.product-section-nav{display:flex;flex-wrap:wrap;gap:10px 28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-top:20px;padding-bottom:20px;font-size:12px}
.product-section-nav a{padding:5px 0}.product-section-nav a:hover{color:#66884a;text-decoration:underline;text-underline-offset:7px}
.product-profile{display:grid;grid-template-columns:1fr 1fr;gap:85px;align-items:start}
.product-profile h2{font-size:38px;margin:18px 0 30px;line-height:1.3}
.product-profile p:not(.eyebrow){font-size:14px;line-height:2;margin:18px 0}
.spec-panel{padding:30px 35px;background:#eff3e9;border:1px solid #dce5d4}
.spec-panel h3{font-size:20px;font-family:var(--serif);margin-bottom:20px}
.spec-panel dl{margin:0}.spec-panel dl>div{display:grid;grid-template-columns:minmax(90px,1fr) 2fr;gap:20px;padding:16px 0;border-top:1px solid #d7e1cf;font-size:12px}
.spec-panel dt{color:#708163}.spec-panel dd{margin:0;overflow-wrap:anywhere;line-height:1.8}
.formula-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.formula-grid article{padding:30px;background:#f0f3e9;border:1px solid #e0e6d7}
.formula-number{font-family:var(--serif);font-size:32px;color:#94a77c}
.formula-grid h3{font-size:20px;margin:22px 0 15px}.formula-grid p{font-size:13px;line-height:1.95}
.product-film{padding:80px 0;background:#e8eee0}
.film-player{max-width:1000px;margin:auto;background:#173f36;border:1px solid #d2ddc6}
.film-player video{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain}
.film-player video::cue{color:#fff;background:#102d23e6;font-family:Arial,'Microsoft YaHei',sans-serif;font-size:clamp(12px,1.6vw,22px)}
.caption-controls{display:flex;align-items:center;flex-wrap:wrap;gap:9px;max-width:1000px;margin:20px auto 0}
.caption-controls>span{font-size:11px;margin-right:9px}
.caption-controls button{background:#f8faf4;border:1px solid #c6d4bb;padding:9px 14px;font-size:11px;min-height:38px;border-radius:3px}
.caption-controls button[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}
.caption-controls button:hover{box-shadow:0 0 0 1px #93a880}
.film-note{max-width:1000px;margin:18px auto 0;font-size:10px;line-height:1.9}
.product-routine{display:grid;grid-template-columns:1fr 1.5fr;gap:90px}
.product-routine h2{font-size:38px;margin:17px 0 25px}
.product-routine>div>p:not(.eyebrow){font-size:13px;line-height:2}
.product-routine ol{list-style:none;padding:0;margin:0}
.product-routine li{display:grid;grid-template-columns:45px 1fr;gap:20px;border-top:1px solid var(--line);padding:25px 0}
.routine-number{font-family:var(--serif);font-size:28px;color:#8c9e76}
.product-routine h3{font-size:18px;margin-bottom:12px}.product-routine li p{font-size:13px;line-height:1.95}
.product-credential-section{background:#f0f3e9;padding:75px 0}
.product-certificate-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}
.product-certificate{display:flex;align-items:center;gap:25px;padding:25px;background:#fafbf7;border:1px solid #dae3d1}
.product-certificate:hover{border-color:#93a97d}
.product-certificate-image{display:block;width:48%;height:145px;flex-shrink:0}
.product-certificate-image img{width:100%;height:100%;object-fit:contain}
.product-certificate strong{display:block;font-size:17px;font-weight:400;line-height:1.5}
.product-certificate small{display:block;font-size:11px;color:#728266;margin-top:14px}
.product-credential-note{font-size:11px;line-height:1.95;margin-top:24px;max-width:1000px}
.product-source-note{font-size:10px;line-height:1.9;padding-top:25px}
.certificate-summary{display:block;font-size:12px;line-height:1.85;margin-top:12px;color:#647265}
.product-certificate-image{height:230px;width:38%}
.product-certificate{align-items:flex-start}
.result-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:36px 0}
.result-metrics>div{padding:32px 24px;border-right:1px solid var(--line)}
.result-metrics>div:last-child{border-right:0}.result-metrics strong{display:block;font:44px/1.15 var(--serif);margin-bottom:18px}.result-metrics span{font-size:13px;line-height:1.8}
.evidence-note{font-size:12px;line-height:1.95;color:#667366;margin:24px 0;overflow-wrap:anywhere}
.tolerance-note{font-size:12px;line-height:1.9;background:#f0f3e9;padding:20px 24px;margin:24px 0}
.result-table-scroll{overflow:auto;max-width:100%;border:1px solid var(--line)}
.result-table{border-collapse:collapse;width:100%;min-width:580px;font-size:12px;text-align:left}
.result-table caption{padding:18px;text-align:left;font-size:12px;color:#667366}
.result-table th,.result-table td{padding:18px 15px;border-top:1px solid var(--line)}
.result-table thead{background:#eaf0e2}.result-table tbody tr:last-child{background:#eff3e9}.result-table th{font-weight:500}
.comparison-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}
.comparison-pair{background:#eff3e9;padding:20px}.comparison-pair>div{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:20px}.comparison-pair figure{margin:0}.comparison-pair img{display:block;width:100%;height:auto}.comparison-pair figcaption{text-align:center;padding:12px 2px;font-size:12px}
.report-pages{max-width:1060px;display:grid;gap:40px;padding-bottom:80px}.report-pages figure{margin:0}.report-pages img{display:block;width:100%;height:auto;border:1px solid var(--line)}.report-pages figcaption{text-align:center;padding:15px}
.credential-document .document-image img{object-fit:contain;max-height:560px;width:100%;height:auto}.credential-document .document-image{background:#edf1e8;padding:20px}.credential-preview-images img{object-fit:contain!important}
@media(max-width:1050px){.comparison-grid{grid-template-columns:1fr}.comparison-pair{max-width:700px;width:100%;margin:auto}.result-metrics strong{font-size:36px}}
@media(max-width:600px){.result-metrics{grid-template-columns:1fr}.result-metrics>div{border-right:0;border-bottom:1px solid var(--line);padding:22px 5px}.result-metrics>div:last-child{border-bottom:0}.result-metrics strong{font-size:36px;margin-bottom:10px}.comparison-pair{padding:14px}.certificate-summary{font-size:11px}.product-certificate-image{height:170px}.product-certificate{gap:16px}.tolerance-note{padding:18px}.evidence-note{font-size:11px}}
@media(max-width:1050px){.product-profile,.product-routine{gap:40px}.spec-panel{padding:25px}.product-profile h2{font-size:33px}.formula-grid article{padding:23px}.product-certificate{padding:20px;gap:18px}.product-certificate-image{height:115px}.product-certificate strong{font-size:15px}}
@media(max-width:750px){.product-profile,.product-routine{grid-template-columns:1fr;gap:32px}.product-profile h2,.product-routine h2{font-size:32px}.formula-grid{grid-template-columns:1fr;gap:18px}.formula-grid article{padding:26px}.formula-grid h3{margin-top:10px}.product-film{padding:55px 0}.product-certificate-grid{grid-template-columns:1fr;gap:18px}.product-credential-section{padding:55px 0}.product-certificate-image{height:130px}.product-certificate strong{font-size:17px}.product-section-nav{gap:8px 19px;font-size:11px}.caption-controls{gap:7px}.caption-controls>span{width:100%;margin-bottom:2px}.caption-controls button{padding:8px 11px}.spec-panel dl>div{grid-template-columns:100px 1fr}.film-note{font-size:9px}.product-profile p:not(.eyebrow){font-size:13px}}
@media(max-width:390px){.spec-panel{padding:22px}.spec-panel dl>div{grid-template-columns:80px 1fr;gap:16px}.product-profile h2{font-size:29px}.product-certificate{gap:14px;padding:18px}.product-certificate-image{height:110px}.product-certificate strong{font-size:15px}}

/* Product detail refinement: quiet surfaces, clearer hierarchy, compact evidence. */
.product-page{--panel:#f0f4eb;--soft-shadow:0 14px 40px #173f3608}
.product-page>.container,.product-page>section>.container{max-width:1200px}
.product-page .section{padding-top:80px;padding-bottom:80px}
.product-page .section-heading{gap:48px;align-items:flex-start;margin-bottom:32px}
.product-page .section-heading h2{font-size:clamp(28px,3.2vw,40px);line-height:1.25}
.product-page .section-heading>p{flex-basis:400px;max-width:400px;font-size:14px}
.product-page section[id]{scroll-margin-top:78px}
.product-page .breadcrumbs{padding-top:23px;padding-bottom:23px;font-size:12px}
.product-intro{gap:64px;padding-bottom:56px}
.product-stage{border:1px solid #dfe7d9;border-radius:24px;background:radial-gradient(ellipse at 45% 35%,#fafcf7,#e8eedf);box-shadow:var(--soft-shadow)}
.product-stage.sun{background:radial-gradient(ellipse at 45% 35%,#fbfdfc,#e9f0ed)}
.product-stage.nose{background:#eef2f1}
.product-stage img{padding:42px;transition:transform .35s ease}.product-stage:hover img{transform:scale(1.025)}
.stage-label,.stage-caption{font-size:10px;letter-spacing:1.5px;left:27px}.stage-caption{bottom:24px}
.product-intro-copy h1{font-size:clamp(35px,4vw,55px);line-height:1.18;letter-spacing:-.035em;margin:16px 0 20px}
.product-subtitle{font-family:var(--sans);font-size:19px;line-height:1.6;color:#667b5d}
.product-intro-copy .tags{gap:8px;margin:20px 0}.product-intro-copy .tags span{border-radius:24px;background:#edf3e7;border:1px solid #dce6d3;font-size:11px;padding:6px 12px}
.product-overview{margin-top:21px;padding:21px 0}.product-overview p{font-size:14px;line-height:1.95}
.product-page .button{border-radius:8px;min-height:48px;padding:14px 22px}
.product-intro-copy .fine-print{margin-top:15px;font-size:11px}
.product-section-nav{position:sticky;top:var(--product-header-height,89px);z-index:15;display:flex;flex-wrap:nowrap;gap:6px;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;border:1px solid #dce4d6;border-radius:12px;padding:10px;background:#fafbf7f5;backdrop-filter:blur(18px);box-shadow:0 8px 28px #173f360a}
.product-section-nav a{flex:none;padding:10px 17px;border-radius:7px;font-size:12px;white-space:nowrap;transition:background .18s,color .18s}
.product-section-nav a:hover{background:#eaf0e4;color:var(--ink);text-decoration:none}.product-section-nav a[aria-current="location"]{background:#173f36;color:#fff}
.product-profile{gap:60px}.product-profile h2{font-size:32px;line-height:1.4;margin:14px 0 25px}.product-profile p:not(.eyebrow){font-size:14px;line-height:2}
.spec-panel{border-radius:18px;padding:28px 30px;background:var(--panel);box-shadow:var(--soft-shadow)}
.spec-panel h3{font-family:var(--sans);font-size:18px;letter-spacing:.5px;margin-bottom:18px}.spec-panel dl>div{padding:13px 0;gap:18px;font-size:12px}
.product-advantages{background:#f0f4eb;border-top:1px solid #e3e9dc;border-bottom:1px solid #e3e9dc}
.product-feature-grid{gap:22px;margin-top:28px}.product-feature-grid article{background:#fafbf7;border:1px solid #dde5d6;border-radius:16px;padding:28px;box-shadow:var(--soft-shadow)}
.feature-index{font-size:26px;color:#7c946a}.product-feature-grid h3{font-size:20px;margin:20px 0 14px}.product-feature-grid p{font-size:13px;line-height:1.95}
.formula-grid{gap:20px}.formula-grid article{position:relative;border-radius:16px;padding:28px;background:linear-gradient(145deg,#f3f6ed,#edf2e5);border-color:#dce5d2}
.formula-number{display:grid;place-items:center;width:43px;height:43px;border-radius:50%;background:#e1ebd6;font-size:21px;color:#5a7747}
.formula-grid h3{font-size:20px;margin:22px 0 14px}.formula-grid p{font-size:13px;line-height:1.95}
.product-results{border-top:1px solid var(--line)}
.result-metrics{gap:18px;border:0;margin:28px 0}
.result-metrics>div{border:1px solid #dbe4d2!important;border-radius:16px;padding:28px;background:#eef4e6;box-shadow:var(--soft-shadow)}
.result-metrics>div:first-child{background:#173f36;border-color:#173f36!important;color:#f6faef}
.result-metrics strong{font-size:clamp(33px,3.8vw,48px);font-variant-numeric:tabular-nums;margin-bottom:14px}
.result-metrics span{font-size:13px;line-height:1.7;display:block}
.testing-details{border:1px solid #dce4d6;border-radius:12px;background:#f7f9f3;overflow:hidden}
.testing-details summary{display:flex;align-items:center;justify-content:space-between;gap:20px;list-style:none;cursor:pointer;padding:20px 24px;font-size:13px;font-weight:500;color:var(--ink)}
.testing-details summary::-webkit-details-marker{display:none}.testing-details summary>span{font-size:23px;font-weight:400;line-height:1;transition:transform .2s}.testing-details[open] summary>span{transform:rotate(45deg)}
.testing-details summary:hover{background:#edf3e6}.testing-details[open] summary{border-bottom:1px solid var(--line)}
.testing-details-content{padding:24px}.testing-details-content>.evidence-note{margin-bottom:0}.testing-details-content .tolerance-note{margin-bottom:0}
.result-table-scroll{border-radius:8px;background:#fff}.result-table caption{font-size:12px;padding:16px 18px}.result-table th,.result-table td{padding:16px 14px}
.result-table thead{background:#e6eddd}.result-table tbody tr:last-child{background:#f0f5e9}
.report-link{margin-top:24px;font-size:12px}.evidence-note{font-size:12px;line-height:1.9}
.product-film{background:#eaf0e2;padding:72px 0}.film-player{overflow:hidden;border-radius:18px;border:0;box-shadow:0 18px 40px #173f3614}
.caption-controls button{border-radius:20px;padding:9px 17px;min-height:40px}.film-note{font-size:11px;line-height:1.8}
.product-routine{gap:60px;grid-template-columns:1fr 1.5fr}.product-routine h2{font-size:34px}
.product-routine li{padding:22px;background:#f2f5ed;border:1px solid #e0e7d8;border-radius:14px;margin-bottom:12px;gap:16px}
.routine-number{display:grid;place-items:center;align-self:start;width:40px;height:40px;border-radius:50%;background:#e1ead6;color:#5d784e;font-size:22px}.product-routine h3{font-size:18px}
.product-credential-section{padding:72px 0;background:#eff3e9}
.product-certificate{border-radius:18px;padding:26px;gap:24px;transition:transform .2s,box-shadow .2s;background:#fafbf7;align-items:center}
.product-certificate:hover{transform:translateY(-3px);box-shadow:0 12px 30px #173f3610}
.product-certificate-image{width:35%;height:220px;background:#eef2e8;padding:10px;border-radius:8px}.product-certificate strong{font-size:18px}.certificate-summary{font-size:12px}
.product-certificate small{display:inline-block;padding-bottom:3px;border-bottom:1px solid #a4b591;color:#355c44}
.comparison-pair{border:1px solid #dce5d4;border-radius:16px;background:#f1f5eb;padding:18px}.comparison-pair img{border-radius:8px}.comparison-pair figcaption{font-size:12px}
.product-page .related .product-visual{border-radius:16px;overflow:hidden}
@media(max-width:1050px){.product-intro{gap:35px}.product-profile,.product-routine{gap:32px}.product-page .section-heading{gap:30px}.product-feature-grid article{padding:24px}.product-certificate{padding:22px;gap:18px}.product-certificate-image{height:180px}}
@media(max-width:750px){.product-page .section{padding-top:54px;padding-bottom:54px}.product-page .section-heading{gap:18px;flex-direction:column;align-items:flex-start}.product-page .section-heading>p{flex:auto;max-width:100%;font-size:13px}.product-intro{gap:30px;padding-bottom:36px}.product-profile,.product-routine{grid-template-columns:1fr}.product-feature-grid{grid-template-columns:1fr;gap:14px}.product-feature-grid article{padding:24px}.product-feature-grid h3{margin:12px 0}.result-metrics{gap:12px}.result-metrics>div{padding:22px 18px}.product-certificate-image{height:190px}.product-film,.product-credential-section{padding:54px 0}.product-routine h2{font-size:30px}}
@media(max-width:600px){.product-page .breadcrumbs{font-size:10px;padding-top:19px;padding-bottom:19px;gap:8px}.product-stage{border-radius:18px}.product-stage img{padding:32px}.product-intro-copy h1{font-size:36px;margin:13px 0}.product-subtitle{font-size:17px}.product-intro-copy .tags span{font-size:10px;padding:5px 10px}.product-overview p{font-size:13px}.product-profile h2{font-size:28px}.product-section-nav{border-radius:0;max-width:none!important;width:100%;padding:8px 18px;border-left:0;border-right:0;gap:4px}.product-section-nav a{padding:9px 13px;font-size:11px}.product-page section[id]{scroll-margin-top:55px}.product-profile p:not(.eyebrow){font-size:13px}.spec-panel{padding:24px;border-radius:14px}.formula-grid article{padding:24px}.result-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.result-metrics>div:first-child{grid-column:1/-1;display:flex;align-items:center;gap:20px}.result-metrics>div:first-child strong{margin:0;flex-shrink:0}.result-metrics strong{font-size:32px}.result-metrics span{font-size:11px}.testing-details summary{padding:18px;font-size:12px}.testing-details-content{padding:16px}.result-table{font-size:11px}.evidence-note{font-size:11px}.film-player{border-radius:12px}.product-certificate{padding:20px;gap:16px}.product-certificate-image{width:33%;height:155px;padding:6px}.product-certificate strong{font-size:16px}.certificate-summary{font-size:11px}.product-certificate small{font-size:10px}.product-routine li{padding:19px;grid-template-columns:38px 1fr}.product-routine h3{font-size:17px}.product-credential-note{font-size:10px;line-height:1.9}.caption-controls>span{font-size:11px}.film-note{font-size:10px}}
@media(prefers-reduced-motion:reduce){.product-stage:hover img,.product-certificate:hover{transform:none}}