.page-products {
  --sv-rail: 216px;
  display: block;
  background:
    radial-gradient(120% 60% at 88% -8%, rgba(45, 226, 230, 0.09), transparent 58%),
    radial-gradient(80% 45% at 0% 12%, rgba(255, 106, 26, 0.05), transparent 62%),
    var(--ink);
  color: var(--fog);
  overflow-x: clip;
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-products .breadcrumbs {
  padding-top: clamp(14px, 2vw, 22px);
  margin-bottom: 0;
}

/* ---------- 首屏 ---------- */
.page-products .sv-hero {
  padding: clamp(18px, 2.5vw, 34px) 0 clamp(28px, 4vw, 56px);
}

.page-products .sv-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: end;
}

.page-products .sv-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0;
}

.page-products .sv-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: clamp(2.3rem, 7.4vw, 4.5rem);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 14px 0 0;
  color: var(--fog);
  text-wrap: balance;
}

.page-products .sv-hero h1 em {
  font-style: normal;
  color: var(--cyan);
}

.page-products .sv-hero__text {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--silver);
}

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

.page-products .sv-frame {
  border: 1px solid var(--line);
  border-radius: var(--radius-a) var(--radius-a) var(--radius-a) var(--radius-b);
  background: linear-gradient(160deg, var(--charcoal), var(--ink));
  padding: 14px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

.page-products .sv-frame__screen {
  position: relative;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 10px;
  background:
    repeating-linear-gradient(0deg, rgba(45, 226, 230, 0.06) 0 1px, transparent 1px 4px),
    linear-gradient(180deg, var(--charcoal), var(--ink));
  display: grid;
  gap: 10px;
  align-content: center;
  padding: 16px 14px;
  overflow: hidden;
}

.page-products .sv-frame__screen::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 -40%;
  width: 40%;
  background: linear-gradient(90deg, transparent, rgba(45, 226, 230, 0.14), transparent);
  animation: sv-scan 7s linear infinite;
}

@keyframes sv-scan {
  from { transform: translateX(0); }
  to { transform: translateX(360%); }
}

.page-products .sv-frame__track {
  display: block;
  height: 9px;
  border-radius: 5px;
  background: var(--steel);
  overflow: hidden;
}

.page-products .sv-frame__track > span {
  display: block;
  height: 100%;
  border-radius: 5px;
  background: var(--deep-cyan);
}

.page-products .sv-frame__track:nth-child(1) > span { width: 42%; }
.page-products .sv-frame__track:nth-child(2) > span { width: 68%; }
.page-products .sv-frame__track:nth-child(3) > span { width: 86%; background: var(--cyan); }
.page-products .sv-frame__track:nth-child(4) > span { width: 30%; }

.page-products .sv-frame__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.page-products .sv-frame__note {
  font-size: 12px;
  color: var(--silver);
  margin-left: auto;
}

/* ---------- 通用小部件 ---------- */
.page-products .sv-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--silver);
  background: rgba(26, 34, 40, 0.7);
  white-space: nowrap;
}

.page-products .sv-chip--cyan {
  color: var(--cyan);
  border-color: rgba(45, 226, 230, 0.45);
  background: var(--cyan-soft);
}

.page-products .sv-chip--orange {
  color: var(--orange);
  border-color: rgba(255, 106, 26, 0.45);
  background: var(--orange-soft);
}

/* ---------- 左栏 + 主内容 ---------- */
.page-products .sv-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
  padding-top: clamp(24px, 3vw, 44px);
}

.page-products .sv-rail {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  padding: 14px 0;
}

.page-products .sv-rail__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--silver);
  display: none;
}

.page-products .sv-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .sv-rail__list li {
  flex: 0 0 auto;
}

.page-products .sv-rail__list a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--silver);
  text-decoration: none;
  font-size: 13.5px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-products .sv-rail__list a .mono {
  font-size: 11px;
  color: var(--deep-cyan);
}

.page-products .sv-rail__list a:hover,
.page-products .sv-rail__list a:focus-visible {
  color: var(--fog);
  border-color: rgba(45, 226, 230, 0.5);
  background: var(--cyan-soft);
}

.page-products .sv-rail__list a:hover .mono,
.page-products .sv-rail__list a:focus-visible .mono {
  color: var(--cyan);
}

/* ---------- 章节 ---------- */
.page-products .sv-section {
  scroll-margin-top: 110px;
}

.page-products .sv-section + .sv-section {
  margin-top: clamp(44px, 6vw, 88px);
  padding-top: clamp(32px, 4.5vw, 60px);
  border-top: 1px solid var(--line-soft);
}

.page-products .sv-section__head {
  max-width: 60ch;
}

.page-products .sv-section__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: clamp(1.65rem, 4vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  color: var(--fog);
  max-width: 24ch;
  text-wrap: balance;
}

.page-products .sv-section__lead {
  margin: 16px 0 0;
  max-width: 48ch;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--silver);
}

.page-products .sv-figure {
  position: relative;
  margin: clamp(20px, 3vw, 30px) 0 0;
  border: 1px solid var(--line);
  border-radius: 20px 20px 20px 6px;
  background: var(--graphite);
  overflow: hidden;
}

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

.page-products .sv-figure figcaption {
  padding: 10px 16px 13px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--silver);
  border-top: 1px solid var(--line-soft);
  background: rgba(17, 22, 26, 0.85);
}

.page-products .sv-figure--side {
  margin-top: 0;
}

/* ---------- 功能卡片 ---------- */
.page-products .sv-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-products .sv-card {
  position: relative;
  padding: 20px 18px 22px 22px;
  border: 1px solid var(--line);
  border-radius: 16px 16px 16px 4px;
  background: linear-gradient(165deg, var(--graphite), var(--charcoal));
}

.page-products .sv-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: var(--cyan);
  opacity: 0.6;
}

.page-products .sv-card__idx {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-products .sv-card h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--fog);
}

.page-products .sv-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 两栏混排 ---------- */
.page-products .sv-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 26px);
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-products .sv-table-wrap {
  border: 1px solid var(--line);
  border-radius: 16px 16px 16px 4px;
  background: var(--charcoal);
  overflow-x: auto;
}

.page-products .sv-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.page-products .sv-table__caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--silver);
  font-family: var(--font-mono);
}

.page-products .sv-table th {
  text-align: left;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.page-products .sv-table td {
  padding: 13px 16px;
  vertical-align: top;
  line-height: 1.7;
  color: var(--fog);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .sv-table td:first-child {
  color: var(--cyan);
  white-space: nowrap;
}

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

/* ---------- 回放统计 ---------- */
.page-products .sv-stats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-products .sv-stat {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: 0 16px 16px 0;
  background: rgba(26, 34, 40, 0.75);
}

.page-products .sv-stat__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-products .sv-stat__num span {
  font-size: 0.9rem;
  margin-left: 6px;
  color: var(--silver);
  letter-spacing: 0;
}

.page-products .sv-stat__num--hot {
  color: var(--orange);
}

.page-products .sv-stat__desc {
  margin: 10px 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 回放时间轴 ---------- */
.page-products .sv-timeline {
  margin-top: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: 18px 18px 18px 5px;
  background: linear-gradient(170deg, var(--charcoal), var(--ink));
  padding: 18px 16px 8px;
}

.page-products .sv-timeline__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .sv-tl-line {
  stroke: var(--steel);
  stroke-width: 2;
}

.page-products .sv-tl-dot {
  fill: var(--charcoal);
  stroke: var(--steel);
  stroke-width: 2;
}

.page-products .sv-tl-dot--key {
  fill: var(--cyan);
  stroke: var(--cyan);
}

.page-products .sv-tl-dot--hot {
  fill: var(--orange);
  stroke: var(--orange);
}

.page-products .sv-tl-label {
  fill: var(--silver);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.page-products .sv-nodes {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .sv-nodes details {
  border: 1px solid var(--line);
  border-radius: 13px 13px 13px 4px;
  background: var(--graphite);
}

.page-products .sv-nodes details[open] {
  border-color: rgba(45, 226, 230, 0.4);
}

.page-products .sv-nodes summary {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px 15px;
  cursor: pointer;
  list-style: none;
  color: var(--fog);
  font-size: 0.94rem;
}

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

.page-products .sv-nodes summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
}

.page-products .sv-nodes details[open] summary::after {
  content: "−";
}

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

.page-products .sv-nodes summary .mono {
  font-size: 11.5px;
  color: var(--silver);
}

.page-products .sv-nodes__title {
  font-weight: 600;
}

.page-products .sv-nodes details p {
  margin: 0;
  padding: 0 15px 14px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-products .sv-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
}

/* ---------- 多端 ---------- */
.page-products .sv-duo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 28px);
  margin-top: clamp(20px, 3vw, 30px);
  align-items: start;
}

.page-products .sv-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .sv-check li {
  padding: 15px 18px;
  border-left: 2px solid var(--cyan);
  border-radius: 0 14px 14px 0;
  background: rgba(26, 34, 40, 0.72);
}

.page-products .sv-check h3 {
  margin: 0 0 6px;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--fog);
}

.page-products .sv-check p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 三步 ---------- */
.page-products .sv-steps {
  list-style: none;
  counter-reset: sv-step;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .sv-steps li {
  position: relative;
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-radius: 18px 18px 18px 5px;
  background: linear-gradient(170deg, var(--graphite), var(--charcoal));
}

.page-products .sv-steps__num {
  margin: 0 0 10px;
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  color: var(--deep-cyan);
  letter-spacing: 0.02em;
}

.page-products .sv-steps li:nth-child(2) .sv-steps__num {
  color: var(--cyan);
}

.page-products .sv-steps li:nth-child(3) .sv-steps__num {
  color: var(--orange);
}

.page-products .sv-steps h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--fog);
}

.page-products .sv-steps p {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.78;
  color: var(--silver);
}

.page-products .sv-helper {
  margin-top: clamp(18px, 2.6vw, 26px);
  padding: 16px 18px;
  border: 1px dashed var(--line);
  border-radius: 14px 14px 14px 4px;
  display: grid;
  gap: 10px;
}

.page-products .sv-helper p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--silver);
}

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

/* ---------- 收尾 ---------- */
.page-products .sv-cta {
  margin-top: clamp(44px, 6vw, 88px);
  padding: clamp(24px, 3.4vw, 40px) clamp(20px, 3vw, 36px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  border: 1px solid var(--line);
  border-radius: 24px 24px 24px 8px;
  background:
    radial-gradient(120% 130% at 100% 0%, rgba(45, 226, 230, 0.14), transparent 62%),
    linear-gradient(160deg, var(--charcoal), var(--ink));
}

.page-products .sv-cta h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-products .sv-cta__copy p {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--silver);
}

.page-products .sv-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .sv-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 860px) {
  .page-products .sv-hero__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.75fr);
  }

  .page-products .sv-duo {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }

  .page-products .sv-cta {
    grid-template-columns: minmax(0, 1.5fr) auto;
    align-items: center;
  }

  .page-products .sv-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 980px) {
  .page-products .sv-shell {
    grid-template-columns: var(--sv-rail) minmax(0, 1fr);
  }

  .page-products .sv-rail {
    position: sticky;
    top: 118px;
    border: none;
    border-left: 1px solid var(--line);
    border-radius: 0;
    padding: 4px 0 4px 16px;
  }

  .page-products .sv-rail__title {
    display: block;
  }

  .page-products .sv-rail__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-products .sv-rail__list a {
    border: none;
    border-radius: 6px;
    padding: 9px 10px;
    background: transparent;
    width: 100%;
    justify-content: flex-start;
  }

  .page-products .sv-rail__list a:hover,
  .page-products .sv-rail__list a:focus-visible {
    background: var(--cyan-soft);
  }
}

@media (min-width: 1100px) {
  .page-products .sv-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-products .sv-figure--side {
    align-self: stretch;
  }

  .page-products .sv-figure--side img {
    height: 100%;
    min-height: 220px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .sv-frame__screen::before {
    animation: none;
  }

  .page-products [data-reveal] {
    transition: none;
    transform: none;
    opacity: 1;
  }
}