.page-products {
  --pm-card: #FFFFFF;
  --pm-gap: clamp(14px, 2.2vw, 22px);
  --pm-pad: clamp(16px, 2.4vw, 24px);
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-products [hidden] {
  display: none !important;
}

/* ---------- 首屏 ---------- */
.page-products .pm-hero {
  position: relative;
  isolation: isolate;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(22px, 4vw, 36px) 0 clamp(38px, 6vw, 70px);
}

.page-products .pm-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--copper) 0%,
    var(--copper) 16%,
    var(--signal) 16%,
    var(--signal) 24%,
    rgba(244, 241, 234, 0.16) 24%,
    rgba(244, 241, 234, 0.16) 100%
  );
}

.page-products .pm-hero .breadcrumb {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(244, 241, 234, 0.55);
}

.page-products .pm-hero .breadcrumb ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pm-hero .breadcrumb li + li::before {
  content: "/";
  margin: 0 8px;
  color: rgba(244, 241, 234, 0.32);
}

.page-products .pm-hero .breadcrumb a {
  color: rgba(244, 241, 234, 0.78);
  text-decoration: none;
}

.page-products .pm-hero .breadcrumb a:hover {
  color: var(--paper);
}

.page-products .pm-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-products .pm-hero__lead h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 5.4vw, 62px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  color: var(--paper);
  max-width: 18ch;
}

.page-products .pm-hero__text {
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.82);
  max-width: 50ch;
  margin: 18px 0 0;
}

.page-products .pm-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .pm-hero .btn--quiet {
  border-color: rgba(244, 241, 234, 0.32);
  color: var(--paper);
}

.page-products .pm-hero .btn--quiet:hover {
  border-color: var(--copper);
  color: var(--copper);
}

.page-products .pm-hero__panel {
  border: 1px solid var(--line-light);
  background: var(--ink-2);
  padding: var(--pm-pad);
  box-shadow: var(--shadow-panel);
}

.page-products .pm-hero__panel-label {
  color: rgba(244, 241, 234, 0.5);
  margin: 0;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.page-products .pm-hero__facts {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 10px;
}

.page-products .pm-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-left: 1px solid var(--line-copper);
  padding-left: 10px;
}

.page-products .pm-hero__num {
  font-family: var(--mono);
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1;
  color: var(--copper);
}

.page-products .pm-hero__cap {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: rgba(244, 241, 234, 0.62);
}

.page-products .pm-hero__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-light);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 241, 234, 0.6);
}

/* ---------- 通用章节 ---------- */
.page-products .pm-section {
  padding: clamp(42px, 6.5vw, 82px) 0;
  border-top: 1px solid var(--line-dark-soft);
}

.page-products .pm-hero + .pm-section {
  border-top: 0;
}

.page-products .pm-section--version {
  background: linear-gradient(180deg, var(--stone) 0%, rgba(230, 225, 214, 0.35) 62%, var(--paper) 100%);
}

.page-products .section-head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-products .section-num {
  font-family: var(--mono);
  font-size: clamp(24px, 3.6vw, 42px);
  line-height: 1;
  color: var(--copper);
}

.page-products .section-head__body h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}

.page-products .pm-lede {
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--text);
  max-width: 56ch;
  margin: 12px 0 0;
}

/* ---------- 图片 ---------- */
.page-products .fig {
  margin: 0;
}

.page-products .fig__frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--stone);
  border: 1px solid var(--line-dark-soft);
  border-radius: var(--r);
}

.page-products .fig__frame--wide {
  aspect-ratio: 21 / 9;
}

.page-products .fig__frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-products .fig__cap {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--graphite);
  margin-top: 8px;
}

.page-products .pm-overview-media {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pm-gap);
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

/* ---------- 筛选 ---------- */
.page-products .pm-filter-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0 0;
  border-top: 1px solid var(--line-copper);
}

.page-products .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-products .filter-chip {
  position: relative;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  padding: 8px 13px;
  border: 1px solid var(--line-dark);
  border-radius: 2px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.page-products .filter-chip:hover {
  border-color: var(--graphite);
}

.page-products .filter-chip[aria-pressed="true"] {
  border-color: var(--signal);
  background: rgba(228, 99, 43, 0.08);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px rgba(228, 99, 43, 0.3);
}

.page-products .filter-chip[aria-pressed="true"]::before {
  content: "";
  position: absolute;
  top: -4px;
  left: -4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
}

.page-products .filter-count {
  color: var(--graphite);
  margin: 0;
}

/* ---------- 栏目标题卡 ---------- */
.page-products .pm-cards {
  list-style: none;
  margin: clamp(18px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pm-gap);
}

.page-products .pm-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--pm-card);
  border: 1px solid var(--line-dark-soft);
  border-left: 2px solid var(--line-copper);
  border-radius: var(--r);
  padding: 15px 17px 17px;
  box-shadow: var(--shadow-panel);
  min-height: 130px;
}

.page-products .pm-card__id {
  color: var(--graphite);
  margin: 0;
  letter-spacing: 0.08em;
}

.page-products .pm-card__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  margin: 0;
  color: var(--ink);
}

.page-products .pm-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--graphite);
}

/* ---------- 组别正文 ---------- */
.page-products .pm-group {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.5vw, 44px);
  align-items: start;
}

.page-products .pm-group__body p {
  font-size: 15.5px;
  line-height: 1.85;
  margin: 0 0 12px;
  max-width: 44ch;
}

.page-products .pm-points {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-dark-soft);
}

.page-products .pm-points li {
  display: grid;
  grid-template-columns: minmax(0, 84px) minmax(0, 1fr);
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-dark-soft);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-products .pm-points__k {
  color: var(--copper);
  letter-spacing: 0.04em;
}

.page-products .pm-fold {
  margin: 18px 0 0;
  border: 1px solid var(--line-dark-soft);
  border-left: 2px solid var(--fog);
  background: var(--stone);
  padding: 12px 16px;
  border-radius: var(--r);
}

.page-products .pm-fold summary {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.page-products .pm-fold summary::-webkit-details-marker {
  display: none;
}

.page-products .pm-fold summary::before {
  content: "＋";
  font-family: var(--mono);
  color: var(--signal);
  margin-right: 8px;
}

.page-products .pm-fold[open] summary::before {
  content: "－";
}

.page-products .pm-fold ul {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-products .pm-fold li {
  position: relative;
  padding: 8px 0 8px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
  border-top: 1px solid var(--line-dark-soft);
}

.page-products .pm-fold li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--copper);
}

.page-products .pm-fold--wide {
  margin-top: clamp(22px, 3vw, 34px);
  background: rgba(230, 225, 214, 0.55);
}

.page-products .pm-inline-link {
  margin: 18px 0 0 !important;
}

.page-products .pm-textlink {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14px;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(228, 99, 43, 0.45);
  padding-bottom: 2px;
}

.page-products .pm-textlink:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ---------- 版本对照 ---------- */
.page-products .pm-verstrip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: clamp(18px, 2.5vw, 26px);
}

.page-products .pm-verstrip__note {
  color: var(--graphite);
}

.page-products .pm-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  position: relative;
}

.page-products .pm-vcard {
  background: var(--pm-card);
  border: 1px solid var(--line-dark-soft);
  border-radius: var(--r);
  padding: var(--pm-pad);
  box-shadow: var(--shadow-panel);
}

.page-products .pm-vcard--old {
  border-top: 2px solid var(--fog);
}

.page-products .pm-vcard--new {
  border-top: 2px solid var(--moss);
}

.page-products .pm-vcard__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-dark-soft);
}

.page-products .pm-vcard__ver {
  margin: 0;
  color: var(--graphite);
  letter-spacing: 0.06em;
}

.page-products .pm-vlist {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-products .pm-vlist li {
  position: relative;
  padding: 9px 0 9px 16px;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-products .pm-vlist li + li {
  border-top: 1px solid var(--line-dark-soft);
}

.page-products .pm-vcard--old .pm-vlist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--fog);
  border-radius: 50%;
}

.page-products .pm-vcard--new .pm-vlist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 6px;
  height: 6px;
  background: var(--moss);
  border-radius: 50%;
}

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

.page-products .pm-diffblock {
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--line-copper);
}

.page-products .pm-diffblock__head h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 24px);
  margin: 0;
  color: var(--ink);
}

.page-products .pm-diffblock__sub {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--graphite);
  max-width: 52ch;
  margin: 8px 0 16px;
}

.page-products .pm-diff {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-products .pm-diff__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  background: rgba(244, 241, 234, 0.72);
  border: 1px solid var(--line-dark-soft);
  border-left: 2px solid var(--copper);
  border-radius: var(--r);
  padding: 12px 15px;
}

.page-products .pm-diff__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
}

.page-products .pm-diff__pair {
  color: var(--copper);
  letter-spacing: 0.06em;
}

.page-products .pm-vermap {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .pm-vermap__cap {
  color: var(--graphite);
  margin: 6px 0 0;
}

/* ---------- 案例 ---------- */
.page-products .pm-group--rev {
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

.page-products .pm-cases {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pm-gap);
}

.page-products .pm-case {
  background: var(--stone);
  border: 1px solid var(--line-dark-soft);
  border-top: 3px solid var(--clay);
  border-radius: var(--r);
  padding: 14px 16px 16px;
}

.page-products .pm-case__idx {
  margin: 0;
  color: rgba(176, 113, 79, 0.95);
  letter-spacing: 0.1em;
}

.page-products .pm-case h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16.5px;
  margin: 4px 0 6px;
  color: var(--ink);
}

.page-products .pm-case p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- 常见问题 ---------- */
.page-products .pm-faq {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pm-gap);
}

.page-products .pm-faq__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--pm-card);
  border: 1px solid var(--line-dark-soft);
  border-radius: var(--r);
  padding: var(--pm-pad);
  box-shadow: var(--shadow-panel);
}

.page-products .pm-faq__k {
  margin: 0;
  color: var(--moss);
  letter-spacing: 0.08em;
}

.page-products .pm-faq__item h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  margin: 0;
  color: var(--ink);
}

.page-products .pm-faq__item p:not(.pm-faq__k) {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-products .pm-faq__item .pm-textlink {
  margin-top: 4px;
}

/* ---------- 路径建议 ---------- */
.page-products .pm-section--path {
  background: var(--ink);
  color: var(--paper);
  border-top: 0;
}

.page-products .pm-section--path .section-num {
  color: var(--copper);
}

.page-products .pm-section--path .section-head__body h2 {
  color: var(--paper);
}

.page-products .pm-section--path .pm-lede {
  color: rgba(244, 241, 234, 0.78);
}

.page-products .pm-paths {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pm-gap);
  counter-reset: none;
}

.page-products .pm-path {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px solid var(--line-light);
  background: var(--ink-2);
  border-radius: var(--r);
  padding: var(--pm-pad);
}

.page-products .pm-path__idx {
  margin: 0;
  color: var(--copper);
  letter-spacing: 0.1em;
}

.page-products .pm-path h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17.5px;
  line-height: 1.45;
  margin: 0;
  color: var(--paper);
}

.page-products .pm-path p:not(.pm-path__idx) {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(244, 241, 234, 0.75);
}

.page-products .pm-path .btn {
  margin-top: auto;
  align-self: flex-start;
}

.page-products .pm-path .btn--ghost {
  border-color: rgba(244, 241, 234, 0.32);
  color: var(--paper);
}

.page-products .pm-path__foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.72);
}

.page-products .pm-path__foot .pm-textlink {
  margin: 0 4px;
  color: var(--copper);
  border-bottom-color: rgba(192, 138, 62, 0.5);
}

.page-products .pm-path__foot .pm-textlink:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .pm-overview-media {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

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

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

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

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

  .page-products .pm-diff__item {
    grid-template-columns: minmax(0, 96px) minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 900px) {
  .page-products .pm-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: end;
  }

  .page-products .pm-group {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-products .pm-group--rev {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }

  .page-products .pm-compare {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0;
  }

  .page-products .pm-compare::before {
    content: "";
    position: absolute;
    top: 10px;
    bottom: 10px;
    left: 50%;
    width: 1px;
    background: var(--line-copper);
    transform: translateX(-0.5px);
  }

  .page-products .pm-vcard--old {
    border-right: 0;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
  }

  .page-products .pm-vcard--new {
    border-left: 0;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
  }

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

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

@media (min-width: 1000px) {
  .page-products .pm-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    row-gap: clamp(24px, 2.6vw, 34px);
  }

  .page-products .pm-card:nth-child(3n + 2) {
    transform: translateY(16px);
  }

  .page-products .pm-card:nth-child(3n + 3) {
    transform: translateY(6px);
  }

  .page-products .pm-cases {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    row-gap: clamp(24px, 2.6vw, 34px);
  }

  .page-products .pm-case:nth-child(3n + 1) {
    transform: translateY(10px);
  }

  .page-products .pm-case:nth-child(3n + 3) {
    transform: translateY(22px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pm-card,
  .page-products .pm-case {
    transform: none !important;
  }

  .page-products .filter-chip {
    transition: none;
  }
}