/* =============================================
   平台服务页专属样式
   作用域：.page-products
   ============================================= */
.page-products {
  --card-bg: rgba(18, 36, 59, 0.72);
  --card-border: rgba(255, 255, 255, 0.15);
  --card-border-active: rgba(232, 181, 74, 0.55);
  padding-bottom: 72px;
}

.page-products .breadcrumb {
  padding-top: 40px;
  margin-bottom: 8px;
}

.page-products figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* 页面首屏声明 ======================================= */
.page-products__head {
  padding: 56px 0 36px;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.page-products__head::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  background: var(--gradient);
  opacity: 0.7;
}

.page-products__lead {
  max-width: 68ch;
  margin-top: 22px;
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.85;
  color: var(--muted);
}

.page-products__anchorlinks {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 指标面板 ============================================ */
.product-metrics {
  padding: 36px 0 12px;
}

.product-metrics__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.product-metrics__item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 20px 18px;
  position: relative;
  transition: border-color var(--transition), transform var(--transition);
}

.product-metrics__item::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity var(--transition);
}

.product-metrics__item:hover {
  border-color: var(--card-border-active);
}

.product-metrics__item:hover::before {
  opacity: 1;
}

.product-metrics__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.product-metrics__value {
  display: block;
  margin-top: 10px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 30px;
  line-height: 1.25;
  color: var(--text);
}

.product-metrics__item--wide {
  grid-column: span 2;
}

/* 核心引擎区块 ======================================== */
.product-core {
  padding-top: 60px;
}

.product-core .gradient-line {
  margin: 36px 0;
}

.capability-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 36px;
}

.capability-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 24px 20px;
  position: relative;
  transition: border-color var(--transition), transform var(--transition);
}

.capability-card:hover {
  border-color: var(--card-border-active);
  transform: translateY(-2px);
}

.capability-card__index {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--card-border);
  background: rgba(10, 22, 40, 0.5);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--gold);
  margin-bottom: 16px;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.capability-card:hover .capability-card__index {
  background: rgba(232, 181, 74, 0.12);
  border-color: var(--card-border-active);
  color: var(--gold);
}

.capability-card__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  margin: 0 0 8px;
}

.capability-card__desc {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

.product-core__visual-wrap {
  margin-top: 32px;
  display: grid;
  gap: 24px;
}

.product-core__note {
  background: linear-gradient(135deg, rgba(18, 36, 59, 0.9), rgba(28, 48, 80, 0.55));
  border: 1px solid var(--card-border);
  padding: 26px 24px;
}

.product-core__note-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  border: 1px solid var(--line-gold);
  padding: 4px 10px;
  margin-bottom: 14px;
}

.product-core__note p {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
}

/* 数据源接入 ========================================== */
.product-sources {
  padding-top: 72px;
}

.source-layout {
  display: grid;
  gap: 24px;
  margin: 34px 0 40px;
}

.source-catalog {
  background: rgba(10, 22, 40, 0.5);
  border: 1px solid var(--card-border);
  padding: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}

.source-catalog__title {
  flex-basis: 100%;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 4px;
}

.source-catalog__tag {
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text);
  background: rgba(18, 36, 59, 0.6);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.source-catalog__tag:hover {
  border-color: var(--line-gold);
  color: var(--gold);
  background: rgba(232, 181, 74, 0.08);
}

.source-layout__node {
  margin: 0;
  align-self: center;
}

.source-layout__node img {
  width: 100%;
  height: auto;
}

.source-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.source-step {
  border: 1px solid var(--card-border);
  background: rgba(18, 36, 59, 0.5);
  padding: 22px 20px 22px 84px;
  position: relative;
  transition: border-color var(--transition), background var(--transition);
}

.source-step:hover {
  border-color: var(--line-gold);
  background: rgba(18, 36, 59, 0.8);
}

.source-step__num {
  position: absolute;
  left: 20px;
  top: 20px;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--gold);
  border: 1px solid var(--card-border);
  background: rgba(10, 22, 40, 0.6);
}

.source-step h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  margin: 0 0 6px;
}

.source-step p {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

/* 面板测试版与收藏 ==================================== */
.product-trial {
  padding-top: 72px;
}

.trial-layout {
  display: grid;
  gap: 32px;
  margin-top: 36px;
}

.trial-copy__lead {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.65;
  color: var(--text);
  margin: 0 0 20px;
}

.trial-features {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.trial-features li {
  border-left: 2px solid var(--line-gold);
  background: rgba(18, 36, 59, 0.6);
  padding: 18px 20px;
  transition: background var(--transition);
}

.trial-features li:hover {
  background: rgba(18, 36, 59, 0.9);
}

.trial-features strong {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  margin-bottom: 6px;
}

.trial-features span {
  display: block;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.trial-copy__footnote {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin-bottom: 24px;
}

.trial-visual {
  margin: 0;
}

/* 电脑版下载 ========================================== */
.product-desktop {
  padding-top: 72px;
}

.desktop-layout {
  display: grid;
  gap: 28px;
  margin-top: 36px;
  align-items: center;
}

.desktop-visual {
  margin: 0;
}

.desktop-actions__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 20px;
  color: var(--text);
  margin: 0 0 8px;
}

.desktop-actions__desc {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 22px;
}

.desktop-actions .btn + .btn {
  margin-left: 10px;
}

.version-table-wrap {
  margin-top: 44px;
  overflow-x: auto;
  border: 1px solid var(--card-border);
}

.version-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  background: rgba(10, 22, 40, 0.45);
}

.version-table caption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.version-table th,
.version-table td {
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text);
  text-align: left;
}

.version-table thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
  background: rgba(18, 36, 59, 0.9);
}

.version-table tbody th {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold);
  background: rgba(18, 36, 59, 0.5);
}

.version-table tbody tr {
  transition: background var(--transition);
}

.version-table tbody tr:hover {
  background: rgba(232, 181, 74, 0.08);
}

/* 会员中心 ============================================ */
.product-member {
  padding-top: 72px;
}

.member-layout {
  display: grid;
  gap: 32px;
  margin-top: 36px;
}

.member-visual {
  margin: 0;
}

.member-access {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 28px 26px;
}

.member-access h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 19px;
  color: var(--text);
  margin: 0 0 20px;
}

.member-access__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.member-access__list li {
  display: flex;
  gap: 12px;
  align-items: center;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text);
  background: rgba(18, 36, 59, 0.5);
  padding: 14px 16px;
  border: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.member-access__list li:hover {
  border-color: var(--line-gold);
  background: rgba(18, 36, 59, 0.8);
}

.member-access__status {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--teal);
  width: 30px;
  height: 30px;
  border: 1px solid rgba(42, 157, 143, 0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* 反馈收束 ============================================ */
.product-feedback {
  padding-top: 72px;
}

.feedback-band {
  position: relative;
  background: linear-gradient(135deg, #12243B, #0A1628 68%);
  border: 1px solid var(--line-gold);
  padding: 46px 28px 42px;
}

.feedback-band::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: var(--gradient);
}

.feedback-band__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 27px;
  line-height: 1.3;
  color: var(--text);
  margin: 10px 0 12px;
}

.feedback-band__intro {
  max-width: 620px;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
  margin: 0 0 28px;
}

.feedback-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 平板与桌面适配 ====================================== */
@media (min-width: 720px) {
  .product-metrics__grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .product-metrics__item--wide {
    grid-column: span 1;
  }

  .capability-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-core__visual-wrap {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: stretch;
  }

  .source-layout {
    grid-template-columns: 1fr 200px;
    align-items: center;
    gap: 28px;
  }

  .source-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .trial-layout {
    grid-template-columns: 1fr 1.1fr;
    align-items: center;
  }

  .desktop-layout {
    grid-template-columns: 1fr 0.85fr;
  }

  .member-layout {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: center;
  }

  .feedback-band {
    padding: 56px 44px 50px;
  }
}

@media (min-width: 1024px) {
  .page-products__head {
    padding: 64px 0 44px;
  }

  .page-products__lead {
    font-size: 19px;
  }

  .product-metrics {
    padding: 44px 0 16px;
  }

  .capability-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
  }

  .capability-card {
    padding: 18px 14px;
  }

  .capability-card__index {
    width: 34px;
    height: 34px;
    font-size: 12px;
    margin-bottom: 12px;
  }

  .capability-card__title {
    font-size: 16px;
  }

  .capability-card__desc {
    font-size: 13px;
  }

  .source-steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .source-step {
    padding: 24px 18px 22px;
  }

  .source-step__num {
    position: static;
    width: 36px;
    height: 36px;
    margin-bottom: 14px;
  }

  .version-table th,
  .version-table td {
    padding: 16px 20px;
  }

  .feedback-band__title {
    font-size: 32px;
  }
}