:root{--bg:#faf8f2;--paper:#fffefa;--ink:#20382f;--muted:#6e796e;--green:#173f37;--orange:#ef9765;--line:#e3e5d9;--soft:#edf0e6;--radius:20px;font-family:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}button,a,select,input{touch-action:manipulation}a{color:inherit}button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #dc7e43;outline-offset:4px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}.skip-link{position:absolute;top:-60px;left:16px;background:var(--green);color:white;padding:12px;z-index:100}.skip-link:focus{top:10px}.site-header{max-width:1120px;margin:0 auto;padding:26px 36px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;text-decoration:none}.brand-icon{display:grid;place-items:center;width:42px;height:42px;background:var(--green);color:var(--paper);border-radius:13px}.brand-icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.brand strong{font-size:14px;letter-spacing:2px;display:block;line-height:1.4}.brand small{font-size:11px;color:var(--muted);letter-spacing:1px}.quiet-button{border:0;background:transparent;min-height:44px;padding:9px 8px;font-size:13px}.quiet-button span{margin-left:8px}main{max-width:1048px;margin:auto;padding:24px 0 16px;outline:none}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:44px;align-items:center;padding:14px 0 45px}.eyebrow{font-size:10px;letter-spacing:2.1px;font-weight:700;color:#7b836e;text-transform:uppercase}.hero h1{font-size:clamp(30px,4vw,43px);line-height:1.4;letter-spacing:-1.3px;margin:15px 0 14px;font-weight:650}.hero h1 em{font-style:normal;color:#bd6c3d}.hero p{font-size:14px;color:var(--muted);line-height:1.9;margin:0;max-width:460px}.hero-stats{display:flex;gap:24px;margin-top:23px}.hero-stats strong{font-size:20px;display:block;line-height:1.4;letter-spacing:-.5px}.hero-stats span{font-size:10px;color:var(--muted)}.continue-card{position:relative;overflow:hidden;border-radius:24px;background:var(--green);padding:28px;color:var(--paper);min-height:225px;box-shadow:0 15px 30px #173f3710}.continue-card .eyebrow{color:#b9cabe;letter-spacing:1.5px}.continue-card h2{font-size:23px;line-height:1.35;font-weight:520;max-width:275px;margin:18px 0 10px;position:relative;z-index:1}.continue-meta{font-size:11px;color:#b9cabe}.continue-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:20px}.continue-button{display:inline-flex;align-items:center;gap:12px;border:0;border-radius:30px;background:var(--orange);padding:10px 18px;font-size:12px;font-weight:650;min-height:43px}.continue-button svg{width:13px;height:13px;fill:currentColor}.wave{position:absolute;right:-16px;top:44px;height:102px;display:flex;align-items:center;gap:5px;opacity:.18;transform:rotate(-14deg)}.wave i{display:block;width:7px;background:#c9dfc0;border-radius:9px}.wave i:nth-child(5n+1){height:35px}.wave i:nth-child(5n+2){height:70px}.wave i:nth-child(5n+3){height:100px}.wave i:nth-child(5n+4){height:53px}.wave i:nth-child(5n){height:82px}.library-header{display:flex;justify-content:space-between;align-items:end;margin-bottom:20px}.library-header h2{font-size:23px;font-weight:600;letter-spacing:-.5px;margin:0}.library-header p{color:var(--muted);font-size:11px;margin:7px 0 0}.search{display:flex;align-items:center;gap:9px;background:white;border:1px solid var(--line);border-radius:12px;padding:11px 13px;min-width:290px}.search svg{width:17px;height:17px;fill:none;stroke:#728172;stroke-width:1.8}.search input{width:100%;min-width:0;background:transparent;border:0;outline:0;font-size:12px;color:var(--ink)}.search:focus-within{border-color:var(--green);box-shadow:0 0 0 2px #173f3715}.search input:focus-visible{outline:none}.filters{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);margin-bottom:23px;gap:12px}.tabs{display:flex;gap:22px}.tab{border:0;background:transparent;padding:13px 0 14px;font-size:12px;color:var(--muted);border-bottom:2px solid transparent;white-space:nowrap}.tab.active{color:var(--green);border-bottom-color:var(--green);font-weight:650}.tab small{display:inline-block;margin-left:5px;opacity:.6;font-size:10px}.filter-selects{display:flex;gap:12px}.filter-selects select{border:0;background:transparent;color:var(--muted);font-size:11px;min-height:44px;max-width:120px}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.course-card{background:var(--paper);border:1px solid var(--line);border-radius:17px;min-width:0;padding:19px 20px 16px;display:flex;flex-direction:column;position:relative;transition:border-color .15s,transform .15s}.course-card:hover{border-color:#a8b7a1;transform:translateY(-2px)}.card-top{display:flex;align-items:center;justify-content:space-between}.course-number{font-size:10px;color:#939d8f;letter-spacing:1px}.card-badge{font-size:9px;letter-spacing:.3px;padding:4px 7px;border-radius:5px;background:var(--soft);color:#71806b;margin-left:8px}.card-badge.done{background:#dfeddf;color:#2d6546}.fav-button{border:0;background:transparent;font-size:22px;color:#9aa58e;width:36px;height:36px;display:grid;place-items:center;line-height:1;border-radius:50%;margin-right:-8px}.fav-button[aria-pressed=true]{color:#ba723f}.course-title{border:0;background:transparent;text-align:left;padding:0;line-height:1.45;font-size:18px;font-weight:550;letter-spacing:-.3px;margin-top:10px;min-height:53px}.course-words{font-size:10px;line-height:1.8;color:var(--muted);margin:9px 0 23px;min-height:36px}.card-bottom{display:flex;align-items:center;gap:10px;margin-top:auto}.small-play{border:0;display:grid;place-items:center;width:33px;height:33px;background:var(--soft);color:var(--green);border-radius:50%}.small-play svg{width:11px;height:11px;fill:currentColor}.card-duration{font-size:10px;color:var(--muted)}.card-date{font-size:9px;color:#959e90;margin-left:auto}.card-progress{height:3px;background:#e8ebdf;border-radius:3px;margin-top:15px;overflow:hidden}.card-progress span{display:block;height:100%;background:#82986b;border-radius:3px}.load-more{display:block;margin:27px auto 6px;min-height:44px;padding:11px 25px;border:1px solid #cbd4c5;background:transparent;border-radius:24px;font-size:12px}.empty{padding:60px 20px;text-align:center;border:1px dashed #d3d9cb;border-radius:18px;color:var(--muted);grid-column:1/-1}.empty strong{display:block;color:var(--ink);font-size:19px;margin-bottom:8px}.empty p{font-size:13px}.site-footer{text-align:center;font-size:10px;color:#8a9382;line-height:2.1;padding:50px 20px 35px}.site-footer a{text-underline-offset:3px}body.has-player{padding-bottom:125px}.player{position:fixed;bottom:0;left:0;right:0;background:#fffefaf5;border-top:1px solid #dfe4d5;box-shadow:0 -6px 30px #173f370b;z-index:20;padding:15px 28px calc(15px + env(safe-area-inset-bottom));backdrop-filter:blur(16px)}.player-inner{max-width:1048px;margin:auto;display:grid;grid-template-columns:250px 134px minmax(170px,1fr) 65px 70px;align-items:center;gap:18px}.player-track{display:flex;align-items:center;gap:11px;background:transparent;border:0;text-align:left;padding:0;min-width:0}.player-track>span:last-child{min-width:0}.player-cover{width:43px;height:43px;border-radius:11px;background:#e6ebdf;display:grid;place-items:center;font-size:27px;color:#61775a;flex-shrink:0}.player-track small{font-size:9px;color:var(--muted);display:block;margin-bottom:4px}.player-track strong{font-size:12px;font-weight:550;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;max-width:190px}.player-transport{display:flex;align-items:center;gap:12px}.play-button{width:43px;height:43px;border-radius:50%;display:grid;place-items:center;border:0;background:var(--green);color:white;flex-shrink:0}.play-button svg{width:17px;height:17px;fill:currentColor}.circle-button{border:0;background:transparent;position:relative;width:32px;height:40px;flex-shrink:0;font-size:25px;line-height:1}.circle-button small{position:absolute;top:17px;left:11px;font-size:7px;line-height:1}.player-progress{display:flex;align-items:center;gap:8px}.player-progress time{font-size:9px;color:var(--muted);font-variant-numeric:tabular-nums;min-width:25px}.player-progress input{min-width:40px;width:100%;accent-color:var(--green);height:30px;cursor:pointer}.speed-label select{border:1px solid var(--line);border-radius:7px;padding:7px 4px;background:transparent;font-size:11px;min-height:36px;width:62px}.next-track{font-size:10px;white-space:nowrap;padding:8px 0}.next-track span{margin-left:3px}.lesson-nav{display:flex;align-items:center;justify-content:space-between;margin:0 0 25px}.back-button{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:12px;color:var(--muted);min-height:44px}.lesson-header{max-width:760px;margin:auto}.lesson-eyebrow{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:11px}.lesson-header h1{font-weight:550;font-size:clamp(29px,4.5vw,43px);line-height:1.25;letter-spacing:-1px;margin:17px 0}.lesson-intro{font-size:14px;line-height:1.9;color:var(--muted);margin-bottom:24px}.lesson-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.primary-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;background:var(--green);color:white;padding:13px 22px;border-radius:25px;font-size:13px;min-height:46px}.primary-button svg{width:12px;height:12px;fill:currentColor}.outline-button{border:1px solid var(--line);background:transparent;padding:11px 16px;border-radius:25px;font-size:12px;min-height:44px}.outline-button.is-done{border-color:#91b28c;background:#eaf3e5;color:#2d6546}.lesson-body{max-width:760px;margin:34px auto 0}.lesson-tabs{display:flex;gap:27px;border-bottom:1px solid var(--line);margin-bottom:25px}.lesson-tabs button{font-size:13px}.transcript-tools{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;color:var(--muted);font-size:11px}.font-size-controls{display:flex;align-items:center;gap:4px}.font-size-controls button{border:1px solid var(--line);background:transparent;border-radius:6px;min-width:38px;min-height:36px;font-size:13px}.transcript{--reading:17px}.turn{display:grid;grid-template-columns:70px 1fr;gap:18px;margin-bottom:23px}.speaker{font-size:11px;font-weight:600;color:#64815f;line-height:1.8;padding-top:4px}.turn p{font-size:var(--reading);line-height:1.9;margin:0;color:#35453a}.vocab-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.vocab-card{padding:22px;background:var(--paper);border:1px solid var(--line);border-radius:15px}.vocab-card h3{font-size:20px;font-weight:550;margin:0 0 10px;color:#567c55}.vocab-card p{font-size:14px;line-height:1.8;color:var(--muted);margin:0}.resource-card{display:flex;align-items:center;justify-content:space-between;padding:20px;border:1px solid var(--line);background:var(--paper);border-radius:14px;margin-bottom:12px;gap:16px;text-decoration:none}.resource-card strong{display:block;font-size:14px;font-weight:550}.resource-card small{display:block;color:var(--muted);font-size:11px;margin-top:6px}.resource-card>span:last-child{font-size:23px;color:#8a9a7a}.lesson-source{font-size:10px;color:var(--muted);margin-top:30px}.loading{padding:80px 24px;text-align:center;color:var(--muted);font-size:14px}.toast{position:fixed;bottom:145px;left:50%;transform:translate(-50%,12px);background:var(--green);color:white;padding:12px 20px;border-radius:30px;font-size:12px;max-width:90vw;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:50}.toast.visible{opacity:1;transform:translate(-50%,0)}dialog{max-width:520px;width:calc(100% - 36px);border:0;border-radius:23px;background:var(--paper);color:var(--ink);padding:36px;box-shadow:0 30px 100px #173f3730}dialog::backdrop{background:#122d2680;backdrop-filter:blur(4px)}dialog h2{font-size:27px;font-weight:550;margin:14px 0 22px}dialog h3{font-size:16px;margin-top:26px}dialog p,dialog li{font-size:13px;line-height:1.9;color:#61705e}dialog ol{padding-left:20px}dialog .muted{font-size:11px}.dialog-close{position:absolute;right:14px;top:9px;border:0;background:transparent;font-size:27px;min-width:40px;min-height:40px}.noscript{padding:30px;text-align:center}@media(max-width:1140px){main{padding-left:36px;padding-right:36px}.player-inner{grid-template-columns:210px 134px minmax(140px,1fr) 65px;gap:14px}.next-track{display:none}}@media(max-width:760px){.site-header{padding:22px 22px 15px}main{padding:17px 22px}.hero{gap:22px;grid-template-columns:1fr;padding:0 0 34px}.hero h1{font-size:33px;margin-top:12px}.hero p{font-size:13px}.hero-stats{gap:30px;margin-top:17px}.hero-stats strong{font-size:19px}.continue-card{padding:23px;min-height:190px;margin-top:2px}.continue-card h2{font-size:23px;margin:13px 0 6px;max-width:80%}.continue-bottom{margin-top:17px}.library-header{display:block;margin-bottom:13px}.library-header h2{font-size:22px}.search{margin-top:17px;width:100%;padding:12px 13px;min-width:0}.search input{font-size:14px}.filters{flex-wrap:wrap;gap:0;margin-bottom:18px}.tabs{width:100%;gap:27px}.tab{font-size:13px;padding-top:10px}.filter-selects{display:flex;justify-content:space-between;width:100%;border-top:1px solid #e3e5d970}.filter-selects select{font-size:11px;min-height:39px;max-width:none}.course-grid{grid-template-columns:1fr 1fr;gap:11px}.course-card{padding:13px 14px 14px;border-radius:14px}.course-title{font-size:16px;margin-top:7px;min-height:66px}.course-words{font-size:9px;min-height:32px;margin-bottom:17px}.course-number{font-size:9px}.card-badge{font-size:8px;padding:4px 5px;margin-left:4px}.fav-button{width:32px;height:32px;font-size:21px}.card-bottom{gap:7px;flex-wrap:wrap}.card-date{font-size:8px}.small-play{width:29px;height:29px}.card-duration{font-size:9px}.site-footer{font-size:9px;padding-top:35px}.player{padding:11px 20px calc(12px + env(safe-area-inset-bottom))}.player-inner{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:5px 10px}.player-track{grid-column:1;grid-row:1}.player-cover{height:34px;width:34px;font-size:22px;border-radius:9px}.player-track strong{font-size:11px;max-width:calc(100vw - 215px)}.player-track small{font-size:8px;margin-bottom:3px}.player-transport{grid-column:3;grid-row:1;gap:4px}.player-transport .circle-button{display:none}.play-button{width:39px;height:39px}.speed-label{grid-row:1;grid-column:2}.speed-label select{font-size:10px;width:58px;height:32px;min-height:32px}.player-progress{grid-row:2;grid-column:1/4;margin-top:4px;gap:9px}.player-progress input{height:31px}.player-progress time{font-size:9px}.next-track{display:none}body.has-player{padding-bottom:120px}.lesson-nav{margin-bottom:15px}.lesson-header h1{font-size:33px}.lesson-intro{font-size:13px}.lesson-actions{gap:8px}.primary-button{padding:12px 20px;font-size:12px}.outline-button{font-size:11px;padding:11px 13px}.lesson-body{margin-top:26px}.turn{grid-template-columns:1fr;gap:3px;margin-bottom:24px}.speaker{font-size:11px;padding:0}.turn p{line-height:1.9}.vocab-grid{grid-template-columns:1fr}.vocab-card{padding:20px}.lesson-tabs{gap:25px}.toast{bottom:130px}.transcript-tools{font-size:10px}dialog{padding:30px 25px}}@media(max-width:360px){main{padding-left:16px;padding-right:16px}.site-header{padding-left:16px;padding-right:16px}.hero h1{font-size:29px}.course-grid{grid-template-columns:1fr}.course-title{min-height:0}.course-words{min-height:0}.player-track strong{max-width:120px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

@media(max-width:760px){.player-inner{grid-template-columns:minmax(0,1fr) 111px 58px;gap:5px 8px}.player-transport{grid-column:2;gap:4px}.player-transport .circle-button{display:block}.speed-label{grid-column:3}.player-track strong{max-width:100%}}

/* Version 2: compact navigation and listening-first practice. */
.library-intro{display:flex;justify-content:space-between;align-items:center;gap:24px;margin:4px 0 24px}.library-intro h1{font-size:29px;font-weight:600;letter-spacing:-.7px;margin:8px 0}.library-intro p{font-size:12px;color:var(--muted);margin:0;line-height:1.8}.resume-strip{display:flex;align-items:center;gap:12px;background:#e9eee3;border:0;border-radius:12px;padding:14px 16px;text-align:left;max-width:390px;min-width:0}.resume-strip>span{font-size:10px;color:#66785c;white-space:nowrap}.resume-strip strong{font-size:12px;font-weight:550;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.resume-strip small{font-size:11px;white-space:nowrap;margin-left:auto}.library-tools{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:10px}.library-tools .search{min-width:0;margin:0}.jump-field{display:flex;align-items:center;gap:10px;min-width:0;background:white;border:1px solid var(--line);border-radius:12px;padding:0 12px;min-height:46px}.jump-field>span{font-size:11px;color:var(--muted);white-space:nowrap}.jump-field select{width:100%;min-width:0;border:0;background:transparent;min-height:44px;font-size:12px;color:var(--ink);text-overflow:ellipsis}.result-count{font-size:11px;color:var(--muted);margin:16px 0 10px}.course-list{list-style:none;padding:0;margin:0;border:1px solid var(--line);border-radius:15px;background:var(--paper);overflow:hidden}.course-row{display:grid;grid-template-columns:34px minmax(0,1fr) 36px 38px;gap:12px;align-items:center;padding:12px 18px;border-bottom:1px solid var(--line);min-height:72px}.course-row:last-child{border-bottom:0}.course-row:hover{background:#f2f5eb}.row-number{font-size:11px;color:#8c9985;font-variant-numeric:tabular-nums}.row-main{min-width:0}.row-title{display:block;text-align:left;border:0;background:transparent;padding:0;width:100%;min-height:26px;font-size:15px;font-weight:550;line-height:1.5}.row-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:10px;color:var(--muted);margin-top:4px;line-height:1.6}.row-meta span:empty{display:none}.course-row .fav-button{width:36px;height:40px;margin:0}.row-play{width:36px;height:36px}.detail-jump{max-width:760px;margin:0 auto 20px}.detail-jump .jump-field{background:transparent}.resource-practice{margin-bottom:18px}.practice-intro{font-size:13px;color:var(--muted);line-height:1.9}.practice-progress{font-size:12px;color:#4e7352;padding:10px 14px;background:#edf3e7;border-radius:9px}.quiz-group{padding:23px 0;border-top:1px solid var(--line)}.quiz-group h3{margin:0 0 7px;font-size:19px;font-weight:550}.quiz-group>p{font-size:12px;color:var(--muted);line-height:1.8;margin:0 0 7px}.quiz-source{display:inline-block;font-size:11px;color:#657a5b;text-underline-offset:3px;margin-bottom:16px}.answer-bank{background:#f0f3e9;border-radius:12px;padding:16px 20px 16px 39px;margin:0 0 20px;font-size:14px;line-height:1.8}.answer-bank li{padding-left:4px;margin:7px 0}.quiz-question{border-left:3px solid #dbe1d4;padding:13px 16px;margin:15px 0 0;background:#fffefa;border-radius:0 10px 10px 0}.quiz-question>label{display:block;font-size:15px;line-height:1.8;margin-bottom:10px}.question-number{color:#6b855e;font-weight:650}.quiz-question select{max-width:100%;width:100%;padding:10px 12px;background:white;border:1px solid #cfd9c7;border-radius:8px;font-size:14px;min-height:45px;color:var(--ink)}.quiz-question.is-correct{border-left-color:#528761;background:#f0f7ec}.quiz-question.is-incorrect{border-left-color:#c87f43;background:#fff5e8}.answer-feedback{font-size:12px;line-height:1.8;margin:10px 0 0;color:#50664c}.quiz-question.is-incorrect .answer-feedback{color:#925523}.quiz-score{padding:19px 20px;background:var(--green);color:white;border-radius:13px;margin:18px 0}.quiz-score strong{font-size:22px;font-weight:550;display:block}.quiz-score span{display:block;font-size:12px;color:#ccdbc8;margin-top:7px;line-height:1.8}.quiz-actions{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}.exercise-image{margin:4px 0 18px;background:#f1f3ed;border-radius:10px;padding:12px 14px}.exercise-image summary{font-size:12px;color:#5c7255;cursor:pointer;min-height:26px}.exercise-image img{display:block;max-width:100%;height:auto;margin:12px auto 0;border-radius:6px}.exercise-notes{font-size:11px;line-height:1.9;color:var(--muted);padding:12px 16px;border:1px solid var(--line);border-radius:10px}.speaking-practice{margin-top:25px;padding:19px;border:1px solid var(--line);border-radius:13px}.speaking-practice summary{font-size:15px;font-weight:550;cursor:pointer}.speaking-practice p,.speaking-practice li{font-size:13px;line-height:1.9;color:var(--muted)}.speaking-practice>label{display:block;font-size:12px;margin:18px 0 8px}.speaking-practice textarea{resize:vertical;min-height:130px;width:100%;border:1px solid #cfd9c7;border-radius:10px;padding:13px;background:white;color:var(--ink);font-size:14px;line-height:1.8}.speaking-practice small{display:block;font-size:10px;color:var(--muted);margin-top:6px}.mask-controls{display:flex;justify-content:space-between;align-items:center;gap:15px;font-size:11px;color:var(--muted);line-height:1.8;margin-bottom:15px}.mask-controls .quiet-button{font-size:11px;white-space:nowrap}.transcript-wrap{position:relative}.transcript-wrap .turn{transition:filter .2s}.stage-blur{max-height:320px;overflow:hidden;border-radius:12px;background:#f0f1e9;padding:18px}.stage-blur .turn{filter:blur(6px);user-select:none}.stage-hint .turn{filter:blur(1.9px);user-select:none}.stage-clear .turn{filter:none}.transcript-reveal{position:absolute;inset:0;border:0;width:100%;background:#faf8f220;display:flex;align-items:flex-start;justify-content:center;padding:40px 16px;color:var(--green);text-align:center}.transcript-reveal>span{display:block;background:#fffefaec;border:1px solid #d2dcc9;border-radius:13px;padding:20px;font-size:15px;line-height:1.7;box-shadow:0 8px 30px #173f3710}.transcript-reveal small{display:block;font-size:11px;color:#728167;margin-top:7px}
@media(max-width:760px){.library-intro{display:block;margin:0 0 18px}.library-intro h1{font-size:26px}.library-intro p{font-size:11px}.resume-strip{width:100%;max-width:none;margin-top:14px;padding:12px}.resume-strip strong{font-size:11px}.library-tools{grid-template-columns:1fr;gap:10px}.library-tools .search{padding:11px 12px}.jump-field select{font-size:12px}.course-row{grid-template-columns:26px minmax(0,1fr) 32px 34px;gap:7px;padding:11px 10px;min-height:70px}.row-title{font-size:14px;line-height:1.5}.row-meta{gap:5px 10px;font-size:9px;margin-top:4px}.row-number{font-size:10px}.course-row .fav-button{width:32px;font-size:21px}.row-play{height:32px;width:32px}.result-count{font-size:10px}.detail-jump{margin-bottom:18px}.quiz-question{padding:12px 11px}.quiz-question>label{font-size:14px}.quiz-group h3{font-size:18px}.answer-bank{font-size:13px;padding-left:32px}.mask-controls{font-size:10px;align-items:start}.transcript-reveal{padding-top:30px}.transcript-reveal>span{font-size:13px}.transcript-reveal small{font-size:10px}.lesson-tabs{gap:20px}.lesson-tabs .tab{font-size:12px}.exercise-image{padding:11px}.speaking-practice{padding:16px}.site-footer{padding-top:30px}}