.page-products {
  --split: 50%;
  --view-accent: var(--red);
  --card-gap: clamp(14px, 2vw, 22px);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumbs {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-products .exp-hero {
  padding-top: clamp(18px, 3vw, 34px);
}

.page-products .exp-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 44px);
  align-items: start;
}

.page-products .exp-hero__title {
  font-size: clamp(30px, 7vw, 56px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 10px 0 18px;
}

.page-products .exp-hero__lede {
  max-width: 34em;
}

.page-products .exp-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-products .first-minute {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  box-shadow: 4px 4px 0 rgba(27, 21, 18, 0.5);
  padding: clamp(18px, 3vw, 28px);
}

.page-products .first-minute__title {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--mist);
  margin: 0 0 16px;
  text-transform: uppercase;
}

.page-products .first-minute__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .first-minute__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-products .first-minute__list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-products .first-minute__no {
  color: var(--amber);
  font-size: 13px;
  line-height: 1.8;
}

.page-products .first-minute__list strong {
  display: block;
  font-size: 16px;
  color: var(--paper);
  margin-bottom: 4px;
}

.page-products .first-minute__list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

.page-products .exp-hero__strip {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: clamp(16px, 2.5vw, 22px) 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  font-size: 14px;
  color: var(--mist);
  letter-spacing: 0.02em;
}

.page-products .exp-hero__strip .num {
  color: var(--amber);
  font-size: 26px;
  margin-right: 8px;
  vertical-align: -2px;
}

/* ---------- 图片容器 ---------- */
.page-products .exp-shot {
  margin: 0 0 clamp(24px, 4vw, 40px);
}

.page-products .image-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 视图切换面板 ---------- */
.page-products .view-switch {
  position: relative;
}

.page-products .view-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .view-switch__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .view-switch__tab {
  cursor: pointer;
  padding: 11px 18px;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--mist);
  background: var(--panel);
  border: 1px solid var(--line);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.page-products .view-switch__tab:hover {
  color: var(--paper);
}

.page-products .view-switch__input:focus-visible ~ .view-switch__tabs {
  outline: 2px dashed var(--amber);
  outline-offset: 4px;
}

.page-products #view-cal:checked ~ .view-switch__tabs .view-switch__tab[for="view-cal"] {
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
}

.page-products #view-league:checked ~ .view-switch__tabs .view-switch__tab[for="view-league"] {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--paper);
}

.page-products #view-diff:checked ~ .view-switch__tabs .view-switch__tab[for="view-diff"] {
  background: var(--amber);
  border-color: var(--amber-deep);
  color: var(--brown);
}

.page-products .view-switch__panels {
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--red);
  padding: clamp(20px, 3vw, 34px);
}

.page-products .view-switch__panel {
  display: none;
}

.page-products .view-switch__panel.is-shown,
.page-products #view-cal:checked ~ .view-switch__panels .view-switch__panel[data-view="cal"],
.page-products #view-league:checked ~ .view-switch__panels .view-switch__panel[data-view="league"],
.page-products #view-diff:checked ~ .view-switch__panels .view-switch__panel[data-view="diff"] {
  display: block;
  animation: exp-fade 180ms ease both;
}

@keyframes exp-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

.page-products .view-switch__name {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  color: var(--paper);
}

.page-products .view-switch__text {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 46em;
}

.page-products .view-switch__meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
  color: var(--teal-soft);
}

.page-products .view-switch__meta li {
  padding-left: 16px;
  position: relative;
}

.page-products .view-switch__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--amber);
}

/* ---------- 新旧对照 ---------- */
.page-products .diff-panel {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .diff-panel__pos {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .diff-panel__stage {
  position: relative;
  aspect-ratio: 16 / 9;
  min-height: 220px;
  border: 1px solid var(--brown);
  background: var(--panel);
  overflow: hidden;
  box-shadow: 4px 4px 0 rgba(27, 21, 18, 0.5);
}

.page-products .diff-panel__layer {
  position: absolute;
  inset: 0;
  padding: clamp(12px, 2vw, 20px);
}

.page-products .diff-panel__layer--old {
  background: var(--ink);
}

.page-products .diff-panel__layer--new {
  width: var(--split);
  overflow: hidden;
  background: var(--panel);
  border-right: none;
}

.page-products .diff-panel__cap {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
  margin: 0 0 12px;
  white-space: nowrap;
}

.page-products .diff-panel__layer--new .diff-panel__cap {
  color: var(--amber);
}

.page-products .diff-panel__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--split);
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--teal-soft) 0 6px, transparent 6px 12px);
  transform: translateX(-1px);
}

.page-products .diff-panel__knob {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--teal);
  border: 2px solid var(--ink);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 3px rgba(134, 207, 196, 0.28);
}

.page-products #diff-old:checked ~ .diff-panel__stage { --split: 30%; }
.page-products #diff-half:checked ~ .diff-panel__stage { --split: 50%; }
.page-products #diff-new:checked ~ .diff-panel__stage { --split: 72%; }

.page-products .diff-panel__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
}

.page-products .diff-panel__hint {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .diff-panel__toggles {
  display: flex;
  gap: 8px;
}

.page-products .diff-panel__toggle {
  cursor: pointer;
  padding: 8px 14px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
  border: 1px solid var(--line);
  background: transparent;
  border-radius: var(--radius);
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.page-products .diff-panel__toggle:hover {
  color: var(--paper);
  border-color: var(--teal);
}

.page-products .diff-panel__pos:focus-visible ~ .diff-panel__controls {
  outline: 2px dashed var(--amber);
  outline-offset: 4px;
}

.page-products #diff-old:checked ~ .diff-panel__controls .diff-panel__toggle[for="diff-old"],
.page-products #diff-half:checked ~ .diff-panel__controls .diff-panel__toggle[for="diff-half"],
.page-products #diff-new:checked ~ .diff-panel__controls .diff-panel__toggle[for="diff-new"] {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--ink);
}

/* 线框示意 */
.page-products .wire {
  display: grid;
  gap: 8px;
  height: calc(100% - 30px);
}

.page-products .wire--old {
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: auto 1fr 1fr;
  align-content: start;
}

.page-products .wire__chip {
  height: 14px;
  background: var(--brown);
  border: 1px solid rgba(244, 237, 225, 0.22);
}

.page-products .wire__block {
  border: 1px solid var(--line);
  background: rgba(31, 74, 64, 0.55);
}

.page-products .wire__block--a { grid-column: 1 / 4; grid-row: 2; background: rgba(192, 73, 43, 0.35); }
.page-products .wire__block--b { grid-column: 4 / 7; grid-row: 2; }
.page-products .wire__block--c { grid-column: 1 / 7; grid-row: 3; }

.page-products .wire--new {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 1fr 1fr;
}

.page-products .wire__rail {
  grid-column: 1 / 3;
  display: flex;
  gap: 6px;
}

.page-products .wire__rail span {
  flex: 1;
  height: 16px;
  border-radius: 8px;
  background: var(--teal);
  opacity: 0.8;
}

.page-products .wire__rail span:first-child {
  background: var(--red);
  opacity: 1;
}

.page-products .wire__block--d { grid-column: 1; grid-row: 2 / 4; background: rgba(242, 178, 62, 0.28); }
.page-products .wire__block--e { grid-column: 2; grid-row: 2 / 4; }

/* ---------- 联赛轨道 ---------- */
.page-products .rail-copy {
  align-self: center;
}

.page-products .rail-figure {
  margin: 0;
}

.page-products .rail-caption {
  margin: clamp(22px, 3vw, 34px) 0 12px;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .exp-rail {
  padding: 4px 0 10px;
}

/* ---------- 产品线推荐 ---------- */
.page-products .line-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--card-gap);
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-products .line-card {
  position: relative;
  background: var(--paper);
  color: var(--brown);
  border: 1px solid var(--brown);
  box-shadow: 4px 4px 0 rgba(27, 21, 18, 0.55);
  padding: clamp(20px, 3vw, 28px);
  padding-right: calc(clamp(20px, 3vw, 28px) + 18px);
}

.page-products .line-card__fold {
  position: absolute;
  top: 0;
  right: 0;
  width: 30px;
  height: 30px;
  background: linear-gradient(225deg, var(--ink) 0 49%, var(--red-soft) 50% 100%);
}

.page-products .line-card--clip .line-card__fold {
  background: linear-gradient(225deg, var(--ink) 0 49%, var(--amber) 50% 100%);
}

.page-products .line-card--multi .line-card__fold {
  background: linear-gradient(225deg, var(--ink) 0 49%, var(--teal-soft) 50% 100%);
}

.page-products .line-card__name {
  font-size: clamp(19px, 2.6vw, 23px);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 14px 0 10px;
  color: var(--brown);
}

.page-products .line-card__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: #43382f;
}

.page-products .line-card__path {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(27, 21, 18, 0.28);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: #5a4c40;
}

.page-products .line-card__path .num {
  color: var(--red);
  margin-right: 6px;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-products .line-figure {
  margin: 0;
}

/* ---------- 动作线 ---------- */
.page-products .route-board {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: clamp(18px, 3vw, 32px);
  margin-bottom: clamp(24px, 4vw, 38px);
}

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

.page-products .route-list {
  list-style: none;
  margin: clamp(16px, 2vw, 24px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .route-step {
  border-top: 2px solid var(--line);
  padding-top: 14px;
}

.page-products .route-step--one { border-top-color: var(--red); }
.page-products .route-step--two { border-top-color: var(--teal); }
.page-products .route-step--three { border-top-color: var(--amber); }

.page-products .route-step__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
  margin-bottom: 6px;
}

.page-products .route-step h3 {
  font-size: 17px;
  font-weight: 800;
  margin: 0 0 6px;
  color: var(--paper);
}

.page-products .route-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .route-tail {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 52em;
}

.page-products .route-tail a {
  color: var(--teal-soft);
}

/* ---------- 版本记录 ---------- */
.page-products .versions {
  align-items: start;
}

.page-products .versions__main {
  display: grid;
  gap: 0;
}

.page-products .version {
  border-top: 1px solid var(--line);
  padding: clamp(16px, 2.4vw, 22px) 0;
}

.page-products .version:last-child {
  border-bottom: 1px solid var(--line);
}

.page-products .version__tag {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mist);
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-products .version__name {
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 800;
  margin: 0 0 8px;
  color: var(--paper);
}

.page-products .version__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 42em;
}

.page-products .versions__aside {
  display: grid;
  gap: 14px;
}

.page-products .aside-note {
  background: var(--paper);
  color: var(--brown);
  border: 1px solid var(--brown);
  box-shadow: 4px 4px 0 rgba(27, 21, 18, 0.5);
  padding: 20px;
}

.page-products .aside-note--ghost {
  background: transparent;
  color: var(--mist);
  border: 1px dashed var(--line);
  box-shadow: none;
}

.page-products .aside-note--ghost .aside-note__title {
  color: var(--teal-soft);
}

.page-products .aside-note__title {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 14px;
  font-weight: 700;
}

.page-products .aside-note__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
}

.page-products .aside-note__list .num {
  display: inline-block;
  min-width: 2.4em;
  color: var(--red);
  font-weight: 700;
}

.page-products .aside-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
}

.page-products .aside-note a {
  color: var(--teal-deep);
}

.page-products .aside-note--ghost a {
  color: var(--teal-soft);
}

.page-products .versions__more {
  margin-top: clamp(20px, 3vw, 30px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-products .versions__more p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .versions__more a {
  color: var(--teal-soft);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 760px) {
  .page-products .exp-hero__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-products .exp-hero__strip {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-products .line-grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
  }

  .page-products .line-card--clip {
    margin-top: 22px;
  }

  .page-products .line-card--multi {
    margin-top: 44px;
  }

  .page-products .route-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-products .versions {
    display: grid;
    grid-template-columns: 1fr minmax(240px, 320px);
    gap: clamp(24px, 3vw, 44px);
  }
}

@media (min-width: 1080px) {
  .page-products .exp-hero__title {
    max-width: 12em;
  }

  .page-products .rail-caption {
    margin-top: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .view-switch__panel.is-shown,
  .page-products #view-cal:checked ~ .view-switch__panels .view-switch__panel[data-view="cal"],
  .page-products #view-league:checked ~ .view-switch__panels .view-switch__panel[data-view="league"],
  .page-products #view-diff:checked ~ .view-switch__panels .view-switch__panel[data-view="diff"] {
    animation: none;
  }

  .page-products .view-switch__tab,
  .page-products .diff-panel__toggle {
    transition: none;
  }
}
<<<END>>>