.page-products {
  position: relative;
  background-color: var(--ink-950);
  background-image:
    linear-gradient(rgba(189, 245, 217, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(189, 245, 217, 0.028) 1px, transparent 1px);
  background-size: 64px 64px;
}

/* ---------- 首屏 ---------- */
.page-products .pf-intro {
  position: relative;
  isolation: isolate;
  padding-block: clamp(28px, 5.5vw, 68px) clamp(24px, 4vw, 46px);
}
.page-products .pf-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(65% 72% at 88% 0%, rgba(59, 199, 243, 0.18), transparent 62%),
    radial-gradient(48% 62% at 0% 100%, rgba(216, 255, 62, 0.12), transparent 66%);
}
.page-products .pf-intro__inner {
  max-width: 940px;
}
.page-products .pf-intro h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.07;
  letter-spacing: 0.005em;
  color: var(--paper);
  margin: 14px 0 18px;
  text-wrap: balance;
}
.page-products .pf-intro h1 em {
  font-style: normal;
  color: var(--lime);
}
.page-products .pf-lead {
  max-width: 62ch;
  margin: 0 0 22px;
  font-size: clamp(15.5px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--mint);
}
.page-products .pf-intro__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-products .pf-intro__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  list-style: none;
  margin: 26px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}
.page-products .pf-intro__meta li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ---------- 方案总览 ---------- */
.page-products .pf-overview {
  padding-block: clamp(26px, 4vw, 56px);
}
.page-products .pf-ov-head {
  display: grid;
  gap: 20px;
  margin-bottom: clamp(22px, 3vw, 38px);
}
.page-products .pf-ov-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  color: var(--paper);
  margin: 10px 0 12px;
  text-wrap: balance;
}
.page-products .pf-ov-lead {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text);
  max-width: 56ch;
}
.page-products .pf-ov-figure {
  margin: 0;
  align-self: end;
}
.page-products .pf-split {
  display: grid;
  gap: clamp(18px, 2.6vw, 32px);
}

@media (min-width: 900px) {
  .page-products .pf-ov-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
    align-items: end;
    gap: 36px;
  }
  .page-products .pf-split {
    grid-template-columns: minmax(210px, 262px) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .pf-rail {
    position: sticky;
    top: 24px;
  }
}

/* ---------- 路径索引 ---------- */
.page-products .pf-rail {
  padding: 16px 16px 18px;
  background: var(--ink-900);
  border: 1px solid var(--line);
}
.page-products .pf-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate);
}
.page-products .pf-fork {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 14px;
}
.page-products .pf-fork__line {
  fill: none;
  stroke: rgba(59, 199, 243, 0.5);
  stroke-width: 1.5;
  stroke-linecap: round;
}
.page-products .pf-fork__node {
  fill: var(--ink-950);
  stroke: var(--blue);
  stroke-width: 1.5;
}
.page-products .pf-fork__node--lime {
  fill: var(--lime);
  stroke: var(--lime);
}
.page-products .pf-rail__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-products .pf-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  text-decoration: none;
  font-size: 14px;
  color: var(--text);
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.page-products .pf-rail__link:hover,
.page-products .pf-rail__link:focus-visible {
  background: rgba(216, 255, 62, 0.08);
  border-left-color: var(--lime);
  color: var(--paper);
}
.page-products .pf-rail__idx {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--blue);
}
.page-products .pf-rail__note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 方案面板 ---------- */
.page-products .pf-panel {
  position: relative;
  padding: clamp(18px, 3.2vw, 34px);
  margin-bottom: clamp(16px, 2.4vw, 24px);
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--line);
}
.page-products .pf-panel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 30px;
  height: 30px;
  pointer-events: none;
  background: linear-gradient(to bottom left, var(--ink-950) 0 50%, transparent 50%);
}
.page-products .pf-panel__status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mint);
}
.page-products .pf-panel__status .tag {
  margin-inline-start: auto;
}
.page-products .pf-panel h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.22;
  color: var(--paper);
  text-wrap: balance;
}
.page-products .pf-panel p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--text);
}
.page-products .pf-panel__facts {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 9px;
}
.page-products .pf-panel__facts li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mint);
}
.page-products .pf-panel__facts .mono {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--blue);
}
.page-products .pf-panel__fig {
  margin: 16px 0;
}
.page-products .pf-panel__act {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

/* ---------- 三列信息块 ---------- */
.page-products .pf-trio {
  display: grid;
  gap: 1px;
  margin: 16px 0;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-products .pf-trio__cell {
  background: var(--ink-900);
  padding: 14px 16px;
}
.page-products .pf-trio__label {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
}
.page-products .pf-trio__val {
  font-size: 14px;
  line-height: 1.62;
  color: var(--paper);
}
@media (min-width: 680px) {
  .page-products .pf-trio {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 版本对照 ---------- */
.page-products .pf-version {
  padding-block: clamp(30px, 4.6vw, 62px);
}
.page-products .pf-version__head {
  max-width: 720px;
  margin-bottom: clamp(20px, 3vw, 34px);
}
.page-products .pf-version__head h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  color: var(--paper);
}
.page-products .pf-version__head p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--text);
}
.page-products .pf-version__grid {
  display: grid;
  gap: 14px;
}
.page-products .pf-vcard {
  padding: clamp(16px, 2.4vw, 26px);
  background: var(--ink-900);
  border: 1px solid var(--line-soft);
}
.page-products .pf-vcard--new {
  border-color: var(--line-strong);
  background:
    linear-gradient(155deg, rgba(216, 255, 62, 0.1), transparent 62%),
    var(--ink-800);
}
.page-products .pf-vcard__tag {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}
.page-products .pf-vcard--new .pf-vcard__tag {
  color: var(--lime);
}
.page-products .pf-vcard__ver {
  display: block;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--paper);
  letter-spacing: -0.02em;
}
.page-products .pf-vcard__steps {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}
.page-products .pf-vcard__steps li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
}
.page-products .pf-vstep__n {
  flex: none;
  min-width: 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--blue);
}
.page-products .pf-vcard--new .pf-vstep__n {
  color: var(--lime);
}
.page-products .pf-version__figure {
  margin: clamp(18px, 2.6vw, 30px) 0 0;
}
@media (min-width: 780px) {
  .page-products .pf-version__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

/* ---------- 适用场景 ---------- */
.page-products .pf-scenes {
  padding-block: clamp(28px, 4.4vw, 60px);
}
.page-products .pf-scenes__head {
  max-width: 640px;
  margin-bottom: clamp(18px, 2.6vw, 30px);
}
.page-products .pf-scenes__head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  color: var(--paper);
  text-wrap: balance;
}
.page-products .pf-scenes__wrap {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}
.page-products .pf-scenes__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .pf-scene {
  padding: 16px 18px 16px 20px;
  background: var(--ink-900);
  border-left: 3px solid var(--blue);
}
.page-products .pf-scene:nth-child(2) {
  border-left-color: var(--lime);
}
.page-products .pf-scene:nth-child(3) {
  border-left-color: var(--amber);
}
.page-products .pf-scene:nth-child(4) {
  border-left-color: var(--mint);
}
.page-products .pf-scene__num {
  display: block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--slate);
}
.page-products .pf-scene h3 {
  margin: 6px 0 8px;
  font-family: var(--font-body);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}
.page-products .pf-scene p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}
.page-products .pf-scenes__figure {
  margin: 0;
  align-self: start;
}
@media (min-width: 860px) {
  .page-products .pf-scenes__wrap {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .pf-scenes__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 流程步骤 ---------- */
.page-products .pf-flow {
  padding-block: clamp(28px, 4.4vw, 60px);
}
.page-products .pf-flow__head {
  max-width: 620px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}
.page-products .pf-flow__head h2 {
  margin: 10px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  color: var(--paper);
}
.page-products .pf-flow__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--slate);
}
.page-products .pf-flow__list {
  display: grid;
  gap: 10px;
}
.page-products .pf-step {
  background: var(--ink-900);
  border: 1px solid var(--line-soft);
}
.page-products .pf-step[open] {
  border-color: var(--line-strong);
}
.page-products .pf-step summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.35;
  color: var(--paper);
}
.page-products .pf-step summary::-webkit-details-marker {
  display: none;
}
.page-products .pf-step summary::after {
  content: "+";
  margin-inline-start: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--lime);
}
.page-products .pf-step[open] summary::after {
  content: "−";
}
.page-products .pf-step summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
.page-products .pf-step__n {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
}
.page-products .pf-step__body {
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--text);
}
.page-products .pf-step__body p {
  margin: 0 0 10px;
}
.page-products .pf-step__body p:last-child {
  margin-bottom: 0;
}
.page-products .pf-flow__more {
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--slate);
}
.page-products .pf-flow__more a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 支持与联系 ---------- */
.page-products .pf-help {
  padding-block: clamp(26px, 4vw, 56px);
}
.page-products .pf-help > .pf-help,
.page-products .pf-help .pf-help {
  padding: 0;
}
.page-products div.pf-help {
  display: grid;
  gap: 22px;
  padding: clamp(20px, 3.4vw, 36px);
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(59, 199, 243, 0.12), transparent 58%),
    var(--ink-900);
}
.page-products div.pf-help h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.18;
  color: var(--paper);
}
.page-products .pf-help__text {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--text);
  max-width: 52ch;
}
.page-products .pf-help__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-products .pf-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}
.page-products .pf-contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
}
.page-products .pf-contact .mono {
  color: var(--paper);
  font-size: 13.5px;
  word-break: break-all;
}
.page-products .pf-contact__addr {
  color: var(--slate);
  font-size: 13.5px;
}

@media (min-width: 820px) {
  .page-products div.pf-help {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: start;
    gap: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-rail__link {
    transition: none;
  }
}



.page-products {
  position: relative;
  background-color: var(--ink-950);
  background-image:
    linear-gradient(rgba(189, 245, 217, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(189, 245, 217, 0.028) 1px, transparent 1px);
  background-size: 64px 64px;
}

/* ---------- 首屏 ---------- */
.page-products .pf-intro {
  position: relative;
  isolation: isolate;
  padding-block: clamp(28px, 5.5vw, 68px) clamp(24px, 4vw, 46px);
}
.page-products .pf-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(65% 72% at 88% 0%, rgba(59, 199, 243, 0.18), transparent 62%),
    radial-gradient(48% 62% at 0% 100%, rgba(216, 255, 62, 0.12), transparent 66%);
}
.page-products .pf-intro__inner {
  max-width: 940px;
}
.page-products .pf-intro h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.07;
  letter-spacing: 0.005em;
  color: var(--paper);
  margin: 14px 0 18px;
  text-wrap: balance;
}
.page-products .pf-intro h1 em {
  font-style: normal;
  color: var(--lime);
}
.page-products .pf-lead {
  max-width: 62ch;
  margin: 0 0 22px;
  font-size: clamp(15.5px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--mint);
}
.page-products .pf-intro__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-products .pf-intro__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  list-style: none;
  margin: 26px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}
.page-products .pf-intro__meta li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ---------- 方案总览 ---------- */
.page-products .pf-overview {
  padding-block: clamp(26px, 4vw, 56px);
}
.page-products .pf-ov-head {
  display: grid;
  gap: 20px;
  margin-bottom: clamp(22px, 3vw, 38px);
}
.page-products .pf-ov-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  color: var(--paper);
  margin: 10px 0 12px;
  text-wrap: balance;
}
.page-products .pf-ov-lead {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text);
  max-width: 56ch;
}
.page-products .pf-ov-figure {
  margin: 0;
  align-self: end;
}
.page-products .pf-split {
  display: grid;
  gap: clamp(18px, 2.6vw, 32px);
}

@media (min-width: 900px) {
  .page-products .pf-ov-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
    align-items: end;
    gap: 36px;
  }
  .page-products .pf-split {
    grid-template-columns: minmax(210px, 262px) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .pf-rail {
    position: sticky;
    top: 24px;
  }
}

/* ---------- 路径索引 ---------- */
.page-products .pf-rail {
  padding: 16px 16px 18px;
  background: var(--ink-900);
  border: 1px solid var(--line);
}
.page-products .pf-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate);
}
.page-products .pf-fork {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 14px;
}
.page-products .pf-fork__line {
  fill: none;
  stroke: rgba(59, 199, 243, 0.5);
  stroke-width: 1.5;
  stroke-linecap: round;
}
.page-products .pf-fork__node {
  fill: var(--ink-950);
  stroke: var(--blue);
  stroke-width: 1.5;
}
.page-products .pf-fork__node--lime {
  fill: var(--lime);
  stroke: var(--lime);
}
.page-products .pf-rail__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-products .pf-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  text-decoration: none;
  font-size: 14px;
  color: var(--text);
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.page-products .pf-rail__link:hover,
.page-products .pf-rail__link:focus-visible {
  background: rgba(216, 255, 62, 0.08);
  border-left-color: var(--lime);
  color: var(--paper);
}
.page-products .pf-rail__idx {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--blue);
}
.page-products .pf-rail__note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 方案面板 ---------- */
.page-products .pf-panel {
  position: relative;
  padding: clamp(18px, 3.2vw, 34px);
  margin-bottom: clamp(16px, 2.4vw, 24px);
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--line);
}
.page-products .pf-panel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 30px;
  height: 30px;
  pointer-events: none;
  background: linear-gradient(to bottom left, var(--ink-950) 0 50%, transparent 50%);
}
.page-products .pf-panel__status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mint);
}
.page-products .pf-panel__status .tag {
  margin-inline-start: auto;
}
.page-products .pf-panel h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.22;
  color: var(--paper);
  text-wrap: balance;
}
.page-products .pf-panel p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--text);
}
.page-products .pf-panel__facts {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 9px;
}
.page-products .pf-panel__facts li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mint);
}
.page-products .pf-panel__facts .mono {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--blue);
}
.page-products .pf-panel__fig {
  margin: 16px 0;
}
.page-products .pf-panel__act {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

/* ---------- 三列信息块 ---------- */
.page-products .pf-trio {
  display: grid;
  gap: 1px;
  margin: 16px 0;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-products .pf-trio__cell {
  background: var(--ink-900);
  padding: 14px 16px;
}
.page-products .pf-trio__label {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
}
.page-products .pf-trio__val {
  font-size: 14px;
  line-height: 1.62;
  color: var(--paper);
}
@media (min-width: 680px) {
  .page-products .pf-trio {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 版本对照 ---------- */
.page-products .pf-version {
  padding-block: clamp(30px, 4.6vw, 62px);
}
.page-products .pf-version__head {
  max-width: 720px;
  margin-bottom: clamp(20px, 3vw, 34px);
}
.page-products .pf-version__head h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  color: var(--paper);
}
.page-products .pf-version__head p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--text);
}
.page-products .pf-version__grid {
  display: grid;
  gap: 14px;
}
.page-products .pf-vcard {
  padding: clamp(16px, 2.4vw, 26px);
  background: var(--ink-900);
  border: 1px solid var(--line-soft);
}
.page-products .pf-vcard--new {
  border-color: var(--line-strong);
  background:
    linear-gradient(155deg, rgba(216, 255, 62, 0.1), transparent 62%),
    var(--ink-800);
}
.page-products .pf-vcard__tag {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}
.page-products .pf-vcard--new .pf-vcard__tag {
  color: var(--lime);
}
.page-products .pf-vcard__ver {
  display: block;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--paper);
  letter-spacing: -0.02em;
}
.page-products .pf-vcard__steps {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}
.page-products .pf-vcard__steps li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
}
.page-products .pf-vstep__n {
  flex: none;
  min-width: 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--blue);
}
.page-products .pf-vcard--new .pf-vstep__n {
  color: var(--lime);
}
.page-products .pf-version__figure {
  margin: clamp(18px, 2.6vw, 30px) 0 0;
}
@media (min-width: 780px) {
  .page-products .pf-version__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

/* ---------- 适用场景 ---------- */
.page-products .pf-scenes {
  padding-block: clamp(28px, 4.4vw, 60px);
}
.page-products .pf-scenes__head {
  max-width: 640px;
  margin-bottom: clamp(18px, 2.6vw, 30px);
}
.page-products .pf-scenes__head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  color: var(--paper);
  text-wrap: balance;
}
.page-products .pf-scenes__wrap {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}
.page-products .pf-scenes__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .pf-scene {
  padding: 16px 18px 16px 20px;
  background: var(--ink-900);
  border-left: 3px solid var(--blue);
}
.page-products .pf-scene:nth-child(2) {
  border-left-color: var(--lime);
}
.page-products .pf-scene:nth-child(3) {
  border-left-color: var(--amber);
}
.page-products .pf-scene:nth-child(4) {
  border-left-color: var(--mint);
}
.page-products .pf-scene__num {
  display: block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--slate);
}
.page-products .pf-scene h3 {
  margin: 6px 0 8px;
  font-family: var(--font-body);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}
.page-products .pf-scene p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}
.page-products .pf-scenes__figure {
  margin: 0;
  align-self: start;
}
@media (min-width: 860px) {
  .page-products .pf-scenes__wrap {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .pf-scenes__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 流程步骤 ---------- */
.page-products .pf-flow {
  padding-block: clamp(28px, 4.4vw, 60px);
}
.page-products .pf-flow__head {
  max-width: 620px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}
.page-products .pf-flow__head h2 {
  margin: 10px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  color: var(--paper);
}
.page-products .pf-flow__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--slate);
}
.page-products .pf-flow__list {
  display: grid;
  gap: 10px;
}
.page-products .pf-step {
  background: var(--ink-900);
  border: 1px solid var(--line-soft);
}
.page-products .pf-step[open] {
  border-color: var(--line-strong);
}
.page-products .pf-step summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.35;
  color: var(--paper);
}
.page-products .pf-step summary::-webkit-details-marker {
  display: none;
}
.page-products .pf-step summary::after {
  content: "+";
  margin-inline-start: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--lime);
}
.page-products .pf-step[open] summary::after {
  content: "−";
}
.page-products .pf-step summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
.page-products .pf-step__n {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
}
.page-products .pf-step__body {
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--text);
}
.page-products .pf-step__body p {
  margin: 0 0 10px;
}
.page-products .pf-step__body p:last-child {
  margin-bottom: 0;
}
.page-products .pf-flow__more {
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--slate);
}
.page-products .pf-flow__more a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 支持与联系 ---------- */
.page-products .pf-help {
  padding-block: clamp(26px, 4vw, 56px);
}
.page-products div.pf-help {
  display: grid;
  gap: 22px;
  padding: clamp(20px, 3.4vw, 36px);
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(59, 199, 243, 0.12), transparent 58%),
    var(--ink-900);
}
.page-products div.pf-help h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.18;
  color: var(--paper);
}
.page-products .pf-help__text {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--text);
  max-width: 52ch;
}
.page-products .pf-help__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-products .pf-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}
.page-products .pf-contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
}
.page-products .pf-contact .mono {
  color: var(--paper);
  font-size: 13.5px;
  word-break: break-all;
}
.page-products .pf-contact__addr {
  color: var(--slate);
  font-size: 13.5px;
}

@media (min-width: 820px) {
  .page-products div.pf-help {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: start;
    gap: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-rail__link {
    transition: none;
  }
}