.page-products {
  --prod-rule: rgba(27, 42, 37, 0.16);
  --prod-rule-soft: rgba(27, 42, 37, 0.09);
  --prod-dark-rule: rgba(245, 241, 230, 0.16);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-products .u-num {
  font-family: var(--font-num);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ---------- 首屏封面 ---------- */
.page-products .prod-hero {
  padding: clamp(12px, 3vw, 28px) 0 clamp(32px, 6vw, 72px);
  background: var(--paper);
}

.page-products .prod-cover {
  margin-top: clamp(16px, 3vw, 32px);
  background: var(--pitch);
  color: var(--paper);
  border-radius: 2px;
  padding: clamp(24px, 5vw, 64px);
  position: relative;
  overflow: hidden;
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  grid-template-columns: 1fr;
}

.page-products .prod-cover::before {
  content: "";
  position: absolute;
  inset: auto -10% -40% auto;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(63, 224, 180, 0.16), transparent 68%);
  pointer-events: none;
}

.page-products .prod-cover__lead {
  position: relative;
  z-index: 1;
}

.page-products .prod-cover .u-eyebrow {
  color: var(--gold);
}

.page-products .prod-cover h1 {
  margin: 12px 0 0;
  font-size: clamp(26px, 4.6vw, 50px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 20ch;
}

.page-products .prod-cover .u-lead {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: rgba(245, 241, 230, 0.76);
}

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

.page-products .prod-cover__stats {
  margin: clamp(28px, 4vw, 44px) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 48px);
  padding-top: 22px;
  border-top: 1px solid var(--prod-dark-rule);
}

.page-products .prod-cover__stats > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-products .prod-cover__stats dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(245, 241, 230, 0.52);
}

.page-products .prod-cover__stats dd {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.05;
  font-weight: 700;
  color: var(--gold);
}

.page-products .prod-cover__stats dd .u-num {
  font-family: var(--font-num);
}

/* 首屏右侧索引 */
.page-products .prod-cover__index {
  position: relative;
  z-index: 1;
  background: var(--night);
  padding: clamp(18px, 2.6vw, 28px);
  align-self: start;
}

.page-products .prod-cover__index-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--teal);
}

.page-products .prod-cover__index ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-products .prod-cover__index a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 8px 6px;
  color: rgba(245, 241, 230, 0.8);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid var(--prod-dark-rule);
  transition: color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-products .prod-cover__index a .u-num {
  font-size: 18px;
  color: var(--gold);
  min-width: 2ch;
}

.page-products .prod-cover__index a:hover,
.page-products .prod-cover__index a:focus-visible {
  color: var(--paper);
  padding-left: 12px;
}

.page-products .prod-cover__index a.is-active {
  color: var(--gold);
}

/* ---------- 章节骨架 ---------- */
.page-products .prod-chapter {
  padding: clamp(40px, 6.5vw, 88px) 0;
  border-top: 1px solid var(--prod-rule);
  background: var(--paper);
}

.page-products .prod-chapter__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(16px, 4vw, 40px);
  margin-bottom: clamp(24px, 3.6vw, 44px);
}

.page-products .prod-chapter__kicker {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold-deep);
  position: relative;
  padding-left: 26px;
}

.page-products .prod-chapter__kicker::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 18px;
  height: 2px;
  background: var(--gold-deep);
  transform: translateY(-50%) rotate(-6deg);
}

.page-products .prod-chapter__title h2 {
  margin: 0;
  font-size: clamp(22px, 3.6vw, 40px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -0.01em;
  max-width: 24ch;
}

.page-products .prod-chapter__num {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: clamp(50px, 9vw, 116px);
  line-height: 0.78;
  letter-spacing: -0.03em;
  color: transparent;
  -webkit-text-stroke: 1.4px rgba(201, 117, 26, 0.62);
  flex: none;
  user-select: none;
}

.page-products .prod-chapter__intro {
  margin: 0 0 clamp(22px, 3vw, 34px);
  max-width: 62ch;
  font-size: clamp(15px, 1.55vw, 17px);
  color: var(--ink-soft);
}

.page-products .prod-chapter__foot {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 66ch;
}

.page-products .prod-chapter__foot a,
.page-products .prod-two__main a,
.page-products .prod-roles__foot a {
  color: var(--gold-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* ---------- 分栏 ---------- */
.page-products .prod-two {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}

.page-products .prod-two__main p {
  margin: 0 0 18px;
  font-size: clamp(15px, 1.55vw, 17px);
  max-width: 62ch;
}

.page-products .prod-two__main p:last-child {
  margin-bottom: 0;
}

/* ---------- 列表 ---------- */
.page-products .prod-list {
  margin: 22px 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-products .prod-list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  color: var(--ink);
  border-bottom: 1px solid var(--prod-rule-soft);
  padding-bottom: 12px;
}

.page-products .prod-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 10px;
  height: 2px;
  background: var(--teal);
}

/* ---------- 表格 ---------- */
.page-products .prod-table-wrap {
  margin-top: clamp(20px, 3vw, 32px);
  overflow-x: auto;
  border-top: 2px solid var(--ink);
  background: var(--paper);
}

.page-products .prod-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
  font-family: var(--font-sans);
}

.page-products .prod-table caption {
  text-align: left;
  padding: 12px 0 10px;
  font-size: 13px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

.page-products .prod-table thead th {
  background: var(--pitch);
  color: rgba(245, 241, 230, 0.86);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-align: left;
  padding: 10px 14px;
  white-space: nowrap;
}

.page-products .prod-table tbody th,
.page-products .prod-table tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--prod-rule-soft);
  text-align: left;
  font-weight: 400;
  vertical-align: top;
}

.page-products .prod-table tbody th {
  font-weight: 700;
  white-space: nowrap;
}

.page-products .prod-table tbody tr:nth-child(even) {
  background: var(--paper-2);
}

.page-products .prod-table tbody tr.is-lead {
  background: rgba(240, 160, 60, 0.22);
  box-shadow: inset 4px 0 0 var(--gold);
}

.page-products .prod-table tbody tr.is-lead th {
  color: var(--gold-deep);
}

.page-products .prod-table--compare td:first-of-type,
.page-products .prod-table--compare th:nth-child(2) {
  text-align: right;
}

/* ---------- 时间轴 ---------- */
.page-products .tl-scroll {
  margin-top: clamp(20px, 3vw, 32px);
  overflow-x: auto;
  padding-bottom: 14px;
  scrollbar-width: thin;
}

.page-products .tl-scroll:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.page-products .tl-track {
  margin: 0;
  padding: 0 clamp(4px, 2vw, 20px) 0 4px;
  list-style: none;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(232px, 1fr);
  gap: 18px;
  position: relative;
}

.page-products .tl-track::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 9px;
  height: 1px;
  background: linear-gradient(90deg, var(--teal), rgba(63, 224, 180, 0.12));
}

.page-products .tl-node {
  position: relative;
  padding: 30px 18px 22px;
  background: var(--pitch);
  color: rgba(245, 241, 230, 0.82);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 16px));
}

.page-products .tl-node__dot {
  position: absolute;
  top: 4px;
  left: 18px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(63, 224, 180, 0.16);
}

.page-products .tl-node__stage {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-products .tl-node__num {
  margin: 0 0 12px;
  font-size: 30px;
  line-height: 1;
  font-weight: 700;
  color: var(--paper);
}

.page-products .tl-node__num .u-num {
  font-size: 40px;
}

.page-products .tl-node__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(245, 241, 230, 0.68);
}

/* ---------- 图像 ---------- */
.page-products .prod-figure {
  margin: 0;
}

.page-products .prod-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 2px;
}

.page-products .prod-figure .media-frame__cap {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--ink-soft);
}

.page-products .prod-figure--band {
  margin-top: clamp(28px, 4vw, 48px);
}

/* ---------- 球场 SVG ---------- */
.page-products .prod-pitch-wrap {
  background: var(--pitch);
  padding: clamp(16px, 2.6vw, 26px);
  border-radius: 2px;
}

.page-products .prod-pitch {
  display: block;
  width: 100%;
  height: auto;
  color: rgba(245, 241, 230, 0.5);
}

.page-products .pitch-outline,
.page-products .pitch-line {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
}

.page-products .pitch-arc {
  fill: none;
  stroke: var(--gold);
  stroke-width: 2.4;
  stroke-dasharray: 7 5;
}

.page-products .pitch-arc--thin {
  stroke: var(--teal);
  stroke-width: 1.4;
  stroke-dasharray: 4 6;
}

.page-products .pitch-hot {
  fill: var(--gold);
  opacity: 0.9;
}

.page-products .prod-pitch__cap {
  margin: 14px 0 0;
  font-size: 12.5px;
  color: rgba(245, 241, 230, 0.6);
}

/* ---------- 筛选标签 ---------- */
.page-products .prod-chips {
  margin-top: clamp(26px, 3.4vw, 38px);
}

.page-products .prod-chips__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

.page-products .prod-chips__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .prod-chip {
  font-size: 13px;
  padding: 6px 14px;
  border: 1px solid var(--prod-rule);
  border-radius: 999px;
  color: var(--ink);
  background: var(--paper-3);
}

.page-products .prod-chip--gold {
  border-color: var(--gold-deep);
  background: rgba(240, 160, 60, 0.16);
  color: var(--gold-deep);
  font-weight: 700;
}

/* ---------- 接入形态 ---------- */
.page-products .prod-access {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 20px;
}

.page-products .prod-access__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--prod-rule-soft);
}

.page-products .prod-access__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-products .prod-access__num {
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
  color: var(--gold);
  min-width: 1.4ch;
}

.page-products .prod-access__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
}

.page-products .prod-access__item p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-soft);
}

.page-products .prod-access__note {
  margin: 24px 0 0;
  font-size: 15px;
  padding-left: 16px;
  border-left: 3px solid var(--teal);
  color: var(--ink);
}

/* ---------- 字段卡片 ---------- */
.page-products .prod-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-products .field-card {
  border: 1px solid var(--prod-rule);
  background: var(--paper);
  border-radius: 2px;
}

.page-products .field-card[open] {
  border-color: var(--gold-deep);
  background: var(--paper-3);
}

.page-products .field-card__summary {
  cursor: pointer;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  list-style: none;
}

.page-products .field-card__summary::-webkit-details-marker {
  display: none;
}

.page-products .field-card__name {
  font-size: 16px;
  font-weight: 700;
}

.page-products .field-card__hint {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-deep);
  border: 1px solid rgba(201, 117, 26, 0.5);
  padding: 2px 10px;
  flex: none;
}

.page-products .field-card__list {
  margin: 0;
  padding: 0 16px 18px;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-products .field-card__list li {
  font-size: 14px;
  color: var(--ink-soft);
  display: flex;
  gap: 12px;
  align-items: baseline;
  border-top: 1px solid var(--prod-rule-soft);
  padding-top: 8px;
}

.page-products .field-card__list .u-num {
  font-size: 14px;
  color: var(--pitch);
  min-width: 10ch;
}

/* ---------- 深色章节 ---------- */
.page-products .prod-chapter--dark {
  background: var(--pitch);
  color: var(--paper);
  border-top-color: var(--pitch);
}

.page-products .prod-chapter--dark .prod-chapter__title h2 {
  color: var(--paper);
}

.page-products .prod-chapter--dark .prod-chapter__kicker {
  color: var(--teal);
}

.page-products .prod-chapter--dark .prod-chapter__kicker::before {
  background: var(--teal);
}

.page-products .prod-chapter--dark .prod-chapter__num {
  -webkit-text-stroke-color: rgba(63, 224, 180, 0.55);
}

.page-products .prod-roles {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-products .prod-role {
  padding: 20px 0 0;
  border-top: 1px solid var(--prod-dark-rule);
}

.page-products .prod-role h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--gold);
}

.page-products .prod-role p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 241, 230, 0.74);
}

.page-products .prod-cta {
  margin-top: clamp(32px, 4.6vw, 56px);
  padding: clamp(22px, 3.4vw, 36px);
  background: var(--night);
  border-left: 5px solid var(--gold);
  display: grid;
  gap: 20px;
}

.page-products .prod-cta h3 {
  margin: 0 0 8px;
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
  color: var(--paper);
}

.page-products .prod-cta p {
  margin: 0;
  font-size: 15px;
  color: rgba(245, 241, 230, 0.7);
}

.page-products .prod-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .prod-roles__foot {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  font-size: 14.5px;
  color: rgba(245, 241, 230, 0.62);
}

.page-products .prod-roles__foot a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .prod-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prod-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 40px;
  }

  .page-products .prod-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-products .prod-cover {
    grid-template-columns: minmax(0, 62fr) minmax(0, 38fr);
    align-items: start;
  }

  .page-products .prod-two {
    grid-template-columns: minmax(0, 63fr) minmax(0, 37fr);
  }

  .page-products .prod-two--reverse {
    grid-template-columns: minmax(0, 37fr) minmax(0, 63fr);
  }

  .page-products .prod-two--reverse .prod-two__main {
    order: 2;
  }

  .page-products .prod-two--reverse .prod-figure {
    order: 1;
  }

  .page-products .prod-chapter__intro {
    margin-left: clamp(0px, 6vw, 96px);
  }
}

@media (min-width: 1120px) {
  .page-products .prod-fields {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-cover__index a,
  .page-products .prod-cover__index a:hover {
    transition: none;
    padding-left: 6px;
  }
}