.page-products {
  --pn-accent: var(--coral);
  --pn-accent-deep: var(--coral-700);
  --pn-gold-ink: #8a5a10;
  display: block;
  overflow-x: hidden;
  background: var(--mist);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
}

.page-products *,
.page-products *::before,
.page-products *::after {
  box-sizing: border-box;
}

.page-products [id] {
  scroll-margin-top: 96px;
}

.page-products .shell {
  box-sizing: border-box;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
}

.page-products .breadcrumbs__link {
  color: var(--sea-500);
  text-decoration: none;
}

.page-products .breadcrumbs__link:hover {
  color: var(--coral-700);
  text-decoration: underline;
}

/* ---------- 通用排版 ---------- */
.page-products .section-index {
  display: block;
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 600;
  line-height: 1;
  color: var(--sea-500);
}

.page-products .section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.2vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 10px 0 14px;
  color: var(--sea-900);
}

.page-products .section-lead {
  max-width: 44em;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--slate);
}

.page-products .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--coral-700);
}

.page-products .mono {
  font-family: var(--font-mono);
  font-weight: 500;
}

.page-products .pn-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

.page-products .pn-note a {
  color: var(--coral-700);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pn-note a:hover {
  color: var(--sea-900);
}

/* ---------- 按钮 ---------- */
.page-products .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 0;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.page-products .btn--primary {
  background: var(--coral);
  border-color: var(--coral);
  color: #fff;
}

.page-products .btn--primary:hover {
  background: var(--coral-700);
  border-color: var(--coral-700);
}

.page-products .btn--line {
  background: transparent;
  border-color: var(--sea-500);
  color: var(--sea-700);
}

.page-products .btn--line:hover {
  border-color: var(--coral);
  color: var(--coral-700);
}

/* ---------- 首屏 ---------- */
.page-products .pn-hero {
  padding: 20px 0 48px;
}

.page-products .pn-hero__grid {
  display: grid;
  gap: 32px;
}

.page-products .pn-hero h1 {
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--sea-900);
}

.page-products .pn-hero__lead {
  max-width: 34em;
  margin: 0 0 26px;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--sea-700);
}

.page-products .pn-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
}

/* ---------- 概览条 ---------- */
.page-products .pn-overview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-products .overview__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--pearl);
}

.page-products .overview__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--coral-700);
  word-break: break-word;
}

.page-products .overview__label {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--slate);
}

.page-products .pn-overview--pearl {
  border-color: var(--line);
}

/* ---------- 图像容器 ---------- */
.page-products .detail-zoom {
  margin: 0;
  padding: 10px;
  background: var(--pearl);
  border: 1px solid var(--line);
}

.page-products .detail-zoom__image {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-products .detail-zoom__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--slate);
}

.page-products .media-frame {
  margin: 0;
  background: var(--pearl);
  border: 1px solid var(--line-soft);
}

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

.page-products .media-frame--wide .media-frame__img {
  aspect-ratio: 16 / 9;
}

.page-products .media-frame__caption {
  padding: 10px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--slate);
  border-top: 1px solid var(--line-soft);
}

.page-products .pn-wide-media {
  margin-bottom: 28px;
}

.page-products .pn-band .media-frame__img {
  aspect-ratio: 2 / 1;
}

.page-products .pn-rules__media .detail-zoom__image {
  aspect-ratio: 1 / 1;
}

/* ---------- 区块 ---------- */
.page-products .pn-section {
  padding: 56px 0;
}

.page-products .pn-section--tight {
  padding: 12px 0 40px;
}

.page-products .pn-head {
  max-width: 48em;
  margin-bottom: 30px;
}

/* ---------- 表格 ---------- */
.page-products .pn-table-wrap {
  background: var(--pearl);
  border: 1px solid var(--line-soft);
}

.page-products .pn-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .pn-table__caption {
  padding: 14px 18px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--slate);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pn-table th,
.page-products .pn-table td {
  text-align: left;
  padding: 14px 18px;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pn-table thead th {
  background: var(--sea-700);
  color: var(--pearl);
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--gold);
}

.page-products .pn-table tbody th {
  width: 24%;
  font-weight: 700;
  color: var(--sea-900);
  background: rgba(232, 238, 242, 0.55);
}

.page-products .pn-table tbody tr:nth-child(even) td {
  background: rgba(232, 238, 242, 0.45);
}

.page-products .pn-table tbody tr:hover td,
.page-products .pn-table tbody tr:hover th {
  background: rgba(31, 168, 160, 0.09);
}

/* ---------- 安装步骤 ---------- */
.page-products .pn-step-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.page-products .pn-chip {
  display: inline-block;
  padding: 8px 14px;
  background: var(--pearl);
  border: 1px solid var(--line);
  color: var(--sea-700);
  font-family: var(--font-mono);
  font-size: 12px;
  text-decoration: none;
  transition: border-color 160ms ease, color 160ms ease;
}

.page-products .pn-chip:hover {
  border-color: var(--coral);
  color: var(--coral-700);
}

.page-products .pn-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pn-step {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 0 18px;
  padding: 0 0 34px;
}

.page-products .pn-step::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 56px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.page-products .pn-step:last-child::before {
  display: none;
}

.page-products .pn-step__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--pearl);
  border: 1px solid var(--coral);
  color: var(--coral-700);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.page-products .pn-step__main {
  padding: 4px 0 0;
}

.page-products .pn-step__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--sea-900);
}

.page-products .pn-step__body {
  max-width: 40em;
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-products .pn-step__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
}

.page-products .pn-step:target {
  background: rgba(255, 107, 61, 0.07);
  outline: 1px solid rgba(255, 107, 61, 0.35);
}

.page-products .pn-step:target .pn-step__num {
  background: var(--coral);
  border-color: var(--coral-700);
  color: #fff;
}

/* ---------- 五段结构 ---------- */
.page-products .pn-rules {
  display: grid;
  gap: 36px;
}

.page-products .pn-rulelist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-products .pn-rulelist__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 2px 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pn-rulelist__num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--coral-700);
}

.page-products .pn-rulelist__item h3 {
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--sea-900);
}

.page-products .pn-rulelist__item p {
  max-width: 34em;
  margin: 4px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 三种标注 ---------- */
.page-products .pn-marks {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 0 0 8px;
  padding: 0;
}

.page-products .pn-mark {
  padding: 16px 18px;
  background: var(--pearl);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--sea-500);
}

.page-products .pn-mark__key {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--sea-700);
}

.page-products .pn-mark p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink);
}

/* ---------- 筛选 ---------- */
.page-products .pn-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 20px;
}

.page-products .filter-btn {
  min-height: 38px;
  padding: 8px 16px;
  background: var(--pearl);
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--sea-700);
  font-family: var(--font-mono);
  font-size: 12.5px;
  cursor: pointer;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.page-products .filter-btn:hover {
  border-color: var(--coral);
  color: var(--coral-700);
}

.page-products .filter-btn[aria-pressed="true"] {
  background: var(--coral);
  border-color: var(--coral);
  color: #fff;
}

.page-products .filter-empty {
  margin: 20px 0 0;
  padding: 18px;
  border: 1px dashed var(--line);
  font-size: 14px;
  color: var(--slate);
}

/* ---------- 规则条目卡片 ---------- */
.page-products .pn-ledger-grid {
  display: grid;
  gap: 16px;
}

.page-products .pn-ledger-grid .is-out,
.page-products [data-filter-item].is-out {
  display: none;
}

.page-products .pn-ledger {
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
  padding: 18px 18px 16px;
  background: var(--pearl);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--coral);
}

.page-products .pn-ledger .ledger__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .pn-ledger .ledger__index {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 600;
  line-height: 1;
  color: var(--sea-500);
}

.page-products .pn-ledger .ledger__title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--sea-900);
}

.page-products .pn-ledger .ledger__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink);
}

.page-products .pn-ledger .ledger__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--slate);
}

.page-products .tag {
  display: inline-block;
  padding: 3px 9px;
  border: 1px solid currentColor;
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  white-space: nowrap;
}

.page-products .tag--add {
  color: var(--teal-700);
  background: rgba(31, 168, 160, 0.12);
}

.page-products .tag--opt {
  color: var(--sea-700);
  background: rgba(28, 90, 128, 0.09);
}

.page-products .tag--fix {
  color: var(--coral-700);
  background: rgba(255, 107, 61, 0.1);
}

.page-products .tag--adjust {
  color: var(--pn-gold-ink);
  background: rgba(242, 169, 59, 0.18);
}

/* ---------- 深海蓝面板 ---------- */
.page-products .pn-sync {
  padding: 56px 0;
  background-color: var(--sea-900);
  background-image:
    linear-gradient(var(--grid-line-deep) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-deep) 1px, transparent 1px);
  background-size: 36px 36px;
  color: var(--mist);
}

.page-products .pn-sync .section-index {
  color: var(--gold);
}

.page-products .pn-sync .section-title {
  color: var(--pearl);
  margin-bottom: 0;
}

.page-products .pn-sync__grid {
  display: grid;
  gap: 32px;
}

.page-products .pn-sync__list {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
  padding: 0;
}

.page-products .pn-sync__list li {
  padding-left: 16px;
  border-left: 2px solid var(--coral);
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(232, 238, 242, 0.88);
}

.page-products .pn-sync__list .mono {
  display: inline-block;
  margin-right: 8px;
  color: var(--gold);
  font-size: 12.5px;
}

.page-products .pn-sync__note {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(232, 238, 242, 0.75);
}

.page-products .pn-sync__note a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pn-sync__media {
  background: var(--sea-700);
  border-color: var(--line-light);
}

.page-products .pn-sync__media .media-frame__caption {
  color: rgba(232, 238, 242, 0.75);
  border-top-color: var(--line-light);
}

/* ---------- 场景卡片 ---------- */
.page-products .pn-scenes {
  display: grid;
  gap: 16px;
}

.page-products .pn-scene {
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
  padding: 20px 18px;
  background: var(--pearl);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--sea-500);
  transition: border-color 160ms ease;
}

.page-products .pn-scene:hover {
  border-top-color: var(--coral);
}

.page-products .pn-scene .card__head {
  margin: 0;
}

.page-products .pn-scene .card__meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-products .pn-scene .card__title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--sea-900);
}

.page-products .pn-scene .card__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink);
}

/* ---------- 服务保障 ---------- */
.page-products .pn-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .pn-support__note {
  max-width: 46em;
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 动效 ---------- */
.page-products .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 180ms ease-out, transform 180ms ease-out;
}

.page-products .reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-products .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-products * {
    transition: none !important;
    animation: none !important;
  }
}

/* ---------- 窄屏表格堆叠 ---------- */
@media (max-width: 719px) {
  .page-products .pn-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .page-products .pn-table,
  .page-products .pn-table tbody,
  .page-products .pn-table tr,
  .page-products .pn-table th,
  .page-products .pn-table td {
    display: block;
    width: 100%;
  }

  .page-products .pn-table tbody tr {
    border-bottom: 2px solid var(--line-soft);
  }

  .page-products .pn-table tbody tr:last-child {
    border-bottom: 0;
  }

  .page-products .pn-table tbody th {
    padding: 12px 16px;
    background: var(--sea-700);
    color: var(--pearl);
    border-bottom: 0;
  }

  .page-products .pn-table tbody td {
    padding: 10px 16px;
    border-bottom: 1px dashed var(--line-soft);
  }

  .page-products .pn-table tbody td[data-label]::before {
    content: attr(data-label);
    display: inline-block;
    min-width: 6em;
    margin-right: 8px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--slate);
  }
}

/* ---------- 中屏 ---------- */
@media (min-width: 700px) {
  .page-products .pn-overview {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pn-marks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

/* ---------- 宽屏 ---------- */
@media (min-width: 960px) {
  .page-products .pn-hero {
    padding: 28px 0 64px;
  }

  .page-products .pn-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: start;
  }

  .page-products .pn-section {
    padding: 84px 0;
  }

  .page-products .pn-section--tight {
    padding: 16px 0 64px;
  }

  .page-products .pn-rules {
    grid-template-columns: 8fr 4fr;
    gap: 52px;
    align-items: start;
  }

  .page-products .pn-sync {
    padding: 84px 0;
  }

  .page-products .pn-sync__grid {
    grid-template-columns: 5fr 7fr;
    gap: 56px;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-products .pn-ledger-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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