.page-products {
  background: var(--ink);
  color: var(--text);
  padding-bottom: clamp(3rem, 8vw, 6rem);
  overflow-x: hidden;
}

.page-products .container {
  width: 100%;
  max-width: var(--w-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding-top: clamp(1.25rem, 3vw, 2rem);
}

.page-products .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--mist);
}

.page-products .breadcrumb-list li + li::before {
  content: "/";
  margin-right: .4rem;
  color: var(--line-strong);
}

.page-products .breadcrumb-list a {
  color: var(--text-soft);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.page-products .breadcrumb-list a:hover,
.page-products .breadcrumb-list a:focus-visible {
  color: var(--gold-bright);
}

/* ---------- 页首 ---------- */
.page-products .page-head {
  padding-block: clamp(1.5rem, 4vw, 2.5rem) clamp(2rem, 5vw, 3.5rem);
}

.page-products .page-head .eyebrow {
  margin: 0 0 .9rem;
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-products .page-head h1 {
  margin: 0 0 1.1rem;
  max-width: 22ch;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 6.4vw, 3.5rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-products .lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(var(--fs-16), 1.7vw, var(--fs-20));
  line-height: 1.75;
  color: var(--text-soft);
}

.page-products .gold-rule {
  display: block;
  width: 100%;
  height: 1px;
  margin-top: clamp(1.8rem, 4vw, 2.8rem);
  background: linear-gradient(90deg, var(--gold) 0%, var(--line) 45%, transparent 100%);
}

/* ---------- 章节骨架 ---------- */
.page-products .chapter {
  border-top: 1px solid var(--line);
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .chapter-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(.9rem, 2.5vw, 2rem);
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-products .chapter-num {
  flex: none;
  font-family: var(--f-mono);
  font-size: clamp(2.2rem, 9vw, 4.5rem);
  line-height: .9;
  color: rgba(200, 162, 74, .34);
}

@supports (-webkit-text-stroke: 1px red) {
  .page-products .chapter-num {
    color: transparent;
    -webkit-text-stroke: 1px rgba(200, 162, 74, .58);
  }
}

.page-products .chapter-num--solid {
  color: rgba(194, 64, 46, .45);
  -webkit-text-stroke: 0;
}

.page-products .latin-label {
  margin: 0;
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--jade);
}

.page-products .chapter-title {
  margin: .35rem 0 0;
  max-width: 20ch;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 4.6vw, 2.4rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-products .chapter-lede {
  margin: 0 0 clamp(1.5rem, 4vw, 2.5rem);
  max-width: 62ch;
  font-size: clamp(var(--fs-16), 1.5vw, var(--fs-20));
  line-height: 1.75;
  color: var(--text-soft);
}

/* ---------- 图片容器 ---------- */
.page-products .media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-products .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .media-frame--wide img { aspect-ratio: 16 / 9; }
.page-products .media-frame--4x3 img { aspect-ratio: 4 / 3; }
.page-products .media-frame--1x1 img { aspect-ratio: 1 / 1; }

.page-products .media-caption {
  margin: 0;
  padding: .75rem 1rem;
  border-top: 1px solid var(--line);
  background: var(--ink-3);
  font-size: var(--fs-12);
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 服务地图 ---------- */
.page-products .service-map {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .service-map-item {
  background: var(--ink);
}

.page-products .service-map-item a {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  height: 100%;
  padding: 1.25rem 1.1rem 1.5rem;
  text-decoration: none;
  color: inherit;
  transition: background var(--t-fast) var(--ease);
}

.page-products .service-map-item a:hover,
.page-products .service-map-item a:focus-visible {
  background: var(--ink-2);
  outline: none;
}

.page-products .service-map-num {
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .18em;
  color: var(--gold);
}

.page-products .service-map-name {
  font-family: var(--f-display);
  font-size: var(--fs-20);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ivory);
}

.page-products .service-map-desc {
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 横向宽条 ---------- */
.page-products .service-strip {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-products .service-strip-main p {
  margin: 0 0 1rem;
  max-width: 58ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .service-strip-main .service-purpose {
  margin-bottom: 1.25rem;
  padding-left: .95rem;
  border-left: 2px solid var(--gold);
  font-family: var(--f-display);
  font-size: clamp(var(--fs-16), 1.6vw, var(--fs-20));
  line-height: 1.6;
  color: var(--ivory);
}

.page-products .service-strip-main .service-note {
  margin-top: 1.25rem;
  padding-top: .9rem;
  border-top: 1px solid var(--line);
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

.page-products .service-points {
  display: grid;
  gap: .85rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.page-products .service-points li {
  position: relative;
  padding-left: 1.15rem;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--text-soft);
}

.page-products .service-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .4rem;
  height: .4rem;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.page-products .point-key {
  display: inline-block;
  min-width: 3.6rem;
  margin-right: .55rem;
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--gold-bright);
}

/* ---------- 主题索引模块 ---------- */
.page-products .index-modes {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.35rem;
}

.page-products .index-structure {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1.5rem;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .index-level {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1.1rem .9rem 1.25rem;
  background: var(--ink-2);
}

.page-products .index-level-num {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  line-height: 1;
  color: var(--gold-bright);
}

.page-products .index-level-label {
  font-size: var(--fs-12);
  letter-spacing: .08em;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 对比区（浅色反白） ---------- */
.page-products .chapter--compare {
  background: var(--ivory);
  color: var(--ink);
  border-top-color: rgba(194, 64, 46, .38);
}

.page-products .chapter--compare .chapter-title {
  color: var(--ink);
}

.page-products .chapter--compare .latin-label {
  color: var(--jade-deep);
}

.page-products .compare-lede {
  color: rgba(11, 11, 13, .74);
}

.page-products .compare-wrap {
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-products .compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: var(--fs-14);
}

.page-products .compare-table thead th {
  padding: 0 .9rem .75rem 0;
  border-bottom: 1px solid rgba(11, 11, 13, .2);
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--jade-deep);
  white-space: nowrap;
}

.page-products .compare-table tbody th {
  padding: .95rem .9rem .95rem 0;
  border-bottom: 1px solid rgba(11, 11, 13, .12);
  vertical-align: top;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: var(--fs-16);
  color: var(--ink);
  white-space: nowrap;
}

.page-products .compare-table tbody td {
  padding: .95rem .9rem .95rem 0;
  border-bottom: 1px solid rgba(11, 11, 13, .12);
  vertical-align: top;
  line-height: 1.65;
  color: rgba(11, 11, 13, .78);
}

.page-products .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 升级与合作 ---------- */
.page-products .upgrade-body p {
  margin: 0 0 1.1rem;
  max-width: 62ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .upgrade-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .upgrade-steps li {
  display: flex;
  align-items: baseline;
  gap: .9rem;
  padding: 1rem 1.1rem;
  background: var(--ink-2);
}

.page-products .step-num {
  flex: none;
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--gold);
}

.page-products .step-text {
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--text-soft);
}

.page-products .upgrade-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.75rem;
}

.page-products .upgrade-note {
  margin: 1.35rem 0 0;
  max-width: 62ch;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

.page-products .upgrade-note a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color var(--t-fast) var(--ease);
}

.page-products .upgrade-note a:hover,
.page-products .upgrade-note a:focus-visible {
  color: var(--gold);
}

/* ---------- 进场动效 ---------- */
.page-products [data-reveal] {
  opacity: 1;
}

.js .page-products [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--t-mid) var(--ease), transform var(--t-mid) var(--ease);
}

.js .page-products [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-products .service-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-products .service-strip {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-products .service-strip--flip .service-strip-main { order: 2; }
  .page-products .service-strip--flip .service-strip-media { order: 1; }
}

@media (min-width: 960px) {
  .page-products .service-map {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

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

@media (max-width: 767px) {
  .page-products .compare-table,
  .page-products .compare-table tbody,
  .page-products .compare-table tr,
  .page-products .compare-table th,
  .page-products .compare-table td {
    display: block;
    width: 100%;
  }

  .page-products .compare-table thead {
    display: none;
  }

  .page-products .compare-table tbody tr {
    padding: .35rem 0 1rem;
    border-bottom: 1px solid rgba(11, 11, 13, .2);
  }

  .page-products .compare-table tbody th {
    padding: .75rem 0 .35rem;
    border-bottom: 0;
    white-space: normal;
    font-size: var(--fs-20);
  }

  .page-products .compare-table tbody td {
    display: grid;
    grid-template-columns: 6.2rem minmax(0, 1fr);
    gap: .75rem;
    padding: .22rem 0;
    border-bottom: 0;
  }

  .page-products .compare-table tbody td::before {
    content: attr(data-label);
    padding-top: .18em;
    font-family: var(--f-mono);
    font-size: var(--fs-12);
    letter-spacing: .06em;
    color: var(--jade-deep);
  }
}

@media (prefers-reduced-motion: reduce) {
  .js .page-products [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}