/* ===== 页面专属：APP下载 (page-products) ===== */
.page-products {
  --products-red: #DC2626;
  --products-gray: #2D2D2D;
  --products-gray-light: #4A4A4A;
  --products-gold: #C9A96E;
  --products-blue: #00A2FF;
  --products-white: #FFFFFF;
  --products-black: #0A0A0A;
  --products-font-title: Impact, 'Arial Black', sans-serif;
  --products-font-body: Helvetica, Arial, sans-serif;
  --products-transition: 0.3s ease;
  display: block;
  background: var(--products-gray);
  color: var(--products-white);
  font-family: var(--products-font-body);
}

/* breadcrumb */
.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 1.25rem 0 0.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--products-gray-light);
}
.page-products .breadcrumb a {
  color: var(--products-gold);
  text-decoration: none;
  transition: color var(--products-transition);
}
.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--products-white);
  text-decoration: underline;
}
.page-products .breadcrumb .sep {
  color: var(--products-gray-light);
  font-weight: 300;
}
.page-products .breadcrumb .current {
  color: var(--products-white);
  font-weight: 600;
}

/* section helpers */
.page-products .container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1rem;
}
.page-products .section-label {
  font-family: var(--products-font-title);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--products-gold);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}
.page-products .section-heading {
  font-family: var(--products-font-title);
  font-size: 2.4rem;
  line-height: 1.1;
  color: var(--products-white);
  margin: 0 0 2rem;
  position: relative;
  display: inline-block;
}
.page-products .section-heading::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--products-red);
  border-radius: 2px;
}

/* highlight */
.page-products .highlight-red {
  color: var(--products-red);
}

/* ===== 首屏 hero ===== */
.page-products .products-hero {
  padding: 1.5rem 0 3rem;
  position: relative;
  overflow: hidden;
}
.page-products .products-hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(220,38,38,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.page-products .products-hero-inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  align-items: center;
}
.page-products .products-hero-text {
  flex: 1;
  z-index: 1;
}
.page-products .products-hero-title {
  font-family: var(--products-font-title);
  font-size: 2.8rem;
  line-height: 1.05;
  color: var(--products-white);
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}
.page-products .products-hero-desc {
  font-size: 1.05rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.8);
  max-width: 540px;
  margin: 0 0 1.75rem;
}
.page-products .products-hero-features {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.page-products .products-hero-feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.9);
  font-weight: 500;
}
.page-products .products-hero-feature-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(201,169,110,0.12);
  border: 1px solid rgba(201,169,110,0.25);
}
.page-products .products-hero-feature-icon svg {
  display: block;
}
.page-products .products-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* buttons */
.page-products .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2rem;
  font-family: var(--products-font-body);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--products-transition);
  letter-spacing: 0.03em;
}
.page-products .btn-primary {
  background: var(--products-red);
  color: var(--products-white);
  border-color: var(--products-red);
}
.page-products .btn-primary:hover,
.page-products .btn-primary:focus-visible {
  background: #b71c1c;
  border-color: #b71c1c;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(220,38,38,0.35);
}
.page-products .btn-outline {
  background: transparent;
  color: var(--products-gold);
  border-color: var(--products-gold);
}
.page-products .btn-outline:hover,
.page-products .btn-outline:focus-visible {
  background: rgba(201,169,110,0.1);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201,169,110,0.2);
}

/* phone mockup */
.page-products .products-hero-mockup {
  flex-shrink: 0;
  z-index: 1;
  width: 260px;
  max-width: 100%;
}
.page-products .phone-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 16;
  background: var(--products-black);
  border-radius: 36px;
  border: 3px solid var(--products-gray-light);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), inset 0 0 0 1px rgba(255,255,255,0.06);
  overflow: hidden;
  padding: 12px 8px;
}
.page-products .phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 28px;
  background: var(--products-black);
  border-radius: 0 0 18px 18px;
  z-index: 2;
}
.page-products .phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(145deg, #1a1a1a 0%, #0f0f0f 100%);
  border-radius: 24px;
  display: flex;
  flex-direction: column;
  padding: 10px;
  gap: 6px;
  position: relative;
  z-index: 1;
}
.page-products .phone-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2px 4px 8px;
  font-size: 0.6rem;
  color: rgba(255,255,255,0.6);
  font-weight: 600;
}
.page-products .phone-time {
  letter-spacing: 0.05em;
}
.page-products .phone-battery {
  width: 18px;
  height: 10px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 2px;
  position: relative;
}
.page-products .phone-battery::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 65%;
  height: 6px;
  background: var(--products-blue);
  border-radius: 1px;
}
.page-products .phone-app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 4px 8px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.page-products .phone-app-brand {
  font-family: var(--products-font-title);
  font-size: 0.8rem;
  color: var(--products-red);
  letter-spacing: 0.04em;
}
.page-products .phone-app-live {
  font-size: 0.5rem;
  background: var(--products-red);
  color: #fff;
  padding: 1px 6px;
  border-radius: 3px;
  font-weight: 700;
  letter-spacing: 0.05em;
  animation: pulse-live 1.5s ease-in-out infinite;
}
@keyframes pulse-live {
  0%,100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.page-products .phone-app-card {
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-left: 3px solid var(--products-red);
}
.page-products .phone-app-card-alt {
  border-left-color: var(--products-blue);
}
.page-products .phone-card-race {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--products-white);
}
.page-products .phone-card-info {
  font-size: 0.55rem;
  color: rgba(255,255,255,0.55);
}
.page-products .phone-card-remind {
  font-size: 0.5rem;
  color: var(--products-gold);
  font-weight: 600;
}
.page-products .phone-card-badge {
  align-self: flex-start;
  font-size: 0.45rem;
  background: rgba(0,162,255,0.2);
  color: var(--products-blue);
  padding: 1px 5px;
  border-radius: 3px;
  font-weight: 600;
}
.page-products .phone-tab-bar {
  display: flex;
  justify-content: space-around;
  padding: 8px 4px 2px;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: auto;
  font-size: 0.55rem;
  color: rgba(255,255,255,0.4);
  font-weight: 500;
}
.page-products .phone-tab-active {
  color: var(--products-red);
  font-weight: 700;
}

/* ===== 核心功能 ===== */
.page-products .products-features {
  padding: 3rem 0;
  position: relative;
}
.page-products .products-features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--products-gray-light), transparent);
}
.page-products .products-features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.page-products .products-features-card {
  position: relative;
  perspective: 800px;
  min-height: 260px;
  cursor: default;
}
.page-products .products-features-card-front,
.page-products .products-features-card-back {
  border-radius: 12px;
  padding: 1.75rem 1.5rem;
  transition: all 0.45s ease;
  backface-visibility: hidden;
  background: var(--products-gray-light);
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.page-products .products-features-card-front {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-products .products-features-card-back {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: rotateY(180deg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.85);
  padding: 1.75rem 1.5rem;
  border-color: var(--products-blue);
}
.page-products .products-features-card:hover .products-features-card-front,
.page-products .products-features-card:focus-within .products-features-card-front {
  transform: rotateY(-180deg);
}
.page-products .products-features-card:hover .products-features-card-back,
.page-products .products-features-card:focus-within .products-features-card-back {
  transform: rotateY(0deg);
}
.page-products .products-features-card-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(201,169,110,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(201,169,110,0.15);
}
.page-products .products-features-card-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-products .products-features-card-title {
  font-family: var(--products-font-title);
  font-size: 1.2rem;
  color: var(--products-white);
  margin: 0;
  letter-spacing: 0.01em;
}
.page-products .products-features-card-brief {
  font-size: 0.88rem;
  line-height: 1.55;
  color: rgba(255,255,255,0.7);
  margin: 0;
}

/* ===== 下载方式 ===== */
.page-products .products-download {
  padding: 3rem 0;
}
.page-products .products-download-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
  text-align: center;
}
.page-products .products-download-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.page-products .products-download-qr-img {
  width: 180px;
  height: 180px;
  object-fit: contain;
  border-radius: 12px;
  background: var(--products-white);
  padding: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.page-products .products-download-qr-label {
  font-size: 0.85rem;
  color: var(--products-gold);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.page-products .products-download-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  max-width: 480px;
}
.page-products .products-download-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.75);
  margin: 0;
}
.page-products .products-download-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.page-products .products-download-note {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.5;
  margin: 0;
}
.page-products .products-download-note a {
  color: var(--products-blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ===== 会员权益详情 (可展开) ===== */
.page-products .products-membership {
  padding: 3rem 0;
  position: relative;
}
.page-products .products-membership::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--products-gray-light), transparent);
}
.page-products .products-membership-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-products .products-membership-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color var(--products-transition);
}
.page-products .products-membership-item[data-open="true"] {
  border-color: rgba(201,169,110,0.3);
}
.page-products .products-membership-item-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1.2rem 1.25rem;
  background: none;
  border: none;
  color: var(--products-white);
  font-family: var(--products-font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: background var(--products-transition);
}
.page-products .products-membership-item-header:hover,
.page-products .products-membership-item-header:focus-visible {
  background: rgba(255,255,255,0.04);
}
.page-products .products-membership-item-num {
  font-family: var(--products-font-title);
  font-size: 0.9rem;
  color: var(--products-red);
  width: 28px;
  flex-shrink: 0;
}
.page-products .products-membership-item-title {
  flex: 1;
  color: var(--products-white);
}
.page-products .products-membership-item-arrow {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  transition: transform 0.3s ease;
}
.page-products .products-membership-item[data-open="true"] .products-membership-item-arrow {
  transform: rotate(180deg);
}
.page-products .products-membership-item-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 1.25rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.7);
}
.page-products .products-membership-item[data-open="true"] .products-membership-item-body {
  max-height: 320px;
  padding: 0 1.25rem 1.25rem;
}
.page-products .products-membership-extras {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-products .products-membership-extras li {
  padding-left: 1rem;
  position: relative;
  color: rgba(255,255,255,0.8);
}
.page-products .products-membership-extras li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--products-gold);
  font-weight: 700;
}

/* ===== FAQ链接区 ===== */
.page-products .products-faq-link {
  padding: 2rem 0 4rem;
}
.page-products .products-faq-link-card {
  background: linear-gradient(145deg, rgba(201,169,110,0.06) 0%, rgba(220,38,38,0.04) 100%);
  border: 1px solid rgba(201,169,110,0.15);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.page-products .products-faq-link-title {
  font-family: var(--products-font-title);
  font-size: 1.6rem;
  color: var(--products-white);
  margin: 0;
}
.page-products .products-faq-link-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.6);
  max-width: 420px;
  margin: 0;
  line-height: 1.6;
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-products .products-hero-title {
    font-size: 3.4rem;
  }
  .page-products .products-features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-products .products-download-qr-img {
    width: 200px;
    height: 200px;
  }
}

@media (min-width: 900px) {
  .page-products .products-hero-inner {
    flex-direction: row;
    gap: 3rem;
  }
  .page-products .products-hero-text {
    flex: 1.2;
  }
  .page-products .products-hero-mockup {
    flex: 0.8;
    width: 300px;
  }
  .page-products .products-hero-title {
    font-size: 4rem;
  }
  .page-products .products-features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-products .products-download-inner {
    flex-direction: row;
    justify-content: center;
    text-align: left;
  }
  .page-products .products-download-info {
    align-items: flex-start;
  }
  .page-products .products-download-btns {
    justify-content: flex-start;
  }
  .page-products .section-heading {
    font-size: 3rem;
  }
  .page-products .products-faq-link-card {
    padding: 3rem 4rem;
  }
}

@media (min-width: 1240px) {
  .page-products .products-hero-title {
    font-size: 4.8rem;
  }
  .page-products .products-hero-mockup {
    width: 340px;
  }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  .page-products .phone-app-live {
    animation: none;
  }
  .page-products .products-features-card-front,
  .page-products .products-features-card-back {
    transition: none;
  }
  .page-products .products-features-card:hover .products-features-card-front,
  .page-products .products-features-card:focus-within .products-features-card-front {
    transform: none;
  }
  .page-products .products-features-card:hover .products-features-card-back,
  .page-products .products-features-card:focus-within .products-features-card-back {
    transform: none;
  }
  .page-products .products-membership-item-body {
    transition: none;
  }
  .page-products .products-membership-item-arrow {
    transition: none;
  }
}