.page-products {
  --pf-line: var(--trench);
  background: var(--abyss);
  color: var(--text-on-dark);
  font-family: var(--font-sans);
  padding-bottom: 0;
  overflow-x: hidden;
}

.page-products .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 13px;
  color: var(--mist);
  letter-spacing: .02em;
}

.page-products .breadcrumb__link {
  color: var(--data);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-products .breadcrumb__link:hover,
.page-products .breadcrumb__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 首屏 ---------- */

.page-products .pf-hero {
  display: grid;
  gap: 32px;
  padding: 28px 0 56px;
}

.page-products .pf-hero__title {
  margin: 14px 0 0;
  font-size: 30px;
  line-height: 1.22;
  letter-spacing: -.01em;
  font-weight: 900;
}

.page-products .pf-hero__lede {
  margin: 20px 0 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--data);
}

.page-products .pf-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .pf-toc-panel {
  align-self: start;
  background: var(--dive);
  border: 1px solid var(--pf-line);
  padding: 22px 22px 14px;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-products .pf-toc-panel__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-products .pf-toc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .pf-toc a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 10px 2px;
  font-size: 15px;
  color: var(--text-on-dark);
  text-decoration: none;
  border-bottom: 1px dashed var(--trench);
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-products .pf-toc li:last-child a {
  border-bottom: 0;
}

.page-products .pf-toc a:hover,
.page-products .pf-toc a:focus-visible {
  color: var(--cyan);
  padding-left: 6px;
}

.page-products .pf-toc .mono {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan-deep);
}

.page-products .pf-toc a:hover .mono {
  color: var(--cyan);
}

/* ---------- 章节外壳 ---------- */

.page-products .pf-section {
  padding: 52px 0;
  border-top: 1px solid var(--pf-line);
}

.page-products .pf-section--dive {
  background: var(--dive);
}

.page-products .pf-section--last {
  padding-bottom: 64px;
}

.page-products .pf-head {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  margin-bottom: 28px;
}

.page-products .pf-num {
  font-size: 13px;
  line-height: 1.9;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-products .pf-head__title {
  margin: 6px 0 0;
  font-size: 24px;
  line-height: 1.3;
  letter-spacing: -.01em;
  font-weight: 900;
}

.page-products .pf-split {
  display: grid;
  gap: 28px;
}

.page-products .pf-split__text p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--data);
}

.page-products .pf-split__text p:last-of-type {
  margin-bottom: 0;
}

.page-products .pf-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-deep);
  padding-bottom: 1px;
}

.page-products .pf-inline-link:hover,
.page-products .pf-inline-link:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 图片容器 ---------- */

.page-products .pf-figure {
  margin: 0;
  border: 1px solid var(--pf-line);
  background: linear-gradient(155deg, #0e2c47 0%, #05121f 72%);
}

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

.page-products .pf-figure--slab {
  margin-top: 28px;
  border-color: #cfdcea;
  background: linear-gradient(155deg, #dbe7f2 0%, #f4f7fa 76%);
}

/* ---------- 要点列表 ---------- */

.page-products .pf-facts {
  list-style: none;
  margin: 24px 0 0;
  padding: 0 0 0 16px;
  display: grid;
  gap: 9px;
  border-left: 2px solid var(--cyan-deep);
}

.page-products .pf-facts li {
  font-size: 14px;
  line-height: 1.65;
  color: var(--data);
}

.page-products .pf-facts .mono {
  color: var(--cyan);
  font-size: 15px;
  margin-right: 4px;
}

/* ---------- 筛选器 ---------- */

.page-products .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 32px 0 22px;
  padding-top: 24px;
  border-top: 1px dashed var(--trench);
}

.page-products .filter-btn {
  appearance: none;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  padding: 9px 16px;
  background: transparent;
  color: var(--data);
  border: 1px solid var(--trench);
  border-left: 3px solid transparent;
  border-radius: 0;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-products .filter-btn:hover {
  color: var(--cyan);
  border-color: var(--cyan-deep);
  border-left-color: var(--cyan-deep);
}

.page-products .filter-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .filter-btn[aria-pressed="true"] {
  color: var(--cyan);
  background: rgba(37, 245, 214, .09);
  border-color: var(--cyan-deep);
  border-left-color: var(--cyan);
}

/* ---------- 结果卡 ---------- */

.page-products .pf-results {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pf-card {
  background: var(--dive);
  border: 1px solid var(--trench);
  border-top: 2px solid var(--cyan-deep);
  padding: 18px 20px 20px;
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-products .pf-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-products .pf-card__round {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-products .pf-card__teams {
  margin: 0 0 16px;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--text-on-dark);
}

.page-products .pf-card__teams span {
  font-size: 12px;
  font-weight: 500;
  color: var(--mist);
  padding: 0 5px;
}

.page-products .pf-card__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--trench);
}

.page-products .pf-card__meta dt {
  margin: 0;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-products .pf-card__meta dd {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--data);
}

.page-products .empty-state {
  margin: 24px 0 0;
  padding: 40px 24px;
  text-align: center;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
  border: 1px dashed var(--trench);
  background: rgba(11, 34, 57, .55);
}

/* ---------- 纸白对比章节 ---------- */

.page-products .pf-slab {
  background: var(--paper);
  color: var(--text-on-light);
  border-top-color: #d7e2ec;
  border-bottom: 1px solid #d7e2ec;
}

.page-products .pf-slab .pf-num {
  color: var(--cyan-deep);
}

.page-products .pf-slab .eyebrow {
  color: var(--cyan-deep);
}

.page-products .pf-slab .pf-head__title {
  color: var(--text-on-light);
}

.page-products .pf-slab__lede {
  margin: 0 0 28px;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.8;
  color: #33475c;
}

.page-products .pf-nine {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pf-nine__item {
  position: relative;
  padding: 20px 18px 22px;
  background: #ffffff;
  border: 1px solid #d8e3ee;
  border-left: 3px solid transparent;
  transition: border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}

.page-products .pf-nine__item:hover,
.page-products .pf-nine__item:focus-within {
  border-color: var(--cyan-deep);
  border-left-color: var(--cyan);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(5, 18, 31, .1);
}

.page-products .pf-nine__num {
  display: block;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan-deep);
  margin-bottom: 8px;
}

.page-products .pf-nine__item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--text-on-light);
}

.page-products .pf-nine__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: #46586b;
}

.page-products .pf-compare-note {
  margin-top: 24px;
  padding: 22px 20px;
  background: #e7eef6;
  border-left: 3px solid var(--cyan-deep);
}

.page-products .pf-compare-note h3 {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-on-light);
}

.page-products .pf-compare-note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: #33475c;
}

/* ---------- 轮次时间轴 ---------- */

.page-products .pf-timeline {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
}

.page-products .pf-timeline__item {
  position: relative;
  padding-left: 34px;
}

.page-products .pf-timeline__item::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 26px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan-deep), rgba(15, 168, 147, 0));
}

.page-products .pf-timeline__item:last-child::before {
  display: none;
}

.page-products .pf-timeline summary {
  position: static;
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--trench);
}

.page-products .pf-timeline summary::-webkit-details-marker {
  display: none;
}

.page-products .pf-timeline summary::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 20px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  background: var(--abyss);
}

.page-products .pf-timeline details[open] > summary::before {
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(37, 245, 214, .55);
}

.page-products .pf-timeline summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .pf-timeline__round {
  font-size: 15px;
  color: var(--text-on-dark);
  letter-spacing: .04em;
}

.page-products .pf-timeline__hint {
  font-size: 12px;
  color: var(--mist);
}

.page-products .pf-timeline details[open] .pf-timeline__hint {
  color: var(--cyan);
}

.page-products .pf-timeline__body {
  list-style: none;
  margin: 0;
  padding: 14px 0 20px;
  display: grid;
  gap: 10px;
}

.page-products .pf-timeline__body li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--data);
}

.page-products .pf-timeline__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--cyan-deep);
}

/* ---------- 胶囊标签 ---------- */

.page-products .pf-chip-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pf-chip-list li {
  padding: 7px 13px;
  font-size: 13px;
  color: var(--data);
  border: 1px solid var(--trench);
  background: rgba(37, 245, 214, .05);
}

/* ---------- 阅读辅助 ---------- */

.page-products .pf-aid {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pf-aid__item {
  padding: 20px 18px 22px;
  background: var(--dive);
  border: 1px solid var(--trench);
  border-top: 2px solid var(--cyan);
}

.page-products .pf-aid__item h3 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-on-dark);
}

.page-products .pf-aid__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 下一步 ---------- */

.page-products .pf-next {
  padding: 56px 0 72px;
  border-top: 1px solid var(--pf-line);
}

.page-products .pf-next__title {
  margin: 8px 0 24px;
  font-size: 22px;
  line-height: 1.35;
  font-weight: 900;
}

.page-products .pf-next__links {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pf-next__link {
  display: block;
  padding: 18px 20px;
  font-size: 15px;
  color: var(--text-on-dark);
  text-decoration: none;
  background: var(--dive);
  border: 1px solid var(--trench);
  border-left: 3px solid var(--cyan-deep);
  transition: border-color .22s var(--ease), color .22s var(--ease), transform .22s var(--ease);
}

.page-products .pf-next__link:hover,
.page-products .pf-next__link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  transform: translateX(4px);
}

/* ---------- 断点 ---------- */

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

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

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

@media (min-width: 900px) {
  .page-products .pf-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(270px, 1fr);
    gap: 48px;
    align-items: start;
    padding: 36px 0 64px;
  }

  .page-products .pf-hero__title {
    font-size: 44px;
  }

  .page-products .pf-hero__lede {
    font-size: 17px;
  }

  .page-products .pf-section {
    padding: 68px 0;
  }

  .page-products .pf-head {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 20px;
    margin-bottom: 34px;
  }

  .page-products .pf-num {
    font-size: 14px;
  }

  .page-products .pf-head__title {
    font-size: 36px;
  }

  .page-products .pf-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }

  .page-products .pf-split--rev {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-products .pf-split__text p {
    font-size: 16px;
  }

  .page-products .pf-nine {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

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

@media (min-width: 1080px) {
  .page-products .pf-results {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pf-aid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pf-next__title {
    font-size: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-card,
  .page-products .pf-nine__item,
  .page-products .pf-next__link,
  .page-products .pf-toc a {
    transition: none;
  }

  .page-products .pf-card:hover,
  .page-products .pf-nine__item:hover,
  .page-products .pf-next__link:hover {
    transform: none;
  }
}