.page-products {
  --pp-line: var(--line);
  --pp-gap: clamp(20px, 3vw, 36px);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  overflow-x: clip;
}

.page-products__crumbs {
  padding-top: 28px;
  padding-bottom: 8px;
}

.page-products__crumbs .breadcrumbs {
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* ---------- 首屏 ---------- */
.page-products__hero {
  position: relative;
  padding: clamp(28px, 5vw, 64px) 0 clamp(40px, 6vw, 80px);
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(34, 224, 214, 0.13) 0%, rgba(34, 224, 214, 0) 58%),
    radial-gradient(90% 70% at 96% 100%, rgba(255, 107, 26, 0.09) 0%, rgba(255, 107, 26, 0) 62%),
    linear-gradient(180deg, rgba(27, 36, 48, 0.55) 0%, rgba(7, 12, 20, 0) 100%);
  border-bottom: 1px solid var(--pp-line);
}

.page-products__hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(36, 48, 63, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36, 48, 63, 0.4) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.5;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0));
}

.page-products__hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
}

.page-products__h1 {
  margin: 14px 0 0;
  font-size: clamp(34px, 7.2vw, 76px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-products__hero-lede {
  margin-top: 20px;
  max-width: 56ch;
  color: rgba(239, 234, 225, 0.86);
  font-size: clamp(15px, 1.35vw, 18px);
}

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

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

.page-products__metric {
  background: rgba(27, 36, 48, 0.78);
  padding: 16px 16px 18px;
}

.page-products__metric dt {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fog);
}

.page-products__metric dd {
  margin: 6px 0 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.page-products__num {
  font-family: var(--mono);
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 300;
  color: var(--cyan);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.page-products__unit {
  font-size: 12px;
  color: var(--fog);
}

/* ---------- 布局与章节导航 ---------- */
.page-products__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: start;
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-products__rail {
  position: static;
  margin-bottom: 8px;
  padding: 14px 0 18px;
  border-bottom: 1px solid var(--pp-line);
}

.page-products__rail .chapter-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
}

.page-products__rail .chapter-rail__title {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fog);
  margin: 0;
}

.page-products__rail .chapter-rail__link {
  font-size: 13px;
  color: var(--fog);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-products__rail .chapter-rail__link:hover,
.page-products__rail .chapter-rail__link:focus-visible,
.page-products__rail .chapter-rail__link[aria-current="true"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-products__stream {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-products__section {
  padding: clamp(44px, 6vw, 84px) 0 0;
  border-top: 1px solid var(--pp-line);
  margin-top: clamp(40px, 5vw, 72px);
}

.page-products__section:first-child {
  border-top: 0;
  margin-top: clamp(28px, 4vw, 52px);
}

.page-products__head {
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-products__head .section-title {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.4vw, 40px);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.page-products__head .lede {
  margin-top: 16px;
  color: rgba(239, 234, 225, 0.82);
}

.page-products .eyebrow {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0;
}

/* ---------- 01 栏目总览 ---------- */
.page-products__tree {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--pp-line);
  border: 1px solid var(--pp-line);
}

.page-products__tree-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 18px 20px;
  background: var(--ink);
  transition: background 0.3s var(--ease);
}

.page-products__tree-item:hover,
.page-products__tree-item:focus-within {
  background: var(--rock);
}

.page-products__tree-idx {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fog);
  padding-top: 4px;
}

.page-products__tree-item:hover .page-products__tree-idx,
.page-products__tree-item:focus-within .page-products__tree-idx {
  color: var(--orange);
}

.page-products__tree-body {
  min-width: 0;
}

.page-products__tree-name {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.page-products__tree-name a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-products__tree-name a:hover,
.page-products__tree-name a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-products__tree-desc {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(239, 234, 225, 0.72);
}

.page-products__tree-more {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.45s var(--ease), opacity 0.35s var(--ease), margin-top 0.35s var(--ease);
}

.page-products__tree-item:hover .page-products__tree-more,
.page-products__tree-item:focus-within .page-products__tree-more {
  max-height: 10em;
  opacity: 1;
  margin-top: 12px;
}

.page-products__tree-more li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  font-family: var(--mono);
  color: var(--fog);
  line-height: 1.9;
}

.page-products__tree-more li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 02 / 04 左右错层 ---------- */
.page-products__split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 48px);
  align-items: start;
}

.page-products__split-body .section-title {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-products__split-body p {
  margin: 16px 0 0;
  color: rgba(239, 234, 225, 0.82);
  max-width: 62ch;
}

.page-products__checks {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  border-top: 1px solid var(--pp-line);
}

.page-products__checks li {
  padding: 14px 0;
  border-bottom: 1px solid var(--pp-line);
  font-size: 15px;
  color: rgba(239, 234, 225, 0.8);
  line-height: 1.75;
}

.page-products__checks strong {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  font-weight: 500;
}

.page-products__aside {
  margin-top: 22px;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  font-size: 13px;
  color: var(--fog);
  letter-spacing: 0.02em;
}

.page-products__inline-link {
  display: inline-block;
  margin-top: 22px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, 0.45);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

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

.page-products__figure {
  margin: 0;
  border: 1px solid var(--pp-line);
  background: var(--rock);
  overflow: hidden;
}

.page-products__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-products__figure .media-frame__caption {
  padding: 12px 14px;
  border-top: 1px solid var(--pp-line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--fog);
}

/* ---------- 03 赛程面板 ---------- */
.page-products__board {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(24px, 3vw, 44px);
}

.page-products__mock {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 1px;
  background: var(--pp-line);
  border: 1px solid var(--pp-line);
  min-height: 200px;
}

.page-products__mock-rail {
  display: flex;
  flex-direction: column;
  background: rgba(27, 36, 48, 0.85);
}

.page-products__mock-day {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-family: var(--mono);
  letter-spacing: 0.1em;
  color: var(--fog);
  border-bottom: 1px solid var(--pp-line);
}

.page-products__mock-day:last-child {
  border-bottom: 0;
}

.page-products__mock-day.is-active {
  color: var(--ink);
  background: var(--cyan);
  font-weight: 700;
}

.page-products__mock-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(118px, 1fr);
  gap: 1px;
  background: var(--pp-line);
  overflow-x: auto;
}

.page-products__mock-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 14px;
  background: var(--ink);
  min-height: 150px;
}

.page-products__mock-card--focus {
  background: rgba(34, 224, 214, 0.07);
  outline: 1px solid rgba(34, 224, 214, 0.4);
  outline-offset: -1px;
}

.page-products__mock-round {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fog);
}

.page-products__mock-score {
  font-family: var(--mono);
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 300;
  color: var(--white);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.page-products__mock-score span {
  color: var(--cyan);
  margin: 0 2px;
}

.page-products__mock-card .tag {
  align-self: flex-start;
}

/* ---------- 比分区间表 ---------- */
.page-products__zones-wrap {
  margin-top: clamp(32px, 4vw, 56px);
  border-top: 1px solid var(--pp-line);
  padding-top: clamp(20px, 2.6vw, 32px);
}

.page-products__zones-lead {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fog);
}

.page-products__zones-scroll {
  overflow-x: auto;
  border: 1px solid var(--pp-line);
  background: rgba(27, 36, 48, 0.5);
  scrollbar-color: var(--cyan) var(--ink);
}

.page-products__zones-scroll:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 2px;
}

.page-products__zones {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products__zones thead th {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  border-bottom: 1px solid var(--pp-line);
  white-space: nowrap;
}

.page-products__zones tbody th {
  padding: 13px 14px;
  text-align: left;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--paper);
  border-bottom: 1px solid var(--pp-line);
  white-space: nowrap;
}

.page-products__zones tbody td {
  padding: 13px 14px;
  font-family: var(--mono);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: rgba(239, 234, 225, 0.8);
  border-bottom: 1px solid var(--pp-line);
  white-space: nowrap;
}

.page-products__zones tbody tr {
  transition: background 0.25s var(--ease);
}

.page-products__zones tbody tr:hover {
  background: rgba(34, 224, 214, 0.06);
}

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

.page-products__bar {
  display: block;
  position: relative;
  width: 100%;
  min-width: 90px;
  height: 6px;
  background: rgba(36, 48, 63, 0.9);
}

.page-products__bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--fill, 50%);
  background: linear-gradient(90deg, var(--cyan) 0%, var(--orange) 100%);
}

.page-products__zones-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fog);
  max-width: 68ch;
}

/* ---------- 05 权益对照 ---------- */
.page-products__rights-wrap {
  border: 1px solid var(--pp-line);
  overflow-x: auto;
  background: rgba(27, 36, 48, 0.4);
  scrollbar-color: var(--gold) var(--ink);
}

.page-products__rights {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products__rights thead th {
  padding: 14px;
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  border-bottom: 1px solid var(--pp-line);
  background: rgba(245, 197, 66, 0.05);
  white-space: nowrap;
}

.page-products__rights tbody th {
  padding: 14px;
  text-align: left;
  font-size: 15px;
  font-weight: 500;
  color: var(--paper);
  border-bottom: 1px solid var(--pp-line);
  white-space: nowrap;
}

.page-products__rights tbody td {
  padding: 14px;
  color: rgba(239, 234, 225, 0.8);
  border-bottom: 1px solid var(--pp-line);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-products__rights tbody td:first-of-type {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--gold);
}

.page-products__rights tbody a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, 0.4);
  transition: border-color 0.25s var(--ease);
}

.page-products__rights tbody a:hover,
.page-products__rights tbody a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-products__rights tbody tr {
  transition: background 0.25s var(--ease);
}

.page-products__rights tbody tr:hover {
  background: rgba(245, 197, 66, 0.07);
}

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

.page-products__rights-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fog);
  max-width: 68ch;
}

/* ---------- 06 使用路径 ---------- */
.page-products__paths {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--pp-line);
  border: 1px solid var(--pp-line);
}

.page-products__path {
  padding: 22px 20px 24px;
  background: var(--ink);
  transition: background 0.3s var(--ease);
}

.page-products__path:hover {
  background: var(--rock);
}

.page-products__path-tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-products__path h3 {
  margin: 10px 0 0;
  font-size: 19px;
  font-weight: 500;
  color: var(--paper);
  line-height: 1.35;
}

.page-products__path-steps {
  list-style: none;
  counter-reset: pp-step;
  padding: 0;
  margin: 16px 0 0;
}

.page-products__path-steps li {
  counter-increment: pp-step;
  position: relative;
  padding-left: 28px;
  margin-bottom: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(239, 234, 225, 0.76);
}

.page-products__path-steps li::before {
  content: counter(pp-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.15em;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-products__path-steps li:last-child {
  margin-bottom: 0;
}

/* ---------- 07 版本记录 ---------- */
.page-products__versions {
  list-style: none;
  padding: 0;
  margin: clamp(28px, 3.5vw, 48px) 0 0;
  border-top: 1px solid var(--pp-line);
}

.page-products__version {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pp-line);
  transition: padding-left 0.3s var(--ease), background 0.3s var(--ease);
}

.page-products__version:hover {
  padding-left: 10px;
  background: rgba(34, 224, 214, 0.04);
}

.page-products__version-no {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--clay);
}

.page-products__version-body h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--paper);
  line-height: 1.4;
}

.page-products__version-body p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(239, 234, 225, 0.72);
  max-width: 66ch;
}

/* ---------- 页尾动作 ---------- */
.page-products__tail {
  margin-top: clamp(36px, 4.5vw, 64px);
  padding: clamp(24px, 3vw, 36px);
  border: 1px solid var(--pp-line);
  background: linear-gradient(120deg, rgba(34, 224, 214, 0.07) 0%, rgba(255, 107, 26, 0.05) 100%);
}

.page-products__tail p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(239, 234, 225, 0.88);
  max-width: 62ch;
}

.page-products__tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products__metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-products__version {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }
}

@media (min-width: 981px) {
  .page-products__hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-products__layout {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 72px);
  }

  .page-products__rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    border-bottom: 0;
    border-right: 1px solid var(--pp-line);
    padding: 0 20px 0 0;
    margin-bottom: 0;
  }

  .page-products__rail .chapter-rail__list {
    flex-direction: column;
    gap: 4px;
    margin-top: 14px;
  }

  .page-products__rail .chapter-rail__link {
    display: block;
    padding: 6px 0;
    font-size: 13px;
  }

  .page-products__split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-products__split--rev {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-products__split--rev .page-products__split-body {
    order: 2;
  }

  .page-products__split--rev .page-products__figure {
    order: 1;
  }

  .page-products__board {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: stretch;
  }

  .page-products__mock {
    min-height: 260px;
  }

  .page-products__mock-card {
    min-height: 220px;
  }
}

@media (min-width: 1280px) {
  .page-products__tree {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products__tree-more,
  .page-products__tree-item,
  .page-products__version,
  .page-products__path,
  .page-products__rail .chapter-rail__link {
    transition: none;
  }
}
</main>

.page-products {
  --fill: currentColor;
}