.pd-page {
  --pd-blue: #0b3f7a;
  --pd-blue-2: #0a2f5b;
  --pd-cyan: #23a9e1;
  --pd-yellow: #f7b500;
  --pd-ink: #132238;
  --pd-muted: #5a6878;
  --pd-line: #dce5ef;
  background: #fff;
  color: var(--pd-ink);
}

.pd-page *, .pd-page *::before, .pd-page *::after { box-sizing: border-box; }
.pd-shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.pd-hero {
  position: relative;
  overflow: hidden;
  min-height: 680px;
  display: grid;
  align-items: center;
  background:
    radial-gradient(circle at 78% 30%, rgba(35,169,225,.24), transparent 28%),
    linear-gradient(120deg, #061d39 0%, #0b3f7a 55%, #0d578c 100%);
  color: #fff;
}
.pd-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .13;
  background-image: linear-gradient(rgba(255,255,255,.17) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.17) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, #000, transparent 90%);
}
.pd-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.03fr .97fr; gap: 48px; align-items: center; padding: 78px 0 72px; }
.pd-breadcrumb { margin-bottom: 26px; color: rgba(255,255,255,.7); font-size: 14px; }
.pd-breadcrumb a { color: #fff; }
.pd-kicker { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 18px; color: #9ee1ff; font-size: 13px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.pd-kicker::before { content: ""; width: 34px; height: 3px; border-radius: 3px; background: var(--pd-yellow); }
.pd-hero h1 { max-width: 760px; margin: 0 0 20px; color: #fff; font-size: clamp(42px, 5vw, 72px); line-height: 1.02; letter-spacing: -.035em; }
.pd-lead { max-width: 690px; margin: 0 0 28px; color: rgba(255,255,255,.82); font-size: clamp(18px, 2vw, 22px); line-height: 1.65; }
.pd-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 34px; }
.pd-btn { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 0 24px; border: 1px solid rgba(255,255,255,.38); border-radius: 6px; color: #fff; font-weight: 800; text-decoration: none; }
.pd-btn-primary { border-color: var(--pd-yellow); background: var(--pd-yellow); color: #15243a; }
.pd-btn:hover { transform: translateY(-1px); }
.pd-mini-specs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 650px; border-top: 1px solid rgba(255,255,255,.22); padding-top: 24px; }
.pd-mini-specs div { padding-right: 18px; }
.pd-mini-specs div + div { padding-left: 18px; border-left: 1px solid rgba(255,255,255,.22); }
.pd-mini-specs strong { display: block; color: #fff; font-size: 24px; line-height: 1.15; }
.pd-mini-specs span { color: rgba(255,255,255,.64); font-size: 13px; }
.pd-hero-visual { position: relative; }
.pd-hero-visual::before { content: ""; position: absolute; inset: 10% -5% -6% 8%; border-radius: 50%; background: rgba(38,174,232,.22); filter: blur(36px); }
.pd-hero-visual img { position: relative; z-index: 1; width: 100%; height: auto; display: block; filter: drop-shadow(0 30px 35px rgba(0,0,0,.35)); }
.pd-source-note { position: relative; z-index: 1; margin: 8px 0 0; text-align: right; color: rgba(255,255,255,.55); font-size: 12px; }

.pd-anchor-bar { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--pd-line); box-shadow: 0 8px 24px rgba(23,46,78,.06); backdrop-filter: blur(10px); }
.pd-anchor-bar .pd-shell { display: flex; gap: 30px; overflow-x: auto; }
.pd-anchor-bar a { flex: 0 0 auto; padding: 19px 0 16px; border-bottom: 3px solid transparent; color: #405068; font-size: 14px; font-weight: 800; text-decoration: none; }
.pd-anchor-bar a:hover { color: var(--pd-blue); border-color: var(--pd-yellow); }

.pd-section { padding: 92px 0; }
.pd-section-soft { background: #f4f7fb; }
.pd-section-dark { background: linear-gradient(135deg, #07264a, #0b4a82); color: #fff; }
.pd-heading { max-width: 760px; margin-bottom: 44px; }
.pd-heading.center { margin-inline: auto; text-align: center; }
.pd-heading .pd-kicker { color: var(--pd-blue); }
.pd-heading h2 { margin: 0 0 16px; color: var(--pd-ink); font-size: clamp(34px, 4vw, 52px); line-height: 1.08; letter-spacing: -.03em; }
.pd-heading p { margin: 0; color: var(--pd-muted); font-size: 18px; line-height: 1.7; }
.pd-section-dark .pd-heading h2, .pd-section-dark .pd-heading p { color: #fff; }
.pd-section-dark .pd-heading p { color: rgba(255,255,255,.72); }
.pd-section-dark .pd-heading .pd-kicker { color: #8fdfff; }

.pd-value-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; }
.pd-value { position: relative; min-height: 245px; overflow: hidden; padding: 28px; border: 1px solid var(--pd-line); border-radius: 12px; background: #fff; box-shadow: 0 12px 30px rgba(27,58,92,.07); }
.pd-value::after { content: attr(data-no); position: absolute; right: 18px; bottom: 0; color: #edf2f7; font-size: 92px; font-weight: 900; line-height: .8; }
.pd-value h3, .pd-value p { position: relative; z-index: 1; }
.pd-value h3 { margin: 22px 0 14px; color: var(--pd-blue); font-size: 22px; }
.pd-value p { margin: 0; color: var(--pd-muted); line-height: 1.65; }
.pd-icon { display: grid; width: 46px; height: 46px; place-items: center; border-radius: 50%; background: #eaf5fb; color: var(--pd-blue); font-size: 22px; font-weight: 900; }

.pd-spec-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 56px; align-items: start; }
.pd-profile-card { position: sticky; top: 90px; padding: 34px; border-radius: 16px; background: linear-gradient(145deg,#0c3d73,#08284c); color: #fff; box-shadow: 0 20px 50px rgba(10,48,88,.2); }
.pd-profile-card h3 { margin: 0 0 14px; color: #fff; font-size: 28px; }
.pd-profile-card p { color: rgba(255,255,255,.72); line-height: 1.65; }
.pd-profile-shapes { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 28px; }
.pd-shape { display: grid; min-height: 170px; place-items: center; border: 1px solid rgba(255,255,255,.18); border-radius: 10px; background: rgba(255,255,255,.06); }
.pd-shape svg { width: 92px; height: 92px; }
.pd-shape span { margin-top: -24px; color: #fff; font-weight: 900; }
.pd-spec-table { overflow: hidden; border: 1px solid var(--pd-line); border-radius: 14px; background: #fff; box-shadow: 0 14px 36px rgba(27,58,92,.07); }
.pd-spec-row { display: grid; grid-template-columns: 42% 58%; }
.pd-spec-row + .pd-spec-row { border-top: 1px solid var(--pd-line); }
.pd-spec-row dt, .pd-spec-row dd { margin: 0; padding: 20px 24px; }
.pd-spec-row dt { background: #f6f8fb; color: #526176; font-weight: 800; }
.pd-spec-row dd { color: var(--pd-ink); font-weight: 700; }
.pd-spec-note { margin-top: 18px; color: #6b7888; font-size: 14px; line-height: 1.65; }

.pd-engineering-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.pd-engineering-card { padding: 30px; border: 1px solid rgba(255,255,255,.16); border-radius: 12px; background: rgba(255,255,255,.07); }
.pd-engineering-card strong { display: block; margin-bottom: 10px; color: #fff; font-size: 22px; }
.pd-engineering-card p { margin: 0; color: rgba(255,255,255,.7); line-height: 1.65; }

.pd-scene { overflow: hidden; border-radius: 16px; background: #fff; box-shadow: 0 24px 60px rgba(24,55,90,.13); }
.pd-scene img { display: block; width: 100%; height: auto; }
.pd-scene-caption { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; padding: 22px 28px; }
.pd-scene-caption strong { display: block; margin-bottom: 4px; color: var(--pd-ink); font-size: 19px; }
.pd-scene-caption span { color: var(--pd-muted); }
.pd-badge { padding: 8px 12px; border-radius: 999px; background: #eaf4ff; color: var(--pd-blue); font-size: 12px; font-weight: 900; text-transform: uppercase; }

.pd-flow { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: 12px; counter-reset: flow; }
.pd-flow div { position: relative; min-height: 136px; padding: 22px 16px; border: 1px solid var(--pd-line); border-radius: 10px; background: #fff; }
.pd-flow div::before { counter-increment: flow; content: "0" counter(flow); display: block; margin-bottom: 24px; color: var(--pd-cyan); font-size: 14px; font-weight: 900; }
.pd-flow strong { color: var(--pd-ink); font-size: 16px; }
.pd-flow-dark div { border-color: rgba(255,255,255,.16); background: rgba(255,255,255,.08); }
.pd-flow-dark strong { color: #fff; }
.pd-plain-list { display:grid; gap:12px; margin:24px 0 0; padding:0; list-style:none; }
.pd-plain-list li { position:relative; padding-left:22px; color:rgba(255,255,255,.82); line-height:1.55; }
.pd-plain-list li::before { content:"✓"; position:absolute; left:0; color:var(--pd-yellow); font-weight:900; }
.pd-option-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.pd-option-grid article { padding:26px; border:1px solid var(--pd-line); border-radius:12px; background:#fff; box-shadow:0 12px 30px rgba(27,58,92,.06); }
.pd-option-grid h3 { display:block; margin:0 0 10px; color:var(--pd-blue); font-size:20px; }
.pd-option-grid p { margin:0; color:var(--pd-muted); line-height:1.65; }
.pd-related-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.pd-related-card { display:grid; min-height:190px; align-content:end; padding:28px; border:1px solid var(--pd-line); border-radius:14px; background:linear-gradient(145deg,#fff,#f2f7fb); text-decoration:none; box-shadow:0 14px 32px rgba(27,58,92,.07); }
.pd-related-card span { margin-bottom:auto; color:var(--pd-cyan); font-weight:900; }
.pd-related-card strong { margin:34px 0 12px; color:var(--pd-ink); font-size:22px; }
.pd-related-card small { color:var(--pd-blue); font-weight:800; }
.pd-faq { display:grid; max-width:900px; margin:auto; gap:12px; }
.pd-faq details { padding:22px 24px; border:1px solid var(--pd-line); border-radius:10px; background:#fff; }
.pd-faq summary { cursor:pointer; color:var(--pd-ink); font-weight:900; }
.pd-faq p { margin:14px 0 0; color:var(--pd-muted); line-height:1.65; }

.pd-quote { overflow: hidden; position: relative; padding: 64px; border-radius: 20px; background: linear-gradient(120deg,#082c55,#0c5590); color: #fff; }
.pd-quote::after { content: ""; position: absolute; width: 320px; height: 320px; right: -80px; top: -120px; border: 64px solid rgba(255,255,255,.07); border-radius: 50%; }
.pd-quote-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.2fr .8fr; gap: 50px; align-items: center; }
.pd-quote h2 { margin: 0 0 14px; color: #fff; font-size: clamp(34px, 4vw, 50px); }
.pd-quote p { margin: 0; color: rgba(255,255,255,.72); font-size: 18px; line-height: 1.65; }
.pd-quote-list { display: grid; gap: 11px; margin: 0; padding: 0; list-style: none; }
.pd-quote-list li { padding-left: 28px; color: rgba(255,255,255,.86); }
.pd-quote-list li::before { content: "✓"; margin-left: -28px; margin-right: 10px; color: var(--pd-yellow); font-weight: 900; }
.pd-quote .pd-actions { margin: 26px 0 0; }

@media (max-width: 980px) {
  .pd-hero { min-height: auto; }
  .pd-hero-grid, .pd-spec-layout, .pd-quote-grid { grid-template-columns: 1fr; }
  .pd-hero-grid { padding-top: 58px; }
  .pd-hero-visual { max-width: 680px; margin-inline: auto; }
  .pd-value-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .pd-option-grid, .pd-related-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .pd-profile-card { position: static; }
  .pd-flow { grid-template-columns: repeat(3, minmax(0,1fr)); }
}

@media (max-width: 620px) {
  .pd-shell { width: min(100% - 28px, 1180px); }
  .pd-hero-grid { gap: 32px; padding: 42px 0 48px; }
  .pd-hero h1 { font-size: 41px; }
  .pd-mini-specs { grid-template-columns: 1fr; gap: 14px; }
  .pd-mini-specs div + div { padding: 14px 0 0; border-top: 1px solid rgba(255,255,255,.18); border-left: 0; }
  .pd-section { padding: 66px 0; }
  .pd-heading { margin-bottom: 30px; }
  .pd-value-grid, .pd-engineering-grid, .pd-flow, .pd-option-grid, .pd-related-grid { grid-template-columns: 1fr; }
  .pd-value { min-height: 210px; }
  .pd-profile-card { padding: 24px; }
  .pd-spec-row { grid-template-columns: 1fr; }
  .pd-spec-row dt { padding-bottom: 8px; }
  .pd-spec-row dd { padding-top: 8px; }
  .pd-scene-caption { grid-template-columns: 1fr; }
  .pd-quote { padding: 36px 24px; }
}
