.research-hero{position:relative;min-height:72svh;display:flex;align-items:flex-end;overflow:hidden;background:#07394a;color:#fff}
.research-hero-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;filter:saturate(.9) contrast(1.03)}
.research-hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,32,43,.92) 0%,rgba(3,32,43,.68) 48%,rgba(3,32,43,.3) 100%),linear-gradient(0deg,rgba(3,32,43,.78) 0%,transparent 52%)}
.research-hero-content{position:relative;z-index:2;padding-top:170px;padding-bottom:92px;max-width:900px;margin-left:0}
.research-hero h1{font-size:clamp(42px,6.2vw,86px);line-height:1.12;letter-spacing:.02em;margin:12px 0 24px}
.research-hero-content>p:last-child{max-width:760px;font-size:clamp(17px,1.6vw,22px);line-height:1.9;color:rgba(255,255,255,.88)}
.research-local-nav{position:sticky;top:76px;z-index:8;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.research-local-nav .wrap{display:flex;gap:26px;overflow-x:auto;scrollbar-width:none}
.research-local-nav a{padding:18px 0;white-space:nowrap;font-weight:700;color:var(--deep);border-bottom:2px solid transparent}
.research-local-nav a:hover{border-color:var(--aqua)}
.research-intro{display:grid;grid-template-columns:.72fr 1.28fr;gap:80px;align-items:start}
.research-intro h2{font-size:clamp(36px,4.4vw,64px);line-height:1.25;margin:10px 0 0}
.research-intro-copy .lead{font-size:22px;line-height:1.85;color:var(--deep);font-weight:600}
.research-intro-copy p{line-height:2;color:var(--muted)}
.area-section{padding:110px 0}
.area-section.alt{background:var(--paper)}
.area-heading{display:grid;grid-template-columns:110px 1fr;gap:28px;align-items:start;margin-bottom:54px}
.area-number{font-size:64px;font-weight:800;line-height:1;color:rgba(13,119,132,.25);letter-spacing:-.04em}
.area-heading h2{font-size:clamp(34px,4.2vw,60px);line-height:1.25;margin:8px 0 16px;color:var(--deep)}
.area-heading .area-tagline{font-size:20px;font-weight:700;color:var(--aqua);margin:0}
.area-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.area-layout.reverse{grid-template-columns:.95fr 1.05fr}
.area-layout.reverse .area-visual{order:2}
.area-visual{position:relative;border-radius:28px;overflow:hidden;min-height:500px;background:#0b5366;box-shadow:var(--shadow)}
.area-visual img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover}
.area-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(4,35,46,.58))}
.visual-caption{position:absolute;z-index:2;left:28px;right:28px;bottom:24px;color:#fff;font-size:14px;line-height:1.7}
.area-copy h3{font-size:26px;line-height:1.45;margin:0 0 18px;color:var(--deep)}
.area-copy>p{line-height:2;color:var(--muted)}
.research-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:30px 0}
.research-flow div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}
.alt .research-flow div{background:var(--bg)}
.research-flow span{display:block;font-size:12px;font-weight:800;color:var(--aqua);letter-spacing:.12em;margin-bottom:8px}
.research-flow strong{display:block;color:var(--deep);line-height:1.55}
.point-list{display:grid;gap:12px;margin:30px 0 0;padding:0;list-style:none}
.point-list li{position:relative;padding:15px 18px 15px 48px;border-left:3px solid var(--aqua);background:rgba(14,139,150,.06);border-radius:0 12px 12px 0;line-height:1.7;color:var(--deep);font-weight:600}
.point-list li::before{content:"✓";position:absolute;left:19px;top:15px;color:var(--aqua)}
.pcr-box{margin-top:34px;padding:28px;border-radius:20px;background:linear-gradient(135deg,#0a4d61,#0f7580);color:#fff}
.pcr-box h3{color:#fff;margin-bottom:12px}
.pcr-box p{color:rgba(255,255,255,.88);line-height:1.9}
.pcr-dual{display:grid;grid-template-columns:1fr 48px 1fr;align-items:center;gap:12px;margin-top:22px}
.pcr-dual article{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);padding:20px;border-radius:16px;text-align:center}
.pcr-dual article strong{display:block;margin-bottom:7px}.pcr-dual>span{text-align:center;font-size:28px;font-weight:700}
.paper-strip{margin-top:62px;border-top:1px solid var(--line);padding-top:34px}
.paper-strip-heading{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:22px}
.paper-strip-heading h3{font-size:24px;color:var(--deep);margin:0}.paper-strip-heading p{margin:0;color:var(--muted)}
.paper-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.paper-card{border:1px solid var(--line);background:#fff;border-radius:18px;padding:24px;display:flex;flex-direction:column;min-height:220px;transition:.2s ease}
.alt .paper-card{background:var(--bg)}
.paper-card:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(7,57,74,.1)}
.paper-card small{color:var(--aqua);font-weight:800;letter-spacing:.08em}.paper-card h4{font-size:17px;line-height:1.6;margin:12px 0;color:var(--deep)}
.paper-card p{font-size:14px;color:var(--muted);line-height:1.7;margin:0 0 18px}.paper-card a{margin-top:auto;color:var(--aqua);font-weight:700}
.preparing-section{background:linear-gradient(135deg,#092f3d,#0c5669);color:#fff;padding:100px 0}
.preparing-card{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.preparing-copy h2{font-size:clamp(38px,4.8vw,66px);line-height:1.2;margin:12px 0 24px}.preparing-copy p{font-size:18px;line-height:2;color:rgba(255,255,255,.82)}
.preparing-badge{display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:10px 16px;font-weight:700;margin-top:20px;background:rgba(255,255,255,.08)}
.preparing-visual{position:relative;min-height:420px;border-radius:26px;overflow:hidden;border:1px solid rgba(255,255,255,.18)}
.preparing-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.preparing-visual::after{content:"DETAILS COMING SOON";position:absolute;inset:auto 24px 24px 24px;background:rgba(4,34,45,.72);backdrop-filter:blur(8px);padding:18px;border-radius:14px;font-weight:800;letter-spacing:.12em;text-align:center}
.common-section{padding:100px 0;background:#fff}
.common-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.common-grid h2{font-size:clamp(34px,4vw,56px);line-height:1.25;margin:10px 0}.common-points{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.common-point{border:1px solid var(--line);border-radius:18px;padding:24px}.common-point span{font-size:12px;color:var(--aqua);font-weight:800;letter-spacing:.12em}.common-point h3{font-size:20px;margin:10px 0;color:var(--deep)}.common-point p{color:var(--muted);line-height:1.8}
.research-cta{padding:82px 0;background:var(--paper)}.research-cta-inner{display:flex;justify-content:space-between;gap:40px;align-items:center}.research-cta h2{font-size:clamp(30px,3.4vw,46px);margin:0 0 12px;color:var(--deep)}.research-cta p{color:var(--muted)}.research-cta-buttons{display:flex;gap:12px;flex-wrap:wrap}.research-cta .button-outline{border-color:var(--deep);color:var(--deep)}
@media(max-width:900px){.research-intro,.area-layout,.area-layout.reverse,.preparing-card,.common-grid{grid-template-columns:1fr}.area-layout.reverse .area-visual{order:0}.area-heading{grid-template-columns:72px 1fr}.area-number{font-size:48px}.area-visual{min-height:420px}.research-flow{grid-template-columns:1fr}.paper-cards{grid-template-columns:1fr}.research-cta-inner{align-items:flex-start;flex-direction:column}.common-points{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.research-hero{min-height:670px}.research-hero-content{padding-top:150px;padding-bottom:64px}.research-local-nav{top:65px}.area-section{padding:78px 0}.area-heading{grid-template-columns:1fr;gap:10px}.area-number{font-size:40px}.area-visual,.preparing-visual{min-height:330px}.pcr-dual{grid-template-columns:1fr}.pcr-dual>span{transform:rotate(90deg)}.common-points{grid-template-columns:1fr}.paper-strip-heading{align-items:flex-start;flex-direction:column}}


/* v17: expanded polysaccharide research story and visual paper cards */
.research-story{margin-top:62px;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.story-step{display:grid;grid-template-columns:58px 1fr;gap:20px;padding:28px;border:1px solid var(--line);border-radius:20px;background:#fff}
.story-index{display:flex;width:52px;height:52px;border-radius:50%;align-items:center;justify-content:center;background:rgba(14,139,150,.09);color:var(--aqua);font-weight:800;letter-spacing:.05em}
.story-kicker{margin:0 0 6px;font-size:11px;color:var(--aqua);font-weight:800;letter-spacing:.13em}
.story-step h3{margin:0 0 12px;color:var(--deep);font-size:20px;line-height:1.55}
.story-step p:last-child{margin:0;color:var(--muted);line-height:1.9}
.paper-strip-visual{margin-top:70px}
.paper-cards-visual{align-items:stretch}
.paper-card-visual{padding:0;overflow:hidden;min-height:100%;background:#fff}
.alt .paper-card-visual{background:#fff}
.paper-figure-link{display:block;aspect-ratio:4/3;overflow:hidden;background:#edf7f8;border-bottom:1px solid var(--line)}
.paper-figure-link img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.paper-card-visual:hover .paper-figure-link img{transform:scale(1.02)}
.paper-card-body{display:flex;flex-direction:column;flex:1;padding:24px}
.paper-card-body h4{font-size:16px}
.paper-card-body p{margin-bottom:18px}
.paper-card-body>a{margin-top:auto}
@media(max-width:900px){.research-story{grid-template-columns:1fr}}
@media(max-width:640px){.story-step{grid-template-columns:1fr}.story-index{width:44px;height:44px}}


/* v18: biomolecular control section */
.biomolecule-paper-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:820px){.biomolecule-paper-grid{grid-template-columns:1fr}}


/* v19: aqueous molecular design / hydration section */
.hydration-paper-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.hydration-note{margin-top:28px;padding:22px 26px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(135deg,rgba(14,139,150,.06),rgba(25,67,91,.03))}
.hydration-note strong{display:block;margin-bottom:6px;color:var(--deep);font-size:15px}
.hydration-note p{margin:0;color:var(--muted);line-height:1.85}
@media(max-width:820px){.hydration-paper-grid{grid-template-columns:1fr}}