:root{font-family:"Microsoft YaHei UI","Segoe UI",sans-serif;color:#273e36;background:#f7f8f4;font-size:14px;--green:#38634f;--muted:#8b9690;--line:#e6eae4}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit}button:disabled{opacity:.5;cursor:wait}button,a,input,select,textarea{outline-offset:4px}button{border:0;background:transparent}a{text-decoration:none;color:inherit}.app{display:grid;grid-template-columns:244px minmax(320px,1fr) 284px;height:100dvh;max-width:1800px;margin:auto}#sidebar{padding:30px 20px 20px;border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;background:#f0f3ed}.brand{display:flex;align-items:center;gap:10px;margin-bottom:38px}.logo{width:44px;height:44px;border-radius:12px;flex:none}.brand strong{font:600 26px Georgia;letter-spacing:-1px}.brand strong span{display:block;font:11px "Microsoft YaHei UI",sans-serif;letter-spacing:2px;color:#7f8e82;margin-top:5px}.new{background:var(--green);color:white;padding:13px;border-radius:12px;text-align:left;margin-bottom:28px}.section-label{font-size:11px;color:var(--muted);letter-spacing:1px;padding:0 9px;margin-bottom:13px}#chats{overflow:auto;flex:1}#chats button{display:block;width:100%;text-align:left;padding:12px 10px;border-radius:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#6b7970;margin-bottom:5px}#chats button.active{background:#e1e8dc;color:#30533e}#chats button:hover{background:#e6ece2}.aside-bottom>button{display:block;font-size:12px;padding:10px 4px;color:#69796c}.aside-bottom small{font-size:10px;color:#98a397;display:block;margin-top:12px}.mini-card{padding:16px 13px;border:1px solid #dde5d8;border-radius:12px;font-size:12px;line-height:1.9;margin:15px 0}.mini-card span{color:#8a9989}main{min-width:0;display:flex;flex-direction:column;background:#fcfcf9}header{height:88px;flex-shrink:0;padding:0 35px;display:flex;align-items:center;border-bottom:1px solid var(--line);gap:13px}header strong{font-weight:500}.status{display:block;font-size:10px;color:#94a195;margin-top:7px}.status i{display:inline-block;width:5px;height:5px;background:#83a482;border-radius:50%;margin-right:5px}.badge{margin-left:auto;padding:7px 12px;font-size:11px;border:1px solid #dce5d9;border-radius:20px;color:#71846d}.icon{font-size:24px;padding:4px 8px}#menu{display:none}.workspace{min-height:0;display:flex;flex:1;flex-direction:column}.conversation{overflow:auto;flex:1;min-height:0;padding:30px max(30px,calc((100% - 700px)/2));scroll-behavior:smooth}.welcome{padding-top:clamp(25px,7vh,90px)}.eyebrow{font-size:9px;letter-spacing:2.5px;color:#8b9b87;font-weight:600}h1{font-size:clamp(32px,3.4vw,49px);font-weight:500;letter-spacing:2px;line-height:1.5;margin:25px 0 17px}h1>span{color:#9eb38f}.welcome p{font-size:13px;color:#899287;line-height:2}.suggestions{display:flex;flex-wrap:wrap;gap:9px;margin:30px 0}.suggestions button{font-size:12px;border:1px solid #e2e8dd;border-radius:10px;padding:12px;background:#fff}.suggestions button:hover{border-color:#8ca582;background:#f2f6ed}.welcome-note{display:flex;align-items:center;gap:10px;font-size:10px;color:#9aa391;margin-top:45px}.welcome-note span{display:inline-flex;align-items:center;justify-content:center;border:1px solid #e2e8da;border-radius:50%;width:29px;height:29px;font-size:11px;color:#7d916d}.welcome-note b{font-weight:400}.message{margin:8px 0 28px;line-height:1.95;font-size:15px;white-space:pre-wrap;overflow-wrap:anywhere}.message.user{background:#ebf0e5;padding:15px 20px;border-radius:17px 17px 4px 17px;max-width:86%;margin-left:auto}.message.assistant{padding:0 5px}.speaker{display:flex;gap:9px;align-items:center;margin:20px 0 9px;color:#899681;font-size:10px}.speaker img{width:30px;height:30px;border-radius:8px;flex:none}.composer-area{padding:10px max(28px,calc((100% - 700px)/2)) 23px}.composer{background:white;border:1px solid #dce4d7;border-radius:17px;box-shadow:0 7px 25px #324a2910;padding:16px 18px 11px}.composer textarea{width:100%;resize:none;border:0;background:transparent;font-size:13px;line-height:1.7;outline:none;color:#354d40}.composer textarea::placeholder{color:#a1aa9a}.composer-bottom{display:flex;align-items:center;justify-content:space-between}.composer-bottom>span{font-size:10px;color:#a4ad9f}#send{background:var(--green);color:white;width:35px;height:35px;border-radius:11px;font-size:23px}.footnote{display:flex;justify-content:space-between;font-size:9px;color:#a3ab9b;gap:8px;margin:12px 3px 0}#notice{font-size:12px;line-height:1.7;color:#7d8a73;margin-bottom:8px}#notice.error,#settingsError{color:#b14848}.preferences{padding:40px 25px;background:#f7f8f3;border-left:1px solid var(--line);overflow:auto}.preferences h2{font-size:23px;font-weight:500;margin:15px 0 9px}.preferences>p{font-size:11px;color:#929d8b;margin-bottom:35px}.control{padding:24px 0;border-top:1px solid var(--line)}.control label{font-size:12px;font-weight:500}.control-title{display:flex;align-items:center;justify-content:space-between}output{font:33px Georgia;color:#4e724c}output span{font-size:14px;margin-left:2px}input[type=range]{width:100%;accent-color:#648557;margin:18px 0 8px}.range-label{display:flex;justify-content:space-between;font-size:9px;color:#a0a796}.ratio-preview{font-size:12px;line-height:1.9;background:#edf1e6;border-radius:10px;padding:14px;margin:18px 0 9px}.control small{font-size:9px;line-height:1.7;color:#9aa38e}select{width:100%;border:1px solid #dce3d5;border-radius:9px;padding:11px 8px;background:transparent;color:#65745b;font-size:11px;margin-top:15px}.pacing-note{display:flex;align-items:center;gap:12px;color:#8b9b7c;margin:22px 0;font-size:11px;line-height:1.9}.pacing-note>span{font-size:30px}#mobileSettings{font-size:11px;text-decoration:underline;color:#778970}.save-status{font-size:10px;color:#87967b;margin-top:14px}dialog{border:1px solid #e2e7dc;border-radius:20px;padding:27px;width:min(540px,94vw);max-height:90dvh;color:#354c3d;background:#fcfcf8;box-shadow:0 24px 90px #21322130}dialog::backdrop{background:#263a3055;backdrop-filter:blur(3px)}.dialog-head{display:flex;justify-content:space-between;align-items:start;margin-bottom:20px}.dialog-head h2{font-weight:500;font-size:23px;margin:10px 0}form>label{display:block;font-size:12px;margin:15px 0 8px}form textarea,form input[type=password]{width:100%;border:1px solid #dce4d7;background:white;padding:12px;border-radius:10px;line-height:1.8;resize:vertical;color:#354c3d}.muted{color:#98a08f;font-size:10px;margin-left:5px}.help{color:#8c9583;font-size:10px;line-height:1.9}.switch-row{display:flex;align-items:center;gap:7px;padding:12px 0}.switch-row input{accent-color:var(--green)}.primary{width:100%;background:var(--green);color:white;padding:13px;border-radius:11px;margin-top:15px}#settingsError{font-size:12px;margin-top:10px}#explainSelection{position:fixed;z-index:3;bottom:190px;left:50%;transform:translateX(-50%);border-radius:20px;background:var(--green);color:#fff;padding:11px 18px;box-shadow:0 5px 25px #0002}blockquote{margin:0;padding:13px;background:#edf1e6;border-radius:10px;font-size:14px;overflow-wrap:anywhere}#explanation{white-space:pre-wrap;line-height:1.9;font-size:14px}button:focus-visible{outline:2px solid #648557}@media(min-width:1600px){.app{grid-template-columns:260px minmax(400px,1fr) 310px}}@media(max-width:1120px){.app{grid-template-columns:205px minmax(320px,1fr)}.preferences{display:none}header{padding:0 25px}.badge{font-size:10px}}@media(max-width:650px){.app{display:block;height:100dvh}main{height:100dvh}#sidebar{display:none;position:fixed;inset:0 auto 0 0;width:260px;z-index:5;box-shadow:10px 0 40px #23332425}#sidebar.open{display:flex}#menu{display:block;font-size:18px}header{height:72px;padding:0 16px}header strong{font-size:13px}.badge{padding:7px 9px}.conversation{padding:25px 22px}.welcome{padding-top:30px}h1{font-size:36px}.suggestions{gap:8px}.suggestions button{font-size:11px;padding:11px 9px}.welcome-note{margin-top:30px}.composer-area{padding:7px 14px 16px}.composer{padding:13px 14px 9px}.footnote{font-size:9px}.footnote>span{display:none}.message{font-size:14px}.message.user{max-width:95%}dialog{padding:21px}.preferences.mobile-open{display:block;position:fixed;inset:72px 0 0;z-index:4;padding:24px;background:#f7f8f3}.welcome p{font-size:12px}}

.pace-button,#closePace{display:none}@media(max-width:1120px){.pace-button{display:block;margin-left:auto;font-size:11px}.badge{margin-left:0}.preferences.mobile-open{display:block;position:fixed;inset:88px 0 0 auto;width:310px;z-index:4;box-shadow:-10px 0 40px #23332425}#closePace{display:block;float:right}}@media(max-width:650px){.preferences.mobile-open{inset:72px 0 0;width:100%}header{gap:8px}.pace-button{font-size:10px}header .status{font-size:9px}}
body{overflow:hidden}main{min-height:0}

#sidebarBackdrop{display:none}#closeSidebar{display:none}@media(max-width:650px){#sidebar.open~#sidebarBackdrop{display:block;position:fixed;inset:0;z-index:4;background:transparent;padding:0;border:0;border-radius:0}#closeSidebar{display:block;position:absolute;right:8px;top:6px;font-size:25px}}

#attach{font-size:12px;padding:8px 10px;border-radius:9px;background:#eef3e9;color:#4d6c40;margin-right:10px}.composer-bottom>span{margin-right:auto}.quick-chips{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:9px}.quick-chips button{font-size:11px;border:1px solid #dce4d7;border-radius:18px;padding:7px 12px;background:#f4f7f0;color:#4d6c40;white-space:nowrap;transition:background .12s,border-color .12s,transform .12s}.quick-chips button:hover{border-color:#8ca582;background:#e9f1e1}.quick-chips button:active{transform:scale(.95)}.attachments{display:flex;gap:9px;flex-wrap:wrap;max-height:105px;overflow:auto}.attachment{position:relative;margin-bottom:8px}.attachment img{display:block;width:76px;height:76px;object-fit:cover;border-radius:10px;border:1px solid #dce4d7}.attachment button{position:absolute;top:2px;right:2px;background:#243e33db;color:white;border-radius:50%;height:23px;width:23px;font-size:19px;line-height:1}#attachmentHint{font-size:10px;color:#7a8972;line-height:1.6;margin:3px 0 10px}.message-images{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}.chat-image{padding:0;border-radius:12px;overflow:hidden;background:#dce5d6}.chat-image img{display:block;max-width:min(240px,100%);height:160px;object-fit:contain}#imageDialog{width:fit-content;max-width:96vw;padding:12px}#imageDialog #closeImage{display:block;margin-left:auto}#fullImage{display:block;max-width:87vw;max-height:76dvh;object-fit:contain}@media(max-width:650px){.chat-image img{max-width:245px;height:140px}.composer-bottom>span{font-size:9px}.conversation{min-height:80px}}

.english-word{display:inline;padding:0 1px;font:inherit;line-height:inherit;color:inherit;border-bottom:1px dotted #b5c6a5;border-radius:3px;vertical-align:baseline}.english-word:hover,.english-word:focus{background:#e0edd0}.word-card{position:fixed;z-index:8;bottom:155px;left:50%;transform:translateX(-50%);width:min(420px,94vw);padding:19px;background:#fffef8;border:1px solid #d6e2ca;border-radius:18px;box-shadow:0 10px 55px #28401e25}.word-card>button{float:right;font-size:22px}.word-card strong{display:block;font-size:22px;max-width:85%;overflow-wrap:anywhere}.word-actions{display:flex;gap:7px;flex-wrap:wrap;margin:15px 0}.word-actions button{padding:10px;border-radius:9px;background:#eaf2e1;font-size:12px}#understandWord{background:linear-gradient(135deg,#f6b93b,#e89b1d);color:#3a2a08;font-weight:700;box-shadow:0 3px 10px #e89b1d40;transition:transform .12s ease}#understandWord:active{transform:scale(.93)}#understandWord:disabled{opacity:.6;transform:none}.coin{position:fixed;z-index:30;font-size:22px;font-weight:800;color:#e89b1d;text-shadow:0 1px 0 #fff;pointer-events:none;opacity:0}.coin.fly{animation:coin-fly .85s cubic-bezier(.2,.7,.3,1) forwards}@keyframes coin-fly{0%{opacity:0;translate:0 0;scale:.5}18%{opacity:1;scale:1.15}100%{opacity:0;translate:0 -72px;scale:.9}}#wordHelp{font-size:11px;line-height:1.7;color:#7a8b70;display:block}.playing{animation:glow 1s infinite alternate}#reward{position:fixed;z-index:12;top:100px;left:50%;transform:translateX(-50%);width:max-content;max-width:90vw;background:linear-gradient(135deg,#f6b93b,#e89b1d);color:#3a2a08;border-radius:18px;padding:16px 22px;font-size:13px;font-weight:600;box-shadow:0 8px 30px #e89b1d55,0 0 0 1px #fff8 inset;pointer-events:none}#reward.pop{animation:reward-pop .55s cubic-bezier(.2,1.4,.4,1)}@keyframes reward-pop{0%{opacity:0;translate:0 22px;scale:.6}55%{opacity:1;scale:1.12}100%{translate:0 0;scale:1}}#learningStats{padding:18px;background:#e9f0df;border-radius:12px;line-height:1.9}#coverage{font-size:12px;line-height:1.8;padding:13px 0;color:#75816c}.ledger-row{display:flex;align-items:center;gap:10px;padding:13px 0;border-bottom:1px solid #e5eadf}.ledger-row>button:first-child{font-size:16px;text-align:left;flex:1}.ledger-row>span{font-size:10px;color:#859478}.ledger-row>button:last-child{font-size:10px;color:#537448}#exportLearning{margin-top:20px;padding:10px;background:#edf2e5;border-radius:8px}@keyframes glow{from{box-shadow:0 0 0 0 #8eac7144}to{box-shadow:0 0 0 6px #8eac7100}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;scroll-behavior:auto!important}}@media(max-width:650px){.word-card{bottom:155px;padding:16px}.english-word{padding:0 2px}.ledger-row{flex-wrap:wrap}#reward{top:85px}}

/* Mobile: a stable reading layer, with a separate composer above the keyboard. */
@media(max-width:650px){
  html,body{width:100%;height:100%;overflow:hidden;overscroll-behavior:none}
  body{position:fixed;inset:0}
  .app{position:absolute;left:0;right:0;top:var(--mobile-top,0px);height:var(--mobile-height,100dvh);overflow:hidden}
  main{position:relative;height:100%;overflow:hidden}
  main>header{position:absolute;top:0;left:0;right:0;height:64px;z-index:2;background:#fcfcf9}
  .workspace{position:absolute;inset:64px 0 0;display:block;overflow:hidden}
  .conversation{position:absolute;inset:0 0 var(--composer-height,164px);min-height:0;padding:18px 20px;overflow-y:auto;overscroll-behavior-y:contain;overflow-anchor:none;scroll-behavior:auto}
  .composer-area{position:absolute;left:0;right:0;bottom:0;z-index:3;background:#fcfcf9;padding:5px 12px max(5px,env(safe-area-inset-bottom));margin:0}
  .composer{padding:9px 12px 6px;border-radius:15px}
  .quick-chips{flex-wrap:nowrap;overflow-x:auto;margin-bottom:7px;scrollbar-width:none;padding-bottom:2px}.quick-chips::-webkit-scrollbar{display:none}.quick-chips button{flex-shrink:0;font-size:11px;padding:7px 13px}
  .composer textarea{font-size:16px;line-height:1.5;min-height:24px;max-height:96px;display:block;margin:0;padding:0}
  .footnote{margin:5px 2px 0;font-size:9px}
  #notice:empty{display:none}
  #notice{font-size:10px;line-height:1.5;margin:0 2px 4px;max-height:32px;overflow:auto}
  .keyboard-open .composer-area{padding-bottom:0}
  .keyboard-open .composer{border-bottom-left-radius:0;border-bottom-right-radius:0;box-shadow:none;padding-top:7px}
  .keyboard-open .footnote,.keyboard-open #notice:not(.error),.keyboard-open #attachmentHint{display:none}
  .keyboard-open .composer-bottom>span{display:none}
  .keyboard-open .attachment img{width:44px;height:44px}
  .keyboard-open .attachments{max-height:56px}
  .keyboard-open .composer textarea{max-height:72px}
  .word-card{top:calc(var(--mobile-top,0px) + 75px);bottom:auto;max-height:calc(var(--mobile-height,100dvh) - 90px);overflow:auto}
}

/* Home navigation; chat keyboard geometry remains in the existing workspace. */
.workspace[hidden],.home-page[hidden]{display:none!important}main{position:relative}.sidebar-home{padding:10px 8px;text-align:left;font-size:13px;margin:-18px 0 12px;color:#355a46}.home-page{flex:1;min-height:0;overflow-y:auto;padding:34px max(30px,calc((100% - 720px)/2)) 28px;overscroll-behavior:contain}.home-intro h1{font-size:35px;font-weight:550;letter-spacing:0;line-height:1.5;margin:15px 0 10px}.home-intro>p{color:#778376;font-size:12px;line-height:1.9;margin-bottom:27px}.home-stats{display:grid;grid-template-columns:1fr 1fr;gap:13px}.home-stats>button{text-align:left;border:1px solid #d6ddd0;border-radius:18px;padding:21px;display:flex;flex-direction:column;min-height:162px;transition:transform .15s,box-shadow .15s}.home-stats>button:hover{transform:translateY(-2px);box-shadow:0 9px 20px #243b2510}.today-card{background:#fff1dc!important;color:#654924}.today-card>span:first-child{font-size:12px}.today-card>strong{font:48px Georgia;margin:7px 0}.today-card>span:last-child{font-size:11px}.today-card small{display:block;margin-top:9px;color:#8e7047;font-size:10px}.dictionary-card{background:#eff0fb!important;color:#414864}.dictionary-card .card-icon{font:27px Georgia;margin-bottom:12px}.dictionary-card>strong{font-size:17px;margin-bottom:10px}.dictionary-card>span:not(.card-icon){font-size:12px}.dictionary-card>small{font-size:10px;color:#7e8498;margin-top:8px}.home-data-status{font-size:11px;color:#a14d3b;line-height:1.7}.home-actions{display:flex;gap:10px;margin:19px 0 31px}.home-actions>.primary{width:auto;flex:1;margin:0;padding:15px;font-size:13px}.home-actions>button:last-child{border:1px solid #cbd8c5;border-radius:11px;padding:12px 17px;background:white;font-size:12px}.home-section-title{display:flex;align-items:center;justify-content:space-between;gap:10px}.home-section-title h2{font-size:19px;font-weight:550;margin:0 0 7px}.home-section-title p{font-size:11px;color:#8a9483;margin:0}.home-section-title>button{padding:9px 12px;border:1px solid #d3decc;border-radius:9px;background:white;font-size:11px}.category-chips{display:flex;gap:7px;overflow-x:auto;padding:18px 0 14px;scrollbar-width:thin}.category-chips button{flex-shrink:0;padding:8px 12px;border:1px solid #d9e2d3;border-radius:18px;font-size:11px;background:white;color:#718466}.category-chips button.active{background:#355d49;color:white;border-color:#355d49}.home-chat-row{display:flex;align-items:center;border:1px solid #e0e6da;border-radius:12px;background:#fff;margin-bottom:9px;padding:2px 10px 2px 3px;gap:8px}.home-chat-open{flex:1;text-align:left;min-width:0;padding:14px 12px}.home-chat-open strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px;font-weight:500;color:#324d3d}.home-chat-open span{display:block;color:#96a18d;font-size:10px;margin-top:7px}.home-chat-row>select{width:94px;flex-shrink:0;margin:0;background:#f8faf5;padding:8px;font-size:10px}.home-empty{font-size:12px;padding:22px 14px;border:1px dashed #cedbc4;border-radius:12px;color:#8a987e;line-height:1.9}.home-tip{font-size:10px;line-height:1.9;color:#97a18d;margin-top:22px}.main-nav{display:none}.home-view #paceButton{display:none}.home-view #backHome{display:none}#backHome{font-size:26px}#categoryName{width:100%;padding:13px;background:white;border:1px solid #cfdcc5;border-radius:10px;font:inherit}#categoryError{font-size:12px;color:#b14848}
@media(max-width:650px){
  .home-page{position:absolute;inset:64px 0 calc(56px + env(safe-area-inset-bottom));padding:25px 19px 24px;overflow:auto}
  .home-intro h1{font-size:29px;margin-top:12px}.home-intro>p{font-size:11px;margin-bottom:22px}.home-stats{gap:10px}.home-stats>button{padding:16px;min-height:164px;border-radius:15px}.today-card>strong{font-size:43px}.dictionary-card>strong{font-size:16px}.dictionary-card>span:not(.card-icon){font-size:11px}.dictionary-card>small{font-size:9px;line-height:1.7}.home-actions{margin:18px 0 27px;gap:8px}.home-actions>.primary{font-size:12px;padding:13px 9px}.home-actions>button:last-child{font-size:11px;padding:11px}.home-section-title h2{font-size:18px}.category-chips{padding-top:15px}.home-chat-row>select{width:82px}.home-chat-open{padding:13px 10px}.home-chat-open strong{font-size:12px}
  .main-nav{display:flex;position:absolute;left:0;right:0;bottom:0;z-index:4;height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fcfcf9;border-top:1px solid #dfe7d7;align-items:stretch;justify-content:space-around}.main-nav button{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:19px;color:#95a38b}.main-nav button span{font-size:10px}.main-nav button.active{color:#30553f;background:#f0f5e9}.workspace{bottom:calc(56px + env(safe-area-inset-bottom))}.keyboard-open .main-nav{display:none}.keyboard-open .workspace{bottom:0}.home-view #backHome{display:none}
}

.english-word[data-knowledge=known]{border-bottom-color:transparent}.english-word.mark-unknown{color:#b03c49;background:#fff0f1;border-bottom:1px dashed #b03c49}.english-word.mark-unknown:hover{background:#ffe0e4}#wordKnowledge{display:block;font-size:10px;color:#7d8875;margin-top:7px}#unknownWord{background:#fff0f1;color:#a83e49;border:1px solid #ebc3c8}.assessment-entry{width:100%;display:flex;justify-content:space-between;gap:10px;align-items:center;text-align:left;border:1px solid #d5ddcc;border-radius:12px;background:#fafbf7;padding:13px 15px;font-size:12px;margin-top:13px}.assessment-entry small{font-size:10px;color:#84917a}.assessment-dialog{width:min(740px,96vw);height:min(880px,94dvh);max-height:94dvh}.assessment-dialog[open]{display:flex;flex-direction:column;gap:0}.assessment-dialog>*{flex-shrink:0}.assessment-dialog .dialog-head{margin-bottom:9px}.assessment-dialog .dialog-head h2{font-size:21px;margin:4px 0}.assessment-summary{font-size:13px;line-height:1.7;padding:10px 12px;border-radius:10px;background:#edf2e5;margin:0 0 5px}.highlight-toggle{font-size:11px;display:flex;gap:7px;align-items:center}.highlight-toggle input{accent-color:#557847}.assessment-legend{display:flex;gap:12px;font-size:9px;margin:8px 0;color:#89947d;flex-wrap:wrap}.legend-unknown{color:#b03c49;border-bottom:1px dashed #b03c49}.legend-known{color:#273e36}.assessment-controls{display:flex;gap:12px}.assessment-controls label{flex:1;min-width:0;font-size:10px}.assessment-controls select{margin-top:4px;padding:9px;font-size:12px}#assessmentSearch{margin:8px 0 0;border:1px solid #d4deca;border-radius:9px;padding:9px 11px;width:100%;font:inherit;font-size:14px}#bookProgress{margin:5px 0;font-size:10px}.assessment-page-controls{display:flex;gap:9px;font-size:10px;align-items:center;margin:3px 0 8px}.assessment-page-controls button{padding:6px 8px;border:1px solid #d6dfcc;border-radius:7px;background:#f6f9f0}#selectionCount{margin-left:auto;color:#849178}.assessment-words{flex:1;min-height:100px;overflow:auto;display:grid;grid-template-columns:1fr 1fr;align-content:start;gap:6px;padding:2px 2px 8px}.assessment-word{display:flex;align-items:center;justify-content:space-between;gap:5px;border:1px solid #e1e6d9;border-radius:8px;padding:10px;min-height:43px}.assessment-word label{display:flex;align-items:center;gap:8px;font-size:13px;flex:1;min-width:0;overflow-wrap:anywhere;cursor:pointer}.assessment-word input{accent-color:#416b4c;flex-shrink:0}.assessment-word small{font-size:9px;color:#9aa38d}.assessment-word small[data-knowledge=unknown]{color:#b03c49}.assessment-word small[data-knowledge=known]{color:#426444}.assessment-pagination{display:flex;align-items:center;justify-content:space-between;font-size:11px;padding:8px 0}.assessment-pagination button{padding:6px;border-radius:7px;background:#f1f5e9}.assessment-batch{display:flex;gap:7px;border-top:1px solid #dfe6d6;padding-top:10px}.assessment-batch button{flex:1;border-radius:9px;padding:11px 7px;font-size:11px;background:#edf1e6}#batchKnown{background:#38634f;color:white}#batchUnknown{color:#a33f4c;background:#fff0f1}#assessmentMessage{margin:5px 0;max-height:38px;overflow:auto}.assessment-import{font-size:11px;border-top:1px solid #e3e8db;padding-top:8px}.assessment-import[open]{max-height:220px;overflow:auto}.assessment-import summary{cursor:pointer;color:#839274}.assessment-import input{max-width:100%;padding:8px;border:1px solid #d7e0cf;border-radius:8px;background:white}.assessment-import a{color:#4b6f3a;text-decoration:underline}@media(max-width:650px){.assessment-entry{flex-direction:column;align-items:flex-start;gap:5px;padding:11px 13px}.assessment-dialog{padding:15px 14px;max-height:95dvh;height:95dvh;width:96vw}.assessment-dialog .dialog-head h2{font-size:18px}.assessment-dialog .help{font-size:9px;line-height:1.6;margin:5px 0}.assessment-summary{font-size:11px}.assessment-word{padding:8px 6px}.assessment-word label{font-size:12px;gap:5px}.assessment-word small{font-size:8px}.assessment-legend{gap:8px;font-size:8px}.assessment-batch button{font-size:10px;padding:10px 5px}.assessment-controls select{font-size:11px}.assessment-words{gap:5px}.assessment-import[open]{max-height:180px}}

@media(max-width:650px){.assessment-dialog .dialog-head .eyebrow{display:none}.assessment-dialog .assessment-controls label{font-size:9px}.assessment-summary{padding:8px 10px}.assessment-dialog .dialog-head{margin-bottom:6px}}

/* Full-screen screening keeps room for the actual words, not explanatory controls. */
.assessment-dialog{height:96dvh;max-height:96dvh}.assessment-tabs{display:flex;gap:6px;margin:0 0 8px;padding:3px;background:#edf1e7;border-radius:10px}.assessment-tabs button{flex:1;padding:9px;font-size:12px;border-radius:8px;color:#87937c}.assessment-tabs button.active{background:white;color:#304c38;box-shadow:0 2px 6px #3044250c}.assessment-quick-pane{display:flex;flex-direction:column;flex:1;min-height:0}.assessment-quick-pane[hidden],#assessmentOverviewPane[hidden],#assessmentFilterLabel[hidden]{display:none!important}.assessment-search-row{display:flex;gap:8px;margin:8px 0 0}.assessment-search-row #assessmentSearch{flex:1;min-width:0;margin:0}.assessment-search-row #assessmentLetter{width:105px;margin:0;flex-shrink:0;padding:8px;font-size:11px}.assessment-page-controls{gap:5px;flex-wrap:wrap}.assessment-page-controls button{font-size:10px}.assessment-words{scrollbar-width:thin;overscroll-behavior:contain;min-height:140px}.assessment-word{min-height:45px;background:#fff;border-color:#cfd9c7;padding:10px 8px}.assessment-word label{font-size:15px;gap:8px;color:#263e30}.assessment-word input{width:17px;height:17px}.assessment-word small[data-knowledge=unassessed]{display:none}.assessment-pagination{min-height:29px;font-size:10px}.assessment-batch{padding-top:8px}.assessment-batch button{min-height:42px}.assessment-dialog>.help{margin:3px 0 7px}.assessment-summary{font-size:12px;padding:8px 10px}.assessment-import[open]{max-height:170px}.english-word.mark-unknown{color:#bc3948;background:transparent;border-bottom-color:transparent}.english-word.mark-unknown:hover{background:transparent;text-decoration:underline}.legend-unknown{color:#bc3948;border-bottom:0}#assessmentOverviewPane{flex:1;min-height:0;overflow:auto;padding:12px 2px 18px}.book-overview{display:flex;align-items:center;gap:30px;padding:16px 12px 22px;border-bottom:1px solid #e0e6d8}.book-ring{width:158px;height:158px;flex-shrink:0;border-radius:50%;padding:14px;display:flex;align-items:center;justify-content:center}.book-ring>div{width:100%;height:100%;border-radius:50%;background:#fcfcf8;display:flex;align-items:center;justify-content:center;flex-direction:column}.book-ring strong{font-size:28px;color:#31856d}.book-ring span{font-size:10px;color:#8b9782;margin-top:6px}.book-numbers{flex:1;min-width:0}.book-numbers>div{display:flex;justify-content:space-between;gap:20px;font-size:13px;padding:7px 0;color:#7a8870}.book-numbers strong{font-size:17px;color:#344e3d}.book-numbers [data-kind=known] strong{color:#31856d}.book-numbers [data-kind=unknown] strong{color:#ba474c}.letter-overview{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:16px 0}.letter-progress{display:flex;flex-direction:column;gap:9px;align-items:flex-start;padding:14px;border:1px solid #d6e0cc;border-radius:10px;background:white}.letter-progress>strong{font-size:20px;color:#38543f}.letter-progress>span{font-size:10px;color:#87957b}.letter-progress>i{display:block;width:100%;height:5px;border-radius:3px}#startQuickAssessment{margin-top:5px}
@media(max-width:650px){
 .assessment-dialog{width:100vw;max-width:100vw;height:100dvh;max-height:100dvh;margin:0;inset:0;border:0;border-radius:0;padding:12px 14px 8px;overflow:hidden}
 .assessment-dialog .dialog-head{margin:0 0 7px}.assessment-dialog .dialog-head h2{font-size:19px}.assessment-tabs{margin-bottom:6px}.assessment-tabs button{padding:8px}.assessment-summary{font-size:11px;line-height:1.6;margin-bottom:3px;padding:6px 9px}.assessment-dialog>.help{font-size:9px;line-height:1.6;margin:2px 0 5px}.assessment-controls select{padding:8px;margin-top:3px;font-size:11px}.assessment-controls label{font-size:9px}.assessment-search-row{margin-top:7px}.assessment-search-row #assessmentLetter{width:88px;padding:7px;font-size:10px}#assessmentSearch{font-size:14px;padding:8px 10px}#bookProgress{margin:4px 0;font-size:9px}.assessment-page-controls{margin-bottom:6px}.assessment-page-controls button{font-size:9px;padding:7px}.assessment-word label{font-size:14px;gap:6px}.assessment-word{min-height:44px;padding:8px 6px}.assessment-word small{font-size:8px}.assessment-word input{width:17px;height:17px}.assessment-words{min-height:80px}.assessment-batch button{font-size:10px;min-height:42px}.assessment-import{padding-top:6px;font-size:10px}.assessment-import[open]{max-height:150px;overflow:auto}#assessmentMessage{font-size:9px}.book-overview{gap:22px;padding:10px 3px 18px}.book-ring{width:145px;height:145px;padding:12px}.book-ring strong{font-size:27px}.book-numbers>div{font-size:12px;padding:7px 0;gap:12px}.book-numbers strong{font-size:16px}.letter-overview{grid-template-columns:repeat(2,1fr);gap:8px}.letter-progress{padding:12px}.letter-progress>strong{font-size:21px}
.mem-block{border:1px solid #d5e0c9;border-radius:14px;padding:15px 17px;margin:0 0 15px;background:#f7faf3}
.mem-block:last-of-type{margin-bottom:2px}
.mem-block h3{margin:0 0 11px;font-size:15px;font-weight:500;color:#2f4b3a;letter-spacing:.3px}
.mem-block>textarea{width:100%;border:1px solid #cfdac4;background:#fff;padding:12px;border-radius:10px;line-height:1.8;resize:vertical;color:#354c3d;font-size:13px}
.mem-block>textarea::placeholder{color:#b0bcab}
.mem-block>.help{margin:9px 0 0}
.mem-block .switch-row{padding:9px 0 2px}
@media(max-width:650px){.mem-block{padding:13px 13px;margin-bottom:12px}.mem-block h3{font-size:14px;margin-bottom:9px}.mem-block>textarea{font-size:16px}}
}
/* Progress dashboard and a roomier mobile conversation. */
.progress-card{margin:22px 0;padding:22px;border:1px solid #dedbea;border-radius:18px;background:#fff;box-shadow:0 4px 22px #49396708}.progress-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.progress-heading h2{font-size:20px;margin:7px 0}.progress-heading>span{font-size:11px;color:#8b829d}.progress-totals{display:flex;justify-content:space-between;margin:18px 0}.progress-totals>div{display:flex;flex-direction:column;gap:6px}.progress-totals strong{font-size:32px;color:#7651a3;font-weight:600}.progress-totals span{font-size:11px;color:#8a8194}.progress-chart{height:180px;display:flex;gap:10px;padding-top:12px}.progress-column{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:7px;font-size:11px;color:#81718f}.progress-track{height:128px;width:100%;max-width:32px;display:flex;align-items:flex-end;background:#f6f2fa;border-radius:7px;overflow:hidden}.progress-track i{width:100%;display:block;background:linear-gradient(#d0abea,#8256b3);border-radius:7px 7px 0 0;min-height:0}.progress-column small{font-size:10px;white-space:nowrap}.home-view #menu{display:none}
@media(max-width:650px){
 main>header{height:54px;padding:0 10px;gap:5px}header strong{font-size:13px;white-space:nowrap}.status{display:none}header>div{min-width:0;flex:1}#modeBadge{font-size:0;padding:8px 10px;white-space:nowrap;flex-shrink:0}#modeBadge:after{content:'设置';font-size:12px}#paceButton{padding:8px 7px;font-size:12px;white-space:nowrap;flex-shrink:0}#menu,#backHome{padding:4px 7px;flex-shrink:0}
 .workspace{top:54px;bottom:0}.home-page{top:54px}.conversation{padding:12px 16px}.message{margin-bottom:20px;line-height:1.8}.speaker{margin:14px 0 7px}.composer-area{padding-top:4px}.composer{padding:7px 11px 5px;border-color:#becdb9;background:white}.composer textarea{min-height:24px}.composer-bottom{margin-top:3px}.composer-bottom>span,.footnote{display:none}#notice:not(.error){display:none}#attach{padding:6px 10px}#send{height:32px;width:34px}.preferences.mobile-open{top:54px}
 #sidebar{width:min(300px,85vw);padding:22px 16px 10px}.brand{margin-bottom:18px}.brand strong{font-size:25px}.sidebar-home{margin:0 0 8px;padding:8px}.new{margin-bottom:16px;padding:12px}.section-label{margin-bottom:7px;font-size:12px;color:#52634f;font-weight:600}#chats{min-height:140px;padding:5px;background:#fff;border:1px solid #d5dfce;border-radius:12px}#chats button{padding:13px 10px;margin:0 0 3px;color:#354b38;font-size:13px;line-height:1.4}.mini-card{display:none}.aside-bottom{flex-shrink:0;padding-top:6px}.aside-bottom>button{padding:7px 4px;font-size:11px;display:inline-block;margin-right:5px}.aside-bottom>small{display:none}
 .home-intro h1{font-size:26px}.home-intro>p{margin-bottom:18px}.home-stats>button{min-height:135px;padding:14px}.progress-card{padding:17px 14px;margin-top:20px}.progress-heading h2{font-size:18px}.progress-totals strong{font-size:29px}
}

/* Keep navigation reachable; only the keyboard temporarily dismisses it. */
@media(max-width:650px){
 .main-nav{height:calc(44px + env(safe-area-inset-bottom))}.main-nav button{flex-direction:row;gap:6px;font-size:17px;min-height:44px}.main-nav button span{font-size:12px}
 .workspace{bottom:calc(44px + env(safe-area-inset-bottom))}.home-page{bottom:calc(44px + env(safe-area-inset-bottom))}
 .keyboard-open .main-nav{display:none}.keyboard-open .workspace{bottom:0}
}

.pwa-panel{padding:12px 15px;background:#f0f3ed;border:1px solid #d5dfce;border-radius:12px;margin:12px 0 20px}.pwa-panel h3{font-size:14px;margin:0 0 6px}.pwa-panel button{padding:10px 14px;background:#38634f;color:white;border-radius:9px;margin:6px 5px 0 0}

#wordMeaning{font-size:16px;line-height:1.7;white-space:pre-wrap;color:#273e36;margin:9px 0 12px}#sentencePanel{border-top:1px solid #dce4d5;margin:12px 0;padding-top:12px}#sentencePanel>small{font-size:10px;color:#7c8a73}#wordSentence{font-size:13px;line-height:1.65;max-height:110px;overflow:auto;margin-top:6px;white-space:pre-wrap}#sentenceMeaning{font-size:14px;line-height:1.75;white-space:pre-wrap;margin:10px 0}#translateSentence{background:#eae4f4;color:#614881}
/* A short, scenario-led handbook: examples first, deeper reading on demand. */
.handbook-page[hidden]{display:none!important}.handbook-entry{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;text-align:left;padding:15px 17px;margin:18px 0;border:1px solid #dcd5e9;border-radius:13px;background:#f4f0f9}.handbook-entry span{font-size:12px;color:#877894}.handbook-entry strong{font-size:13px;color:#654e82}.handbook-page{flex:1;min-height:0;overflow:auto;padding:28px max(25px,calc((100% - 730px)/2)) 30px;overscroll-behavior:contain}.handbook-intro h1{font-size:32px;letter-spacing:0;line-height:1.45;margin:13px 0 10px}.handbook-intro p{font-size:12px;color:#7d8976;line-height:1.8}.handbook-label{font-size:13px;font-weight:500;margin:23px 0 12px}.handbook-scenarios{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.handbook-scenarios button{font-size:12px;padding:10px 13px;border:1px solid #d9dfd2;border-radius:20px;background:#fff}.handbook-scenarios button.active{background:#38634f;color:#fff;border-color:#38634f}.handbook-case{padding:23px;border:1px solid #dfd5eb;border-radius:19px;background:linear-gradient(145deg,#fbf9ff,#f2eef8)}.method-badge{display:inline-block;padding:5px 9px;border-radius:7px;background:#e9e0f3;color:#76588d;font-size:11px}.handbook-case h2{font-size:20px;line-height:1.55;margin:13px 0 18px;font-weight:600}.case-tabs{display:flex;gap:6px;padding:4px;background:#e8e3ee;border-radius:10px}.case-tabs button{flex:1;font-size:12px;padding:9px;border-radius:7px;color:#8a7b97}.case-tabs button.active{background:white;color:#5b466f;box-shadow:0 2px 7px #4b325910}.case-story{font-size:14px;line-height:1.9;margin:19px 0;color:#3e4850}.case-steps{display:flex;gap:8px;margin:18px 0;padding:0;list-style:none;counter-reset:steps}.case-steps li{counter-increment:steps;flex:1;display:flex;flex-direction:column;gap:7px;font-size:11px;line-height:1.6;padding:10px;background:#ffffffb8;border-radius:10px}.case-steps li:before{content:counter(steps,decimal-leading-zero);font:italic 21px Georgia;color:#9879b3}.case-try{border:1px solid #bba7cb;border-radius:10px;padding:11px 15px;color:#6b4c85;font-size:12px;background:white}.case-tip{background:#fff8e8;border:1px solid #e9dbb9;border-radius:11px;padding:13px;font-size:13px;line-height:1.8;color:#75603d}.handbook-section-title{margin:27px 0 13px;display:flex;align-items:center;justify-content:space-between;gap:10px}.handbook-section-title h2{font-size:18px;margin:0}.handbook-section-title span{font-size:10px;color:#939b88}.method-detail{border:1px solid #dbe2d4;border-radius:13px;background:#fff;margin:10px 0;padding:16px}.method-detail>summary{cursor:pointer;list-style:none;position:relative;padding-right:20px}.method-detail>summary:after{content:'+';position:absolute;right:0;top:2px;color:#8b9c80;font-size:18px}.method-detail[open]>summary:after{content:'−'}.method-detail>summary strong{font-size:15px;display:block;font-weight:550}.method-detail>summary span{display:block;margin-top:7px;font-size:11px;line-height:1.6;color:#8a9480}.method-why{font-size:13px;line-height:1.9;margin:16px 0}.method-quote{font-size:11px;color:#86917c}.method-quote summary{cursor:pointer;padding:7px 0}.method-quote blockquote{font-size:12px;line-height:1.85;margin:8px 0;background:#f2f5ed;color:#53664a}.handbook-note{font-size:10px;color:#97a08d;line-height:1.8;margin:22px 0}.handbook-view #menu,.handbook-view #paceButton{display:none}
@media(max-width:650px){.handbook-page{position:absolute;inset:54px 0 calc(44px + env(safe-area-inset-bottom));padding:23px 18px 25px;overflow-y:auto}.handbook-intro h1{font-size:28px}.handbook-case{padding:18px 16px}.handbook-case h2{font-size:19px}.case-story{font-size:14px}.handbook-scenarios{gap:7px}.handbook-scenarios button{font-size:11px;padding:9px 11px}.handbook-entry{padding:14px}.handbook-entry span{font-size:11px}.main-nav button span{font-size:11px}}

/* Device reading preferences: keep navigation/composer geometry independent. */
body,button,input,select,textarea{font-family:var(--reading-font,"Microsoft YaHei UI","Segoe UI",sans-serif)}
.message,.word-card,#readingPreview,.handbook-case p,.method-body{font-size:var(--reading-size,16px);font-weight:var(--reading-weight,400)}
.composer textarea{font-size:max(16px,var(--reading-size,16px));font-weight:var(--reading-weight,400)}
.english-word{font:inherit;line-height:inherit}
#appSettingsDialog{width:min(500px,94vw);padding:24px;overflow-y:auto}
#appSettingsDialog section{padding:14px 0 20px;border-bottom:1px solid #dce3db}
#appSettingsDialog h3{margin:0 0 16px;font-size:16px}
#appSettingsDialog label{display:flex;align-items:center;gap:10px;margin:15px 0 10px}
#readingSizeValue{margin-left:auto;color:#476653;font-variant-numeric:tabular-nums}
#readingSize{width:100%;accent-color:#38634f;padding:0;min-height:32px}
#readingFont{width:100%;padding:12px;border:1px solid #a8baad;background:white;border-radius:10px;color:#273e36}
.reading-preview{padding:16px;border:1px solid #c6d4c5;border-radius:12px;background:#fff;line-height:1.8;margin-top:14px}
#testHaptics{padding:12px 18px;border:1px solid #9bb3a2;border-radius:10px;background:#fff}
.settings-link{width:100%;display:flex;justify-content:space-between;padding:20px 0 4px;font-size:15px}
@media(max-width:650px){#appSettingsDialog{padding:20px;max-height:calc(var(--mobile-height,100dvh) - 28px)}header .badge{flex-shrink:0;white-space:nowrap}}
#appSettingsDialog .help{font-size:12px;line-height:1.65;margin:10px 0;color:#697b6d}
#readingSizeValue{font-size:15px;font-weight:500;line-height:1.5}
#appSettingsDialog input[type=checkbox]{width:18px;height:18px;accent-color:#38634f;flex-shrink:0}

/* Visible waiting state, then a brief reveal of the final corrected answer. */
.reply-pending{display:flex;align-items:center;gap:12px;min-height:64px;padding:12px 0 24px;color:#718577}
.pending-avatar{width:38px;height:38px;border-radius:12px;flex:none}
.pending-content{display:flex;align-items:center;gap:10px;font-size:13px}
.pending-dots{display:inline-flex;gap:4px;align-items:center;height:20px}
.pending-dots i{width:5px;height:5px;border-radius:50%;background:#668964;animation:reply-dot 1.2s ease-in-out infinite}
.pending-dots i:nth-child(2){animation-delay:.16s}.pending-dots i:nth-child(3){animation-delay:.32s}
@keyframes reply-dot{0%,60%,100%{transform:translateY(0);opacity:.35}30%{transform:translateY(-4px);opacity:1}}
.reply-revealing{min-height:1.8em}
@media(prefers-reduced-motion:reduce){.pending-dots i{animation:none;opacity:.65}}
.reply-revealing > [hidden]{display:none!important}

#memoryDialog{width:min(600px,94vw);max-height:90dvh;overflow:auto}
#memoryDialog .help{font-size:12px;line-height:1.7;color:#6a7c70}
#memoryDialog .switch-row{display:flex;gap:10px;align-items:center;font-size:14px}
#memoryDialog input[type=checkbox]{width:18px;height:18px;accent-color:#38634f}
#organizeMemory{border:1px solid #a7bca9;border-radius:10px;padding:10px 14px;margin-bottom:18px}
.memory-entry{padding:16px;border:1px solid #cbd8c9;background:white;border-radius:14px;margin:12px 0}
.memory-entry>p{font-size:var(--reading-size,16px);font-weight:var(--reading-weight,400);line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;margin:10px 0}
.memory-entry small{color:#748778;font-size:11px}.memory-actions{display:flex;gap:18px}
.memory-actions button,.memory-entry details>button{font-size:13px;color:#38634f;padding:8px 0}
.memory-entry summary,.memory-audit summary,#memoryEditor summary{font-size:13px;cursor:pointer;padding:10px 0}
.memory-entry blockquote{margin:8px 0;background:#f3f6ef;padding:12px;white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px;line-height:1.7}
#memoryText,#memoryCategory{width:100%;background:white;color:#273e36;border:1px solid #b9cbb9;border-radius:10px;padding:12px;font-size:16px}
#memoryForm label{display:block;margin:12px 0 8px}#memoryEvents p{font-size:12px;line-height:1.6}#memoryEditor{border-top:1px solid #dbe5d6;margin-top:20px}

.reply-tools{margin:-10px 0 22px;color:#50675a;font-size:13px}
.reply-tools-bar,.reply-player{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px}
.reply-tools button{min-height:36px;padding:5px 9px;border:1px solid #c9d6ca;border-radius:8px;background:#fff;color:#345745}
.reply-ratio{padding:5px 8px;border-radius:7px;background:#e7efe2;font-variant-numeric:tabular-nums}
.reply-player,.reply-translation{margin-top:8px;padding:8px 10px;border:1px solid #d8e2d5;border-radius:8px;background:#fff}
.reply-player input{flex:1;min-width:90px;accent-color:#38634f}
.reply-player [role=status]:empty{display:none}
.reply-translation{white-space:pre-wrap;overflow-wrap:anywhere;font-size:var(--reading-size,16px);line-height:1.7}
.reply-sentence.reading-now{background:#ffe5a3;box-shadow:0 0 0 2px #ffe5a3;box-decoration-break:clone;-webkit-box-decoration-break:clone;border-radius:3px}
.reply-tools[hidden],.reply-player[hidden],.reply-translation[hidden]{display:none}

#minePage .settings-link{display:flex;width:100%;justify-content:space-between;margin:10px 0}
#learningDialog .dialog-head,#assessmentDialog .dialog-head{position:sticky;top:0;z-index:2;background:#fcfcf9}
#learningDialog #coverage,#learningDialog #openAssessment,#learningDialog #exportLearning,#learningDialog > .help,.assessment-import{display:none}
#feedbackForm textarea,#feedbackForm input,#copyText{display:block;width:100%;margin:6px 0 14px}
.home-start{margin:0 0 18px}
.home-start .suggestions{margin-top:8px}
@media (min-width:761px){.main-nav #navMine{display:none}}
@media (max-width:760px){
 #backHome,#modeBadge,#sidebar .aside-bottom,#sidebar .brand,#sidebar .sidebar-home,#sidebar .section-label,#mobileSettings{display:none!important}
 #sidebar{padding-top:48px}
 .main-nav button,.main-nav button span{font-weight:750;color:#294a3b}
 .main-nav button.active,.main-nav button.active span{color:#1b563d}
 .assessment-word label{display:grid;grid-template-columns:20px 1fr 20px;width:100%}
 .assessment-word label span{text-align:center}
 #learningDialog{max-height:82dvh;overflow:auto}
 #minePage[hidden]{display:none}
}

.home-start > .primary{display:block;width:100%;margin-bottom:8px}
.home-start .suggestions button{background:#e7f0df;border-color:#cbdcc1;color:#2c5138}
.mine-hero{display:flex;align-items:center;gap:16px;padding:20px 16px;margin-bottom:16px;border:1px solid #d7e4cf;border-radius:20px;background:#eaf2e3}
.mine-avatar{width:64px;height:64px;border-radius:20px;flex:none}
.mine-hero h1,.mine-hero p{margin:4px 0}
#minePage .settings-link{border:1px solid #dae5d4;border-radius:12px;background:#fff;padding:13px}
#assessmentDialog .assessment-controls,#assessmentDialog .assessment-baseline{flex-shrink:0}
#assessmentDialog .assessment-controls{padding-bottom:8px}
#assessmentOverviewPane{min-height:0;overflow:auto;position:relative}
#assessmentDialog .book-overview{padding-top:16px}

#introDialog{width:min(390px,calc(100% - 32px))}
.intro-sender{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.intro-sender h2{margin:0;font-size:17px}
.intro-avatar{width:38px;height:38px;border-radius:13px;flex:none}
.intro-chat{display:grid;justify-items:start;gap:8px;margin-bottom:18px}
.intro-chat p{margin:0;padding:9px 13px;max-width:94%;border-radius:4px 14px 14px 14px;background:#eaf1e4;color:#294a3b;line-height:1.55}
#introDone{width:100%}

 .core-map{max-width:640px;margin:0 auto;padding:20px 0 32px;color:#294a3b}
.core-map-intro{display:grid;justify-items:center;gap:12px;text-align:center}
.core-map-intro p{margin:0;font-weight:700}
.core-map-intro .core-map-caption{font-weight:500;color:#526858}
.core-circle{display:grid;place-items:center;width:clamp(150px,47vw,210px);aspect-ratio:1;margin:0;border:2px solid #668e6b;border-radius:50%;background:#eaf2e4;font-size:clamp(29px,8vw,43px);letter-spacing:.05em}
.core-lines{display:block;width:100%;height:58px;stroke:#668e6b;stroke-width:1.5}
.core-branches,.core-supplements ul{display:grid;list-style:none;margin:0;padding:0;text-align:center}
.core-branches{grid-template-columns:repeat(3,minmax(0,1fr));justify-items:center}
.core-branches li{display:grid;align-content:center;justify-items:center;gap:6px;width:min(94%,155px);aspect-ratio:1;padding:6px;border:1.5px solid #86a78a;border-radius:50%;background:#f1f6ed;line-height:1.2}
.core-branches span,.core-supplements span{color:#526858;font-size:clamp(10px,2.9vw,14px)}
.core-branches strong{font-size:clamp(13px,3.8vw,19px)}
.core-supplements{margin-top:28px;text-align:center}
.core-supplements h2{margin:0 0 12px;color:#526858;font-size:13px;font-weight:600}
.core-supplements ul{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.core-supplements li{display:grid;gap:5px;padding:12px 6px;border:1px dashed #a8bca2;border-radius:24px}

.core-map-note{margin-top:24px;text-align:center;color:#526858;font-size:13px;line-height:1.6}
.core-map-note p{margin:0 0 6px}
.core-map-note .core-map-emphasis{color:#a92536;font-weight:700}

#minePage .mine-social summary{cursor:pointer}
#minePage .mine-social ul{list-style:none;margin:0 0 10px;padding:0 14px;line-height:2;color:#405c49}

.core-map[hidden],.principle-page[hidden],#guidePage[hidden]{display:none}
#guidePage .method-body p{color:#253b31;font-size:max(18px,var(--reading-size,16px));line-height:1.85;margin:0 0 1em}
#guidePage{padding:clamp(18px,5vw,28px);border:1px solid #d5e3d6;border-radius:20px;background:linear-gradient(150deg,#edf5e9,#f7faf4)}
#guidePage .guide-tag{display:inline-block;padding:4px 11px;border-radius:999px;background:#dcebdc;color:#28533e;font-size:12px;font-weight:600}
#guidePage .method-body p:last-child{margin-bottom:0}
.principles-notice{display:none}
.principles-view header>div{min-width:0;line-height:1.35}
.principles-view #headerTitle{white-space:nowrap}
.principles-view .principles-notice{display:inline;margin-inline-start:4px;color:#a92536;font-size:11px;overflow-wrap:anywhere}
.principles-notice b{color:#111;font-weight:750}
.principles-view header .status{display:none}
@media(max-width:760px){.main-nav button{gap:3px;padding-inline:2px;min-width:0}.main-nav button span{font-size:11px;white-space:nowrap}}
.core-map [data-principle]{color:inherit;font:inherit;font-weight:inherit;text-align:center;padding:4px;border-radius:8px;cursor:pointer}
.core-map [data-principle]:focus-visible,.principle-back:focus-visible{outline:2px solid #37654d;outline-offset:3px}
.principle-page{max-width:640px;margin:0 auto;padding:18px 0 36px;color:#294a3b}
.principle-page h2{font-size:clamp(25px,7vw,40px);margin:16px 0 8px}
.principle-back{color:#37654d;font-weight:700;padding:9px 4px}
.principle-lead{margin:0 0 16px;font-size:18px;line-height:1.5}
.principle-page section{padding:12px 0;border-top:1px solid #dce6d7}
.principle-page h3{margin:0 0 5px;font-size:16px}
.principle-page section p{margin:0;line-height:1.75}

#principle-brain section p + p{margin-top:12px}
#principle-brain .principle-warning{color:#a92536;border-top-color:#e9c7cd}


.principle-page section p{white-space:pre-wrap}
.principle-page section p + p{margin-top:12px}
.principle-page .principle-warning{color:#a92536;border-top-color:#e9c7cd}

.core-map-signoff{padding-top:6px;color:#3b5d47;font-weight:700}

.product-intro-note{margin:16px 0 12px;color:#526858;font-size:13px;text-align:center}
.product-intro{margin:0 auto;max-width:540px;padding:12px 16px;border:1px solid #d5e3d0;border-radius:14px;background:#fff}
.product-intro summary{cursor:pointer;font-weight:700}
.product-intro p{margin:12px 0 0;line-height:1.75}

#developerConnection[hidden]{display:none}
#privacyDialog{width:min(480px,calc(100% - 24px));max-height:85dvh;overflow:auto}
#privacyDialog p{line-height:1.65}
#privacyDialog h3{margin:12px 0 4px}
.account-page{max-width:32rem;margin:2rem auto;width:100%;padding:1.25rem}
.account-page form{display:grid;gap:.7rem}
.account-page #inviteFields:not([hidden]){display:grid;gap:.7rem}