/* Shared, progressively enhanced research reading room — EN / RU / VI. */
.product-page .product-research-summary.product-learning{display:block;box-sizing:border-box;max-width:1304px;margin:clamp(44px,7vw,92px) auto;padding:0 28px;border:0;background:transparent;overflow:visible;color:#17221d}
.product-learning [hidden]{display:none!important}
.product-learning .learn-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:26px}
.product-learning .learn-kicker{display:block;margin:0 0 14px;color:#456656;font-size:.69rem;font-weight:800;letter-spacing:.15em;text-transform:uppercase;line-height:1.45}
.product-learning .learn-heading h2{max-width:100%;margin:0;color:#14291d;font-size:clamp(2rem,4vw,3.65rem);font-weight:790;letter-spacing:-.055em;line-height:1.04;overflow-wrap:anywhere}
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.product-learning .learn-heading p{max-width:66ch;margin:16px 0 0;color:#627169;font-size:.95rem;line-height:1.6}
.product-learning .learn-buy-link{display:inline-flex;align-items:center;justify-content:center;gap:15px;flex:none;min-height:46px;padding:10px 18px;border:1px solid #bccdc1;border-radius:999px;color:#24553c;font-size:.8rem;font-weight:740;text-decoration:none}
.product-learning .learn-buy-link:hover{background:#edf4ee}
.product-learning .learn-workspace{overflow:hidden;border:1px solid #d9e3dc;border-radius:28px;background:#fff;box-shadow:0 14px 45px #21483006}
.product-learning .learn-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;padding:9px;border-bottom:1px solid #e1e8e3;background:#f3f6f1}
.product-learning .learn-tabs button{min-width:0;min-height:52px;padding:12px 10px;border:1px solid transparent;border-radius:18px;background:transparent;color:#526458;font:inherit;font-size:.85rem;font-weight:740;line-height:1.2;cursor:pointer;transition:background .15s ease,color .15s ease}
.product-learning .learn-tabs button:hover{background:#e7eee7;color:#163c29}
.product-learning .learn-tabs button[aria-selected="true"]{border-color:#163e2a;background:#173f2b;color:#fff;box-shadow:0 3px 8px #173f2b14}
.product-learning :is(button,a,select,summary):focus-visible{outline:3px solid #74a888;outline-offset:3px}
.product-learning .learn-panel{padding:clamp(25px,3.5vw,48px)}
.product-learning .learn-panel[role="tabpanel"]:focus-visible{outline:3px solid #74a888;outline-offset:-4px}
.product-learning .learn-panel+ .learn-panel{border-top:1px solid #dfe6df}
.product-learning[data-learn-ready] .learn-panel{border-top:0}
.product-learning h3{max-width:27ch;margin:0 0 22px;color:#183b29;font-size:clamp(1.55rem,2.6vw,2.45rem);font-weight:740;line-height:1.13;letter-spacing:-.04em}
.product-learning .learn-overview{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(260px,.82fr);gap:clamp(26px,5vw,76px);align-items:start}
.product-learning .learn-story .product-research-paragraph{margin:0;color:#4f6155;font-size:1rem;line-height:1.9;text-wrap:pretty}
.product-learning .learn-identity{display:block;padding:26px;border:1px solid #dce7db;border-radius:22px;background:linear-gradient(135deg,#edf5e9,#f7f9f2)}
.product-learning .learn-material-name{display:block;margin:0;color:#234b31;font-size:1.45rem;font-weight:760;letter-spacing:-.04em;line-height:1.15;overflow-wrap:anywhere}
.product-learning .learn-identity>p{margin:14px 0 20px;color:#526752;font-size:.86rem;line-height:1.65}
.product-learning dl{margin:0}
.product-learning dl>div{padding:13px 0;border-top:1px solid #ccdacc}
.product-learning dt{margin-bottom:5px;color:#64765f;font-size:.68rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase}
.product-learning dd{margin:0;color:#203e2b;font-size:.91rem;font-weight:690;line-height:1.5;overflow-wrap:anywhere}
.product-learning .learn-next{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;min-height:45px;margin-top:12px;padding:11px 16px;border:0;border-radius:999px;background:#fff;color:#234b31;font:inherit;font-size:.8rem;font-weight:750;cursor:pointer}
.product-learning .learn-topics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:28px 0 32px}
.product-learning .learn-topics article{min-width:0;min-height:166px;padding:24px;border:1px solid #dae7de;border-radius:20px;background:#ecf4ec}
.product-learning .learn-topics article:nth-child(2){border-color:#e7dfd0;background:#f7f0e3}
.product-learning .learn-topics article:nth-child(3){border-color:#e0dfee;background:#f1eff9}
.product-learning .learn-topics article>span{display:block;margin-bottom:28px;color:#647366;font-size:.7rem;font-weight:740;letter-spacing:.1em}
.product-learning .learn-topics h4{margin:0;color:#243a2c;font-size:1.08rem;font-weight:690;line-height:1.5;letter-spacing:-.02em}
.product-learning .learn-glossary{display:grid;grid-template-columns:minmax(170px,.65fr) minmax(0,1.35fr);gap:30px;padding:28px 0;border-top:1px solid #e3e8e2}
.product-learning .learn-glossary h4,.product-learning .learn-sources h4{margin:0 0 9px;color:#213f2c;font-size:1rem;font-weight:760}
.product-learning .learn-glossary>div>p{max-width:25ch;margin:0;color:#6b786c;font-size:.83rem;line-height:1.6}
.product-learning :is(.learn-glossary,.learn-faq) details{border-bottom:1px solid #dfe6df}
.product-learning :is(.learn-glossary,.learn-faq) summary{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:56px;padding:14px 2px;color:#254c34;font-size:.95rem;font-weight:700;line-height:1.45;cursor:pointer;list-style:none}
.product-learning summary::-webkit-details-marker{display:none}
.product-learning summary>span{flex:none;width:25px;text-align:center;color:#60775f;font-size:22px;font-weight:400;transition:transform .15s ease}
.product-learning details[open]>summary>span{transform:rotate(45deg)}
.product-learning :is(.learn-glossary,.learn-faq) details>p{margin:0;padding:0 30px 22px 2px;color:#58695b;font-size:.92rem;line-height:1.8;text-wrap:pretty}
.product-learning .learn-sources{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;padding-top:24px;border-top:1px solid #e3e8e2}
.product-learning .learn-sources h4{flex-basis:100%;font-size:.8rem}
.product-learning .learn-sources a{display:inline-flex;align-items:center;justify-content:space-between;gap:12px;min-height:42px;padding:10px 15px;border:1px solid #dce5dc;border-radius:999px;color:#356144;font-size:.76rem;font-weight:650;text-decoration:none;line-height:1.4;overflow-wrap:anywhere}
.product-learning .learn-sources a:hover{border-color:#779d80;background:#f0f6ef}
.product-learning .learn-sources>p{margin:0;color:#69776b;font-size:.86rem;line-height:1.6}
.product-learning .learn-compare-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;margin-bottom:28px}
.product-learning .learn-compare-heading p{max-width:55ch;margin:0;color:#617266;font-size:.9rem;line-height:1.7}
.product-learning .learn-select{display:grid;flex:none;gap:8px;min-width:220px;max-width:290px}
.product-learning .learn-select>span{color:#5f7165;font-size:.73rem;font-weight:730}
.product-learning .learn-select select{width:100%;min-width:0;min-height:48px;padding:10px 35px 10px 13px;border:1px solid #c8d6cb;border-radius:12px;background:#fff;color:#284c34;font:inherit;font-size:.9rem;text-overflow:ellipsis}
.product-learning .learn-compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:stretch}
.product-learning .learn-compare-card{display:flex;flex-direction:column;min-width:0;padding:clamp(22px,3vw,34px);border:1px solid #e0e2d8;border-radius:21px;background:#f9f7f0}
.product-learning .learn-compare-card.is-current{border-color:#cddfce;background:#eef5ec}
.product-learning .learn-compare-card>small{margin-bottom:24px;color:#6c7968;font-size:.65rem;font-weight:780;letter-spacing:.1em;text-transform:uppercase}
.product-learning .learn-compare-card h4{margin:0 0 14px;color:#24452d;font-size:clamp(1.35rem,2.2vw,2rem);letter-spacing:-.04em;line-height:1.15;overflow-wrap:anywhere}
.product-learning .learn-compare-card>strong{font-size:.92rem;font-weight:750;line-height:1.55}
.product-learning .learn-compare-card>p{margin:14px 0 22px;color:#5f705e;font-size:.88rem;line-height:1.8}
.product-learning .learn-compare-card>div{display:grid;gap:7px;margin-top:auto;padding:15px 0;border-top:1px solid #cedbc9}
.product-learning .learn-compare-card>div>span{color:#6b7865;font-size:.65rem;font-weight:730;letter-spacing:.07em;text-transform:uppercase}
.product-learning .learn-compare-card>div>b{font-size:.85rem;line-height:1.5}
.product-learning .learn-compare-card>a{align-self:flex-start;margin-top:12px;color:#234e34;font-size:.85rem;font-weight:750;text-decoration:underline;text-underline-offset:4px}
.product-learning .learn-faq{max-width:850px;margin-top:25px}
.product-learning .learn-faq summary{min-height:66px;font-size:1rem}
.product-learning .learn-boundary{max-width:90ch;margin:17px 6px 0;color:#5f7164;font-size:.78rem;line-height:1.6}
@media(max-width:820px){
.product-page .product-research-summary.product-learning{margin:48px auto;padding:0 18px}
.product-learning .learn-heading{display:block;margin-bottom:22px}
.product-learning .learn-heading h2{font-size:2.25rem}
.product-learning .learn-heading h2>span{font-size:1.35rem;line-height:1.25}
.product-learning .learn-heading p{font-size:.9rem;line-height:1.7}
.product-learning .learn-buy-link{margin-top:18px}
.product-learning .learn-workspace{border-radius:23px}
.product-learning .learn-tabs{gap:4px;padding:7px;grid-template-columns:repeat(2,minmax(0,1fr))}
.product-learning .learn-tabs button{min-height:46px;padding:12px 7px;border-radius:14px;font-size:.77rem}
.product-learning .learn-panel{padding:25px 20px}
.product-learning .learn-overview{grid-template-columns:minmax(0,1fr);gap:25px}
.product-learning h3{max-width:100%;font-size:1.7rem;line-height:1.2}
.product-learning .learn-story .product-research-paragraph{font-size:.96rem;line-height:1.85}
.product-learning .learn-identity{padding:23px}
.product-learning .learn-topics{grid-template-columns:1fr;gap:11px;margin:24px 0}
.product-learning .learn-topics article{display:flex;gap:18px;align-items:flex-start;min-height:0;padding:23px 20px}
.product-learning .learn-topics article>span{flex:none;margin-top:5px;margin-bottom:0}
.product-learning .learn-topics h4{font-size:1rem}
.product-learning .learn-glossary{grid-template-columns:1fr;gap:12px;padding:24px 0}
.product-learning .learn-glossary>div>p{max-width:none}
.product-learning .learn-compare-heading{display:block}
.product-learning .learn-select{max-width:none;min-width:0;margin-top:21px}
.product-learning .learn-select select{font-size:16px}
.product-learning .learn-compare-grid{grid-template-columns:1fr}
.product-learning .learn-compare-card{padding:24px}
.product-learning .learn-compare-card>small{margin-bottom:15px}
.product-learning .learn-compare-card h4{font-size:1.6rem}
.product-learning .learn-faq summary{font-size:.94rem}
.product-learning .learn-sources a{max-width:100%;font-size:.73rem}
}
@media(prefers-reduced-motion:reduce){.product-learning *{transition:none!important;scroll-behavior:auto!important}}
.product-learning .learn-compare-product{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:16px}
.product-learning .learn-compare-product h4{min-width:0;margin:0;flex:1}
.product-learning .learn-packshot{display:grid;flex:none;place-items:center;width:74px;height:120px;overflow:hidden}
.product-learning .learn-packshot img{display:block;width:auto;height:calc(106px * var(--vp-vial-height-factor,1));max-width:none;object-fit:contain;transform:translate(var(--vp-vial-x-shift,0%),var(--vp-vial-y-shift,0%))}
.product-learning .learn-composition{margin:26px 0 0;padding:22px;border:1px solid #dde7dc;border-radius:18px;background:#f8faf5}
.product-learning .learn-composition figcaption{margin-bottom:16px;color:#546c55;font-size:.73rem;font-weight:750;letter-spacing:.08em;text-transform:uppercase}
.product-learning .learn-mass-bar{display:flex;gap:4px;height:13px;overflow:hidden;border-radius:999px}
.product-learning .learn-mass-bar span{background:#396747}
.product-learning .learn-mass-bar span:nth-child(2){background:#b2c791}
.product-learning .learn-mass-bar span:nth-child(3){background:#b8afcb}
.product-learning .learn-composition ul{display:grid;gap:9px;margin:18px 0 0;padding:0;list-style:none}
.product-learning .learn-composition li{display:flex;justify-content:space-between;gap:20px;color:#405e43;font-size:.86rem;line-height:1.5}
.product-learning .learn-composition a{color:inherit;text-decoration:underline;text-underline-offset:3px}
.product-learning .learn-composition b{flex:none;font-variant-numeric:tabular-nums}
@media(max-width:820px){.product-learning .learn-packshot{width:62px;height:105px}.product-learning .learn-packshot img{height:calc(92px * var(--vp-vial-height-factor,1))}.product-learning .learn-composition{padding:18px}}