.site-nav a.is-current{position:relative;color:var(--blue)}
.site-nav a.is-current::after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;background:var(--blue)}
.detail-hero{position:relative;min-height:690px;display:grid;grid-template-columns:43% 57%;align-items:center;overflow:hidden;background:radial-gradient(circle at 78% 42%,#e8f3ff 0,#f6faff 38%,#fff 72%)}
.detail-hero-copy{position:relative;z-index:3;padding:80px 3vw 90px clamp(24px,6vw,96px)}
.detail-hero h1{margin:.35em 0;color:var(--deep);font-size:clamp(3.2rem,5.4vw,5.8rem);line-height:1;letter-spacing:-.045em}
.detail-hero h1 strong{color:var(--blue)}
.hero-lead{max-width:720px;color:#304766;font-size:clamp(1.05rem,1.3vw,1.3rem);line-height:1.65}
.detail-hero-visual{position:absolute;z-index:1;inset:0}
.detail-hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#fff 0,rgba(255,255,255,.98) 32%,rgba(255,255,255,.72) 42%,rgba(255,255,255,0) 58%)}
.detail-hero-visual img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-actions{display:flex;align-items:center;gap:1.6rem;flex-wrap:wrap}
.text-link{color:var(--blue);font-weight:700;text-decoration:none}
.fact-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#dce6f7;border-top:1px solid #dce6f7;border-bottom:1px solid #dce6f7}
.fact-strip span{padding:22px clamp(18px,2.2vw,36px);background:#fff;color:var(--muted);font-size:.88rem;line-height:1.35}
.fact-strip b{display:block;margin-bottom:.25rem;color:var(--blue);font-size:.9rem;text-transform:uppercase;letter-spacing:.05em}
.section{max-width:1240px;margin:auto;padding:clamp(70px,8vw,120px) 28px}
.section-heading h2,.technical-panel h2,.evidence-cta h2{margin:.25em 0;color:var(--deep);font-size:clamp(2.2rem,4vw,4rem);line-height:1.08;letter-spacing:-.035em}
.intro-section{display:grid;grid-template-columns:40% 60%;gap:clamp(40px,7vw,100px)}
.section-copy{padding-top:1rem}
.section-copy p,.technical-panel>p,.evidence-cta p{color:var(--muted);font-size:1.08rem;line-height:1.75}
.section-subtitle{max-width:780px;margin:1rem auto 0;color:var(--muted);font-size:1.05rem;line-height:1.65}
.field-section{display:grid;grid-template-columns:48% 52%;gap:clamp(40px,7vw,90px);align-items:center;padding-top:30px}
.field-visual{padding:28px;background:linear-gradient(145deg,#f6faff,#e9f3ff);border:1px solid var(--line);border-radius:18px}
.field-visual img{display:block;width:100%;height:auto;mix-blend-mode:multiply}
.field-copy h2,.weha-special h2,.crystal-section h2{margin:.25em 0;color:var(--deep);font-size:clamp(2rem,3.5vw,3.35rem);line-height:1.1;letter-spacing:-.03em}
.field-copy>p,.weha-special .section-heading>p:last-child,.crystal-section p{color:var(--muted);font-size:1.05rem;line-height:1.72}
.technical-note{padding:16px 18px;border-left:3px solid var(--blue);background:var(--soft);font-size:.92rem!important}
.centered{text-align:center;max-width:850px;margin:0 auto 3rem}
.process-section{max-width:none;background:linear-gradient(180deg,#f7faff,#eef5ff)}
.process-section>.section-heading,.process-grid{max-width:1240px;margin-left:auto;margin-right:auto}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:0;padding:0;list-style:none}
.process-grid li{position:relative;padding:30px 26px;background:rgba(255,255,255,.9);border-top:3px solid var(--blue);box-shadow:0 14px 36px rgba(5,27,89,.06)}
.step-number{color:#7aa5ef;font-size:.8rem;font-weight:800;letter-spacing:.12em}
.process-grid h3{margin:1.1rem 0 .6rem;color:var(--deep);font-size:1.15rem}
.process-grid p{margin:0;color:var(--muted);line-height:1.6}
.process-symbol{width:58px;height:58px;margin:1.2rem 0;border:2px solid #4d82df;border-radius:50%;background:#edf5ff}
.water-symbol{background:radial-gradient(circle at 37% 35%,#fff 0 8%,#69aaf5 9% 17%,transparent 18%),radial-gradient(circle at 65% 63%,#fff 0 7%,#3f87e8 8% 16%,transparent 17%),#edf5ff}
.field-symbol{background:repeating-radial-gradient(circle,#edf5ff 0 5px,#4e84df 6px 7px)}
.crystal-symbol{border-radius:12px;background:linear-gradient(45deg,transparent 35%,#5c90e8 36% 42%,transparent 43%),linear-gradient(-45deg,transparent 35%,#90b7f3 36% 42%,transparent 43%),#edf5ff}
.pipe-symbol{border-radius:50%;box-shadow:inset 0 0 0 10px #9fb3ca,inset 0 0 0 16px #fff;background:#526881}
.comparison-section{max-width:none;background:#fff}
.comparison-section>.section-heading,.comparison-grid,.comparison-disclaimer{max-width:1240px;margin-left:auto;margin-right:auto}
.comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.comparison-card{position:relative;margin:0;padding:34px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 18px 50px rgba(5,27,89,.07);overflow:hidden}
.comparison-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:#8fa4bc}
.comparison-card.treated::before{background:var(--blue)}
.comparison-label{display:inline-block;margin-bottom:26px;padding:7px 12px;border-radius:999px;background:#edf1f5;color:#40536e;font-size:.76rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
.treated .comparison-label{background:#eaf2ff;color:var(--blue)}
.comparison-card img{display:block;width:100%;height:clamp(180px,15vw,230px);object-fit:contain;image-rendering:auto;border-radius:10px;background:linear-gradient(180deg,#f4f9ff,#fff)}
.comparison-card figcaption{padding-top:18px}
.comparison-card h3{margin:0 0 .5rem;color:var(--deep);font-size:1.35rem}
.comparison-card p{margin:0;color:var(--muted);line-height:1.65}
.comparison-disclaimer{margin-top:18px;color:#6d7b91;font-size:.86rem;line-height:1.5;text-align:center}
.weha-special{display:grid;grid-template-columns:38% 62%;gap:clamp(38px,6vw,80px);max-width:none;padding-left:clamp(28px,8vw,140px);padding-right:clamp(28px,8vw,140px);background:linear-gradient(120deg,#061d59,#0b4ec1);color:#fff}
.weha-special .eyebrow,.weha-special h2,.weha-special .section-heading>p:last-child{color:#fff}
.special-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.special-grid article{padding:26px 22px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);border-radius:14px}
.special-grid span{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#fff;color:var(--blue);font-size:.78rem;font-weight:800}
.special-grid h3{min-height:3.4em;margin:1.2rem 0 .6rem;font-size:1.08rem;line-height:1.35}
.special-grid p{margin:0;color:#dbe8ff;line-height:1.58;font-size:.93rem}
.technical-section{display:grid;grid-template-columns:62% 38%;gap:28px}
.technical-panel,.project-data{padding:clamp(30px,4vw,54px)}
.technical-panel{background:#f4f8ff}
.project-data{border:1px solid var(--line);background:#fff}
.project-data h3{font-size:1.75rem}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px;margin:2rem 0 0;padding:0;list-style:none}
.check-list li{position:relative;padding-left:26px;color:#304766;line-height:1.5}
.check-list li::before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:800}
.project-data dl{margin:1.7rem 0}
.project-data dl div{padding:13px 0;border-bottom:1px solid var(--line)}
.project-data dt{color:var(--blue);font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
.project-data dd{margin:.3rem 0 0;color:var(--muted);line-height:1.45}
.installation-photo{position:relative;min-height:420px;margin:0;overflow:hidden;border-radius:16px;background:#dfe9f5}
.installation-photo img{width:100%;height:100%;object-fit:cover}
.installation-photo figcaption{position:absolute;left:18px;right:18px;bottom:18px;padding:13px 16px;border-radius:8px;background:rgba(5,27,89,.86);color:#fff;font-size:.9rem;backdrop-filter:blur(5px)}
.crystal-section{display:grid;grid-template-columns:1fr 340px;gap:clamp(45px,8vw,110px);align-items:center;padding-top:20px}
.crystal-section figure{margin:0;padding:14px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 16px 42px rgba(5,27,89,.08)}
.crystal-section img{display:block;width:100%;height:280px;object-fit:cover;filter:contrast(1.04)}
.crystal-section figcaption{padding:12px 4px 2px;color:var(--muted);font-size:.82rem;line-height:1.45}
.principle-paper{max-width:none;display:grid;grid-template-columns:minmax(300px,.72fr) minmax(420px,1.28fr);gap:clamp(45px,8vw,120px);align-items:center;padding-left:clamp(28px,8vw,140px);padding-right:clamp(28px,8vw,140px);background:#eef4fc}.paper-preview{position:relative;display:block;max-width:520px;padding:18px;background:#fff;box-shadow:0 24px 54px rgba(5,27,89,.15);text-decoration:none;transition:.2s ease}.paper-preview:hover{transform:translateY(-4px);box-shadow:0 30px 62px rgba(5,27,89,.2)}.paper-preview img{display:block;width:100%;height:auto}.paper-preview span{position:absolute;right:30px;bottom:30px;padding:8px 11px;background:var(--blue);color:#fff;font-size:.68rem;font-weight:850;letter-spacing:.08em}.paper-copy h2{margin:.25rem 0 .5rem;color:var(--deep);font-size:clamp(2.4rem,4vw,4.2rem);line-height:1.05;letter-spacing:-.04em}.paper-author{margin:.7rem 0 1.4rem;color:var(--blue);font-weight:800}.paper-copy>p:not(.eyebrow):not(.paper-author):not(.paper-note){color:var(--muted);font-size:1.04rem;line-height:1.72}.paper-topics{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:1.7rem 0}.paper-topics span{padding:13px 14px;background:#fff;color:#304766;font-size:.84rem;line-height:1.45}.paper-topics b{margin-right:.5rem;color:var(--blue)}.paper-note{padding:14px 16px;border-left:3px solid #8fa8ca;background:rgba(255,255,255,.65);color:#65758b;font-size:.82rem;line-height:1.55}.paper-copy>.cta{display:inline-flex;margin-top:1rem}
.evidence-cta{max-width:none;display:flex;align-items:center;justify-content:space-between;gap:4rem;padding-left:clamp(28px,8vw,140px);padding-right:clamp(28px,8vw,140px);background:linear-gradient(105deg,#061d59,#0b4ec1);color:#fff}
.evidence-cta>div{max-width:800px}
.evidence-cta .eyebrow,.evidence-cta h2,.evidence-cta p{color:#fff}
.evidence-cta .cta{flex:0 0 auto;background:#fff;color:var(--blue)}
.footer{display:flex;align-items:center;justify-content:space-between;gap:2rem;padding-left:clamp(24px,6vw,90px);padding-right:clamp(24px,6vw,90px)}
.footer a{color:#fff}
@media(max-width:920px){.detail-hero{min-height:auto;grid-template-columns:1fr}.detail-hero-copy{padding-top:70px}.detail-hero-visual{opacity:.2}.detail-hero-visual::after{background:rgba(255,255,255,.72)}.fact-strip{grid-template-columns:1fr 1fr}.intro-section,.field-section,.technical-section,.weha-special,.crystal-section,.principle-paper{grid-template-columns:1fr}.process-grid,.comparison-grid{grid-template-columns:1fr 1fr}.special-grid{grid-template-columns:repeat(3,1fr)}.evidence-cta{align-items:flex-start;flex-direction:column}.check-list{grid-template-columns:1fr}.installation-photo{min-height:360px}.crystal-section figure{max-width:420px}.paper-preview{max-width:440px}}
@media(max-width:680px){.special-grid{grid-template-columns:1fr}.special-grid h3{min-height:0}.comparison-grid{grid-template-columns:1fr}}
@media(max-width:560px){.process-grid,.fact-strip,.paper-topics{grid-template-columns:1fr}.detail-hero h1{font-size:2.8rem}.section{padding-left:20px;padding-right:20px}.comparison-card{padding:24px 18px}.comparison-card img{height:150px}.footer{align-items:flex-start;flex-direction:column}}