body[data-page=learning] .hero-copy h1{font-size:clamp(44px,5.1vw,68px);line-height:1.35}
body[data-page=learning] .hero-intro{max-width:590px}
.lx-hero-board{padding:29px;background:linear-gradient(145deg,#fff,#faf6ff);border:1px solid #e1d5ef;border-radius:25px;box-shadow:6px 8px 0 #e6dcf35c,0 25px 48px -32px #61439850;transform:rotate(-2deg)}
.lx-hero-top{display:flex;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px solid #e9def3;color:#5b3d87;font-size:13px;font-weight:700}
.lx-hero-top>.icon{width:54px;height:54px}
.lx-hero-question{padding:25px 0 21px}
.lx-hero-question>small{display:block;font-size:13px;color:#876e9c;margin-bottom:9px}
.lx-hero-question>strong{display:block;font-size:27px;line-height:1.65;color:#4e328a;font-weight:900}
.lx-hero-question>p{font-size:13px;color:#837092;margin-top:10px}
.lx-hero-row{display:flex;gap:12px;align-items:center;padding:13px 15px;border:1px solid #e8def4;background:#f4effb;border-radius:12px;margin-top:9px;font-size:13px;font-weight:700;color:#634897}
.lx-hero-row:nth-child(4){background:#edf9f3;border-color:#d5eadf;color:#497e6a}
.lx-hero-row i{width:6px;height:6px;background:#64b8a1;border-radius:50%}
.lx-hero-foot{margin-top:21px;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:10px;color:#897397}
.lx-hero-foot a{color:#6742ad;font-size:12px;min-height:44px;display:flex;align-items:center;gap:12px;font-weight:700}
.lx-section{background:linear-gradient(150deg,#f4effb,#f5f1fa 60%,#f0faf5);border-block:1px solid #e9e1f2}
.lx-section .section-heading.center>p{max-width:730px}
.lx-courses{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin-bottom:26px}
.lx-courses .lx-course{display:flex;align-items:center;gap:15px;text-align:start;padding:17px 21px;border:1px solid #ded3ed;background:#fff;border-radius:18px;box-shadow:none;color:#453054;min-width:0}
.lx-course>.icon{width:49px;height:49px;flex-shrink:0}
.lx-course>span:not(.lx-course-mark){display:flex;flex-direction:column;gap:5px}
.lx-course strong{font-size:18px;color:inherit}
.lx-course small{font-size:12px;line-height:1.7;color:#7b678d}
.lx-course .lx-course-mark{font-size:23px;color:#a58bbc;margin-inline-start:auto}
.lx-courses .lx-course[aria-selected=true]{border-color:#9572cd;background:#eee7fa;box-shadow:inset 0 -3px #7351bb;color:#59399a}
.lx-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px;align-items:start}
.lx-question-card{background:#fff;border:1px solid #dfd3ed;border-radius:24px;padding:32px;min-width:0;box-shadow:0 20px 40px -35px #4a2c6d50}
.lx-question-top{display:flex;align-items:center;justify-content:space-between;gap:15px;color:#80678f;font-size:11px;line-height:1.85;padding-bottom:23px;border-bottom:1px solid #ece4f4}
.lx-question-top i{font-style:normal;padding-inline:5px}
.lx-level{background:#eaf7f0;color:#3e7b65;border-radius:30px;padding:6px 12px;white-space:nowrap}
.lx-question-heading{padding-top:25px}
.lx-question-number{font-size:12px;font-weight:700;color:#8d74a6;display:block;margin-bottom:10px}
.lx-question-heading h3{font-size:25px;line-height:1.8;color:#392443;margin:0;outline:none}
.lx-select-label{font-size:12px;font-weight:700;color:#826c93;margin:27px 0 12px}
.lx-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.lx-options-text{grid-template-columns:minmax(0,1fr)}
.lx-options .lx-option{display:flex;align-items:center;gap:13px;min-height:63px;text-align:start;border:1px solid #e3d7f0;border-radius:13px;background:#fcfafe;color:#493157;padding:13px 16px;box-shadow:none;font-size:16px;line-height:1.85;font-weight:400;opacity:1;min-width:0}
.lx-option-letter{display:grid;place-items:center;width:28px;height:28px;background:#f0e9f8;border:1px solid #e0d3ef;border-radius:9px;font-size:12px;color:#9274ab;flex-shrink:0}
.lx-options .lx-option.is-selected{border-color:#906bc8;background:#f0e8fa;color:#51318d;box-shadow:inset 0 0 0 1px #a78acc}
.lx-options .lx-option.is-correct{background:#edf9f2;border-color:#8dc8b1;box-shadow:none;color:#326d59}
.lx-options .lx-option.is-wrong{background:#fcf7eb;border-color:#d8bd7e;box-shadow:none;color:#876522}
.lx-option.is-correct .lx-option-letter{color:#3a8068;background:#dbf0e5;border-color:#badecc}
.lx-option.is-wrong .lx-option-letter{background:#f5e9cc;border-color:#e4d0a3;color:#8c6b33}
.lx-option-result{margin-inline-start:auto;font-size:18px;font-weight:700;flex-shrink:0}
.lx-option:disabled{cursor:default}
.lx-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:24px}
.lx-actions .button,.lx-next{min-height:50px;font-size:14px;padding:13px 23px}
.lx-actions .button:disabled{background:#e9e2f3;color:#9481a3;border-color:#e9e2f3;cursor:not-allowed;box-shadow:none;opacity:1;transform:none}
.lx-hint-button{display:flex;align-items:center;gap:10px;min-height:44px;font-size:13px;background:transparent;border:0;color:#776091;padding:7px;box-shadow:none}
.lx-hint-button>span{font-size:21px;color:#5ea990}
.lx-hint{padding:17px 20px;margin-top:17px;border:1px solid #deceef;border-radius:13px;background:#f6f0fc;color:#6a4d86}
.lx-hint strong{font-size:13px}.lx-hint p{font-size:14px;line-height:1.95;margin:6px 0 0}
.lx-feedback{margin-top:27px;padding-top:25px;border-top:1px solid #e5dcee;outline:none}
.lx-feedback-title{display:flex;align-items:center;gap:10px;margin-bottom:11px;color:#8a692f}
.lx-feedback-title>span{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;background:#f8efd9;font-size:19px;flex-shrink:0}
.lx-feedback-title h4{font-size:19px;line-height:1.7;margin:0;color:inherit}
.lx-feedback-correct .lx-feedback-title{color:#34765c}.lx-feedback-correct .lx-feedback-title>span{background:#e3f4eb}
.lx-feedback>p{color:#736080;font-size:15px;line-height:2;margin:0 0 15px}
.lx-correct-answer{padding:12px 16px;background:#edf8f2;color:#3d755f;font-size:14px;line-height:1.95;border-radius:10px}
.lx-explanation-title{color:#553779;font-size:14px;margin:25px 0 15px}
.lx-explanation{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:17px}
.lx-explanation li{display:flex;align-items:flex-start;gap:12px}
.lx-step-number{display:grid;place-items:center;min-width:27px;height:27px;border-radius:8px;background:#efe7f8;color:#7c57ac;font-size:11px;margin-top:3px}
.lx-explanation li>div{min-width:0;flex:1}
.lx-explanation strong{font-size:14px;color:#584066}
.lx-explanation p{font-size:14px;color:#7d6789;line-height:1.95;margin:4px 0 0}
.lx-formula{display:inline-block;font-family:Arial,sans-serif;font-size:16px;line-height:1.7;background:#f5f1fa;border:1px solid #e9dff3;border-radius:8px;padding:6px 12px;margin-top:8px;color:#66469a;max-width:100%;overflow-wrap:anywhere}
.lx-price-flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:24px 0}
.lx-price-flow>div{border:1px solid #e5d9f2;border-radius:12px;padding:14px 10px;background:#f9f5fd;text-align:center;position:relative}
.lx-price-flow>div:last-child{background:#eaf8f1;border-color:#cce7d8}
.lx-price-flow small{font-size:10px;display:block;color:#836a97;line-height:1.8;margin-bottom:8px}
.lx-price-flow strong{font-size:19px;color:#664196}.lx-price-flow>div:last-child strong{color:#39745d}
.lx-price-flow>div:not(:last-child):after{content:'←';position:absolute;inset-inline-end:-10px;inset-block-start:50%;transform:translateY(-50%);color:#af98c4;font-size:13px;background:white;border-radius:50%;z-index:1}
.lx-next{margin-top:23px;max-width:100%}
.lx-passage{padding:23px;margin-top:23px;border-radius:15px;background:#f6f2fc;border-inline-start:3px solid #ae92d0}
.lx-passage p{font-size:16px;line-height:2.2;color:#594765;margin:0}
.lx-passage mark{background:#d5f1e3;color:#36634f;border-radius:3px;padding-inline:3px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.lx-passage>small{display:block;font-size:11px;margin-top:13px;color:#4e826b}
.lx-physics{margin-top:22px;border:1px solid #ece3f4;border-radius:15px;background:linear-gradient(#fcfafe,#f4effa);padding:8px 15px;text-align:center}
.lx-physics svg{display:block;width:100%;max-width:450px;height:140px;margin:auto;font-family:inherit;font-size:14px}
.lx-coach{position:sticky;top:122px;background:#fff;border:1px solid #dcd0eb;border-radius:22px;padding:25px;overflow:hidden}
.lx-coach-top{display:flex;align-items:center;gap:9px;color:#6e4b9b;font-size:13px;font-weight:700;margin-bottom:23px}
.lx-coach-top>span{font-size:24px;color:#599b89}
.lx-coach-message>strong{font-size:22px;line-height:1.65;color:#4b306b;display:block;margin-bottom:10px}
.lx-coach-message>p{font-size:14px;line-height:2;color:#7d698d;margin:0}
.lx-concept{background:#f0faf4;border:1px solid #d6eadf;padding:16px;border-radius:12px;margin-block:22px}
.lx-concept small{font-size:10px;color:#658f7c;display:block;margin-bottom:8px}
.lx-concept strong{font-size:14px;line-height:1.8;color:#3f705a}
.lx-progress>div:first-child{display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:11px;color:#8a7299}
.lx-progress strong{color:#73519e;font-weight:700}
.lx-progress-track{margin-top:12px;height:6px;background:#eee6f7;border-radius:10px;overflow:hidden}
.lx-progress-track i{display:block;height:100%;border-radius:10px;background:#79c9aa;transition:width .25s}
.lx-record{margin-top:24px;border-top:1px solid #ece3f4;padding-top:20px}
.lx-record>strong{font-size:12px;color:#674784}.lx-record>div{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:15px;font-size:12px;color:#76617f}
.lx-record small{display:block;font-size:10px;margin-top:3px;color:#9a81aa}
.lx-record b{font-size:10px;border-radius:20px;padding:6px 9px;white-space:nowrap}.lx-record-correct{background:#e9f7ef;color:#478165}.lx-record-review{background:#fcf5e6;color:#987239}
.lx-reset{display:flex;align-items:center;justify-content:center;min-height:44px;background:transparent;border:1px solid #e5d9f0;border-radius:10px;width:100%;color:#816194;font-size:11px;margin-top:20px;padding:8px;box-shadow:none}
.lx-disclosure{font-size:11px;color:#8b7996;text-align:center;line-height:1.9;max-width:900px;margin:25px auto 0}
.lx-complete{text-align:center;padding-block:34px}.lx-complete-icon>.icon{width:90px;height:90px}.lx-complete>.pill{margin-top:15px;display:inline-block}.lx-complete h3{font-size:31px;line-height:1.55;color:#4b3168;margin:19px 0 12px}.lx-complete>p{font-size:15px;line-height:1.95;color:#81698c;max-width:590px;margin:0 auto}
.lx-summary-count{display:flex;flex-direction:column;gap:7px;margin:28px auto}.lx-summary-count strong{font-size:46px;line-height:1.3;color:#6646a2}.lx-summary-count small{font-size:19px;color:#aa92c0}.lx-summary-count>span{font-size:12px;color:#8b739d}
.lx-summary-message{padding:18px;background:#eff9f3;border:1px solid #d6e9df;border-radius:13px;font-size:15px;line-height:1.95;color:#4d7e68;margin-bottom:25px}
.lx-review{text-align:start;border-block:1px solid #e7dbf1;margin-bottom:25px;padding-block:13px;color:#826693}.lx-review summary{cursor:pointer;font-size:13px;min-height:34px;line-height:2}.lx-review article{padding-block:15px;border-top:1px solid #eee5f7}.lx-review h4{font-size:16px;line-height:1.8;color:#5e4178}.lx-review p,.lx-review li{font-size:13px;line-height:1.95}.lx-review ol{padding-inline-start:20px}.lx-review bdi{font-family:Arial,sans-serif;color:#694991}
.lx-complete>.lx-other{font-size:11px;margin-top:18px}
.lx-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.lx-course:focus-visible,.lx-option:focus-visible,.lx-hint-button:focus-visible,.lx-reset:focus-visible{outline:3px solid #ab8ed3;outline-offset:4px}
@media(max-width:1050px){.lx-layout{grid-template-columns:minmax(0,1fr) 245px;gap:18px}.lx-question-card{padding:26px}.lx-coach{padding:20px}.lx-question-heading h3{font-size:23px}.lx-coach-message>strong{font-size:20px}.lx-hero-question>strong{font-size:23px}.lx-course>.icon{width:42px;height:42px}.lx-courses .lx-course{padding:15px;gap:11px}.lx-course strong{font-size:16px}.lx-course small{font-size:10px}}
@media(max-width:800px){.lx-layout{grid-template-columns:minmax(0,1fr)}.lx-coach{position:static;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 24px}.lx-coach-top{grid-column:1/-1;margin-bottom:15px}.lx-coach-message{grid-row:2/5}.lx-concept{margin-top:0}.lx-record{margin-top:20px}.lx-reset{grid-column:2}.lx-question-heading h3{font-size:24px}.lx-hero-board{padding:20px}.lx-hero-question>strong{font-size:21px}.lx-hero-row{font-size:11px;padding:10px}.lx-hero-top{font-size:11px}.lx-hero-foot{flex-wrap:wrap}}
@media(max-width:600px){
 body[data-page=learning] .hero-copy h1{font-size:46px;line-height:1.35}.lx-hero-board{padding:22px;border-radius:21px}.lx-hero-question>strong{font-size:25px}.lx-hero-row{font-size:13px;padding:12px}.lx-hero-top{font-size:12px}.lx-hero-foot{font-size:10px}.lx-hero-foot a{font-size:12px}
 .lx-courses{gap:7px;margin-bottom:18px}.lx-courses .lx-course{flex-direction:column;gap:8px;justify-content:center;text-align:center;padding:13px 5px;border-radius:13px}.lx-course>.icon{width:36px;height:36px}.lx-course strong{font-size:13px}.lx-course small{font-size:9px;line-height:1.8;min-height:32px}.lx-course .lx-course-mark{display:none}.lx-course>span:not(.lx-course-mark){gap:4px}
 .lx-question-card{padding:22px 19px;border-radius:20px}.lx-question-top{font-size:10px;padding-bottom:17px;gap:10px;align-items:flex-start}.lx-level{font-size:9px;padding:5px 9px}.lx-question-heading{padding-top:20px}.lx-question-number{font-size:11px}.lx-question-heading h3{font-size:22px;line-height:1.85}.lx-select-label{margin-top:21px;font-size:12px}.lx-options{gap:9px}.lx-options .lx-option{padding:11px;gap:9px;font-size:15px;min-height:62px;border-radius:12px}.lx-option-letter{width:24px;height:24px;font-size:11px;border-radius:7px}.lx-option-result{font-size:15px}
 .lx-actions{margin-top:19px;gap:10px;flex-direction:column;align-items:stretch}.lx-actions .button{width:100%;font-size:15px;min-height:52px}.lx-hint-button{justify-content:center}.lx-hint{padding:15px}.lx-hint p{font-size:14px}
 .lx-passage{padding:17px;margin-top:18px}.lx-passage p{font-size:15px;line-height:2.1}.lx-physics{padding-inline:0;margin-top:19px}.lx-physics svg{height:118px;font-size:15px}
 .lx-feedback{margin-top:20px;padding-top:20px}.lx-feedback-title h4{font-size:18px}.lx-feedback>p{font-size:14px}.lx-correct-answer{font-size:13px;padding:11px 13px}.lx-explanation-title{margin-top:21px}.lx-explanation{gap:17px}.lx-explanation li{gap:9px}.lx-step-number{min-width:24px;height:24px;font-size:10px}.lx-explanation strong{font-size:13px}.lx-explanation p{font-size:13px}.lx-formula{font-size:14px;padding:6px 9px}.lx-price-flow{gap:7px;margin-top:20px}.lx-price-flow>div{padding:12px 4px}.lx-price-flow small{font-size:9px;min-height:32px;margin-bottom:5px}.lx-price-flow strong{font-size:16px}.lx-next{width:100%;font-size:13px;padding:13px 14px;gap:12px;min-height:51px}
 .lx-coach{display:block;padding:22px;border-radius:20px}.lx-coach-top{margin-bottom:15px}.lx-coach-message>strong{font-size:22px}.lx-coach-message>p{font-size:14px}.lx-concept{margin-block:19px}.lx-record b{font-size:11px}.lx-disclosure{font-size:10px;margin-top:21px;text-align:start}
 .lx-complete h3{font-size:27px}.lx-complete>p{font-size:14px}.lx-summary-message{font-size:14px;padding:16px}.lx-complete .button{width:100%;min-height:50px}
}
@media(max-width:360px){body[data-page=learning] .hero-copy h1{font-size:40px}.lx-hero-question>strong{font-size:23px}.lx-question-card{padding-inline:16px}.lx-question-heading h3{font-size:20px}.lx-options .lx-option{font-size:14px;padding:10px 9px;gap:7px}.lx-option-letter{width:21px;height:21px}.lx-course strong{font-size:12px}.lx-course small{font-size:8px}.lx-price-flow strong{font-size:15px}.lx-question-top{flex-wrap:wrap;gap:9px}.lx-formula{font-size:13px}}
@media(prefers-reduced-motion:reduce){.lx-progress-track i{transition:none}}