/* ================= 内容目录页 /product/ ================= */
.page-products {
  font-family: var(--font-sans);
  color: var(--stone);
  overflow-x: hidden;
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-products .shell {
  padding-left: var(--pad-l);
  padding-right: var(--pad-r);
}

/* ---- 通用排版 ---- */
.page-products h2 {
  font-size: clamp(26px, 3.6vw, 44px);
  font-weight: 300;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0 0 16px;
}

.page-products h3 {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-products p {
  line-height: 1.75;
  margin: 0 0 14px;
}

.page-products .pd-sub {
  max-width: 62ch;
  font-size: 17px;
  color: var(--stone);
}

.page-products .eyebrow {
  margin: 0 0 14px;
}

.page-products .cap {
  margin-right: 10px;
}

/* ---- 1. 首屏 ---- */
.page-products .pd-hero {
  position: relative;
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(44px, 6vw, 84px);
  background: var(--cream);
}

.page-products .pd-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    118deg,
    rgba(14, 42, 71, 0.055) 0 1.5px,
    transparent 1.5px 32px
  );
}

.page-products .pd-hero > .shell {
  position: relative;
}

.page-products .pd-hero h1 {
  font-size: clamp(36px, 7.4vw, 92px);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 18px 0 22px;
  max-width: 18ch;
}

.page-products .pd-hero h1 em {
  font-style: normal;
  font-weight: 500;
  color: var(--gold-text);
}

.page-products .pd-hero .lead {
  max-width: 60ch;
  font-size: 17px;
  color: var(--stone);
}

.page-products .pd-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 0;
  margin: 26px 0 0;
}

.page-products .pd-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  list-style: none;
  margin: 34px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid rgba(74, 80, 88, 0.18);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-products .pd-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-products .pd-num {
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-products .pd-hero__fig {
  margin: clamp(30px, 4vw, 54px) 0 0;
}

.page-products .pd-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  object-fit: cover;
}

/* ---- 2. 目录总览 ---- */
.page-products .pd-overview {
  padding: clamp(48px, 7vw, 104px) 0 clamp(20px, 3vw, 40px);
  background: var(--cream);
}

.page-products .pd-tabs .tabs__list {
  display: flex;
  gap: 8px;
  margin: 26px 0 22px;
  padding-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-products .pd-tabs .tab {
  flex: 0 0 auto;
  padding: 9px 18px;
  border: 1px solid rgba(14, 42, 71, 0.22);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--stone);
  font-family: inherit;
  font-size: 13px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 200ms var(--ease), color 200ms var(--ease),
    border-color 200ms var(--ease);
}

.page-products .pd-tabs .tab:hover {
  border-color: var(--gold);
  color: var(--ink);
}

.page-products .pd-tabs .tab[aria-selected="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--gold-hi);
}

.page-products .pd-scroll {
  max-height: 520px;
  overflow: auto;
  border: 1px solid rgba(74, 80, 88, 0.18);
  border-radius: var(--r-lg);
  background: var(--cream);
  -webkit-overflow-scrolling: touch;
}

.page-products .pd-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .pd-table th {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 14px 16px;
  background: var(--ink);
  color: var(--cream);
  text-align: left;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.page-products .pd-table td {
  padding: 14px 16px;
  border-top: 1px solid rgba(74, 80, 88, 0.14);
  vertical-align: top;
  line-height: 1.6;
}

.page-products .pd-table tbody tr:nth-child(even) {
  background: rgba(227, 220, 203, 0.5);
}

.page-products .pd-table tbody tr:target {
  background: rgba(200, 162, 83, 0.2);
  box-shadow: inset 3px 0 0 var(--gold);
}

.page-products .pd-cat {
  font-weight: 500;
  font-size: 16px;
  color: var(--ink);
}

.page-products .pd-no {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-text);
  white-space: nowrap;
}

.page-products .tag {
  font-size: 12px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* ---- 3. 层级图谱 ---- */
.page-products .pd-band {
  padding: clamp(56px, 9vw, 112px) 0;
}

.page-products .pd-map {
  background: var(--sand);
}

.page-products .pd-map__grid {
  display: grid;
  gap: clamp(32px, 5vw, 60px);
}

.page-products .pd-map__side p {
  max-width: 52ch;
}

.page-products .pd-map__fig {
  margin: 28px 0 0;
}

.page-products .pd-map__fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-products .pd-group + .pd-group {
  margin-top: 26px;
  padding-top: 26px;
  border-top: 1px solid rgba(74, 80, 88, 0.18);
}

.page-products .pd-group__name {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--gold-text);
  margin: 0 0 12px;
}

.page-products .pd-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .pd-node {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 18px;
  border: 1px solid rgba(74, 80, 88, 0.16);
  border-radius: var(--r-pill);
  background: var(--cream);
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  transition: transform 240ms var(--ease), border-color 240ms var(--ease),
    background 240ms var(--ease);
}

.page-products .pd-node:hover,
.page-products .pd-node:focus-visible {
  transform: scale(1.04);
  border-color: var(--gold);
  background: #fff;
}

.page-products .pd-node__n {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
  white-space: nowrap;
}

.page-products .pd-map__tip {
  margin: 28px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: 14px;
  color: var(--ink);
}

/* ---- 4. 三步自查 ---- */
.page-products .pd-check {
  padding: clamp(52px, 8vw, 108px) 0;
  background: var(--cream);
}

.page-products .pd-check__inner {
  max-width: 720px;
}

.page-products .pd-steps {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  position: relative;
}

.page-products .pd-steps::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 14px;
  bottom: 26px;
  width: 1.5px;
  background: linear-gradient(var(--gold), rgba(200, 162, 83, 0.12));
}

.page-products .pd-step {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 30px;
}

.page-products .pd-step:last-child {
  padding-bottom: 0;
}

.page-products .pd-step__no {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--r-pill);
  border: 1.5px solid var(--gold);
  background: var(--cream);
  color: var(--gold-text);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-products .pd-step--ok .pd-step__no {
  border-color: var(--tea);
  color: var(--tea);
}

.page-products .pd-step--ink .pd-step__no {
  border-color: var(--ink);
  color: var(--ink);
}

.page-products .pd-step__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.page-products .pd-step__head h3 {
  margin: 0;
}

.page-products .pd-step__body p {
  margin: 0;
  max-width: 58ch;
}

.page-products .pd-check__fig {
  margin: 40px 0 0;
}

.page-products .pd-check__fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-products .pd-check__link {
  margin: 20px 0 0;
  font-size: 15px;
}

.page-products .pd-check__link a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 4px;
}

/* ---- 5. 版本结构变化 ---- */
.page-products .pd-version {
  padding: clamp(48px, 7vw, 104px) 0;
  background: var(--cream);
}

.page-products .pd-version__fig {
  margin: 30px 0 34px;
}

.page-products .pd-version__fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-products .pd-version__grid {
  gap: 18px;
}

.page-products .pd-note {
  padding: 26px 24px;
  border-radius: var(--r-md);
  background: var(--cream);
}

.page-products .pd-note p {
  max-width: 46ch;
}

.page-products .pd-note__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-products .pd-note__acts .cap {
  margin-right: 0;
}

/* ---- 6. 更新节奏与状态标签 ---- */
.page-products .pd-band--ink {
  background: var(--ink-deep);
  color: rgba(244, 241, 234, 0.84);
}

.page-products .pd-band--ink h2 {
  color: var(--cream);
}

.page-products .pd-on-ink {
  color: rgba(244, 241, 234, 0.84);
  max-width: 62ch;
  font-size: 17px;
}

.page-products .pd-rhythm__list {
  list-style: none;
  margin: 38px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .pd-rhythm__item {
  padding: 24px 22px;
  border: 1px solid rgba(244, 241, 234, 0.18);
  border-radius: var(--r-md);
  background: rgba(244, 241, 234, 0.04);
}

.page-products .pd-rhythm__item h3 {
  color: var(--cream);
  margin: 14px 0 8px;
}

.page-products .pd-rhythm__item p {
  margin: 0;
  color: rgba(244, 241, 234, 0.76);
  font-size: 15px;
}

.page-products .pd-rhythm__acts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: 34px;
}

.page-products .pd-rhythm__meta {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(244, 241, 234, 0.6);
}

/* ---- 7. 收藏与快捷路径 ---- */
.page-products .pd-keep {
  padding: clamp(52px, 8vw, 112px) 0 0;
  background: var(--cream);
}

.page-products .pd-keep__fig {
  margin: 30px 0 36px;
}

.page-products .pd-keep__fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-products .pd-keep__grid {
  gap: 16px;
}

.page-products .pd-card {
  display: block;
  padding: 24px 22px 22px;
  border: 1px solid rgba(74, 80, 88, 0.16);
  border-radius: var(--r-md);
  background: var(--cream);
  color: var(--stone);
  text-decoration: none;
  transition: transform 240ms var(--ease), border-color 240ms var(--ease),
    box-shadow 240ms var(--ease);
}

.page-products .pd-card:hover,
.page-products .pd-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: 0 14px 30px rgba(14, 42, 71, 0.08);
}

.page-products .pd-card p {
  margin: 0 0 16px;
  font-size: 15px;
}

.page-products .pd-card__go {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold-text);
}

.page-products .pd-card__go::after {
  content: " →";
}

/* ---- 断点 ---- */
@media (min-width: 760px) {
  .page-products .pd-check__inner {
    padding-left: 0;
  }

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

  .page-products .pd-version__grid {
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .page-products .pd-map__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pd-map__side {
    padding-right: clamp(12px, 2vw, 32px);
  }

  .page-products .pd-hero {
    padding-top: clamp(40px, 5vw, 72px);
  }

  .page-products .pd-hero h1 {
    max-width: 16ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-node,
  .page-products .pd-card,
  .page-products .pd-tabs .tab {
    transition: none;
  }

  .page-products .pd-node:hover,
  .page-products .pd-card:hover {
    transform: none;
  }
}