.combining-page{padding-top:0;padding-bottom:50px}.combining-hero{display:grid;grid-template-columns:1.5fr 1fr;align-items:center;gap:60px;padding:64px 0 48px}.combining-hero h1{font-size:clamp(38px,4.7vw,62px)}.combining-hero p{color:var(--muted);max-width:460px;font-size:17px}.jump-link{display:inline-block;color:var(--ink);font-size:13px;margin-top:12px;text-underline-offset:5px}.hero-note{background:#e6edde;padding:32px;border-radius:10px}.hero-note>span{font-size:10px;letter-spacing:1.5px}.hero-note p{font:normal 29px/1.25 Georgia,serif;color:var(--ink);margin:20px 0}.hero-note small{font-size:12px;color:var(--muted);display:block;max-width:285px}.principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px;padding:30px 0 36px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.step-number{font-size:11px;color:#76876d}.principles h2{font-size:25px;margin:10px 0}.principles p{font-size:14px;color:var(--muted);margin:0}.pair-section{padding:54px 0 35px;scroll-margin-top:22px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:25px}.section-heading h2,.guide-faq h2,.closing-note h2{font-size:36px;line-height:1.15;margin:12px 0}.section-heading>p{font-size:13px;max-width:300px;color:var(--muted)}.pair-controls{display:grid;grid-template-columns:.7fr 1fr 1fr;gap:16px;background:#eaf0e4;padding:22px;border-radius:9px}.pair-controls label{font-size:12px;font-weight:bold;min-width:0}.pair-controls select{display:block;margin-top:8px;font-weight:normal;background:var(--paper);font-size:14px}.pair-answer{margin-top:18px;padding:28px;background:white;border:1px solid var(--line);border-radius:9px}.pair-answer h3{font-size:27px;line-height:1.2;margin:14px 0}.pair-answer>p{color:var(--muted);max-width:760px;font-size:15px}.pair-answer.caution{border-left:4px solid #aa7436}.pair-tag{display:inline-block;background:#eaf0e4;font-size:11px;padding:6px 10px;border-radius:4px}.caution .pair-tag{background:#fff0d9}.pair-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.pair-links a{border:1px solid #b5bfaf;border-radius:5px;padding:10px 14px;text-decoration:none;font-size:12px}.pair-sources{margin-top:22px;border-top:1px solid var(--line);padding-top:15px;font-size:12px}.pair-sources summary{cursor:pointer}.pair-sources a{display:inline-block;margin:10px 14px 0 0;text-underline-offset:4px}.pair-disclaimer{font-size:12px;color:var(--muted);margin:14px 0 0}.guide-faq{display:grid;grid-template-columns:1fr 1.7fr;gap:50px;border-top:1px solid var(--line);padding:45px 0}.faq-items details{border-bottom:1px solid var(--line);padding:18px 0}.faq-items summary{font-size:15px;cursor:pointer;padding-right:12px}.faq-items p,.faq-items a{font-size:14px;color:var(--muted)}.faq-items a{color:var(--ink)}.closing-note{padding:30px;border-radius:9px;background:#e9eee2}.closing-note p{font-size:14px;color:var(--muted)}@media(max-width:700px){.combining-hero{grid-template-columns:1fr;gap:25px;padding:32px 0}.combining-hero h1{font-size:39px}.hero-note{padding:24px}.hero-note p{font-size:26px}.principles{grid-template-columns:1fr;gap:25px}.principles article{display:grid;grid-template-columns:30px 1fr;column-gap:10px}.principles h2{margin:0 0 7px}.principles p{grid-column:2}.step-number{padding-top:7px}.section-heading{display:block}.pair-controls{grid-template-columns:1fr;padding:18px;gap:14px}.pair-section{padding-top:35px}.pair-answer{padding:20px}.pair-answer h3{font-size:24px}.pair-links{display:grid;grid-template-columns:1fr}.pair-links a{overflow-wrap:anywhere}.guide-faq{grid-template-columns:1fr;gap:15px;padding:35px 0}.guide-faq h2 br{display:none}.section-heading h2,.guide-faq h2,.closing-note h2{font-size:31px}.closing-note{padding:23px}}

/* Lectura principal, investigación desplegable y comparaciones. */
.product-feature{padding:1rem;margin:.75rem 0;border:1px solid var(--line,#88939a);border-radius:12px}
.product-feature h4,.product-feature h3{margin:0 0 .5rem}.product-feature p{margin:.4rem 0}
.technical-claims,.research-background{margin:1.2rem 0;padding:1rem;border:1px solid var(--line,#88939a);border-radius:12px}
.technical-claims>summary,.research-background>summary{cursor:pointer;min-height:44px;display:list-item;font-weight:600}
.decision-note{padding:1rem;border-left:3px solid currentColor;margin:1rem 0}.decision-note p{margin:.4rem 0}
.pair-contributions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin:1rem 0}
.pair-contributions section{padding:1rem;border:1px solid currentColor;border-radius:12px}.pair-contributions h4{margin:0 0 .5rem}
.pair-check{padding:.75rem;border-left:3px solid currentColor}
@media(max-width:600px){.pair-contributions{grid-template-columns:1fr}}