.page-products {
  --svc-gap: clamp(22px, 3.2vw, 42px);
  --svc-block-pad: clamp(44px, 6vw, 88px);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-products .svc-mast {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.5vw, 56px) 0 clamp(18px, 2.6vw, 30px);
  background:
    radial-gradient(760px 340px at 4% -20%, rgba(168, 255, 62, .17), transparent 68%),
    radial-gradient(620px 320px at 96% -8%, rgba(59, 201, 255, .15), transparent 70%),
    radial-gradient(560px 280px at 50% 130%, rgba(74, 21, 36, .5), transparent 72%);
}

.page-products .svc-mast__title {
  margin: 14px 0 0;
  max-width: 22ch;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 5.2vw, 58px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--cool-white);
}

.page-products .svc-mast__title::after {
  content: "";
  display: block;
  width: clamp(78px, 14vw, 168px);
  height: 5px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--neon-green), var(--ember-orange));
  transform: skewX(-22deg);
  border-radius: 2px;
}

.page-products .svc-mast__lead {
  max-width: 64ch;
  margin: 22px 0 0;
  font-size: clamp(15.5px, 1.5vw, 18px);
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 章节索引 ---------- */
.page-products .svc-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(22px, 3vw, 34px);
  padding-top: clamp(16px, 2.4vw, 24px);
  border-top: 1px solid var(--slate-line);
}

.page-products .svc-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--slate-line);
  border-radius: var(--radius-pill);
  color: var(--ink-dim);
  font-size: .875rem;
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-products .svc-index__link:hover,
.page-products .svc-index__link:focus-visible {
  color: var(--cool-white);
  border-color: var(--ember-orange);
}

.page-products .svc-index__link.is-active {
  color: var(--arena-night);
  background: var(--neon-green);
  border-color: var(--neon-green);
}

.page-products .svc-index__num {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--neon-green);
}

.page-products .svc-index__link.is-active .svc-index__num {
  color: var(--arena-night);
}

/* ---------- 章节节距 ---------- */
.page-products .svc-section {
  padding-top: var(--svc-block-pad);
  padding-bottom: var(--svc-block-pad);
}

/* ---------- 对照表 ---------- */
.page-products .svc-table-wrap {
  margin-top: clamp(20px, 2.6vw, 32px);
  padding: clamp(16px, 2.4vw, 28px);
  border: 1px solid var(--slate-line);
  border-radius: var(--radius-m);
  background: linear-gradient(172deg, rgba(20, 27, 51, .74), rgba(8, 12, 18, .7));
}

.page-products .svc-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: clamp(.875rem, 1.05vw, 1rem);
}

.page-products .svc-table__caption {
  caption-side: top;
  text-align: left;
  padding-bottom: 14px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  line-height: 1.7;
  color: var(--ink-faint);
}

.page-products .svc-table thead th {
  padding: 0 16px 12px 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--ember-orange);
  border-bottom: 1px solid var(--slate-line);
}

.page-products .svc-table tbody th,
.page-products .svc-table tbody td {
  padding: 16px 16px 16px 0;
  border-bottom: 1px solid rgba(42, 53, 66, .7);
  vertical-align: top;
  font-weight: 400;
  line-height: 1.68;
  color: var(--ink-dim);
}

.page-products .svc-table tbody th {
  color: var(--cool-white);
  font-weight: 700;
  white-space: nowrap;
}

.page-products .svc-table tbody tr {
  transition: background-color .18s var(--ease);
}

.page-products .svc-table tbody tr:hover {
  background-color: rgba(168, 255, 62, .07);
}

.page-products .svc-table tbody tr:last-child th,
.page-products .svc-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 双栏内容块 ---------- */
.page-products .svc-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--svc-gap);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-products .svc-block__body > p {
  margin: 0 0 18px;
  font-size: clamp(15.5px, 1.3vw, 17px);
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-products .svc-block__body > p:last-child {
  margin-bottom: 0;
}

.page-products .svc-block__media {
  margin: 0;
}

.page-products .svc-link {
  color: var(--neon-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(168, 255, 62, .38);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-products .svc-link:hover,
.page-products .svc-link:focus-visible {
  color: var(--ember-orange);
  border-bottom-color: var(--ember-orange);
}

/* ---------- 参数清单 ---------- */
.page-products .spec-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--slate-line);
}

.page-products .spec-list__item {
  display: grid;
  grid-template-columns: minmax(84px, .38fr) minmax(0, 1fr);
  gap: 6px 18px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid rgba(42, 53, 66, .65);
}

.page-products .spec-list__key {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .05em;
  color: var(--neon-green);
}

.page-products .spec-list__val {
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--ink-dim);
}

/* ---------- 节次条 ---------- */
.page-products .segment-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(64px, 1fr));
  gap: 10px;
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-products .segment-strip__seg {
  display: grid;
  gap: 8px;
}

.page-products .segment-strip__q {
  font-size: .875rem;
  color: var(--cool-white);
}

.page-products .segment-strip__seg--ot .segment-strip__q {
  color: var(--ember-orange);
}

.page-products .segment-strip .data-bar {
  height: 8px;
  border-radius: var(--radius-pill);
  background: rgba(244, 247, 251, .12);
  overflow: hidden;
}

.page-products .segment-strip .data-bar__fill {
  display: block;
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--neon-green), rgba(168, 255, 62, .45));
}

.page-products .segment-strip__seg--ot .data-bar__fill {
  background: linear-gradient(90deg, var(--ember-orange), rgba(255, 106, 31, .4));
}

.page-products .segment-strip__legend {
  margin: 14px 0 0;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--ink-faint);
}

/* ---------- 三种粒度视图 ---------- */
.page-products .split-views {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(18px, 2.4vw, 28px);
}

.page-products .split-view {
  position: relative;
  overflow: hidden;
  padding: 22px 20px 20px 24px;
  border: 1px solid var(--slate-line);
  border-radius: var(--radius-m);
  background: rgba(20, 27, 51, .62);
  transition: transform .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-products .split-view::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
}

.page-products .split-view:nth-child(1)::before { background: var(--neon-green); }
.page-products .split-view:nth-child(2)::before { background: var(--electric-blue); }
.page-products .split-view:nth-child(3)::before { background: var(--ember-orange); }

.page-products .split-view:hover,
.page-products .split-view:focus-within {
  transform: translateY(-4px);
  border-color: var(--neon-green);
  box-shadow: 0 12px 28px rgba(0, 0, 0, .38);
}

.page-products .split-view__name {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cool-white);
}

.page-products .split-view__desc {
  margin: 0 0 12px;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-products .split-view__use {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(42, 53, 66, .9);
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--ink-faint);
}

/* ---------- 版本时间线 ---------- */
.page-products .version-line {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-products .version-line__node {
  position: relative;
}

.page-products .version-card {
  border: 1px solid var(--slate-line);
  border-radius: var(--radius-m);
  background: linear-gradient(168deg, rgba(20, 27, 51, .92), rgba(8, 12, 18, .88));
  overflow: hidden;
  transition: border-color .18s var(--ease);
}

.page-products .version-card:hover,
.page-products .version-card[open] {
  border-color: var(--neon-green);
}

.page-products .version-card__summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 18px 14px;
  cursor: pointer;
  list-style: none;
}

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

.page-products .version-card__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  line-height: 1;
  color: var(--neon-green);
}

.page-products .version-card[open] .version-card__summary::after {
  content: "−";
  color: var(--ember-orange);
}

.page-products .version-card__ver {
  flex: 0 0 auto;
  font-size: 1.5rem;
  letter-spacing: .04em;
  color: var(--neon-green);
}

.page-products .version-card__title {
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--cool-white);
}

.page-products .version-card__body {
  margin: 0;
  padding: 14px 18px 18px;
  border-top: 1px solid rgba(42, 53, 66, .7);
  font-size: .9375rem;
  line-height: 1.76;
  color: var(--ink-dim);
}

/* ---------- 变更说明 ---------- */
.page-products .changelog {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(18px, 2.4vw, 28px);
  border-left: 4px solid var(--ember-orange);
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
  background: rgba(20, 27, 51, .58);
}

.page-products .changelog__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--cool-white);
}

.page-products .changelog__num {
  font-size: 2rem;
  line-height: 1;
  color: var(--ember-orange);
}

.page-products .changelog p {
  margin: 0 0 14px;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--ink-dim);
}

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

/* ---------- 节奏卡片 ---------- */
.page-products .rhythm-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-products .rhythm-card {
  padding: 22px 20px;
  border: 1px solid var(--slate-line);
  border-radius: var(--radius-m);
  background: linear-gradient(170deg, rgba(11, 59, 52, .55), rgba(8, 12, 18, .82));
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}

.page-products .rhythm-card:hover {
  transform: translateY(-4px);
  border-color: var(--electric-blue);
}

.page-products .rhythm-card__kicker {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .08em;
  color: var(--electric-blue);
}

.page-products .rhythm-card__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--cool-white);
}

.page-products .rhythm-card__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.76;
  color: var(--ink-dim);
}

/* ---------- 上手三步 ---------- */
.page-products .start-steps {
  list-style: none;
  margin: clamp(18px, 2.6vw, 30px) 0 0;
  padding: 0;
}

.page-products .start-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(42, 53, 66, .8);
}

.page-products .start-step:first-child { padding-top: 0; }

.page-products .start-step__num {
  font-size: 1.75rem;
  line-height: 1;
  color: var(--neon-green);
}

.page-products .start-step__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--cool-white);
}

.page-products .start-step__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--ink-dim);
}

.page-products .svc-outro {
  margin-top: clamp(20px, 2.8vw, 30px);
  padding: clamp(16px, 2.2vw, 22px) clamp(16px, 2.4vw, 26px);
  border: 1px dashed rgba(168, 255, 62, .38);
  border-radius: var(--radius-m);
  background: rgba(8, 12, 18, .5);
}

.page-products .svc-outro p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.82;
  color: var(--ink-dim);
}

.page-products .svc-figure {
  margin: clamp(24px, 3.4vw, 42px) 0 0;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .spec-list__item {
    grid-template-columns: minmax(96px, .3fr) minmax(0, 1fr);
  }

  .page-products .start-step {
    grid-template-columns: 68px minmax(0, 1fr);
    gap: 0 20px;
    align-items: baseline;
  }

  .page-products .start-step__num {
    text-align: right;
    padding-top: 2px;
  }
}

@media (min-width: 700px) {
  .page-products .rhythm-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-products .split-views {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-products .version-line {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    position: relative;
    padding-top: 30px;
  }

  .page-products .version-line::before {
    content: "";
    position: absolute;
    top: 12px;
    left: 7%;
    right: 7%;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--neon-green), var(--electric-blue) 50%, var(--ember-orange));
    opacity: .45;
  }

  .page-products .version-line__node::before {
    content: "";
    position: absolute;
    top: -23px;
    left: 50%;
    width: 10px;
    height: 10px;
    margin-left: -5px;
    border-radius: 50%;
    background: var(--arena-night);
    border: 2px solid var(--neon-green);
  }
}

@media (min-width: 960px) {
  .page-products .svc-block {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .svc-block--media-first {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  }

  .page-products .svc-block--media-first .svc-block__media {
    order: -1;
  }
}

@media (min-width: 1040px) {
  .page-products .rhythm-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 719px) {
  .page-products .svc-table thead {
    display: none;
  }

  .page-products .svc-table,
  .page-products .svc-table tbody,
  .page-products .svc-table tr,
  .page-products .svc-table th,
  .page-products .svc-table td {
    display: block;
    width: 100%;
  }

  .page-products .svc-table tbody tr {
    padding: 16px 0;
    border-bottom: 1px solid var(--slate-line);
  }

  .page-products .svc-table tbody tr:first-child { padding-top: 0; }

  .page-products .svc-table tbody tr:last-child {
    border-bottom: 0;
    padding-bottom: 0;
  }

  .page-products .svc-table tbody th,
  .page-products .svc-table tbody td {
    padding: 0;
    border: 0;
    white-space: normal;
  }

  .page-products .svc-table tbody th {
    padding-bottom: 10px;
    font-size: 1.125rem;
  }

  .page-products .svc-table tbody td {
    padding-bottom: 8px;
  }

  .page-products .svc-table tbody td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 2px;
    font-family: var(--font-mono);
    font-size: .6875rem;
    letter-spacing: .06em;
    color: var(--electric-blue);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .split-view,
  .page-products .rhythm-card {
    transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
  }

  .page-products .split-view:hover,
  .page-products .split-view:focus-within,
  .page-products .rhythm-card:hover {
    transform: none;
  }
}