.page-products {
  --prod-rail: 236px;
  --prod-edge: rgba(53, 240, 208, .3);
  --prod-shadow: rgba(36, 30, 26, .22);
  background: var(--sea);
  color: var(--white);
  font-family: var(--font-sans);
  line-height: 1.75;
  padding-bottom: clamp(48px, 8vw, 120px);
  overflow-x: clip;
}

.page-products .breadcrumb {
  padding-top: clamp(14px, 2.4vw, 24px);
}

.page-products .breadcrumb a {
  color: var(--txt-72);
}

/* ---------- 首屏 ---------- */

.page-products .prod-hero {
  position: relative;
  padding: clamp(22px, 3.6vw, 44px) 0 clamp(28px, 4.6vw, 64px);
  border-bottom: 1px solid var(--line);
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -52px;
  width: 62%;
  height: 190px;
  background: linear-gradient(102deg, transparent 8%, rgba(53, 240, 208, .13) 46%, rgba(138, 108, 255, .09) 72%, transparent 96%);
  transform: rotate(-7deg);
  pointer-events: none;
}

.page-products .prod-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-products .prod-hero h1 {
  margin: 12px 0 0;
  max-width: 19ch;
  font-size: clamp(30px, 5.6vw, 58px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-products .prod-hero__lede {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--txt-72);
}

.page-products .prod-hero__actions {
  margin-top: clamp(22px, 3vw, 32px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .prod-figures {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .prod-figure {
  background: var(--ink);
  padding: 16px 18px;
}

.page-products .prod-figure--wide {
  grid-column: 1 / -1;
  background: linear-gradient(120deg, var(--ink) 0%, rgba(30, 77, 107, .55) 100%);
}

.page-products .prod-figure dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--silver);
}

.page-products .prod-figure dd {
  margin: 8px 0 0;
  display: flex;
  align-items: baseline;
  gap: 3px;
}

.page-products .prod-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-products .prod-num--sm {
  font-size: clamp(15px, 1.9vw, 20px);
  color: var(--orange);
}

.page-products .prod-suffix {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--silver);
}

/* ---------- 主栅格 ---------- */

.page-products .prod-shell {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  padding-top: clamp(28px, 4.6vw, 68px);
}

.page-products .prod-rail {
  background: var(--ink);
  border: 1px solid var(--line);
  padding: 18px 16px;
}

.page-products .prod-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--silver);
}

.page-products .prod-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .prod-rail__list li {
  flex: 0 0 auto;
}

.page-products .prod-rail__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 13px;
  border: 1px solid var(--line);
  color: var(--white);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}

.page-products .prod-rail__code {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--cyan);
}

.page-products .prod-rail__name {
  font-size: 14px;
}

.page-products .prod-rail__list a:hover,
.page-products .prod-rail__list a:focus-visible {
  border-color: var(--cyan);
  background: rgba(53, 240, 208, .09);
}

.page-products .prod-rail__note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--txt-58);
}

.page-products .prod-stream {
  display: flex;
  flex-direction: column;
  gap: clamp(42px, 6vw, 88px);
  min-width: 0;
}

/* ---------- 区块通用 ---------- */

.page-products .prod-block {
  min-width: 0;
  scroll-margin-top: 96px;
}

.page-products .prod-block__title {
  margin: 0;
  max-width: 24ch;
  font-size: clamp(23px, 3.2vw, 36px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-products .prod-block__intro {
  margin: 14px 0 0;
  max-width: 58ch;
  color: var(--txt-72);
}

.page-products .prod-block__head {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

/* ---------- 媒体 ---------- */

.page-products .media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink);
  overflow: hidden;
}

.page-products .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .media__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--silver);
}

/* ---------- 版本系列 ---------- */

.page-products .prod-series {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .prod-series__item {
  display: grid;
  gap: 12px;
  padding: clamp(18px, 2.6vw, 28px) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 104px;
}

.page-products .prod-series__id {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-products .prod-series__code {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-products .prod-series__name {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-products .prod-series__item:nth-child(1) .prod-series__code {
  color: var(--cyan);
}

.page-products .prod-series__item:nth-child(2) .prod-series__code {
  color: var(--violet);
}

.page-products .prod-series__item:nth-child(3) .prod-series__code {
  color: var(--orange);
}

.page-products .prod-series__item:nth-child(4) .prod-series__code {
  color: var(--silver);
}

.page-products .prod-series__body p {
  margin: 0;
  color: var(--txt-72);
  max-width: 62ch;
}

.page-products .prod-series__meta {
  margin-top: 10px !important;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--silver) !important;
}

/* ---------- 三步路径 ---------- */

.page-products .prod-steps {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .prod-step {
  position: relative;
  padding: clamp(20px, 2.6vw, 28px);
  background: linear-gradient(158deg, var(--ink) 0%, rgba(7, 26, 51, .92) 100%);
  border: 1px solid var(--line);
  border-top: 2px solid var(--prod-edge);
}

.page-products .prod-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-products .prod-step h3 {
  margin: 14px 0 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-products .prod-step p {
  margin: 10px 0 0;
  font-size: 15px;
  color: var(--txt-72);
}

.page-products .prod-path {
  display: none;
}

.page-products .prod-steps__media {
  margin-top: clamp(24px, 3.6vw, 40px);
}

/* ---------- 奶油纸章节 ---------- */

.page-products .prod-block--paper {
  background: var(--paper);
  color: var(--brown);
  padding: clamp(22px, 3.6vw, 46px);
  border: 1px solid var(--brown);
  box-shadow: 7px 7px 0 var(--prod-shadow);
}

.page-products .prod-block--paper .prod-block__title {
  color: var(--brown);
}

.page-products .prod-block--paper .prod-block__intro {
  color: rgba(36, 30, 26, .76);
}

.page-products .prod-cycle {
  margin: clamp(22px, 3.2vw, 34px) 0 0;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--brown);
}

.page-products .prod-cycle__cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(36, 30, 26, .22);
}

.page-products .prod-cycle__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(36, 30, 26, .62);
}

.page-products .prod-cycle__v {
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--brown);
}

.page-products .prod-weekly__media {
  margin-top: clamp(22px, 3.2vw, 34px);
  border-color: rgba(36, 30, 26, .75);
}

.page-products .prod-block--paper .media__caption {
  background: var(--paper);
  border-color: rgba(36, 30, 26, .35);
  color: rgba(36, 30, 26, .72);
}

.page-products .prod-weekly__note {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 62ch;
  color: rgba(36, 30, 26, .82);
}

.page-products .prod-weekly__axis {
  margin-top: clamp(20px, 3vw, 30px);
  border-color: rgba(36, 30, 26, .75);
}

/* ---------- 条目页结构 ---------- */

.page-products .prod-entry {
  margin-top: clamp(22px, 3.4vw, 36px);
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

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

.page-products .prod-entry__row {
  padding: 15px 0 15px 16px;
  border-left: 2px solid var(--steel);
  border-bottom: 1px solid var(--line);
  transition: border-left-color .25s var(--ease);
}

.page-products .prod-entry__row:hover {
  border-left-color: var(--cyan);
}

.page-products .prod-entry__key {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-products .prod-entry__row dd {
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--txt-72);
  max-width: 62ch;
}

.page-products .prod-entry__row dd a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .prod-mark {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--sea);
  font-size: 11px;
  font-weight: 700;
  cursor: help;
}

.page-products .prod-mark__tip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  width: 230px;
  padding: 10px 12px;
  transform: translateX(-50%) translateY(6px);
  background: var(--sea);
  border: 1px solid var(--cyan);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.6;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
  z-index: 4;
}

.page-products .prod-mark:hover .prod-mark__tip,
.page-products .prod-mark:focus-visible .prod-mark__tip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.page-products .prod-entry__media {
  border-color: var(--line);
}

/* ---------- 换设备 ---------- */

.page-products .prod-block--switch {
  border-left: 3px solid var(--violet);
  padding-left: clamp(16px, 2.6vw, 28px);
}

.page-products .prod-switch {
  list-style: none;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 0;
}

.page-products .prod-switch li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: clamp(12px, 2.2vw, 26px);
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-switch__idx {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--violet);
}

.page-products .prod-switch p {
  margin: 0;
  color: var(--txt-72);
  max-width: 60ch;
}

.page-products .prod-switch a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 三个入口 ---------- */

.page-products .prod-doors {
  margin-top: clamp(24px, 3.6vw, 40px);
  display: grid;
  gap: 14px;
}

.page-products .prod-door {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 28px);
  background: linear-gradient(158deg, var(--ink) 0%, var(--sea) 100%);
  border: 1px solid var(--line);
  border-top: 2px solid var(--steel);
  color: var(--white);
  text-decoration: none;
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}

.page-products .prod-door:hover,
.page-products .prod-door:focus-visible {
  border-top-color: var(--orange);
  border-color: var(--cyan);
  transform: translateY(-3px);
}

.page-products .prod-door__label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-products .prod-door p {
  margin: 0;
  font-size: 15px;
  color: var(--txt-72);
}

.page-products .prod-door__go {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-products .prod-figures {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .prod-cycle__cell {
    border-bottom: 0;
    border-right: 1px solid rgba(36, 30, 26, .22);
    padding: 16px 18px 16px 0;
  }

  .page-products .prod-cycle__cell:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-products .prod-cycle__cell:not(:first-child) {
    padding-left: 18px;
  }
}

@media (min-width: 720px) {
  .page-products .prod-series__item {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(20px, 3vw, 44px);
  }

  .page-products .prod-series__id {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

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

@media (min-width: 780px) {
  .page-products .prod-block__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    align-items: start;
  }

  .page-products .prod-block--paper .prod-block__head {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 860px) {
  .page-products .prod-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }

  .page-products .prod-step:nth-child(2) {
    margin-top: 26px;
  }

  .page-products .prod-step:nth-child(3) {
    margin-top: 52px;
  }

  .page-products .prod-path {
    display: block;
    width: 100%;
    height: 58px;
    margin-top: 18px;
  }
}

@media (min-width: 960px) {
  .page-products .prod-shell {
    grid-template-columns: var(--prod-rail) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 68px);
  }

  .page-products .prod-rail {
    position: sticky;
    top: 92px;
    align-self: start;
    padding: 22px 18px;
  }

  .page-products .prod-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }

  .page-products .prod-rail__list a {
    border: 0;
    border-left: 2px solid var(--steel);
    padding: 12px 10px 12px 14px;
    width: 100%;
  }

  .page-products .prod-rail__list a:hover,
  .page-products .prod-rail__list a:focus-visible {
    border-left-color: var(--cyan);
  }
}

@media (min-width: 1024px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    align-items: end;
    gap: clamp(32px, 4vw, 64px);
  }
}

@media (min-width: 1100px) {
  .page-products .prod-entry {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-door,
  .page-products .prod-door:hover,
  .page-products .prod-door:focus-visible {
    transform: none;
  }

  .page-products .prod-mark__tip {
    transition: none;
  }
}
</main>