.pdu-intro{padding-block:36px 64px}.back-link{display:inline-block;font-size:.875rem;color:var(--muted);margin-bottom:32px}.back-link:hover{color:white}.pdu-intro-grid{display:grid;grid-template-columns:1.3fr .8fr;align-items:center;gap:60px}.pdu-intro h1{font-size:clamp(2rem,3.5vw,3rem);line-height:1.45;letter-spacing:-.025em;font-weight:600;margin:16px 0 24px}.pdu-intro p{color:var(--muted);max-width:52ch;margin-bottom:28px}.pdu-intro figure{margin:0;max-width:400px;justify-self:end}.pdu-intro figure img{width:100%;height:auto;display:block;border-radius:6px}.pdu-intro figcaption{font-size:.75rem;color:var(--muted);margin-top:8px}.pdu-section{padding-block:64px;border-top:1px solid var(--line)}.series-choice{display:grid;grid-template-columns:1fr 1fr;gap:24px}.series-choice>a{padding:28px;border:1px solid #758994;background:var(--panel);border-radius:4px;display:grid;gap:14px}.series-choice>a:hover{border-color:var(--blue)}.series-choice strong{font-size:1.4rem;font-weight:600}.series-choice span{color:var(--muted)}.series-choice b{font-size:.9rem;color:var(--blue);font-weight:500}.model-section{padding-top:56px;scroll-margin-top:90px}.model-section>h2{font-size:1.7rem;font-weight:600}.section-lead{color:var(--muted);margin:10px 0 24px}.model-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.model-card{background:var(--panel);border:1px solid var(--line);padding:26px;border-radius:4px}.model-type{color:var(--green)!important;font-size:.8rem!important;letter-spacing:.04em}.model-card h3{font-size:1.6rem;margin:9px 0 12px;line-height:1.4}.model-card h4{font-size:1.0625rem;font-weight:600;margin-bottom:8px}.model-card p{color:var(--muted);font-size:.9375rem}.model-card ul{padding-left:20px;color:#c5d1da;font-size:.9375rem;margin-top:18px}.model-card li+li{margin-top:6px}#metered .model-type{color:var(--blue)!important}#planned .model-type{color:var(--silver)!important}.detail-note{color:var(--muted);font-size:.875rem;margin-top:22px;line-height:1.8}.function-section{background:#0d1c27}.function-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px 44px}.function-grid article{padding-top:24px;border-top:1px solid var(--line)}.function-grid h3{font-size:1.25rem;font-weight:600;margin:12px 0 14px}.function-grid p{color:#becbd5;font-size:1rem}.function-grid .detail-note{font-size:.875rem;color:#9fB1bf;margin-top:14px}.selection-checklist{list-style:none;counter-reset:steps;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px}.selection-checklist li{counter-increment:steps;border-top:1px solid var(--line);padding-top:22px}.selection-checklist li:before{content:'0' counter(steps);font-size:.8rem;color:var(--blue);display:block;margin-bottom:16px}.selection-checklist strong{display:block;margin-bottom:12px;font-size:1.125rem}.selection-checklist span{color:var(--muted);font-size:.9375rem}.detail-cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px}@media(max-width:900px){.pdu-intro-grid{gap:28px}.pdu-intro h1{font-size:2.1rem}.selection-checklist{grid-template-columns:1fr 1fr}.function-grid{gap:28px}.pdu-page .nav-links{gap:16px}}@media(max-width:700px){.pdu-intro{padding-block:28px 40px}.pdu-intro-grid{grid-template-columns:1fr}.pdu-intro figure{justify-self:start;width:100%;max-width:400px}.pdu-intro h1{font-size:2rem}.pdu-section{padding-block:44px}.model-grid,.function-grid,.series-choice{grid-template-columns:1fr}.model-section{padding-top:36px}.model-card{padding:22px}.series-choice>a{padding:22px}.selection-checklist{gap:24px}.detail-cta .btn{padding-inline:18px}}@media(max-width:360px){.selection-checklist{grid-template-columns:1fr}}

/* Visual product explanation and responsive buying comparison. */
.pdu-photo-strip{margin:0 0 28px;background:#142430;border:1px solid var(--line);padding:24px;border-radius:4px}.pdu-photo-strip img{display:block;width:100%;height:auto}.pdu-photo-strip figcaption{font-size:.8rem;color:var(--muted);margin-top:12px}
.highlight-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.highlight-grid article{padding:22px;border:1px solid var(--line);border-radius:4px;background:var(--panel)}.highlight-grid img,.highlight-letter{width:100%;aspect-ratio:5/3;object-fit:contain;display:block;margin-bottom:22px;background:#0d141c}.highlight-letter{display:flex;align-items:center;justify-content:center;font-size:clamp(2.5rem,5vw,4.5rem);font-weight:700;color:var(--silver);letter-spacing:-.04em}.highlight-grid h3{font-size:1.2rem;font-weight:600;margin-bottom:12px}.highlight-grid p{font-size:1rem;color:var(--muted)}.highlight-grid small{display:block;font-size:.875rem;color:#a7bbc9;margin-top:14px}
.comparison-controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr)) auto;gap:20px;align-items:end;margin-bottom:20px}.comparison-controls[hidden]{display:none}.comparison-controls label{display:block;font-size:.875rem;margin-bottom:8px}.comparison-controls select{width:100%;font:inherit;font-size:1rem;background:#142430;color:white;border:1px solid #6e8492;border-radius:3px;padding:12px}.comparison-result{font-size:.9375rem;color:var(--muted);margin-bottom:12px}.table-hint{font-size:.8rem;color:var(--muted);margin-bottom:10px}.comparison-scroll{overflow-x:auto;border:1px solid #435867;border-radius:4px;scrollbar-color:#6e8799 #101f2b}.comparison-table{border-collapse:collapse;width:100%;min-width:950px;font-size:.9375rem}.comparison-table caption{text-align:left;padding:18px;background:var(--panel);font-size:1.125rem;font-weight:600}.comparison-table th,.comparison-table td{text-align:left;vertical-align:top;padding:16px;border-bottom:1px solid var(--line)}.comparison-table thead th{background:#1b3040;color:#d5e1e9;font-size:.875rem}.comparison-table tbody th{white-space:nowrap;background:#101f2b;font-weight:600}.comparison-table tbody th a{color:var(--blue)}.comparison-table tbody th a:hover{text-decoration:underline}.comparison-table tbody tr:nth-child(even) td{background:#0f1c27}.comparison-table td{color:#c1d0db}.comparison-table tbody tr:hover td{background:#1a2e3c}.availability{font-size:.8rem;white-space:nowrap;padding:3px 8px;background:#1c3340;border-radius:3px;color:#d1dfe8}.availability.custom{color:#a5cfff}.availability.planned{color:#eed3a6}.empty-result{border:1px solid var(--line);padding:24px;margin-top:16px;color:#c1d0db}.model-card h3{scroll-margin-top:110px}
@media(max-width:900px){.highlight-grid{grid-template-columns:1fr}.highlight-grid article{display:grid;grid-template-columns:230px 1fr;column-gap:24px}.highlight-grid img,.highlight-letter{grid-row:1/4;margin-bottom:0}.comparison-controls{grid-template-columns:1fr 1fr}}
@media(max-width:550px){.highlight-grid article{display:block}.highlight-grid img,.highlight-letter{margin-bottom:20px}.pdu-photo-strip{padding:12px}.comparison-controls{grid-template-columns:1fr}.comparison-controls .btn{width:100%}.comparison-table th,.comparison-table td{padding:13px}}

/* Visual rhythm for the detailed feature guide. */
.function-visual{margin:0 0 24px}.function-visual img{width:100%;height:auto;display:block;border:1px solid #294354;border-radius:6px}.function-visual figcaption{font-size:.75rem;color:#91a9ba;margin-top:8px}.function-grid article{border-top:0;padding-top:0}.function-grid{gap:44px 32px}.series-scene{display:grid;grid-template-columns:minmax(240px,.8fr) 1.2fr;align-items:center;gap:44px;margin:40px 0 0;background:#10222e;border:1px solid var(--line);border-radius:6px;overflow:hidden}.series-scene>img{width:100%;max-height:320px;object-fit:cover;display:block}.series-scene figcaption{padding:28px 40px 28px 0}.series-scene strong{display:block;font-size:clamp(1.4rem,2.4vw,2rem);line-height:1.5;margin:14px 0}.series-scene p{color:var(--muted)}.series-scene small{display:block;color:#91a9ba;font-size:.75rem;margin-top:18px}@media(max-width:700px){.series-scene{grid-template-columns:1fr;gap:0}.series-scene>img{max-height:270px;object-position:center 45%}.series-scene figcaption{padding:24px}.function-grid{gap:36px}.function-visual{margin-bottom:18px}}

.function-visual img{aspect-ratio:3/2;object-fit:cover}.function-visual figcaption{font-size:.7rem;color:#91a9ba}