.page-products {
  --p-rail: 236px;
  --p-card-bg: linear-gradient(180deg, rgba(18, 61, 74, .44), rgba(11, 27, 43, .78));
}

/* ---------- 面包屑与首屏 ---------- */
.page-products .breadcrumb {
  padding-top: 18px;
}

.page-products .product-hero {
  padding: clamp(20px, 3.4vw, 40px) 0 clamp(24px, 4vw, 52px);
}

.page-products .hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-products .hero-lead h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 6vw, 60px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--txt-strong);
  max-width: 18em;
}

.page-products .hero-text {
  margin-top: 20px;
  max-width: 40em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--txt);
}

.page-products .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .hero-metrics {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.page-products .metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(18, 61, 74, .28);
  transition: background var(--t), border-color var(--t);
}

.page-products .metric:hover {
  background: rgba(18, 61, 74, .52);
  border-color: var(--line-hot);
}

.page-products .metric-num {
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
  letter-spacing: -.02em;
}

.page-products .metric-label {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--txt-mute);
}

/* ---------- 主体：左侧锚点 + 右侧卡片流 ---------- */
.page-products .product-body {
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-products .channel-layout {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
}

.page-products .channel-rail {
  border-left: 1px solid var(--line);
  padding-left: 18px;
}

.page-products .rail-title {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-gold);
  margin: 0 0 14px;
}

.page-products .channel-rail .toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.page-products .channel-rail .toc-link {
  display: inline-block;
  padding: 3px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--txt-mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-products .channel-rail .toc-link:hover,
.page-products .channel-rail .toc-link:focus-visible {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-products .channel-rail .toc-link[aria-current="true"] {
  color: var(--c-gold);
  border-bottom-color: var(--line-gold);
}

.page-products .rail-note {
  margin-top: 18px;
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--txt-mute);
  display: none;
}

/* ---------- 通道卡片 ---------- */
.page-products .channel-stream {
  display: grid;
  gap: clamp(20px, 2.6vw, 30px);
}

.page-products .channel-card {
  position: relative;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--line);
  background: var(--p-card-bg);
  scroll-margin-top: calc(var(--hdr) + 20px);
  transition: border-color var(--t), transform var(--t);
}

.page-products .channel-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(0, 229, 255, 0) 62%);
  opacity: .6;
}

.page-products .channel-card:hover,
.page-products .channel-card:focus-within {
  border-color: var(--line-hot);
  transform: translateY(-2px);
}

.page-products .card-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.page-products .card-num {
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--c-gold);
}

.page-products .card-title {
  margin: 0;
  font-size: clamp(21px, 2.8vw, 30px);
  line-height: 1.3;
  letter-spacing: -.005em;
  color: var(--txt-strong);
}

.page-products .card-intro {
  margin: 0 0 20px;
  max-width: 46em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--txt);
}

.page-products .card-main p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--txt);
}

.page-products .card-main a,
.page-products .next-link,
.page-products .channel-desc a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-hot);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-products .card-main a:hover,
.page-products .channel-desc a:hover {
  color: var(--c-soft);
  border-bottom-color: var(--c-soft);
}

.page-products .card-tail {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--txt-mute);
}

.page-products .card-grid {
  display: grid;
  gap: clamp(18px, 2.6vw, 32px);
  align-items: start;
}

/* ---------- 步骤列表 ---------- */
.page-products .step-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .step-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: rgba(11, 27, 43, .5);
  transition: border-color var(--t), background var(--t);
}

.page-products .step-item:hover {
  border-color: var(--line-gold);
  background: rgba(42, 27, 61, .42);
}

.page-products .step-index {
  flex: none;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--c-ink);
  background: var(--c-gold);
}

.page-products .step-text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--txt);
}

/* ---------- 通道对照 ---------- */
.page-products .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .channel-row {
  display: grid;
  gap: 8px 20px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: rgba(11, 27, 43, .46);
  transition: border-color var(--t), background var(--t);
}

.page-products .channel-row:hover {
  border-color: var(--line-hot);
  background: rgba(18, 61, 74, .5);
}

.page-products .channel-name {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-cyan);
}

.page-products .channel-fit {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-gold);
  align-self: center;
}

.page-products .channel-desc {
  margin: 0;
  font-size: 14.8px;
  line-height: 1.85;
  color: var(--txt);
}

/* ---------- 标签云 ---------- */
.page-products .card-grid--reverse {
  gap: clamp(20px, 2.6vw, 34px);
}

.page-products .tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 20px 0 4px;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--c-cyan);
  background: rgba(11, 27, 43, .55);
}

.page-products .tag-pill {
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: .06em;
  line-height: 1;
  padding: 9px 14px;
  border: 1px solid var(--line-2);
  background: transparent;
  color: var(--txt);
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast), transform var(--t-fast);
}

.page-products .tag-pill[data-heat="3"] {
  font-size: 16px;
  font-weight: 700;
  padding: 11px 18px;
  color: var(--txt-strong);
  border-color: var(--line-hot);
}

.page-products .tag-pill[data-heat="2"] {
  font-size: 14.5px;
  padding: 10px 16px;
  color: var(--c-soft);
}

.page-products .tag-pill[data-heat="1"] {
  font-size: 12.5px;
  color: var(--txt-mute);
}

.page-products .tag-pill:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
  transform: translateY(-2px);
}

.page-products .tag-pill[aria-pressed="true"] {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-ink);
  font-weight: 700;
}

.page-products .tag-pill:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}

/* ---------- 收藏与下载 ---------- */
.page-products .takeaway-list {
  margin: 18px 0 0;
  display: grid;
  gap: 12px;
}

.page-products .takeaway-item {
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: rgba(18, 61, 74, .34);
  transition: border-color var(--t), background var(--t);
}

.page-products .takeaway-item:hover {
  border-color: var(--line-gold);
  background: rgba(42, 27, 61, .38);
}

.page-products .takeaway-item dt {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--c-gold);
  margin-bottom: 6px;
}

.page-products .takeaway-item dd {
  margin: 0;
  font-size: 14.6px;
  line-height: 1.85;
  color: var(--txt);
}

/* ---------- 延伸入口 ---------- */
.page-products .next-links {
  margin-top: clamp(10px, 2vw, 20px);
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line-2);
}

.page-products .next-title {
  margin: 0 0 18px;
  font-size: clamp(18px, 2.2vw, 23px);
  color: var(--txt-strong);
  letter-spacing: -.005em;
}

.page-products .next-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .next-link {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-gold);
  background: rgba(11, 27, 43, .5);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--t), background var(--t), transform var(--t);
}

.page-products .next-link:hover {
  border-color: var(--line-hot);
  border-left-color: var(--c-cyan);
  background: rgba(18, 61, 74, .5);
  transform: translateY(-2px);
}

.page-products .next-label {
  display: block;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-gold);
  margin-bottom: 8px;
}

.page-products .next-text {
  display: block;
  font-size: 14.8px;
  line-height: 1.8;
  color: var(--txt);
}

/* ---------- 图片容器微调 ---------- */
.page-products .media-frame {
  margin: 0;
  border: 1px solid var(--line);
  background: rgba(11, 27, 43, .6);
  overflow: hidden;
}

.page-products .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.05);
  transition: filter var(--t), transform var(--t);
}

.page-products .media-frame:hover img {
  filter: saturate(1.2);
  transform: scale(1.012);
}

.page-products .media-frame__caption {
  padding: 10px 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--txt-mute);
  border-top: 1px solid var(--line);
  background: rgba(18, 61, 74, .4);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .hero-actions .btn {
    min-width: 176px;
    text-align: center;
  }

  .page-products .hero-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .channel-row {
    grid-template-columns: 128px 108px minmax(0, 1fr);
    align-items: start;
  }

  .page-products .next-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .card-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }

  .page-products .card-grid--reverse {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  }

  .page-products .card-grid > .card-main {
    min-width: 0;
  }

  .page-products .takeaway-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-products .hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-products .hero-text {
    font-size: 17px;
  }

  .page-products .channel-layout {
    grid-template-columns: var(--p-rail) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-products .channel-rail {
    position: sticky;
    top: calc(var(--hdr) + 22px);
    align-self: start;
  }

  .page-products .channel-rail .toc-list {
    flex-direction: column;
    gap: 10px;
  }

  .page-products .channel-rail .toc-link {
    font-size: 14.5px;
  }

  .page-products .rail-note {
    display: block;
  }

  .page-products .next-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}