.page-products {
  --pp-ink: var(--ink);
  --pp-dark-line: rgba(234, 242, 245, .14);
  --pp-gap-s: clamp(10px, 1.6vw, 16px);
  --pp-gap-m: clamp(20px, 3vw, 36px);
  --pp-gap-l: clamp(40px, 6vw, 88px);
  background: var(--paper);
  color: var(--pp-ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-products .breadcrumb {
  padding-block: 14px;
}

/* ---------- 首屏 ---------- */
.page-products .exp-hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(24, 224, 208, .16) 0%, transparent 58%),
    linear-gradient(180deg, var(--harbor) 0%, var(--abyss) 100%);
  color: var(--paper);
  padding: clamp(24px, 4vw, 44px) 0 clamp(32px, 5vw, 64px);
  overflow: hidden;
}

.page-products .exp-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, var(--dark) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, var(--dark) 0 1px, transparent 1px 72px);
  opacity: .55;
  pointer-events: none;
}

.page-products .exp-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  top: -30%;
  width: 58%;
  height: 150%;
  background: linear-gradient(160deg, rgba(24, 224, 208, .16), rgba(255, 179, 71, .08));
  clip-path: polygon(38% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-products .exp-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--pp-gap-m);
  align-items: end;
}

.page-products .exp-hero-copy .eyebrow {
  color: var(--mist);
  letter-spacing: .18em;
  margin: 0 0 14px;
}

.page-products .exp-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 7vw, 74px);
  line-height: 1.06;
  letter-spacing: -.02em;
  max-width: 15ch;
}

.page-products .exp-lede {
  margin: 18px 0 0;
  max-width: 40ch;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.75;
  color: rgba(248, 251, 252, .82);
}

.page-products .exp-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .exp-hero-figure {
  margin: 0;
  position: relative;
}

.page-products .exp-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  clip-path: polygon(0 0, 100% 0, 100% 86%, 0 100%);
  border: 1px solid var(--pp-dark-line);
}

.page-products .exp-hero-figure figcaption {
  display: block;
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

/* ---------- 四功能索引 ---------- */
.page-products .exp-index {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(28px, 4vw, 48px);
  background: var(--pp-dark-line);
  border-block: 1px solid var(--pp-dark-line);
}

.page-products .exp-index-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "num title go"
    "desc desc desc";
  gap: 4px 12px;
  padding: 18px 16px;
  background: rgba(7, 26, 43, .82);
  color: var(--paper);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
}

.page-products .exp-index-num {
  grid-area: num;
  font-size: 12px;
  color: var(--amber);
  letter-spacing: .12em;
}

.page-products .exp-index-title {
  grid-area: title;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 20px);
}

.page-products .exp-index-go {
  grid-area: go;
  color: var(--cyan);
  font-size: 14px;
  transition: transform .18s var(--ease);
}

.page-products .exp-index-desc {
  grid-area: desc;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(248, 251, 252, .66);
}

.page-products .exp-index-item:hover,
.page-products .exp-index-item:focus-visible {
  background: var(--abyss);
  border-left-color: var(--cyan);
}

.page-products .exp-index-item:hover .exp-index-go,
.page-products .exp-index-item:focus-visible .exp-index-go {
  transform: translateX(4px);
}

/* ---------- 主栅格 ---------- */
.page-products .exp-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap-m);
  padding-block: var(--pp-gap-l);
}

.page-products .exp-flow {
  min-width: 0;
  display: grid;
  gap: var(--pp-gap-l);
}

.page-products .exp-block {
  min-width: 0;
  scroll-margin-top: 96px;
}

.page-products .exp-block-head .eyebrow {
  color: var(--steel);
  letter-spacing: .18em;
  margin: 0 0 10px;
}

.page-products .exp-block h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 42px);
  line-height: 1.16;
  letter-spacing: -.015em;
  max-width: 22ch;
  color: var(--ink);
}

.page-products .exp-block-lede {
  margin: 14px 0 0;
  max-width: 42ch;
  font-size: 15px;
  line-height: 1.85;
  color: #33454f;
}

.page-products .exp-path-label {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--steel);
  border-left: 2px solid var(--cyan);
  padding-left: 10px;
  word-break: break-all;
}

/* ---------- 演示面板 ---------- */
.page-products .exp-tabs {
  margin-top: var(--pp-gap-m);
}

.page-products .exp-tabs .tabbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .exp-tabs .tabbar-btn {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 9px 16px;
  color: var(--ink);
  background: var(--fog);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .16s var(--ease), color .16s var(--ease), border-color .16s var(--ease);
}

.page-products .exp-tabs .tabbar-btn:hover {
  border-color: var(--cyan);
}

.page-products .exp-tabs .tabbar-btn[aria-selected="true"],
.page-products .exp-tabs .tabbar-btn.is-active {
  background: var(--harbor);
  border-color: var(--harbor);
  color: var(--paper);
  box-shadow: inset 0 -3px 0 var(--amber);
}

.page-products .exp-panel {
  margin-top: 12px;
  padding: clamp(16px, 2.6vw, 28px);
  background: var(--fog);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-products .exp-panel + .exp-panel {
  margin-top: 8px;
}

.page-products .exp-panel h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 20px);
  color: var(--abyss);
}

.page-products .exp-panel p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: #33454f;
  max-width: 44ch;
}

.page-products .exp-fields,
.page-products .exp-tpl {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-products .exp-fields li {
  display: grid;
  grid-template-columns: minmax(88px, 116px) 1fr;
  gap: 10px;
  padding: 9px 0;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.6;
}

.page-products .exp-fields li:first-child {
  border-top: 0;
}

.page-products .exp-fields .mono {
  font-size: 12px;
  color: var(--steel);
  word-break: break-all;
}

.page-products .exp-tpl li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  color: var(--ink);
}

.page-products .exp-tpl li:first-child {
  border-top: 0;
}

.page-products .exp-tpl .mono {
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--amber-deep);
  border: 1px solid currentColor;
  padding: 1px 5px;
}

/* ---------- 收藏分组 ---------- */
.page-products .exp-groups {
  margin-top: var(--pp-gap-m);
  display: grid;
  gap: 2px;
  background: var(--line);
  border-block: 1px solid var(--line);
}

.page-products .exp-group {
  background: var(--paper);
  padding: 0 clamp(12px, 2vw, 20px);
}

.page-products .exp-group summary {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num title"
    "hint hint";
  gap: 2px 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  position: relative;
}

.page-products .exp-group summary::-webkit-details-marker {
  display: none;
}

.page-products .exp-group summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--steel);
  transition: color .16s var(--ease);
}

.page-products .exp-group[open] summary::after {
  content: "−";
  color: var(--cyan);
}

.page-products .exp-group-num {
  grid-area: num;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--amber-deep);
  padding-top: 4px;
}

.page-products .exp-group-title {
  grid-area: title;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--ink);
}

.page-products .exp-group-hint {
  grid-area: hint;
  font-size: 12.5px;
  color: var(--steel);
  padding-left: 0;
}

.page-products .exp-group p {
  margin: 0 0 18px;
  padding-left: 0;
  max-width: 42ch;
  font-size: 14px;
  line-height: 1.85;
  color: #33454f;
}

.page-products .exp-group summary:hover .exp-group-title {
  color: var(--abyss);
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-underline-offset: 5px;
}

/* ---------- 两步路径 ---------- */
.page-products .exp-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: var(--pp-gap-m);
}

.page-products .exp-step {
  position: relative;
  padding: 18px 18px 18px 22px;
  background: var(--harbor);
  color: var(--paper);
  border-radius: var(--radius);
}

.page-products .exp-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  background: var(--cyan);
}

.page-products .exp-step-num {
  display: block;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
  margin-bottom: 6px;
}

.page-products .exp-step strong {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}

.page-products .exp-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(248, 251, 252, .74);
}

/* ---------- 图 ---------- */
.page-products .exp-figure {
  margin: var(--pp-gap-m) 0 0;
}

.page-products .exp-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--fog);
}

.page-products .exp-figure figcaption {
  display: block;
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--steel);
}

/* ---------- 导出说明 ---------- */
.page-products .exp-note {
  margin-top: var(--pp-gap-m);
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--abyss);
  color: var(--paper);
  border-radius: var(--radius);
  display: grid;
  gap: 12px;
}

.page-products .exp-note p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(248, 251, 252, .8);
  max-width: 48ch;
}

.page-products .exp-note strong {
  color: var(--mist);
  margin-right: 6px;
}

/* ---------- 组合路径 ---------- */
.page-products .exp-routes {
  list-style: none;
  margin: var(--pp-gap-m) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
  counter-reset: route;
}

.page-products .exp-routes li {
  background: var(--paper);
  padding: 20px clamp(12px, 2vw, 22px);
  transition: background .18s var(--ease);
}

.page-products .exp-routes li:nth-child(even) {
  background: var(--fog);
}

.page-products .exp-routes li:hover {
  background: #dff3f6;
}

.page-products .exp-route-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--abyss);
  background: var(--amber);
  padding: 2px 8px;
  border-radius: var(--radius);
}

.page-products .exp-routes h3 {
  margin: 10px 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--ink);
}

.page-products .exp-routes p {
  margin: 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.85;
  color: #33454f;
}

.page-products .exp-routes a,
.page-products .exp-next a {
  color: var(--abyss);
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-products .exp-routes a:hover,
.page-products .exp-next a:hover {
  color: var(--amber-deep);
}

/* ---------- 版本 ---------- */
.page-products .exp-timeline {
  margin-top: var(--pp-gap-m);
  display: grid;
  gap: 0;
  border-left: 2px solid var(--line);
  padding-left: clamp(14px, 2.4vw, 26px);
}

.page-products .exp-timeline-row {
  position: relative;
  padding-bottom: 22px;
}

.page-products .exp-timeline-row::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(14px, 2.4vw, 26px) - 6px);
  top: 5px;
  width: 10px;
  height: 10px;
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: 50%;
}

.page-products .exp-timeline-row--now::before {
  background: var(--amber);
  border-color: var(--amber-deep);
}

.page-products .exp-timeline-key {
  display: block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--steel);
  margin-bottom: 4px;
}

.page-products .exp-timeline-row--now .exp-timeline-key {
  color: var(--amber-deep);
}

.page-products .exp-timeline-row p {
  margin: 0;
  max-width: 44ch;
  font-size: 14px;
  line-height: 1.85;
  color: #33454f;
}

.page-products .exp-after {
  margin: 0;
  padding: 16px 18px;
  background: var(--fog);
  border-left: 3px solid var(--success);
  font-size: 14px;
  line-height: 1.85;
  color: #33454f;
  max-width: 50ch;
}

/* ---------- 下一步 ---------- */
.page-products .exp-next {
  padding: clamp(22px, 3.4vw, 40px);
  background: linear-gradient(135deg, var(--abyss), var(--harbor));
  color: var(--paper);
  border-radius: var(--radius);
}

.page-products .exp-next h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: -.01em;
}

.page-products .exp-next p {
  margin: 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(248, 251, 252, .8);
}

.page-products .exp-next a {
  color: var(--mist);
}

.page-products .exp-next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 功能岛 ---------- */
.page-products .exp-island {
  order: -1;
  background: var(--harbor);
  color: var(--paper);
  border: 1px solid var(--pp-dark-line);
  border-radius: var(--radius);
  padding: 14px;
  min-width: 0;
}

.page-products .exp-island-title {
  margin: 0;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-products .exp-island-line {
  display: none;
  width: 100%;
  height: 24px;
  color: var(--cyan);
  opacity: .7;
  margin: 10px 0 4px;
}

.page-products .exp-island-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .exp-island-list li {
  flex: 0 0 auto;
}

.page-products .exp-island-list a {
  display: block;
  padding: 7px 12px;
  font-size: 13px;
  color: rgba(248, 251, 252, .78);
  text-decoration: none;
  border: 1px solid var(--pp-dark-line);
  border-radius: var(--radius);
  white-space: nowrap;
  transition: color .16s var(--ease), border-color .16s var(--ease), background .16s var(--ease);
}

.page-products .exp-island-list a:hover,
.page-products .exp-island-list a:focus-visible {
  color: var(--paper);
  border-color: var(--cyan);
  background: rgba(24, 224, 208, .1);
}

.page-products .exp-island-extra {
  display: none;
}

.page-products .exp-island-note {
  margin: 18px 0 12px;
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(248, 251, 252, .68);
  border-top: 1px solid var(--pp-dark-line);
  padding-top: 12px;
}

.page-products .exp-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
}

/* ---------- 中等屏 ---------- */
@media (min-width: 600px) {
  .page-products .exp-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .exp-group summary {
    grid-template-columns: 48px 1fr auto;
    grid-template-areas: "num title hint";
    align-items: baseline;
  }

  .page-products .exp-group-hint {
    text-align: right;
    padding-right: 26px;
  }

  .page-products .exp-group p {
    padding-left: 60px;
  }

  .page-products .exp-fields li {
    grid-template-columns: 132px 1fr;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-products .exp-hero-inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-products .exp-hero h1 {
    max-width: 13ch;
  }

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

  .page-products .exp-layout {
    grid-template-columns: minmax(0, 1fr) 288px;
    gap: clamp(36px, 4vw, 68px);
    align-items: start;
  }

  .page-products .exp-flow {
    grid-column: 1;
    grid-row: 1;
  }

  .page-products .exp-island {
    grid-column: 2;
    grid-row: 1;
    order: 0;
    position: sticky;
    top: 96px;
    padding: 18px;
    background: rgba(12, 43, 66, .92);
    border-color: rgba(24, 224, 208, .22);
    box-shadow: 0 18px 40px rgba(7, 26, 43, .28);
    backdrop-filter: blur(6px);
  }

  .page-products .exp-island-line {
    display: block;
  }

  .page-products .exp-island-list {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    margin-top: 14px;
  }

  .page-products .exp-island-list a {
    border-color: transparent;
    border-left: 2px solid transparent;
    padding: 8px 10px;
    white-space: normal;
  }

  .page-products .exp-island-list a:hover,
  .page-products .exp-island-list a:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(24, 224, 208, .08);
  }

  .page-products .exp-island-extra {
    display: block;
  }

  .page-products .exp-block-lede {
    margin-left: clamp(0px, 2vw, 24px);
  }
}

@media (min-width: 1280px) {
  .page-products .exp-layout {
    grid-template-columns: minmax(0, 1fr) 312px;
  }

  .page-products .exp-hero-figure figcaption {
    text-align: right;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .exp-index-item,
  .page-products .exp-index-go,
  .page-products .exp-tabs .tabbar-btn,
  .page-products .exp-island-list a,
  .page-products .exp-routes li {
    transition: none;
  }
}
<<<END>>>