:root{--navy:#052544;--navy2:#0b3a68;--orange:#ff6500;--ink:#0d1b2a;--muted:#5f6e7d;--line:#dce4ec;--soft:#f5f8fb;--white:#fff;--shadow:0 16px 50px rgba(3,29,54,.10);--radius:22px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.55;-webkit-font-smoothing:antialiased}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}.container{width:min(1180px,calc(100% - 40px));margin-inline:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:16px;background:#fff;padding:10px 14px;z-index:9999}.trustbar{background:var(--navy);color:#fff;font-size:13px}.trustbar__inner{height:34px;display:flex;align-items:center;justify-content:center;gap:12px}.trustbar__inner span:nth-child(2),.trustbar__inner span:nth-child(4){color:var(--orange)}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(220,228,236,.9)}.header-row{height:74px;display:flex;align-items:center;gap:34px}.brand{font-size:20px;font-weight:850;letter-spacing:-.6px;color:var(--navy);white-space:nowrap}.nav{margin-left:auto;display:flex;gap:27px;font-size:14px;font-weight:650;color:#26384a}.nav a:hover{color:var(--orange)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:50px;padding:0 22px;border-radius:13px;font-weight:800;border:1px solid transparent;transition:.2s ease;cursor:pointer}.btn:hover{transform:translateY(-1px);box-shadow:0 9px 22px rgba(3,37,68,.13)}.btn--small{min-height:39px;padding:0 16px;border-radius:10px;font-size:14px}.btn--outline{border-color:#9bb0c3;color:var(--navy);background:#fff}.btn--orange{background:var(--orange);color:#fff}.btn--navy{background:var(--navy);color:#fff}.btn--light{background:#fff;color:var(--navy)}.btn--wide{width:100%}
.hero{padding:58px 0 44px;background:radial-gradient(circle at 80% 25%,#f0f6fb 0,rgba(240,246,251,.2) 38%,transparent 60%)}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:50px;align-items:center}.eyebrow{display:inline-block;font-size:12px;font-weight:900;letter-spacing:1.5px;color:var(--orange);margin-bottom:12px}.eyebrow--light{color:#ffb27a}.hero h1{font-size:clamp(42px,5.6vw,70px);line-height:.99;letter-spacing:-3px;margin:0 0 22px;color:var(--navy);max-width:680px}.lead{font-size:19px;color:#40556a;margin:0 0 20px;max-width:660px}.chips{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.chips span{font-size:13px;font-weight:800;color:var(--navy);background:#f5f8fb;border:1px solid var(--line);padding:9px 12px;border-radius:10px}.checks{list-style:none;padding:0;margin:24px 0;display:grid;gap:11px}.checks li{position:relative;padding-left:28px;color:#26384a}.checks li:before{content:"✓";position:absolute;left:0;top:0;color:var(--orange);font-weight:900}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.micro{font-size:13px;color:#758292;margin:10px 0 0}.hero-visual{position:relative;min-height:520px;padding:16px 0 0 24px}.stock-badge{position:absolute;right:0;top:0;z-index:3;background:var(--orange);color:#fff;padding:12px 16px;border-radius:12px;font-weight:850;box-shadow:0 12px 28px rgba(255,101,0,.22)}.stock-badge span{font-size:12px;margin-right:7px}.photo-card{margin:0;position:absolute;background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}.photo-card img{width:100%;height:100%;object-fit:cover}.photo-card figcaption{position:absolute;left:12px;bottom:12px;background:rgba(5,37,68,.86);color:#fff;font-size:11px;padding:7px 9px;border-radius:8px;backdrop-filter:blur(8px)}.photo-card--main{left:0;top:55px;width:86%;height:410px}.photo-card--float{right:0;bottom:0;width:46%;height:215px;border:8px solid #fff}.photo-card--main img{object-position:center 52%}.photo-card--float img{object-position:center 54%}
.quick-trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr)}.quick-grid div{padding:25px 24px;border-right:1px solid var(--line);display:flex;flex-direction:column}.quick-grid div:last-child{border-right:0}.quick-grid strong{font-size:22px;color:var(--navy);letter-spacing:-.7px}.quick-grid span{font-size:13px;color:var(--muted)}
.section{padding:86px 0}.section--soft{background:var(--soft)}.section-head{text-align:center;max-width:760px;margin:0 auto 38px}.section-head h2,.about-grid h2,.cta-band h2{font-size:clamp(32px,4vw,48px);line-height:1.08;letter-spacing:-1.7px;color:var(--navy);margin:0 0 14px}.section-head p{color:var(--muted);margin:0}.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.spec-card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff;box-shadow:0 8px 22px rgba(3,37,68,.04)}.spec-title{display:flex;align-items:center;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line)}.iconbox{width:50px;height:50px;display:grid;place-items:center;border-radius:15px;background:#eef5fb;color:var(--navy);font-size:20px;font-weight:950}.spec-title small{color:var(--muted)}.spec-title h3{margin:3px 0 0;font-size:23px;color:var(--navy)}dl{margin:16px 0 0}dl div{display:flex;justify-content:space-between;gap:20px;padding:11px 0;border-bottom:1px dashed #e7edf3}dl div:last-child{border-bottom:0}dt{color:#526475}dd{margin:0;font-weight:800;color:#142b40;text-align:right}.tech-note{margin:20px 0 0;padding:15px 18px;background:#fff7f1;border-left:4px solid var(--orange);border-radius:8px;color:#64472f;font-size:14px}
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:55px;align-items:start}.about-grid>div:first-child>p{color:#506273;font-size:17px}.text-link{font-weight:850;color:var(--orange)}.use-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.use-grid article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;min-height:175px}.use-grid span{font-size:12px;font-weight:900;color:var(--orange)}.use-grid h3{margin:10px 0 8px;color:var(--navy)}.use-grid p{margin:0;color:var(--muted);font-size:14px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.gallery figure{margin:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover}.gallery figcaption{padding:12px 14px;font-weight:700;color:#33495c;font-size:13px}.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.benefit-grid article{border:1px solid var(--line);background:#fff;border-radius:18px;padding:22px}.benefit-icon{width:44px;height:44px;border-radius:13px;background:#fff1e7;color:var(--orange);display:grid;place-items:center;font-size:22px;font-weight:900}.benefit-grid h3{color:var(--navy);margin:13px 0 8px}.benefit-grid p{color:var(--muted);margin:0;font-size:14px}
.cta-band{background:linear-gradient(135deg,var(--navy) 0,#063963 100%);color:#fff;padding:60px 0}.cta-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:center}.cta-band h2{color:#fff}.cta-band p{color:#c6d3df;font-size:17px}.cta-actions{display:grid;gap:11px}.contact-line{font-size:12px;color:#afc1d0;text-align:center}.faq-wrap{max-width:950px}.faq{display:grid;gap:10px}.faq details{border:1px solid var(--line);border-radius:14px;background:#fff;padding:0 18px}.faq summary{list-style:none;cursor:pointer;font-weight:800;color:var(--navy);padding:18px 34px 18px 0;position:relative}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";position:absolute;right:2px;top:14px;font-size:24px;color:var(--orange)}.faq details[open] summary:after{content:"–"}.faq details p{margin:0 0 18px;color:var(--muted)}
.footer{background:#031c34;color:#c5d1dc;padding:48px 0 90px}.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr .9fr;gap:36px}.footer-grid>div{display:flex;flex-direction:column;gap:9px}.footer-grid strong{color:#fff}.footer-brand{font-size:20px}.footer p{margin:0;color:#9fb2c2;max-width:370px}.footer a:hover{color:#fff}.mobile-cta{display:none}.cookie{position:fixed;z-index:99;left:20px;right:20px;bottom:20px;max-width:760px;margin:auto;background:#fff;border:1px solid var(--line);box-shadow:0 20px 80px rgba(0,0,0,.2);border-radius:16px;padding:14px 16px;align-items:center;gap:20px}.cookie:not([hidden]){display:flex}.cookie p{margin:0;font-size:13px;color:#43586a;flex:1}.cookie a{text-decoration:underline}.cookie>div{display:flex;gap:8px}.cookie-btn{border:1px solid var(--line);background:#fff;padding:9px 13px;border-radius:9px;font-weight:750}.cookie-btn--accept{background:var(--navy);color:#fff;border-color:var(--navy)}
@media(max-width:1000px){.nav{display:none}.header-row{height:64px}.btn--small{margin-left:auto}.hero{padding-top:38px}.hero-grid,.about-grid,.cta-grid{grid-template-columns:1fr}.hero-visual{min-height:510px}.photo-card--main{width:78%}.quick-grid{grid-template-columns:1fr 1fr}.quick-grid div:nth-child(2){border-right:0}.quick-grid div:nth-child(-n+2){border-bottom:1px solid var(--line)}.benefit-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:700px){body{padding-bottom:68px}.container{width:min(100% - 26px,1180px)}.trustbar__inner{font-size:11px;gap:8px}.brand{font-size:16px}.btn--small{font-size:0;width:42px;padding:0}.btn--small:after{content:"WA";font-size:11px}.hero{padding:32px 0 25px}.hero h1{font-size:43px;letter-spacing:-2.2px}.lead{font-size:16px}.hero-actions .btn{flex:1;min-width:0;padding:0 14px;font-size:14px}.hero-visual{min-height:420px;padding-left:0}.photo-card--main{left:0;top:50px;width:88%;height:315px}.photo-card--float{width:49%;height:170px;bottom:0}.stock-badge{font-size:12px;padding:10px 12px}.quick-grid div{padding:18px 14px}.quick-grid strong{font-size:18px}.quick-grid span{font-size:12px}.section{padding:62px 0}.section-head{text-align:left}.section-head h2,.about-grid h2,.cta-band h2{font-size:34px}.spec-grid,.use-grid,.gallery,.benefit-grid{grid-template-columns:1fr}.spec-card{padding:20px}.gallery{gap:12px}.gallery figure:nth-child(n+5){display:none}.cta-band{padding:48px 0}.footer{padding-bottom:32px}.footer-grid{grid-template-columns:1fr}.mobile-cta{position:fixed;display:grid;grid-template-columns:1fr 1.2fr;left:0;right:0;bottom:0;z-index:88;box-shadow:0 -8px 24px rgba(0,0,0,.14)}.mobile-cta a{height:62px;display:grid;place-items:center;font-weight:900;color:#fff;background:var(--navy)}.mobile-cta a:last-child{background:var(--orange)}.cookie{bottom:78px;flex-direction:column;align-items:stretch}.cookie>div{justify-content:flex-end}}


/* Official Hydrosila source blocks */
.source-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.source-links a{display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border:1px solid #d7e0e8;border-radius:999px;background:#fff;color:#0b3559;font-weight:700;font-size:.9rem;text-decoration:none}
.source-links a:hover{border-color:#0b3559;transform:translateY(-1px)}
.gallery--official{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.gallery--official .gallery-feature{display:flex;flex-direction:column;overflow:hidden;border:1px solid #e1e7ec;border-radius:22px;background:#fff;box-shadow:0 16px 40px rgba(4,29,52,.08)}
.gallery--official .gallery-feature img{width:100%;height:360px;object-fit:contain;background:#fff;padding:22px}
.gallery--official .gallery-feature figcaption{display:flex;flex-direction:column;gap:8px;padding:18px 20px 22px;border-top:1px solid #edf1f4}
.gallery--official .gallery-feature figcaption strong{font-size:1.12rem;color:#082f50}
.gallery--official .gallery-feature figcaption span{color:#536575;line-height:1.55}
.gallery--official .gallery-feature figcaption a{font-weight:800;color:#c65b09;text-decoration:none}
.catalog-callout{margin-top:24px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 28px;border-radius:22px;background:linear-gradient(135deg,#eef4f8,#fff);border:1px solid #dce6ed}
.catalog-callout h3{margin:4px 0 8px;color:#082f50;font-size:1.35rem}
.catalog-callout p{margin:0;color:#536575;max-width:760px;line-height:1.65}
@media (max-width:800px){.gallery--official{grid-template-columns:1fr}.gallery--official .gallery-feature img{height:290px}.catalog-callout{align-items:flex-start;flex-direction:column}}


/* Campaign price highlight */
.promo-price{display:grid;gap:10px;margin:0 0 20px;padding:18px 20px;border-radius:20px;background:linear-gradient(135deg,#fff4ea 0,#ffffff 100%);border:1px solid #ffd8bf;box-shadow:0 16px 44px rgba(255,101,0,.12);max-width:560px}.promo-price__tag{display:inline-flex;align-items:center;justify-content:center;width:max-content;background:var(--orange);color:#fff;font-size:12px;font-weight:900;letter-spacing:1px;padding:8px 12px;border-radius:999px}.promo-price__row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.promo-price__old{font-size:20px;font-weight:800;color:#8a96a3;text-decoration:line-through}.promo-price__save{font-size:13px;font-weight:800;color:#b94a00;background:#ffe6d5;padding:6px 10px;border-radius:999px}.promo-price__main{font-size:42px;line-height:1;font-weight:950;color:var(--navy);letter-spacing:-1.6px}.promo-price__main small{font-size:20px;font-weight:900;color:var(--orange)}.promo-price__note{font-size:14px;color:#5c6e7d}.quick-grid div strong{word-break:break-word}@media(max-width:700px){.promo-price{padding:16px}.promo-price__main{font-size:34px}.promo-price__main small{font-size:17px}.promo-price__old{font-size:17px}}