/* ===== 应用中心页面专用样式 ===== */
.page-products {
  --products-blue: #0077B6;
  --products-deep: #023E8A;
  --products-coral: #FF6B6B;
  --products-lime: #39FF14;
  --products-aqua: #E0F7FA;
  --products-ink: #2B2024;
  --products-paper: #F8F9FA;
  --products-white: #FFFFFF;
  --products-mono: var(--font-mono);
  --products-title: var(--font-title);
  --products-body: var(--font-body);
  --products-radius: 16px;
  --products-line: rgba(2, 62, 138, 0.14);
  --products-deep-line: rgba(255, 255, 255, 0.18);
}

/* ===== 面包屑 ===== */
.page-products__breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 28px 0 0;
  margin-bottom: 72px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
}
.page-products__breadcrumbs a {
  color: rgba(255, 255, 255, 0.86);
  text-decoration-color: rgba(255, 255, 255, 0.5);
  transition: opacity 0.2s;
}
.page-products__breadcrumbs a:hover {
  opacity: 0.75;
}
.page-products__crumb-sep {
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Hero 首屏 ===== */
.page-products__hero {
  position: relative;
  padding: 40px 0 72px;
  background: linear-gradient(142deg, #022B62 0%, var(--products-deep) 32%, var(--products-blue) 72%, #0093C8 100%);
  color: var(--products-white);
  overflow: hidden;
}
.page-products__hero::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -160px;
  top: -120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 107, 0.28) 0%, rgba(255, 107, 107, 0) 72%);
  pointer-events: none;
}
.page-products__hero::after {
  content: "";
  position: absolute;
  left: -20px;
  right: -20px;
  bottom: -58px;
  height: 120px;
  background: var(--products-paper);
  transform: skewY(-4deg);
  z-index: 1;
  pointer-events: none;
}
.page-products__hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 40px;
}
.page-products__hero-subtitle {
  color: var(--products-lime);
  font-weight: 700;
  margin-bottom: 18px;
}
.page-products__hero h1 {
  font-family: var(--products-title);
  font-size: clamp(2.1rem, 7vw, 4rem);
  line-height: 1.12;
  margin-bottom: 22px;
  letter-spacing: 0.02em;
}
.page-products__hero-lead {
  max-width: 620px;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.86);
  margin-bottom: 30px;
}
.page-products__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-products__hero .btn--ghost {
  border-color: rgba(255, 255, 255, 0.65);
  color: var(--products-white);
}
.page-products__hero-panel {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 18px 48px rgba(2, 50, 110, 0.24);
}
.page-products__hero-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.82);
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  margin-bottom: 20px;
}
.page-products__live-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--products-lime);
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.22);
  animation: productsPulse 1.8s ease-in-out infinite;
}
@keyframes productsPulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(57, 255, 20, 0.28); }
  50% { box-shadow: 0 0 0 7px rgba(57, 255, 20, 0.08); }
}
.page-products__stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 20px;
}
.page-products__hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-products__hero-num {
  font-family: var(--products-mono);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--products-white);
  line-height: 1;
}
.page-products__hero-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}
.page-products__hero-panel-note {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 12px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
}

/* ===== 平台下载区 ===== */
.page-products__download {
  padding-top: 72px;
  padding-bottom: 80px;
}
.page-products__download-head {
  max-width: 720px;
}
.page-products__tab-list {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
}
.page-products__tab-btn {
  border: 1px solid rgba(2, 62, 138, 0.28);
  background: var(--products-white);
  color: var(--products-deep);
  padding: 10px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
}
.page-products__tab-btn:hover {
  transform: translateY(-2px);
}
.page-products__tab-btn:focus-visible {
  outline: 3px solid var(--products-blue);
  outline-offset: 2px;
}
.page-products__tab-btn[aria-selected="true"] {
  background: var(--products-blue);
  border-color: var(--products-blue);
  color: var(--products-white);
}

.page-products__panel {
  margin-bottom: 32px;
}
.page-products__platform-view {
  display: grid;
  gap: 20px;
  margin-bottom: 28px;
}
.page-products__platform-shot {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
}
.page-products__platform-shot img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: inherit;
}
.page-products__platform-desc {
  background: var(--products-deep);
  color: var(--products-white);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  position: relative;
  overflow: hidden;
}
.page-products__platform-desc::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 120px;
  height: 120px;
  background: rgba(255, 107, 107, 0.22);
  border-radius: 50%;
}
.page-products__platform-desc h3 {
  font-family: var(--products-title);
  font-size: 1.35rem;
  margin-bottom: 8px;
}
.page-products__platform-desc p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
  margin: 0;
  max-width: 640px;
}
.page-products__platform-view--mobile {
  grid-template-columns: auto 1fr;
  align-items: center;
}
.page-products__phone-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 220px;
  box-shadow: var(--shadow-2);
  background: var(--products-white);
  padding: 10px;
}
.page-products__phone-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: calc(var(--radius-lg) - 8px);
}

.page-products__os-grid {
  display: grid;
  gap: 16px;
}
.page-products__os-card {
  padding: 22px;
  border: 1px solid rgba(2, 62, 138, 0.12);
  box-shadow: var(--shadow-1);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.page-products__os-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
}
.page-products__os-head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-products__os-head h3 {
  font-family: var(--products-title);
  font-size: 1.2rem;
  margin: 0;
  color: var(--products-ink);
}
.page-products__os-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 32px;
  padding: 0 10px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--products-white);
  background: var(--products-deep);
  letter-spacing: 0.04em;
}
.page-products__os-badge--win {
  background: var(--products-blue);
}
.page-products__os-badge--ios {
  background: #1B1B1F;
}
.page-products__os-badge--and {
  background: #3DDC84;
}
.page-products__os-text {
  font-size: 14px;
  line-height: 1.7;
  color: #45505B;
  margin: 0;
}
.page-products__download-btn {
  margin-top: auto;
  align-self: flex-start;
}
.page-products__os-meta {
  font-size: 12px;
  color: #74808B;
  margin: 0;
}

/* ===== 二维码条 ===== */
.page-products__qr-strip {
  display: grid;
  gap: 24px;
  padding: 24px;
  background: var(--products-aqua);
  border-radius: var(--radius-lg);
}
.page-products__qr-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}
.page-products__qr-card img {
  width: 144px;
  height: 144px;
  border-radius: var(--radius-md);
  background: var(--products-white);
  padding: 10px;
  box-shadow: var(--shadow-1);
}
.page-products__qr-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--products-deep);
}
.page-products__qr-content h3 {
  font-family: var(--products-title);
  font-size: 1.1rem;
  margin: 0 0 8px;
  color: var(--products-deep);
}
.page-products__qr-content p {
  font-size: 14px;
  line-height: 1.7;
  color: #2E3A46;
  margin: 0 0 14px;
}
.page-products__qr-content a {
  color: var(--products-blue);
  font-weight: 600;
  text-decoration-thickness: 2px;
}
.page-products__qr-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== 功能特性 ===== */
.page-products__features {
  padding-top: 72px;
  padding-bottom: 72px;
}
.page-products__features-head {
  max-width: 720px;
}
.page-products__features-layout {
  display: grid;
  gap: 32px;
  margin-top: 40px;
}
.page-products__features-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--products-white);
  box-shadow: var(--shadow-1);
}
.page-products__features-visual img {
  width: 100%;
  height: auto;
  display: block;
}
.page-products__features-list {
  display: grid;
  gap: 4px;
}
.page-products__feature-item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--products-line);
}
.page-products__feature-item:last-child {
  border-bottom: none;
}
.page-products__feature-num {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-family: var(--products-mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--products-coral);
  background: rgba(255, 107, 107, 0.12);
}
.page-products__feature-item h3 {
  font-family: var(--products-title);
  font-size: 1.05rem;
  margin: 0 0 6px;
  color: var(--products-ink);
}
.page-products__feature-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #45505B;
  margin: 0;
}

/* ===== 版本更新 ===== */
.page-products__updates {
  padding-top: 72px;
  padding-bottom: 72px;
}
.page-products__updates-head {
  max-width: 760px;
}
.page-products__update-visual {
  margin-top: 36px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.page-products__update-visual img {
  width: 100%;
  height: auto;
  display: block;
}
.page-products__version-table-wrap {
  margin-top: 32px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
}
.page-products__version-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  background: var(--products-white);
  font-size: 14px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.page-products__version-table th {
  background: var(--products-deep);
  color: var(--products-white);
  font-weight: 700;
  text-align: left;
  padding: 14px 18px;
  white-space: nowrap;
}
.page-products__version-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--products-line);
  color: #33414F;
  line-height: 1.6;
  vertical-align: top;
}
.page-products__version-table td:first-child {
  font-weight: 700;
  color: var(--products-blue);
  white-space: nowrap;
}
.page-products__version-table tr:last-child td {
  border-bottom: none;
}
.page-products__changelog {
  margin-top: 40px;
  background: var(--products-paper);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.page-products__changelog h3 {
  font-family: var(--products-title);
  font-size: 1.05rem;
  margin: 0 0 16px;
  color: var(--products-deep);
}
.page-products__changelog ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-products__changelog li {
  display: flex;
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: #33414F;
  align-items: flex-start;
}
.page-products__update-note {
  margin-top: 24px;
  font-size: 14px;
  color: #5A6672;
}
.page-products__update-note a {
  color: var(--products-blue);
  font-weight: 600;
}

/* ===== 系统要求 ===== */
.page-products__requirements {
  padding-top: 72px;
  padding-bottom: 72px;
}
.page-products .section-head--light .section-head__intro {
  color: var(--products-lime);
}
.page-products .section-head--light .section-head__title {
  color: var(--products-white);
}
.page-products .section-head--light .section-head__desc {
  color: rgba(255, 255, 255, 0.82);
}
.page-products__req-grid {
  display: grid;
  gap: 14px;
  margin-top: 36px;
}
.page-products__req-item {
  border: 1px solid var(--products-deep-line);
  background: rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  transition: background 0.2s;
}
.page-products__req-item[open] {
  background: rgba(255, 255, 255, 0.1);
}
.page-products__req-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  padding: 18px 22px;
  font-family: var(--products-title);
  font-size: 15px;
  font-weight: 700;
  color: var(--products-white);
}
.page-products__req-item summary::-webkit-details-marker {
  display: none;
}
.page-products__req-item summary::after {
  content: "+";
  font-family: var(--products-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--products-lime);
  transition: transform 0.2s;
}
.page-products__req-item[open] summary::after {
  transform: rotate(45deg);
}
.page-products__req-body {
  padding: 0 22px 20px;
  display: grid;
  gap: 8px;
}
.page-products__req-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
}
.page-products__req-body strong {
  color: var(--products-white);
}
.page-products__req-help {
  margin-top: 28px;
  padding: 18px 22px;
  border-left: 4px solid var(--products-coral);
  background: rgba(255, 255, 255, 0.08);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.page-products__req-help p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
}
.page-products__req-help a {
  color: var(--products-lime);
  font-weight: 600;
}

/* ===== 桌面端升级 ===== */
@media (min-width: 768px) {
  .page-products__hero-grid {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: center;
    gap: 56px;
  }
  .page-products__hero {
    padding: 48px 0 110px;
  }
  .page-products__stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-products__platform-view {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
  }
  .page-products__platform-view--mobile {
    grid-template-columns: 240px 1fr;
  }
  .page-products__os-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-products__qr-strip {
    grid-template-columns: 220px 1fr;
    align-items: center;
  }
  .page-products__features-layout {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    gap: 48px;
  }
  .page-products__req-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (min-width: 1080px) {
  .page-products__download {
    padding-top: 96px;
    padding-bottom: 100px;
  }
  .page-products__features {
    padding-top: 96px;
    padding-bottom: 96px;
  }
  .page-products__updates {
    padding-top: 96px;
    padding-bottom: 96px;
  }
  .page-products__requirements {
    padding-top: 96px;
    padding-bottom: 96px;
  }
  .page-products__platform-shot {
    max-width: 720px;
  }
  .page-products__phone-frame {
    max-width: 260px;
  }
  .page-products__changelog {
    padding: 32px 36px;
  }
}