.page-products {
  --pf-dark-text: rgba(243, 233, 210, .8);
  --pf-light-text: rgba(16, 20, 28, .72);
}

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

.page-products h2 {
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -.02em;
  font-weight: 800;
  margin: 10px 0 0;
}

.page-products h3 {
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.4;
  letter-spacing: -.01em;
  font-weight: 700;
  margin: 8px 0 0;
}

.page-products .pf-overview__lede,
.page-products .pf-member__lede,
.page-products .pf-search__lede,
.page-products .pf-mobile__lede,
.page-products .pf-tools__lede,
.page-products .pf-version__lede {
  margin-top: 14px;
  font-size: clamp(15px, 1.7vw, 16.5px);
  line-height: 1.85;
  max-width: 46em;
}

.page-products .pf-overview__lede a {
  color: var(--celadon-ink);
  font-weight: 600;
  text-underline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-products .pf-hero {
  position: relative;
  overflow: hidden;
  color: var(--paper);
  padding-block: clamp(112px, 16vw, 176px) clamp(48px, 8vw, 92px);
  background:
    radial-gradient(72% 62% at 88% 6%, rgba(95, 183, 163, .2), transparent 62%),
    radial-gradient(62% 56% at 4% 98%, rgba(242, 181, 68, .12), transparent 60%),
    var(--ink-900);
}

.page-products .pf-hero__inner {
  display: grid;
  gap: clamp(32px, 6vw, 64px);
  align-items: center;
}

.page-products .pf-hero h1 {
  font-size: clamp(32px, 6.6vw, 64px);
  line-height: 1.08;
  letter-spacing: -.026em;
  font-weight: 800;
  margin: 16px 0 0;
}

.page-products .pf-hero__lede {
  margin-top: clamp(16px, 2.6vw, 24px);
  font-size: clamp(16px, 1.9vw, 18.5px);
  line-height: 1.8;
  color: var(--pf-dark-text);
  max-width: 40em;
}

.page-products .pf-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .pf-hero .btn--ghost {
  color: var(--paper);
  border-color: var(--line-dark-strong);
}

.page-products .pf-hero__meta {
  list-style: none;
  margin: clamp(26px, 4vw, 36px) 0 0;
  padding: clamp(16px, 2.4vw, 20px) 0 0;
  border-top: 1px solid var(--line-dark);
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
}

.page-products .pf-hero__meta li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(168, 199, 216, .92);
}

.page-products .pf-hero__meta .mono {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--amber);
}

/* 纯 CSS 四栏信息板 */
.page-products .pf-hero__visual {
  min-width: 0;
}

.page-products .pf-board {
  position: relative;
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--r-xl);
  padding: clamp(16px, 3vw, 22px);
  background: linear-gradient(155deg, rgba(30, 58, 110, .92), rgba(11, 27, 58, .96));
  box-shadow: 0 34px 80px -46px rgba(0, 0, 0, .95);
}

.page-products .pf-board__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-dark);
}

.page-products .pf-board__title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  color: rgba(243, 233, 210, .92);
}

.page-products .pf-board__ver {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-products .pf-board__col {
  margin-top: 10px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-md);
  padding: 11px 13px 13px;
  background: rgba(168, 199, 216, .045);
  transition: border-color .22s var(--ease), background .22s var(--ease);
}

.page-products .pf-board__col--active {
  border-color: rgba(95, 183, 163, .75);
  background: linear-gradient(120deg, rgba(95, 183, 163, .2), rgba(95, 183, 163, .05));
}

.page-products .pf-board__name {
  display: block;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-products .pf-board__col--active .pf-board__name {
  color: var(--celadon);
}

.page-products .pf-board__bar {
  display: block;
  height: 5px;
  margin-top: 9px;
  border-radius: var(--r-pill);
  width: 70%;
  background: linear-gradient(90deg, rgba(95, 183, 163, .85), rgba(95, 183, 163, .12));
}

.page-products .pf-board__col:nth-of-type(2) .pf-board__bar { width: 64%; }
.page-products .pf-board__col:nth-of-type(3) .pf-board__bar { width: 88%; }
.page-products .pf-board__col:nth-of-type(4) .pf-board__bar { width: 76%; }
.page-products .pf-board__col:nth-of-type(5) .pf-board__bar { width: 52%; }

/* ---------- 适用对象 ---------- */
.page-products .pf-overview {
  color: var(--ink-black);
  background:
    repeating-linear-gradient(90deg, rgba(16, 20, 28, .035) 0 1px, transparent 1px 96px),
    var(--parchment);
}

.page-products .pf-overview .eyebrow,
.page-products .pf-search .eyebrow,
.page-products .pf-tools .eyebrow,
.page-products .pf-version .eyebrow {
  color: var(--celadon-ink);
}

.page-products .pf-overview__lede {
  color: var(--pf-light-text);
}

.page-products .pf-overview__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-products .pf-audience {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(12px, 2vw, 18px);
}

.page-products .pf-audience li {
  background: var(--paper);
  border: 1px solid var(--line-light-soft);
  border-radius: var(--r-lg);
  padding: clamp(16px, 2.4vw, 24px);
}

.page-products .pf-audience__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--amber-ink);
  padding-bottom: 6px;
  border-bottom: 2px solid var(--amber);
}

.page-products .pf-audience h3 {
  color: var(--ink-900);
}

.page-products .pf-audience p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--pf-light-text);
}

/* ---------- 会员中心四栏 ---------- */
.page-products .pf-member {
  color: var(--paper);
  background:
    radial-gradient(80% 60% at 8% 0%, rgba(95, 183, 163, .15), transparent 62%),
    var(--ink-900);
}

.page-products .pf-member__head {
  max-width: 52em;
}

.page-products .pf-member__lede {
  color: var(--pf-dark-text);
}

.page-products .pf-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(24px, 3.4vw, 34px) 0 clamp(22px, 3vw, 30px);
}

.page-products .pf-jump a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-dark-strong);
  background: rgba(168, 199, 216, .05);
  color: rgba(243, 233, 210, .88);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
}

.page-products .pf-jump a::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--celadon);
}

.page-products .pf-jump a:nth-child(2)::before {
  background: var(--celadon);
  box-shadow: 0 0 0 4px rgba(95, 183, 163, .18);
}

.page-products .pf-jump a:hover,
.page-products .pf-jump a:focus-visible {
  border-color: var(--celadon);
  background: rgba(95, 183, 163, .16);
  color: var(--paper);
}

.page-products .pf-panels {
  display: grid;
  gap: var(--gap);
}

.page-products .pf-panel {
  border: 1px solid var(--line-dark);
  border-radius: var(--r-lg);
  padding: clamp(18px, 2.6vw, 26px);
  background: linear-gradient(160deg, rgba(30, 58, 110, .55), rgba(11, 27, 58, .55));
  scroll-margin-top: 110px;
}

.page-products .pf-panel--focus {
  border-color: rgba(95, 183, 163, .6);
  background: linear-gradient(160deg, rgba(95, 183, 163, .17), rgba(18, 42, 92, .62));
  box-shadow: inset 0 0 0 1px rgba(95, 183, 163, .2);
}

.page-products .pf-panel__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
  margin: 0;
}

.page-products .pf-panel h3 {
  color: var(--paper);
}

.page-products .pf-panel--focus h3 {
  color: var(--celadon);
}

.page-products .pf-panel p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--pf-dark-text);
}

.page-products .pf-panel__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .pf-panel__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(243, 233, 210, .72);
}

.page-products .pf-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 8px;
  height: 1px;
  background: var(--celadon);
}

.page-products .pf-member__figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
}

/* ---------- 三步查询 ---------- */
.page-products .pf-search {
  color: var(--ink-black);
  background: var(--paper);
}

.page-products .pf-search__lede {
  color: var(--pf-light-text);
}

.page-products .pf-search__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-products .pf-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
}

.page-products .pf-steps li {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: clamp(20px, 3vw, 26px);
}

.page-products .pf-steps li::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 48px;
  bottom: 8px;
  width: 2px;
  border-radius: var(--r-pill);
  background: linear-gradient(180deg, rgba(242, 181, 68, .55), rgba(95, 183, 163, .4));
}

.page-products .pf-steps li:last-child {
  padding-bottom: 0;
}

.page-products .pf-steps li:last-child::before {
  display: none;
}

.page-products .pf-steps__num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--ink-900);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  position: relative;
  z-index: 1;
}

.page-products .pf-steps h3 {
  margin-top: 6px;
  color: var(--ink-900);
}

.page-products .pf-steps p {
  margin: 7px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--pf-light-text);
}

.page-products .pf-copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: clamp(20px, 3vw, 26px);
  padding: 14px 16px;
  border: 1px solid var(--line-light);
  border-radius: var(--r-md);
  background: rgba(231, 214, 180, .4);
}

.page-products .pf-copy-row__label {
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(16, 20, 28, .55);
}

.page-products .pf-copy-row code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-900);
  background: rgba(255, 255, 255, .6);
  padding: 6px 11px;
  border-radius: var(--r-pill);
}

.page-products .copy-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: inherit;
  font-size: 12.5px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(16, 20, 28, .22);
  background: transparent;
  color: var(--ink-900);
  cursor: pointer;
  transition: background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-products .copy-chip:hover,
.page-products .copy-chip:focus-visible {
  border-color: var(--celadon-ink);
  background: rgba(95, 183, 163, .16);
}

.page-products .copy-chip[data-copied="true"] {
  border-color: var(--celadon-ink);
  color: var(--celadon-ink);
}

.page-products .copy-chip__hint {
  font-size: 12px;
  font-weight: 500;
  color: var(--celadon-ink);
}

.page-products .pf-search__figure {
  margin: 0;
}

/* ---------- 移动端面板 ---------- */
.page-products .pf-mobile {
  color: var(--paper);
  background:
    radial-gradient(70% 70% at 88% 18%, rgba(95, 183, 163, .18), transparent 62%),
    var(--ink-800);
}

.page-products .pf-mobile__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-products .pf-mobile__figure {
  margin: 0 auto;
  max-width: 320px;
  width: 100%;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line-dark-strong);
  box-shadow: 0 30px 64px -42px rgba(0, 0, 0, .95);
}

.page-products .pf-mobile__lede {
  color: var(--pf-dark-text);
}

.page-products .pf-route {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-products .pf-route li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-dark-strong);
  background: rgba(168, 199, 216, .07);
  font-size: 14px;
  color: var(--paper);
}

.page-products .pf-route li:not(:last-child)::after {
  content: "→";
  margin-left: 4px;
  color: var(--celadon);
  font-size: 14px;
}

.page-products .pf-route .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-products .pf-mobile__points {
  list-style: none;
  margin: clamp(20px, 3vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pf-mobile__points li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--pf-dark-text);
}

.page-products .pf-mobile__points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .68em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--celadon);
}

/* ---------- 服务工具 ---------- */
.page-products .pf-tools {
  color: var(--ink-black);
  background: var(--paper);
}

.page-products .pf-tools__head {
  max-width: 52em;
}

.page-products .pf-tools__lede {
  color: var(--pf-light-text);
}

.page-products .pf-tools__figure {
  margin: clamp(24px, 3.4vw, 36px) 0 clamp(24px, 3.4vw, 32px);
}

.page-products .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-products .filter-btn {
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-light);
  background: rgba(255, 255, 255, .6);
  color: var(--ink-900);
  cursor: pointer;
  transition: background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-products .filter-btn:hover,
.page-products .filter-btn:focus-visible {
  border-color: var(--celadon-ink);
  background: rgba(95, 183, 163, .16);
}

.page-products .filter-btn[aria-pressed="true"] {
  background: var(--ink-900);
  border-color: var(--ink-900);
  color: var(--paper);
}

.page-products .pf-tool-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pf-tool {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--line-light-soft);
  border-radius: var(--r-lg);
  padding: clamp(16px, 2.4vw, 22px);
  background: rgba(255, 255, 255, .68);
}

.page-products .pf-tool .tag {
  align-self: flex-start;
  font-size: 11px;
  letter-spacing: .08em;
}

.page-products .pf-tool h3 {
  margin-top: 2px;
  color: var(--ink-900);
  font-size: clamp(16px, 1.9vw, 18px);
}

.page-products .pf-tool p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--pf-light-text);
}

.page-products [data-filter-item].is-hidden,
.page-products [data-filter-item][hidden] {
  display: none;
}

/* ---------- 版本演进 ---------- */
.page-products .pf-version {
  color: var(--ink-black);
  background: var(--parchment);
}

.page-products .pf-version__head {
  max-width: 52em;
}

.page-products .pf-version__lede {
  color: var(--pf-light-text);
}

.page-products .pf-version__figure {
  margin: clamp(24px, 3.4vw, 36px) 0;
}

.page-products .pf-version__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.page-products .pf-version__stamp {
  display: grid;
  gap: 12px;
  justify-items: start;
  border: 1px solid rgba(16, 20, 28, .18);
  border-radius: var(--r-lg);
  padding: clamp(18px, 2.6vw, 24px);
  background: rgba(243, 233, 210, .78);
}

.page-products .pf-version__num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.6vw, 44px);
  font-weight: 600;
  letter-spacing: .02em;
  line-height: 1;
  color: var(--ink-900);
  padding-bottom: 10px;
  border-bottom: 3px solid var(--amber);
}

.page-products .pf-version__stamp p {
  margin: 0;
  font-size: 13px;
  letter-spacing: .1em;
  color: rgba(16, 20, 28, .6);
}

.page-products .pf-version__details {
  display: grid;
  gap: 12px;
}

.page-products .pf-version__details details {
  border: 1px solid rgba(16, 20, 28, .16);
  border-radius: var(--r-md);
  background: rgba(243, 233, 210, .62);
  padding: 14px 16px;
}

.page-products .pf-version__details summary {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-900);
  list-style: none;
}

.page-products .pf-version__details summary::-webkit-details-marker {
  display: none;
}

.page-products .pf-version__details summary::after {
  content: "＋";
  color: var(--celadon-ink);
  font-weight: 700;
  font-size: 15px;
}

.page-products .pf-version__details details[open] summary::after {
  content: "－";
}

.page-products .pf-version__details details p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--pf-light-text);
}

.page-products .pf-version__more {
  margin: clamp(22px, 3vw, 30px) 0 0;
}

/* ---------- 收尾 ---------- */
.page-products .pf-cta {
  color: var(--paper);
  background:
    radial-gradient(80% 80% at 86% 18%, rgba(242, 181, 68, .18), transparent 62%),
    var(--ink-900);
}

.page-products .pf-cta__inner {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: center;
}

.page-products .pf-cta h2 {
  color: var(--paper);
}

.page-products .pf-cta p {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.7vw, 16.5px);
  line-height: 1.85;
  color: var(--pf-dark-text);
  max-width: 42em;
}

.page-products .pf-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .pf-cta .btn--ghost {
  color: var(--paper);
  border-color: var(--line-dark-strong);
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-products .pf-panels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-products .pf-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }

  .page-products .pf-overview__grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
    align-items: start;
  }

  .page-products .pf-version__grid {
    grid-template-columns: minmax(0, .34fr) minmax(0, .66fr);
  }
}

@media (min-width: 960px) {
  .page-products .pf-search__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-products .pf-mobile__grid {
    grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr);
  }
}

@media (min-width: 1040px) {
  .page-products .pf-tool-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pf-cta__inner {
    grid-template-columns: minmax(0, 1.3fr) auto;
  }

  .page-products .pf-cta__actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-board__col,
  .page-products .pf-jump a,
  .page-products .filter-btn,
  .page-products .copy-chip {
    transition: none;
  }
}
<<<END>>>