.page-products {
  --prod-toc-w: 228px;
  --prod-tile: 18px;
  background: var(--yta-paper);
  color: var(--yta-ink);
  font-family: var(--yta-font-body);
  overflow-x: clip;
}

.page-products a {
  color: var(--yta-blue-bright);
  text-decoration: none;
}

.page-products a:hover {
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  padding: calc(var(--yta-header-h) + 20px) 0 40px;
  background:
    radial-gradient(120% 90% at 88% -12%, rgba(0, 166, 178, 0.18), rgba(0, 166, 178, 0) 62%),
    linear-gradient(180deg, #E9F3FA 0%, var(--yta-paper) 76%);
  border-bottom: 1px solid var(--yta-line);
  overflow: hidden;
}

.page-products .prod-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(11, 74, 143, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 74, 143, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 84%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 84%);
  pointer-events: none;
}

.page-products .prod-hero .yta-container {
  position: relative;
  z-index: 1;
}

.page-products .prod-crumb {
  margin-bottom: 22px;
}

.page-products .prod-hero__inner {
  display: grid;
  gap: 26px;
}

.page-products .prod-hero__lead h1 {
  margin: 10px 0 14px;
  font-family: var(--yta-font-head);
  font-size: clamp(1.85rem, 5.4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-ink);
}

.page-products .prod-hero__desc {
  margin: 0 0 22px;
  max-width: 34em;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--yta-graphite);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.page-products .prod-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--yta-line);
}

.page-products .prod-metrics dt {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--yta-graphite);
}

.page-products .prod-metrics dd {
  margin: 4px 0 0;
  font-family: var(--yta-font-head);
  font-size: clamp(1.35rem, 4vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--yta-blue-deep);
}

.page-products .prod-metrics dd small {
  font-size: 0.7rem;
  font-weight: 500;
  margin-left: 3px;
  color: var(--yta-graphite);
}

.page-products .prod-hero__figure {
  margin: 0;
  border: 1px solid var(--yta-line);
  background: var(--yta-white);
  overflow: hidden;
}

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

/* ---------- 四格服务入口 ---------- */
.page-products .prod-board {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

.page-products .prod-board__cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 18px 18px;
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-top-width: 3px;
  border-radius: var(--yta-radius);
  color: var(--yta-ink);
  transition: transform var(--yta-dur) var(--yta-ease), box-shadow var(--yta-dur) var(--yta-ease);
}

.page-products .prod-board__cell:hover,
.page-products .prod-board__cell:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(11, 74, 143, 0.12);
  text-decoration: none;
}

.page-products .prod-board__dot {
  width: 8px;
  height: 8px;
  background: var(--yta-cyan);
}

.page-products .prod-board__cell--download { border-top-color: var(--yta-blue-bright); }
.page-products .prod-board__cell--login { border-top-color: var(--yta-cyan); }
.page-products .prod-board__cell--family { border-top-color: var(--yta-violet); }
.page-products .prod-board__cell--ent { border-top-color: var(--yta-warm); }

.page-products .prod-board__cell--family .prod-board__dot { background: var(--yta-violet); }
.page-products .prod-board__cell--ent .prod-board__dot { background: var(--yta-warm); }
.page-products .prod-board__cell--download .prod-board__dot { background: var(--yta-blue-bright); }

.page-products .prod-board__kicker {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--yta-graphite);
}

.page-products .prod-board__title {
  font-family: var(--yta-font-head);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--yta-ink);
}

.page-products .prod-board__text {
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--yta-graphite);
}

.page-products .prod-board__link {
  margin-top: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--yta-blue-deep);
}

.page-products .prod-board__link::after {
  content: " →";
  color: var(--yta-cyan);
}

/* ---------- 主体与右侧目录 ---------- */
.page-products .prod-layout {
  display: grid;
  gap: 28px;
  padding: 34px 0 56px;
}

.page-products .prod-main {
  min-width: 0;
}

.page-products .prod-toc {
  order: -1;
  border: 1px solid var(--yta-line);
  border-left: 3px solid var(--yta-cyan);
  background: var(--yta-white);
  padding: 14px 16px;
  border-radius: var(--yta-radius);
}

.page-products .prod-toc__title {
  margin: 0 0 10px;
  font-family: var(--yta-font-head);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--yta-blue-deep);
}

.page-products .prod-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .prod-toc__list a {
  display: inline-block;
  white-space: nowrap;
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--yta-graphite);
  border: 1px solid var(--yta-line);
  border-radius: 999px;
  background: var(--yta-paper);
}

.page-products .prod-toc__list a:hover,
.page-products .prod-toc__list a:focus-visible {
  color: var(--yta-white);
  background: var(--yta-blue-deep);
  border-color: var(--yta-blue-deep);
  text-decoration: none;
}

.page-products .prod-toc__back {
  display: none;
}

/* ---------- 通用小节 ---------- */
.page-products .prod-sec {
  padding: 34px 0;
  border-top: 1px solid var(--yta-line);
}

.page-products .prod-sec:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-products .prod-sec__head h2 {
  margin: 8px 0 12px;
  font-family: var(--yta-font-head);
  font-size: clamp(1.35rem, 3.6vw, 1.9rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-ink);
}

.page-products .prod-sec__head > p:last-child {
  margin: 0;
  max-width: 40em;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--yta-graphite);
}

.page-products .prod-sec__head {
  margin-bottom: 24px;
}

.page-products .prod-sec--mist {
  padding: 28px 20px;
  border-left: 3px solid var(--yta-cyan);
  border-top-color: transparent;
  background: linear-gradient(180deg, rgba(205, 237, 234, 0.62), rgba(205, 237, 234, 0.16));
  border-radius: var(--yta-radius);
  margin-bottom: 34px;
}

.page-products .prod-note {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--yta-line);
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--yta-graphite);
}

.page-products .prod-figure {
  margin: 24px 0 0;
  border: 1px solid var(--yta-line);
  background: var(--yta-white);
  overflow: hidden;
}

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

.page-products .prod-figure figcaption {
  padding: 10px 14px 12px;
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--yta-graphite);
  border-top: 1px solid var(--yta-line);
  background: var(--yta-paper);
}

/* ---------- 安装步骤 ---------- */
.page-products .prod-download {
  display: grid;
  gap: 22px;
}

.page-products .prod-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-products .prod-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-products .prod-step__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  font-family: var(--yta-font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--yta-white);
  background: var(--yta-blue-deep);
  border-radius: var(--yta-radius);
}

.page-products .prod-step__body h3 {
  margin: 4px 0 6px;
  font-family: var(--yta-font-head);
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--yta-ink);
}

.page-products .prod-step__body p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--yta-graphite);
}

.page-products .prod-check {
  padding: 18px;
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-radius: var(--yta-radius);
}

.page-products .prod-check__title {
  margin: 0 0 12px;
  font-family: var(--yta-font-head);
  font-size: 0.86rem;
  font-weight: 800;
  color: var(--yta-blue-deep);
}

.page-products .prod-check__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-products .prod-check__list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--yta-font-mono);
  font-size: 0.82rem;
  color: var(--yta-ink);
  padding: 8px 10px;
  background: var(--yta-paper);
  border-left: 2px solid var(--yta-cyan);
}

.page-products .prod-check__list span {
  color: var(--yta-cyan);
  font-weight: 700;
}

/* ---------- 登录 ---------- */
.page-products .prod-login {
  display: grid;
  gap: 14px;
}

.page-products .prod-login__card {
  padding: 18px;
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-radius: var(--yta-radius);
}

.page-products .prod-login__card h3 {
  margin: 0 0 8px;
  font-family: var(--yta-font-head);
  font-size: 1rem;
  font-weight: 800;
  color: var(--yta-ink);
}

.page-products .prod-login__card p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--yta-graphite);
}

.page-products .prod-login__card--accent {
  background: linear-gradient(140deg, rgba(30, 111, 217, 0.08), rgba(0, 166, 178, 0.06));
  border-color: var(--yta-blue-bright);
}

/* ---------- 同步交错网格 ---------- */
.page-products .prod-blocks {
  display: grid;
  gap: 14px;
}

.page-products .prod-block {
  margin: 0;
  padding: 20px 18px;
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-radius: var(--yta-radius);
}

.page-products .prod-block h3 {
  margin: 0 0 8px;
  font-family: var(--yta-font-head);
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--yta-ink);
}

.page-products .prod-block p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--yta-graphite);
}

.page-products .prod-block--wide {
  border-left: 4px solid var(--yta-cyan);
  background: linear-gradient(160deg, rgba(0, 166, 178, 0.09), var(--yta-white) 62%);
}

.page-products .prod-block__stat {
  margin-top: 12px !important;
  font-family: var(--yta-font-head);
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--yta-blue-deep);
  line-height: 1;
}

.page-products .prod-block__stat small {
  font-size: 0.9rem;
  margin-left: 2px;
  color: var(--yta-cyan);
}

.page-products .prod-block--img {
  padding: 0;
  overflow: hidden;
  background: var(--yta-white);
}

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

.page-products .prod-block--img figcaption {
  padding: 10px 14px 12px;
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--yta-graphite);
  border-top: 1px solid var(--yta-line);
}

/* ---------- 家庭共享 ---------- */
.page-products .prod-family {
  display: grid;
  gap: 20px;
}

.page-products .prod-family__facts {
  display: grid;
  gap: 0;
  border: 1px solid var(--yta-line);
  background: var(--yta-white);
  border-radius: var(--yta-radius);
  overflow: hidden;
}

.page-products .prod-fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 16px;
  border-bottom: 1px dashed var(--yta-line);
}

.page-products .prod-fact:last-child {
  border-bottom: 0;
}

.page-products .prod-fact__k {
  font-size: 0.82rem;
  color: var(--yta-graphite);
}

.page-products .prod-fact__v {
  font-family: var(--yta-font-head);
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--yta-blue-deep);
  text-align: right;
}

.page-products .prod-family__cta {
  display: grid;
  gap: 14px;
  justify-items: start;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(11, 74, 143, 0.14);
}

.page-products .prod-family__cta p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--yta-ink);
}

/* ---------- 企业空间 ---------- */
.page-products .prod-ent {
  display: grid;
  gap: 18px;
}

.page-products .prod-ent__panel {
  padding: 20px 18px;
  background: var(--yta-ink);
  border-radius: var(--yta-radius);
  color: var(--yta-white);
}

.page-products .prod-ent__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 12px;
  margin-bottom: 16px;
}

.page-products .prod-ent__stats b {
  display: block;
  font-family: var(--yta-font-head);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--yta-white);
}

.page-products .prod-ent__stats span {
  font-size: 0.74rem;
  color: rgba(255, 255, 255, 0.72);
}

.page-products .prod-ent__panel p {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.86rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.86);
}

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

.page-products .prod-flow__title {
  margin: 26px 0 14px;
  font-family: var(--yta-font-head);
  font-size: 1rem;
  font-weight: 800;
  color: var(--yta-ink);
}

.page-products .prod-flow {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-products .prod-flow li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 12px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--yta-ink);
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-radius: var(--yta-radius);
}

.page-products .prod-flow__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  font-family: var(--yta-font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--yta-blue-deep);
  background: var(--yta-mist);
  border-radius: 999px;
}

/* ---------- 版本 ---------- */
.page-products .prod-ver {
  display: grid;
  gap: 0;
  margin: 0;
  border: 1px solid var(--yta-line);
  background: var(--yta-white);
  border-radius: var(--yta-radius);
  overflow: hidden;
}

.page-products .prod-ver > div {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--yta-line);
}

.page-products .prod-ver > div:last-child {
  border-bottom: 0;
}

.page-products .prod-ver dt {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--yta-graphite);
}

.page-products .prod-ver dd {
  margin: 0;
  font-family: var(--yta-font-head);
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--yta-ink);
}

.page-products .prod-ver__contact {
  margin-top: 20px;
  padding: 18px;
  border: 1px solid var(--yta-line);
  border-left: 3px solid var(--yta-warm);
  background: var(--yta-white);
  border-radius: var(--yta-radius);
}

.page-products .prod-ver__contact > p {
  margin: 0 0 12px;
  font-size: 0.88rem;
  color: var(--yta-graphite);
}

.page-products .prod-ver__contact .yta-contact-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-top: 1px dashed var(--yta-line);
  font-size: 0.86rem;
  flex-wrap: wrap;
}

.page-products .prod-ver__contact .yta-contact-row__key {
  flex: 0 0 auto;
  color: var(--yta-graphite);
}

.page-products .prod-ver__contact .yta-contact-row__value {
  font-family: var(--yta-font-mono);
  font-weight: 600;
  color: var(--yta-blue-deep);
  word-break: break-all;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 620px) {
  .page-products .prod-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-products .prod-block--wide,
  .page-products .prod-block--img {
    grid-column: span 2;
  }

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

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

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

  .page-products .prod-check__list li {
    flex-direction: column;
    gap: 4px;
  }
}

@media (min-width: 860px) {
  .page-products .prod-hero {
    padding-top: calc(var(--yta-header-h) + 44px);
    padding-bottom: 56px;
  }

  .page-products .prod-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: center;
    gap: 40px;
  }

  .page-products .prod-board {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: 44px;
  }

  .page-products .prod-download {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    gap: 28px;
  }

  .page-products .prod-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    padding-top: 18px;
  }

  .page-products .prod-step {
    display: block;
    position: relative;
    padding-top: 22px;
    border-top: 2px solid var(--yta-line);
  }

  .page-products .prod-step__num {
    position: absolute;
    top: -17px;
    left: 0;
  }

  .page-products .prod-step__body h3 {
    margin-top: 0;
  }

  .page-products .prod-figure--tall {
    margin-top: 0;
  }

  .page-products .prod-family {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: 26px;
  }

  .page-products .prod-figure--family {
    margin-top: 0;
  }

  .page-products .prod-family__cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-products .prod-ent {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
    gap: 24px;
  }

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

  .page-products .prod-ver > div {
    border-right: 1px solid var(--yta-line);
  }

  .page-products .prod-ver > div:nth-child(2n) {
    border-right: 0;
  }

  .page-products .prod-ver > div:last-child {
    grid-column: span 2;
    border-right: 0;
  }

  .page-products .prod-sec--mist {
    padding: 32px 28px;
  }
}

@media (min-width: 1000px) {
  .page-products .prod-layout {
    grid-template-columns: minmax(0, 1fr) var(--prod-toc-w);
    gap: 46px;
    padding-top: 46px;
  }

  .page-products .prod-toc {
    order: 0;
    position: sticky;
    top: calc(var(--yta-header-h) + 20px);
    align-self: start;
    padding: 18px;
  }

  .page-products .prod-toc__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .prod-toc__list a {
    display: block;
    padding: 8px 10px;
    border: 0;
    border-left: 2px solid var(--yta-line);
    border-radius: 0;
    background: transparent;
    font-weight: 600;
  }

  .page-products .prod-toc__list a:hover,
  .page-products .prod-toc__list a:focus-visible {
    color: var(--yta-blue-deep);
    background: var(--yta-paper);
    border-left-color: var(--yta-cyan);
    text-decoration: none;
  }

  .page-products .prod-toc__back {
    display: inline-block;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--yta-line);
    width: 100%;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--yta-graphite);
  }

  .page-products .prod-toc__back::before {
    content: "← ";
    color: var(--yta-cyan);
  }

  .page-products .prod-blocks {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }

  .page-products .prod-block--wide {
    grid-column: span 1;
  }

  .page-products .prod-block--img {
    grid-column: span 2;
  }

  .page-products .prod-flow {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-board__cell {
    transition: none;
  }

  .page-products .prod-board__cell:hover,
  .page-products .prod-board__cell:focus-visible {
    transform: none;
  }
}
<<<END>>>