.page-products {
  --pd-side-w: 292px;
  --pd-gap: clamp(22px, 3vw, 42px);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

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

/* ---------- 面包屑 ---------- */
.page-products .pd-crumbs-row {
  padding-top: clamp(16px, 3vw, 30px);
}

.page-products .pd-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-products .pd-crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-products .pd-crumbs a:hover,
.page-products .pd-crumbs a:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.page-products .pd-crumbs__sep {
  color: var(--line);
}

.page-products .pd-crumbs [aria-current="page"] {
  color: var(--paper);
}

/* ---------- 外壳 ---------- */
.page-products .pd-shell {
  display: grid;
  gap: var(--pd-gap);
  align-items: start;
  padding-top: clamp(20px, 3vw, 34px);
}

@media (min-width: 1080px) {
  .page-products .pd-shell {
    grid-template-columns: var(--pd-side-w) minmax(0, 1fr);
  }
}

@media (max-width: 1079px) {
  .page-products .pd-main {
    order: 1;
  }
  .page-products .pd-side {
    order: 2;
  }
}

/* ---------- 左侧状态栏 ---------- */
.page-products .pd-side {
  display: grid;
  gap: 14px;
  min-width: 0;
}

@media (min-width: 1080px) {
  .page-products .pd-side {
    position: sticky;
    top: 24px;
  }
}

.page-products .pd-side__card {
  position: relative;
  overflow: hidden;
  border: var(--edge);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
  padding: 22px 20px 20px;
}

.page-products .pd-side__card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--signal);
}

.page-products .pd-side__kicker {
  margin: 0 0 8px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-products .pd-side__ver {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(46px, 7vw, 62px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--signal);
}

.page-products .pd-side__note {
  margin: 0 0 18px;
  font-size: 13px;
  color: var(--muted);
}

.page-products .pd-side__list {
  list-style: none;
  margin: 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 10px;
}

.page-products .pd-side__list li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--muted);
}

.page-products .pd-dot {
  flex: none;
  width: 8px;
  height: 8px;
  background: var(--line);
}

.page-products .pd-dot--on {
  background: var(--signal);
  box-shadow: 0 0 0 3px rgba(0, 240, 181, 0.16);
}

.page-products .pd-dot--amber {
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 176, 32, 0.14);
}

.page-products .pd-side__actions {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-products .pd-side__mini {
  display: grid;
  gap: 10px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: rgba(20, 34, 74, 0.5);
}

.page-products .pd-side__mini-kicker {
  margin: 0 0 2px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-products .pd-side__mini a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  transition: color 0.18s ease;
}

.page-products .pd-side__mini a::before {
  content: "—";
  color: var(--signal);
  flex: none;
}

.page-products .pd-side__mini a:hover,
.page-products .pd-side__mini a:focus-visible {
  color: var(--signal);
}

/* ---------- 主内容流 ---------- */
.page-products .pd-main {
  display: grid;
  gap: clamp(42px, 6vw, 76px);
  min-width: 0;
}

/* ---------- 首屏文字区 ---------- */
.page-products .pd-intro {
  position: relative;
}

.page-products .pd-intro__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-products .pd-intro__kicker::before {
  content: "";
  display: block;
  width: 34px;
  height: 2px;
  background: var(--signal);
}

.page-products .pd-intro__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5.2vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 16em;
}

.page-products .pd-lede {
  margin: 0 0 26px;
  max-width: 760px;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--muted);
}

.page-products .pd-intro__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  list-style: none;
  margin: 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
}

.page-products .pd-intro__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

.page-products .pd-intro__facts span {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 15px;
  color: var(--amber);
}

/* ---------- 章节公共头 ---------- */
.page-products .pd-block {
  position: relative;
  min-width: 0;
}

.page-products .pd-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 18px;
  align-items: baseline;
  padding-bottom: 18px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.page-products .pd-block__num {
  grid-row: 1 / span 2;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-products .pd-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.16;
  color: var(--paper);
}

.page-products .pd-block__note {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 状态条 ---------- */
.page-products .pd-statusbar {
  margin-bottom: 26px;
  padding: 16px 18px;
  border: var(--edge);
  background: var(--ink-2);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-products .pd-statusbar:hover,
.page-products .pd-statusbar:focus,
.page-products .pd-statusbar:focus-within {
  outline: none;
  border-color: var(--signal);
  box-shadow: var(--shadow-signal);
}

.page-products .pd-statusbar__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  font-family: var(--font-num);
  font-size: 13px;
}

.page-products .pd-statusbar__badge {
  padding: 3px 9px;
  background: var(--signal);
  color: var(--ink);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-products .pd-statusbar__text {
  color: var(--muted);
}

.page-products .pd-statusbar__hint {
  margin-left: auto;
  font-size: 12px;
  color: var(--line);
}

.page-products .pd-statusbar__detail {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.34s ease, opacity 0.24s ease;
}

.page-products .pd-statusbar:hover .pd-statusbar__detail,
.page-products .pd-statusbar:focus .pd-statusbar__detail,
.page-products .pd-statusbar:focus-within .pd-statusbar__detail {
  max-height: 320px;
  opacity: 1;
}

.page-products .pd-statusbar__detail ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 10px;
}

.page-products .pd-statusbar__detail li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .pd-statusbar__detail li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background: var(--amber);
}

/* ---------- 更新点卡片 ---------- */
.page-products .pd-cards {
  display: grid;
  gap: 18px;
  align-items: start;
}

@media (min-width: 700px) {
  .page-products .pd-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pd-card:nth-child(even) {
    margin-top: 28px;
  }
}

.page-products .pd-card {
  position: relative;
  padding: 22px 20px;
  border: var(--edge);
  background: var(--ink-2);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.page-products .pd-card:hover {
  transform: translateY(-4px);
  border-color: var(--signal);
  box-shadow: var(--shadow-signal);
}

.page-products .pd-card--signal {
  border-left: 4px solid var(--signal);
}

.page-products .pd-card__idx {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-products .pd-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.32;
  color: var(--paper);
}

.page-products .pd-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- 图片 ---------- */
.page-products .pd-figure {
  margin: 28px 0 0;
  border: var(--edge);
  background: var(--ink-3);
  overflow: hidden;
}

.page-products .pd-figure--tight {
  margin-top: 0;
}

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

.page-products .pd-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  background: var(--ink-2);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.03em;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 三栏示意 ---------- */
.page-products .pd-schema {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
}

@media (min-width: 720px) {
  .page-products .pd-schema {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .pd-schema__col {
  position: relative;
  display: block;
  padding: 16px 16px 16px 18px;
  border: var(--edge);
  background: var(--ink-2);
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.35;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-products .pd-schema__col::after {
  content: "↓";
  position: absolute;
  right: 14px;
  bottom: 12px;
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--line);
  transition: color 0.2s ease;
}

.page-products .pd-schema__col span {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-products .pd-schema__col:hover,
.page-products .pd-schema__col:focus-visible {
  outline: none;
  border-color: var(--signal);
  background: var(--ink-3);
  color: var(--signal);
}

.page-products .pd-schema__col:hover::after,
.page-products .pd-schema__col:focus-visible::after {
  color: var(--signal);
}

.page-products .pd-colnotes {
  display: grid;
  gap: 16px;
}

@media (min-width: 720px) {
  .page-products .pd-colnotes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .pd-colnote {
  padding-top: 14px;
  border-top: 2px solid var(--line);
  scroll-margin-top: 28px;
  transition: border-color 0.25s ease;
}

.page-products .pd-colnote:target {
  border-top-color: var(--amber);
}

.page-products .pd-colnote h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.35;
  color: var(--paper);
  transition: color 0.25s ease;
}

.page-products .pd-colnote:target h3 {
  color: var(--amber);
}

.page-products .pd-colnote p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--muted);
}

.page-products .pd-rule {
  margin-top: 24px;
  padding: 16px 18px;
  border-left: 4px solid var(--amber);
  background: rgba(255, 176, 32, 0.07);
}

.page-products .pd-rule p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- 步骤条 ---------- */
.page-products .pd-steps {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
}

.page-products .pd-step {
  position: relative;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 6px 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .pd-step::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 72px;
  bottom: 0;
  width: 2px;
  background: var(--line);
}

.page-products .pd-step:last-child::before {
  content: none;
}

.page-products .pd-step__num {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 2px solid var(--line);
  background: var(--ink-2);
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 16px;
  color: var(--signal);
}

.page-products .pd-step:first-child .pd-step__num {
  border-color: var(--signal);
  box-shadow: var(--shadow-signal);
}

.page-products .pd-step__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.35;
  color: var(--paper);
}

.page-products .pd-step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--muted);
}

.page-products .pd-copybar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px dashed var(--line);
  background: var(--ink-2);
}

.page-products .pd-copybar p {
  flex: 1 1 240px;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .pd-copy {
  font-family: var(--font-body);
  cursor: pointer;
}

/* ---------- 图文分栏 ---------- */
.page-products .pd-split {
  display: grid;
  gap: 26px;
  align-items: start;
}

@media (min-width: 880px) {
  .page-products .pd-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 34px;
  }
}

.page-products .pd-split__lead {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.72;
  color: var(--paper);
}

.page-products .pd-checks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-products .pd-checks li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--muted);
}

.page-products .pd-checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background: var(--amber);
}

/* ---------- 会员中心 ---------- */
.page-products .pd-member {
  display: grid;
  margin-top: 28px;
  border: var(--edge);
  background: var(--ink-2);
}

@media (min-width: 700px) {
  .page-products .pd-member {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-products .pd-member__item {
  padding: 20px;
  border-top: 1px solid var(--line);
}

.page-products .pd-member__item:first-child {
  border-top: 0;
}

@media (min-width: 700px) {
  .page-products .pd-member__item:nth-child(2) {
    border-top: 0;
  }
  .page-products .pd-member__item:nth-child(odd) {
    border-right: 1px solid var(--line);
  }
}

.page-products .pd-member__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.35;
  color: var(--paper);
}

.page-products .pd-member__item h3::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 10px;
  background: var(--signal);
  vertical-align: middle;
}

.page-products .pd-member__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- 对照 ---------- */
.page-products .pd-compare-wrap {
  display: grid;
  gap: 24px;
  align-items: start;
}

@media (min-width: 900px) {
  .page-products .pd-compare-wrap {
    grid-template-columns: minmax(0, 1fr) 268px;
    gap: 30px;
  }
}

.page-products .pd-compare {
  border: var(--edge);
  background: var(--ink-2);
  overflow: hidden;
}

.page-products .pd-compare__row {
  border-bottom: 1px solid var(--line);
}

.page-products .pd-compare__row:last-child {
  border-bottom: 0;
}

.page-products .pd-compare__head {
  display: block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

@media (min-width: 760px) {
  .page-products .pd-compare__row {
    display: grid;
    grid-template-columns: 1.05fr 1.35fr 1.1fr;
  }
  .page-products .pd-compare__row > * {
    padding: 16px 18px;
    border-right: 1px solid var(--line);
  }
  .page-products .pd-compare__row > *:last-child {
    border-right: 0;
  }
  .page-products .pd-compare__row--head > * {
    background: var(--ink-3);
  }
  .page-products .pd-compare__key {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16px;
    color: var(--paper);
  }
  .page-products .pd-compare__cell {
    font-size: 14px;
    line-height: 1.7;
    color: var(--muted);
  }
}

@media (max-width: 759px) {
  .page-products .pd-compare__row--head {
    display: none;
  }
  .page-products .pd-compare__row {
    padding: 16px 18px;
  }
  .page-products .pd-compare__row > * {
    display: block;
  }
  .page-products .pd-compare__row > * + * {
    margin-top: 8px;
  }
  .page-products .pd-compare__key {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 17px;
    color: var(--paper);
  }
  .page-products .pd-compare__cell {
    padding-left: 14px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--muted);
    border-left: 2px solid var(--line);
  }
  .page-products .pd-compare__cell::before {
    content: attr(data-label) "：";
    color: var(--amber);
    font-family: var(--font-num);
    font-size: 12px;
  }
}

.page-products .pd-figure--portrait {
  margin-top: 0;
}

@media (max-width: 899px) {
  .page-products .pd-figure--portrait {
    max-width: 300px;
  }
}

/* ---------- 支持 ---------- */
.page-products .pd-support {
  display: grid;
  gap: 18px;
}

@media (min-width: 760px) {
  .page-products .pd-support {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .pd-support__item {
  padding: 18px 18px 20px;
  border: var(--edge);
  background: var(--ink-2);
}

.page-products .pd-support__item h3 {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-products .pd-support__item p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.74;
  color: var(--muted);
}

.page-products .pd-support__item a {
  display: inline-block;
  font-size: 14px;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 240, 181, 0.35);
  padding-bottom: 1px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-products .pd-support__item a:hover,
.page-products .pd-support__item a:focus-visible {
  color: var(--paper);
  border-color: var(--paper);
}

/* ---------- 结尾 ---------- */
.page-products .pd-cta {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 44px);
  border: var(--edge);
  background: linear-gradient(135deg, var(--ink-3), var(--ink-2) 72%);
  box-shadow: var(--shadow-hard);
  display: grid;
  gap: 18px;
}

.page-products .pd-cta::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 190px;
  height: 190px;
  border: 26px solid rgba(0, 240, 181, 0.09);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-products .pd-cta__title {
  position: relative;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.24;
  color: var(--paper);
}

.page-products .pd-cta__text {
  position: relative;
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products .pd-cta__actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-card,
  .page-products .pd-schema__col,
  .page-products .pd-statusbar,
  .page-products .pd-statusbar__detail {
    transition: none;
  }
  .page-products .pd-card:hover {
    transform: none;
  }
}