/* ===== 功能与订阅 /features/ ===== */
.page-products {
  --pp-gap: clamp(56px, 7vw, 112px);
  --pp-edge: rgba(46, 68, 112, .6);
  --pp-cell: #101C3A;
  position: relative;
  overflow-x: clip;
  background:
    radial-gradient(80% 42% at 88% 0%, rgba(27, 18, 54, .88), transparent 66%),
    radial-gradient(60% 38% at 6% 62%, rgba(16, 28, 58, .9), transparent 70%),
    linear-gradient(180deg, #0B1224 0%, #0C1429 52%, #0B1224 100%);
}

.page-products .breadcrumbs {
  padding-top: clamp(18px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-products .feat-hero {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: var(--pp-gap);
}

.page-products .feat-hero__lead {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-products .feat-hero h1 {
  margin: 14px 0 0;
  max-width: 16ch;
  font-size: clamp(32px, 5.4vw, 60px);
  font-weight: 200;
  line-height: 1.08;
  letter-spacing: .02em;
  color: var(--cream);
}

.page-products .feat-hero__lede {
  margin: 22px 0 0;
  max-width: 48ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .feat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .feat-hero__plate {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 10;
  background: var(--indigo);
  border: 1px solid var(--pp-edge);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
  overflow: hidden;
}

.page-products .feat-hero__plate img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .feat-meter {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--pp-edge);
  border: 1px solid var(--pp-edge);
}

.page-products .feat-meter__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 18px 22px;
  background: var(--indigo);
}

.page-products .feat-meter__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1;
  color: var(--cyan);
}

.page-products .feat-meter__unit {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--cream);
}

.page-products .feat-meter__cap {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 通用区块 ---------- */
.page-products .feat-section {
  padding-bottom: var(--pp-gap);
}

.page-products .section-title {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.6vw, 42px);
  font-weight: 200;
  line-height: 1.18;
  letter-spacing: .015em;
  color: var(--cream);
}

.page-products .feat-section__intro {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .feat-split {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-products .feat-split__figure {
  margin: 0;
  border: 1px solid var(--pp-edge);
  background: var(--pp-cell);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
  overflow: hidden;
}

.page-products .feat-split__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .feat-split__figure figcaption {
  padding: 12px 16px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--pp-edge);
}

.page-products .prose {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .feat-inline-link {
  margin-top: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

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

.page-products a:hover {
  color: var(--orange);
}

/* ---------- 六格功能矩阵 ---------- */
.page-products .feat-matrix {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-products .feat-cell {
  position: relative;
  background:
    linear-gradient(155deg, rgba(79, 227, 208, .05), transparent 44%),
    var(--pp-cell);
  border: 1px solid var(--pp-edge);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  transition: border-color var(--dur) ease, background-color var(--dur) ease;
}

.page-products .feat-cell:hover,
.page-products .feat-cell:focus-within {
  border-color: var(--cyan);
}

.page-products .feat-cell[open] {
  border-color: rgba(79, 227, 208, .75);
  background:
    linear-gradient(155deg, rgba(79, 227, 208, .09), transparent 48%),
    var(--pp-cell);
}

.page-products .feat-cell > summary {
  display: grid;
  gap: 8px;
  padding: 24px 22px 22px;
  cursor: pointer;
  list-style: none;
}

.page-products .feat-cell > summary::-webkit-details-marker {
  display: none;
}

.page-products .feat-cell > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-products .feat-cell__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--red);
}

.page-products .feat-cell__title {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cream);
}

.page-products .feat-cell__param {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-products .feat-cell__hint {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-products .feat-cell[open] .feat-cell__hint {
  color: var(--orange);
}

.page-products .feat-cell__body {
  padding: 0 22px 24px;
  border-top: 1px dashed var(--pp-edge);
  margin: 0 22px 0;
  padding-left: 0;
  padding-right: 0;
}

.page-products .feat-cell__body p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 档位刻度 ---------- */
.page-products .feat-scale {
  margin: clamp(24px, 3vw, 36px) 0 0;
}

.page-products .feat-scale__row {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-top: 1px solid var(--pp-edge);
}

.page-products .feat-scale__row:last-child {
  border-bottom: 1px solid var(--pp-edge);
}

.page-products .feat-scale dt {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--cream);
}

.page-products .feat-scale dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 调取步骤 ---------- */
.page-products .feat-steps {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: ppstep;
  display: grid;
  gap: 22px;
}

.page-products .feat-steps__item {
  counter-increment: ppstep;
  position: relative;
  padding-left: 62px;
}

.page-products .feat-steps__item::before {
  content: counter(ppstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--red);
  border: 1px solid rgba(214, 72, 47, .6);
}

.page-products .feat-steps__item h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cream);
}

.page-products .feat-steps__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .feat-tag {
  padding: 24px 22px 26px;
  border: 1px solid rgba(26, 18, 12, .25);
}

.page-products .feat-tag .index-tag {
  display: inline-block;
  margin: 0 0 14px;
}

.page-products .feat-tag__line {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: #1A120C;
}

.page-products .feat-tag__line:last-child {
  margin-bottom: 0;
}

/* ---------- 播放速度 ---------- */
.page-products .feat-speed {
  display: flex;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--pp-edge);
  background: var(--pp-cell);
}

.page-products .feat-speed li {
  flex: 1 1 0;
  padding: 14px 4px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--cyan);
  border-right: 1px solid var(--pp-edge);
}

.page-products .feat-speed li:last-child {
  border-right: 0;
}

.page-products .feat-speed li .data-num {
  color: inherit;
}

/* ---------- 检索结果说明 ---------- */
.page-products .feat-result {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--pp-edge);
}

.page-products .feat-result__row {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pp-edge);
  transition: background-color var(--dur) ease;
}

.page-products .feat-result__row:hover {
  background: rgba(79, 227, 208, .05);
}

.page-products .feat-result__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-products .feat-result__val {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 设备差异 ---------- */
.page-products .feat-devices {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-products .feat-device {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 24px 30px;
  background: var(--pp-cell);
  border: 1px solid var(--pp-edge);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
  transition: border-color var(--dur) ease;
}

.page-products .feat-device--web {
  background:
    linear-gradient(160deg, rgba(79, 227, 208, .09), transparent 52%),
    var(--pp-cell);
  border-color: rgba(79, 227, 208, .45);
}

.page-products .feat-device--ios {
  background:
    linear-gradient(160deg, rgba(255, 138, 61, .09), transparent 52%),
    var(--pp-cell);
  border-color: rgba(255, 138, 61, .45);
}

.page-products .feat-device:hover {
  border-color: var(--cyan);
}

.page-products .feat-device__badge {
  align-self: flex-start;
  margin: 0;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--space);
  background: var(--cyan);
}

.page-products .feat-device__badge--muted {
  color: var(--cream);
  background: rgba(255, 138, 61, .85);
}

.page-products .feat-device__title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--cream);
}

.page-products .feat-device__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .feat-device__meta {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--pp-edge);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-products .feat-device__plate {
  margin: clamp(20px, 3vw, 32px) 0 0;
  border: 1px solid var(--pp-edge);
  background: var(--indigo);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
  overflow: hidden;
}

.page-products .feat-device__plate img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .feat-device__plate figcaption {
  padding: 12px 16px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--pp-edge);
}

/* ---------- 订阅周期与支持 ---------- */
.page-products .feat-plans {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-products .feat-plan {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 24px 30px;
  background:
    linear-gradient(180deg, rgba(79, 227, 208, .06), transparent 62%),
    var(--night);
  border: 1px solid var(--pp-edge);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-products .feat-plan--long {
  background:
    linear-gradient(180deg, rgba(255, 138, 61, .09), transparent 62%),
    var(--night);
  border-color: rgba(255, 138, 61, .5);
}

.page-products .feat-plan__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--red);
}

.page-products .feat-plan--long .feat-plan__idx {
  color: var(--orange);
}

.page-products .feat-plan__name {
  margin: 0;
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 200;
  letter-spacing: .04em;
  color: var(--cream);
}

.page-products .feat-plan__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .feat-plan__meta {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--pp-edge);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .feat-support__foot {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 26px;
  border-top: 1px solid var(--pp-edge);
}

.page-products .feat-support__foot .prose {
  margin-top: 0;
  max-width: 68ch;
}

.page-products .feat-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .feat-meter {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-products .feat-scale__row {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-products .feat-result__row {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

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

@media (min-width: 900px) {
  .page-products .feat-devices {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .feat-split--wide-left {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-products .feat-split--wide-right {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }
}

@media (min-width: 1080px) {
  .page-products .feat-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: end;
    column-gap: clamp(30px, 4vw, 64px);
  }

  .page-products .feat-hero__meter {
    grid-column: 1 / -1;
  }

  .page-products .feat-matrix {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .feat-cell,
  .page-products .feat-device,
  .page-products .feat-result__row {
    transition: none;
  }
}