.page-products {
  --prod-line: 1px solid var(--gray-300);
  --prod-card-bg: var(--paper);
  --prod-card-muted: var(--gray-100);
  --prod-tint-new: rgba(45, 107, 255, .08);
  --prod-tint-old: rgba(15, 118, 110, .08);
  display: block;
  background: var(--paper);
  color: var(--ink-900);
}

.page-products .prod-section {
  padding: clamp(48px, 7vw, 92px) 0;
  border-top: var(--prod-line);
}

.page-products .prod-kicker {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .06em;
  color: var(--gray-500);
  margin: 0 0 18px;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  padding: clamp(16px, 3vw, 32px) 0 clamp(44px, 7vw, 88px);
  background:
    repeating-linear-gradient(90deg, rgba(11, 12, 14, .045) 0 1px, transparent 1px 104px),
    repeating-linear-gradient(180deg, rgba(11, 12, 14, .04) 0 1px, transparent 1px 104px),
    linear-gradient(180deg, var(--gray-100) 0%, rgba(251, 250, 247, 0) 70%);
  overflow: hidden;
}

.page-products .prod-scale {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  list-style: none;
  margin: 0 0 clamp(28px, 5vw, 52px);
  padding: 0;
}

.page-products .prod-scale li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-small);
  color: var(--gray-500);
}

.page-products .prod-scale__num {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--signal);
  letter-spacing: .04em;
}

.page-products .prod-hero__inner {
  display: grid;
  gap: 36px;
}

.page-products .prod-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5.2vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -.01em;
  margin: 0 0 20px;
}

.page-products .prod-hero__text {
  font-size: var(--fs-body);
  line-height: 1.78;
  color: var(--gray-500);
  max-width: 48ch;
  margin: 0 0 28px;
}

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

.page-products .prod-hero__actions .btn {
  text-decoration: none;
}

/* 双版本切口 */
.page-products .cut {
  display: grid;
  grid-template-columns: 1fr;
  border: var(--prod-line);
  border-radius: var(--radius-m);
  background: var(--paper);
  overflow: hidden;
  box-shadow: 0 12px 32px -24px rgba(11, 12, 14, .5);
}

.page-products .cut__pane {
  padding: 22px 20px;
}

.page-products .cut__pane--new {
  background: var(--prod-tint-new);
  border-top: 3px solid var(--volt);
}

.page-products .cut__pane--old {
  background: var(--prod-tint-old);
  border-top: 3px solid var(--legacy);
}

.page-products .cut__tag {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .06em;
  color: var(--gray-500);
  margin-bottom: 10px;
}

.page-products .cut__line {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0 0 8px;
  color: var(--ink-900);
}

.page-products .cut__sub {
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--gray-500);
  margin: 0;
}

.page-products .cut__bar {
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--gray-300) 0 6px, transparent 6px 12px);
}

/* ---------- 章节头 ---------- */
.page-products .prod-sec-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  align-items: baseline;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-products .prod-sec-num {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .08em;
  color: var(--signal);
  border: 1px solid currentColor;
  border-radius: var(--radius-pill);
  padding: 4px 11px;
  line-height: 1;
}

.page-products .prod-sec-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h2);
  line-height: 1.2;
  letter-spacing: -.01em;
  margin: 0;
}

.page-products .prod-sec-note {
  grid-column: 2;
  margin: 0;
  max-width: 64ch;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--gray-500);
}

/* ---------- Bento ---------- */
.page-products .bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .b-card {
  background: var(--prod-card-bg);
  border: var(--prod-line);
  border-radius: var(--radius-m);
  padding: 24px 22px;
}

.page-products .b-card--ink {
  background: var(--ink-900);
  border-color: var(--ink-900);
  color: var(--paper);
}

.page-products .b-card--muted {
  background: var(--prod-card-muted);
}

.page-products .b-card__title {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin: 0 0 12px;
}

.page-products .b-card__text {
  font-size: var(--fs-body);
  line-height: 1.78;
  margin: 0 0 18px;
  color: inherit;
  opacity: .82;
}

.page-products .b-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .b-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-small);
  line-height: 1.7;
  opacity: .9;
}

.page-products .b-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 10px;
  height: 1px;
  background: var(--signal);
}

.page-products .b-card__label {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .06em;
  color: var(--gray-500);
  margin: 0 0 12px;
}

.page-products .b-card__figure {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  line-height: 1;
  margin: 0 0 12px;
  color: var(--signal);
}

.page-products .b-card__foot {
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--gray-500);
  margin: 0;
}

.page-products .start-list {
  display: grid;
  gap: 14px;
}

.page-products .start-item {
  display: grid;
  gap: 4px;
  padding-left: 14px;
  border-left: 2px solid var(--signal);
}

.page-products .start-item__who {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .05em;
  color: var(--ink-900);
  margin: 0;
}

.page-products .start-item__what {
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--gray-500);
  margin: 0;
}

/* ---------- 通用图注 ---------- */
.page-products .prod-figure {
  margin: 0 0 clamp(24px, 4vw, 38px);
}

.page-products .prod-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--prod-line);
  border-radius: var(--radius-m);
  background: var(--gray-100);
  object-fit: cover;
}

.page-products .prod-figure figcaption {
  margin-top: 12px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--gray-500);
}

/* ---------- 访问方式 ---------- */
.page-products .access-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .access-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px;
  background: var(--prod-card-bg);
  border: var(--prod-line);
  border-radius: var(--radius-m);
  border-top: 3px solid var(--volt);
  transition: transform var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-products .access-card:hover {
  transform: translateY(-2px);
  border-top-color: var(--signal);
}

.page-products .access-card__name {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: .04em;
  margin: 0;
  color: var(--ink-900);
}

.page-products .access-card__desc {
  flex: 1 1 auto;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--gray-500);
  margin: 0;
}

.page-products .access-card__meta {
  list-style: none;
  margin: 0;
  padding: 12px 0 0;
  border-top: var(--prod-line);
  display: grid;
  gap: 6px;
}

.page-products .access-card__meta li {
  font-size: var(--fs-small);
  color: var(--ink-700);
  line-height: 1.6;
}

.page-products .access-card__key {
  display: inline-block;
  min-width: 3em;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--legacy);
}

.page-products .prod-aside {
  margin: 22px 0 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--gray-500);
}

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

/* ---------- 注册与账号 ---------- */
.page-products .account-layout {
  display: grid;
  gap: 24px;
}

.page-products .account-list {
  display: grid;
  gap: 0;
  border-top: var(--prod-line);
}

.page-products .account-item {
  padding: 20px 0;
  border-bottom: var(--prod-line);
}

.page-products .account-item__title {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin: 0 0 8px;
}

.page-products .account-item__text {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.78;
  color: var(--gray-500);
}

.page-products .prod-figure--account {
  margin-bottom: 0;
}

/* ---------- 老用户入口 ---------- */
.page-products .legacy-panel {
  display: grid;
  gap: 22px;
  padding: 26px 22px;
  background: var(--prod-tint-old);
  border: var(--prod-line);
  border-left: 4px solid var(--legacy);
  border-radius: var(--radius-m);
}

.page-products .legacy-panel__label {
  font-size: var(--fs-small);
  letter-spacing: .06em;
  color: var(--gray-500);
  margin: 0 0 10px;
}

.page-products .legacy-panel__code {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: .04em;
  margin: 0 0 10px;
  padding: 12px 14px;
  background: var(--paper);
  border: 1px dashed var(--legacy);
  border-radius: var(--radius-s);
  color: var(--legacy);
  overflow-wrap: anywhere;
}

.page-products .legacy-panel__hint {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--gray-500);
}

.page-products .legacy-panel__points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .legacy-panel__points li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--ink-700);
}

.page-products .legacy-panel__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 10px;
  height: 1px;
  background: var(--legacy);
}

/* ---------- 双版本对照 ---------- */
.page-products .compare-grid {
  display: grid;
  gap: 16px;
}

.page-products .compare-cell {
  padding: 22px 20px;
  border: var(--prod-line);
  border-radius: var(--radius-m);
  background: var(--prod-card-bg);
}

.page-products .compare-cell--new {
  border-left: 4px solid var(--volt);
  background: var(--prod-tint-new);
}

.page-products .compare-cell--old {
  border-left: 4px solid var(--legacy);
  background: var(--prod-tint-old);
}

.page-products .compare-cell__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .06em;
  margin: 0 0 10px;
  color: var(--gray-500);
}

.page-products .compare-cell__title {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin: 0 0 12px;
}

.page-products .compare-cell__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .compare-cell__list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--ink-700);
}

.page-products .compare-cell__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .65em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: .55;
}

/* ---------- 能力矩阵 ---------- */
.page-products .matrix-scroll {
  overflow-x: auto;
  border: var(--prod-line);
  border-radius: var(--radius-m);
  background: var(--paper);
  -webkit-overflow-scrolling: touch;
}

.page-products .matrix {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: var(--fs-small);
}

.page-products .matrix thead th {
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .06em;
  font-weight: 400;
  text-align: left;
  padding: 14px 14px;
  white-space: nowrap;
}

.page-products .matrix tbody th,
.page-products .matrix tbody td {
  padding: 13px 14px;
  text-align: left;
  border-bottom: 1px solid rgba(195, 200, 207, .6);
  vertical-align: middle;
}

.page-products .matrix tbody tr:nth-child(even) th,
.page-products .matrix tbody tr:nth-child(even) td {
  background: var(--gray-100);
}

.page-products .matrix tbody tr:last-child th,
.page-products .matrix tbody tr:last-child td {
  border-bottom: none;
}

.page-products .matrix tbody th {
  font-weight: 600;
  color: var(--ink-900);
  white-space: nowrap;
}

.page-products .dot {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--ink-700);
}

.page-products .dot::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray-300);
}

.page-products .dot--yes::before {
  background: var(--legacy);
}

.page-products .dot--part::before {
  background: var(--signal);
}

.page-products .dot--alt {
  color: var(--gray-500);
}

/* ---------- 版本带 ---------- */
.page-products .version-band {
  margin-bottom: 22px;
}

.page-products .version-band__track {
  list-style: none;
  margin: 0;
  padding: 0 0 16px;
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .version-node {
  flex: 0 0 min(272px, 78vw);
  scroll-snap-align: start;
}

.page-products .version-node__box {
  height: 100%;
  background: var(--prod-card-bg);
  border: var(--prod-line);
  border-radius: var(--radius-m);
  padding: 18px 18px 20px;
}

.page-products .version-node__box[open] {
  border-color: var(--signal);
  background: var(--gray-100);
}

.page-products .version-node__box summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 12px;
  position: relative;
  padding-right: 26px;
}

.page-products .version-node__box summary::-webkit-details-marker {
  display: none;
}

.page-products .version-node__box summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--signal);
  line-height: 1;
}

.page-products .version-node__box[open] summary::after {
  content: "–";
}

.page-products .version-node__ver {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  letter-spacing: .04em;
  color: var(--signal);
}

.page-products .version-node__name {
  font-size: var(--fs-small);
  color: var(--ink-900);
}

.page-products .version-node__box p {
  margin: 14px 0 0;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--gray-500);
}

/* ---------- 场景 ---------- */
.page-products .scenario-layout {
  display: grid;
  gap: 26px;
}

.page-products .prod-figure--scenario {
  margin-bottom: 0;
}

.page-products .scenario-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .scenario-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px 46px;
  background: var(--prod-card-bg);
  border: var(--prod-line);
  border-radius: var(--radius-m);
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-products .scenario-card:hover {
  background: var(--gray-100);
  border-color: var(--ink-900);
}

.page-products .scenario-card__trade {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .08em;
  color: var(--volt);
  margin: 0;
}

.page-products .scenario-card__action {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.72;
  color: var(--ink-900);
}

.page-products .scenario-card__result {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.72;
  color: var(--gray-500);
}

.page-products .scenario-card__cycle {
  position: absolute;
  left: 18px;
  bottom: 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--legacy);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-products .scenario-card:hover .scenario-card__cycle,
.page-products .scenario-card:focus-within .scenario-card__cycle {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 结尾 ---------- */
.page-products .prod-cta {
  border-top: var(--prod-line);
  background: var(--ink-900);
  color: var(--paper);
}

.page-products .prod-cta__box {
  display: grid;
  gap: 22px;
  align-items: center;
}

.page-products .prod-cta__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h3);
  margin: 0 0 10px;
}

.page-products .prod-cta__text {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.78;
  color: var(--gray-300);
  max-width: 56ch;
}

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

.page-products .prod-cta__links .btn {
  text-decoration: none;
}

.page-products .prod-cta .btn-outline {
  color: var(--paper);
  border-color: rgba(251, 250, 247, .5);
}

/* ---------- 断点 ---------- */
@media (min-width: 561px) {
  .page-products .cut {
    grid-template-columns: 1fr 2px 1fr;
  }

  .page-products .cut__bar {
    height: auto;
    background: repeating-linear-gradient(180deg, var(--gray-300) 0 6px, transparent 6px 12px);
  }

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

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

@media (min-width: 760px) {
  .page-products .bento {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    grid-auto-rows: minmax(0, auto);
  }

  .page-products .bento__a {
    grid-column: span 4;
    grid-row: span 2;
  }

  .page-products .bento__b,
  .page-products .bento__c {
    grid-column: span 2;
  }

  .page-products .bento__d {
    grid-column: span 6;
  }

  .page-products .start-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 24px;
  }

  .page-products .legacy-panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
    padding: 30px 28px;
  }

  .page-products .compare-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    border: var(--prod-line);
    border-radius: var(--radius-m);
    overflow: hidden;
    background: var(--paper);
  }

  .page-products .compare-cell {
    border: none;
    border-radius: 0;
  }

  .page-products .compare-cell--new {
    border-right: 1px solid var(--gray-300);
  }

  .page-products .prod-cta__box {
    grid-template-columns: minmax(0, 1.4fr) auto;
    gap: 32px;
  }
}

@media (min-width: 980px) {
  .page-products .prod-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: end;
    gap: 52px;
  }

  .page-products .access-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-products .account-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
    align-items: start;
    gap: 40px;
  }

  .page-products .account-list {
    border-top: none;
  }

  .page-products .account-item:first-child {
    border-top: var(--prod-line);
  }

  .page-products .scenario-layout {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: start;
    gap: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .access-card,
  .page-products .scenario-card,
  .page-products .scenario-card__cycle {
    transition: none;
  }

  .page-products .access-card:hover {
    transform: none;
  }

  .page-products .scenario-card__cycle {
    opacity: 1;
    transform: none;
  }
}