.page-products {
  --fx-index-w: 232px;
  --fx-rule: rgba(255, 255, 255, .16);
  --fx-muted: rgba(255, 255, 255, .72);
  --fx-brown-soft: #4a3d33;
}

/* ---------- 首屏 ---------- */
.page-products .fx-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 16% 8%, rgba(47, 111, 208, .30), transparent 44%),
    radial-gradient(circle at 88% 0%, rgba(200, 54, 43, .16), transparent 46%),
    var(--ink);
}

.page-products .fx-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .15) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
  pointer-events: none;
}

.page-products .fx-hero .container {
  position: relative;
  z-index: 1;
}

.page-products .page-head h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 5.2vw, 3.7rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  margin: 10px 0 18px;
  max-width: 20ch;
}

.page-products .fx-hero__lead {
  margin: 0;
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--fx-muted);
}

.page-products .fx-keyline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 34px 0 0;
  padding: 0;
  background: var(--fx-rule);
  border: 1px solid var(--fx-rule);
}

.page-products .fx-keyline__item {
  background: var(--ink);
  padding: 14px 16px 16px;
}

.page-products .fx-keyline dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--haze);
}

.page-products .fx-keyline dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: .02em;
  color: var(--flag-white);
}

/* ---------- 两栏骨架 ---------- */
.page-products .fx-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 44px;
  padding-top: 52px;
  padding-bottom: 84px;
}

.page-products .fx-block {
  min-width: 0;
}

.page-products .fx-panel {
  padding: clamp(22px, 4vw, 38px) clamp(18px, 3.5vw, 34px) clamp(26px, 4.5vw, 44px);
}

.page-products .fx-panel--paper {
  background: var(--cream);
  color: var(--brown);
}

.page-products .fx-panel--paper .fx-head h2 {
  color: var(--brown);
}

.page-products .fx-panel--paper .fx-head p {
  color: var(--fx-brown-soft);
}

.page-products .fx-panel--deep {
  background: var(--ink-2);
  border: 1px solid var(--fx-rule);
}

/* ---------- 区块标题 ---------- */
.page-products .fx-head {
  margin-bottom: 22px;
}

.page-products .fx-head__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--flag-red);
}

.page-products .fx-head h2 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.1vw, 2.05rem);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--flag-white);
}

.page-products .fx-head p {
  margin: 0;
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--fx-muted);
}

/* ---------- 侧栏索引 ---------- */
.page-products .fx-index {
  min-width: 0;
}

.page-products .fx-index__label {
  margin: 0 0 12px;
  color: var(--haze);
}

.page-products .fx-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .fx-index__item {
  margin: 0;
}

.page-products .fx-index__link {
  display: block;
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--haze);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-products .fx-index__link:hover {
  color: var(--flag-white);
}

.page-products .fx-index__link.is-active {
  color: var(--flag-white);
  border-bottom-color: var(--flag-red);
  background: rgba(255, 255, 255, .06);
}

/* ---------- 能力总览 ---------- */
.page-products .fx-cap {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--fx-rule);
}

.page-products .fx-cap__item {
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--fx-rule);
}

.page-products .fx-cap__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--flag-red);
}

.page-products .fx-cap__name {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  line-height: 1.35;
  color: var(--flag-white);
}

.page-products .fx-cap__use {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--haze);
}

.page-products .fx-cap__desc {
  margin: 8px 0 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--fx-muted);
}

/* ---------- 图片 ---------- */
.page-products .fx-figure {
  margin: 28px 0 0;
}

.page-products .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--ink-2);
}

/* ---------- 表格 ---------- */
.page-products .fx-tablewrap {
  margin-top: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .fx-table,
.page-products .fx-matrix {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-products .fx-table caption,
.page-products .fx-matrix caption {
  text-align: left;
  padding: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.page-products .fx-table caption {
  color: #6b5b4d;
}

.page-products .fx-table th,
.page-products .fx-matrix th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  white-space: nowrap;
  padding: 10px 14px 10px 0;
}

.page-products .fx-table th {
  color: #6b5b4d;
  border-bottom: 1px solid rgba(36, 28, 22, .28);
}

.page-products .fx-table td {
  padding: 11px 14px 11px 0;
  border-bottom: 1px solid rgba(36, 28, 22, .13);
  color: var(--brown);
  line-height: 1.62;
  vertical-align: top;
}

.page-products .fx-table tbody tr:nth-child(odd) {
  background: var(--paper);
}

.page-products .fx-table tbody tr:nth-child(even) {
  background: rgba(251, 246, 236, .5);
}

.page-products .fx-table td:first-child {
  width: 58px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--flag-red);
}

.page-products .fx-table td:nth-child(2) {
  font-weight: 700;
  white-space: nowrap;
}

.page-products .fx-table tbody tr:nth-child(even) td:first-child {
  color: var(--flag-blue);
}

/* ---------- 三级检索 ---------- */
.page-products .fx-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--fx-rule);
  border: 1px solid var(--fx-rule);
}

.page-products .fx-steps__item {
  background: var(--ink);
  padding: 20px 18px 24px;
}

.page-products .fx-steps__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--flag-yellow);
}

.page-products .fx-steps__title {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.08rem;
  line-height: 1.35;
  color: var(--flag-white);
}

.page-products .fx-steps__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--fx-muted);
}

.page-products .fx-steps--paper {
  margin-top: 26px;
  background: rgba(36, 28, 22, .18);
  border-color: rgba(36, 28, 22, .2);
}

.page-products .fx-steps--paper .fx-steps__item {
  background: var(--paper);
}

.page-products .fx-steps--paper .fx-steps__no {
  color: var(--flag-red);
}

.page-products .fx-steps--paper .fx-steps__title {
  color: var(--brown);
}

.page-products .fx-steps--paper .fx-steps__text {
  color: var(--fx-brown-soft);
}

/* ---------- 区域板块 ---------- */
.page-products .fx-regions {
  margin-top: 26px;
}

.page-products .fx-regions__label {
  margin: 0 0 12px;
  color: var(--haze);
}

.page-products .fx-regions__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .fx-regions__note {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--fx-muted);
}

/* ---------- 比对矩阵 ---------- */
.page-products .fx-tablewrap--dark {
  margin-top: 4px;
  border-top: 1px solid var(--fx-rule);
}

.page-products .fx-matrix {
  min-width: 560px;
}

.page-products .fx-matrix caption {
  padding-top: 16px;
  color: var(--haze);
}

.page-products .fx-matrix th {
  color: var(--haze);
  border-bottom: 1px solid var(--fx-rule-strong);
}

.page-products .fx-matrix tbody th {
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--flag-white);
  font-weight: 500;
  border-bottom: 1px solid var(--fx-rule);
  padding: 12px 16px 12px 0;
}

.page-products .fx-matrix td {
  border-bottom: 1px solid var(--fx-rule);
  padding: 12px 16px 12px 0;
}

.page-products .fx-cell {
  display: inline-block;
  min-width: 54px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  text-align: center;
  color: var(--flag-white);
}

.page-products .fx-cell--low {
  background: rgba(47, 111, 208, .30);
}

.page-products .fx-cell--mid {
  background: rgba(47, 111, 208, .62);
}

.page-products .fx-cell--high {
  background: var(--flag-blue);
}

.page-products .fx-compare-notes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 30px;
}

.page-products .label-mono {
  display: block;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--haze);
}

.page-products .fx-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--fx-rule);
}

.page-products .fx-list li {
  position: relative;
  padding: 10px 0 10px 18px;
  border-bottom: 1px solid var(--fx-rule);
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--fx-muted);
}

.page-products .fx-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 7px;
  height: 1px;
  background: var(--flag-blue);
}

.page-products .fx-list--num {
  counter-reset: fxnum;
}

.page-products .fx-list--num li::before {
  display: none;
}

.page-products .fx-list--num li {
  counter-increment: fxnum;
  padding-left: 30px;
}

.page-products .fx-list--num li::after {
  content: counter(fxnum, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--flag-yellow);
}

/* ---------- 季票路径提示 ---------- */
.page-products .fx-inline-link {
  color: var(--flag-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-products .fx-steps--paper .fx-inline-link {
  color: var(--flag-red);
}

.page-products .fx-aside {
  margin: 26px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--flag-yellow);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--fx-muted);
}

/* ---------- 提醒卡片 ---------- */
.page-products .fx-alert-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--fx-rule);
  border: 1px solid var(--fx-rule);
}

.page-products .fx-alert-card {
  background: var(--ink);
  padding: 22px 18px 26px;
}

.page-products .fx-alert-card--red .fx-alert-card__num {
  color: var(--flag-red);
}

.page-products .fx-alert-card__tag {
  margin: 0 0 10px;
  color: var(--haze);
}

.page-products .fx-alert-card__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 7vw, 2.9rem);
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--flag-blue);
}

.page-products .fx-alert-card__num span {
  margin-left: 6px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--haze);
}

.page-products .fx-alert-card__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.08rem;
  color: var(--flag-white);
}

.page-products .fx-alert-card__text {
  margin: 0;
  max-width: 30em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--fx-muted);
}

/* ---------- 勘误流程 ---------- */
.page-products .fx-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--fx-rule);
}

.page-products .fx-flow__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 0 14px;
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--fx-rule);
}

.page-products .fx-flow__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--flag-green);
  padding-top: 3px;
}

.page-products .fx-flow__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  color: var(--flag-white);
}

.page-products .fx-flow__text {
  margin: 0;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--fx-muted);
}

.page-products .fx-mono {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: .02em;
  color: var(--flag-white);
  word-break: break-all;
}

/* ---------- 版本路线 ---------- */
.page-products .fx-road {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .fx-road__item {
  position: relative;
  padding: 0 0 28px 28px;
  border-left: 1px solid var(--fx-rule);
}

.page-products .fx-road__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-products .fx-road__dot {
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--flag-blue);
}

.page-products .fx-road__item--v1 .fx-road__dot {
  background: var(--haze);
}

.page-products .fx-road__item--v2 .fx-road__dot {
  background: var(--flag-blue);
}

.page-products .fx-road__item--v3 .fx-road__dot {
  background: var(--flag-green);
}

.page-products .fx-road__item--v4 .fx-road__dot {
  background: var(--flag-red);
}

.page-products .fx-road__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--flag-white);
}

.page-products .fx-road__title {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  color: var(--flag-white);
}

.page-products .fx-road__text {
  margin: 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--fx-muted);
}

/* ---------- 收束 ---------- */
.page-products .fx-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.page-products .fx-next h2 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.1vw, 2rem);
  color: var(--flag-white);
}

.page-products .fx-next p {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--fx-muted);
}

.page-products .fx-next__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
}

.page-products .fx-next__actions .link-more {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .fx-keyline {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

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

  .page-products .fx-alert-card--wide {
    grid-column: 1 / -1;
  }

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

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

@media (min-width: 720px) {
  .page-products .fx-cap__item {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr) 190px;
    gap: 0 16px;
    align-items: start;
  }

  .page-products .fx-cap__no {
    grid-column: 1;
    grid-row: 1;
  }

  .page-products .fx-cap__name {
    grid-column: 2;
    grid-row: 1;
    margin-top: 0;
  }

  .page-products .fx-cap__use {
    grid-column: 3;
    grid-row: 1;
    margin-top: 4px;
    text-align: right;
  }

  .page-products .fx-cap__desc {
    grid-column: 2 / 4;
    grid-row: 2;
  }

  .page-products .fx-next {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-products .fx-road {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .fx-road__item {
    border-left: 0;
    border-top: 1px solid var(--fx-rule);
    padding: 24px 22px 0 0;
  }

  .page-products .fx-road__item:last-child {
    border-top-color: var(--fx-rule);
    border-left-color: transparent;
    padding-bottom: 0;
  }

  .page-products .fx-road__dot {
    left: 0;
    top: -5px;
  }
}

@media (min-width: 1040px) {
  .page-products .fx-layout {
    grid-template-columns: var(--fx-index-w) minmax(0, 1fr);
    column-gap: 56px;
    row-gap: 60px;
  }

  .page-products .fx-index {
    grid-column: 1;
    grid-row: 1;
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
    padding-right: 8px;
    border-right: 1px solid var(--fx-rule);
  }

  .page-products .fx-index__list {
    display: block;
  }

  .page-products .fx-index__link {
    border-bottom: 0;
    border-left: 2px solid transparent;
    padding: 8px 10px 8px 12px;
  }

  .page-products .fx-index__link.is-active {
    border-left-color: var(--flag-red);
    border-bottom-color: transparent;
    background: rgba(255, 255, 255, .05);
  }

  .page-products .fx-block {
    grid-column: 2;
  }

  .page-products .fx-block--wide {
    grid-column: 1 / -1;
  }

  .page-products .fx-panel--deep {
    padding-left: clamp(24px, 4vw, 56px);
    padding-right: clamp(24px, 4vw, 56px);
  }
}

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

.page-products {
  --fx-rule-strong: currentColor;
}