:root{font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:#172033;background:#f6f8fc;font-size:16px;line-height:1.6;--blue:#2563eb;--line:#e5eaf2;--muted:#68758a}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer;border:0;border-radius:8px;background:var(--blue);color:white;padding:10px 17px;font-weight:600}button:hover{filter:brightness(.96)}button:disabled{opacity:.5;cursor:wait}a{color:var(--blue);text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #93c5fd;outline-offset:3px}.sidebar{position:fixed;width:238px;inset:0 auto 0 0;background:white;border-right:1px solid var(--line);padding:30px 20px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:10px;font-size:25px;font-weight:750;color:#172033;flex-wrap:wrap}.brand 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0;color:#576d96;font-size:14px}.banner.warning{background:#fff9ec;border-color:#f4e5bd}.section-intro{margin:0 0 25px;color:var(--muted)}.choices{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.choices button{background:#f1f4f9;color:#637087;font-size:14px}.choices button.selected{background:#e7efff;color:#215bc7}.plan{display:grid;gap:0}.plan-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}.plan-item:last-child{border:0}.step{width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:#eff4ff;color:var(--blue);font-size:14px;flex:none}.plan-item p{margin:4px 0;font-size:14px;color:var(--muted)}.plan-item a{font-size:14px}.record{padding:15px 0;border-bottom:1px solid var(--line)}.record:last-child{border:0}.record-head{display:flex;gap:12px;justify-content:space-between}.record p{white-space:pre-wrap;overflow-wrap:anywhere;margin:5px 0;font-size:14px;color:var(--muted)}.schedule{padding:22px;border-bottom:1px solid var(--line)}.schedule:last-child{border:0}.schedule-top{display:flex;justify-content:space-between;gap:15px}.schedule p{white-space:pre-wrap;overflow-wrap:anywhere;color:var(--muted);font-size:14px}.schedule-actions{display:flex;gap:12px;align-items:center;margin-top:15px}.time{font-size:27px;font-weight:650;color:#243a63}.form{display:grid;gap:16px}.form label{display:grid;gap:7px;color:#47566e;font-size:14px}.form input,.form textarea,.form select,.filter-input{width:100%;border:1px solid #dce3ee;border-radius:7px;padding:10px 12px;background:white;color:#172033;min-width:0}.form textarea{resize:vertical;min-height:95px}.form-pair{display:grid;grid-template-columns:1fr 1fr;gap:15px}.form-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:8px}.form-error{color:#b32d3e;font-size:14px}.checkbox-label{display:flex!important;align-items:center;gap:10px!important}.checkbox-label input{width:auto}.file-input{display:block;margin-top:16px;width:100%;font-size:14px}dialog{border:1px solid var(--line);border-radius:14px;padding:26px;width:min(560px,94vw);max-height:90vh;box-shadow:0 25px 100px #17203333;color:#172033}dialog::backdrop{background:#13213966}.dialog-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:23px}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);padding:12px 22px;background:#172b4d;color:white;border-radius:8px;display:none;z-index:20;max-width:90vw}footer{display:flex;justify-content:space-between;color:#93a0b2;font-size:12px;margin-top:35px;gap:20px}.backup-status{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid 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@media(min-width:1500px){main{padding:45px 65px}.grid{grid-template-columns:1.5fr 1fr}}@media(max-width:1050px){.sidebar{width:200px;padding:25px 14px}main{margin-left:200px;padding:30px 24px}.grid{grid-template-columns:1fr}.roadmap{grid-template-columns:repeat(3,1fr)}}@media(max-width:700px){.sidebar{position:static;width:100%;padding:16px;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:21px}.brand small{padding:0;margin:0;font-size:12px}.nav-label,.sidebar-foot{display:none}nav{display:flex;overflow-x:auto;margin-top:15px;gap:4px}nav a{padding:9px 11px;white-space:nowrap;font-size:14px;gap:6px}main{margin-left:0;padding:24px 16px}header{align-items:flex-start;margin-bottom:24px}h1{font-size:24px}.header-right{gap:8px;flex-direction:column;align-items:flex-end;font-size:12px}.stats{gap:9px}.stat{padding:14px 12px}.stat strong{font-size:23px}.stat small{font-size:12px}.banner{align-items:flex-start;flex-direction:column}.intro{align-items:flex-start}.intro h2{font-size:19px}.card-head,.card-body{padding:18px}.roadmap{grid-template-columns:repeat(2,1fr)}.schedule-top{flex-wrap:wrap}footer{flex-direction:column;gap:2px}.task{gap:8px}.form-pair{grid-template-columns:1fr}.filter-bar{flex-wrap:wrap}.badge{white-space:normal}}
[hidden]{display:none!important}progress.progress{display:block;width:100%;border:0;appearance:none}progress.progress::-webkit-progress-bar{background:#eef2f8;border-radius:5px}progress.progress::-webkit-progress-value{background:#2563eb;border-radius:5px}progress.progress::-moz-progress-bar{background:#2563eb}hr{border:0;border-top:1px solid #e5eaf2;margin:24px 0}
.material-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.material-tile{border:1px solid #e5eaf2;border-radius:9px;padding:18px;display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;gap:10px}.material-tile h3{margin:10px 0 4px;overflow-wrap:anywhere}.material-tile p{margin:4px 0}.practice-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}.practice-toolbar select{max-width:100%;flex:1;min-width:160px}.practice-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:20px}.word-list{border-top:1px solid #e5eaf2}.word-row{display:flex;align-items:flex-start;gap:12px;padding:14px 4px;border-bottom:1px solid #edf0f6;cursor:pointer;font-size:16px;overflow-wrap:anywhere}.word-row input{width:19px;height:19px;flex:none;margin-top:5px;accent-color:#2563eb}.word-row.learned{color:#7a8799;background:#f8faff}.reader-dialog{width:min(920px,96vw)}.material-meta{display:flex;justify-content:space-between;gap:16px;margin-bottom:22px}.markdown{font-size:16px;line-height:1.9;overflow-wrap:anywhere}.markdown p{margin:10px 0;white-space:pre-wrap}.markdown h2,.markdown h3,.markdown h4{margin:20px 0 10px}.markdown blockquote{border-left:3px solid #d6e4fc;padding-left:15px;margin:6px 0;color:#68758a}.md-space{height:8px}.markdown code,.word-row code{background:#f1f4f9;padding:2px 5px;border-radius:4px}.resource-address{font-size:12px;color:#8793a4}.resource-link{display:inline-block;margin-top:6px}@media(max-width:700px){.material-grid{grid-template-columns:1fr}.practice-toolbar{align-items:stretch;flex-direction:column}.practice-toolbar select,.practice-toolbar input{width:100%}.material-meta{flex-direction:column;gap:3px}.word-row{padding:15px 0}.material-tile{padding:16px}}
.daily-word-scroll{max-height:440px;overflow-y:auto;padding-right:8px}