:root{--bg:#f5f6f2;--paper:#fff;--ink:#22372f;--muted:#7a877f;--line:#e5eae3;--green:#176b53;--soft:#eaf3ed;--orange:#b57940;--radius:20px;font-family:Inter,"Segoe UI","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}a{color:var(--green);text-decoration:none}button:focus-visible,a:focus-visible{outline:3px solid #9bc8b2;outline-offset:3px}button{border:0;background:none;color:inherit}svg{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.shell{display:grid;grid-template-columns:232px minmax(0,1fr);min-height:100vh}.sidebar{padding:34px 20px 22px;border-right:1px solid var(--line);background:#fcfdf9;position:fixed;top:0;left:0;width:232px;height:100vh;display:flex;flex-direction:column;z-index:10}.brand{display:flex;gap:11px;align-items:center;padding:0 12px}.brand img{width:38px;height:38px}.brand strong{display:block;font-size:18px;letter-spacing:-.7px}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:2px;margin-top:4px}.nav-label{font-size:10px;letter-spacing:2px;color:#99a39d;padding:42px 14px 14px}.nav{display:flex;flex-direction:column;gap:7px}.nav button{display:flex;gap:13px;align-items:center;padding:13px 16px;border-radius:10px;color:#6e7a73;text-align:left;font-size:14px}.nav button:hover{background:#f1f4ee}.nav button.active{background:var(--soft);color:var(--green);font-weight:650}.nav .badge{margin-left:auto;background:#d6e9dd;color:var(--green);border-radius:6px;font-size:10px;padding:2px 6px}.side-bottom{margin-top:auto}.local-label{border-top:1px solid var(--line);margin-top:18px;padding:20px 12px 0;color:var(--muted);font-size:11px;line-height:1.9}.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#7daf7d;margin-right:6px}.main{grid-column:2;min-width:0;padding:0 42px 40px;max-width:1600px;width:100%;margin:auto}.topbar{height:86px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:16px;font-size:12px;color:var(--muted)}.crumb{display:flex;align-items:center;gap:12px}.top-right{display:flex;align-items:center;gap:18px}.avatar{width:32px;height:32px;background:#e7ecdc;border-radius:50%;display:grid;place-items:center;color:#6a7757;font-size:13px}.page-head{display:flex;justify-content:space-between;align-items:center;margin:32px 0 26px;gap:15px}h1,h2,h3,p{margin:0}h1{font-size:28px;letter-spacing:-1px;font-weight:650}h2{font-size:17px;font-weight:650}h3{font-size:15px;font-weight:600}.subtitle{color:var(--muted);font-size:13px;margin-top:9px;line-height:1.8}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--green);border-radius:10px;color:white;padding:11px 16px;font-size:13px;font-weight:550;white-space:nowrap}.btn:hover{background:#11563f}.btn.secondary{background:white;border:1px solid var(--line);color:var(--ink)}.btn.ghost{background:var(--soft);color:var(--green)}.btn.danger{background:#fff0ee;color:#b64f42}.btn.small{padding:7px 10px;font-size:12px}.hero{min-height:210px;background:#e8eee0;border:1px solid #e0e7d9;border-radius:var(--radius);display:flex;overflow:hidden;position:relative;padding:30px 34px;align-items:center}.hero-copy{position:relative;z-index:1;max-width:65%}.eyebrow{font-size:10px;letter-spacing:2.4px;color:#6e8066;margin-bottom:15px}.hero h2{font-size:27px;font-weight:550;line-height:1.55;letter-spacing:-.7px}.hero p{color:#77816d;font-size:12px;margin:12px 0 20px}.hero-art{position:absolute;right:6%;top:26px;width:220px;height:190px}.orbit{position:absolute;border:1px solid #c5d4ba;border-radius:50%;width:210px;height:210px;top:-10px;left:0}.orbit.two{width:160px;height:160px;top:15px;left:25px}.book{position:absolute;width:92px;height:128px;border-radius:5px 12px 12px 5px;transform:rotate(-17deg);background:#426851;left:56px;top:24px;box-shadow:10px 12px 0 #c6d0b5,16px 20px 28px #56664e24;border-left:8px solid #30523d}.book:before{content:'STAY\A CURIOUS.';white-space:pre;position:absolute;top:25px;left:14px;font:12px/1.6 Georgia,serif;color:#dce5c7;letter-spacing:1px}.book:after{content:'';position:absolute;bottom:20px;left:14px;width:24px;border-top:1px solid #c7d6b6}.spark{position:absolute;right:22px;top:16px;font-size:30px;color:#7d9b6b}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0}.stat{background:var(--paper);border:1px solid var(--line);border-radius:15px;padding:20px 22px;position:relative}.stat .stat-icon{position:absolute;right:20px;top:20px;color:#8ba58e;background:#f2f6ee;border-radius:9px;padding:7px;display:flex}.stat-label{color:var(--muted);font-size:12px}.stat-value{font-size:29px;letter-spacing:-1px;margin:12px 0 5px;font-weight:600}.stat-value small{font-size:12px;color:var(--muted);letter-spacing:0;font-weight:400;margin-left:6px}.stat-foot{font-size:10px;color:#90a08f}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,1fr);gap:22px}.stack{display:flex;flex-direction:column;gap:22px}.panel{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:24px;min-width:0}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.link{font-size:12px;color:var(--muted);display:inline-flex;align-items:center;gap:5px}.link:hover{color:var(--green)}.task-row{display:flex;gap:12px;align-items:center;padding:16px 0;border-top:1px solid #f0f2ed}.task-row:first-child{border-top:0}.check{width:21px;height:21px;border:1.5px solid #d1dad1;border-radius:6px;padding:0;flex-shrink:0;display:grid;place-items:center}.check.checked{color:white;background:var(--green);border-color:var(--green)}.check svg{width:15px;height:15px}.task-main{flex:1;min-width:0}.task-title{font-size:13px;overflow-wrap:anywhere}.task-title.done{text-decoration:line-through;color:var(--muted)}.meta{font-size:10px;color:var(--muted);display:flex;gap:10px;margin-top:7px;align-items:center;flex-wrap:wrap}.pill{font-size:10px;border-radius:5px;padding:4px 7px;display:inline-block;background:var(--soft);color:#53896d}.pill.blue{background:#eaf0fa;color:#6b87ad}.pill.orange{background:#fbf0e4;color:#ad8054}.pill.purple{background:#f0eaf6;color:#9a7eb6}.priority{font-size:10px;color:#b98a60;white-space:nowrap}.icon-btn{display:inline-flex;padding:6px;border-radius:7px;color:#9aa59d}.icon-btn:hover{color:var(--green);background:var(--soft)}.icon-btn svg{width:16px;height:16px}.empty{text-align:center;padding:32px 18px;color:var(--muted);font-size:12px;line-height:1.9}.empty svg{width:30px;height:30px;margin-bottom:10px;color:#a9bda7}.empty strong{display:block;color:#697e6d;font-size:14px;margin-bottom:5px}.empty .btn{margin-top:14px}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.course-card{border:1px solid var(--line);border-radius:16px;background:white;padding:23px;min-width:0}.course-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;margin-bottom:20px;background:#edf3e8;color:#7d976d}.course-card h3{margin-bottom:8px;overflow-wrap:anywhere}.course-card p{font-size:12px;color:var(--muted);line-height:1.8;min-height:42px;white-space:pre-wrap;overflow-wrap:anywhere}.progress{height:5px;border-radius:5px;background:#edf1e9;margin:13px 0 9px;overflow:hidden}.progress i{display:block;height:100%;background:#82a888;border-radius:5px}.course-foot{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}.course-actions{display:flex;justify-content:flex-end;gap:3px;margin-top:17px}.chart{display:flex;align-items:flex-end;gap:12px;height:125px;padding-top:12px;margin:15px 0 0}.bar-col{flex:1;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:8px;min-width:0}.bar{width:100%;max-width:27px;background:#dce9d8;border-radius:5px 5px 0 0;min-height:3px}.bar.current{background:#82a37b}.bar-col span{font-size:10px;color:#939d91}.chart-total{display:flex;align-items:baseline;gap:7px;margin-top:12px;font-size:25px;letter-spacing:-1px}.chart-total small{font-size:11px;letter-spacing:0;color:var(--muted)}.focus-panel{background:#f0f3e9;text-align:center;border-color:#e1e7d8}.focus-clock{font-size:43px;letter-spacing:2px;font-weight:350;margin:15px 0}.focus-label{font-size:11px;color:#869078}.focus-controls{display:flex;justify-content:center;gap:10px;margin:16px 0 3px}.toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:22px}.search{flex:1;min-width:180px}.tabs{display:flex;gap:4px;background:#e9eee6;border-radius:9px;padding:4px}.tabs button{padding:7px 13px;font-size:12px;border-radius:6px;color:var(--muted)}.tabs button.active{background:#fff;color:var(--ink);box-shadow:0 2px 5px #203b2810}input,select,textarea{border:1px solid #dfe6dc;border-radius:9px;padding:10px 12px;background:white;color:var(--ink);outline:none;max-width:100%;font-size:13px}input:focus,select:focus,textarea:focus{border-color:#7faa8a;box-shadow:0 0 0 3px #7faa8a15}textarea{resize:vertical;min-height:95px}input[type=color]{padding:2px}.question-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.question-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}.question-image{width:100%;height:180px;object-fit:contain;background:#f0f1eb;padding:12px}.question-placeholder{height:140px;display:grid;place-items:center;background:#edf2e7;color:#a0b293}.question-placeholder svg{width:40px;height:40px}.question-body{padding:20px}.question-body h3{overflow-wrap:anywhere;line-height:1.6}.question-body p{font-size:12px;line-height:1.8;color:var(--muted);margin-top:10px;white-space:pre-wrap;overflow-wrap:anywhere}.question-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:18px;gap:8px}.review-card{max-width:800px;margin:0 auto}.review-card .question-image{height:auto;max-height:450px;border-radius:12px}.review-prompt{white-space:pre-wrap;line-height:1.9;margin:20px 0;overflow-wrap:anywhere}.answer{padding:24px;background:#f2f6ed;border-radius:12px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere}.ratings{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:24px}.rating{padding:14px 8px;border:1px solid var(--line);border-radius:11px;font-size:13px}.rating small{display:block;color:var(--muted);font-size:10px;margin-top:6px}.rating:hover{background:var(--soft);border-color:#9ab69d}.resource-row{display:flex;gap:16px;padding:20px 0;border-top:1px solid var(--line);align-items:center}.resource-row:first-child{border-top:0}.resource-icon{width:44px;height:48px;background:#edf2e8;border-radius:10px;display:grid;place-items:center;color:#849579}.resource-info{flex:1;min-width:0}.resource-info h3{overflow-wrap:anywhere}.resource-info p{font-size:12px;color:var(--muted);margin-top:7px;white-space:pre-wrap;overflow-wrap:anywhere}.actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.settings-grid p{font-size:13px;color:var(--muted);line-height:1.9;margin:14px 0}.settings-grid code{display:block;background:#f3f5ef;border-radius:9px;padding:12px;word-break:break-all;font-size:12px;margin:10px 0}.settings-grid ul{padding-left:20px;font-size:12px;color:var(--muted);line-height:2}.settings-grid .wide{grid-column:1/-1}.log-row{display:flex;gap:12px;align-items:center;font-size:12px;padding:13px 0;border-bottom:1px solid var(--line)}.log-row .grow{flex:1}.footer{font-size:10px;display:flex;justify-content:space-between;color:#a3aba1;margin-top:32px;padding-top:18px;border-top:1px solid var(--line)}dialog{border:1px solid var(--line);border-radius:20px;padding:0;max-width:min(600px,calc(100vw - 28px));width:600px;color:var(--ink);box-shadow:0 25px 90px #193a3225}dialog::backdrop{background:#172c2866;backdrop-filter:blur(3px)}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:24px;border-bottom:1px solid var(--line)}.modal-head h2{font-size:19px}.modal-body{padding:24px;display:grid;gap:17px}.field{display:flex;flex-direction:column;gap:8px;font-size:12px;color:#637369}.field small{color:var(--muted);font-size:11px;line-height:1.6}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:18px 24px;border-top:1px solid var(--line)}.preview-img{max-height:180px;max-width:100%;object-fit:contain}.error{color:#b65145;background:#fff2ef;padding:12px;border-radius:8px;font-size:12px;line-height:1.7}.hint{font-size:12px;color:var(--muted);line-height:1.8}.loading{display:grid;place-items:center;min-height:100vh;color:var(--green)}#toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);z-index:100;background:#243c31;color:white;padding:13px 22px;border-radius:12px;box-shadow:0 8px 30px #22372f22;font-size:13px;max-width:90vw;display:none}#toast.visible{display:block}.login{max-width:420px;margin:12vh auto;padding:30px;background:white;border:1px solid var(--line);border-radius:20px}.login img{width:50px;margin-bottom:18px}.login h1{font-size:25px}.login input{width:100%;margin:22px 0 14px}.login .btn{width:100%}.mobile-title{display:none}.numbers{font-variant-numeric:tabular-nums}.today-tag{color:var(--green)}.overdue{color:#b57252}.section-space{margin-top:24px}.answer-preview{font-size:12px;line-height:1.8;white-space:pre-wrap}.backup-list{max-height:220px;overflow:auto}.backup-list a{display:block;padding:8px;font-size:11px;word-break:break-all}.course-strip{display:flex;align-items:center;gap:12px;padding:13px 0;border-top:1px solid var(--line)}.course-strip .course-icon{margin:0;width:34px;height:34px}.course-strip .grow{flex:1}.course-strip h3{font-size:12px}.course-strip .progress{margin:9px 0 0}.course-strip small{color:var(--muted);font-size:11px}
@media(min-width:1500px){.main{padding-left:55px;padding-right:55px}.hero{min-height:230px}}@media(max-width:1150px){.sidebar{width:200px;padding-left:14px;padding-right:14px}.shell{grid-template-columns:200px minmax(0,1fr)}.main{padding:0 25px 30px}.course-grid,.question-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.dashboard-grid{grid-template-columns:minmax(0,1.4fr) minmax(245px,1fr)}.stat{padding:17px}.stat .stat-icon{right:12px;top:14px}.hero-art{right:1%;transform:scale(.85)}.hero h2{font-size:24px}}
@media(max-width:850px){.shell{display:block}.sidebar{width:100%;height:auto;position:sticky;top:0;padding:12px 18px;border-right:0;border-bottom:1px solid var(--line);gap:10px}.brand{padding:0}.brand img{width:30px;height:30px}.brand strong{font-size:16px}.brand small,.nav-label,.side-bottom .local-label{display:none}.nav{flex-direction:row;overflow:auto;gap:4px}.nav button{padding:9px 11px;white-space:nowrap;font-size:12px;gap:6px}.nav svg{width:16px;height:16px}.side-bottom{margin:0;position:absolute;right:15px;top:9px}.side-bottom .nav button{font-size:0}.side-bottom .nav svg{width:20px;height:20px}.main{padding:0 22px 28px}.topbar{height:56px}.dashboard-grid{grid-template-columns:1fr 1fr}.stat-label{font-size:11px}.stat .stat-icon{display:none}.hero-art{right:4%}.page-head{margin:25px 0}.settings-grid{grid-template-columns:1fr}.settings-grid .wide{grid-column:auto}}
@media(max-width:600px){.main{padding:0 16px 24px}.top-right .device-status{display:none}.page-head{align-items:flex-start}h1{font-size:24px}.subtitle{font-size:12px}.page-head>.btn{padding:9px 12px;font-size:12px}.hero{padding:25px;min-height:220px}.hero-copy{max-width:85%}.hero h2{font-size:23px}.hero p{max-width:180px;line-height:1.8}.hero-art{right:-55px;top:50px;opacity:.5;transform:scale(.72)}.hero-copy .btn{position:relative}.stats-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin:16px 0}.stat{padding:16px 18px}.stat-value{font-size:26px;margin:10px 0 3px}.dashboard-grid{grid-template-columns:1fr;gap:16px}.stack{gap:16px}.panel{padding:20px;border-radius:16px}.course-grid,.question-grid{grid-template-columns:1fr}.toolbar{gap:8px}.toolbar input{width:100%}.toolbar select{flex:1}.search{flex-basis:100%}.resource-row{gap:10px;flex-wrap:wrap}.resource-row>.actions{width:100%;padding-left:54px}.ratings{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:1fr}.modal-body{padding:20px}.footer{gap:15px;line-height:1.8}.focus-clock{font-size:40px}.nav .badge{display:none}.task-row{gap:9px}.task-row .priority{display:none}}


.cloud-conflict{border-top:1px solid var(--line);padding:20px 0}.conflict-columns{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:16px 0}.conflict-columns pre{font-size:11px;background:#f5f6f2;border-radius:8px;padding:12px;white-space:pre-wrap;overflow-wrap:anywhere;max-height:240px;overflow:auto}.conflict-columns strong{font-size:12px}.login .field input{margin:6px 0 14px}.login .actions{justify-content:space-between}.login .link{font-size:12px}.device-status{max-width:280px;font-size:11px}@media(max-width:600px){.conflict-columns{grid-template-columns:1fr}.login{margin:7vh 16px;padding:25px}}
.archive-preview{white-space:pre-wrap;overflow-wrap:anywhere;font-size:11px;max-height:240px;overflow:auto;background:#f5f6f2;padding:14px;border-radius:8px}.cloud-conflict summary{cursor:pointer;font-size:13px;line-height:1.8}