: 0 0 8px;
}

.download-subtitle {
  font-size: 1rem;
  color: #666;
  margin: 0 0 20px;
}

.qrcode-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.qrcode-placeholder svg {
  display: block;
}

.qrcode-label {
  font-size: 0.85rem;
  color: #1E90FF;
  font-weight: 600;
}

.download-btn {
  background: linear-gradient(135deg, #FF6B35, #FF8C42);
  color: #FFFFFF;
  border: none;
  border-radius: 9999px;
  padding: 14px 48px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: inline-block;
}

.download-btn:hover,
.download-btn:focus-visible {
  transform: scale(1.03);
  box-shadow: 0 4px 20px rgba(255,107,53,0.4);
}

.download-btn:active {
  transform: scale(0.97);
}

.download-note {
  font-size: 0.85rem;
  color: #999;
  margin-top: 12px;
}

/* ===== 功能网格 ===== */
.features-grid {
  padding: 24px 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

.two-column-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.feature-card {
  background: var(--card-bg);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 48px rgba(0,0,0,0.15);
}

.card-visual img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.card-content {
  padding: 20px;
}

.card-content h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  margin: 0 0 12px;
  color: #0A3D62;
}

.card-content p {
  margin: 0 0 10px;
  line-height: 1.6;
  color: #333;
}

.subscribe-btn {
  background: transparent;
  border: 2px solid #1E90FF;
  color: #1E90FF;
  border-radius: 9999px;
  padding: 10px 28px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  margin-top: 10px;
}

.subscribe-btn:hover,
.subscribe-btn:focus-visible {
  background: #1E90FF;
  color: #FFFFFF;
}

.subscribe-btn:active {
  background: #0A3D62;
  border-color: #0A3D62;
}

/* ===== 投屏步骤 ===== */
.screencast-steps {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
  counter-reset: step-counter;
}

.screencast-steps li {
  position: relative;
  padding-left: 40px;
  margin-bottom: 12px;
  line-height: 1.5;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.screencast-steps li::before {
  content: counter(step-counter);
  counter-increment: step-counter;
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  background: var(--step-color);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  transition: box-shadow var(--transition-fast);
}

.screencast-steps li:hover::before {
  box-shadow: 0 0 0 4px rgba(30,144,255,0.3);
}

/* ===== 费用更新公告 ===== */
.update-announce {
  padding: 32px 0;
  max-width: 800px;
  margin: 0 auto;
}

.announce-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
  border-radius: 20px;
  padding: 20px 24px;
}

.announce-icon img {
  width: 60px;
  height: auto;
  display: block;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  padding: 6px;
}

.announce-text h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: #FFFFFF;
  margin: 0 0 6px;
}

.announce-text p {
  color: #FFFFFF;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
}

.announce-text a {
  color: #FFFFFF;
  text-decoration: underline;
  font-weight: 600;
}

.announce-text a:hover {
  color: #E8F4FD;
}

/* ===== 运动装饰横幅 ===== */
.sports-banner {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px 0;
}

.sports-banner img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
  opacity: 0.8;
}

/* ===== 下载弹窗 ===== */
.download-popup {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.download-popup[aria-hidden="false"] {
  display: flex;
}

.popup-content {
  background: #FFFFFF;
  border-radius: 24px;
  padding: 40px 32px 28px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.popup-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
  color: #999;
}

.popup-close:hover {
  color: #1A1A1A;
}

.popup-content p {
  margin: 0 0 12px;
  line-height: 1.6;
}

.popup-content a {
  color: #1E90FF;
  font-weight: 600;
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-products {
    padding: 0 32px 60px;
  }

  .download-card {
    flex-direction: row;
    align-items: center;
    padding: 0;
  }

  .download-visual {
    flex: 0 0 260px;
    padding: 32px 20px;
  }

  .download-info {
    flex: 1;
    padding: 40px 32px;
    text-align: left;
  }

  .qrcode-placeholder {
    flex-direction: row;
    gap: 16px;
    margin-bottom: 24px;
  }

  .two-column-layout {
    grid-template-columns: 1fr 1fr;
    max-width: 900px;
  }

  .feature-card {
    display: flex;
    flex-direction: column;
  }

  .card-visual img {
    height: 240px;
  }

  .card-content {
    flex: 1;
  }

  .announce-inner {
    padding: 28px 32px;
  }

  .download-popup[aria-hidden="false"] {
    display: flex;
  }
}
@media (min-width: 1024px) {
  .page-products {
    padding: 0 64px 80px;
  }

  .download-card {
    max-width: 900px;
  }

  .download-visual {
    flex-basis: 300px;
  }
}
</style>