:root{--bg:#f7f8f5;--paper:#fff;--ink:#243e35;--muted:#7d8981;--green:#176b58;--green-dark:#105744;--lime:#d6edac;--line:#e5e9e1;--serif:Georgia,'Songti SC','STSong',serif;--shadow:0 10px 30px #243e3508}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;font-size:14px;line-height:1.65}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button:disabled{opacity:.45;cursor:not-allowed}button{border:0}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #9ac997;outline-offset:4px}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:650;line-height:1.4}h1{font-size:32px;letter-spacing:-.8px}h2{font-size:20px}h3{font-size:16px}small{font-size:12px}.icon{width:20px;height:20px;vertical-align:middle;flex-shrink:0}button .icon,a .icon{pointer-events:none}p{overflow-wrap:anywhere}.sidebar{width:226px;position:fixed;inset:0 auto 0 0;padding:38px 24px 28px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;z-index:20}.brand{display:flex;gap:11px;align-items:center;padding:0 10px}.brand img{width:43px;height:43px}.brand span{font-size:23px;letter-spacing:1px;font-weight:750;line-height:1.2}.brand small{display:block;font-size:11px;letter-spacing:1.1px;font-weight:500;color:var(--muted);margin-top:5px}.nav-label{font-size:10px;color:#98a29a;letter-spacing:1px;margin:54px 15px 15px}.nav-item{height:48px;display:flex;align-items:center;gap:14px;padding:0 15px;border-radius:10px;margin:8px 0;color:#77857a;font-size:14px;font-weight:500;transition:.2s}.nav-item:hover{background:#f4f7ef}.nav-item.active{background:#edf3e8;color:#246e51;font-weight:650}.nav-item.active .icon{stroke-width:2}.nav-item b{font-size:10px;background:#d8e6cd;border-radius:50%;width:20px;line-height:20px;text-align:center;margin-left:auto}.sidebar-foot{margin-top:auto;padding:24px 12px 0;border-top:1px solid var(--line)}.leaf-circle{width:38px;height:38px;display:grid;place-items:center;background:#f1f5e9;color:#638f5a;border-radius:50%;margin-bottom:14px}.sidebar-foot strong{font-size:13px}.sidebar-foot p{font-size:11px;color:#8c988d;margin:7px 0 20px;line-height:1.8}.text-link{display:inline-flex;gap:6px;align-items:center;background:transparent;color:var(--green);font-size:12px;padding:0;line-height:1.7}.text-link .icon{width:15px;height:15px}.workspace{margin-left:226px;min-height:100vh}.topbar{height:90px;padding:0 46px;display:flex;align-items:center;justify-content:space-between}.breadcrumb{color:#95a095;font-size:12px}.breadcrumb span{padding:0 10px;color:#c3cbc0}.top-meta{display:flex;gap:21px;align-items:center}.edition{font-size:11px;color:#748476;border:1px solid #e1e6dc;border-radius:6px;padding:5px 11px;background:#fff8}.avatar{width:32px;height:32px;background:#e9ecdf;color:#63755b;border:3px solid #fff;border-radius:50%;font-size:12px;box-shadow:0 0 0 1px #e6e9df}.mobile-brand,.mobile-nav{display:none}main{max-width:1440px;margin:0 auto;padding:18px 46px 36px;outline:0}.page-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:33px;gap:20px}.eyebrow{display:block;letter-spacing:2px;font-size:9px;color:#899880;font-weight:600;margin-bottom:11px}.page-heading h1{margin-bottom:10px}.page-heading p{color:var(--muted);font-size:13px}.status-pill{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);background:#fff9;padding:6px 12px;border-radius:20px;font-size:11px;white-space:nowrap;color:#71816e}.status-pill>span{width:5px;height:5px;background:#7ba06a;border-radius:50%}.home-grid{display:grid;grid-template-columns:minmax(0,1fr) 256px;gap:27px}.hero{background:#e9efdf;border-radius:17px;min-height:342px;position:relative;overflow:hidden;display:flex;border:1px solid #e3ead9}.hero-copy{padding:30px 34px;position:relative;z-index:2}.hero-kicker{font-size:10px;color:#6c8062;display:flex;align-items:center;gap:7px;margin-bottom:18px;letter-spacing:.4px}.hero-kicker .icon{width:14px;height:14px}.hero h2{font-size:30px;font-weight:650;letter-spacing:-.4px;line-height:1.55;margin-bottom:12px}.hero p{font-size:12px;color:#7b8973;line-height:1.9}.hero-meta{display:flex;gap:18px;margin:18px 0;color:#7a8873;font-size:10px}.hero-meta .icon{height:13px;width:13px;margin-right:4px}.btn{min-height:42px;border-radius:8px;padding:11px 18px;display:inline-flex;align-items:center;justify-content:center;gap:12px;line-height:1.3;font-weight:550;font-size:12px;transition:background .18s,transform .18s}.btn:active:not(:disabled){transform:translateY(1px)}.btn .icon{width:17px;height:17px}.primary{background:var(--green);color:#fff}.primary:hover:not(:disabled){background:var(--green-dark)}.secondary{background:#fff;border:1px solid #dce4d5;color:#3c674d}.secondary:hover{background:#f2f6ec}.ghost{background:#f3f5ef;color:#61705c}.danger{background:#f7eae6;color:#a35446}.large{padding:13px 21px;min-height:47px}.mode-note{font-size:10px;color:#8b9780;display:block;margin-top:11px}.hero-art{position:absolute;width:280px;height:300px;right:0;top:33px;pointer-events:none}.art-orbit{width:280px;height:280px;border:1px solid #d4ddc5;border-radius:50%;position:absolute;left:20px;top:5px;transform:rotate(-20deg)}.art-orbit:after{content:'';position:absolute;inset:20px;border:1px dashed #d9e0ce;border-radius:50%}.phrase{position:absolute;font-family:var(--serif);font-size:20px;padding:18px 20px;white-space:nowrap;box-shadow:0 8px 20px #41513d0d;border-radius:12px}.phrase.paper{top:45px;right:26px;background:#fffdf3;transform:rotate(-8deg);color:#426d59;border:1px solid #fff}.phrase.paper i{position:absolute;border-left:13px solid transparent;border-right:13px solid transparent;border-top:18px solid #fffdf3;bottom:-11px;left:30px}.phrase.green{background:#317f65;color:#f3f9e9;right:30px;top:135px;transform:rotate(7deg);padding:15px 23px}.phrase.green span{font-size:21px;color:#cfe49d;margin-left:18px}.audio-disc{position:absolute;top:213px;left:55px;display:grid;place-items:center;width:91px;height:45px;border-radius:40px;background:#d3e2c0;transform:rotate(-5deg);border:1px solid #c4d5af}.wave{display:flex;gap:4px;align-items:center}.wave i{width:3px;height:12px;background:#71935f;border-radius:4px}.wave i:nth-child(2n){height:20px}.wave i:nth-child(3n){height:27px}.art-star{position:absolute;color:#92aa70}.star-one{top:7px;right:55px;font-size:30px}.star-two{bottom:17px;right:43px;font-size:35px}.tiny-note{position:absolute;bottom:10px;left:20px;font-family:var(--serif);font-style:italic;font-size:11px;color:#91a180;transform:rotate(-9deg)}.section-heading{display:flex;align-items:center;justify-content:space-between;margin:30px 0 16px;gap:10px}.section-heading h2{font-size:17px}.section-heading a{display:flex;gap:5px;align-items:center;font-size:11px;color:#81917b}.section-heading .icon{width:14px;height:14px}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.lesson-card{background:#fff;border:1px solid var(--line);border-radius:12px;text-align:left;padding:19px 18px;transition:.2s;box-shadow:var(--shadow);min-height:191px}.lesson-card:hover{transform:translateY(-4px);box-shadow:0 10px 25px #243e3510;border-color:#bed0b4}.lesson-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:21px}.unit-tag{font-size:9px;letter-spacing:1px;color:#7c8d72;background:#f0f4e9;padding:4px 7px;border-radius:4px}.tint-1 .unit-tag{color:#998567;background:#f9f3e8}.tint-2 .unit-tag{color:#7c89a1;background:#eef2f7}.tint-3 .unit-tag{color:#92819d;background:#f2eef5}.lesson-small-icon{color:#adb9a4;width:18px;height:18px}.lesson-card h3{font-size:15px;margin-bottom:8px}.lesson-card p{font-size:11px;color:#8d9888;line-height:1.85;min-height:40px}.lesson-bottom{border-top:1px solid #eff1eb;padding-top:15px;margin-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:9px;color:#85917c}.lesson-bottom span .icon{height:12px;width:12px;margin-right:3px}.lesson-bottom>.icon{width:15px;height:15px}.lesson-bottom i{padding:0 5px;font-style:normal}.done-dot{font-size:9px;color:#538267;display:flex;align-items:center;gap:3px}.done-dot .icon{height:12px;width:12px}.panel{background:var(--paper);border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow)}.week-panel{padding:21px}.compact{margin:0 0 19px}.compact h2{font-size:14px}.compact>span{font-size:9px;color:#9ba58f}.week-strip{display:flex;justify-content:space-between;gap:5px;margin-bottom:22px}.day{display:flex;flex-direction:column;align-items:center;gap:9px}.day small{font-size:9px;color:#9aa591}.day>span{font-size:10px;border-radius:50%;height:24px;width:24px;display:grid;place-items:center;color:#8f9b86}.day.current>span{border:1px solid #a8bd96;color:#47724b;background:#f5f7ef}.day>span.checked{background:#226f57;color:#fff;border-color:#226f57}.day .icon{width:13px;height:13px}.week-total{display:flex;align-items:baseline;gap:8px}.week-total strong{font-family:var(--serif);font-size:42px;font-weight:400;line-height:1}.week-total>span{font-size:10px;color:#929d88}.small-leaf{margin-left:auto;color:#a9bd8c}.week-panel p{margin-top:14px;font-size:10px;line-height:1.9}.subtle{color:#8b9685;font-size:12px}.review-promo{background:#f0eee5;padding:24px 23px;border:1px solid #e9e6da;border-radius:13px;margin-top:20px}.review-icon{width:39px;height:39px;border:1px solid #d9d6c8;border-radius:11px;color:#999b77;display:grid;place-items:center;margin-bottom:24px}.review-promo .eyebrow{font-size:8px;letter-spacing:1.5px;color:#a1a18c}.review-promo h2{font-size:19px;line-height:1.6;margin-bottom:11px}.review-promo p{font-size:11px;line-height:1.9;color:#939780;margin-bottom:24px}.review-promo .btn{width:100%;justify-content:space-between;background:transparent;border-color:#d5d7c7;font-size:11px}.source-note{display:flex;align-items:center;gap:10px;width:100%;text-align:left;padding:20px 4px;background:transparent;font-size:10px;color:#8d9b82}.source-note>span{flex:1}.source-note .icon{width:16px;height:16px;color:#a9b39f}.source-note small{font-size:9px;color:#a4ad9d}.path-panel{border:1px solid var(--line);border-radius:12px;padding:21px 24px;margin-top:27px;background:#fff5}.path-panel .eyebrow{font-size:8px;margin-bottom:6px}.path-panel h2{font-size:15px}.path-steps{display:flex;justify-content:space-between;align-items:center;gap:7px;margin-top:20px;color:#76876c;font-size:11px}.path-steps b{font-family:var(--serif);font-size:19px;font-weight:400;color:#b3c09e;margin-right:6px}.path-steps i{font-style:normal;color:#c3ceba}.site-footer{display:flex;justify-content:space-between;gap:16px;padding:20px 46px 25px;max-width:1440px;margin:auto;color:#aab1a4;font-size:10px}.site-footer button{font-size:10px;background:transparent;color:inherit}.library-toolbar{display:flex;justify-content:space-between;align-items:center;margin-top:16px;gap:15px}.search-field{width:320px;display:flex;align-items:center;gap:10px;border:1px solid #dfe6d7;background:#fff;border-radius:9px;padding:9px 14px;color:#9aa78b}.search-field input{min-width:0;border:0;background:transparent;outline:0;color:var(--ink);width:100%;font-size:12px}.search-field input::placeholder{color:#a2ab99}.unit-filters{display:flex;gap:8px;flex-wrap:wrap;margin:25px 0}.chip{font-size:11px;padding:7px 12px;border-radius:7px;background:#fff;border:1px solid var(--line);color:#819077}.chip.selected{background:#e7efdd;border-color:#baccac;color:#376844}.library-count{font-size:12px;margin-bottom:18px}.library-count span{font-size:10px;color:#97a08f}.library-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.library-grid .lesson-card{min-height:220px}.back-link{display:inline-flex;align-items:center;gap:8px;background:transparent;color:#809072;font-size:12px;padding:0;margin-bottom:20px}.back-link .icon{width:17px;height:17px}.detail-panel{max-width:730px;margin:5px auto;padding:38px 42px;background:#fff;border:1px solid var(--line);border-radius:16px}.detail-panel h1{font-size:29px;margin-bottom:12px}.detail-description{color:var(--muted);font-size:13px}.detail-facts{display:flex;gap:23px;font-size:11px;color:#849079;margin-top:18px}.detail-facts .icon{width:14px;height:14px}.scenario-box{background:#f4f6ef;border-radius:10px;padding:21px 24px;margin:28px 0}.scenario-box h3{font-size:12px;margin-bottom:8px}.scenario-box p{font-size:13px;color:#718065;line-height:1.9}.detail-panel>h3{font-size:13px}.target-list{margin:15px 0 27px}.target-list>div{display:flex;align-items:center;gap:13px;padding:14px 0;border-bottom:1px solid var(--line)}.target-list>div>span{font-family:var(--serif);font-size:20px;color:#b2bea1}.target-list p{flex:1}.target-list strong{display:block;font-family:var(--serif);font-size:20px;font-weight:400}.target-list small{display:block;font-size:11px;color:#8b9682;margin-top:3px}.icon-btn{width:34px;height:34px;display:inline-grid;place-items:center;border-radius:50%;background:#f4f6ef;color:#849377}.detail-panel>.text-link{margin-top:15px}.practice-page{max-width:1300px;margin:auto;padding:0 42px 50px}.practice-top{height:84px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.practice-top .back-link{margin:0}.practice-logo{display:flex;align-items:center;gap:8px;font-weight:650;font-size:18px}.practice-logo img{width:29px;height:29px}.practice-mode{font-size:10px;padding:4px 10px;border-radius:5px;color:#839276;background:#eaf0e2}.stepper{max-width:630px;margin:28px auto 38px;display:flex;justify-content:space-between;gap:10px}.stepper>div{display:flex;align-items:center;gap:8px;color:#a3ad98;font-size:11px;position:relative}.stepper>div:not(:last-child):after{content:'';height:1px;width:28px;background:#dde4d5;position:absolute;left:100%;margin-left:5px}.stepper span{display:grid;place-items:center;border:1px solid #dce4d3;border-radius:50%;width:25px;height:25px;font-size:10px}.stepper small{font-size:11px;white-space:nowrap}.stepper .current{color:#39734b;font-weight:600}.stepper .current span{background:var(--green);color:#fff;border-color:var(--green)}.stepper .done span{background:#e1edd7;border-color:#e1edd7;color:#648c54}.stepper .icon{width:13px;height:13px}.practice-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:35px;align-items:start}.practice-aside{padding:12px 0}.practice-aside h1{font-size:24px;line-height:1.6;margin:17px 0}.practice-aside>p{font-size:12px;color:#89957e;line-height:1.9}.target-heading{font-size:11px;margin:29px 0 12px;color:#718461}.target-pill{padding:12px 14px;background:#edf2e4;border:1px solid #e2e9d8;border-radius:8px;margin-bottom:10px}.target-pill strong{font-family:var(--serif);font-weight:400;font-size:18px;display:block}.target-pill small{display:block;color:#8c9a7d;font-size:10px;margin-top:2px}.gentle-note{display:flex;gap:10px;color:#9aa68c;align-items:center;font-size:11px;line-height:1.9;margin:28px 0}.conversation-panel{border:1px solid #e0e7d7;border-radius:16px;background:#fff;box-shadow:var(--shadow);overflow:hidden}.conversation-title{padding:17px 25px;border-bottom:1px solid #edf1e7;display:flex;justify-content:space-between;font-size:11px;color:#8b9780;gap:15px}.online-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:#85a96d;vertical-align:middle;margin-right:7px}.messages{padding:25px;max-height:340px;min-height:220px;overflow-y:auto;scroll-behavior:smooth}.message{display:flex;align-items:flex-start;gap:10px;margin-bottom:20px}.message small{font-size:9px;color:#a3ae98}.bot-avatar,.student-avatar{background:#eaf0df;width:31px;height:31px;display:grid;place-items:center;flex-shrink:0;border-radius:10px;color:#739b5f;font-family:var(--serif);font-size:20px;font-style:italic}.student-avatar{font-family:inherit;font-style:normal;font-size:11px;background:#e6efea;color:#4a8266}.message>div{max-width:85%}.message p{font-size:17px;line-height:1.7;background:#f4f6f0;padding:13px 17px;border-radius:0 12px 12px 12px;margin:5px 0 4px;color:#3e5943}.message.student{justify-content:flex-end}.message.student p{background:#ecf4e7;border-radius:12px 0 12px 12px;font-size:15px}.message.student small{display:block;text-align:right}.sound-button{background:transparent;color:#96a28b;font-size:10px;padding:4px 8px 0 0}.sound-button .icon{width:13px;height:13px;margin-right:3px}.composer{border-top:1px solid #edf0e7;padding:22px 25px 20px;background:#fff}.input-label{display:block;font-size:11px;margin-bottom:10px;color:#8f9b84}textarea{width:100%;resize:vertical;min-height:87px;border:1px solid #dce5d4;background:#fcfdf9;border-radius:9px;padding:14px;color:#37533c;line-height:1.7;font-size:15px;outline:none}textarea:focus{border-color:#91af7d;box-shadow:0 0 0 3px #edf3e7}textarea::placeholder{color:#b0baaa}.composer-tools{display:flex;align-items:center;gap:12px;margin-top:13px}.mic-button,.hint-button{display:flex;align-items:center;gap:5px;min-height:38px;font-size:11px;background:#f3f6ee;padding:8px 11px;border-radius:6px;color:#718864}.mic-button .icon,.hint-button .icon{width:15px;height:15px}.hint-button{background:transparent;color:#97a284;padding:6px 0}.send-button{margin-left:auto;font-size:11px;min-height:38px;padding:10px 13px}.input-help{font-size:9px;color:#a4ad99;margin-top:11px;line-height:1.8}.speech-status{font-size:11px;color:#8b997d;margin-bottom:8px}.speech-status:empty{display:none}.recording{color:#ab6755!important;background:#fcf0eb!important}.speech-status.recording{padding:5px 8px;border-radius:5px}audio{width:100%;height:36px;margin-bottom:5px}.hint-box{margin-top:15px;background:#f8f5e9;border:1px solid #ece6d5;border-radius:8px;padding:15px}.hint-box small{color:#9d956f;font-size:10px}.hint-box p{font-size:15px;color:#7a7451;margin:7px 0}.hint-box>span{font-size:10px;color:#aaa389}.feedback-panel,.result-panel{max-width:720px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:17px;padding:36px 42px}.feedback-panel>h1,.result-panel>h1{font-size:27px;margin:10px 0}.feedback-leaf,.finish-mark{width:48px;height:48px;display:grid;place-items:center;background:#edf4e3;color:#71935d;border-radius:50%;margin-bottom:20px}.feedback-leaf .icon,.finish-mark .icon{width:26px;height:26px}.feedback-panel>.eyebrow,.result-panel>.eyebrow{font-size:9px}.feedback-notice{margin:23px 0;display:flex;gap:8px;font-size:11px;color:#8a967e;align-items:flex-start;background:#f6f7f1;border-radius:8px;padding:12px}.feedback-notice .icon{width:14px;height:14px;margin-top:2px}.feedback-targets{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-bottom:24px}.feedback-targets>div{border:1px solid #e5ebde;border-radius:9px;padding:14px}.feedback-targets strong{font-family:var(--serif);font-size:17px;font-weight:400;display:block;margin-bottom:10px}.target-status{font-size:9px;padding:3px 6px;border-radius:4px;color:#9b926b;background:#f6f2e3}.target-status.used{background:#eaf2e0;color:#73935b}.feedback-targets p{font-size:10px;color:#99a28f;margin-top:9px}.feedback-item{display:flex;gap:13px;padding:18px 0;border-top:1px solid var(--line)}.feedback-item>span{width:28px;height:28px;display:grid;place-items:center;border-radius:7px;background:#f3f3e7;color:#a09b72;flex-shrink:0}.feedback-item>span .icon{width:15px;height:15px}.feedback-item h3{font-size:13px;margin-bottom:6px}.feedback-item p{font-size:12px;color:#8b977f;line-height:1.8}.suggestion{margin-top:10px;padding:11px 14px;border-radius:7px;background:#f5f7ef;font-size:15px}.answer-review{border-top:1px solid var(--line);font-size:11px;color:#87967b;padding-top:15px;margin-top:10px}.answer-review summary{cursor:pointer}.answer-review p{padding:10px 0;font-size:13px}.answer-review small{font-size:10px;color:#a1ab96}.feedback-actions{display:flex;align-items:center;gap:20px;margin-top:27px}.result-panel{text-align:center}.result-panel .finish-mark{margin:0 auto 22px;background:#e2eed2;border:6px solid #f2f6eb;width:68px;height:68px}.result-panel>p{color:#8a987d;font-size:12px;line-height:1.9}.result-stats{display:flex;justify-content:space-around;border:1px solid #e4ebda;border-radius:10px;background:#fafbf6;padding:20px 10px;margin:28px 0}.result-stats strong{font-family:var(--serif);font-size:31px;font-weight:400;display:block}.result-stats span{font-size:10px;color:#8b987c}.result-summary{text-align:left;background:#f3f6ec;border-radius:8px;padding:16px 18px;margin-bottom:23px}.result-summary h3{font-size:13px;margin-bottom:7px}.result-summary p{font-size:11px;color:#859577;margin-top:5px}.writing-box{text-align:left;margin:20px 0}.writing-box h3{font-size:13px;display:flex;gap:8px;align-items:center}.writing-box .icon{width:15px;height:15px}.writing-box h3 span{margin-left:auto;font-weight:400;font-size:10px;color:#a3ad98}.writing-box p{font-size:11px;color:#8d9b7e;margin:10px 0}.writing-box small{font-size:9px;color:#a3ae95}.review-saved{font-size:11px;color:#7f9571;margin:23px 0}.review-saved .icon{height:15px;width:15px;margin-right:5px}.result-actions{display:flex;justify-content:center;gap:12px}.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-bottom:25px}.review-card{padding:23px;background:#fff;border:1px solid var(--line);border-radius:13px;display:flex;flex-direction:column;box-shadow:var(--shadow)}.review-card-top{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:23px}.due-badge{background:#edf1dc;color:#89954f;padding:3px 7px;border-radius:5px;font-size:9px}.future-badge{font-size:9px;color:#9aa68c}.review-card h2{font-size:17px;margin-bottom:11px}.review-card>p{font-size:12px;color:#8a977e;line-height:1.9;min-height:66px}.card-answer{padding:16px 0;margin:10px 0;border-top:1px dashed var(--line);font-size:11px;color:#849675}.card-answer summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between}.card-answer .icon{width:14px;height:14px}.card-answer p{font-family:var(--serif);font-size:17px;line-height:1.8;color:#5e8051;padding:15px 0 5px}.review-card .btn{margin-top:auto}.review-card>small{font-size:9px;color:#a4ae99;margin-top:13px;text-align:center}.empty-state{text-align:center;padding:65px 30px;grid-column:1/-1}.empty-icon{width:65px;height:65px;border-radius:50%;background:#eff4e5;color:#95aa7d;display:grid;place-items:center;margin:0 auto 25px}.empty-icon .icon{width:28px;height:28px}.empty-state h2{font-size:21px;margin-bottom:12px}.empty-state p{font-size:12px;color:#8e9c7f;line-height:1.9;margin-bottom:28px}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:25px 0}.stat{padding:25px}.stat>span{font-size:11px;color:#8d9b7e}.stat strong{display:block;font-family:var(--serif);font-size:43px;font-weight:400;margin-top:12px;line-height:1}.stat small{font-family:inherit;font-size:13px;margin-left:7px;color:#a1ad92}.history-panel{padding:28px}.history-panel>h2{font-size:17px;margin-bottom:15px}.history-item{display:flex;align-items:center;gap:15px;padding:20px 0;border-bottom:1px solid var(--line)}.history-item:last-child{border-bottom:0}.history-check{display:grid;place-items:center;width:34px;height:34px;background:#f0f5e6;border-radius:50%;color:#8da572}.history-check .icon{width:17px;height:17px}.history-item>div{flex:1}.history-item strong{font-size:13px}.history-item small{display:block;font-size:10px;color:#9aa68c;margin-top:4px}.history-item>span:last-child{font-size:10px;color:#8d9b7d}.empty-inline{padding:28px 0;color:#8b997d;font-size:12px}.empty-inline p{margin-bottom:20px}.modal-backdrop{position:fixed;inset:0;background:#19352359;backdrop-filter:blur(4px);z-index:100;display:flex;align-items:center;justify-content:center;padding:22px}.modal{position:relative;max-width:490px;width:100%;max-height:90dvh;overflow-y:auto;border-radius:16px;background:#fff;padding:34px;box-shadow:0 25px 80px #153d2826}.modal-close{position:absolute;top:16px;right:16px;width:28px;height:28px}.modal-close .icon{width:15px;height:15px}.modal h2{font-size:21px;padding-right:20px;margin-bottom:20px}.modal-body{font-size:12px;line-height:1.9;color:#7c8c70}.modal-body p{margin-bottom:13px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:25px}.consent-option{display:flex;align-items:flex-start;gap:9px;padding:15px;background:#f2f6e9;border-radius:8px}.consent-option input{margin-top:5px;accent-color:var(--green);flex-shrink:0}.storage-warning{padding:12px;background:#faf0da;border:1px solid #ebdebc;border-radius:8px;margin-bottom:20px;font-size:11px;color:#a18b59;display:flex;gap:9px}.storage-warning .icon{width:16px;height:16px}#toast{position:fixed;z-index:200;bottom:30px;left:50%;transform:translate(-50%,15px);opacity:0;pointer-events:none;background:#244c3e;color:#fff;font-size:12px;padding:12px 21px;border-radius:9px;box-shadow:0 6px 30px #173c382b;max-width:min(90vw,500px);transition:.2s}#toast.show{opacity:1;transform:translate(-50%,0)}
@media(min-width:1500px){.hero-art{right:30px;transform:scale(1.08)}.hero{min-height:360px}.hero-copy{padding:35px 40px}.hero h2{font-size:34px}.home-grid{grid-template-columns:minmax(0,1fr) 290px}.hero-art{top:45px}.lesson-card{min-height:215px}}
@media(max-width:1200px){.sidebar{width:190px;padding:32px 17px}.workspace{margin-left:190px}.topbar{padding:0 28px}main{padding:15px 28px 30px}.home-grid{grid-template-columns:minmax(0,1fr) 230px;gap:20px}.hero-copy{padding:28px}.hero h2{font-size:26px}.hero-art{width:210px;right:-10px;transform:scale(.85);transform-origin:right center}.hero-art .phrase.paper{right:18px}.lesson-card{padding:16px 13px}.lesson-card h3{font-size:13px}.lesson-grid{gap:10px}.home-side .week-panel{padding:17px}.review-promo{padding:20px}.path-steps{font-size:10px}.path-panel{padding:20px}.site-footer{padding:20px 28px}.review-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:1050px){.hero-art{opacity:.5;right:-55px}.hero-copy{width:100%}.hero h2,.hero p,.hero-meta{position:relative;z-index:2}.home-grid{grid-template-columns:minmax(0,1fr)}.home-side{display:grid;grid-template-columns:1fr 1fr;gap:20px}.review-promo{margin:0}.source-note{grid-column:1/-1;padding:5px}.review-promo h2{font-size:17px}.review-icon{float:right;margin-bottom:0}.review-promo p{margin-bottom:14px}.home-side .week-panel{padding:22px}.hero-art{opacity:1;right:20px;transform:scale(1);width:280px}.practice-layout{grid-template-columns:225px minmax(0,1fr);gap:24px}.practice-page{padding:0 28px 40px}.practice-aside h1{font-size:22px}.composer-tools{gap:9px}.hint-button{font-size:10px}.composer{padding:20px}.messages{padding:20px}.path-panel{display:flex;align-items:center;justify-content:space-between;gap:15px}.path-steps{margin-top:0}.path-steps>span{display:flex;flex-direction:column;align-items:center;font-size:10px}.path-steps b{margin:0}.path-steps i{margin:0 8px}}
@media(max-width:760px){body{font-size:13px}.sidebar{display:none}.workspace{margin-left:0}.topbar{height:72px;padding:0 22px;border-bottom:1px solid #e8eddf}.breadcrumb{display:none}.mobile-brand{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:700}.mobile-brand img{width:31px;height:31px}.edition{font-size:9px;padding:4px 7px}.avatar{display:none}.top-meta{gap:8px}main{padding:28px 22px 30px}.page-heading{margin-bottom:25px}.page-heading h1{font-size:27px;letter-spacing:-.7px}.page-heading p{font-size:12px}.page-heading .eyebrow{font-size:8px;letter-spacing:1.4px}.page-heading>.status-pill{display:none}.home-grid{gap:23px}.hero{min-height:333px}.hero-copy{padding:24px}.hero h2{font-size:27px}.hero-art{width:225px;right:-48px;top:40px;transform:scale(.8);transform-origin:right top;opacity:.7}.hero-kicker{margin-bottom:15px}.hero-copy>p{max-width:230px}.hero-meta{font-size:9px;margin:19px 0}.hero-copy .btn{font-size:12px}.section-heading{margin-top:27px}.section-heading h2{font-size:16px}.lesson-grid{grid-template-columns:1fr;gap:12px}.lesson-card{min-height:auto;padding:20px;position:relative}.lesson-card-top{margin-bottom:12px}.lesson-card h3{font-size:16px}.lesson-card p{min-height:auto;font-size:11px;max-width:92%}.lesson-bottom{margin-top:16px;padding-top:12px;font-size:10px}.lesson-small-icon{width:20px;height:20px}.home-side{gap:14px}.week-panel{min-width:0}.home-side .week-panel{padding:17px 14px}.review-promo{padding:18px 14px}.compact{gap:5px}.compact h2{font-size:12px}.compact>span{font-size:8px}.week-strip{gap:2px;margin-bottom:23px}.day{gap:7px}.day>span{width:19px;height:19px;font-size:8px}.day small{font-size:8px}.week-total strong{font-size:36px}.week-total>span{font-size:8px}.week-panel p{font-size:9px}.small-leaf{display:none}.review-promo h2{font-size:16px}.review-promo p{font-size:10px}.review-promo .eyebrow{font-size:7px;letter-spacing:.8px}.review-icon{display:none}.review-promo .btn{padding:9px 11px;font-size:10px}.path-panel{padding:19px;display:block}.path-panel h2{font-size:15px}.path-steps{justify-content:space-between;margin-top:18px}.path-steps>span{flex-direction:row;font-size:10px;gap:5px}.path-steps i{margin:0}.path-steps b{font-size:16px}.source-note{padding:5px 0}.mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;padding:10px 15px calc(8px + env(safe-area-inset-bottom));background:#fffffff2;backdrop-filter:blur(15px);border-top:1px solid #e4e9db;z-index:30;justify-content:space-around}.mobile-nav a{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:9px;color:#a5ad9b;min-width:56px}.mobile-nav a.active{color:var(--green)}.mobile-nav .icon{width:20px;height:20px}.site-footer{padding:12px 22px 100px;font-size:8px;display:block;text-align:center}.site-footer button{font-size:8px;display:block;margin:6px auto}.library-toolbar{display:block}.library-toolbar>.subtle{display:none}.search-field{width:100%}.unit-filters{margin:21px 0;gap:7px}.chip{font-size:10px;padding:6px 9px}.library-count{font-size:11px}.library-count span{display:block;margin-top:4px;font-size:9px}.library-grid{grid-template-columns:1fr}.library-grid .lesson-card{min-height:auto}.detail-panel{padding:25px 21px;margin-top:0}.detail-panel h1{font-size:25px}.scenario-box{padding:17px}.detail-panel>.btn{width:100%}.detail-facts{gap:17px}.practice-page{padding:0 17px 30px}.practice-top{height:68px}.practice-top .back-link{font-size:10px}.practice-logo{font-size:16px}.practice-logo img{width:25px;height:25px}.practice-mode{font-size:8px}.stepper{margin:20px 0 25px;gap:0}.stepper>div{flex-direction:column;gap:5px;flex:1}.stepper small{font-size:9px}.stepper>div:not(:last-child):after{width:38%;left:81%;top:12px;margin:0}.stepper span{width:25px;height:25px}.practice-layout{display:flex;flex-direction:column;gap:20px}.practice-aside{padding:0 3px;width:100%}.practice-aside h1{font-size:23px;margin:10px 0}.practice-aside>p{font-size:11px}.practice-aside .unit-tag{font-size:8px}.target-heading{margin:17px 0 8px;font-size:10px}.target-pill{display:inline-flex;vertical-align:top;flex-direction:column;margin-right:6px;padding:8px 12px;max-width:100%}.target-pill strong{font-size:16px}.target-pill small{font-size:9px}.gentle-note{display:none}.practice-aside>.text-link{display:none}.conversation-panel{width:100%;border-radius:13px}.conversation-title{padding:14px 16px;font-size:10px}.messages{padding:18px 15px;max-height:300px;min-height:160px}.message p{font-size:16px;padding:11px 13px}.message>div{max-width:calc(100% - 40px)}.composer{padding:17px 15px}.composer-tools{gap:7px;flex-wrap:wrap}.mic-button{font-size:10px;padding:7px 9px}.hint-button{font-size:10px;gap:4px}.send-button{font-size:10px;padding:9px 10px;gap:5px}.send-button .icon{width:14px;height:14px}.input-help{font-size:8px}.input-label{font-size:10px}.feedback-panel,.result-panel{padding:27px 21px;border-radius:13px}.feedback-panel>h1,.result-panel>h1{font-size:23px}.feedback-notice{font-size:10px}.feedback-targets{gap:10px}.feedback-targets>div{padding:12px 10px}.feedback-targets strong{font-size:15px}.feedback-actions{flex-direction:column;align-items:stretch;gap:18px}.feedback-actions>.text-link{justify-content:center}.feedback-actions .btn{font-size:12px}.result-actions{flex-direction:column}.result-summary p{font-size:10px}.result-stats strong{font-size:28px}.result-stats span{font-size:9px}.review-grid{grid-template-columns:1fr}.review-card{padding:22px}.review-card>p{min-height:auto}.review-card-top{margin-bottom:15px}.empty-state{padding:45px 23px}.empty-state h2{font-size:19px}.stats-row{gap:9px}.stat{padding:18px 12px}.stat>span{font-size:9px}.stat strong{font-size:32px}.stat small{font-size:11px}.history-panel{padding:20px}.history-item{gap:10px;flex-wrap:wrap}.history-item strong{font-size:12px}.history-item>span:last-child{font-size:9px}.history-check{width:27px;height:27px}.modal{padding:29px 23px}.modal h2{font-size:19px}.modal-body{font-size:11px}.modal-actions .btn{font-size:11px}#toast{bottom:95px;font-size:11px}.storage-warning{font-size:10px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.result-targets{text-align:left;margin:28px 0}.result-targets>h3{font-size:16px;margin-bottom:8px}.result-targets .feedback-targets{margin-top:16px}
