:root{--ink:#243e37;--muted:#68756e;--line:#e0e6db;--paper:#fff;--bg:#f5f6f0;--green:#284e42;--lime:#d9edae;--orange:#f8e7cc;--red:#9d4635;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer;border:1px solid var(--line);background:white;color:var(--ink);border-radius:12px;padding:12px 18px;min-height:46px;font-weight:650}button:hover{filter:brightness(.97)}button:disabled{opacity:.45;cursor:not-allowed}button.primary{background:var(--green);color:white;border-color:var(--green)}button.lime{background:var(--lime);border-color:var(--lime);color:#233e2e}button.subtle{background:transparent}button.small{padding:8px 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60px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:34px;font-size:13px;color:var(--muted)}.connection{display:flex;gap:6px;align-items:center}.dot{width:7px;height:7px;border-radius:50%;background:#63925d;display:inline-block}.dot.offline{background:#c5833e}.eyebrow{font-size:11px;letter-spacing:2px;text-transform:uppercase;color:#758467;font-weight:700;margin-bottom:10px}.heading-row,.row{display:flex;justify-content:space-between;align-items:center;gap:16px}.heading-row{margin-bottom:26px}.heading-row p{margin:0;color:var(--muted);font-size:14px}.tag{display:inline-flex;align-items:center;border-radius:20px;padding:6px 10px;background:#eef3e5;color:#567046;font-size:12px;line-height:1.3;gap:5px}.tag.orange{background:#fff0da;color:#956727}.tag.gray{background:#eff0ed;color:#677167}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(250px,1fr);gap:22px}.hero{background:var(--green);color:white;border-radius:23px;padding:31px;position:relative;overflow:hidden;min-height:280px;display:flex;flex-direction:column;justify-content:space-between}.hero:after{content:'a';position:absolute;right:5px;bottom:-68px;font-size:260px;font-family:Georgia,serif;font-style:italic;opacity:.05;pointer-events:none}.hero .eyebrow{color:#bed3a3}.hero h2{font-size:31px;margin-bottom:13px;max-width:430px}.hero p{color:#d3dfd6;font-size:14px;max-width:410px}.hero .row{position:relative;z-index:1}.hero-meta{font-size:12px;color:#d3dfd6}.card{background:white;border:1px solid var(--line);border-radius:19px;padding:23px;margin-bottom:20px}.card h3{margin-bottom:10px}.card.tight{padding:18px}.card.no-margin{margin-bottom:0}.section-title{display:flex;justify-content:space-between;align-items:center;margin:30px 0 14px}.section-title h2{font-size:19px;margin:0}.section-title span{color:var(--muted);font-size:12px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:22px 0}.stat{background:#fff;border:1px solid var(--line);border-radius:15px;padding:19px}.stat strong{display:block;font-size:28px;line-height:1.4;font-weight:650;margin:5px 0}.stat small{font-size:12px}.taskrow{display:flex;gap:14px;align-items:center;padding:16px 0;border-bottom:1px solid #edf0e8}.taskrow:last-child{border:0}.tasknum{font:italic 25px Georgia,serif;color:#829771;width:30px}.taskrow p{font-size:13px;color:var(--muted);margin:3px 0 0}.taskrow strong{font-size:15px}.grow{flex:1}.timeline{border-left:1px solid #d5dfc9;margin-left:7px;padding-left:19px}.timeline div{position:relative;margin:20px 0}.timeline div:before{content:'';position:absolute;left:-24px;top:5px;width:9px;height:9px;border-radius:50%;background:#9eb783;border:2px solid white}.timeline p{font-size:12px;margin:4px 0;color:var(--muted)}.notice{padding:13px 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.weak{background:#fae9d8;color:#8b5b28}.empty{text-align:center;padding:40px 20px;color:var(--muted)}.empty h2{color:var(--ink)}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}table{border-collapse:collapse;width:100%;font-size:13px}th,td{padding:13px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}th{background:#eff3e8;white-space:nowrap}pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px;background:#f5f6f2;padding:14px;border-radius:10px}.progressbar{height:5px;border-radius:5px;background:#e1e7d9;overflow:hidden;margin:15px 0 25px}.progressbar span{display:block;height:100%;background:#8ba764}.study-wrap{max-width:700px;margin:auto}.study-card{text-align:center;padding:35px 34px 27px;min-height:400px}.study-card h2.word{font-size:43px;letter-spacing:-.5px;margin:22px 0 10px}.study-card .prompt{font-size:21px;line-height:1.8;margin:24px 0}.study-card input{text-align:center;font-size:21px;margin:10px 0}.study-card textarea{text-align:left}.study-card .answerbox{background:#f1f5e9;border-radius:14px;text-align:left;padding:21px;margin:19px 0}.answerbox h3{font-size:21px;margin:0 0 9px}.answerbox p{font-size:14px;margin-bottom:8px}.answerbox p:last-child{margin-bottom:0}.rating-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:18px}.rating-grid button{padding:12px 5px;font-size:14px}.rating-grid small{display:block;font-size:11px;font-weight:400;margin-top:5px;color:inherit}.rating-grid button:first-child{background:#f8e8db;color:#8a5335}.rating-grid button:nth-child(3){background:#e6eddb}.rating-grid button:last-child{background:var(--green);color:#fff}.session-footer{display:flex;justify-content:space-between;gap:10px;margin-top:18px}.session-footer button{background:transparent;font-size:13px}.result-number{font-size:67px;font-weight:700;letter-spacing:-3px;margin:18px 0 0}.audio-controls{display:flex;gap:10px;justify-content:center;align-items:center;flex-wrap:wrap}.audio-controls select{width:auto;max-width:130px}.diff{font-family:ui-monospace,monospace;font-size:25px;letter-spacing:4px}.diff .bad{color:#b04536;background:#fbdcd4;text-decoration:underline}.meter{height:10px;background:#edf1e6;border-radius:10px;overflow:hidden;margin:8px 0 5px}.meter span{height:100%;display:block;background:#a9c284}.source-item{padding:14px 0;border-bottom:1px solid var(--line)}.source-item a{font-size:14px;font-weight:600}.source-item p{font-size:12px;margin:7px 0 0;color:var(--muted)}.checks label{display:flex;align-items:center;gap:9px}.modal-back{position:fixed;inset:0;background:#142b2466;z-index:90;display:flex;align-items:center;justify-content:center;padding:20px}.modal{width:100%;max-width:620px;max-height:90vh;overflow:auto;background:var(--bg);border-radius:21px;padding:25px}.modal .close{float:right}.nowrap{white-space:nowrap}details{margin:14px 0;font-size:13px}summary{cursor:pointer;padding:10px 0;font-weight:650}details p{margin:8px 0}#toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);background:#263e36;color:white;padding:14px 22px;border-radius:12px;z-index:200;max-width:90%;box-shadow:0 6px 25px #0002;display:none;font-size:14px;line-height:1.6}#toast.show{display:block}.brand-mobile{display:none}.saved-indicator{font-size:11px;color:#6c8062}.footnote{font-size:12px;color:var(--muted);margin:20px 0;line-height:1.8}audio{max-width:100%;height:40px}.backup-reminder{border-left:3px solid #9db478}.recordlist{max-height:400px;overflow:auto}.stack{display:grid;gap:12px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
@media(min-width:1450px){.main{padding-top:36px}.hero{min-height:300px}}
@media(max-width:1050px){.app-shell{grid-template-columns:180px 1fr}.sidebar{padding:28px 16px}.main{padding:24px}.dashboard-grid{grid-template-columns:1.4fr 1fr}.hero{padding:24px}.hero h2{font-size:28px}.stat{padding:15px}}
@media(max-width:760px){.app-shell{display:block}.sidebar{position:fixed;bottom:0;top:auto;height:auto;width:100%;z-index:40;padding:4px 5px calc(4px + env(safe-area-inset-bottom));background:#f9faf6ed;backdrop-filter:blur(12px);border-right:0;border-top:1px solid var(--line)}.sidebar>.brand,.sidebar-foot{display:none}.nav{display:flex;justify-content:space-around;gap:0;margin:0}.nav button{display:flex;flex-direction:column;gap:4px;align-items:center;justify-content:center;padding:7px 4px;min-width:0;width:20%;font-size:10px;border-radius:9px;min-height:54px}.nav svg{width:21px;height:21px}.brand-mobile{display:flex;gap:7px;align-items:center;font-weight:750;font-size:18px;color:var(--ink)}.brand-mobile img{width:28px}.main{padding:19px 18px 105px}.topbar{margin-bottom:26px;font-size:11px}.topbar .desktop-only{display:none}.heading-row{margin-bottom:21px;align-items:flex-start}.heading-row h1{font-size:27px}.heading-row p{font-size:12px}.heading-row>.tag{max-width:116px;font-size:10px}.dashboard-grid{display:flex;flex-direction:column;gap:17px}.hero{min-height:270px;padding:24px}.hero h2{font-size:28px}.hero p{font-size:13px;line-height:1.85}.hero .row{gap:7px}.hero-meta{font-size:11px}.hero button{padding:12px 15px}.stat-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin:18px 0}.stat{padding:15px 17px}.stat strong{font-size:25px}.card{padding:20px;border-radius:16px}.card.no-margin{margin-bottom:0}.wordlist{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.study-card{padding:25px 18px;min-height:370px}.study-card h2.word{font-size:38px}.study-card .prompt{font-size:19px}.study-card input{font-size:19px}.rating-grid{grid-template-columns:repeat(2,1fr);gap:9px}.rating-grid button{padding:13px 8px}.rating-grid small{display:inline;margin-left:5px}.session-footer{gap:4px;flex-wrap:wrap}.session-footer button{padding:10px;font-size:12px}.section-title{margin-top:23px}.timeline{display:flex;gap:12px;border-left:0;padding-left:0;flex-wrap:wrap}.timeline div{flex:1;min-width:75px;border-top:2px solid #dce7ce;padding-top:10px;margin:12px 0 0}.timeline div:before{display:none}.timeline strong{font-size:12px}.timeline p{font-size:10px}.modal-back{padding:12px}.modal{padding:19px}#toast{bottom:90px}.actions>*{flex-grow:1}.row.wrap{flex-wrap:wrap}.table-wrap{max-width:100%}.source-item a{overflow-wrap:anywhere}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.brand{white-space:nowrap;flex-wrap:wrap;gap:8px}.brand small{width:100%;padding-left:45px}.heading-row>.tag{flex-shrink:0}.hero .lime{flex-shrink:0}@media(max-width:360px){.heading-row>.tag{display:none}.hero .row{align-items:flex-start;flex-direction:column;gap:12px}}

@media(min-width:761px){.nav button{white-space:nowrap;font-size:14px;padding:12px 8px;gap:9px}}

.dictionary-full{white-space:pre-line;overflow-wrap:anywhere}.coverage-summary{line-height:1.8}

.momo-badges{display:flex;flex-wrap:wrap;gap:5px;margin-top:6px}.momo-badges .tag{font-size:11px}