.tech-page{color:#153c39;background:#f4f7f6}.tech-page .container{max-width:1240px}.tech-hero{background:#fff;padding:28px 0 50px}.tech-breadcrumb{font-size:14px;margin-bottom:34px}.tech-hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center}.tech-hero h1{font-size:clamp(36px,4vw,58px);line-height:1.08;margin:16px 0 22px;letter-spacing:-.035em}.tech-hero .lede{font-size:20px;line-height:1.65;max-width:680px}.tech-hero figure{margin:0;min-width:0}.tech-hero img{width:100%;height:auto;max-height:370px;object-fit:contain}.tech-hero figcaption{font-size:12px;color:#617471;margin-top:12px}.tech-kicker{font-size:12px;letter-spacing:.14em;font-weight:700;color:#08736d}.tech-section{padding:38px 0;scroll-margin-top:24px}.tech-section>h2{font-size:clamp(26px,3vw,38px);margin:0 0 24px;line-height:1.2;letter-spacing:-.02em}.tech-section p,.tech-section li{line-height:1.75}.tech-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.tech-card{border:1px solid #d9e2df;background:#fff;border-radius:16px;padding:28px;min-width:0;overflow:hidden}.tech-card h3{font-size:23px;line-height:1.28;margin:8px 0 14px}.tech-card p{margin:0 0 14px}.tech-card>img,.tech-card>a>img{width:100%;height:230px;object-fit:contain;background:#fff;margin-bottom:20px}.tech-card h2{font-size:28px}.tech-materials{grid-template-columns:repeat(3,minmax(0,1fr))}.tech-materials .tech-card{padding:22px}.tech-materials h3{font-size:21px}.tech-materials .tech-card>a:not(:first-child){font-size:13px}.tech-value{font-size:14px;border-top:1px solid #e0e7e4;padding-top:14px;color:#42635e}.tech-note{padding:20px 24px;background:#e8efec;border-radius:10px;line-height:1.75}.tech-equation{font-size:clamp(20px,2.5vw,29px);line-height:2;padding:24px;background:#113e39;color:#fff;border-radius:12px;overflow-x:auto}.tech-steps{padding-left:26px}.tech-steps li{padding:10px 0 10px 8px}.tech-detail{background:white;border:1px solid #d9e2df;border-radius:12px;padding:20px}.tech-detail summary{font-weight:700;cursor:pointer}.tech-schema{margin:0 0 24px;padding:18px;background:#fff;border:1px solid #d9e2df;border-radius:16px}.tech-schema img{display:block;width:100%;height:auto;max-height:620px}.tech-schema figcaption{font-size:13px;color:#5b716b;margin:12px 8px}.tech-links{display:flex;gap:12px;flex-wrap:wrap}.tech-pill{display:inline-block;padding:12px 18px;background:white;border:1px solid #bacec6;border-radius:40px}.tech-request{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;padding:32px;background:#dfece5;border-radius:16px}.tech-request p{margin:0 0 12px}.tech-request .button{white-space:normal;text-align:center;max-width:290px}.tech-sources{border-top:1px solid #cbd8d2;padding:28px 0 40px;font-size:13px;line-height:1.7}.tech-page a:focus-visible,.tech-page summary:focus-visible{outline:3px solid #cb9b48;outline-offset:4px}.tech-page .button{display:inline-flex;margin-top:14px}.tech-section ul{padding-left:23px}.tech-section li{margin:12px 0}@media(max-width:950px){.tech-materials{grid-template-columns:repeat(2,minmax(0,1fr))}.tech-hero-grid{gap:24px}}@media(max-width:640px){.tech-hero-grid,.tech-grid,.tech-materials,.tech-request{grid-template-columns:1fr}.tech-hero{padding:20px 0 30px}.tech-section{padding:28px 0}.tech-card{padding:22px}.tech-hero-grid{gap:24px}.tech-hero img{max-height:250px}.tech-card>img,.tech-card>a>img{height:220px}.tech-request{padding:24px;gap:6px}.tech-schema{padding:6px}.tech-page .container{padding-left:18px;padding-right:18px}.tech-breadcrumb{margin-bottom:24px}}

/* V7: visual material selection, followed by expandable engineering detail. */
.tech-page{background:#f5f6f2}.tech-page .container{max-width:1320px}.tech-hero{background:#fbfbf8;padding:26px 0 46px}.tech-hero-grid{grid-template-columns:.82fr 1.18fr;gap:48px}.tech-hero h1{font-size:clamp(38px,4.6vw,64px);max-width:650px}.tech-hero .lede{font-size:18px;line-height:1.65}.tech-visual{margin:0;position:relative;background:#eef0e9;overflow:hidden}.tech-visual a{display:block}.tech-visual img{display:block;width:100%;height:300px;object-fit:cover;margin:0;transition:transform .3s ease}.tech-visual a:hover img{transform:scale(1.025)}.tech-visual figcaption{font-size:11px;line-height:1.4;padding:9px 16px;color:#526762;background:#f0f2ec}.tech-hero .tech-visual{border-radius:20px}.tech-hero .tech-visual img{height:460px;max-height:none;object-fit:cover}.tech-hero .tech-visual figcaption{margin:0}.tech-visual.tech-contain img{object-fit:contain;background:white}.tech-hero .tech-contain img{padding:20px;box-sizing:border-box}.tech-local-nav{display:flex;gap:10px;flex-wrap:wrap;padding:26px 0 12px;border-bottom:1px solid #dce3dd}.tech-local-nav .tech-pill{text-decoration:none;font-size:14px;padding:10px 16px}.tech-pill.is-current{color:white;background:#126b62;border-color:#126b62}.tech-section{padding:32px 0;scroll-margin-top:145px}.tech-direction,.tech-photo-card{padding:0!important;box-shadow:0 9px 25px #153c3905}.tech-card-copy{padding:25px 28px}.tech-card-copy>h2,.tech-card-copy>h3{margin:8px 0 12px}.tech-direction .tech-visual img{height:320px}.tech-direction p{font-size:16px;max-width:540px}.tech-direction .arrow{display:inline-block;font-weight:700;margin-top:5px}.tech-photo-card h3{font-size:23px}.tech-short{color:#62736d;font-size:16px}.tech-more{margin:14px 0 0;border-top:1px solid #dce4de;padding-top:14px;font-size:15px}.tech-more summary{cursor:pointer;font-weight:650;color:#116c61;line-height:1.5}.tech-more[open] summary{margin-bottom:14px}.tech-accordion{padding:22px 25px}.tech-accordion summary{font-size:20px;font-weight:650;cursor:pointer;line-height:1.5}.tech-accordion p{margin:18px 0 0}.tech-fold-section{padding:12px 0}.tech-chapter{background:white;border:1px solid #d9e2df;border-radius:16px}.tech-chapter>summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:25px 28px;cursor:pointer;list-style:none}.tech-chapter>summary::-webkit-details-marker{display:none}.tech-chapter>summary span{font-size:clamp(21px,2.3vw,29px);font-weight:700;line-height:1.3}.tech-chapter>summary small{font-size:12px;font-weight:400;color:#687a72;white-space:nowrap}.tech-chapter>summary:after{content:'+';font-size:30px;font-weight:400;color:#12756c}.tech-chapter[open]>summary:after{content:'−'}.tech-chapter-body{padding:0 28px 28px}.tech-gallery .tech-visual img{height:370px;object-fit:contain;background:#f8f8f4}.tech-gallery h3{font-size:21px}.tech-gallery .tech-card-copy{padding:12px 24px}.tech-materials .tech-card>img,.tech-materials .tech-card>a>img{height:260px;object-fit:contain}.tech-hero .button{padding:16px 24px;border-radius:8px}.tech-request{background:#123f39;color:#fff}.tech-request .button{background:#e8ede4;color:#123f39}.tech-request p{font-size:17px}.tech-sources{font-size:12px;color:#62746a;margin-top:32px}.tech-schema img{max-height:500px}.tech-card:has(.tech-more[open]){align-self:start}.tech-page .tech-grid{align-items:start}.tech-direction{align-self:stretch}.tech-page details>summary:focus-visible{outline:3px solid #bb9149;outline-offset:4px}.tech-materials .tech-more p{font-size:15px}.tech-kicker{letter-spacing:.12em}
@media(prefers-reduced-motion:reduce){.tech-visual img{transition:none}.tech-visual a:hover img{transform:none}}
@media(max-width:950px){.tech-hero-grid{grid-template-columns:1fr 1fr;gap:25px}.tech-hero .tech-visual img{height:390px}.tech-direction .tech-visual img{height:260px}.tech-card-copy{padding:22px}.tech-visual img{height:250px}.tech-chapter>summary small{display:none}}
@media(max-width:640px){.tech-hero-grid{grid-template-columns:1fr;gap:24px}.tech-hero h1{font-size:39px}.tech-hero .tech-visual img{height:270px;max-height:none}.tech-hero .lede{font-size:17px}.tech-hero{padding-bottom:24px}.tech-local-nav{gap:8px;padding-top:20px}.tech-local-nav .tech-pill{font-size:12px;padding:9px 13px}.tech-section{padding:25px 0;scroll-margin-top:105px}.tech-fold-section{padding:8px 0}.tech-card-copy{padding:20px}.tech-visual img,.tech-direction .tech-visual img{height:250px}.tech-gallery .tech-visual img{height:290px}.tech-chapter>summary{padding:20px;gap:15px}.tech-chapter-body{padding:0 18px 22px}.tech-materials .tech-card>a>img{height:250px}.tech-local-nav+.tech-section>h2{font-size:29px}.tech-hero .tech-visual figcaption{font-size:10px}.tech-request p{font-size:16px}}