:root{font-family:"Segoe UI","Microsoft YaHei",sans-serif;color:#25382e;background:#f5f6f2;--green:#305b45;--soft:#e8f0e8;--line:#dce3dc;--muted:#6d796f}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,.button{cursor:pointer;border:1px solid var(--line);border-radius:9px;background:#fff;color:#25382e;padding:10px 15px;display:inline-block;font-size:14px}button:hover,.button:hover{border-color:var(--green)}button:disabled{opacity:.5;cursor:default}.primary{background:var(--green);color:#fff;border-color:var(--green)}.app{display:grid;grid-template-columns:240px minmax(0,1fr);min-height:100vh}.sidebar{background:#fbfcf9;border-right:1px solid var(--line);padding:26px 17px}.brand{display:flex;gap:11px;align-items:center;font-weight:600;margin:0 0 32px}.brand b{background:var(--green);color:white;border-radius:11px;padding:10px}.brand 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p{font-size:12px;color:var(--muted);margin:0}.stat strong{font-size:27px;margin:6px 4px 0 0;display:inline-block}.stat small{color:var(--muted)}.grid{display:grid;grid-template-columns:1.5fr 1fr;gap:16px;align-items:start}.row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.task{border-top:1px solid var(--line);padding:14px 0}.task:first-of-type{border:0}.task p{font-size:13px;margin:3px 0}.week{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin:16px 0}.day{text-align:center;font-size:12px;color:var(--muted)}.day b{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;margin:6px auto;background:#f4f6f3;font-weight:400}.day.done b{background:var(--green);color:#fff}.day.today b{outline:1px solid var(--green);outline-offset:2px}.section{margin-top:23px}.paths{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.path{display:block;background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px}.path:hover{border-color:var(--green)}.path h3{margin-top:10px}.path p{font-size:13px;color:var(--muted);margin:4px 0}.chip{display:inline-block;background:var(--soft);color:var(--green);padding:4px 8px;border-radius:7px;font-size:12px}.study-layout{display:grid;grid-template-columns:minmax(0,1fr) 235px;gap:17px;align-items:start}.terms{display:grid;gap:12px}.term h2{margin-top:10px}.term p{font-size:14px;margin:8px 0}.term strong{color:var(--green)}.example{background:#f4f6f3;padding:12px;border-radius:8px}.study-side{position:sticky;top:16px}.study-side button,.study-side .button{width:100%;text-align:center;margin-top:9px}.quiz-wrap{max-width:780px;margin:auto}.question{padding:24px}.question h2{font-size:20px;line-height:1.6;margin:15px 0}.options{display:grid;gap:9px}.option{display:flex;gap:11px;align-items:flex-start;padding:12px;border:1px solid var(--line);border-radius:8px;cursor:pointer;font-size:14px;line-height:1.7}.option:has(input:checked){background:var(--soft);border-color:var(--green)}input[type=radio]{accent-color:var(--green);margin-top:5px}textarea{width:100%;min-height:110px;padding:12px;border:1px solid var(--line);border-radius:8px;line-height:1.7}.feedback{padding:13px 15px;border-radius:8px;background:#fbefed;color:#803d36;margin-top:14px}.feedback.good{background:var(--soft);color:var(--green)}.feedback p{margin:5px 0;font-size:13px}.feedback button{margin-top:7px}.review-item{margin:11px 0}.review-item p{font-size:14px}summary{cursor:pointer;color:var(--green);line-height:2}.empty{background:#fff;border:1px dashed var(--line);border-radius:10px;padding:36px;text-align:center;color:var(--muted)}.warning{background:#fff0d1;color:#76540c;padding:12px;border-radius:8px;margin-bottom:15px}footer{font-size:12px;color:var(--muted);margin:30px 0}#message{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#25382e;color:#fff;border-radius:8px;padding:10px 15px;z-index:5;max-width:90%}#message:empty{display:none}.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.timeline{padding-left:20px;line-height:1.8}
@media(max-width:950px){.app{grid-template-columns:205px 1fr}.sidebar{padding:20px 12px}main{padding:0 21px 28px}.grid{grid-template-columns:1fr}.study-layout{grid-template-columns:1fr 205px}}
@media(max-width:680px){.app{display:block}.sidebar{display:none}main{padding:0 15px 25px}header{height:56px;margin:0 0 15px}.mobile-nav{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:18px}.hero{grid-template-columns:1fr;padding:21px}.hero-stat{border-left:0;border-top:1px solid #ffffff50;padding:14px 0 0}.stats{gap:7px}.stat{padding:12px}.stat strong{font-size:22px}.paths{grid-template-columns:1fr}.study-layout{grid-template-columns:1fr}.study-side{position:static;order:-1}h1{font-size:23px}.head{align-items:flex-start;flex-wrap:wrap}.question{padding:18px}.question h2{font-size:18px}}

.library-tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:18px}.library-tools input,.library-tools select{padding:11px;border:1px solid var(--line);border-radius:8px;background:#fff;max-width:100%;font:inherit}.library-tools input{flex:1;min-width:180px}.library-tools label{font-size:13px}.library-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.template-text{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;font-size:14px;line-height:1.8;background:#f4f6f3;padding:14px;border-radius:8px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #779777;outline-offset:3px}@media(max-width:680px){.library-grid{grid-template-columns:1fr}.library-tools{align-items:stretch;flex-direction:column}.library-tools input{width:100%}}

.source-note{font-size:13px;padding:12px;background:#e8f0e8;border-radius:8px;line-height:1.8}.source-note a{text-decoration:underline}.source-index{display:flex;flex-wrap:wrap;gap:8px}.table-scroll{max-width:100%;overflow:auto;margin:15px 0}.table-scroll table{border-collapse:collapse;min-width:640px;font-size:13px;width:100%}.table-scroll td,.table-scroll th{border:1px solid var(--line);padding:10px;vertical-align:top;white-space:pre-line}.table-scroll th{background:var(--soft)}.panel li{line-height:1.8;margin:8px 0}