.page-products {
  padding-bottom: clamp(48px, 7vw, 96px);
  color: var(--paper);
}

.page-products a {
  color: inherit;
}

.page-products .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  padding-top: clamp(22px, 3.6vw, 46px);
  padding-bottom: clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(360px, 38%);
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--amber), var(--rose));
}

.page-products .prod-hero h1 {
  margin: 12px 0 0;
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: clamp(32px, 5.6vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-products .prod-lede {
  max-width: 720px;
  margin: 18px 0 0;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 图例横带 ---------- */
.page-products .legend-band {
  list-style: none;
  margin: clamp(24px, 3.6vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .legend-card {
  display: grid;
  gap: 6px;
  padding: 16px 18px 16px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--chip, var(--line));
  border-radius: 2px;
  box-shadow: var(--shadow-panel);
}

.page-products .legend-card--p { --chip: var(--cyan); }
.page-products .legend-card--r { --chip: var(--amber); }
.page-products .legend-card--v { --chip: var(--rose); }

.page-products .legend-card__code {
  font-size: var(--fs-20);
  letter-spacing: 0.02em;
  color: var(--chip);
}

.page-products .legend-card__name {
  font-family: var(--ff-display);
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--paper);
}

.page-products .legend-card__desc {
  font-size: var(--fs-14);
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 章节节奏 ---------- */
.page-products .prod-tabs-section,
.page-products .prod-section {
  margin-top: clamp(38px, 5.6vw, 76px);
}

.page-products .prod-section-title {
  margin: 8px 0 0;
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(23px, 3.3vw, 34px);
  line-height: 1.2;
  color: var(--white);
}

.page-products .prod-copy {
  max-width: 720px;
  margin: 14px 0 0;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--mist);
}

.page-products .prod-hint {
  max-width: 720px;
  margin: 14px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--accent, var(--line));
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

.page-products .prod-sub {
  margin: clamp(22px, 3vw, 30px) 0 10px;
  font-family: var(--ff-display);
  font-size: var(--fs-16);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--paper);
}

/* ---------- 分段切换 ---------- */
.page-products .tabs {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .tabs__list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.page-products .tabs__list::-webkit-scrollbar {
  display: none;
}

.page-products .tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 11px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-bottom: 3px solid transparent;
  border-radius: 2px;
  color: var(--mist);
  font-family: var(--ff-body);
  font-size: var(--fs-14);
  line-height: 1.2;
  cursor: pointer;
  transition: color var(--t), border-color var(--t), background var(--t);
}

.page-products .tab--p { --accent: var(--cyan); }
.page-products .tab--r { --accent: var(--amber); }
.page-products .tab--v { --accent: var(--rose); }

.page-products .tab__idx {
  font-size: var(--fs-16);
  color: var(--accent, var(--mist));
}

.page-products .tab:hover {
  color: var(--paper);
}

.page-products .tab[aria-selected="true"] {
  background: var(--ink);
  color: var(--white);
  border-color: var(--line);
  border-bottom-color: var(--accent, var(--line));
}

.page-products .tab:focus-visible {
  outline: 2px solid var(--accent, var(--cyan));
  outline-offset: 2px;
}

.page-products .tabpanel {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .prod-panel--p { --accent: var(--cyan); }
.page-products .prod-panel--r { --accent: var(--amber); }
.page-products .prod-panel--v { --accent: var(--rose); }

/* ---------- 面板内主次分栏 ---------- */
.page-products .prod-split {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.page-products .prod-main {
  min-width: 0;
}

.page-products .prod-side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-products .prod-title {
  margin: 0 0 14px;
  padding-left: 14px;
  border-left: 4px solid var(--accent, var(--line));
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(21px, 2.8vw, 29px);
  line-height: 1.3;
  color: var(--white);
}

/* ---------- 表格 ---------- */
.page-products .table-scroll {
  margin-top: 12px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--panel);
}

.page-products .data-table,
.page-products .map-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-14);
}

.page-products .data-table {
  min-width: 540px;
}

.page-products .map-table {
  min-width: 720px;
}

.page-products .data-table th,
.page-products .data-table td,
.page-products .map-table th,
.page-products .map-table td {
  padding: 12px 15px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-products .data-table thead th,
.page-products .map-table thead th {
  font-family: var(--ff-display);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--mist);
  background: rgba(42, 47, 58, 0.45);
  white-space: nowrap;
}

.page-products .data-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.018);
}

.page-products .data-table tbody tr:hover,
.page-products .map-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.04);
}

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

.page-products .data-table .cell-code {
  color: var(--accent, var(--paper));
  white-space: nowrap;
}

.page-products .map-table tbody th {
  font-weight: 500;
  color: var(--paper);
  white-space: nowrap;
}

.page-products .map-table .cell-prefix {
  font-size: var(--fs-16);
  color: var(--mist);
}

.page-products .map-table tr[data-line="p"] .cell-prefix { color: var(--cyan); }
.page-products .map-table tr[data-line="r"] .cell-prefix { color: var(--amber); }
.page-products tr[data-line="v"] .cell-prefix { color: var(--rose); }

.page-products .map-table tr[data-line="p"] th { border-left: 3px solid var(--cyan); }
.page-products .map-table tr[data-line="r"] th { border-left: 3px solid var(--amber); }
.page-products .map-table tr[data-line="v"] th { border-left: 3px solid var(--rose); }

/* ---------- 旁注卡 ---------- */
.page-products .side-card {
  padding: 16px 18px 18px;
  background: rgba(21, 24, 29, 0.85);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent, var(--line));
  border-radius: 2px;
}

.page-products .side-card__title {
  margin: 0;
  font-family: var(--ff-display);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent, var(--paper));
}

.page-products .side-card__foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--mist);
}

.page-products .step-list {
  list-style: none;
  counter-reset: prodstep;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .step-list li {
  position: relative;
  padding-left: 30px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--mist);
}

.page-products .step-list li::before {
  counter-increment: prodstep;
  content: counter(prodstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--ff-mono);
  font-size: var(--fs-12);
  color: var(--accent, var(--mist));
}

.page-products .plain-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .plain-list li {
  position: relative;
  padding-left: 16px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--mist);
}

.page-products .plain-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--accent, var(--line));
}

/* ---------- 区间列表 ---------- */
.page-products .range-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .range-item {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .range-item__code {
  font-size: var(--fs-14);
  color: var(--accent, var(--paper));
  white-space: nowrap;
}

.page-products .range-item__text {
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 图片 ---------- */
.page-products .figure {
  margin: 20px 0 0;
}

.page-products .figure--center {
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.page-products .figure__media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--panel);
}

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

.page-products .figure__cap {
  margin-top: 8px;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--mist);
}

.page-products .figure__cap .mono {
  color: var(--accent, var(--paper));
}

/* ---------- 编号体系 ---------- */
.page-products .code-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .code-card {
  position: relative;
  padding: 20px 20px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 4px solid var(--chip, var(--line));
  border-radius: 2px;
}

.page-products .code-card--p { --chip: var(--cyan); --accent: var(--cyan); }
.page-products .code-card--r { --chip: var(--amber); --accent: var(--amber); }
.page-products .code-card--v { --chip: var(--rose); --accent: var(--rose); }

.page-products .code-card__prefix {
  margin: 0 0 12px;
  font-size: var(--fs-36);
  line-height: 1;
  color: var(--chip);
}

.page-products .code-card__list {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-products .code-card__list dt {
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .code-card__list dd {
  margin: 2px 0 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 使用场景 ---------- */
.page-products .device-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-products .device-card {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--panel);
}

.page-products .device-card--desktop {
  --accent: var(--cyan);
  border-left: 4px solid var(--cyan);
}

.page-products .device-card--mobile {
  --accent: var(--amber);
  border-left: 4px solid var(--amber);
}

.page-products .device-card__tag {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--accent);
}

.page-products .device-card__title {
  margin: 8px 0 0;
  font-family: var(--ff-display);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--white);
}

/* ---------- 延伸入口 ---------- */
.page-products .next-grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-products .next-card {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 2px;
  text-decoration: none;
  transition: border-color var(--t), transform var(--t), background var(--t);
}

.page-products .next-card:hover {
  background: rgba(255, 255, 255, 0.035);
  border-color: var(--mist);
  transform: translateY(-2px);
}

.page-products .next-card__tag {
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-products .next-card__name {
  font-family: var(--ff-display);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--white);
}

.page-products .next-card__desc {
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 行内链接 ---------- */
.page-products .inline-link {
  color: var(--accent, var(--paper));
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  transition: opacity var(--t);
}

.page-products .inline-link:hover {
  opacity: 0.72;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .legend-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .range-item {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 20px;
  }

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

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

@media (min-width: 900px) {
  .page-products .code-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-products .prod-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: start;
  }

  .page-products .prod-side {
    position: sticky;
    top: 84px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-products .tab,
  .page-products .next-card,
  .page-products .inline-link {
    transition: none;
  }

  .page-products .next-card:hover {
    transform: none;
  }
}