.page-products {
  --pp-shell: 1200px;
  --pp-narrow: 760px;
  position: relative;
  display: block;
  background: var(--paper);
  color: var(--slate);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-products *,
.page-products *::before,
.page-products *::after {
  box-sizing: border-box;
}

.page-products [id] {
  scroll-margin-top: 96px;
}

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

.page-products a {
  color: var(--grass);
}

.page-products a:focus-visible,
.page-products summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

/* ---------- 面包屑 ---------- */
.page-products .pp-crumb {
  width: min(calc(100% - 2 * var(--gutter)), var(--pp-shell));
  margin: 0 auto;
  padding: 24px 0 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-narrow);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-products .pp-crumb a {
  text-decoration: none;
  color: var(--slate);
  border-bottom: 1px solid transparent;
}

.page-products .pp-crumb a:hover {
  border-bottom-color: var(--signal);
  color: var(--graphite);
}

.page-products .pp-crumb__sep {
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  padding-top: 28px;
}

.page-products .pp-hero__grid {
  width: min(calc(100% - 2 * var(--gutter)), var(--pp-shell));
  margin: 0 auto;
  display: grid;
  gap: 26px;
}

.page-products .pp-eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-narrow);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clay);
}

.page-products .pp-eyebrow--dark {
  color: var(--grass);
}

.page-products .pp-hero__title {
  margin: 0 0 18px;
  font-size: var(--fs-display);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--graphite);
  max-width: 18ch;
}

.page-products .pp-hero__lede {
  margin: 0 0 24px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--slate);
  max-width: 46ch;
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .pp-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-products .pp-btn--solid {
  background: var(--grass);
  color: var(--white);
}

.page-products .pp-btn--solid:hover {
  background: var(--night);
}

.page-products .pp-btn--ghost {
  border-color: var(--line-strong);
  color: var(--graphite);
}

.page-products .pp-btn--ghost:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.page-products .pp-figure {
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--white);
}

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

.page-products .pp-figure figcaption {
  padding: 9px 14px;
  border-top: 1px solid var(--line);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--slate);
}

.page-products .pp-figure--hero img {
  aspect-ratio: 16 / 9;
}

.page-products .pp-figure--wide img {
  aspect-ratio: 3 / 2;
}

.page-products .pp-figure--tall img {
  aspect-ratio: 1 / 1;
}

/* ---------- 数字条 ---------- */
.page-products .pp-stats {
  list-style: none;
  width: min(calc(100% - 2 * var(--gutter)), var(--pp-shell));
  margin: 34px auto 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  background: var(--night);
  color: var(--paper);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.page-products .pp-stat {
  padding: 18px 20px;
  border-top: 1px solid var(--line-light);
  border-left: 1px solid var(--line-light);
}

.page-products .pp-stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--paper);
  line-height: 1.2;
}

.page-products .pp-stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--on-dark);
}

/* ---------- 通用区块 ---------- */
.page-products .pp-section {
  margin-top: 68px;
}

.page-products .pp-body {
  width: min(calc(100% - 2 * var(--gutter)), var(--pp-shell));
  margin: 0 auto;
  padding-top: 36px;
}

.page-products .pp-heading {
  margin: 0 0 16px;
  font-size: var(--fs-h2);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--graphite);
}

.page-products .pp-sub {
  margin: 40px 0 16px;
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--graphite);
  letter-spacing: -0.01em;
}

.page-products .pp-lede {
  margin: 0 0 26px;
  max-width: 66ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--slate);
}

.page-products .pp-prose p {
  margin: 0 0 1.1em;
}

.page-products .pp-prose p:last-child {
  margin-bottom: 0;
}

.page-products .pp-note {
  margin: 26px 0 0;
  padding: 14px 18px;
  border-left: 3px solid var(--mist);
  background: rgba(201, 207, 212, 0.18);
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pp-note a {
  color: var(--grass);
}

/* ---------- 章节色带 ---------- */
.page-products .pp-band {
  background: var(--grass);
  color: var(--paper);
}

.page-products .pp-band--night {
  background: var(--night);
}

.page-products .pp-band--clay {
  background: var(--clay);
}

.page-products .pp-band--moss {
  background: var(--moss);
}

.page-products .pp-band__inner {
  width: min(calc(100% - 2 * var(--gutter)), var(--pp-shell));
  margin: 0 auto;
  padding: 15px 0;
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-products .pp-band__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: rgba(245, 241, 232, 0.72);
}

.page-products .pp-band__title {
  flex: 1 1 auto;
  margin: 0;
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
  line-height: 1.25;
}

.page-products .pp-band__index {
  font-family: var(--font-narrow);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(245, 241, 232, 0.6);
}

/* ---------- 表格 ---------- */
.page-products .pp-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  background: var(--white);
}

.page-products .pp-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.6;
}

.page-products .pp-table__cap {
  caption-side: top;
  padding: 12px 16px;
  text-align: left;
  font-family: var(--font-narrow);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.page-products .pp-table thead th {
  position: sticky;
  top: 78px;
  z-index: 2;
  padding: 12px 16px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--paper);
  background: var(--night);
}

.page-products .pp-table tbody td {
  padding: 15px 16px;
  vertical-align: top;
  border-top: 1px solid var(--line);
  color: var(--slate);
}

.page-products .pp-table tbody td:first-child {
  border-left: 3px solid transparent;
  font-weight: 700;
  color: var(--graphite);
}

.page-products .pp-table tbody tr:hover {
  background: rgba(255, 107, 44, 0.06);
}

.page-products .pp-table tbody tr:hover td:first-child {
  border-left-color: var(--signal);
}

.page-products .pp-table--seasons tbody td:first-child {
  font-family: var(--font-mono);
}

.page-products .pp-link {
  color: var(--grass);
  text-decoration: none;
  border-bottom: 1px solid var(--moss);
  white-space: nowrap;
}

.page-products .pp-link:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- 分栏 ---------- */
.page-products .pp-split {
  display: grid;
  gap: 26px;
  margin-bottom: 8px;
}

/* ---------- 研究板 ---------- */
.page-products .pp-panels {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.page-products .pp-panel {
  border: 1px solid var(--line-strong);
  background: var(--white);
  display: flex;
  flex-direction: column;
}

.page-products .pp-panel__title {
  margin: 0;
  padding: 14px 18px;
  background: var(--grass);
  color: var(--white);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-products .pp-panel--teal .pp-panel__title {
  background: var(--teal);
}

.page-products .pp-panel__block {
  padding: 13px 18px;
  border-top: 1px solid var(--line);
}

.page-products .pp-panel__block h4 {
  margin: 0 0 5px;
  font-family: var(--font-narrow);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clay);
}

.page-products .pp-panel__block p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
}

.page-products .pp-formula {
  display: inline-block;
  margin-bottom: 4px;
  padding: 2px 8px;
  background: var(--night);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
}

/* ---------- 指标索引 ---------- */
.page-products .pp-metrics {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
}

.page-products .pp-metric {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 11px 13px;
  border: 1px solid var(--line);
  background: var(--white);
  font-size: 14px;
  color: var(--graphite);
}

.page-products .pp-metric__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--signal);
}

/* ---------- 赛季切换 ---------- */
.page-products .pp-seasons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-products .pp-seasons__link {
  padding: 7px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: var(--white);
  color: var(--slate);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.page-products .pp-seasons__link:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.page-products .pp-seasons__link--current {
  background: var(--night);
  border-color: var(--night);
  color: var(--paper);
}

/* ---------- 签表图例 ---------- */
.page-products .pp-legend {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: 13px;
  color: var(--slate);
}

.page-products .pp-legend li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-products .pp-swatch {
  display: inline-block;
  width: 16px;
  height: 10px;
}

.page-products .pp-swatch--clay {
  background: var(--clay);
}

.page-products .pp-swatch--signal {
  background: var(--signal);
}

.page-products .pp-swatch--line {
  border-top: 2px solid var(--line-strong);
  height: 0;
}

/* ---------- 括号式签表 ---------- */
.page-products .pp-bracket {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 4px 0 8px;
}

.page-products .pp-bracket__col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .pp-node {
  position: relative;
  border: 1px solid var(--line-strong);
  background: var(--white);
  font-size: 13px;
}

.page-products .pp-node__summary {
  display: block;
  padding: 10px 12px 8px;
  cursor: pointer;
  list-style: none;
}

.page-products .pp-node__summary::-webkit-details-marker {
  display: none;
}

.page-products .pp-node__region {
  display: inline-block;
  margin-bottom: 8px;
  padding: 2px 8px;
  background: var(--clay);
  color: var(--white);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-products .pp-node__region--final {
  background: var(--signal);
}

.page-products .pp-node__line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--graphite);
  line-height: 1.6;
}

.page-products .pp-node__score {
  color: var(--signal);
  font-weight: 700;
  font-size: 14px;
}

.page-products .pp-node__hint {
  display: block;
  margin-top: 8px;
  font-family: var(--font-narrow);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-products .pp-node__hint::after {
  content: " +";
}

.page-products .pp-node[open] .pp-node__hint::after {
  content: " −";
}

.page-products .pp-node__detail {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  background: var(--paper);
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

.page-products .pp-node--final {
  border: 2px solid var(--signal);
  background: var(--night);
}

.page-products .pp-node--final .pp-node__line {
  color: var(--paper);
}

.page-products .pp-node--final .pp-node__hint {
  color: var(--signal-soft);
}

.page-products .pp-node--final .pp-node__detail {
  background: rgba(245, 241, 232, 0.08);
  border-top-color: var(--line-light);
  color: var(--on-dark);
}

/* ---------- 裁判名单卡片 ---------- */
.page-products .pp-refs {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.page-products .pp-ref {
  position: relative;
  padding: 18px 18px 16px;
  border: 1px solid var(--line-strong);
  background: var(--white);
}

.page-products .pp-ref h3 {
  margin: 0 0 12px;
  padding-right: 84px;
  font-size: 17px;
  font-weight: 700;
  color: var(--graphite);
}

.page-products .pp-ref__save {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 3px 10px;
  border: 1px solid var(--mist);
  border-radius: var(--radius-pill);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-products .pp-ref__save--on {
  border-color: var(--signal);
  color: var(--signal);
}

.page-products .pp-ref__meta {
  margin: 0;
  display: grid;
  gap: 8px;
}

.page-products .pp-ref__meta > div {
  display: grid;
  gap: 2px;
}

.page-products .pp-ref__meta dt {
  font-family: var(--font-narrow);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-products .pp-ref__meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--slate);
}

/* ---------- 取用方式 ---------- */
.page-products .pp-ways {
  display: grid;
  gap: 16px;
}

.page-products .pp-way {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--grass);
  background: var(--white);
}

.page-products .pp-way:nth-child(2) {
  border-top-color: var(--signal);
}

.page-products .pp-way:nth-child(3) {
  border-top-color: var(--teal);
}

.page-products .pp-way__idx {
  font-family: var(--font-narrow);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clay);
}

.page-products .pp-way h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--graphite);
}

.page-products .pp-way__for {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--moss);
}

.page-products .pp-way p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 专题入口 ---------- */
.page-products .pp-topics {
  margin-top: 26px;
  border-top: 1px solid var(--line-strong);
}

.page-products .pp-topic {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .pp-topic__name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--graphite);
}

.page-products .pp-topic__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pp-topic__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pp-topic__links a {
  padding: 6px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  font-size: 13px;
  text-decoration: none;
  color: var(--slate);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-products .pp-topic__links a:hover {
  border-color: var(--signal);
  color: var(--signal);
}

/* ---------- 首屏入场 ---------- */
@keyframes pp-rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-products .pp-hero__copy > * {
    animation: pp-rise 0.5s var(--ease) both;
  }
  .page-products .pp-hero__copy > *:nth-child(2) {
    animation-delay: 0.06s;
  }
  .page-products .pp-hero__copy > *:nth-child(3) {
    animation-delay: 0.12s;
  }
  .page-products .pp-hero__copy > *:nth-child(4) {
    animation-delay: 0.18s;
  }
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pp-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .pp-stat {
    border-top: none;
  }
  .page-products .pp-stat:first-child {
    border-left: none;
  }
  .page-products .pp-ways {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: end;
    gap: 40px;
  }
  .page-products .pp-split {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
    align-items: start;
    gap: 34px;
  }
  .page-products .pp-split--rev {
    grid-template-columns: minmax(0, 0.6fr) minmax(0, 1.4fr);
  }
  .page-products .pp-split--rev .pp-prose {
    padding-top: 6px;
  }
  .page-products .pp-panels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-refs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pp-topic {
    grid-template-columns: 190px minmax(0, 1fr) auto;
    align-items: center;
    gap: 24px;
  }
}

@media (min-width: 980px) {
  .page-products .pp-ways {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pp-bracket {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.12fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 0 34px;
    align-items: stretch;
  }
  .page-products .pp-bracket__col {
    justify-content: space-around;
    gap: 16px;
  }
  .page-products .pp-bracket__col--l .pp-node::after,
  .page-products .pp-bracket__col--r .pp-node::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 34px;
    height: 1px;
    background: var(--line-strong);
  }
  .page-products .pp-bracket__col--l .pp-node::after {
    left: 100%;
  }
  .page-products .pp-bracket__col--r .pp-node::after {
    right: 100%;
  }
  .page-products .pp-node--final::after {
    display: none;
  }
  .page-products .pp-figure--wide img {
    aspect-ratio: 21 / 9;
  }
}

@media (max-width: 480px) {
  .page-products .pp-hero__title {
    max-width: none;
  }
  .page-products .pp-band__inner {
    flex-wrap: wrap;
    gap: 8px 12px;
  }
  .page-products .pp-band__index {
    letter-spacing: 0.16em;
  }
  .page-products .pp-ref h3 {
    padding-right: 0;
  }
  .page-products .pp-ref__save {
    position: static;
    display: inline-block;
    margin-bottom: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-btn,
  .page-products .pp-seasons__link,
  .page-products .pp-topic__links a {
    transition: none;
  }
}