/* ===== 业务方案中心 /download/ ===== */
.page-products {
  --pd-gap: clamp(56px, 8vw, 100px);
  --pd-line: rgba(200, 145, 42, 0.30);
  --pd-line-soft: rgba(244, 238, 226, 0.12);
  --pd-fg: var(--ivory);
  --pd-fg-dim: rgba(244, 238, 226, 0.74);
  background: var(--ink);
  color: var(--champagne);
}

.page-products img {
  max-width: 100%;
  height: auto;
}

.page-products .pd-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 20px;
}

.page-products .pd-eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--gold);
  flex: 0 0 auto;
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  position: relative;
  padding: clamp(56px, 8vw, 124px) 0 clamp(44px, 6vw, 80px);
  background:
    radial-gradient(110% 72% at 86% 0%, rgba(200, 145, 42, 0.18), rgba(200, 145, 42, 0) 62%),
    linear-gradient(180deg, #0B0B0D 0%, #101216 100%);
  border-bottom: 1px solid var(--pd-line);
}

.page-products .pd-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold) 32%, transparent 82%);
}

.page-products .pd-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-products .pd-rail {
  border: 1px solid var(--pd-line-soft);
  border-radius: 2px;
  padding: 20px 20px 6px;
  background: rgba(21, 24, 29, 0.7);
}

.page-products .pd-rail__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 4px;
}

.page-products .pd-rail__value {
  font-family: var(--font-geo);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold-bright);
  margin: 0 0 18px;
}

.page-products .pd-rail__value:last-child {
  margin-bottom: 0;
}

.page-products .pd-hero__main {
  min-width: 0;
}

.page-products .pd-hero .breadcrumb {
  margin-bottom: 26px;
}

.page-products .pd-hero h1 {
  font-size: clamp(36px, 7vw, 92px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 900;
  margin: 0 0 24px;
  color: var(--ivory);
  max-width: 14em;
}

.page-products .pd-hero__lede {
  font-size: clamp(16px, 1.1vw, 18px);
  line-height: 1.85;
  color: var(--pd-fg-dim);
  max-width: 62ch;
  margin: 0 0 34px;
}

.page-products .pd-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- 通用区块 ---------- */
.page-products .pd-section {
  padding: clamp(60px, 8vw, 116px) 0;
  position: relative;
}

.page-products .pd-head {
  max-width: 880px;
  margin-bottom: clamp(34px, 5vw, 58px);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--pd-line);
}

.page-products .pd-head h2,
.page-products .pd-line__body h2,
.page-products .pd-warranty__body h2,
.page-products .pd-kit__grid h2,
.page-products .pd-cta h2 {
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.028em;
  font-weight: 800;
  margin: 0 0 18px;
}

.page-products .pd-head h2 {
  color: var(--ivory);
}

.page-products .pd-head__lede {
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--pd-fg-dim);
  margin: 0;
  max-width: 62ch;
}

/* ---------- 双轨 ---------- */
.page-products .pd-tracks {
  background: var(--ink-2);
}

.page-products .pd-tracks__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-products .pd-track {
  padding: 26px 0 34px;
  border-top: 3px solid var(--track, var(--gold));
  min-width: 0;
  transition: opacity 240ms ease-out;
}

.page-products .pd-track--gd {
  --track: var(--blue);
}

.page-products .pd-track--sh {
  --track: var(--coral);
}

.page-products .pd-track + .pd-track {
  margin-top: 36px;
}

.page-products .pd-shot {
  margin: 0 0 26px;
  position: relative;
  border: 1px solid var(--pd-line-soft);
  border-radius: 2px;
  overflow: hidden;
  background: var(--ink);
}

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

.page-products .pd-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 11, 13, 0) 58%, rgba(11, 11, 13, 0.5));
  pointer-events: none;
}

.page-products .pd-track__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--track);
  margin: 0 0 12px;
}

.page-products .pd-track__title {
  font-size: clamp(21px, 2.3vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--ivory);
  margin: 0 0 14px;
}

.page-products .pd-track__text {
  font-size: 16px;
  line-height: 1.85;
  color: var(--pd-fg-dim);
  margin: 0 0 26px;
}

.page-products .pd-track__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--pd-line-soft);
}

.page-products .pd-track__list li {
  display: flex;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--pd-line-soft);
  font-size: 15px;
  line-height: 1.6;
  color: rgba(244, 238, 226, 0.86);
}

.page-products .pd-track__list span {
  flex: 0 0 54px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--track);
  padding-top: 4px;
}

/* ---------- 单线区块 ---------- */
.page-products .pd-line {
  --fg: var(--ivory);
  --fg-dim: rgba(244, 238, 226, 0.74);
  --rule: var(--pd-line);
  --step-rule: var(--pd-line-soft);
}

.page-products .pd-line--gd {
  --fg: var(--ink);
  --fg-dim: rgba(21, 24, 29, 0.76);
  --rule: rgba(21, 24, 29, 0.16);
  --step-rule: rgba(21, 24, 29, 0.14);
  --accent: var(--blue);
  background: var(--champagne);
  color: var(--ink-2);
}

.page-products .pd-line--sh {
  --accent: var(--coral);
  background: var(--ink);
  border-top: 1px solid var(--pd-line);
  border-bottom: 1px solid var(--pd-line);
}

.page-products .pd-line--gd .pd-eyebrow {
  color: var(--gold-ink);
}

.page-products .pd-line--gd .pd-eyebrow::before {
  background: var(--gold-ink);
}

.page-products .pd-line__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 60px);
  align-items: start;
}

.page-products .pd-line__body {
  min-width: 0;
}

.page-products .pd-line__body h2 {
  color: var(--fg);
}

.page-products .pd-line__lede {
  font-size: 16px;
  line-height: 1.85;
  color: var(--fg-dim);
  max-width: 58ch;
  margin: 0 0 36px;
}

.page-products .pd-step {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pd-step li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--step-rule);
}

.page-products .pd-step li:last-child {
  border-bottom: 1px solid var(--step-rule);
}

.page-products .pd-step__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--accent);
  padding-top: 5px;
}

.page-products .pd-step__c h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--fg);
}

.page-products .pd-step__c p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-products .pd-line__media {
  margin: 0;
  position: relative;
  border: 1px solid var(--pd-line);
  border-radius: 2px;
  overflow: hidden;
  background: var(--ink);
}

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

.page-products .pd-line__media figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(244, 238, 226, 0.8);
  background: linear-gradient(180deg, rgba(11, 11, 13, 0), rgba(11, 11, 13, 0.84));
}

/* ---------- 价格刻度带 ---------- */
.page-products .pd-tiers {
  background: var(--ink-2);
}

.page-products .pd-banner {
  margin: 0;
  border: 1px solid var(--pd-line-soft);
  border-radius: 2px;
  overflow: hidden;
}

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

.page-products .pd-scale__wrap {
  margin-top: clamp(30px, 4vw, 48px);
}

.page-products .pd-scale__ruler {
  height: 20px;
  background-image: repeating-linear-gradient(to right, var(--pd-line) 0 1px, transparent 1px 28px);
  border-bottom: 1px solid var(--pd-line-soft);
}

.page-products .pd-scale {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--pd-line);
  border-bottom: 1px solid var(--pd-line);
  background: var(--ink);
  scrollbar-width: thin;
  scrollbar-color: var(--gold) transparent;
}

.page-products .pd-scale::-webkit-scrollbar {
  height: 4px;
}

.page-products .pd-scale::-webkit-scrollbar-thumb {
  background: var(--gold);
}

.page-products .pd-tier {
  position: relative;
  flex: 0 0 min(80vw, 340px);
  scroll-snap-align: start;
  padding: 34px 24px 38px;
  border-right: 1px solid var(--pd-line-soft);
  transition: background 200ms ease-out, transform 240ms ease-out;
  min-width: 0;
}

.page-products .pd-tier::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--tier, var(--tier-1));
}

.page-products .pd-tier--entry {
  --tier: var(--tier-1);
}

.page-products .pd-tier--standard {
  --tier: var(--tier-2);
}

.page-products .pd-tier--advanced {
  --tier: var(--tier-3);
}

.page-products .pd-tier--flagship {
  --tier: var(--tier-4);
}

.page-products .pd-tier__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--muted);
  margin: 0 0 18px;
}

.page-products .pd-tier__name {
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--ivory);
  margin: 0 0 12px;
}

.page-products .pd-tier__fit {
  font-size: 15px;
  line-height: 1.8;
  color: var(--pd-fg-dim);
  margin: 0 0 22px;
  min-height: 4.6em;
}

.page-products .pd-tier__meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--pd-line-soft);
}

.page-products .pd-tier__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  padding-top: 3px;
}

.page-products .pd-tier__meta dd {
  margin: 0;
  font-size: 14px;
  color: var(--gold-bright);
  font-weight: 600;
}

/* ---------- 质保与校验 ---------- */
.page-products .pd-warranty {
  background: var(--champagne);
  color: var(--ink-2);
}

.page-products .pd-warranty .pd-eyebrow {
  color: var(--gold-ink);
}

.page-products .pd-warranty .pd-eyebrow::before {
  background: var(--gold-ink);
}

.page-products .pd-warranty__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 60px);
  align-items: start;
}

.page-products .pd-warranty__body h2 {
  color: var(--ink);
}

.page-products .pd-warranty__lede {
  font-size: 16px;
  line-height: 1.85;
  color: rgba(21, 24, 29, 0.78);
  max-width: 54ch;
  margin: 0 0 32px;
}

.page-products .pd-check {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(21, 24, 29, 0.16);
}

.page-products .pd-check li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(21, 24, 29, 0.16);
}

.page-products .pd-check__no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-ink);
  padding-top: 4px;
}

.page-products .pd-check li h3 {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .pd-check li p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(21, 24, 29, 0.7);
}

.page-products .pd-note {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--gold-ink);
  padding-left: 14px;
  border-left: 2px solid var(--gold);
}

.page-products .pd-note a {
  color: var(--gold-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 选档路径 ---------- */
.page-products .pd-choose {
  background: var(--ink);
}

.page-products .pd-choose__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pd-choose__list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 24px 0;
  border-top: 1px solid var(--pd-line-soft);
}

.page-products .pd-choose__list li:last-child {
  border-bottom: 1px solid var(--pd-line-soft);
}

.page-products .pd-choose__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-products .pd-choose__list h3 {
  font-size: clamp(19px, 2vw, 23px);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--ivory);
  margin: 0;
}

.page-products .pd-choose__list p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--pd-fg-dim);
}

/* ---------- 对接材料 ---------- */
.page-products .pd-kit {
  background: var(--ivory);
  color: var(--ink-2);
}

.page-products .pd-kit .pd-eyebrow {
  color: var(--gold-ink);
}

.page-products .pd-kit .pd-eyebrow::before {
  background: var(--gold-ink);
}

.page-products .pd-kit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-products .pd-kit__grid h2 {
  color: var(--ink);
}

.page-products .pd-kit__lede {
  font-size: 16px;
  line-height: 1.85;
  color: rgba(21, 24, 29, 0.76);
  margin: 0;
  max-width: 48ch;
}

.page-products .pd-kit__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .pd-kit__table caption {
  caption-side: top;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold-ink);
  padding-bottom: 14px;
}

.page-products .pd-kit__table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  font-weight: 500;
  color: var(--graphite);
  padding: 0 10px 10px 0;
  border-bottom: 1px solid rgba(21, 24, 29, 0.2);
}

.page-products .pd-kit__table td {
  padding: 15px 10px 15px 0;
  border-bottom: 1px solid rgba(21, 24, 29, 0.1);
  line-height: 1.7;
  vertical-align: top;
  color: rgba(21, 24, 29, 0.82);
}

.page-products .pd-kit__table td:first-child {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold-ink);
  width: 46px;
}

.page-products .pd-kit__table td:nth-child(2) {
  font-weight: 700;
  color: var(--ink);
  width: 34%;
}

.page-products .pd-links {
  margin: 26px 0 0;
  font-size: 14px;
  color: var(--graphite);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-products .pd-links a {
  color: var(--gold-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 结尾 ---------- */
.page-products .pd-cta {
  background: linear-gradient(180deg, var(--ink-2), var(--ink));
  border-top: 1px solid var(--pd-line);
  padding: clamp(56px, 7vw, 92px) 0;
}

.page-products .pd-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}

.page-products .pd-cta h2 {
  color: var(--ivory);
  margin-bottom: 14px;
}

.page-products .pd-cta p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--pd-fg-dim);
  max-width: 56ch;
}

.page-products .pd-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 700px) {
  .page-products .pd-kit__table td:nth-child(3) {
    padding-right: 0;
  }
}

@media (min-width: 900px) {
  .page-products .pd-hero__grid {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 78px);
  }

  .page-products .pd-rail {
    border: 0;
    border-left: 1px solid var(--pd-line);
    background: none;
    padding: 6px 0 6px 22px;
    position: sticky;
    top: 112px;
  }

  .page-products .pd-line__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: clamp(40px, 6vw, 84px);
  }

  .page-products .pd-line--sh .pd-line__grid {
    grid-template-columns: minmax(0, 1fr);
    max-width: 900px;
  }

  .page-products .pd-warranty__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: clamp(40px, 6vw, 84px);
  }

  .page-products .pd-kit__grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(40px, 6vw, 84px);
  }

  .page-products .pd-cta__inner {
    grid-template-columns: minmax(0, 1.3fr) auto;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-products .pd-choose__list li {
    grid-template-columns: 96px minmax(0, 1fr) minmax(0, 1.4fr);
    gap: clamp(20px, 3vw, 48px);
    align-items: baseline;
    padding: 28px 0;
  }

  .page-products .pd-choose__list h3 {
    margin: 0;
  }
}

@media (min-width: 920px) {
  .page-products .pd-tracks__grid {
    grid-template-columns: 1fr 1fr;
    border-top: 1px solid var(--pd-line);
  }

  .page-products .pd-track {
    padding: 38px 40px 48px 0;
    border-top: 3px solid var(--track, var(--gold));
  }

  .page-products .pd-track--sh {
    padding-left: 40px;
    padding-right: 0;
    border-left: 1px solid var(--pd-line);
  }

  .page-products .pd-track + .pd-track {
    margin-top: 0;
  }
}

@media (hover: hover) and (min-width: 920px) {
  .page-products .pd-tracks__grid:hover .pd-track {
    opacity: 0.55;
  }

  .page-products .pd-tracks__grid:hover .pd-track:hover,
  .page-products .pd-tracks__grid:focus-within .pd-track:focus-within {
    opacity: 1;
  }

  .page-products .pd-tier:hover {
    background: rgba(200, 145, 42, 0.06);
    transform: translateY(-4px);
  }
}

@media (min-width: 1100px) {
  .page-products .pd-tier {
    flex: 1 1 0;
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-track,
  .page-products .pd-tier {
    transition: none;
  }

  .page-products .pd-tier:hover {
    transform: none;
  }
}