.plvt-root{
  --plvt-navy:#0a2942;
  --plvt-blue:#0f6f91;
  --plvt-teal:#14a5a6;
  --plvt-mint:#dff5f1;
  --plvt-pale:#f3f8f9;
  --plvt-ink:#17323f;
  --plvt-muted:#5c747e;
  --plvt-line:#d7e5e8;
  --plvt-white:#fff;
  --plvt-warning:#fff4d8;
  --plvt-danger:#fff0ef;
  --plvt-shadow:0 22px 55px rgba(8,43,63,.12);
  color:var(--plvt-ink);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.6;
  margin:28px auto;
  max-width:1220px;
}
.plvt-root *{box-sizing:border-box}
.plvt-root button,.plvt-root input{font:inherit}
.plvt-shell{background:var(--plvt-white);border:1px solid var(--plvt-line);border-radius:28px;box-shadow:var(--plvt-shadow);overflow:hidden}
.plvt-hero{background:radial-gradient(circle at 86% 14%,rgba(68,211,202,.23),transparent 24%),linear-gradient(135deg,var(--plvt-navy),#0a526d);color:#fff;padding:38px 42px 32px;position:relative}
.plvt-brand-row{display:flex;gap:18px;align-items:center}
.plvt-brand-mark{width:62px;height:62px;border:1px solid rgba(255,255,255,.25);border-radius:18px;display:grid;place-items:center;background:rgba(255,255,255,.1);color:#71e0d6;flex:0 0 auto}
.plvt-brand-mark svg{width:44px;height:44px}
.plvt-eyebrow,.plvt-kicker{font-weight:800;letter-spacing:.12em;text-transform:uppercase;font-size:.74rem}
.plvt-hero h2{font-size:clamp(1.7rem,4vw,3rem);line-height:1.12;margin:4px 0 0;color:#fff}
.plvt-intro{max-width:780px;font-size:1.05rem;color:#dcebf0;margin:22px 0 18px}
.plvt-meta{display:flex;flex-wrap:wrap;gap:10px}
.plvt-meta span{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:6px 12px;font-size:.82rem}
.plvt-progress-wrap{padding:18px 34px;border-bottom:1px solid var(--plvt-line);background:#fff}
.plvt-progress-label{display:flex;justify-content:space-between;align-items:center;font-size:.83rem;color:var(--plvt-muted);margin-bottom:7px}
.plvt-progress-track{height:7px;border-radius:99px;background:#e9f0f2;overflow:hidden}
.plvt-progress-track span{display:block;height:100%;width:10%;border-radius:inherit;background:linear-gradient(90deg,var(--plvt-teal),var(--plvt-blue));transition:width .35s ease}
.plvt-layout{display:grid;grid-template-columns:245px minmax(0,1fr);min-height:720px}
.plvt-station-nav{background:var(--plvt-pale);border-right:1px solid var(--plvt-line);padding:22px 14px;display:flex;flex-direction:column;gap:6px}
.plvt-station-nav button{appearance:none;border:0;background:transparent;color:#49646d;border-radius:13px;padding:10px 11px;text-align:left;display:flex;gap:10px;align-items:center;cursor:pointer;font-weight:700;font-size:.88rem;transition:.2s}
.plvt-station-nav button span{width:30px;height:30px;border-radius:10px;border:1px solid #c5d9dd;display:grid;place-items:center;font-size:.72rem;background:#fff;color:#69848d;flex:0 0 auto}
.plvt-station-nav button:hover,.plvt-station-nav button:focus-visible{background:#e3f1f2;color:var(--plvt-navy);outline:none}
.plvt-station-nav button.is-active{background:var(--plvt-navy);color:#fff;box-shadow:0 8px 20px rgba(10,41,66,.17)}
.plvt-station-nav button.is-active span{background:var(--plvt-teal);border-color:var(--plvt-teal);color:#fff}
.plvt-stage{padding:34px 38px 26px;min-width:0}
.plvt-step{animation:plvtFade .32s ease}
@keyframes plvtFade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.plvt-step h3{font-size:clamp(1.5rem,3vw,2.3rem);line-height:1.18;color:var(--plvt-navy);margin:4px 0 16px}
.plvt-step h4{color:var(--plvt-navy);margin:0 0 8px;font-size:1.08rem}
.plvt-step p{margin:0 0 14px}
.plvt-kicker{color:var(--plvt-teal)}
.plvt-step-grid,.plvt-ultrasound-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}
.plvt-callout,.plvt-alert{border:1px solid var(--plvt-line);background:var(--plvt-pale);padding:15px 17px;border-radius:14px;margin:18px 0}
.plvt-callout strong,.plvt-alert strong{display:block;color:var(--plvt-navy);margin-bottom:2px}
.plvt-callout p,.plvt-alert p{margin:0}
.plvt-callout-blue{background:#e9f5fb;border-color:#cce4ef}
.plvt-callout-green{background:#e8f8f3;border-color:#c7ebdf}
.plvt-alert{background:var(--plvt-warning);border-color:#f0d98f}
.plvt-checklist{list-style:none;padding:0;margin:16px 0;display:grid;gap:9px}
.plvt-checklist li{position:relative;padding-left:28px}
.plvt-checklist li:before{content:"✓";position:absolute;left:0;top:1px;width:20px;height:20px;display:grid;place-items:center;border-radius:50%;background:var(--plvt-mint);color:#067d78;font-size:.72rem;font-weight:900}
.plvt-scene{height:365px;border-radius:22px;background:radial-gradient(circle at 50% 25%,#305c72,#071d2c 70%);position:relative;overflow:hidden;box-shadow:inset 0 0 0 1px rgba(255,255,255,.12)}
.plvt-welcome-scene:before{content:"";position:absolute;inset:auto 0 0;height:95px;background:linear-gradient(transparent,rgba(0,0,0,.32))}
.plvt-monitor{position:absolute;right:45px;top:42px;width:145px;height:215px}
.plvt-monitor-screen{height:120px;background:#020708;border:8px solid #b9ced2;border-radius:10px;position:relative;overflow:hidden}
.plvt-monitor-screen:before{content:"";position:absolute;left:18px;right:18px;top:38px;height:3px;background:#d9f6ef;box-shadow:0 23px 0 rgba(217,246,239,.55),0 46px 0 rgba(217,246,239,.3)}
.plvt-monitor-screen span{position:absolute;left:28px;top:41px;height:76px;width:3px;background:linear-gradient(#fff,transparent);transform:rotate(8deg);filter:drop-shadow(20px 0 0 #fff) drop-shadow(40px 0 0 #fff);animation:plvtPulse 1.8s infinite alternate}
@keyframes plvtPulse{to{opacity:.45;transform:translateX(3px) rotate(-6deg)}}
.plvt-monitor-base{width:90px;height:88px;background:#a9c0c4;margin:0 auto;border-radius:0 0 16px 16px;position:relative}
.plvt-monitor-base:after{content:"";position:absolute;bottom:-14px;left:-23px;width:136px;height:18px;background:#8ca8ad;border-radius:10px}
.plvt-bed{position:absolute;left:34px;bottom:62px;width:205px;height:72px;background:#b8d3d7;border-radius:20px 30px 9px 9px;transform:skewX(-8deg)}
.plvt-bed:before{content:"";position:absolute;width:42px;height:42px;border-radius:50%;background:#d7a983;top:-24px;left:28px}
.plvt-bed span{position:absolute;left:52px;top:-2px;width:122px;height:55px;border-radius:45px 20px 8px 8px;background:#52b0b4}
.plvt-probe-cable{position:absolute;left:202px;top:158px;width:90px;height:90px;border:4px solid transparent;border-top-color:#d0e6e5;border-right-color:#d0e6e5;border-radius:50%;transform:rotate(-25deg)}
.plvt-scene-label{position:absolute;left:22px;right:22px;bottom:18px;color:#e6f4f5;background:rgba(4,24,37,.72);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:10px 12px;text-align:center;font-size:.82rem}
.plvt-card-grid{display:grid;gap:14px;margin:18px 0 22px}.plvt-three{grid-template-columns:repeat(3,1fr)}
.plvt-choice-card{border:1px solid var(--plvt-line);background:#fff;border-radius:16px;padding:18px;text-align:left;cursor:pointer;transition:.2s;color:var(--plvt-ink)}
.plvt-choice-card:hover,.plvt-choice-card:focus-visible{transform:translateY(-2px);box-shadow:0 10px 24px rgba(8,43,63,.1);outline:none}
.plvt-choice-card.is-selected{border-color:var(--plvt-teal);box-shadow:0 0 0 3px rgba(20,165,166,.12);background:#f6fffd}
.plvt-choice-card strong,.plvt-choice-card small{display:block}.plvt-choice-card small{color:var(--plvt-muted);margin-top:6px}
.plvt-probe-icon{display:block;width:42px;height:54px;margin-bottom:12px;position:relative}
.plvt-probe-icon:before{content:"";position:absolute;left:12px;top:0;width:18px;height:36px;background:#375c68;border-radius:7px 7px 4px 4px}
.plvt-probe-icon:after{content:"";position:absolute;left:6px;top:31px;width:30px;height:16px;background:var(--plvt-teal)}
.plvt-probe-icon.plvt-linear:after{border-radius:3px}.plvt-probe-icon.plvt-curved:after{border-radius:4px 4px 18px 18px}.plvt-probe-icon.plvt-phased:after{clip-path:polygon(50% 100%,0 0,100% 0)}
.plvt-setting-panel{display:grid;grid-template-columns:1fr 1fr;gap:22px;padding:20px;border:1px solid var(--plvt-line);border-radius:17px;background:var(--plvt-pale)}
.plvt-knobs{display:grid;gap:13px}.plvt-knobs label{display:grid;grid-template-columns:64px 1fr 75px;align-items:center;gap:8px;font-size:.82rem;font-weight:700}.plvt-knobs output{color:var(--plvt-blue);text-align:right}
.plvt-root input[type="range"]{accent-color:var(--plvt-teal);width:100%}
.plvt-zone-layout{display:grid;grid-template-columns:minmax(300px,.9fr) 1.1fr;gap:26px;align-items:center;margin-top:16px}
.plvt-body-map{border:1px solid var(--plvt-line);background:linear-gradient(#f9fcfc,#eef6f7);border-radius:22px;padding:12px}.plvt-body-map svg{width:100%;height:470px;display:block}.plvt-body-map text{font:700 13px sans-serif;fill:#6c858c}
.plvt-zone-hotspots circle{fill:var(--plvt-teal);stroke:#fff;stroke-width:5;cursor:pointer;opacity:.8;filter:drop-shadow(0 4px 5px rgba(10,41,66,.18));transition:.2s}.plvt-zone-hotspots circle:hover,.plvt-zone-hotspots circle:focus,.plvt-zone-hotspots circle.is-active{fill:var(--plvt-navy);opacity:1;outline:none;transform:scale(1.12);transform-origin:center;transform-box:fill-box}
.plvt-zone-code{display:inline-block;color:#fff;background:var(--plvt-blue);border-radius:999px;padding:5px 10px;font-weight:900;font-size:.75rem;letter-spacing:.08em;margin-bottom:13px}.plvt-zone-info{border:1px solid var(--plvt-line);border-radius:20px;padding:24px;background:#fff}.plvt-mini-steps{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:20px}.plvt-mini-steps span{padding:10px;background:var(--plvt-pale);border-radius:10px;font-size:.82rem;font-weight:700}
.plvt-us-screen{height:360px;border:9px solid #d8e4e6;border-radius:17px;background:linear-gradient(180deg,#111,#020202);position:relative;overflow:hidden;box-shadow:inset 0 0 50px #000,0 12px 30px rgba(10,41,66,.12)}
.plvt-us-screen:after{content:"";position:absolute;inset:0;background:repeating-radial-gradient(circle at 50% 5%,transparent 0 6px,rgba(255,255,255,.035) 7px 8px);pointer-events:none}
.plvt-rib{position:absolute;top:70px;width:58px;height:35px;border-radius:50% 50% 20% 20%;background:#e7e7e7;box-shadow:0 18px 24px 8px #000;z-index:2}.rib-one{left:45px}.rib-two{right:45px}
.plvt-pleura{position:absolute;left:65px;right:65px;top:112px;height:5px;background:#fff;box-shadow:0 0 8px #fff;z-index:3}.plvt-pleura.sliding:before{content:"";position:absolute;inset:-3px 0;background:linear-gradient(90deg,transparent,#fff,transparent);animation:plvtSlide 1.1s linear infinite}@keyframes plvtSlide{from{transform:translateX(-45%)}to{transform:translateX(45%)}}
.plvt-us-screen.is-paused .plvt-pleura.sliding:before{animation-play-state:paused}
.plvt-a-line{position:absolute;left:74px;right:74px;height:2px;background:rgba(255,255,255,.78);box-shadow:0 0 7px rgba(255,255,255,.5)}.a1{top:180px}.a2{top:248px;opacity:.6}.a3{top:316px;opacity:.35}
.plvt-screen-tag{position:absolute;right:9px;top:8px;color:#8fa2a7;font-size:.64rem;letter-spacing:.14em;z-index:8}
.plvt-feature{padding:13px 0;border-bottom:1px solid var(--plvt-line)}.plvt-feature b,.plvt-feature span{display:block}.plvt-feature b{color:var(--plvt-navy)}.plvt-feature span{color:var(--plvt-muted);font-size:.9rem}
.plvt-toggle,.plvt-primary,.plvt-secondary{border:0;border-radius:12px;padding:11px 17px;font-weight:800;cursor:pointer;text-decoration:none;display:inline-flex;justify-content:center;align-items:center;transition:.2s}.plvt-primary{background:var(--plvt-teal);color:#fff}.plvt-primary:hover,.plvt-primary:focus-visible{background:#0b8b8d;transform:translateY(-1px);outline:none}.plvt-secondary,.plvt-toggle{background:#e9f1f3;color:var(--plvt-navy)}.plvt-secondary:hover,.plvt-toggle:hover{background:#dbe9ec}.plvt-secondary:disabled{opacity:.45;cursor:not-allowed}
.plvt-bline{position:absolute;top:113px;width:5px;height:245px;background:linear-gradient(#fff,rgba(255,255,255,.8),rgba(255,255,255,.16));box-shadow:0 0 12px 2px #fff;z-index:2;transform-origin:top;animation:plvtBMove 1.1s ease-in-out infinite alternate}.b1{left:22%}.b2{left:39%;animation-delay:-.25s}.b3{left:61%;animation-delay:-.55s}.b4{left:79%;animation-delay:-.8s}@keyframes plvtBMove{to{transform:rotate(2deg) translateX(4px);opacity:.82}}
.plvt-counter{display:flex;align-items:center;gap:10px;margin:18px 0}.plvt-counter button{width:34px;height:34px;border-radius:50%;border:1px solid var(--plvt-line);background:#fff;color:var(--plvt-navy);font-size:1.25rem;cursor:pointer}.plvt-counter strong{font-size:1.7rem;color:var(--plvt-teal)}.plvt-counter span{color:var(--plvt-muted);font-size:.85rem}
.plvt-logic-path{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0}.plvt-logic-path div{border:1px solid var(--plvt-line);padding:18px;border-radius:16px;background:#fff}.plvt-logic-path span{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--plvt-navy);color:#fff;font-weight:900;margin-bottom:10px}.plvt-logic-path strong,.plvt-logic-path small{display:block}.plvt-logic-path small{margin-top:6px;color:var(--plvt-muted)}
.plvt-compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}.plvt-compare>div{padding:17px;border:1px solid var(--plvt-line);border-radius:17px}.plvt-compare p{font-size:.85rem;color:var(--plvt-muted);margin:8px 0 0}
.plvt-mmode{height:160px;background:#060606;border:6px solid #d8e4e6;border-radius:10px;position:relative;overflow:hidden}.plvt-mmode:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 8px,rgba(255,255,255,.35) 9px 10px)}.plvt-mmode:after{content:"";position:absolute;left:0;right:0;top:52px;height:3px;background:#fff}.plvt-mmode.seashore span{position:absolute;left:0;right:0;top:55px;bottom:0;background-image:radial-gradient(#ddd 1px,transparent 1px);background-size:5px 5px;opacity:.65}.plvt-mmode.barcode span{position:absolute;inset:55px 0 0;background:repeating-linear-gradient(0deg,transparent 0 8px,rgba(255,255,255,.4) 9px 10px)}
.plvt-pleura.irregular{height:7px;left:35px;right:110px;transform:skewY(-2deg);top:90px}.plvt-tissue{position:absolute;left:35px;right:55px;top:95px;bottom:20px;background:radial-gradient(circle at 25% 30%,#aaa 0 2px,transparent 3px),radial-gradient(circle at 65% 60%,#777 0 2px,transparent 3px),linear-gradient(135deg,#555,#1b1b1b);background-size:14px 14px,17px 17px,auto;clip-path:polygon(0 0,88% 8%,100% 28%,91% 42%,100% 60%,82% 72%,93% 100%,0 100%)}.plvt-bronchogram{position:absolute;height:5px;background:#eee;border-radius:8px;z-index:4;box-shadow:0 0 7px #fff;animation:plvtBronch 1.5s infinite alternate}@keyframes plvtBronch{to{transform:translateX(4px);opacity:.55}}.br1{left:95px;top:155px;width:115px;transform:rotate(15deg)}.br2{left:145px;top:215px;width:100px;transform:rotate(-12deg)}.br3{left:80px;top:280px;width:140px;transform:rotate(7deg)}
.plvt-effusion-layout{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}.plvt-diaphragm{position:absolute;left:0;right:0;bottom:95px;height:7px;background:#fff;transform:rotate(-7deg);box-shadow:0 0 7px #fff;z-index:4}.plvt-fluid{position:absolute;left:0;right:0;bottom:95px;height:42%;background:rgba(12,36,45,.85);border-top:2px solid #8aa3aa;transition:height .25s}.plvt-lung-flap{position:absolute;left:38%;bottom:112px;width:110px;height:130px;background:linear-gradient(90deg,#848484,#2d2d2d);clip-path:polygon(50% 0,100% 100%,0 100%);opacity:.8;animation:plvtFloat 1.4s ease-in-out infinite alternate}@keyframes plvtFloat{to{transform:translateY(10px) scaleX(.92)}}.plvt-liver{position:absolute;left:0;right:0;bottom:0;height:92px;background:radial-gradient(#777 1px,transparent 2px),linear-gradient(#575757,#1d1d1d);background-size:9px 9px,auto}.plvt-effusion-controls label,.plvt-effusion-controls strong{display:block}.plvt-effusion-controls label{font-weight:800;color:var(--plvt-navy)}.plvt-effusion-controls strong{color:var(--plvt-teal);margin:10px 0}
.plvt-pathway{margin:20px 0}.plvt-path-start,.plvt-path-question{border-radius:14px;padding:13px 18px;text-align:center;font-weight:900}.plvt-path-start{background:var(--plvt-navy);color:#fff;max-width:220px;margin:auto}.plvt-path-arrow{text-align:center;font-size:1.5rem;color:var(--plvt-teal)}.plvt-path-question{background:#e8f5f6;border:1px solid #cde7e9;max-width:650px;margin:auto}.plvt-path-columns{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}.plvt-path-columns div{border:1px solid var(--plvt-line);border-top:4px solid var(--plvt-teal);border-radius:14px;padding:15px}.plvt-path-columns strong,.plvt-path-columns span,.plvt-path-columns small{display:block}.plvt-path-columns strong{color:var(--plvt-navy)}.plvt-path-columns span{font-size:.82rem;font-weight:800;margin:5px 0}.plvt-path-columns small{color:var(--plvt-muted)}
.plvt-quiz{display:grid;gap:16px}.plvt-quiz fieldset{border:1px solid var(--plvt-line);border-radius:15px;padding:16px 18px}.plvt-quiz legend{font-weight:900;color:var(--plvt-navy);padding:0 6px}.plvt-quiz label{display:block;padding:8px 0;cursor:pointer}.plvt-quiz input{accent-color:var(--plvt-teal);margin-right:7px}.plvt-result{padding:15px;border-radius:13px;background:var(--plvt-mint);border:1px solid #bfe8dd;font-weight:800}.plvt-result.is-low{background:var(--plvt-warning);border-color:#eed68c}
.plvt-finish-card{margin-top:24px;padding:22px;border-radius:18px;background:linear-gradient(135deg,var(--plvt-navy),#0b5b75);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:20px}.plvt-finish-card h4{color:#fff;font-size:1.25rem}.plvt-finish-card p{color:#d7eaed;margin:0}.plvt-finish-card .plvt-primary{flex:0 0 auto}
.plvt-controls{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--plvt-line);margin-top:28px;padding-top:20px}.plvt-footer{background:#f7fafb;border-top:1px solid var(--plvt-line);padding:16px 34px;color:var(--plvt-muted);font-size:.84rem}.plvt-footer summary{cursor:pointer;color:var(--plvt-navy);font-weight:800}.plvt-footer a{color:var(--plvt-blue)}
@media (max-width:950px){.plvt-layout{grid-template-columns:1fr}.plvt-station-nav{border-right:0;border-bottom:1px solid var(--plvt-line);flex-direction:row;overflow-x:auto;padding:12px}.plvt-station-nav button{min-width:168px}.plvt-step-grid,.plvt-ultrasound-grid,.plvt-zone-layout,.plvt-effusion-layout{grid-template-columns:1fr}.plvt-three{grid-template-columns:1fr 1fr}.plvt-path-columns{grid-template-columns:1fr 1fr}.plvt-logic-path{grid-template-columns:1fr}.plvt-scene{height:330px}}
@media (max-width:640px){.plvt-root{margin:12px 0}.plvt-shell{border-radius:0}.plvt-hero{padding:26px 20px}.plvt-brand-mark{width:50px;height:50px}.plvt-stage{padding:25px 18px 20px}.plvt-progress-wrap,.plvt-footer{padding-left:18px;padding-right:18px}.plvt-three,.plvt-setting-panel,.plvt-compare,.plvt-path-columns{grid-template-columns:1fr}.plvt-us-screen{height:310px}.plvt-body-map svg{height:390px}.plvt-mini-steps{grid-template-columns:1fr}.plvt-finish-card{align-items:flex-start;flex-direction:column}.plvt-controls button{flex:1}.plvt-knobs label{grid-template-columns:55px 1fr 62px}.plvt-meta span{font-size:.76rem}}
@media (prefers-reduced-motion:reduce){.plvt-root *{animation-duration:.001ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.001ms!important}}