:root{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:#263d36;background:#f7f8f4;font-synthesis:none;font-weight:400;font-size:14px;--green: #244e42;--deep: #173e34;--muted: #839087;--border: #e5e9e1;--cream: #f0f0db;--gold: #cfb67a}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}button:disabled{cursor:not-allowed;opacity:.48}button:focus-visible,a:focus-visible{outline:3px solid #8bbbad;outline-offset:4px}button{border:0;background:none}input,textarea,select{border:1px solid #dce3d9;border-radius:8px;padding:12px;background:#fff;outline:none;min-width:0;color:#263d36}input:focus,textarea:focus,select:focus{border-color:#729e8b;box-shadow:0 0 0 3px #dfece5}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3,h4{font-weight:600}p{line-height:1.8}svg{flex-shrink:0}small{font-size:11px}.app-shell{display:flex;min-height:100vh}.sidebar{width:226px;padding:32px 20px 20px;background:#f0f3eb;border-right:1px solid #e0e6da;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;z-index:30;overflow-y:auto;overscroll-behavior:contain}.sidebar>*{flex-shrink:0}@media(max-height:900px){.sidebar .small-note{display:none}.sidebar .sidebar-bottom{padding-top:16px}}.brand{display:flex;gap:11px;align-items:center;padding:0 8px 32px}.brand-mark{display:grid;place-items:center;width:42px;height:44px;color:#f1f2dd;background:#244e42;border-radius:12px 12px 12px 2px}.brand strong{font-family:Songti SC,STSong,serif;font-size:25px;letter-spacing:1px;color:#254a3b}.brand strong span{font-size:16px;font-family:inherit;margin-left:5px}.brand small{display:block;font-size:7.6px;letter-spacing:1.4px;margin-top:5px;color:#6f8270}.sidebar-label{font-size:10px;color:#879080;padding:9px 14px 13px;letter-spacing:1px}.sidebar nav{display:flex;flex-direction:column;gap:6px}.sidebar nav a{padding:13px 14px;display:flex;gap:12px;align-items:center;font-size:13px;color:#748073;border-radius:7px;transition:.18s}.sidebar nav a:hover{background:#e5ebdf;color:#244e42}.sidebar nav a.active{color:#f8f9ee;background:#284f42;box-shadow:0 4px 9px #284f4210}.sidebar nav a small{margin-left:auto;opacity:.6;font-size:10px}.nav-divider{height:1px;background:#dce3d5;margin:23px 13px 14px}.subject-dot{width:7px;height:7px;border-radius:50%;margin:0 5px}.subject-dot.chemistry{background:#749586}.subject-dot.mathematics{background:#c4aa72}.subject-dot.physics{background:#8b9bb7}.subject-nav svg{margin-left:auto;opacity:.45}.sidebar-bottom{margin-top:auto;padding-top:40px}.small-note{background:#e8edde;border:1px solid #dfe5d5;border-radius:9px;padding:20px 18px;margin:0 6px 22px;position:relative}.small-note>svg{color:#7e9577;margin-bottom:15px}.small-note strong{display:block;font-family:Songti SC,serif;font-size:16px;letter-spacing:1px}.small-note p{font-size:11px;color:#7f8b78;margin:10px 0 17px}.small-note>span{font-size:7px;letter-spacing:1.6px;color:#98a18e}.side-action{display:flex;align-items:center;gap:10px;padding:12px 13px;color:#71816d;font-size:11px}.side-action svg:last-child:not(:first-child){margin-left:auto}.main-shell{margin-left:226px;width:calc(100% - 226px)}.topbar{height:78px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 45px;background:#fbfcf8}.breadcrumb{display:flex;gap:13px;align-items:center;font-size:11px;color:#a0a79d}.breadcrumb span{color:#677464}.header-actions{display:flex;gap:20px;align-items:center}.language{font-size:10px;display:flex;gap:7px;align-items:center;color:#81907d}.header-separator{height:21px;width:1px;background:var(--border)}.user-button{display:flex;align-items:center;gap:10px;font-size:11px}.avatar{display:grid;place-items:center;width:33px;height:33px;border-radius:50%;background:#e4e8d4;font-size:13px;color:#69744f}.avatar.large{width:65px;height:65px;font-size:25px}.button{padding:13px 18px;display:inline-flex;align-items:center;justify-content:center;gap:12px;border-radius:7px;font-size:12px;font-weight:500;transition:.18s;white-space:nowrap;border:1px solid transparent}.button:hover:not(:disabled){transform:translateY(-1px);filter:brightness(1.06)}.button.dark{background:var(--green);color:#fff}.button.cream{background:#eef0d6;color:#244738;border-color:#eef0d6}.button.outline{background:transparent;border-color:#d9e1d4}.button.small{padding:9px 13px;font-size:11px}.button.full{width:100%}.icon-button{display:grid;place-items:center;width:34px;height:34px;border-radius:6px}.icon-button:hover{background:#e7ede4}.mobile-toggle{display:none}main{max-width:1500px;margin:auto;padding:34px 45px 0}.eyebrow{font-size:9px;letter-spacing:1.8px;color:#869482;font-weight:500}.page-heading{margin:3px 0 27px}.page-heading h1{font-size:29px;letter-spacing:.2px;margin:13px 0 12px;color:#2d4033;line-height:1.4}.page-heading p{font-size:12px;color:#84907c;margin-bottom:0}.greeting-star{color:#bca36d;font-size:27px;margin-left:14px;vertical-align:middle}.hero{display:flex;position:relative;overflow:hidden;background:#234d40;color:#f4f1da;border-radius:12px;min-height:333px;border:1px solid #294d3c}.hero-copy{position:relative;z-index:2;padding:33px 38px;flex:1}.hero-kicker{display:flex;gap:8px;align-items:center;font-size:10px;letter-spacing:1px;color:#ccdac0}.hero-kicker>span{width:5px;height:5px;background:#c8d397;border-radius:50%}.hero h2{font-family:Songti SC,STSong,serif;font-size:38px;font-weight:500;line-height:1.4;letter-spacing:3px;margin:16px 0 12px}.hero p{font-size:11px;color:#b8c9b6;line-height:1.9;margin-bottom:21px}.hero .button{font-size:11px;padding:11px 18px}.hero-foot{display:flex;align-items:center;gap:12px;font-size:9px;color:#acbfa6;margin-top:20px}.hero-foot i{width:2px;height:2px;border-radius:50%;background:#8aa282}.hero-visual{width:43%;position:relative;display:flex;align-items:center;justify-content:center;border-left:1px solid #cbd5b412;margin-left:-20px;background:repeating-linear-gradient(0deg,transparent,transparent 35px,#d1ddbb09 35px,#d1ddbb09 36px),repeating-linear-gradient(90deg,transparent,transparent 35px,#d1ddbb09 35px,#d1ddbb09 36px)}.hero-art{width:130%;max-width:450px;position:relative;left:-10px;color:#bbcd9a;transform:rotate(-13deg)}.orbit-text{position:absolute;top:33px;left:25px;color:#87a27c;font-size:8px;letter-spacing:2px}.hero-formula{position:absolute;bottom:31px;left:33px;color:#9ab18f;font-family:Songti SC,serif;letter-spacing:4px;font-size:12px}.hero-sticker{position:absolute;right:22px;bottom:62px;background:#dadbb2;color:#3c5944;border:1px solid #f5efd34a;transform:rotate(9deg);padding:17px 17px 12px;font-size:8px;box-shadow:0 6px 25px #08231730}.hero-sticker em{font-family:Georgia,serif;font-size:16px;display:block;padding:5px 20px 0 0}.hero-sticker svg{position:absolute;right:10px;top:12px}.stat-row{display:grid;grid-template-columns:repeat(4,1fr);margin:25px 0 31px;border:1px solid var(--border);border-radius:10px;background:#fcfdf9;padding:22px 0}.stat{padding:0 25px;border-right:1px solid #e5eade}.stat:last-child{border-right:0}.stat-label{display:flex;align-items:center;gap:7px;font-size:10px;color:#8d9886;margin-bottom:13px}.stat-label svg{color:#94a088;width:14px}.stat strong{font-size:29px;letter-spacing:-1px;font-weight:500;color:#334d38;font-variant-numeric:tabular-nums}.stat span{font-size:10px;color:#8e9789;margin-left:7px}.section-title{display:flex;align-items:center;justify-content:space-between;margin:28px 0 20px;gap:16px}.section-title h2{font-size:20px;margin:8px 0 0;font-weight:500}.section-title h3{margin:0;font-size:16px}.section-title>a{display:flex;align-items:center;gap:9px;font-size:11px;color:#6b8067}.section-title>span{font-size:11px;color:#84927b}.section-title small{color:#98a28f;margin-left:10px}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.course-card{background:#fff;border:1px solid #e2e7dc;border-radius:10px;overflow:hidden;transition:box-shadow .2s,transform .2s}.course-card:hover{transform:translateY(-3px);box-shadow:0 10px 25px #31463209}.course-cover{height:167px;position:relative;display:block;overflow:hidden;border-bottom:1px solid #e4e6db}.chemistry{background-color:#e2ebe0;color:#628975}.mathematics{background-color:#f0ead8;color:#b29b65}.physics{background-color:#e5eaf0;color:#7b91ae}.course-art{position:absolute;width:100%;height:100%;inset:0;object-fit:cover}.cover-label{position:absolute;top:17px;left:18px;font-size:7px;letter-spacing:1.8px;z-index:1}.cover-number{position:absolute;right:16px;top:12px;font:italic 22px Georgia,serif;opacity:.38}.cover-open{position:absolute;bottom:13px;right:14px;display:grid;place-items:center;width:29px;height:29px;border-radius:50%;border:1px solid #ffffff6b;background:#ffffff60}.course-body{padding:17px 18px 18px}.card-tags{display:flex;align-items:center;gap:8px;font-size:9px;color:#9aa18f;margin-bottom:12px}.tag{display:inline-flex;align-items:center;gap:5px;border-radius:4px;padding:4px 7px;font-size:9px;background:#f0f3ea;color:#7c8e6c;white-space:nowrap}.tag.chemistry{background:#edf3e9;color:#648267}.tag.mathematics{background:#f6f0e1;color:#a68e5b}.tag.physics{background:#eff2f7;color:#7c91b1}.favorite-button{margin-left:auto;display:grid;place-items:center;color:#a4ac9f;padding:1px}.favorite-button.saved{color:#517951}.course-card h3{font-size:15px;font-weight:500;color:#3c4e39;margin:0 0 10px;line-height:1.5}.course-card p{font-size:10px;color:#96a08d;margin:0 0 18px}.course-card p span{margin:0 7px}.card-footer{display:flex;justify-content:space-between;gap:7px;align-items:center;border-top:1px solid #edf0e8;padding-top:14px;font-size:10px;color:#7e8e73}.card-footer strong{font-size:20px;font-weight:500;color:#455f3b}.card-footer del{font-size:10px;margin-left:5px;color:#9fa792}.card-footer small{font-size:8px;margin-left:5px;color:#a0a895}.card-footer a{display:flex;align-items:center;gap:5px;font-size:9px}.bottom-note{display:flex;justify-content:space-between;align-items:center;gap:20px;border:1px dashed #dce3d2;background:#f1f4eb;border-radius:9px;padding:18px 22px;margin:26px 0;font-size:11px;color:#7f8f70}.bottom-note>div,.bottom-note>span{display:flex;align-items:center;gap:10px}.bottom-note>span{font-size:9px;color:#9aa38e}footer{border-top:1px solid var(--border);display:flex;justify-content:space-between;gap:20px;padding:24px 0 28px;margin-top:38px;font-size:8px;color:#9ca592;letter-spacing:.3px}footer span:last-child{display:flex;gap:9px;align-items:center}.catalog-tools{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--border);padding-bottom:15px;margin-top:30px}.tabs{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.tabs button{padding:10px 16px;font-size:11px;color:#83927b;border-radius:6px;white-space:nowrap}.tabs button.selected{background:#294f41;color:#fff}.search{display:flex;align-items:center;gap:8px;border:1px solid #e1e6d9;background:#fcfdf9;border-radius:7px;padding:0 12px;color:#9ca78d}.search input{background:transparent;border:0;padding:10px 0;font-size:11px;box-shadow:none;width:170px}.search button{font-size:10px;color:#48764f}.filter-row{display:flex;justify-content:space-between;align-items:center;margin:20px 0;font-size:10px;color:#8a9680}.filter-row select{margin-left:9px;font-size:10px;padding:6px 25px 6px 10px;background:#fafbf7}.catalog-message{margin-top:35px;display:flex;align-items:center;gap:15px;padding:22px;background:#eef2e7;border:1px solid #e0e6d6;border-radius:9px}.catalog-message>svg{color:#8ea27c}.catalog-message strong{font-size:12px;font-weight:500}.catalog-message p{font-size:10px;color:#8b9980;margin:6px 0 0}.catalog-message .button{margin-left:auto}.empty{display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;border:1px dashed #dde5d4;border-radius:10px;padding:55px 25px;background:#f9fbf5;min-height:230px;color:#93a283}.empty>svg{margin-bottom:18px;stroke-width:1.3}.empty h3{color:#4c6242;font-weight:500;font-size:18px;margin:0 0 10px}.empty p{font-size:12px;max-width:440px}.empty .button{margin-top:10px}.loading{padding:80px;text-align:center;color:#8e9b83}.panel{padding:24px;background:#fff;border:1px solid #e1e7d9;border-radius:10px;margin-bottom:20px}.panel h3{font-size:16px;margin-bottom:18px}.muted{color:#8a9681}.tiny{font-size:10px}.centered{text-align:center}.continue-bar{display:flex;width:100%;align-items:center;gap:15px;border:1px solid #e0e7d9;background:#fff;padding:17px 20px;border-radius:8px;text-align:left;margin-bottom:16px}.continue-bar:hover{background:#f4f7ef}.continue-bar div{flex:1}.continue-bar strong{display:block;font-weight:500;font-size:13px;margin-top:6px}.continue-bar small{font-size:9px;color:#8d9c81}.continue-bar>span:not(:first-child){font-size:10px;color:#8e9b82}.play-square,.subject-icon{display:grid;place-items:center;width:43px;height:44px;background:#e7eee0;color:#648957;border-radius:8px}.subject-icon.chemistry{background:#e2ebe0;color:#628975}.subject-icon.mathematics{background:#f0ead8;color:#b29b65}.subject-icon.physics{background:#e5eaf0;color:#7b91ae}.activity-chart{height:150px;display:flex;align-items:end;gap:15px;margin:28px 0 30px;padding-bottom:5px}.activity-chart>div{flex:1;height:100%;display:flex;justify-content:flex-end;align-items:center;flex-direction:column;position:relative}.activity-chart span{width:75%;display:block;border-radius:5px 5px 0 0;background:#e8eede}.activity-chart span.has-activity{background:#8ba983;min-height:5px}.activity-chart small{position:absolute;bottom:-22px;color:#a1ac94;font-size:9px}.back-link{display:flex;gap:5px;align-items:center;padding:0;font-size:11px;color:#87977c;margin:0 0 24px}.course-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}.course-heading h1{font-size:28px;font-weight:500;margin:13px 0 12px}.course-heading p{font-size:11px;color:#8a9780;margin-bottom:0}.course-heading p span{margin:0 10px}.learning-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:24px}.player{position:relative;width:100%;aspect-ratio:16/9;background:#173a30;border-radius:10px;overflow:hidden;color:#b5cca5}.player>.course-art{opacity:.3}.player video{width:100%;height:100%;background:#0b1712;display:block}.player-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#e1e8cd;background:#14342650;padding:20px;text-align:center}.play-circle{border:1px solid #d1dec148;background:#cbd6b512;width:61px;height:61px;display:grid;place-items:center;border-radius:50%;margin-bottom:18px}.player h3{font-family:Songti SC,serif;font-size:24px;font-weight:500;margin-bottom:10px}.player p{font-size:11px;color:#a6b99a}.player-caption{display:flex;align-items:center;justify-content:space-between;padding:16px 1px 24px;font-size:12px;gap:20px}.player-caption span:last-child{display:flex;gap:6px;align-items:center;font-size:9px;color:#9da58e}.lesson-content .tabs{border-bottom:1px solid #e5eadd;padding-bottom:13px;margin-bottom:26px}.lesson-content .tabs button{font-size:11px}.lesson-content h3{font-size:17px}.lesson-content p{font-size:12px;color:#809076;line-height:2}.features{display:flex;align-items:center;gap:20px;margin-top:27px;font-size:10px;color:#7f9570}.features span{display:flex;gap:7px;align-items:center}.notes-input{width:100%;min-height:180px;resize:vertical;margin-bottom:15px;font-size:12px;line-height:1.8}.purchase-panel{border:1px solid #dee6d4;border-radius:10px;background:#eff3e8;padding:23px;margin-bottom:20px}.purchase-panel h3{font-size:18px;margin:14px 0}.purchase-panel p{font-size:10px;color:#8a987d;margin:15px 0 20px}.price{display:flex;align-items:baseline;gap:9px}.price strong{font-size:36px;font-weight:500;letter-spacing:-1px}.price del{font-size:13px;color:#a2aa96}.price>span{font-size:9px;color:#95a185}.sale-tag{display:inline-flex;color:#9c8855;font-size:9px;background:#e8e9ce;border-radius:4px;padding:6px 8px;margin-top:13px}.text-button{display:block;margin:16px auto 0;text-align:center;color:#7c926c;font-size:11px;text-decoration:underline;text-underline-offset:4px;line-height:1.6}.chapter-panel{border:1px solid #e0e7d8;border-radius:10px;background:#fff;overflow:hidden}.chapter-panel>h3{padding:21px;margin:0;border-bottom:1px solid #e8eddf;font-size:14px;display:flex;align-items:center;justify-content:space-between}.chapter-panel h3 span{font-size:10px;color:#9da890;font-weight:400}.chapter-panel h4{font-size:10px;color:#89977a;background:#f9fbf5;padding:12px 20px;margin:0}.chapter-empty{font-size:11px;padding:23px}.lesson-row{display:flex;align-items:center;gap:10px;width:100%;padding:16px 17px;border-bottom:1px solid #edf0e8;text-align:left}.lesson-row:last-child{border-bottom:0}.lesson-row:hover{background:#f7f9f3}.lesson-row.selected{background:#eef3e7;color:#587749}.lesson-number{font-size:11px;color:#a0ae91;font-variant-numeric:tabular-nums}.lesson-row div{flex:1;min-width:0}.lesson-row strong{font-size:11px;font-weight:500;line-height:1.7;display:block;overflow-wrap:anywhere}.lesson-row small{color:#a0ac92;display:block;font-size:9px;margin-top:5px}.lesson-row>svg{color:#a4b296}.access-label{display:inline-flex;align-items:center;gap:7px;color:#668154;font-size:12px}.account-overview{display:flex;align-items:center;gap:22px}.account-overview h2{font-size:22px;margin:0 0 7px}.account-overview p{font-size:12px;color:#8d9b7f;margin:0 0 5px}.account-overview .button{margin-left:auto}.claim-panel{display:flex;gap:20px;background:#f0f4e8}.key-icon{width:46px;height:46px;background:#e1e9d5;border-radius:9px;display:grid;place-items:center;color:#6c8458}.claim-panel>div{flex:1}.claim-panel h3{margin:2px 0 10px}.claim-panel p{font-size:11px;color:#879577;max-width:620px}.claim-panel form{display:flex;gap:12px}.claim-panel input{flex:1;font-size:12px;max-width:460px}.access-card{display:flex;align-items:center;gap:18px}.access-card h3{margin:0 0 6px;font-size:14px}.access-card p{margin:0;font-size:10px;color:#8b997c}.access-card .button{margin-left:auto}.modal-backdrop{position:fixed;inset:0;z-index:100;background:#162f2866;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);padding:24px;display:flex;align-items:center;justify-content:center}.modal{position:relative;width:440px;max-height:90vh;overflow:auto;background:#fbfcf8;border:1px solid #e4e9da;border-radius:16px;padding:37px;box-shadow:0 30px 100px #132b2333;outline:none}.modal.wide{width:640px}.modal h2{font-family:Songti SC,serif;font-size:24px;line-height:1.6;font-weight:500;padding-right:12px}.modal>p{font-size:12px}.modal-close{position:absolute;right:11px;top:11px;color:#859779}.auth-eyebrow{font-size:8px;margin-bottom:20px}.form{display:flex;flex-direction:column;gap:18px;margin-top:22px}.form label{display:flex;flex-direction:column;gap:9px;font-size:11px;color:#7a8c6d}.form input,.form select,.form textarea{font-size:12px;width:100%}.form textarea{min-height:100px;resize:vertical}.form .checkbox-label{flex-direction:row;align-items:center}.checkbox-label input{width:16px;height:16px}.form-error{font-size:11px;background:#f9eee4;border:1px solid #eedbc7;color:#a47451;border-radius:6px;padding:12px;line-height:1.8}.form-error p{margin:0}.form-two{display:grid;grid-template-columns:1fr 1fr;gap:16px}.auth-switch{font-size:11px;color:#98a28b;text-align:center;margin-top:23px}.auth-switch button{color:#517743;text-decoration:underline;font-size:11px}.modal .centered{margin:22px 0 0;font-size:9px;line-height:1.8}.checkout-price{display:flex;align-items:center;justify-content:space-between;padding:20px 0;border-top:1px solid #e1e7d7;border-bottom:1px solid #e1e7d7;margin:20px 0;font-size:12px}.checkout-price strong{font-size:30px;font-weight:500}.checkout-price small{font-size:11px}.payment-methods{display:flex;flex-direction:column;gap:10px;margin:20px 0}.payment-methods button{display:flex;align-items:center;gap:12px;text-align:left;padding:13px;border:1px solid #e0e7d9;border-radius:8px;background:#fff}.payment-methods button.selected{border-color:#82a66c;background:#f0f5e9}.payment-logo{display:grid;place-items:center;width:37px;height:37px;border-radius:9px;background:#19a75c;color:#fff;font-weight:700;font-size:19px}.payment-logo.alipay{background:#238dcc}.payment-logo.paymob{background:#de452f}.payment-methods strong{display:block;font-size:12px;margin-bottom:4px}.payment-methods small{font-size:9px;color:#97a48a}.radio-dot{width:15px;height:15px;border:1px solid #b5c4a6;border-radius:50%;margin-left:auto}.selected>.radio-dot{border:4px solid #73915f;background:#f8fbf1}.notice{border:1px solid #e4e6cd;background:#f5f4e6;color:#97916b;font-size:11px;line-height:1.9;border-radius:7px;padding:14px 16px;margin:18px 0}.notice.success{background:#eef5e6;border-color:#dce8ce;color:#6f8b58}.error-banner{display:flex;justify-content:space-between;gap:15px;background:#f7eee3;color:#a7835e;border:1px solid #eadcc4;padding:13px 18px;font-size:12px;border-radius:7px;margin-bottom:20px}.error-banner button{text-decoration:underline}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%);z-index:150;display:flex;gap:12px;align-items:center;max-width:90vw;background:#244e42;color:#eef3e5;border:1px solid #7d9971;padding:15px 20px;box-shadow:0 5px 24px #26483326;border-radius:9px;font-size:12px}.toast button{color:#cedbbf;display:flex}.admin-tabs{display:flex;flex-wrap:wrap;gap:6px;border-bottom:1px solid #e0e7d8;padding-bottom:18px;margin:25px 0}.admin-tabs button{display:flex;align-items:center;gap:8px;padding:11px 14px;font-size:11px;color:#859879;border-radius:6px}.admin-tabs button.selected{background:#244e42;color:#f7faed}.admin-columns{display:grid;grid-template-columns:1fr 1fr;gap:20px}.admin-columns>.form{margin-top:0}.admin-columns p{font-size:12px}.data-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 0;border-bottom:1px solid #e9eedf;font-size:11px;line-height:1.7;overflow-wrap:anywhere}.data-row:last-child{border-bottom:0}.data-row strong{font-weight:500}.table-wrap{overflow:auto;border:1px solid #e0e7d8;border-radius:8px;background:#fff}table{width:100%;border-collapse:collapse;text-align:left;font-size:11px}th{background:#f0f4e9;color:#839674;font-weight:500;white-space:nowrap;padding:13px 17px}td{padding:17px;border-top:1px solid #e7ecdf;line-height:1.8;max-width:340px;overflow-wrap:anywhere}td strong{display:block;font-weight:500}td small{display:block;color:#9baa8b;font-size:10px;max-width:300px;overflow-wrap:anywhere}.table-action{font-size:10px;color:#72955f;margin:3px 8px 3px 0;padding:0;white-space:nowrap;text-decoration:underline;text-underline-offset:3px}.danger{color:#ac7b5e}.entitlement-chip{display:inline-block;white-space:nowrap;font-size:9px;border-radius:4px;padding:3px 7px;margin:2px 6px 2px 0;background:#f0f0e6;color:#9e9d81}.entitlement-chip.active{background:#e8f0df;color:#6c8d55}.admin-course .section-title{margin-top:0}.row-actions{display:flex;gap:9px;flex-wrap:wrap}.upload-file{position:relative;cursor:pointer;overflow:hidden}.upload-file input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;padding:0}.padded{padding:22px;font-size:11px}.progress-track{height:4px;background:#e6ecdd;border-radius:4px;overflow:hidden;margin-top:12px}.progress-track span{display:block;height:100%;background:#85a372;border-radius:4px;transition:width .3s}.upload-state>div:first-child{display:flex;justify-content:space-between;gap:15px}.upload-state p{font-size:10px;color:#92a080;margin:12px 0 0}.upload-state.failed{border-color:#d3b59d}.import-input{width:100%;height:160px;margin:18px 0;font-size:12px;font-family:ui-monospace,monospace;resize:vertical;line-height:1.8}.preview-result{margin-top:25px}.secret-code{padding:18px;background:#e9efdf;color:#507146;white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px;border-radius:8px;-webkit-user-select:all;user-select:all}hr{border:0;border-top:1px solid var(--border);margin:24px 0}.scrim{display:none}@media(min-width:1500px){.hero{min-height:370px}.hero-copy{padding:42px 48px}.hero h2{font-size:44px}.course-cover{height:205px}.course-card h3{font-size:17px}.course-body{padding:20px 23px}.stat-row{margin:28px 0 36px}}@media(max-width:1200px){.sidebar{width:205px;padding-left:15px;padding-right:15px}.main-shell{margin-left:205px;width:calc(100% - 205px)}main{padding:30px 28px 0}.topbar{padding:0 28px}.hero-copy{padding:30px}.hero h2{font-size:33px}.hero-visual{width:40%}.course-grid{gap:14px}.course-cover{height:140px}.course-body{padding:14px}.course-card h3{font-size:13px}.card-footer a{font-size:8px}.learning-layout{grid-template-columns:minmax(0,1fr) 260px;gap:18px}.features{flex-wrap:wrap;gap:14px}.stat{padding:0 20px}}@media(max-width:950px){.sidebar{width:185px;padding-left:10px;padding-right:10px}.main-shell{margin-left:185px;width:calc(100% - 185px)}main{padding:25px 22px 0}.topbar{padding:0 22px}.language,.header-separator{display:none}.brand{padding-left:8px;gap:9px}.brand strong{font-size:22px}.brand strong span{font-size:13px}.brand small{font-size:6px}.brand-mark{width:35px;height:38px}.hero-visual{width:35%}.hero-sticker{display:none}.hero h2{font-size:30px}.hero-copy{padding:28px 25px}.hero p{font-size:10px}.orbit-text{font-size:6px;left:10px}.hero-formula{display:none}.stat{padding:0 15px}.stat strong{font-size:25px}.stat-label{font-size:9px}.stat-row{padding:20px 0}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.course-cover{height:170px}.course-card h3{font-size:15px}.bottom-note>span{display:none}.catalog-tools{flex-wrap:wrap}.catalog-tools>.search{width:100%}.catalog-tools>.search input{width:100%}.learning-layout{grid-template-columns:1fr}.lesson-sidebar{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}.admin-columns{grid-template-columns:1fr}.admin-tabs{gap:2px}.admin-tabs button{font-size:10px;padding:10px}.course-heading h1{font-size:24px}}@media(max-width:700px){.sidebar{transform:translate(-100%);transition:transform .2s;width:230px}.sidebar.open{transform:translate(0)}.sidebar-bottom{padding-top:25px}.main-shell{margin-left:0;width:100%}.scrim{display:block;position:fixed;inset:0;background:#1a322558;z-index:25}.topbar{height:63px;padding:0 19px;gap:12px}.mobile-toggle{display:grid}.breadcrumb{margin-right:auto;gap:8px;font-size:10px}.breadcrumb>span:first-child{display:none}.header-actions{gap:10px}.topbar .button{font-size:10px;padding:8px 10px}.user-button>span:not(.avatar){display:none}main{padding:25px 18px 0}.page-heading{margin-bottom:23px}.page-heading h1{font-size:24px;margin:11px 0 10px}.page-heading p{font-size:11px;line-height:1.9}.eyebrow{font-size:8px}.greeting-star{font-size:21px;margin-left:8px}.hero{min-height:300px}.hero-copy{padding:29px 25px}.hero h2{font-size:31px;letter-spacing:2px}.hero-visual{width:25%;position:absolute;right:0;top:0;bottom:0;opacity:.4;overflow:hidden;border-left:0}.hero-art{width:350px;min-width:350px;left:45px}.orbit-text{display:none}.hero-foot{font-size:8px}.hero p{font-size:10px}.stat-row{grid-template-columns:repeat(2,1fr);padding:0;margin:20px 0 26px;gap:0}.stat{padding:19px 22px}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid #e5eade}.stat-label{font-size:9px;margin-bottom:10px}.stat strong{font-size:27px}.stat span{font-size:9px}.section-title h2{font-size:18px}.section-title>a{font-size:10px}.course-grid{grid-template-columns:1fr;gap:20px}.course-cover{height:205px}.course-body{padding:20px 21px}.course-card h3{font-size:17px}.course-card p{font-size:11px}.card-tags{font-size:10px}.card-footer a{font-size:11px}.card-footer strong{font-size:22px}.card-footer{font-size:11px}.cover-label{font-size:9px;top:20px;left:22px}.bottom-note{padding:17px;font-size:10px}.tabs{gap:3px}.tabs button{padding:10px 13px;font-size:11px}.catalog-message{flex-wrap:wrap;padding:20px}.catalog-message>div{flex:1}.catalog-message .button{margin-left:35px}.continue-bar{padding:14px;gap:11px}.continue-bar>span:not(:first-child){display:none}.continue-bar strong{font-size:12px}.activity-chart{gap:8px;height:115px}.panel{padding:20px}.course-heading{align-items:start;gap:10px}.course-heading h1{font-size:23px;line-height:1.6}.course-heading .button{font-size:9px;padding:8px;margin-top:27px;gap:5px}.course-heading p{font-size:10px}.lesson-sidebar{grid-template-columns:1fr}.player-placeholder{padding:16px}.player h3{font-size:20px}.player p{font-size:10px}.play-circle{width:44px;height:44px;margin-bottom:12px}.player .button{font-size:9px;padding:7px 12px}.player-caption{font-size:10px}.player-caption span:last-child{font-size:8px}.lesson-content{padding:20px}.features{font-size:9px}.account-overview{gap:14px;flex-wrap:wrap}.account-overview .button{font-size:10px;padding:9px 12px}.account-overview h2{font-size:19px}.account-overview p{font-size:11px}.avatar.large{width:50px;height:50px}.claim-panel{gap:13px;flex-direction:column}.claim-panel form{flex-direction:column}.claim-panel input{width:100%}.claim-panel form .button{align-self:flex-start}.access-card{gap:12px;flex-wrap:wrap}.access-card .button{margin-left:55px}.access-card h3{font-size:13px}.modal-backdrop{padding:16px}.modal{padding:30px 23px;max-height:93vh}.modal h2{font-size:22px}.modal.wide{width:100%}.form-two{grid-template-columns:1fr}.toast{bottom:17px;padding:13px 15px;font-size:11px;min-width:240px}.admin-tabs{flex-wrap:nowrap;overflow:auto;gap:5px}.admin-tabs button{white-space:nowrap}.admin-course{padding:18px}.admin-course .section-title{align-items:flex-start;flex-wrap:wrap}.section-title .search{max-width:200px}.section-title .search input{width:115px}.section-title .search button{font-size:9px}.section-title h2{white-space:nowrap}.section-title>.button{font-size:9px;padding:8px 11px}.admin-columns{gap:0}footer{font-size:7px;gap:10px}.import-input,.data-row{font-size:10px}.user-button .avatar{width:30px;height:30px}}.brand small{white-space:nowrap;font-size:6.5px;letter-spacing:1px}.small-note strong{font-size:15px;white-space:nowrap}