.page-products {
  --pp-line: var(--line-600);
  --pp-surface: var(--indigo-700);
  --pp-radius: var(--radius-lg);
  background: var(--indigo-850);
  color: var(--slate-100);
}

.page-products .section {
  padding: clamp(48px, 8vw, 96px) 0;
}

/* ============ 首屏 ============ */
.page-products .exp-lede {
  padding-top: clamp(20px, 4vw, 44px);
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-products .exp-lede__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
}

.page-products h1 {
  font-size: clamp(30px, 6.4vw, 58px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 14px 0 22px;
  color: var(--slate-100);
}

.page-products .exp-lede__text {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--slate-350);
  max-width: 46ch;
  margin-bottom: 16px;
}

.page-products .exp-lede__text:first-of-type {
  color: var(--slate-100);
}

.page-products .exp-toc {
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius);
  padding: 22px 20px;
  background: rgba(27, 39, 80, 0.5);
}

.page-products .exp-toc__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-400);
  font-family: var(--font-mono);
  margin-bottom: 14px;
}

.page-products .exp-toc__list {
  list-style: none;
  counter-reset: toc;
  padding: 0;
  margin: 0;
}

.page-products .exp-toc__list li {
  counter-increment: toc;
  border-bottom: 1px solid rgba(46, 58, 107, 0.6);
}

.page-products .exp-toc__list li:last-child {
  border-bottom: none;
}

.page-products .exp-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  color: var(--slate-350);
  text-decoration: none;
  font-size: 14px;
  transition: color 180ms var(--ease);
}

.page-products .exp-toc__list a::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan-400);
  opacity: 0.75;
}

.page-products .exp-toc__list a:hover,
.page-products .exp-toc__list a:focus-visible {
  color: var(--cyan-400);
}

@media (min-width: 900px) {
  .page-products .exp-lede__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: clamp(40px, 6vw, 80px);
    align-items: start;
  }
}

/* ============ 端口切换区 ============ */
.page-products .exp-switch .filter-bar {
  margin: 26px 0 42px;
}

.page-products .exp-switch__list {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

/* ============ 功能卡片 ============ */
.page-products .port-block {
  position: relative;
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius);
  padding: clamp(22px, 4vw, 44px);
  background: linear-gradient(180deg, rgba(27, 39, 80, 0.72) 0%, rgba(16, 24, 56, 0.94) 100%);
  overflow: hidden;
}

.page-products .port-block::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-400), var(--violet-500) 45%, transparent 90%);
  opacity: 0.65;
}

.page-products .port-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-products .port-block__port {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-950);
  background: var(--cyan-400);
  border-radius: var(--radius-pill);
  padding: 4px 13px;
  flex-shrink: 0;
  font-weight: 600;
}

.page-products .port-block__title {
  font-size: clamp(20px, 3vw, 27px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--slate-100);
  margin: 0;
  letter-spacing: -0.01em;
}

.page-products .port-block__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-products .port-block__text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-350);
  margin-bottom: 14px;
}

.page-products .port-block__text p:first-child {
  color: var(--slate-100);
}

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

@media (min-width: 800px) {
  .page-products .port-block__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

/* 媒体占位 */
.page-products .port-block__media {
  margin-top: clamp(20px, 3.5vw, 32px);
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.page-products .media--tall.port-block__media {
  max-width: 440px;
  margin-left: auto;
  margin-right: auto;
}

/* ============ 两栏比例演示 ============ */
.page-products .split-demo {
  display: grid;
  grid-template-columns: 3fr 9fr;
  gap: 8px;
  min-height: 152px;
}

.page-products .split-demo__left,
.page-products .split-demo__right {
  border-radius: var(--radius-md);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .split-demo__left {
  background: rgba(255, 122, 46, 0.12);
  border: 1px solid rgba(255, 122, 46, 0.38);
}

.page-products .split-demo__right {
  background: rgba(43, 232, 210, 0.07);
  border: 1px solid rgba(43, 232, 210, 0.3);
}

.page-products .split-demo__tag {
  font-size: 10px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--slate-350);
  white-space: nowrap;
}

.page-products .split-demo__item {
  height: 11px;
  border-radius: 4px;
  background: rgba(255, 122, 46, 0.55);
}

.page-products .split-demo__line {
  height: 8px;
  border-radius: 4px;
  background: rgba(43, 232, 210, 0.38);
}

.page-products .split-demo__line--short {
  width: 55%;
}

.page-products .split-demo__caption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate-350);
}

/* ============ 指南维度 ============ */
.page-products .guide-dims {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-products .guide-dims__item {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 14px;
  row-gap: 3px;
  align-items: baseline;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: rgba(16, 24, 56, 0.62);
  border: 1px solid var(--pp-line);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-products .guide-dims__item:hover {
  border-color: var(--cyan-400);
  transform: translateY(-2px);
}

.page-products .guide-dims__num {
  grid-row: span 2;
  font-size: 26px;
  font-weight: 300;
  color: var(--cyan-400);
  line-height: 1;
}

.page-products .guide-dims__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--slate-100);
}

.page-products .guide-dims__desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--slate-350);
}

/* ============ 指标表 ============ */
.page-products .metric-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.page-products .metric-table th,
.page-products .metric-table td {
  padding: 10px 8px;
  text-align: left;
  border-bottom: 1px solid var(--pp-line);
}

.page-products .metric-table th {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate-350);
  font-weight: 500;
}

.page-products .metric-table tbody td:first-child {
  color: var(--slate-100);
}

.page-products .metric-table__num {
  text-align: right;
  color: var(--cyan-400);
  font-variant-numeric: tabular-nums;
}

.page-products .metric-table__note {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate-350);
}

/* ============ 案例方向标签 ============ */
.page-products .case-tags {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .case-tags__note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate-350);
}

/* ============ 快讯横条 ============ */
.page-products .marquee {
  margin-top: 26px;
  padding: 14px 0;
  overflow: hidden;
  border-top: 1px solid var(--pp-line);
  border-bottom: 1px solid var(--pp-line);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.page-products .marquee__track {
  display: flex;
  gap: 34px;
  width: max-content;
  animation: pp-marquee 36s linear infinite;
}

.page-products .marquee:hover .marquee__track,
.page-products .marquee:focus-within .marquee__track {
  animation-play-state: paused;
}

.page-products .marquee__item {
  font-size: 13px;
  color: var(--slate-350);
  white-space: nowrap;
}

@keyframes pp-marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============ 移动端速查栈 ============ */
.page-products .mobile-stack {
  display: grid;
  gap: 8px;
}

.page-products .mobile-stack__row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border-radius: var(--radius-md);
  background: rgba(16, 24, 56, 0.65);
  border: 1px solid var(--pp-line);
}

.page-products .mobile-stack__row--live {
  border-color: var(--cyan-400);
  background: rgba(43, 232, 210, 0.08);
}

.page-products .mobile-stack__time {
  flex-shrink: 0;
  min-width: 52px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
}

.page-products .mobile-stack__text {
  font-size: 14px;
  color: var(--slate-100);
}

/* ============ 注册步骤 ============ */
.page-products .register-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-products .register-steps__item {
  display: flex;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: rgba(16, 24, 56, 0.65);
  border: 1px solid var(--pp-line);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-products .register-steps__item:hover {
  border-color: var(--orange-500);
  transform: translateY(-2px);
}

.page-products .register-steps__num {
  flex-shrink: 0;
  font-size: 22px;
  font-weight: 300;
  line-height: 1.15;
  color: var(--orange-500);
}

.page-products .register-steps__title {
  font-size: 14px;
  font-weight: 700;
  color: var(--slate-100);
  margin-bottom: 3px;
}

.page-products .register-steps__desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--slate-350);
}

/* ============ 对照表 ============ */
.page-products .compare-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--pp-line);
  border-radius: var(--radius-md);
  -webkit-overflow-scrolling: touch;
}

.page-products .compare-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 13px;
}

.page-products .compare-table th,
.page-products .compare-table td {
  padding: 13px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--pp-line);
}

.page-products .compare-table thead th {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  white-space: nowrap;
  color: var(--cyan-400);
  background: rgba(16, 24, 56, 0.75);
}

.page-products .compare-table tbody th {
  font-weight: 600;
  white-space: nowrap;
  color: var(--slate-100);
}

.page-products .compare-table tbody td {
  color: var(--slate-350);
  transition: color 180ms var(--ease);
}

.page-products .compare-table tbody tr:hover td,
.page-products .compare-table tbody tr:hover th {
  color: var(--slate-100);
}

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

/* ============ 空状态 ============ */
.page-products .filter-empty {
  display: none;
  margin: 0;
  padding: 22px 0;
  font-size: 14px;
  color: var(--slate-350);
}

.page-products .filter-empty[data-visible] {
  display: block;
}

/* ============ 延伸阅读 ============ */
.page-products .exp-next {
  border-top: 1px solid var(--pp-line);
}

.page-products .exp-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 48px);
}

.page-products .exp-next__title {
  font-size: clamp(22px, 3.4vw, 33px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 10px 0 14px;
  color: var(--slate-100);
}

.page-products .exp-next__text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate-350);
  max-width: 38ch;
}

.page-products .exp-next__links {
  display: grid;
  gap: 10px;
}

.page-products .exp-next__link {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 16px;
  row-gap: 3px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--pp-line);
  background: rgba(27, 39, 80, 0.45);
  text-decoration: none;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), background 180ms var(--ease);
}

.page-products .exp-next__link:hover,
.page-products .exp-next__link:focus-visible {
  border-color: var(--cyan-400);
  transform: translateY(-2px);
  background: rgba(27, 39, 80, 0.78);
}

.page-products .exp-next__link-num {
  grid-row: span 2;
  font-size: 22px;
  font-weight: 300;
  line-height: 1.2;
  color: var(--cyan-400);
}

.page-products .exp-next__link-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--slate-100);
}

.page-products .exp-next__link-desc {
  font-size: 13px;
  line-height: 1.5;
  color: var(--slate-350);
}

@media (min-width: 860px) {
  .page-products .exp-next__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }
}

/* ============ 降低动态偏好 ============ */
@media (prefers-reduced-motion: reduce) {
  .page-products .marquee__track {
    animation: none;
  }

  .page-products .guide-dims__item:hover,
  .page-products .register-steps__item:hover,
  .page-products .exp-next__link:hover {
    transform: none;
  }
}
<<<END>>>