.page-products {
  --fn-shadow-soft: 8px 8px 0 rgba(7, 26, 43, .16);
  --fn-shadow-hard: 8px 8px 0 rgba(7, 26, 43, .92);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: .07em;
  line-height: 1.18;
  margin: 0;
}

.page-products p,
.page-products ul,
.page-products ol,
.page-products figure {
  margin: 0;
}

.page-products ul,
.page-products ol {
  padding-left: 0;
  list-style: none;
}

.page-products .fn-crumb-wrap {
  padding-block: 14px;
}

/* ---------- 首屏 ---------- */
.page-products .fn-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding-block: clamp(34px, 6vw, 76px) clamp(44px, 8vw, 92px);
}

.page-products .fn-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -12%;
  width: min(72%, 640px);
  height: 128%;
  background: linear-gradient(152deg, rgba(35, 230, 176, .22), rgba(35, 230, 176, 0) 64%);
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-products .fn-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--mint), var(--teal) 42%, transparent 88%);
}

.page-products .fn-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--gap);
}

.page-products .fn-hero-copy .eyebrow {
  color: var(--mint);
  margin-bottom: 14px;
}

.page-products .fn-hero h1 {
  color: var(--paper);
  font-size: clamp(28px, 6.4vw, 54px);
  max-width: 18em;
}

.page-products .fn-lede {
  margin-top: 18px;
  max-width: 40em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: rgba(244, 241, 232, .86);
}

.page-products .fn-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .fn-hero-aside {
  border: 1px solid rgba(138, 153, 168, .5);
  background: rgba(11, 34, 51, .9);
  padding: 20px;
  box-shadow: 6px 6px 0 rgba(35, 230, 176, .2);
}

.page-products .fn-aside-label {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mint);
  margin-bottom: 14px;
}

.page-products .fn-status-list {
  display: grid;
  gap: 10px;
}

.page-products .fn-status-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(138, 153, 168, .28);
  font-size: 14px;
  line-height: 1.5;
}

.page-products .fn-status-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

/* ---------- 通用区块 ---------- */
.page-products .fn-section {
  padding-block: clamp(40px, 7vw, 92px);
}

.page-products .fn-section--tint {
  background: var(--paper-2);
}

.page-products .fn-section--ink {
  background: var(--ink);
  color: var(--paper);
}

.page-products .fn-sec-head {
  display: grid;
  gap: 12px;
  max-width: 64ch;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-products .fn-sec-head .eyebrow {
  color: var(--teal);
}

.page-products .fn-section--ink .fn-sec-head .eyebrow {
  color: var(--mint);
}

.page-products .fn-sec-head h2 {
  font-size: clamp(23px, 4.4vw, 40px);
}

.page-products .fn-sec-sub {
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.8;
  color: var(--slate);
}

.page-products .fn-section--ink .fn-sec-sub {
  color: rgba(244, 241, 232, .82);
}

/* ---------- 四类高频动作 ---------- */
.page-products .fn-quad {
  display: grid;
  gap: var(--gap);
}

.page-products .fn-quad-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--fn-shadow-soft);
}

.page-products .fn-quad-code {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--teal);
}

.page-products .fn-quad-card h3 {
  font-size: clamp(17px, 2vw, 20px);
}

.page-products .fn-quad-card p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

.page-products .fn-quad-link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  align-self: flex-start;
  padding-bottom: 2px;
}

.page-products .fn-quad-link:hover,
.page-products .fn-quad-link:focus-visible {
  color: var(--ink);
}

.page-products .fn-figure {
  margin-top: clamp(24px, 4vw, 40px);
}

.page-products .fn-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 2px solid var(--ink);
  background: var(--slate);
  object-fit: cover;
}

.page-products .fn-figure .media-caption {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .fn-section--ink .fn-figure img {
  border-color: var(--slate);
}

.page-products .fn-section--ink .fn-figure .media-caption {
  color: rgba(244, 241, 232, .72);
}

/* ---------- 注册与导出 ---------- */
.page-products .fn-two {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
}

.page-products .fn-col h3 {
  font-size: clamp(18px, 2.4vw, 24px);
  padding-bottom: 12px;
  border-bottom: 3px solid var(--ink);
}

.page-products .fn-steps {
  display: grid;
  gap: 12px;
  margin-top: 18px;
  counter-reset: fnstep;
}

.page-products .fn-steps li {
  position: relative;
  padding-left: 40px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
  counter-increment: fnstep;
}

.page-products .fn-steps li::before {
  content: counter(fnstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal);
  border: 1px solid var(--line);
  padding: 1px 5px;
  line-height: 1.5;
}

.page-products .fn-col .fn-figure {
  margin-top: 24px;
}

.page-products .fn-note {
  margin-top: clamp(30px, 5vw, 52px);
  padding: clamp(20px, 3vw, 32px);
  background: var(--ink-2);
  color: var(--paper);
  border-left: 6px solid var(--mint);
}

.page-products .fn-note-label {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mint);
  margin-bottom: 12px;
}

.page-products .fn-note p {
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 241, 232, .88);
}

.page-products .fn-note-list {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.page-products .fn-note-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .fn-note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 2px;
  background: var(--mint);
}

/* ---------- 收藏 ---------- */
.page-products .fn-collect-grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-products .fn-collect-head .fn-figure {
  margin-top: 24px;
}

.page-products .fn-collect-groups {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-products .fn-collect-group {
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: 16px 18px 18px;
  box-shadow: var(--fn-shadow-soft);
}

.page-products .fn-collect-group h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-products .fn-collect-group h3 .mono {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-size: 11px;
  color: var(--ink);
  background: var(--mint);
}

.page-products .fn-collect-group ul {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.page-products .fn-collect-group li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate);
}

.page-products .fn-collect-group li .mono {
  font-size: 11px;
  color: var(--teal);
  min-width: 18px;
}

/* ---------- 加载状态 ---------- */
.page-products .fn-states {
  display: grid;
  gap: var(--gap);
}

.page-products .fn-state {
  padding: 22px;
  background: var(--ink-2);
  border: 1px solid rgba(138, 153, 168, .4);
  border-top: 4px solid var(--line);
}

.page-products .fn-state--ok {
  border-top-color: var(--mint);
}

.page-products .fn-state--slow {
  border-top-color: var(--amber);
}

.page-products .fn-state--fail {
  border-top-color: var(--orange);
}

.page-products .fn-state-code {
  font-size: 11px;
  letter-spacing: .16em;
  color: rgba(244, 241, 232, .6);
  margin-bottom: 8px;
}

.page-products .fn-state h3 {
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--paper);
  margin-bottom: 10px;
}

.page-products .fn-state--ok h3 {
  color: var(--mint);
}

.page-products .fn-state--slow h3 {
  color: var(--amber);
}

.page-products .fn-state--fail h3 {
  color: var(--orange);
}

.page-products .fn-state p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 241, 232, .82);
}

.page-products .fn-state-action {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(138, 153, 168, .35);
  color: var(--paper) !important;
  font-weight: 600;
}

.page-products .fn-loading-body {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(30px, 5vw, 48px);
}

.page-products .fn-loading-body .fn-figure {
  margin-top: 0;
}

.page-products .fn-loading-copy h3 {
  font-size: clamp(18px, 2.4vw, 24px);
  color: var(--paper);
  padding-bottom: 12px;
  border-bottom: 3px solid var(--mint);
}

.page-products .fn-checklist {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.page-products .fn-checklist li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 241, 232, .88);
}

.page-products .fn-checklist li .mono {
  font-size: 11px;
  color: var(--mint);
  border: 1px solid rgba(35, 230, 176, .5);
  padding: 1px 5px;
}

.page-products .fn-loading-copy p {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 241, 232, .8);
}

.page-products .fn-loading-copy .btn {
  margin-top: 20px;
}

/* ---------- 功能地图 ---------- */
.page-products .fn-map-figure {
  overflow-x: auto;
  padding: 18px;
  background: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: var(--fn-shadow-soft);
}

.page-products .fn-map-svg {
  display: block;
  width: 100%;
  min-width: 540px;
  height: auto;
}

.page-products .fn-map-figure .media-caption {
  display: block;
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 241, 232, .72);
}

.page-products .fn-branches {
  display: grid;
  gap: 12px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-products .fn-branch {
  border: 2px solid var(--ink);
  background: var(--paper);
}

.page-products .fn-branch summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  background: var(--paper);
}

.page-products .fn-branch summary::-webkit-details-marker {
  display: none;
}

.page-products .fn-branch summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--teal);
  line-height: 1;
}

.page-products .fn-branch[open] summary::after {
  content: "−";
}

.page-products .fn-branch[open] summary {
  border-bottom: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.page-products .fn-branch[open] summary .fn-branch-code {
  color: var(--mint);
}

.page-products .fn-branch-code {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--teal);
}

.page-products .fn-branch-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .06em;
}

.page-products .fn-branch-body {
  display: grid;
  gap: 10px;
  padding: 16px;
}

.page-products .fn-branch-body p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-products .fn-branch-body strong {
  color: var(--ink);
}

/* ---------- 版本带 ---------- */
.page-products .fn-version-track {
  position: relative;
  display: grid;
  gap: 22px;
  padding-left: 26px;
}

.page-products .fn-version-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--line);
}

.page-products .fn-version-node {
  position: relative;
  padding-bottom: 4px;
}

.page-products .fn-version-dot {
  position: absolute;
  left: -26px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--teal);
  border: 2px solid var(--paper-2);
  box-shadow: 0 0 0 2px var(--teal);
}

.page-products .fn-version-year {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--teal);
  margin-bottom: 6px;
}

.page-products .fn-version-node h3 {
  font-size: clamp(16px, 2vw, 19px);
  margin-bottom: 8px;
}

.page-products .fn-version-node p:last-child {
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 上手路径 ---------- */
.page-products .fn-paths {
  display: grid;
  gap: var(--gap);
}

.page-products .fn-path {
  padding: 22px;
  background: var(--paper-2);
  border: 2px solid var(--ink);
  border-top: 6px solid var(--teal);
}

.page-products .fn-path-code {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--teal);
  margin-bottom: 10px;
}

.page-products .fn-path h3 {
  font-size: clamp(17px, 2vw, 20px);
  margin-bottom: 4px;
}

.page-products .fn-next {
  display: grid;
  gap: 14px;
  margin-top: clamp(30px, 5vw, 50px);
  padding: clamp(20px, 3vw, 30px);
  background: var(--ink);
  color: var(--paper);
}

.page-products .fn-next > p {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: .08em;
  font-size: 16px;
}

.page-products .fn-next-links {
  display: grid;
  gap: 10px;
}

.page-products .fn-next-link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid rgba(138, 153, 168, .3);
  color: var(--paper);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.6;
  transition: color .2s var(--ease);
}

.page-products .fn-next-link .mono {
  color: var(--mint);
}

.page-products .fn-next-link:hover,
.page-products .fn-next-link:focus-visible {
  color: var(--mint);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-products .fn-quad {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-products .fn-quad {
    padding-bottom: 22px;
  }

  .page-products .fn-quad-card:nth-child(even) {
    transform: translateY(22px);
  }

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

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

  .page-products .fn-next-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-products .fn-version-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 32px;
  }
}

@media (min-width: 880px) {
  .page-products .fn-hero-inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, 1fr);
    align-items: start;
    gap: clamp(24px, 4vw, 56px);
  }

  .page-products .fn-two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-products .fn-col--shift {
    margin-top: 48px;
  }

  .page-products .fn-collect-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
  }

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

  .page-products .fn-loading-body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-products .fn-quad {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .fn-version-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding-left: 0;
    padding-top: 34px;
  }

  .page-products .fn-version-track::before {
    left: 0;
    right: 0;
    top: 7px;
    bottom: auto;
    width: auto;
    height: 2px;
  }

  .page-products .fn-version-dot {
    left: 0;
    top: -34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fn-quad-card:nth-child(even) {
    transform: none;
  }

  .page-products .fn-next-link {
    transition: none;
  }
}
<<<END>>>