.page-products {
  --sv-cut: 18px;
  --sv-radius-none: 0;
}

/* ---------- HERO ---------- */
.page-products .sv-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 48px) 0 clamp(36px, 6vw, 72px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-800);
}

.page-products .sv-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(47, 217, 232, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(47, 217, 232, 0.08) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(130% 100% at 8% 0%, #000 0%, transparent 74%);
  mask-image: radial-gradient(130% 100% at 8% 0%, #000 0%, transparent 74%);
  pointer-events: none;
}

.page-products .sv-hero::after {
  content: "";
  position: absolute;
  top: -170px;
  right: -130px;
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(255, 106, 31, 0.16), transparent 66%);
  pointer-events: none;
}

.page-products .sv-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--sp-4);
}

.page-products .sv-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .sv-hero h1 {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-display);
  font-size: clamp(30px, 6.2vw, 58px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--text);
  max-width: 20ch;
}

.page-products .sv-hero__intro {
  margin: 0;
  max-width: 46ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
}

.page-products .sv-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--sp-3);
}

.page-products .sv-hero__index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  align-self: start;
}

.page-products .sv-hero__index li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 12px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .sv-hero__no {
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-products .sv-hero__nm {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-products .sv-hero__tag {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

@media (min-width: 980px) {
  .page-products .sv-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: var(--sp-5);
    align-items: start;
  }
}

/* ---------- SECTIONS ---------- */
.page-products .sv-section {
  padding: clamp(40px, 7vw, 88px) 0;
}

.page-products .sv-section + .sv-section {
  border-top: 1px solid var(--line);
}

/* ---------- MODULE ALIGNMENT LAYOUT ---------- */
.page-products .sv-mods {
  display: grid;
  gap: 22px;
  margin-top: var(--sp-4);
}

.page-products .sv-mod {
  position: relative;
  display: grid;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-3);
  background: var(--ink-800);
  border: 1px solid var(--line);
  clip-path: var(--cut-tr);
}

.page-products .sv-mod::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--line);
  transition: background 0.2s ease;
}

.page-products .sv-mod:hover::before,
.page-products .sv-mod:focus-within::before {
  background: var(--cyan);
}

.page-products .sv-mod__side {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.page-products .sv-mod__no {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-products .sv-mod__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.6vw, 27px);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-products .sv-mod__kpi {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-soft);
}

.page-products .sv-mod__body {
  min-width: 0;
}

.page-products .sv-mod__body > p {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-products .sv-mod__figure {
  margin: var(--sp-3) 0 0;
}

.page-products .sv-mod__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: grid;
  gap: 10px;
}

.page-products .sv-mod__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .sv-mod__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}

.page-products .sv-mod__ref {
  margin: var(--sp-2) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .sv-mod__ref a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 217, 232, 0.4);
}

.page-products .sv-mod__ref a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

.page-products .sv-mod__more {
  margin-top: var(--sp-2);
  border-top: 1px dashed var(--line);
}

.page-products .sv-mod__more > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 0 10px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  font-weight: 700;
  color: var(--cyan);
}

.page-products .sv-mod__more > summary::-webkit-details-marker {
  display: none;
}

.page-products .sv-mod__more > summary::after {
  content: "";
  width: 8px;
  height: 8px;
  margin-left: auto;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.2s ease;
}

.page-products .sv-mod__more[open] > summary::after {
  transform: rotate(-135deg) translateY(-2px);
}

.page-products .sv-mod__more[open] > summary {
  color: var(--cyan-soft);
}

@media (min-width: 900px) {
  .page-products .sv-mod {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: var(--sp-4);
    padding: var(--sp-4) var(--sp-3);
  }
}

/* ---------- 约赛步骤条 ---------- */
.page-products .sv-steps {
  list-style: none;
  margin: var(--sp-3) 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-products .sv-step {
  position: relative;
  padding-top: 26px;
}

.page-products .sv-step::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  right: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 13px);
}

.page-products .sv-step::after {
  content: "";
  position: absolute;
  top: 5px;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-products .sv-step__no {
  display: block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan-soft);
}

.page-products .sv-step strong {
  display: block;
  margin: 4px 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.page-products .sv-step__txt {
  display: block;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

@media (min-width: 760px) {
  .page-products .sv-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 客户端 / 同步 ---------- */
.page-products .sv-app {
  background: var(--ink-800);
}

.page-products .sv-app__inner {
  display: grid;
  gap: var(--sp-4);
  align-items: start;
}

.page-products .sv-app__copy > p {
  margin: var(--sp-3) 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-products .sv-sync {
  list-style: none;
  margin: var(--sp-3) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .sv-sync li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 14px;
  background: var(--ink-700);
  border-left: 2px solid var(--cyan);
  font-size: 15px;
  color: var(--text);
  clip-path: var(--cut-bl);
}

.page-products .sv-sync .mono {
  min-width: 42px;
  font-size: 15px;
  font-weight: 700;
  color: var(--orange);
}

.page-products .sv-pulse {
  display: block;
  width: min(100%, 320px);
  height: auto;
  margin-top: var(--sp-3);
  opacity: 0.9;
}

.page-products .sv-pulse__line {
  stroke: var(--cyan);
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-dasharray: 6 5;
}

.page-products .sv-pulse__a {
  fill: var(--cyan);
}

.page-products .sv-pulse__b {
  fill: var(--orange);
}

.page-products .sv-app__figure {
  margin: 0;
  max-width: 340px;
}

@media (min-width: 900px) {
  .page-products .sv-app__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    gap: var(--sp-5);
  }
}

/* ---------- 场景横向轨道 ---------- */
.page-products .sv-scenes {
  padding-bottom: clamp(28px, 4vw, 48px);
  overflow: hidden;
}

.page-products .sv-scenes__track {
  display: flex;
  gap: 18px;
  margin-top: var(--sp-4);
  padding: 4px var(--gutter) 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-color: var(--line) transparent;
}

.page-products .sv-scenes__track:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-products .sv-scene {
  flex: 0 0 min(330px, 84vw);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--sp-3);
  background: var(--ink-800);
  border-top: 3px solid var(--cyan);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  clip-path: var(--cut-tr);
}

.page-products .sv-scene__role {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-products .sv-scene h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  color: var(--text);
}

.page-products .sv-scene p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-products .sv-scene__list {
  list-style: none;
  margin: auto 0 0;
  padding: var(--sp-2) 0 0;
  display: grid;
  gap: 8px;
  border-top: 1px dashed var(--line);
}

.page-products .sv-scene__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .sv-scene__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--green);
  transform: rotate(45deg);
}

@media (min-width: 1000px) {
  .page-products .sv-scenes__track {
    padding-inline: max(var(--gutter), calc((100vw - var(--shell-max)) / 2));
  }
}

/* ---------- 下载 + 流程 ---------- */
.page-products .sv-download__grid {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-4);
  align-items: start;
}

.page-products .sv-download__panels {
  display: grid;
  gap: 12px;
}

.page-products .sv-dl {
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  clip-path: var(--cut-tr);
  transition: border-left-color 0.2s ease;
}

.page-products .sv-dl[open] {
  border-left-color: var(--cyan);
  background: var(--ink-700);
}

.page-products .sv-dl > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-products .sv-dl > summary::-webkit-details-marker {
  display: none;
}

.page-products .sv-dl__key {
  min-width: 66px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-products .sv-dl[open] .sv-dl__key {
  color: var(--green);
}

.page-products .sv-dl__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-products .sv-dl > p {
  margin: 0;
  padding: 0 18px 18px 96px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .sv-download__figure {
  margin: 0;
}

.page-products .sv-flow {
  list-style: none;
  margin: var(--sp-5) 0 0;
  padding: 0;
}

.page-products .sv-flow__item {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: var(--sp-4);
}

.page-products .sv-flow__item:last-child {
  padding-bottom: 0;
}

.page-products .sv-flow__item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 19px;
  top: 46px;
  bottom: 6px;
  width: 1px;
  background: repeating-linear-gradient(180deg, var(--line) 0 6px, transparent 6px 13px);
}

.page-products .sv-flow__no {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 14px;
  font-weight: 700;
  color: var(--cyan);
  background: var(--ink-800);
  border: 1px solid var(--cyan);
  clip-path: var(--cut-bl);
}

.page-products .sv-flow__item h3 {
  margin: 6px 0 6px;
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}

.page-products .sv-flow__item p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .sv-download__cta {
  margin-top: var(--sp-4);
  padding: var(--sp-3);
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-top: 2px solid var(--orange);
  clip-path: var(--cut-tr);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.page-products .sv-download__cta p {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-products .sv-download__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--sp-5);
  }

  .page-products .sv-download__cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
  }

  .page-products .sv-download__cta p {
    max-width: 46ch;
  }

  .page-products .sv-flow {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 18px;
  }

  .page-products .sv-flow__item {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
    padding-bottom: 0;
  }

  .page-products .sv-flow__no {
    width: 36px;
    height: 36px;
    font-size: 13px;
  }

  .page-products .sv-flow__item:not(:last-child)::after {
    left: 17px;
    right: -18px;
    top: 36px;
    bottom: auto;
    width: auto;
    height: 1px;
    background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 13px);
  }

  .page-products .sv-flow__item h3 {
    font-size: 16px;
    margin-top: 2px;
  }

  .page-products .sv-flow__item p {
    font-size: 14px;
  }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .sv-mod::before,
  .page-products .sv-dl,
  .page-products .sv-mod__more > summary::after {
    transition: none;
  }
}
</main>