.at-hero{position:relative;isolation:isolate;background:#04172d;overflow:hidden;min-height:480px;display:flex;align-items:center}.at-hero>img{position:absolute;right:0;top:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:-3}.at-hero::before{content:"";position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,#04172d 15%,#04172df2 35%,#04172d7a 52%,transparent 73%)}.at-hero::after{content:"";position:absolute;inset:0;z-index:-1;background:url('/assets/research-brainwaves.svg') center/cover;opacity:.12;pointer-events:none}.at-hero-copy{width:55%;padding:50px max(5vw,calc((100vw - 1200px)/2));padding-right:20px;color:#fff}.at-hero h1{font-size:clamp(38px,4vw,60px);line-height:1.05;margin:16px 0 22px}.at-hero .eyebrow{color:#9bd8ee}.at-hero-copy>p:not(.eyebrow){color:#e1edf5;max-width:440px}.at-hero .button{margin-top:14px}@media(max-width:750px){.at-hero{display:flex;flex-direction:column-reverse;align-items:stretch}.at-hero>img{position:relative;inset:auto;width:100%;height:290px;z-index:0;object-position:center}.at-hero-copy{width:100%;padding:35px 24px;box-sizing:border-box}.at-hero::before{display:none}.at-hero h1{font-size:42px}.at-hero::after{z-index:0}.at-hero-copy{position:relative;z-index:1}}

/* Defined editorial sections and highlighted key ideas. */
.at-story{padding-top:48px;padding-bottom:48px}.at-story-card{display:grid;grid-template-columns:.9fr 1.35fr;gap:42px;padding:42px;border:1px solid #d5e4ed;border-top:4px solid #248db4;border-radius:24px;background:linear-gradient(125deg,#eaf4f9,#f7fafc);box-shadow:0 12px 32px #173c5610}.at-story-card header{border-right:1px solid #c6dce7;padding-right:32px}.nf-page .at-story-card h2{font-size:clamp(28px,2.7vw,38px);line-height:1.2;margin-bottom:0}.at-story-card .eyebrow{margin-top:0;color:#156a90}.at-story-body>p{margin:0 0 22px;color:#3e5a70}.at-story-body>p:last-child{margin-bottom:0}.at-key-statement{background:#082a44;border-radius:16px;padding:24px 26px;border-left:4px solid #66c6e5;margin:24px 0}.nf-page .at-key-statement p{color:#fff;font-weight:700;font-size:20px;line-height:1.55;margin:0}.at-story-body>.at-key-statement:first-child{margin-top:0}.at-story-therapy .at-story-card{background:#f1f6f8;border-top-color:#648d9e}.at-story-therapy .at-key-statement{background:#e0eef4}.nf-page .at-story-therapy .at-key-statement p{color:#123c55}.nf-page .nf-faq{border-top:1px solid #d6e5ed;border-bottom:1px solid #d6e5ed;background:#f6fafc;border-radius:22px;margin-top:24px;margin-bottom:24px;padding:36px;max-width:1140px;box-sizing:border-box}
@media(max-width:800px){.at-story-card{grid-template-columns:1fr;gap:24px;padding:28px}.at-story-card header{border-right:0;border-bottom:1px solid #c6dce7;padding:0 0 24px}.at-story{padding-top:28px;padding-bottom:28px}.nf-page .at-key-statement p{font-size:18px}.at-key-statement{padding:22px}.nf-page .nf-faq{margin:24px;max-width:calc(100% - 48px);padding:28px}}

/* Shared PBM vagus tile and video dialog */
.pbm-mechanism-tile{display:grid;grid-template-columns:minmax(0,30%) minmax(0,1fr);border-radius:26px;overflow:hidden;background:#e2e3e6;color:#303238;isolation:isolate}
.pbm-mechanism-image{min-width:0;min-height:280px;background:#10101c;overflow:hidden}
.pbm-mechanism-copy{min-width:0;padding:32px 36px}
.pbm-mechanism-copy h3{font:800 clamp(22px,2vw,28px)/1.3 Manrope,Arial,sans-serif;margin:0 0 22px;color:#24272c}
.pbm-mechanism-copy p{font-size:17px;line-height:1.7;margin:0;color:#50555c;overflow-wrap:break-word}
.pbm-mechanism-copy ul{display:grid;gap:20px;list-style:none;padding:0;margin:24px 0 0}
.pbm-mechanism-copy li{display:grid;grid-template-columns:34px minmax(0,1fr);gap:13px;align-items:start}
.pbm-mechanism-icon{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:#f4f5f6;color:#363b44;font-size:23px;line-height:1}
@media(max-width:760px){.pbm-mechanism-tile{grid-template-columns:minmax(0,1fr);border-radius:20px}.pbm-mechanism-image{min-height:0;aspect-ratio:4/3}.pbm-mechanism-copy{padding:26px 22px}.pbm-mechanism-copy h3{font-size:23px;margin-bottom:18px}.pbm-mechanism-copy p{font-size:16px}.pbm-mechanism-copy ul{gap:20px;margin-top:22px}}
.pbm-mechanism-image{position:relative}
.pbm-vagus-neck-image{background:#fff}
.pbm-vagus-neck-image>img{display:block;position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.pbm-tile-watch{display:inline-flex;align-items:center;gap:12px;margin-top:24px;padding:13px 22px;border:0;border-radius:30px;background:#147b9e;color:#fff;font:700 16px/1.3 Manrope,Arial,sans-serif;cursor:pointer}.pbm-tile-watch:hover{background:#0d5b7b}.pbm-tile-watch:focus-visible{outline:3px solid #147b9e;outline-offset:4px}
.pbm-tile-watch{text-decoration:none}
.pbmr-video-dialog{width:min(1000px,94vw);max-width:94vw;padding:18px;border:1px solid #476f8a;border-radius:20px;background:#071a2b;color:#fff}
.pbmr-video-dialog::backdrop{background:#000c}
.pbmr-dialog-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 16px}
.pbmr-dialog-header h2{font:600 clamp(18px,3vw,25px)/1.3 Manrope,Arial,sans-serif;color:#fff;margin:0}
.pbmr-dialog-header button{background:#24445d;color:#fff;border:0;border-radius:50%;width:40px;height:40px;font-size:28px;cursor:pointer}
.pbmr-video-frame{aspect-ratio:16/9}.pbmr-video-frame iframe{display:block;width:100%;height:100%;border:0}
.at-vagus-tile{padding-top:0}