.page-products {
  --prod-gold: var(--color-gold-dark);
  --prod-gold-light: var(--color-gold-light);
  --prod-snow: var(--color-snow);
  --prod-brown: var(--color-brown);
  --prod-ink: var(--color-ink);
  --prod-bronze: var(--color-bronze);
  --prod-blue: var(--color-blue);
  --prod-violet: var(--color-violet);
  --prod-teal: var(--color-teal);
  --prod-line: var(--color-line);
  --prod-leather: var(--color-leather);
  background: var(--prod-snow);
}

/* ===== 首屏：研究板封面 ===== */
.prod-hero {
  background-color: var(--prod-brown);
  color: var(--prod-snow);
  position: relative;
  overflow: hidden;
  padding: 3rem 0 3.5rem;
  border-bottom: 1px solid var(--prod-gold);
}

.prod-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(201, 162, 39, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(201, 162, 39, 0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.prod-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 180px;
  height: 180px;
  background: linear-gradient(135deg, transparent 50%, rgba(201, 162, 39, 0.28) 50%);
  pointer-events: none;
}

.prod-hero__inner {
  position: relative;
  z-index: 1;
}

.prod-hero__side {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(201, 162, 39, 0.4);
}

.prod-hero__index {
  font-family: var(--font-heading);
  font-size: clamp(4rem, 14vw, 8.5rem);
  line-height: 0.9;
  color: var(--prod-gold);
  display: block;
}

.prod-hero__caption {
  font-family: var(--font-body);
  font-size: 0.875rem;
  letter-spacing: 0.18em;
  line-height: 1.7;
  text-align: right;
  color: rgba(247, 242, 231, 0.75);
}

.prod-hero__content {
  max-width: 980px;
}

.prod-hero__content .eyebrow {
  color: var(--prod-gold-light);
  margin-bottom: 0.75rem;
}

.prod-hero__content h1 {
  font-family: var(--font-heading);
  font-size: var(--font-h1);
  line-height: 1.25;
  color: var(--prod-snow);
  margin: 0 0 1.25rem;
  border-left: 5px solid var(--prod-gold);
  padding-left: 1.25rem;
}

.prod-hero__lead {
  font-size: var(--font-body-size);
  line-height: 1.8;
  color: rgba(247, 242, 231, 0.85);
  max-width: 44em;
  margin: 0;
}

.prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.prod-hero__actions .o-btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.4;
  border: 1px solid var(--prod-gold);
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.prod-hero__actions .o-btn--gold {
  background: var(--prod-gold);
  color: #fff;
  border-color: var(--prod-gold);
}

.prod-hero__actions .o-btn--gold:hover {
  background: var(--prod-gold-light);
  border-color: var(--prod-gold-light);
  color: var(--prod-ink);
}

.prod-hero__actions .o-btn--ghost {
  background: transparent;
  color: var(--prod-gold-light);
  border-color: var(--prod-gold-light);
}

.prod-hero__actions .o-btn--ghost:hover {
  background: rgba(201, 162, 39, 0.15);
}

.prod-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.prod-hero__chips .o-chip {
  background: rgba(247, 242, 231, 0.08);
  color: var(--prod-snow);
  border: 1px solid rgba(201, 162, 39, 0.35);
}

/* ===== 面包屑 ===== */
.prod-crumb {
  background: var(--prod-snow);
  border-bottom: 1px solid var(--prod-line);
}

.prod-crumb .container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-block: 0.75rem;
  font-size: 0.875rem;
}

.prod-crumb a {
  color: var(--prod-blue);
  text-decoration: none;
}

.prod-crumb a:hover {
  text-decoration: underline;
}

.prod-crumb__sep {
  color: var(--prod-bronze);
}

/* ===== 01 访问方案总览 ===== */
.prod-overview {
  padding: 4rem 0 4.5rem;
  background: var(--prod-snow);
}

.prod-overview__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.prod-terminal {
  border: 1px solid var(--prod-line);
  background: #ffffff;
  padding: 1.5rem;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.prod-terminal:hover {
  border-color: var(--prod-gold);
  box-shadow: 0 6px 20px rgba(31, 26, 21, 0.06);
}

.prod-terminal__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.prod-terminal__mark {
  font-family: var(--font-heading);
  font-size: 2rem;
  line-height: 1;
  color: var(--prod-bronze);
}

.prod-terminal__icon {
  color: var(--prod-blue);
  display: flex;
  align-items: center;
  height: 52px;
}

.prod-terminal h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  line-height: 1.4;
  margin: 0 0 0.65rem;
  color: var(--prod-ink);
}

.prod-terminal p {
  font-size: 0.975rem;
  line-height: 1.75;
  color: #4a4037;
  margin: 0 0 1rem;
}

.prod-terminal__points {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.prod-terminal__points li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.9rem;
  color: var(--prod-ink);
}

.prod-terminal__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--prod-gold);
}

.prod-terminal__more {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--prod-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.prod-terminal__more:hover {
  border-color: var(--prod-blue);
}

.prod-overview__stats {
  margin-top: 2rem;
  border-top: 2px solid var(--prod-gold);
  background: #fff5dc;
  padding: 1.25rem;
  display: grid;
  gap: 1rem;
}

.prod-overview__stats dl {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem 1.5rem;
  margin: 0;
}

.prod-overview__stats dt {
  font-size: 0.8125rem;
  color: var(--prod-bronze);
  margin-bottom: 0.2rem;
}

.prod-overview__stats dd {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--prod-brown);
  margin: 0;
}

.prod-overview__stats-note {
  font-size: 0.8125rem;
  color: var(--prod-bronze);
  margin: 0;
}

/* ===== 02 移动端访问方案 ===== */
.prod-mobile {
  background: var(--prod-snow);
  border-top: 1px solid var(--prod-line);
  padding: 4rem 0;
}

.prod-mobile__board {
  border: 1px solid var(--prod-gold);
  background: #fffdf6;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
}

.prod-mobile__board .o-board__tag {
  grid-column: 1 / -1;
}

.prod-mobile__board .o-board__title {
  margin: 0;
}

.prod-mobile h2,
.prod-shortcut__board h2 {
  font-family: var(--font-heading);
  font-size: var(--font-h2);
  margin: 0 0 0.5rem;
  color: var(--prod-ink);
}

.o-board__summary {
  line-height: 1.8;
  color: #4a4037;
  margin: 0;
}

.prod-facts {
  margin: 0;
  display: grid;
  gap: 0.75rem;
  border-left: 2px solid var(--prod-gold);
  padding-left: 1rem;
}

.prod-facts div {
  display: grid;
  grid-template-columns: 5em 1fr;
  gap: 0.5rem;
}

.prod-facts dt {
  font-size: 0.8125rem;
  color: var(--prod-bronze);
}

.prod-facts dd {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--prod-ink);
}

.prod-mobile__figure {
  margin: 0;
  grid-column: 1 / -1;
  border-top: 1px solid var(--prod-line);
  padding-top: 1.5rem;
}

.prod-mobile__figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.prod-mobile__figure figcaption {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--prod-bronze);
}

/* ===== 03 PC端2026站点方案 ===== */
.prod-desktop {
  background: var(--prod-brown);
  color: var(--prod-snow);
  padding: 4rem 0;
}

.prod-desktop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.prod-desktop__content h2 {
  font-family: var(--font-heading);
  font-size: var(--font-h2);
  color: var(--prod-snow);
  margin: 1rem 0;
}

.prod-desktop__content p {
  color: rgba(247, 242, 231, 0.85);
  line-height: 1.8;
  margin: 0;
}

.prod-desktop__points {
  list-style: none;
  margin: 1.5rem 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.prod-desktop__points li {
  position: relative;
  padding-left: 1.5rem;
  color: rgba(247, 242, 231, 0.92);
  font-size: 0.9375rem;
}

.prod-desktop__points li::before {
  content: "▰";
  position: absolute;
  left: 0;
  color: var(--prod-gold);
  font-size: 0.75rem;
  top: 0.25em;
}

.prod-desktop__facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem 1rem;
  margin: 0;
  padding: 1rem;
  border: 1px solid rgba(201, 162, 39, 0.4);
}

.prod-desktop__facts dt {
  font-size: 0.8125rem;
  color: var(--prod-gold-light);
}

.prod-desktop__facts dd {
  margin: 0.2rem 0 0;
  font-size: 0.9375rem;
  color: var(--prod-snow);
}

.prod-desktop__visual figure {
  margin: 0;
  background: rgba(247, 242, 231, 0.04);
  padding: 1rem;
  border: 1px solid rgba(201, 162, 39, 0.3);
}

.prod-desktop__visual img {
  width: 100%;
  height: auto;
  display: block;
}

.prod-desktop__visual figcaption {
  margin-top: 0.6rem;
  font-size: 0.8125rem;
  color: var(--prod-gold-light);
  text-align: right;
}

/* ===== 04 栏目分类体系 ===== */
.prod-category {
  padding: 4rem 0 4.5rem;
  background: var(--prod-snow);
}

.prod-category__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.prod-category__item {
  position: relative;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
}

.prod-category__index {
  font-family: var(--font-heading);
  font-size: 3rem;
  line-height: 1;
  color: rgba(31, 26, 21, 0.14);
  margin-bottom: 1rem;
}

.prod-category__item h3 {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  margin: 0 0 0.75rem;
}

.prod-category__item p {
  line-height: 1.75;
  font-size: 0.95rem;
  margin: 0 0 1.25rem;
}

.prod-category__tags {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.prod-category__tags li {
  border: 1px solid currentColor;
  padding: 0.25rem 0.6rem;
  font-size: 0.8125rem;
  line-height: 1.4;
}

.prod-category__item--gold {
  background: var(--prod-gold-light);
  border: 1px solid var(--prod-gold);
  color: var(--prod-ink);
}

.prod-category__item--dark {
  background: var(--prod-brown);
  color: var(--prod-snow);
  border: 1px solid var(--prod-brown);
}

.prod-category__item--dark .prod-category__index {
  color: rgba(247, 242, 231, 0.14);
}

.prod-category__item--line {
  background: transparent;
  border: 1px solid var(--prod-gold);
  color: var(--prod-ink);
}

.prod-category__item .o-btn {
  align-self: flex-start;
  margin-top: auto;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  text-decoration: none;
  font-size: 0.875rem;
  line-height: 1.4;
  border: 1px solid var(--prod-gold);
  background: transparent;
  color: var(--prod-ink);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.prod-category__item .o-btn:hover {
  background: var(--prod-gold);
  color: #ffffff;
}

.prod-category__item--dark .o-btn {
  color: var(--prod-gold-light);
  border-color: var(--prod-gold-light);
}

.prod-category__item--dark .o-btn:hover {
  background: var(--prod-gold-light);
  color: var(--prod-ink);
}

.prod-category__figure {
  margin: 2rem 0 0;
  border: 1px solid var(--prod-line);
  background: #fffdf6;
  padding: 1rem;
}

.prod-category__figure img {
  width: 100%;
  height: auto;
  display: block;
}

.prod-category__figure figcaption {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--prod-bronze);
  text-align: right;
}

/* ===== 05 活动周期与额度换算 ===== */
.prod-convert {
  background: #f6efdf;
  border-block: 2px solid var(--prod-gold);
  padding: 4rem 0 4.5rem;
}

.prod-convert__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.prod-convert__table-wrap {
  overflow-x: auto;
}

.prod-convert__table {
  background: #ffffff;
  border: 1px solid var(--prod-line);
  min-width: 560px;
  width: 100%;
  border-collapse: collapse;
}

.prod-convert__table th,
.prod-convert__table td {
  padding: 0.85rem 0.9rem;
  border-bottom: 1px solid var(--prod-line);
  text-align: left;
  font-size: 0.9rem;
}

.prod-convert__table thead th {
  background: var(--prod-gold);
  color: #ffffff;
  font-weight: 600;
}

.prod-convert__table tbody th {
  font-weight: 600;
  color: var(--prod-brown);
}

.prod-convert__figure {
  margin: 0;
  border: 1px solid var(--prod-line);
  background: #ffffff;
  padding: 0.75rem;
}

.prod-convert__figure img {
  width: 100%;
  height: auto;
  display: block;
}

.prod-convert__figure figcaption {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--prod-bronze);
}

.prod-convert__note {
  margin-top: 1.5rem;
  border-left: 4px solid var(--prod-teal);
  background: rgba(27, 107, 107, 0.06);
  padding: 1rem 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--prod-ink);
}

/* ===== 快捷键说明 ===== */
.prod-shortcut {
  padding: 4rem 0;
  background: var(--prod-snow);
}

.prod-shortcut__board {
  border: 1px solid var(--prod-line);
  background: #ffffff;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
}

.prod-shortcut__board .o-board__tag {
  grid-column: 1 / -1;
}

.prod-shortcut__figure {
  margin: 0;
  border-top: 1px solid var(--prod-line);
  padding-top: 1.5rem;
  grid-column: 1 / -1;
}

.prod-shortcut__figure img {
  width: 100%;
  max-width: 400px;
  height: auto;
  display: block;
  margin-left: auto;
}

.prod-shortcut__figure figcaption {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--prod-bronze);
  text-align: right;
}

/* ===== 延伸阅读 ===== */
.prod-next {
  background: var(--prod-leather);
  color: var(--prod-snow);
  padding: 4rem 0;
}

.prod-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.prod-next__text .eyebrow {
  color: var(--prod-gold-light);
}

.prod-next__text h2 {
  font-family: var(--font-heading);
  font-size: var(--font-h2);
  margin: 0.5rem 0 1rem;
  color: var(--prod-snow);
}

.prod-next__text p {
  color: rgba(247, 242, 231, 0.8);
  line-height: 1.8;
  margin: 0;
}

.prod-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-content: flex-start;
  align-items: center;
}

.prod-next__links .o-btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border: 1px solid var(--prod-gold);
  font-size: 0.9375rem;
  line-height: 1.4;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.prod-next__links .o-btn--gold {
  background: var(--prod-gold);
  color: #ffffff;
  border-color: var(--prod-gold);
}

.prod-next__links .o-btn--gold:hover {
  background: var(--prod-gold-light);
  border-color: var(--prod-gold-light);
  color: var(--prod-ink);
}

.prod-next__links .o-btn--ghost {
  background: transparent;
  color: var(--prod-gold-light);
  border-color: var(--prod-gold-light);
}

.prod-next__links .o-btn--ghost:hover {
  background: rgba(201, 162, 39, 0.18);
}

/* ===== 响应式 ===== */
@media (min-width: 600px) {
  .prod-overview__stats dl {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 992px) {
  .prod-hero {
    padding: 7rem 0 6rem;
  }

  .prod-hero__inner {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
  }

  .prod-hero__side {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    border-bottom: 0;
    padding-bottom: 0;
    border-right: 1px solid rgba(201, 162, 39, 0.4);
    padding-right: 2rem;
    margin-bottom: 0;
    width: 160px;
  }

  .prod-overview__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .prod-mobile__board {
    grid-template-columns: 1fr 1fr;
    padding: 2.5rem;
  }

  .prod-mobile__board .o-board__title {
    grid-column: 1 / 2;
  }

  .prod-mobile__board .o-board__aside {
    grid-column: 2 / 3;
  }

  .prod-mobile__figure {
    grid-column: 1 / -1;
  }

  .prod-desktop__grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 3rem;
  }

  .prod-category__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .prod-convert__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .prod-shortcut__board {
    grid-template-columns: 1fr 1fr;
    padding: 2.5rem;
  }

  .prod-shortcut__board .o-board__title {
    grid-column: 1 / 2;
  }

  .prod-shortcut__board .o-board__aside {
    grid-column: 2 / 3;
  }

  .prod-shortcut__figure {
    grid-column: 1 / -1;
  }

  .prod-next__grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 3rem;
  }
}