.page-products {
  --prod-line: rgba(154, 113, 48, .42);
  --prod-line-soft: rgba(127, 168, 160, .22);
  --prod-grid: rgba(154, 113, 48, .12);
  --prod-card: rgba(244, 235, 220, .045);
  --prod-wash: rgba(224, 162, 60, .13);
  --prod-ink-soft: rgba(244, 235, 220, .84);
  --prod-ink-faint: rgba(244, 235, 220, .62);
  font-family: var(--font-body);
  color: var(--paper);
  background-color: var(--ink);
  overflow-x: hidden;
  line-height: 1.8;
}

.page-products .prod-crumb {
  padding-block: 20px 0;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  padding-block: clamp(26px, 4.5vw, 52px) clamp(28px, 4.5vw, 56px);
  border-bottom: 1px solid var(--prod-line);
  background-image:
    linear-gradient(to bottom, var(--prod-wash), rgba(11, 36, 30, 0) 62%),
    repeating-linear-gradient(to right, var(--prod-grid) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(to bottom, var(--prod-grid) 0 1px, transparent 1px 88px);
}

.page-products .prod-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-products .prod-hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 4.6vw, 3rem);
  line-height: 1.18;
  letter-spacing: -.015em;
  margin: 14px 0 16px;
  max-width: 20ch;
}

.page-products .prod-hero__lede {
  margin: 0;
  max-width: 46ch;
  font-size: 1.03rem;
  color: var(--prod-ink-soft);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* 首屏索引 */
.page-products .prod-index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--prod-line);
}

.page-products .prod-index__item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  padding: 14px 0;
  border-bottom: 1px solid var(--prod-line);
}

.page-products .prod-index__num {
  font-size: .82rem;
  color: var(--goldline);
  letter-spacing: .06em;
  padding-top: 3px;
}

.page-products .prod-index__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.page-products .prod-index__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: -.01em;
  transition: color 180ms var(--ease);
}

.page-products .prod-index__desc {
  display: block;
  margin-top: 4px;
  font-size: .88rem;
  line-height: 1.68;
  color: var(--prod-ink-faint);
}

.page-products .prod-index__link:hover .prod-index__name,
.page-products .prod-index__link:focus-visible .prod-index__name {
  color: var(--amber);
}

/* 首屏数字带 */
.page-products .prod-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  margin-top: clamp(26px, 4vw, 42px);
  padding-top: 22px;
  border-top: 1px solid var(--prod-line);
}

.page-products .prod-stats__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.page-products .prod-stats__num {
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  font-weight: 500;
  color: var(--amber);
  letter-spacing: -.01em;
}

.page-products .prod-stats__label {
  font-size: .8rem;
  line-height: 1.6;
  color: var(--prod-ink-faint);
}

/* ---------- 通用章节 ---------- */
.page-products .prod-section {
  padding-block: clamp(40px, 6vw, 76px);
  border-bottom: 1px solid var(--prod-line);
}

.page-products .prod-section--paper {
  background-color: var(--ink-deep);
}

.page-products .prod-section__head {
  max-width: 62ch;
}

.page-products .prod-section__head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.42rem, 3vw, 2.1rem);
  line-height: 1.28;
  letter-spacing: -.012em;
  margin: 12px 0 14px;
}

.page-products .prod-section__head p {
  margin: 0;
  color: var(--prod-ink-soft);
  font-size: .98rem;
}

.page-products .prod-overview__figure {
  margin: clamp(24px, 4vw, 38px) 0 0;
}

.page-products .prod-inline-link {
  margin: 18px 0 0;
  font-size: .92rem;
  color: var(--prod-ink-faint);
}

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

.page-products .prod-inline-link a:hover {
  color: var(--paper);
}

/* ---------- 总览卡片 ---------- */
.page-products .prod-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(22px, 4vw, 34px);
}

.page-products .prod-card {
  padding: 20px 20px 22px;
  background-color: var(--prod-card);
  border: 1px solid var(--prod-line);
  border-left: 3px solid var(--amber);
  min-width: 0;
}

.page-products .prod-card:nth-child(2) {
  border-left-color: var(--celadon);
}

.page-products .prod-card:nth-child(3) {
  border-left-color: var(--cinnabar);
}

.page-products .prod-card:nth-child(4) {
  border-left-color: var(--goldline);
}

.page-products .prod-card__num {
  margin: 0;
  font-size: .76rem;
  letter-spacing: .12em;
  color: var(--goldline);
}

.page-products .prod-card__title {
  font-family: var(--font-display);
  font-size: 1.14rem;
  font-weight: 700;
  margin: 6px 0 8px;
  letter-spacing: -.01em;
}

.page-products .prod-card__text {
  margin: 0;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--prod-ink-soft);
}

/* ---------- 分栏 ---------- */
.page-products .prod-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

.page-products .prod-split__text h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.28;
  letter-spacing: -.012em;
  margin: 12px 0 14px;
}

.page-products .prod-split__text > p {
  margin: 0;
  color: var(--prod-ink-soft);
  font-size: .98rem;
}

.page-products .prod-split__media {
  min-width: 0;
}

.page-products .prod-split__media .media {
  margin: 0;
}

/* ---------- 勾选清单 ---------- */
.page-products .prod-checklist {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .prod-checklist li {
  position: relative;
  padding-left: 24px;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--prod-ink-soft);
}

.page-products .prod-checklist li::before {
  content: "—";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--amber);
}

.page-products .prod-checklist strong {
  color: var(--paper);
  font-weight: 600;
}

/* ---------- 标签页 ---------- */
.page-products .prod-tabs {
  display: block;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-products .prod-tabs .tablist {
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .prod-tabs .tab {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .86rem;
  letter-spacing: .01em;
  padding: 8px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--prod-line);
  background-color: transparent;
  color: var(--prod-ink-soft);
  cursor: pointer;
  transition: background-color 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .prod-tabs .tab:hover {
  color: var(--paper);
  border-color: var(--amber);
}

.page-products .prod-tabs .tab[aria-selected="true"] {
  background-color: var(--amber);
  border-color: var(--amber);
  color: var(--charcoal);
}

.page-products .prod-tabs .tab:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-products .prod-tabs .tabpanel {
  padding-top: 22px;
  animation: prod-fade 200ms var(--ease);
}

@keyframes prod-fade {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 时间轴 / 清单 ---------- */
.page-products .prod-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .prod-timeline__item {
  display: grid;
  grid-template-columns: 54px 14px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--prod-line);
}

.page-products .prod-timeline__time {
  font-size: .8rem;
  color: var(--celadon);
  letter-spacing: .02em;
}

.page-products .prod-timeline__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--amber);
  justify-self: center;
}

.page-products .prod-timeline__text {
  font-size: .92rem;
  line-height: 1.7;
  color: var(--prod-ink-soft);
}

.page-products .prod-rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .prod-rows__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--prod-line);
}

.page-products .prod-rows__time {
  font-size: .8rem;
  color: var(--celadon);
  min-width: 46px;
}

.page-products .prod-rows__title {
  flex: 1 1 180px;
  min-width: 0;
  font-size: .95rem;
  color: var(--paper);
}

.page-products .prod-rows__tag {
  font-family: var(--font-body);
  font-size: .72rem;
}

.page-products .prod-rows__meta {
  font-size: .78rem;
  color: var(--prod-ink-faint);
}

/* ---------- 道具面板 ---------- */
.page-products .prod-panel__lede {
  margin: 0 0 16px;
  max-width: 60ch;
  font-size: .97rem;
  color: var(--prod-ink-soft);
}

.page-products .prod-defs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--prod-line);
}

.page-products .prod-defs dt {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--celadon);
  padding-top: 14px;
}

.page-products .prod-defs dd {
  margin: 0;
  padding: 4px 0 14px;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--prod-ink-soft);
  border-bottom: 1px solid var(--prod-line);
}

/* ---------- 会员权益（浅色档案区） ---------- */
.page-products .prod-member {
  background-color: var(--paper);
  color: var(--ink);
  border: 1px solid var(--prod-line);
  padding: clamp(22px, 4vw, 44px);
}

.page-products .prod-member .section-label {
  color: var(--cinnabar);
}

.page-products .prod-section__head--paper {
  max-width: 62ch;
}

.page-products .prod-section__head--paper h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.42rem, 3vw, 2.05rem);
  line-height: 1.28;
  letter-spacing: -.012em;
  margin: 12px 0 14px;
  color: var(--ink);
}

.page-products .prod-section__head--paper p {
  margin: 0;
  font-size: .96rem;
  color: rgba(11, 36, 30, .78);
}

.page-products .prod-member__figure {
  margin: clamp(20px, 3.5vw, 30px) 0 0;
}

.page-products .prod-benefits {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(20px, 3.5vw, 28px);
}

.page-products .prod-detail {
  border: 1px solid rgba(11, 36, 30, .22);
  background-color: rgba(255, 255, 255, .3);
  padding: 14px 16px;
}

.page-products .prod-detail[open] {
  background-color: rgba(224, 162, 60, .18);
  border-color: rgba(154, 113, 48, .6);
}

.page-products .prod-detail__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  cursor: pointer;
  list-style: none;
}

.page-products .prod-detail__summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-detail__summary::marker {
  content: "";
}

.page-products .prod-detail__summary:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 3px;
}

.page-products .prod-detail__num {
  font-size: .76rem;
  color: var(--cinnabar);
  letter-spacing: .08em;
}

.page-products .prod-detail__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.04rem;
  color: var(--ink);
  flex: 1 1 auto;
}

.page-products .prod-detail__hint {
  font-size: .78rem;
  color: rgba(11, 36, 30, .62);
}

.page-products .prod-detail__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: .95rem;
  color: var(--cinnabar);
}

.page-products .prod-detail[open] .prod-detail__summary::after {
  content: "−";
}

.page-products .prod-detail__body p {
  margin: 12px 0 0;
  font-size: .92rem;
  line-height: 1.75;
  color: rgba(11, 36, 30, .82);
}

/* ---------- 收藏分组 ---------- */
.page-products .prod-groups {
  list-style: none;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-products .prod-groups__item {
  padding: 16px 18px;
  border: 1px solid var(--prod-line);
  background-color: var(--prod-card);
  border-top: 2px solid var(--celadon);
}

.page-products .prod-groups__tag {
  display: inline-block;
  margin-bottom: 8px;
}

.page-products .prod-groups__text {
  margin: 0;
  font-size: .92rem;
  line-height: 1.72;
  color: var(--prod-ink-soft);
}

/* ---------- 使用准备 ---------- */
.page-products .prod-prep {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(22px, 4vw, 34px);
}

.page-products .prod-prep__item {
  padding-left: 16px;
  border-left: 1px solid var(--prod-line-soft);
}

.page-products .prod-prep__num {
  margin: 0;
  font-size: .76rem;
  letter-spacing: .12em;
  color: var(--goldline);
}

.page-products .prod-prep__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 6px 0 6px;
}

.page-products .prod-prep__item p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--prod-ink-soft);
}

.page-products .prod-cta {
  margin-top: clamp(28px, 4.5vw, 44px);
  padding-top: 24px;
  border-top: 1px solid var(--prod-line);
  display: grid;
  gap: 16px;
}

.page-products .prod-cta__text {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.2vw, 1.32rem);
  font-weight: 700;
  letter-spacing: -.01em;
  max-width: 40ch;
}

.page-products .prod-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .prod-defs {
    grid-template-columns: 116px minmax(0, 1fr);
    column-gap: 18px;
  }

  .page-products .prod-defs dt {
    padding-top: 12px;
    border-top: 1px solid var(--prod-line);
  }

  .page-products .prod-defs dd {
    padding-top: 12px;
    border-top: 1px solid var(--prod-line);
  }

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

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

@media (min-width: 780px) {
  .page-products .prod-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-products .prod-split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 56px);
  }

  .page-products .prod-split--flip {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-products .prod-split--flip .prod-split__media {
    order: -1;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-tabs .tabpanel {
    animation: none;
  }

  .page-products .prod-tabs .tab,
  .page-products .prod-index__name {
    transition: none;
  }
}