.page-products {
  --pp-shadow: 7px 7px 0 var(--yk-ink);
  --pp-shadow-mint: 6px 6px 0 var(--yk-mint);
  --pp-shadow-teal: 8px 8px 0 var(--yk-teal);
  background: var(--yk-sand);
  color: var(--yk-ink);
  font-family: var(--yk-font-body);
  line-height: 1.75;
  overflow-x: clip;
  padding-bottom: clamp(48px, 8vw, 96px);
}

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

.page-products a:focus-visible,
.page-products summary:focus-visible,
.page-products label:focus-visible {
  outline: 2px solid var(--yk-orange);
  outline-offset: 2px;
}

/* ---------- 面包屑 ---------- */
.page-products .prod-crumb {
  box-sizing: border-box;
  max-width: var(--yk-max);
  margin-inline: auto;
  padding: clamp(16px, 3vw, 28px) var(--yk-gutter) 0;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  box-sizing: border-box;
  max-width: var(--yk-max);
  margin-inline: auto;
  padding: clamp(20px, 4vw, 44px) var(--yk-gutter) clamp(36px, 6vw, 68px);
  display: grid;
  gap: clamp(28px, 5vw, 48px);
}

.page-products .prod-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 78%;
  background: linear-gradient(155deg, var(--yk-mint), rgba(216, 232, 228, 0));
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
  pointer-events: none;
}

.page-products .prod-hero__text,
.page-products .prod-hero__visual {
  position: relative;
  z-index: 1;
}

.page-products .prod-hero__title {
  margin: 10px 0 0;
  font-family: var(--yk-font-head);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-products .prod-hero__lede {
  margin-top: 18px;
  max-width: 34em;
  font-size: clamp(16px, 2.2vw, 18px);
  color: var(--yk-ink);
}

.page-products .prod-hero__actions {
  margin-top: 24px;
}

.page-products .prod-pins {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 30px;
}

.page-products .prod-pin {
  position: relative;
  padding-left: 18px;
}

.page-products .prod-pin::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--yk-orange);
  box-shadow: 0 0 0 3px rgba(255, 106, 43, 0.18);
}

.page-products .prod-pin__value {
  display: block;
  font-family: var(--yk-font-mono);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--yk-teal);
}

.page-products .prod-pin__unit {
  font-size: 0.6em;
  margin-left: 2px;
  color: var(--yk-gray);
}

.page-products .prod-pin__label {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--yk-gray);
}

.page-products .prod-hero__visual {
  position: relative;
}

.page-products .prod-hero__figure {
  margin: 0;
}

.page-products .prod-hero__figure img {
  width: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-products .prod-hero__capsule {
  margin: 0;
  position: absolute;
  left: 10px;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  background: var(--yk-ink);
  color: var(--yk-paper);
  border: 2px solid var(--yk-orange);
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  box-shadow: 4px 4px 0 rgba(19, 42, 58, 0.35);
}

.page-products .prod-hero__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--yk-green);
}

/* ---------- 主体骨架 ---------- */
.page-products .prod-body {
  padding-inline: var(--yk-gutter);
}

.page-products .prod-shell {
  max-width: var(--yk-max);
  margin-inline: auto;
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-products .prod-nav {
  border-top: 2px solid var(--yk-ink);
  padding-top: 12px;
}

.page-products .prod-nav__title {
  margin: 0 0 8px;
  font-family: var(--yk-font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--yk-gray);
}

.page-products .prod-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}

.page-products .prod-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 3px 0;
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--yk-gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s var(--yk-ease), border-color 0.15s var(--yk-ease);
}

.page-products .prod-index__link:hover {
  color: var(--yk-ink);
  border-bottom-color: var(--yk-orange);
}

.page-products .prod-index__num {
  color: var(--yk-orange);
  font-weight: 700;
}

.page-products .prod-chapters {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-products .prod-chapter {
  padding-block: clamp(32px, 5vw, 56px);
  border-top: 2px solid var(--yk-line);
  scroll-margin-top: 104px;
}

.page-products .prod-chapter:first-child {
  border-top: 0;
  padding-top: clamp(20px, 3vw, 32px);
}

.page-products .prod-chapter__head {
  max-width: 48ch;
}

.page-products .prod-chapter__num {
  display: inline-block;
  margin: 0 0 10px;
  padding-bottom: 3px;
  border-bottom: 2px solid var(--yk-orange);
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--yk-orange);
}

.page-products .prod-chapter__title {
  margin: 0;
  font-family: var(--yk-font-head);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.page-products .prod-chapter__lede {
  margin-top: 14px;
  max-width: 40em;
  font-size: 16px;
}

/* ---------- 面板示意 ---------- */
.page-products .panel-mock {
  margin-top: clamp(24px, 4vw, 36px);
  border: 3px solid var(--yk-ink);
  background: var(--yk-paper);
  box-shadow: var(--pp-shadow-teal);
}

.page-products .panel-mock__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  background: var(--yk-deep);
  border-bottom: 3px solid var(--yk-ink);
}

.page-products .pm-tab {
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 3px 9px;
  color: var(--yk-mint);
  border: 1px solid rgba(216, 232, 228, 0.35);
}

.page-products .pm-tab.is-on {
  background: var(--yk-orange);
  color: var(--yk-ink);
  border-color: var(--yk-ink);
  font-weight: 700;
}

.page-products .pm-time {
  margin-left: auto;
  font-family: var(--yk-font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--yk-mint);
}

.page-products .panel-mock__cols {
  display: grid;
  grid-template-columns: 1fr;
}

.page-products .pm-col {
  padding: 14px 16px;
  border-top: 2px solid var(--yk-line);
}

.page-products .panel-mock__cols .pm-col:first-child {
  border-top: 0;
}

.page-products .pm-col--alt {
  background: var(--yk-mint);
}

.page-products .pm-col__title {
  margin: 0 0 8px;
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--yk-teal);
}

.page-products .pm-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 0;
  padding: 7px 0;
  border-bottom: 1px dashed var(--yk-line);
  font-size: 13px;
}

.page-products .pm-line:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .pm-line span:last-child {
  font-family: var(--yk-font-mono);
  font-size: 12px;
  color: var(--yk-teal);
}

/* ---------- 指标卡 ---------- */
.page-products .prod-stats {
  list-style: none;
  margin: clamp(24px, 4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .prod-stat {
  border: 2px solid var(--yk-ink);
  background: var(--yk-paper);
  padding: 16px 18px;
  box-shadow: var(--pp-shadow-mint);
  transition: transform 0.15s var(--yk-ease), box-shadow 0.15s var(--yk-ease);
}

.page-products .prod-stat:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--yk-teal);
}

.page-products .prod-stat__num {
  margin: 0;
  font-family: var(--yk-font-mono);
  font-size: clamp(28px, 4.6vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--yk-teal);
}

.page-products .prod-stat__unit {
  font-size: 0.45em;
  margin-left: 3px;
  color: var(--yk-gray);
}

.page-products .prod-stat__label {
  margin: 10px 0 0;
  font-size: 14px;
  color: var(--yk-ink);
}

/* ---------- 双栏与图 ---------- */
.page-products .prod-split {
  display: grid;
  gap: clamp(22px, 4vw, 34px);
  margin-top: clamp(24px, 4vw, 34px);
}

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

.page-products .prod-figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-products .yk-figure--wide img {
  aspect-ratio: 21 / 9;
}

/* ---------- 场馆字段 ---------- */
.page-products .prod-fields {
  border-top: 2px solid var(--yk-ink);
}

.page-products .prod-field {
  border-bottom: 2px solid var(--yk-line);
}

.page-products .prod-field > summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  color: var(--yk-ink);
  transition: color 0.15s var(--yk-ease);
}

.page-products .prod-field > summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-field > summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--yk-font-mono);
  font-size: 14px;
  color: var(--yk-orange);
}

.page-products .prod-field[open] > summary::after {
  content: "－";
}

.page-products .prod-field[open] > summary {
  color: var(--yk-teal);
}

.page-products .prod-field__idx {
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yk-orange);
}

.page-products .prod-field__body {
  margin: 0 0 16px 32px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yk-gray);
}

/* ---------- 名单状态 ---------- */
.page-products .prod-status-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .prod-status {
  border-left: 3px solid var(--yk-teal);
  background: var(--yk-paper);
  padding: 14px 16px;
}

.page-products .prod-status p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--yk-ink);
}

.page-products .prod-status .yk-status {
  font-family: var(--yk-font-mono);
  font-size: 12px;
}

/* ---------- 技术对比深色板 ---------- */
.page-products .prod-board {
  margin-top: clamp(24px, 4vw, 34px);
  padding: clamp(18px, 3.4vw, 34px);
  background: var(--yk-deep);
  color: var(--yk-paper);
  border: 3px solid var(--yk-ink);
  box-shadow: 10px 10px 0 var(--yk-orange);
}

.page-products .prod-board__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding-bottom: 16px;
  border-bottom: 2px solid rgba(216, 232, 228, 0.25);
}

.page-products .prod-board__label {
  margin: 0 auto 0 0;
  font-family: var(--yk-font-head);
  font-size: clamp(16px, 2.4vw, 20px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--yk-paper);
}

.page-products .prod-stamp {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0;
  padding: 4px 10px;
  border: 1px solid rgba(216, 232, 228, 0.4);
  font-family: var(--yk-font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--yk-mint);
  transition: border-color 0.15s var(--yk-ease), background-color 0.15s var(--yk-ease);
}

.page-products .prod-stamp:hover {
  border-color: var(--yk-orange);
  background-color: rgba(255, 106, 43, 0.12);
}

.page-products .prod-stamp__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--yk-green);
}

.page-products .prod-board__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: 20px;
}

.page-products .prod-metric-group__title {
  margin: 0 0 12px;
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: var(--yk-orange);
}

.page-products .prod-metric-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .prod-metric {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 5px 0;
  font-size: 14px;
}

.page-products .prod-metric__name {
  flex: 0 0 auto;
  min-width: 6.2em;
  color: var(--yk-mint);
}

.page-products .prod-metric__bar {
  position: relative;
  flex: 1 1 auto;
  min-width: 40px;
  height: 8px;
  background: rgba(216, 232, 228, 0.16);
  overflow: hidden;
}

.page-products .prod-metric__bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 58%;
  background: var(--yk-orange);
}

.page-products .prod-metric-list li:nth-child(3n + 2) .prod-metric__bar::after {
  width: 74%;
  background: var(--yk-mint);
}

.page-products .prod-metric-list li:nth-child(3n) .prod-metric__bar::after {
  width: 36%;
}

/* ---------- 收藏分组 ---------- */
.page-products .prod-fav {
  list-style: none;
  margin: clamp(24px, 4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .prod-fav__item {
  position: relative;
}

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

.page-products .prod-fav__chip {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 16px;
  border: 2px solid var(--yk-line);
  background: var(--yk-paper);
  cursor: pointer;
  transition: border-color 0.15s var(--yk-ease), box-shadow 0.15s var(--yk-ease), transform 0.15s var(--yk-ease);
}

.page-products .prod-fav__chip:hover {
  border-color: var(--yk-teal);
}

.page-products .prod-fav__input:focus-visible + .prod-fav__chip {
  outline: 2px solid var(--yk-orange);
  outline-offset: 2px;
}

.page-products .prod-fav__input:checked + .prod-fav__chip {
  border-color: var(--yk-ink);
  box-shadow: 6px 6px 0 var(--yk-teal);
  transform: translate(-2px, -2px);
}

.page-products .prod-fav__name {
  font-weight: 700;
  font-size: 16px;
  color: var(--yk-ink);
}

.page-products .prod-fav__dim {
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--yk-gray);
}

.page-products .prod-fav__state::after {
  content: "未收藏";
  font-family: var(--yk-font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--yk-gray);
}

.page-products .prod-fav__input:checked + .prod-fav__chip .prod-fav__state::after {
  content: "已收藏";
  color: var(--yk-orange);
}

.page-products .prod-fav__note {
  margin-top: 22px;
  max-width: 42em;
  font-size: 14px;
  color: var(--yk-gray);
}

/* ---------- 场景路径 ---------- */
.page-products .prod-paths {
  list-style: none;
  margin: clamp(24px, 4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .prod-path {
  border: 2px solid var(--yk-ink);
  background: var(--yk-paper);
  padding: 16px 18px;
  box-shadow: var(--pp-shadow-mint);
}

.page-products .prod-path__role {
  margin: 0;
  font-family: var(--yk-font-head);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--yk-teal);
}

.page-products .prod-path__desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--yk-ink);
}

.page-products .prod-flow {
  list-style: none;
  margin: clamp(22px, 3.4vw, 30px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .prod-flow li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--yk-line);
  background: var(--yk-paper);
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--yk-ink);
}

.page-products .prod-flow li::after {
  content: "→";
  color: var(--yk-orange);
}

.page-products .prod-flow li:last-child::after {
  content: "";
}

/* ---------- 延伸阅读 ---------- */
.page-products .prod-more {
  margin-top: clamp(36px, 6vw, 64px);
  padding: clamp(20px, 3.4vw, 32px);
  background: var(--yk-paper);
  border: 2px solid var(--yk-ink);
  box-shadow: var(--pp-shadow);
}

.page-products .prod-more__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .prod-more__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 2px;
  border-bottom: 1px solid var(--yk-line);
  font-size: 15px;
  color: var(--yk-ink);
  text-decoration: none;
  transition: color 0.15s var(--yk-ease), border-color 0.15s var(--yk-ease);
}

.page-products .prod-more__link:hover {
  color: var(--yk-teal);
  border-bottom-color: var(--yk-orange);
}

.page-products .prod-more__num {
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yk-orange);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .panel-mock__cols {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .panel-mock__cols .pm-col:first-child {
    border-top: 0;
  }

  .page-products .pm-col + .pm-col {
    border-top: 0;
    border-left: 2px solid var(--yk-line);
  }

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

@media (min-width: 720px) {
  .page-products .prod-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .prod-stat:nth-child(2) {
    transform: translateY(14px);
  }

  .page-products .prod-stat:nth-child(3) {
    transform: translateY(5px);
  }

  .page-products .prod-stat:nth-child(2):hover,
  .page-products .prod-stat:nth-child(3):hover {
    transform: translate(-2px, 10px);
  }

  .page-products .prod-paths {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 20px;
  }

  .page-products .prod-path:nth-child(even) {
    transform: translateY(12px);
  }

  .page-products .prod-more__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 28px;
  }
}

@media (min-width: 820px) {
  .page-products .prod-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
    align-items: start;
  }

  .page-products .prod-split--rev {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  }

  .page-products .prod-split .prod-figure {
    transform: translateY(-10px);
  }
}

@media (min-width: 900px) {
  .page-products .prod-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
  }

  .page-products .prod-hero__capsule {
    left: -10px;
    bottom: 16%;
  }
}

@media (min-width: 1000px) {
  .page-products .prod-shell {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-products .prod-nav {
    position: sticky;
    top: 104px;
    border-top: 0;
    border-left: 2px solid var(--yk-line);
    padding: 4px 0 0 16px;
  }

  .page-products .prod-index {
    display: grid;
    gap: 2px;
  }

  .page-products .prod-index__link {
    padding: 6px 0;
  }
}

@media (min-width: 1040px) {
  .page-products .prod-board__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-stat,
  .page-products .prod-stat:hover,
  .page-products .prod-stat:nth-child(2),
  .page-products .prod-stat:nth-child(3),
  .page-products .prod-stat:nth-child(2):hover,
  .page-products .prod-stat:nth-child(3):hover,
  .page-products .prod-path:nth-child(even),
  .page-products .prod-split .prod-figure,
  .page-products .prod-fav__chip,
  .page-products .prod-fav__input:checked + .prod-fav__chip {
    transform: none;
    transition: none;
  }
}