.page-products {
  --pp-radius: 3px 26px 3px 26px;
  --pp-pad: 24px;
  background: var(--paper);
  padding-bottom: 84px;
}

/* ── 首屏 ───────────────────────────────── */
.page-products .ph {
  position: relative;
  overflow: hidden;
  background: var(--deep);
  color: var(--paper);
  padding: 28px 0 62px;
  border-bottom: 3px solid var(--cinnabar);
}
.page-products .ph::before,
.page-products .ph::after {
  content: "";
  position: absolute;
  pointer-events: none;
}
.page-products .ph::before {
  right: -16%;
  top: -32%;
  width: 620px;
  height: 620px;
  background: radial-gradient(closest-side, rgba(46, 90, 73, .78), rgba(46, 90, 73, 0) 72%);
}
.page-products .ph::after {
  left: -12%;
  bottom: -62%;
  width: 540px;
  height: 540px;
  background: radial-gradient(closest-side, rgba(196, 61, 43, .3), rgba(196, 61, 43, 0) 70%);
}
.page-products .ph > .wrap {
  position: relative;
  z-index: 1;
}

.page-products .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
}
.page-products .crumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}
.page-products .crumbs li + li::before {
  content: "/";
  color: rgba(247, 242, 232, .34);
}
.page-products .crumbs a {
  color: rgba(247, 242, 232, .68);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-products .crumbs a:hover {
  color: var(--paper);
  border-bottom-color: var(--cinnabar);
}
.page-products .crumbs [aria-current="page"] {
  color: var(--sand);
}

.page-products .ph__grid {
  display: grid;
  gap: 38px;
}
.page-products .ph h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.16;
  letter-spacing: -.01em;
}
.page-products .ph .kicker {
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sand);
}
.page-products .ph .lead {
  margin: 20px 0 0;
  max-width: 52ch;
  font-size: 16.5px;
  line-height: 1.9;
  color: rgba(247, 242, 232, .76);
}
.page-products .ph__note {
  margin: 20px 0 0;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: rgba(247, 242, 232, .48);
}
.page-products .ph__act {
  margin: 28px 0 0;
}
.page-products .ph .btn--ghost {
  border-color: rgba(247, 242, 232, .32);
  color: var(--paper);
}
.page-products .ph .btn--ghost:hover {
  border-color: var(--cinnabar);
  color: var(--paper);
}

/* 状态面板 */
.page-products .statpanel {
  border: 1px solid rgba(247, 242, 232, .16);
  border-radius: var(--pp-radius);
  background: rgba(247, 242, 232, .05);
  padding: 6px 4px 4px;
}
.page-products .statpanel__head {
  margin: 0;
  padding: 10px 16px 12px;
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(247, 242, 232, .42);
}
.page-products .statpanel__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 16px;
  border-top: 1px dashed rgba(247, 242, 232, .13);
}
.page-products .statpanel__label {
  font-size: 13px;
  color: rgba(247, 242, 232, .58);
}
.page-products .statpanel__value {
  font-size: 14.5px;
  color: var(--paper);
  letter-spacing: .02em;
}
.page-products .statpanel__value--sand {
  color: var(--sand);
}
.page-products .statpanel__value--bronze {
  color: var(--bronze-light);
}

/* ── 布局骨架 ───────────────────────────── */
.page-products .layout {
  display: grid;
  grid-template-columns: 1fr;
  row-gap: 18px;
  margin-top: 52px;
}

.page-products .rail__title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mist);
}
.page-products .rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}
.page-products .rail__link {
  display: block;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-2);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}
.page-products .rail__link:hover {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}
.page-products .rail__link.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

/* ── 章节基底 ───────────────────────────── */
.page-products .section {
  padding: var(--pp-pad);
  border: 1px solid transparent;
  border-radius: var(--pp-radius);
}
.page-products .section--paper {
  background: var(--paper);
  border-color: var(--line);
}
.page-products .section--stone {
  background: var(--stone);
  border-color: rgba(17, 16, 14, .06);
}
.page-products .section--ink {
  background: var(--deep);
  border-color: rgba(247, 242, 232, .1);
}
.page-products .section h2 {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(23px, 4.6vw, 33px);
  line-height: 1.28;
  letter-spacing: -.005em;
  color: var(--ink);
}
.page-products .section--ink h2 {
  color: var(--paper);
}
.page-products .section .kicker {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--bronze);
}
.page-products .section--ink .kicker {
  color: var(--sand);
}
.page-products .section p {
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-2);
}
.page-products .section--ink p {
  color: rgba(247, 242, 232, .76);
}
.page-products .note-line {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 13.5px;
  color: var(--bronze);
}

/* ── 图文分栏 ───────────────────────────── */
.page-products .psplit {
  display: grid;
  gap: 30px;
  align-items: center;
}
.page-products .figure {
  margin: 0;
}
.page-products .figure__frame {
  overflow: hidden;
  border: 1px solid rgba(17, 16, 14, .08);
  border-radius: var(--pp-radius);
  background: var(--paper);
}
.page-products .figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-products .figure__caption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}
.page-products .figure--wide {
  margin: 26px 0 6px;
}

/* ── 要点列表 ───────────────────────────── */
.page-products .plist {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}
.page-products .plist li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-2);
}
.page-products .plist .mono {
  flex: 0 0 76px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--bronze);
}

/* ── 编号条目 ───────────────────────────── */
.page-products .entries {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}
.page-products .entries li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
}
.page-products .entries li:last-child {
  border-bottom: 1px solid var(--line-soft);
}
.page-products .entries__no {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--sand);
}
.page-products .entries h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-size: 17.5px;
  font-weight: 700;
  color: var(--ink);
}
.page-products .entries p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
}

/* ── 资料库手风琴 ───────────────────────── */
.page-products .libwrap {
  display: grid;
  gap: 34px;
}
.page-products .liblist {
  margin-top: 4px;
  border-top: 1px solid var(--line);
}
.page-products .libentry {
  border-bottom: 1px solid var(--line);
}
.page-products .libentry > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
}
.page-products .libentry > summary::-webkit-details-marker {
  display: none;
}
.page-products .libentry__no {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--sand);
}
.page-products .libentry__name {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  transition: color .2s var(--ease);
}
.page-products .libentry > summary:hover .libentry__name {
  color: var(--cinnabar);
}
.page-products .libentry > summary .tag {
  margin-left: auto;
}
.page-products .libentry > summary::after {
  content: "+";
  flex: 0 0 16px;
  font-family: var(--mono);
  font-size: 15px;
  text-align: center;
  color: var(--mist);
  transition: color .2s var(--ease);
}
.page-products .libentry[open] > summary::after {
  content: "\2212";
  color: var(--cinnabar);
}
.page-products .libentry__body {
  padding: 0 30px 20px 42px;
}
.page-products .libentry__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
}
.page-products .tag {
  display: inline-block;
  padding: 3px 9px;
  border: 1px solid var(--bronze-light);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--bronze);
  white-space: nowrap;
}

/* ── 记录卡片序列 ───────────────────────── */
.page-products .recs {
  display: grid;
  gap: 14px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.page-products .recs .card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  background: var(--paper);
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}
.page-products .recs .card:hover {
  transform: translateY(-3px);
  border-color: var(--cinnabar);
}
.page-products .card__kicker {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--bronze);
}
.page-products .card__title {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}
.page-products .card__meta {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ── 换机步骤 ───────────────────────────── */
.page-products .steps {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.page-products .steps__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 18px;
  padding: 22px 0;
  border-top: 1px solid rgba(247, 242, 232, .13);
}
.page-products .steps__item:last-child {
  border-bottom: 1px solid rgba(247, 242, 232, .13);
}
.page-products .steps__no {
  font-size: 19px;
  line-height: 1.1;
  color: var(--cinnabar);
}
.page-products .steps__title {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}
.page-products .steps__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
}
.page-products .section--ink .figure__frame {
  border-color: rgba(247, 242, 232, .16);
  background: rgba(247, 242, 232, .06);
}
.page-products .section--ink .figure__caption {
  color: rgba(247, 242, 232, .48);
}

/* ── 下载与进入 ─────────────────────────── */
.page-products .section--exit {
  border-color: rgba(196, 61, 43, .35);
  box-shadow: inset 0 0 0 1px rgba(213, 163, 63, .16);
}
.page-products .dl {
  display: grid;
  gap: 30px;
}
.page-products .dl__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.page-products .dl__actions .btn--primary {
  border-bottom: 2px solid transparent;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}
.page-products .dl__actions .btn--primary:hover {
  border-bottom-color: var(--cinnabar-deep);
}
.page-products .dl__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 24px 0 0;
}
.page-products .dl__links a {
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 13.5px;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-products .dl__links a:hover {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

.page-products .exitpanel {
  align-self: start;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  background: var(--stone);
}
.page-products .exitpanel__head {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--bronze);
}
.page-products .exitpanel__list {
  margin: 0;
  padding: 0;
}
.page-products .exitpanel__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-top: 1px solid rgba(17, 16, 14, .09);
}
.page-products .exitpanel__row dt {
  font-size: 13px;
  color: var(--ink-2);
}
.page-products .exitpanel__row dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  text-align: right;
}
.page-products .exitpanel__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(17, 16, 14, .16);
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ── 响应式 ─────────────────────────────── */
@media (min-width: 700px) {
  .page-products {
    --pp-pad: 34px;
  }
  .page-products .ph {
    padding: 34px 0 74px;
  }
  .page-products .recs {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

@media (min-width: 880px) {
  .page-products .psplit {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 48px;
  }
  .page-products .ph__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
    gap: 56px;
    align-items: end;
  }
  .page-products .libwrap {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 44px;
    align-items: start;
  }
  .page-products .dl {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-products {
    --pp-pad: 46px;
  }
  .page-products .layout {
    grid-template-columns: 190px minmax(0, 1fr);
    column-gap: 54px;
    row-gap: 20px;
  }
  .page-products .rail {
    grid-column: 1;
    grid-row: 1 / span 99;
    position: sticky;
    top: 94px;
    align-self: start;
  }
  .page-products .rail__list {
    display: block;
    margin-bottom: 0;
  }
  .page-products .rail__link {
    padding: 10px 0 10px 14px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    background: transparent;
    white-space: normal;
  }
  .page-products .rail__link:hover {
    border-left-color: var(--cinnabar);
    color: var(--cinnabar);
  }
  .page-products .rail__link.is-active {
    background: transparent;
    border-left-color: var(--cinnabar);
    color: var(--ink);
    font-weight: 600;
  }
  .page-products .layout > .section {
    grid-column: 2;
  }
}