.page-products {
  --pp-index-w: 250px;
  --pp-gap: 46px;
  position: relative;
  padding-bottom: 88px;
  color: var(--text);
  background: var(--bg-0);
}

.page-products .breadcrumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-products__hero {
  position: relative;
  padding: 32px 0 0;
  overflow: hidden;
}

.page-products__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 68px 68px;
  opacity: 0.3;
  -webkit-mask-image: radial-gradient(ellipse 88% 92% at 16% 0%, #000 0%, transparent 74%);
  mask-image: radial-gradient(ellipse 88% 92% at 16% 0%, #000 0%, transparent 74%);
  pointer-events: none;
}

.page-products__hero .shell {
  position: relative;
  z-index: 1;
}

.page-products__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products__eyebrow::before {
  content: "";
  width: 36px;
  height: 1px;
  background: currentColor;
}

.page-products h1 {
  margin: 0 0 20px;
  max-width: 15em;
  font-size: clamp(30px, 6.4vw, 60px);
  font-weight: 800;
  font-style: italic;
  line-height: 1.08;
  letter-spacing: -0.022em;
}

.page-products__lede {
  max-width: 64ch;
  margin: 0 0 32px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-products__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 16px;
  margin: 0;
  padding: 24px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products__metric-num {
  display: block;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1;
  color: var(--text);
}

.page-products__metric-label {
  display: block;
  margin-top: 9px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 用途跳转带 ---------- */
.page-products__jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-top: 34px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-products__jump-label {
  margin-right: 6px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products__chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-1);
  color: var(--muted);
  font-size: 13.5px;
  text-decoration: none;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease),
    transform var(--t-fast) var(--ease);
}

.page-products__chip:hover {
  color: var(--text);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-products__chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

/* ---------- 主体布局 ---------- */
.page-products__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: 48px;
}

.page-products__index-card {
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, var(--bg-1), rgba(14, 23, 48, 0.35));
}

.page-products__index-title {
  margin: 0 0 16px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products__index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products__index-item a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: var(--radius-s);
  color: var(--muted);
  font-size: 14.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease);
}

.page-products__index-item a:hover,
.page-products__index-item a:focus-visible {
  color: var(--text);
  background: var(--bg-2);
  border-left-color: var(--cyan);
}

.page-products__index-no {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--cyan);
}

.page-products__content {
  display: grid;
  gap: 62px;
  min-width: 0;
}

/* ---------- 章节通用 ---------- */
.page-products__section {
  scroll-margin-top: 112px;
  min-width: 0;
}

.page-products__sec-head {
  margin-bottom: 24px;
  padding-left: 18px;
  border-left: 2px solid var(--line);
}

.page-products__sec-no {
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-products__section h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.012em;
}

.page-products__section h3 {
  margin: 26px 0 10px;
  font-size: 16.5px;
  font-weight: 700;
}

.page-products__section h3.page-products__sub {
  margin-top: 24px;
}

.page-products__section p {
  max-width: 68ch;
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.86;
  color: var(--muted);
}

/* ---------- 图片 ---------- */
.page-products__figure {
  margin: 24px 0;
}

.page-products__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--bg-1);
  object-fit: cover;
}

.page-products__figure .media__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 资源条目 ---------- */
.page-products__res-list {
  display: grid;
  gap: 0;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products__res {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 16px;
  padding: 20px 6px;
  border-bottom: 1px solid var(--line);
  transition: background var(--t-base) var(--ease), padding-left var(--t-base) var(--ease);
}

.page-products__res:hover {
  background: var(--bg-1);
  padding-left: 14px;
}

.page-products__res-no {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: var(--bg-1);
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 15px;
  color: var(--cyan);
}

.page-products__res-body {
  min-width: 0;
}

.page-products__res-body h3 {
  margin: 2px 0 6px;
  font-size: 16.5px;
  font-weight: 700;
}

.page-products__res-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products__res > .btn {
  grid-column: 1 / -1;
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 数据表 ---------- */
.page-products .data-table-wrap {
  margin: 20px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--bg-1);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .data-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-products__table-cap {
  padding: 14px 18px 2px;
  text-align: left;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-products .data-table th,
.page-products .data-table td {
  padding: 13px 18px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
}

.page-products .data-table thead th {
  background: var(--bg-2);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .data-table tbody th {
  font-weight: 500;
  color: var(--text);
}

.page-products .data-table tbody tr:nth-child(even) {
  background: rgba(22, 34, 74, 0.42);
}

.page-products .data-table tbody tr:hover {
  background: var(--bg-2);
}

.page-products .data-table tbody tr:last-child th,
.page-products .data-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .data-table .is-key {
  color: var(--cyan);
  font-weight: 700;
}

.page-products .data-table .tag {
  font-style: normal;
}

/* ---------- 使用场景 ---------- */
.page-products__scenes {
  display: grid;
  gap: 12px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-products__scene {
  display: grid;
  gap: 7px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--bg-1);
  transition: transform var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.page-products__scene:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
}

.page-products__scene b {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.page-products__scene span {
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 使用工具分屏 ---------- */
.page-products__split {
  display: grid;
  gap: 22px;
  align-items: start;
}

.page-products__split .page-products__figure {
  margin-top: 0;
}

.page-products__split-body h3 {
  margin-top: 0;
}

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

.page-products__ticks li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products__ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 13px;
  height: 2px;
  background: var(--cyan);
}

.page-products__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products__badges li {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-1);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* ---------- 测试版字段 ---------- */
.page-products__fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--line);
  overflow: hidden;
}

.page-products__field {
  padding: 16px 18px;
  background: var(--bg-1);
}

.page-products__field b {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  color: var(--text);
}

.page-products__field span {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-products__note {
  padding: 14px 16px;
  border-left: 2px solid var(--orange);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: rgba(255, 122, 41, 0.07);
  font-size: 14px !important;
  color: var(--mist) !important;
}

/* ---------- 教程折叠组 ---------- */
.page-products__group {
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--bg-1);
  overflow: hidden;
  transition: border-color var(--t-base) var(--ease);
}

.page-products__group[open] {
  border-color: var(--bg-2);
}

.page-products__group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--text);
  transition: background var(--t-fast) var(--ease);
}

.page-products__group summary::-webkit-details-marker {
  display: none;
}

.page-products__group summary::after {
  content: "+";
  font-family: var(--font-data);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-products__group[open] summary::after {
  content: "–";
}

.page-products__group summary:hover {
  background: var(--bg-2);
}

.page-products__group summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -4px;
}

.page-products__group-body {
  padding: 0 18px 18px;
}

.page-products__lessons {
  counter-reset: pl;
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products__lessons li {
  position: relative;
  counter-increment: pl;
  padding-left: 30px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products__lessons li::before {
  content: counter(pl, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 4px;
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--cyan);
}

.page-products__inline-link {
  margin-top: 18px !important;
  font-size: 14.5px !important;
}

.page-products__inline-link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, 0.45);
}

.page-products__inline-link a:hover {
  border-bottom-color: var(--cyan);
}

.page-products__inline-link a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 结尾区 ---------- */
.page-products__cta {
  position: relative;
  padding: 34px 24px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background:
    radial-gradient(120% 150% at 0% 0%, rgba(34, 224, 214, 0.15), transparent 58%),
    radial-gradient(120% 150% at 100% 100%, rgba(255, 122, 41, 0.12), transparent 56%),
    var(--bg-1);
  overflow: hidden;
}

.page-products__cta h2 {
  margin: 0 0 12px;
  font-size: clamp(20px, 3.2vw, 27px);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: -0.01em;
}

.page-products__cta p {
  max-width: 60ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-products__cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-products__cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 22px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products__cta-links a {
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-products__cta-links a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-products__cta-links a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products__metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-products__cta {
    padding: 42px 38px 36px;
  }
}

@media (min-width: 768px) {
  .page-products__res {
    grid-template-columns: 56px minmax(0, 1fr) auto;
    align-items: center;
    gap: 22px;
  }

  .page-products__res > .btn {
    grid-column: auto;
    margin-top: 0;
  }
}

@media (min-width: 900px) {
  .page-products__split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
  }
}

@media (min-width: 1024px) {
  .page-products__layout {
    grid-template-columns: var(--pp-index-w) minmax(0, 1fr);
    gap: var(--pp-gap);
  }

  .page-products__index {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-products__index-list {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products__index-item a {
    white-space: normal;
  }

  .page-products__hero {
    padding-top: 44px;
  }

  .page-products__content {
    gap: 76px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products__chip,
  .page-products__res,
  .page-products__scene,
  .page-products__group,
  .page-products__cta-links a {
    transition: none;
  }
}