#nhd-palpitations-protocol{--nhd-red:#5a0c12;--nhd-burgundy:#3a0000;--nhd-tan:#e4d1ba;--nhd-gold:#7a6040;--nhd-cream:#f7f1e8;--nhd-ink:#2b2320;font-family:Myriad Pro,Segoe UI,Arial,sans-serif;color:var(--nhd-ink);font-synthesis:none;line-height:1.6;margin:0;overflow-x:clip;-webkit-text-size-adjust:100%;text-size-adjust:100%}#nhd-palpitations-protocol *{box-sizing:border-box;font-synthesis:none}#nhd-palpitations-protocol img{max-width:100%;height:auto;display:block}#nhd-palpitations-protocol a{color:var(--nhd-red)}#nhd-palpitations-protocol .nhdPRO-wrap{max-width:1080px;margin:0 auto;padding:0 22px}#nhd-palpitations-protocol .nhdPRO-porter{font-family:Porter,Georgia,serif;font-weight:700;text-transform:uppercase;line-height:1.08;letter-spacing:.5px}#nhd-palpitations-protocol .nhdPRO-reveal{opacity:1;transition:opacity .7s ease,transform .7s ease}#nhd-palpitations-protocol.nhdPRO-js .nhdPRO-reveal:not(.nhdPRO-in){opacity:0;transform:translateY(22px)}#nhd-palpitations-protocol.nhdPRO-js .nhdPRO-fx-l:not(.nhdPRO-in){transform:translate(-30px)}#nhd-palpitations-protocol.nhdPRO-js .nhdPRO-fx-r:not(.nhdPRO-in){transform:translate(30px)}#nhd-palpitations-protocol.nhdPRO-js .nhdPRO-fx-zoom:not(.nhdPRO-in){transform:scale(.94)}#nhd-palpitations-protocol .nhdPRO-in{opacity:1;transform:none}#nhd-palpitations-protocol .nhdPRO-doc,#nhd-palpitations-protocol .nhdPRO-tier,#nhd-palpitations-protocol .nhdPRO-imagine,#nhd-palpitations-protocol .nhdPRO-discovery,#nhd-palpitations-protocol .nhdPRO-qa{content-visibility:auto;contain-intrinsic-size:auto 700px}@media(prefers-reduced-motion:reduce){#nhd-palpitations-protocol .nhdPRO-reveal{opacity:1;transform:none;transition:none}#nhd-palpitations-protocol *{animation:none!important}#nhd-palpitations-protocol .nhdPRO-ecg-active{display:none}#nhd-palpitations-protocol .nhdPRO-ecg-base{stroke-dasharray:none;stroke-dashoffset:0}#nhd-palpitations-protocol .nhdPRO-imagine:before{animation:none}#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-eyebrow,#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-h1,#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-h1sub,#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-timing,#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-lede,#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-callout,#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-btn,#nhd-palpitations-protocol .nhdPRO-sticky{animation:none;opacity:1;transform:none}}@keyframes nhdPROfadeUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-eyebrow{animation:nhdPROfadeUp .6s ease .05s both}#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-h1{animation:nhdPROfadeUp .6s ease .18s both}#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-h1sub{animation:nhdPROfadeUp .6s ease .32s both}#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-timing{animation:nhdPROfadeUp .6s ease .5s both}#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-lede+.nhdPRO-lede{animation:nhdPROfadeUp .6s ease .62s both}#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-callout{animation:nhdPROfadeUp .6s ease .74s both}#nhd-palpitations-protocol .nhdPRO-hero .nhdPRO-btn{animation:nhdPROfadeUp .6s ease .86s both,nhdPROpulse 2.4s ease-in-out 1.6s infinite}#nhd-palpitations-protocol .nhdPRO-hero{background:var(--nhd-tan);padding:56px 0 40px;text-align:center;position:relative;overflow:hidden}#nhd-palpitations-protocol .nhdPRO-eyebrow{display:inline-block;font-size:16px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--nhd-gold);border:1px solid var(--nhd-gold);border-radius:999px;padding:7px 18px;background:#ffffff8c;margin-bottom:20px}#nhd-palpitations-protocol .nhdPRO-h1{font-size:clamp(34px,5.4vw,50px);color:var(--nhd-red);margin:0 0 6px}#nhd-palpitations-protocol .nhdPRO-h1sub{font-size:clamp(19px,2.6vw,26px);color:var(--nhd-burgundy);margin:0 0 18px}#nhd-palpitations-protocol .nhdPRO-ecg{width:min(680px,92%);margin:8px auto 22px;display:block;overflow:visible}#nhd-palpitations-protocol .nhdPRO-ecg-node{fill:var(--nhd-gold)}#nhd-palpitations-protocol .nhdPRO-ecg-node-halo{fill:#7a604029}#nhd-palpitations-protocol .nhdPRO-ecg-base{fill:none;stroke:#c6b299;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:var(--nhdPROlen,1400);stroke-dashoffset:var(--nhdPROlen,1400);animation:nhdPROdraw 2.3s ease .15s forwards}@keyframes nhdPROdraw{to{stroke-dashoffset:0}}#nhd-palpitations-protocol .nhdPRO-ecg-node-halo{animation:nhdPROhalo 2.6s ease-in-out infinite}@keyframes nhdPROhalo{0%,to{r:12;opacity:1}50%{r:15;opacity:.7}}#nhd-palpitations-protocol .nhdPRO-ecg-active{fill:none;stroke:var(--nhd-red);stroke-width:3.2;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:90 var(--nhdPROlen,1400);stroke-dashoffset:90;filter:drop-shadow(0 0 4px rgba(90,12,18,.32));animation:nhdPROsweep 5.2s linear 2.4s infinite}@keyframes nhdPROsweep{0%{stroke-dashoffset:90}to{stroke-dashoffset:calc(-1 * var(--nhdPROlen,1400))}}#nhd-palpitations-protocol .nhdPRO-ecg-lite{width:min(440px,82%);margin:0 auto 20px}#nhd-palpitations-protocol .nhdPRO-ecg-lite .nhdPRO-ecg-node{fill:var(--nhd-tan)}#nhd-palpitations-protocol .nhdPRO-ecg-lite .nhdPRO-ecg-node-halo{fill:#e4d1ba2e}#nhd-palpitations-protocol .nhdPRO-ecg-lite .nhdPRO-ecg-base{stroke:#e4d1ba59}#nhd-palpitations-protocol .nhdPRO-ecg-lite .nhdPRO-ecg-active{stroke:var(--nhd-tan);stroke-width:3;filter:drop-shadow(0 0 4px rgba(228,209,186,.4))}#nhd-palpitations-protocol .nhdPRO-grid .nhdPRO-reveal:nth-child(2){transition-delay:.12s}#nhd-palpitations-protocol .nhdPRO-grid .nhdPRO-reveal:nth-child(3){transition-delay:.24s}#nhd-palpitations-protocol .nhdPRO-steps .nhdPRO-reveal:nth-child(2){transition-delay:.12s}#nhd-palpitations-protocol .nhdPRO-steps .nhdPRO-reveal:nth-child(3){transition-delay:.24s}#nhd-palpitations-protocol .nhdPRO-tierband.nhdPRO-in .nhdPRO-tiernum{animation:nhdPROpop .55s ease both}@keyframes nhdPROpop{0%{transform:scale(.55)}60%{transform:scale(1.12)}to{transform:scale(1)}}#nhd-palpitations-protocol .nhdPRO-lede{max-width:760px;margin:0 auto 12px;font-size:20px}#nhd-palpitations-protocol .nhdPRO-timing{font-weight:700;color:var(--nhd-burgundy);font-size:19px}#nhd-palpitations-protocol .nhdPRO-callout{font-weight:700;color:var(--nhd-red);font-size:21px;margin:16px auto 22px}#nhd-palpitations-protocol .nhdPRO-btn{display:inline-block;background:var(--nhd-red);color:#fff!important;text-decoration:none;font-weight:700;font-size:18px;letter-spacing:.8px;padding:16px 34px;border-radius:10px;box-shadow:0 6px 18px #3a000047;transition:transform .18s ease,box-shadow .18s ease,background .18s ease}#nhd-palpitations-protocol .nhdPRO-btn:hover{transform:translateY(-2px);background:var(--nhd-burgundy);box-shadow:0 10px 24px #3a000061}#nhd-palpitations-protocol .nhdPRO-btn-pulse{animation:nhdPROpulse 2.4s ease-in-out infinite}@keyframes nhdPROpulse{0%,to{box-shadow:0 6px 18px #3a000047}50%{box-shadow:0 6px 18px #3a000047,0 0 0 12px #5a0c121a}}#nhd-palpitations-protocol .nhdPRO-btn-ghost{display:inline-block;color:var(--nhd-red)!important;border:2px solid var(--nhd-red);text-decoration:none;font-weight:700;font-size:16px;padding:12px 26px;border-radius:10px;background:#fff;transition:all .18s ease}#nhd-palpitations-protocol .nhdPRO-btn-ghost:hover{background:var(--nhd-red);color:#fff!important}#nhd-palpitations-protocol .nhdPRO-bridge{background:var(--nhd-burgundy);color:#f3e8da;text-align:center;padding:22px;font-size:18px}#nhd-palpitations-protocol .nhdPRO-bridge strong{color:#fff}#nhd-palpitations-protocol .nhdPRO-tier{padding:64px 0 58px}#nhd-palpitations-protocol .nhdPRO-tier-white{background:linear-gradient(180deg,#ffffff 0%,#ffffff 76%,var(--nhd-cream) 100%)}#nhd-palpitations-protocol .nhdPRO-tier-tan{background:linear-gradient(180deg,var(--nhd-cream) 0%,var(--nhd-cream) 76%,#ffffff 100%)}#nhd-palpitations-protocol .nhdPRO-tierband{display:flex;align-items:center;gap:16px;margin-bottom:14px}#nhd-palpitations-protocol .nhdPRO-tiernum{flex:0 0 auto;width:46px;height:46px;border-radius:50%;background:var(--nhd-red);color:#fff;font-family:Porter,Georgia,serif;font-weight:700;font-size:22px;display:flex;align-items:center;justify-content:center}#nhd-palpitations-protocol .nhdPRO-h2{font-size:clamp(28px,4vw,40px);color:var(--nhd-red);margin:0;min-width:0;overflow-wrap:anywhere}#nhd-palpitations-protocol .nhdPRO-tierintro{max-width:820px;font-size:19px;margin:0 0 30px;color:#4a3e38}#nhd-palpitations-protocol .nhdPRO-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px}#nhd-palpitations-protocol .nhdPRO-card{background:#fff;border:2px solid #e8dcc9;border-radius:16px;padding:24px 22px 26px;display:flex;flex-direction:column;box-shadow:0 4px 14px #3a00000f;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}#nhd-palpitations-protocol .nhdPRO-tier-white .nhdPRO-card{border-color:#eee3d2;background:var(--nhd-cream)}#nhd-palpitations-protocol .nhdPRO-card:hover{transform:translateY(-7px);border-color:var(--nhd-gold);box-shadow:0 16px 34px #3a000029}#nhd-palpitations-protocol .nhdPRO-card-img{display:block;width:170px;height:170px;margin:0 auto 14px;border-radius:12px;overflow:hidden;background:#fff}#nhd-palpitations-protocol .nhdPRO-card-img img{width:100%;height:100%;object-fit:contain;transition:transform .3s ease}#nhd-palpitations-protocol .nhdPRO-card:hover .nhdPRO-card-img img{transform:scale(1.06)}#nhd-palpitations-protocol .nhdPRO-card-name{font-size:22px;color:var(--nhd-burgundy);margin:0 0 4px;text-align:center}#nhd-palpitations-protocol .nhdPRO-card-tag{text-align:center;font-size:16px;letter-spacing:1.2px;text-transform:uppercase;color:var(--nhd-gold);font-weight:700;margin-bottom:12px}#nhd-palpitations-protocol 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.nhdPRO-step-go{display:inline-block;margin-top:12px;font-size:17px;font-weight:700;color:var(--nhd-red);border-bottom:2px solid var(--nhd-red)}#nhd-palpitations-protocol a.nhdPRO-steplink:hover .nhdPRO-step-go{color:var(--nhd-burgundy);border-color:var(--nhd-burgundy)}#nhd-palpitations-protocol .nhdPRO-note{font-size:17px;color:#5d4f47;max-width:760px;margin:0 auto 18px;text-align:center}#nhd-palpitations-protocol .nhdPRO-footer{background:#fff;padding:36px 0 110px;text-align:center}#nhd-palpitations-protocol .nhdPRO-disclaimer{font-size:16px;color:#7a6c62;max-width:820px;margin:0 auto;line-height:1.6}#nhd-palpitations-protocol .nhdPRO-utility{background:var(--nhd-burgundy);color:var(--nhd-tan);font-size:16px}#nhd-palpitations-protocol .nhdPRO-utility-inner{max-width:1180px;margin:0 auto;padding:0 24px;display:flex;justify-content:flex-end;align-items:center;gap:32px;height:46px}#nhd-palpitations-protocol .nhdPRO-utility a{color:var(--nhd-tan);text-decoration:none;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:color .15s ease}#nhd-palpitations-protocol .nhdPRO-utility a:hover{color:#fff}@media(max-width:940px){#nhd-palpitations-protocol .nhdPRO-utility-inner{justify-content:center;gap:12px}}#nhd-palpitations-protocol .nhdPRO-nav{position:sticky;top:0;z-index:998;background:#fffffff5;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid rgba(50,50,51,.08)}#nhd-palpitations-protocol .nhdPRO-nav-inner{max-width:1180px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:82px}#nhd-palpitations-protocol .nhdPRO-nav-logo{display:flex;align-items:center;text-decoration:none}#nhd-palpitations-protocol .nhdPRO-nav-logo img{height:46px;width:auto;display:block}#nhd-palpitations-protocol .nhdPRO-nav-links{display:flex;gap:36px;align-items:center;font-weight:600;font-size:17px}#nhd-palpitations-protocol 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4px;min-width:44px;min-height:44px;align-items:center;justify-content:center}@media(max-width:940px){#nhd-palpitations-protocol .nhdPRO-nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;gap:0;padding:10px 24px 20px;border-bottom:1px solid rgba(50,50,51,.1);box-shadow:0 12px 24px #1f1e211a}#nhd-palpitations-protocol .nhdPRO-nav.nhdPRO-nav-open .nhdPRO-nav-links{display:flex}#nhd-palpitations-protocol .nhdPRO-nav-links a{padding:12px 0;width:100%}#nhd-palpitations-protocol .nhdPRO-nav-links a:not(.nhdPRO-nav-cta){min-height:50px;display:flex;align-items:center;font-size:18px}#nhd-palpitations-protocol .nhdPRO-nav-links .nhdPRO-nav-cta{margin-top:10px;font-size:16px;padding:15px 22px}#nhd-palpitations-protocol .nhdPRO-nav-burger{display:block}}#nhd-palpitations-protocol section[id]{scroll-margin-top:100px}#nhd-palpitations-protocol .nhdPRO-doc-photos{position:relative;padding-bottom:70px}#nhd-palpitations-protocol 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22px}#nhd-palpitations-protocol .nhdPRO-seen-logos img{height:30px}}#nhd-palpitations-protocol .nhdPRO-doc{background:linear-gradient(180deg,var(--nhd-cream) 0%,var(--nhd-cream) 70%,#ffffff 100%);padding:56px 0}#nhd-palpitations-protocol .nhdPRO-doc-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:52px;align-items:center}#nhd-palpitations-protocol .nhdPRO-doc-img{border-radius:16px;overflow:hidden;box-shadow:0 10px 28px #3a000029;border:3px solid #fff}#nhd-palpitations-protocol .nhdPRO-doc-h2{font-size:clamp(26px,3.6vw,36px);color:var(--nhd-red);margin:0 0 14px}#nhd-palpitations-protocol .nhdPRO-doc-name{font-size:21px;font-weight:700;color:var(--nhd-burgundy);margin:0 0 4px}#nhd-palpitations-protocol .nhdPRO-doc-creds{font-size:17px;font-weight:700;color:var(--nhd-gold);margin:0 0 16px}#nhd-palpitations-protocol .nhdPRO-doc p{font-size:18px;max-width:560px;margin:0 0 12px}@media(max-width:760px){#nhd-palpitations-protocol 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