.page-products {
  --pp-block-gap: clamp(30px, 5vw, 64px);
  --pp-band-pad: clamp(24px, 4.2vw, 56px);
  --pp-ink-soft: #24405f;
}

.page-products .breadcrumb {
  padding-top: 1.1rem;
}

/* ============ 首屏 ============ */
.page-products .tool-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(26px, 4.5vw, 58px) clamp(34px, 5.5vw, 72px);
}

.page-products .tool-hero::before {
  content: "";
  position: absolute;
  inset: -18% -12% auto auto;
  width: min(820px, 82vw);
  height: min(600px, 66vw);
  background: linear-gradient(135deg, rgba(255, 106, 31, .32), rgba(23, 224, 200, .16) 58%, rgba(23, 224, 200, 0) 80%);
  clip-path: polygon(30% 0, 100% 0, 100% 72%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-products .tool-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-products .tool-hero__kicker {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin: 0 0 1.1rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--neutral-blue);
}

.page-products .tool-hero h1 {
  margin: 0 0 1.1rem;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(2.05rem, 6.4vw, 3.75rem);
  line-height: 1.04;
  letter-spacing: -.015em;
  color: var(--mist-white);
}

.page-products .tool-hero__lede {
  max-width: 34em;
  margin: 0 0 1.7rem;
  font-size: 1.02rem;
  line-height: 1.85;
  color: rgba(242, 245, 249, .84);
}

.page-products .tool-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .tool-hero__aside {
  display: flex;
  justify-content: flex-start;
}

.page-products .tool-hero__scale {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
}

@media (min-width: 900px) {
  .page-products .tool-hero__grid {
    grid-template-columns: 1.08fr .92fr;
    align-items: center;
  }
  .page-products .tool-hero__aside {
    justify-content: flex-end;
  }
}

/* ============ 章节索引条 ============ */
.page-products .toc-band {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  background: rgba(11, 26, 46, .94);
  border-block: 1px solid var(--edge-blue);
  backdrop-filter: blur(6px);
}

.page-products .toc-band__inner {
  display: flex;
  gap: 1.4rem;
  overflow-x: auto;
  padding-block: .85rem;
  scrollbar-width: none;
}

.page-products .toc-band__inner::-webkit-scrollbar {
  display: none;
}

.page-products .toc-band .toc__link {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .05em;
  white-space: nowrap;
}

/* ============ 主题带通用 ============ */
.page-products .band-section {
  padding-block: var(--pp-block-gap);
  scroll-margin-top: calc(var(--header-h) + 64px);
}

.page-products .tool-band {
  position: relative;
  display: grid;
  gap: clamp(22px, 3.2vw, 40px);
  padding: var(--pp-band-pad);
  border-radius: var(--radius-l);
  background: var(--steel-blue);
  border: 1px solid var(--edge-blue);
  overflow: hidden;
}

.page-products .tool-band--light {
  background: var(--paper-grey);
  border-color: rgba(29, 58, 92, .18);
}

.page-products .tool-band__rail {
  display: flex;
  align-items: flex-end;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-products .tool-band__index {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(3.4rem, 9.5vw, 7rem);
  line-height: .8;
  letter-spacing: -.04em;
  color: rgba(255, 106, 31, .92);
}

.page-products .band-v4 .tool-band__index {
  color: rgba(23, 224, 200, .92);
}

.page-products .band-club .tool-band__index {
  color: rgba(143, 163, 188, .95);
}

.page-products .tool-band h2 {
  margin: 0 0 .95rem;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.16;
  letter-spacing: -.012em;
  color: var(--mist-white);
}

.page-products .tool-band p {
  max-width: 40em;
  margin: 0 0 1rem;
  line-height: 1.85;
  color: rgba(242, 245, 249, .84);
}

.page-products .tool-band--light h2 {
  color: var(--ink-blue);
}

.page-products .tool-band--light p {
  color: var(--pp-ink-soft);
}

.page-products .tool-band__media {
  min-width: 0;
}

.page-products .tool-band__media .media-frame {
  width: 100%;
}

.page-products .tool-band__body {
  min-width: 0;
}

@media (min-width: 880px) {
  .page-products .tool-band {
    grid-template-columns: minmax(130px, .26fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .tool-band__rail {
    flex-direction: column;
    align-items: flex-start;
  }
  .page-products .tool-band__media {
    grid-column: 2;
  }
}

/* ============ 步骤编号 ============ */
.page-products .steps {
  counter-reset: pp-step;
  display: grid;
  gap: .6rem;
  margin: 1.3rem 0 1.3rem;
  padding: 0;
  list-style: none;
}

.page-products .steps li {
  counter-increment: pp-step;
  position: relative;
  padding-left: 2.6rem;
  line-height: 1.75;
  color: rgba(242, 245, 249, .88);
}

.page-products .steps li::before {
  content: counter(pp-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .15em;
  font-family: var(--font-mono);
  font-size: .82rem;
  padding: .18rem .42rem;
  border-radius: var(--radius-s);
  background: rgba(255, 106, 31, .16);
  color: var(--amber);
}

/* ============ 要点列表 ============ */
.page-products .fact-list {
  display: grid;
  gap: .55rem;
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
}

.page-products .fact-list li {
  position: relative;
  padding-left: 1.15rem;
  line-height: 1.7;
  color: rgba(242, 245, 249, .86);
}

.page-products .fact-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: .48rem;
  height: .48rem;
  border-radius: 2px;
  background: var(--signal-orange);
}

.page-products .band-v4 .fact-list li::before {
  background: var(--neon-cyan);
}

.page-products .band-club .fact-list li::before {
  background: var(--neutral-blue);
}

.page-products .tool-band--light .fact-list li {
  color: var(--pp-ink-soft);
}

/* ============ V4 表格与折叠 ============ */
.page-products .v4-table {
  margin: 1.4rem 0 1.2rem;
  overflow-x: auto;
  border-radius: var(--radius-m);
  border: 1px solid rgba(29, 58, 92, .3);
  background: rgba(255, 255, 255, .55);
}

.page-products .v4-table__cap {
  padding: .85rem 1rem .2rem;
  text-align: left;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .06em;
  color: #3c5570;
}

.page-products .v4-table .data-table {
  min-width: 520px;
}

.page-products .v4-table .mono {
  font-family: var(--font-mono);
  color: #125a52;
}

.page-products .fold {
  margin-top: 1rem;
  border-top: 1px solid rgba(29, 58, 92, .22);
  padding-top: .9rem;
}

.page-products .fold__summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: .86rem;
  letter-spacing: .04em;
  color: #0f6b60;
}

.page-products .fold .fact-list li {
  color: var(--pp-ink-soft);
}

/* ============ 双版本对照 ============ */
.page-products .compare {
  display: grid;
  gap: 1rem;
  margin: 1.4rem 0 .6rem;
}

.page-products .compare__col {
  padding: 1.2rem 1.25rem;
  border-radius: var(--radius-m);
  border: 1px solid var(--edge-blue);
  background: rgba(11, 26, 46, .5);
}

.page-products .compare__col--old {
  border-left: 3px solid var(--neutral-blue);
}

.page-products .compare__col--new {
  border-left: 3px solid var(--neon-cyan);
}

.page-products .compare__label {
  margin: 0 0 .4rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--neutral-blue);
}

.page-products .compare__col--new .compare__label {
  color: var(--neon-cyan);
}

.page-products .compare .fact-list {
  margin-top: .5rem;
}

.page-products .clip-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .9rem;
  margin-top: 1.2rem;
}

.page-products .clip-note {
  font-size: .86rem;
  color: var(--neutral-blue);
}

@media (min-width: 720px) {
  .page-products .compare {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============ 章节抬头 ============ */
.page-products .section-head {
  margin-bottom: clamp(18px, 3vw, 32px);
}

.page-products .section-head__title {
  margin: 0 0 .5rem;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.15;
  letter-spacing: -.012em;
  color: var(--mist-white);
}

.page-products .section-head__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--neon-cyan);
}

/* ============ 电脑端布局 ============ */
.page-products .desk-layout {
  display: grid;
  gap: clamp(20px, 3.4vw, 40px);
}

.page-products .desk-layout__text p {
  max-width: 40em;
  margin: 0 0 1rem;
  line-height: 1.85;
  color: rgba(242, 245, 249, .84);
}

.page-products .desk-map {
  margin: 0;
}

.page-products .desk-map__grid {
  display: grid;
  gap: .55rem;
  padding: .8rem;
  min-height: 230px;
  border: 1px dashed var(--edge-blue);
  border-radius: var(--radius-m);
  background: rgba(10, 15, 22, .5);
  grid-template-columns: 1fr;
}

.page-products .desk-map__cell {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: .35rem;
  padding: 1rem;
  border-radius: var(--radius-s);
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--mist-white);
}

.page-products .desk-map__cell--lineup {
  background: linear-gradient(160deg, rgba(255, 106, 31, .26), rgba(255, 106, 31, .08));
  border: 1px solid rgba(255, 106, 31, .55);
}

.page-products .desk-map__cell--mid {
  background: rgba(29, 58, 92, .45);
  border: 1px dashed rgba(143, 163, 188, .6);
  color: var(--neutral-blue);
}

.page-products .desk-map__cell--right {
  background: linear-gradient(160deg, rgba(23, 224, 200, .18), rgba(143, 163, 188, .1));
  border: 1px solid rgba(23, 224, 200, .5);
}

.page-products .desk-map__cell--right em {
  font-style: normal;
  color: var(--neutral-blue);
}

.page-products .desk-map figcaption {
  margin-top: .7rem;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--neutral-blue);
}

.page-products .desk-photo {
  margin-top: clamp(22px, 3.4vw, 40px);
}

@media (min-width: 880px) {
  .page-products .desk-layout {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
  .page-products .desk-map__grid {
    grid-template-columns: 22% 1fr 26%;
    grid-template-rows: 1fr;
    min-height: 280px;
  }
}

/* ============ 一天三段 ============ */
.page-products .flow {
  display: grid;
  gap: 1rem;
}

.page-products .flow__step {
  padding: 1.35rem 1.4rem;
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
  background: rgba(18, 38, 63, .72);
  border: 1px solid var(--edge-blue);
  border-left-width: 3px;
}

.page-products .flow__step--pre {
  border-left-color: var(--signal-orange);
}

.page-products .flow__step--live {
  border-left-color: var(--neon-cyan);
}

.page-products .flow__step--post {
  border-left-color: var(--neutral-blue);
}

.page-products .flow__time {
  margin: 0 0 .5rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--neutral-blue);
}

.page-products .flow__step h3 {
  margin: 0 0 .5rem;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 1.22rem;
  letter-spacing: -.01em;
  color: var(--mist-white);
}

.page-products .flow__step p {
  margin: 0;
  line-height: 1.8;
  color: rgba(242, 245, 249, .8);
}

@media (min-width: 840px) {
  .page-products .flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ============ 版本沿革 ============ */
.page-products .version-wrap {
  display: grid;
  gap: clamp(20px, 3.4vw, 40px);
}

.page-products .version-list {
  display: grid;
  gap: .9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .version-list li {
  display: grid;
  gap: .5rem;
  padding: 1.1rem 1.2rem;
  border-radius: var(--radius-m);
  background: rgba(11, 26, 46, .62);
  border: 1px solid var(--edge-blue);
}

.page-products .version-list .mono-id {
  justify-self: start;
}

.page-products .version-list h3 {
  margin: 0 0 .35rem;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: -.01em;
  color: var(--mist-white);
}

.page-products .version-list p {
  margin: 0;
  line-height: 1.78;
  color: rgba(242, 245, 249, .8);
}

.page-products .version-side {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-products .version-side .media-frame {
  width: 100%;
}

.page-products .version-side__note {
  margin: 0;
  line-height: 1.8;
  color: var(--neutral-blue);
}

.page-products .version-side__note a {
  color: var(--neon-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (min-width: 860px) {
  .page-products .version-list li {
    grid-template-columns: 6rem minmax(0, 1fr);
    align-items: baseline;
  }
  .page-products .version-wrap {
    grid-template-columns: 1.25fr .75fr;
    align-items: start;
  }
}

/* ============ 收尾 ============ */
.page-products .closing {
  padding: var(--pp-band-pad);
  border-radius: var(--radius-l);
  border: 1px solid var(--edge-blue);
  background:
    radial-gradient(circle at 12% 0%, rgba(255, 106, 31, .2), rgba(255, 106, 31, 0) 58%),
    radial-gradient(circle at 92% 100%, rgba(23, 224, 200, .18), rgba(23, 224, 200, 0) 62%),
    var(--charcoal);
}

.page-products .closing h2 {
  margin: 0 0 .9rem;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  letter-spacing: -.012em;
  color: var(--mist-white);
}

.page-products .closing p {
  max-width: 42em;
  margin: 0 0 1.5rem;
  line-height: 1.85;
  color: rgba(242, 245, 249, .84);
}

.page-products .closing a {
  color: var(--neon-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .closing__links {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .closing__links .btn {
  color: inherit;
  text-decoration: none;
}

/* ============ 图片容器兜底 ============ */
.page-products img {
  max-width: 100%;
  height: auto;
}

.page-products .media-frame img {
  object-fit: cover;
}

@media (prefers-reduced-motion: reduce) {
  .page-products .toc-band {
    backdrop-filter: none;
  }
}