.page-products {
  --pp-gap: clamp(16px, 2.4vw, 30px);
  --pp-card-bg: var(--ink-800);
  --pp-card-bg-hover: var(--ink-750);
  --pp-text-soft: rgba(232, 238, 244, 0.76);
  --pp-text-mute: rgba(232, 238, 244, 0.56);
  background: var(--ink-900);
  color: var(--mist);
  padding-bottom: var(--sec-y);
}

/* ---------- 首屏 ---------- */

.page-products .page-head {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + clamp(30px, 6vw, 72px)) 0 clamp(30px, 5vw, 58px);
}

.page-products .page-head::after {
  content: "";
  position: absolute;
  z-index: 0;
  right: -14%;
  bottom: -24%;
  width: 60%;
  height: 132%;
  background: var(--ink-800);
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-products .page-head > .shell {
  position: relative;
  z-index: 1;
}

.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--slate);
}

.page-products .breadcrumb a {
  color: var(--slate);
  text-decoration: none;
  transition: color 0.18s ease;
}

.page-products .breadcrumb a:hover {
  color: var(--cyan);
}

.page-products .page-head .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-products .page-head__title {
  margin: 16px 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.2vw, 74px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: #ffffff;
}

.page-products .page-head__lede {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.7vw, 17.5px);
  line-height: 1.8;
  color: rgba(232, 238, 244, 0.82);
}

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

.page-products .page-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.page-products .page-head__meta li {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-products .page-head__meta strong {
  color: var(--cyan);
  font-weight: 600;
}

/* ---------- 图像容器 ---------- */

.page-products .pp-visual {
  position: relative;
  margin: clamp(22px, 3.2vw, 36px) 0 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
}

.page-products .pp-visual--hero {
  margin-top: clamp(18px, 3vw, 32px);
}

.page-products .pp-visual--wide,
.page-products .pp-visual--tall {
  margin-top: clamp(20px, 3vw, 32px);
}

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

.page-products .pp-visual--hero img {
  aspect-ratio: 24 / 9;
}

.page-products .pp-visual--wide img {
  aspect-ratio: 5 / 3;
}

.page-products .pp-visual--tall img {
  aspect-ratio: 4 / 3;
}

.page-products .pp-visual__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--slate);
  background: var(--ink-900);
}

/* ---------- 左轨 + 画布 ---------- */

.page-products .split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
  padding-top: clamp(28px, 4.5vw, 56px);
}

.page-products .rail {
  min-width: 0;
}

.page-products .rail-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  background: var(--ink-800);
}

.page-products .rail-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-products .rail-card__ver {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 46px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-products .rail-card__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pp-text-mute);
}

.page-products .rail-facts {
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 10px;
}

.page-products .rail-fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-products .rail-fact dt {
  font-size: 13px;
  color: var(--slate);
}

.page-products .rail-fact dd {
  margin: 0;
  font-size: 13.5px;
  color: var(--mist);
}

.page-products .rail-toc {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-products .rail-toc__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

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

.page-products .toc-link {
  display: block;
  padding: 7px 11px;
  border: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.page-products .toc-link:hover {
  color: var(--cyan);
  border-color: var(--line-strong);
}

.page-products .toc-link.is-active {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
  font-weight: 600;
}

/* ---------- 章节骨架 ---------- */

.page-products .canvas {
  min-width: 0;
}

.page-products .pp-sec {
  padding-bottom: clamp(36px, 5vw, 64px);
  margin-bottom: clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-products .pp-sec:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .pp-sec__num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .pp-sec__title {
  margin: 0;
  max-width: 24ch;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 40px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.005em;
  color: #ffffff;
}

.page-products .pp-sec__lede {
  margin: 16px 0 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--pp-text-soft);
}

.page-products .pp-sub {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #ffffff;
}

.page-products .pp-sub--spaced {
  margin-top: clamp(28px, 3.6vw, 40px);
}

.page-products .pp-text {
  margin: 14px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pp-text-soft);
}

.page-products .pp-text--spaced {
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .pp-text--muted {
  color: var(--pp-text-mute);
  font-size: 14.5px;
}

.page-products .pp-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-products .pp-inline-link:hover {
  color: #ffffff;
  border-bottom-color: #ffffff;
}

/* ---------- 功能矩阵 ---------- */

.page-products .matrix {
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-products .filter-btn {
  padding: 8px 15px;
  border: 1px solid var(--line);
  background: transparent;
  font-family: var(--font-body);
  font-size: 13.5px;
  color: var(--slate);
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

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

.page-products .filter-btn.is-active {
  background: var(--orange);
  border-color: var(--orange);
  color: #12100e;
  font-weight: 600;
}

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

.page-products .mod-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 196px;
  padding: clamp(18px, 2.2vw, 24px);
  background: var(--pp-card-bg);
  transition: background 0.2s ease;
}

.page-products .mod-card:hover {
  background: var(--pp-card-bg-hover);
}

.page-products .mod-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .mod-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-products .mod-card__title {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2vw, 22px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #ffffff;
}

.page-products .mod-card__text {
  flex: 1 1 auto;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--pp-text-soft);
}

.page-products .mod-card__link {
  align-self: flex-start;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-products .mod-card__link:hover {
  color: #ffffff;
  border-bottom-color: #ffffff;
}

/* ---------- 入口与登录 ---------- */

.page-products .pp-duo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .pp-duo .pp-visual {
  margin-top: 0;
}

.page-products .steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(16px, 2vw, 22px);
  background: var(--ink-900);
}

.page-products .step__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--orange);
}

.page-products .step__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  color: #ffffff;
}

.page-products .step__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--pp-text-soft);
}

/* ---------- 赛事数据 ---------- */

.page-products .stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(22px, 3vw, 32px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .stat-cell {
  padding: 20px 18px;
  background: var(--ink-800);
}

.page-products .stat-cell__val {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(21px, 2.6vw, 28px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.page-products .stat-cell__label {
  display: block;
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
}

.page-products .split-two {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(24px, 3.4vw, 36px);
}

.page-products .split-two .pp-visual {
  margin-top: 0;
}

.page-products .dim-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .dim {
  padding: clamp(16px, 2vw, 20px);
  background: var(--ink-800);
}

.page-products .dim__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  color: #ffffff;
}

.page-products .dim__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--pp-text-soft);
}

.page-products .table-wrap {
  margin-top: 16px;
  overflow-x: auto;
  border: 1px solid var(--line);
}

.page-products .data-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-products .data-table th,
.page-products .data-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .data-table thead th {
  background: var(--ink-800);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--slate);
}

.page-products .data-table tbody th {
  font-weight: 600;
  color: var(--cyan);
}

.page-products .data-table tbody td {
  color: var(--pp-text-soft);
}

.page-products .data-table tbody tr:last-child th,
.page-products .data-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .data-table tbody tr:hover td,
.page-products .data-table tbody tr:hover th {
  background: rgba(0, 229, 199, 0.07);
}

/* ---------- 测试版 ---------- */

.page-products .beta-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(10px, 2vw, 18px);
}

.page-products .beta-wrap .pp-visual {
  margin-top: 0;
}

.page-products .faq-list {
  border-top: 1px solid var(--line);
}

.page-products .faq-a__inner {
  color: var(--pp-text-soft);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 更新节奏 ---------- */

.page-products .timeline {
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0 0 0 24px;
  list-style: none;
  border-left: 1px solid var(--line);
  display: grid;
  gap: clamp(22px, 3vw, 30px);
}

.page-products .tl-item {
  position: relative;
}

.page-products .tl-item::before {
  content: "";
  position: absolute;
  top: 8px;
  left: -29px;
  width: 9px;
  height: 9px;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 199, 0.14);
}

.page-products .tl-item:nth-child(4)::before {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 44, 0.16);
}

.page-products .tl-ver {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-products .tl-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  color: #ffffff;
}

.page-products .tl-text {
  margin: 8px 0 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--pp-text-soft);
}

/* ---------- 场景入口 ---------- */

.page-products .scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(22px, 3vw, 32px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .scene {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 2.2vw, 24px);
  background: var(--ink-800);
  color: inherit;
  text-decoration: none;
  transition: background 0.2s ease;
}

.page-products .scene:hover {
  background: var(--pp-card-bg-hover);
}

.page-products .scene__tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-products .scene__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.35;
  color: #ffffff;
}

.page-products .scene__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--pp-text-soft);
}

.page-products .scene::after {
  content: "→";
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */

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

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

@media (min-width: 900px) {
  .page-products .stat-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-products .pp-duo,
  .page-products .split-two,
  .page-products .beta-wrap {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-products .split {
    grid-template-columns: var(--rail) minmax(0, 1fr);
  }

  .page-products .rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    max-height: calc(100vh - var(--header-h) - 40px);
    overflow-y: auto;
    scrollbar-width: thin;
  }

  .page-products .toc-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-products .toc-link {
    padding: 10px 12px;
    border: 0;
    border-left: 1px solid var(--line);
  }

  .page-products .toc-link.is-active {
    background: transparent;
    border-left-color: var(--cyan);
    color: var(--cyan);
  }
}

@media (min-width: 1180px) {
  .page-products .matrix__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .matrix__grid > .mod-card:nth-child(2),
  .page-products .matrix__grid > .mod-card:nth-child(6) {
    margin-top: 26px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-products .mod-card,
  .page-products .scene,
  .page-products .toc-link,
  .page-products .filter-btn,
  .page-products .mod-card__link,
  .page-products .pp-inline-link {
    transition: none;
  }
}