@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;600;700;800&family=DM+Sans:wght@400;500;600;700&display=swap');
:root{--bg:#f5f6f1;--paper:#fff;--ink:#213932;--muted:#707c75;--line:#e2e7df;--green:#32674e;--lime:#e1edbd;--soft:#eff4eb;--gold:#c5a16c}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px 'DM Sans','Noto Sans TC',sans-serif;line-height:1.65}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button{cursor:pointer}a{color:inherit;text-decoration:none}button{border:1px solid var(--line);background:white;color:var(--ink);padding:10px 18px;border-radius:8px;font-weight:600}button:hover{border-color:var(--green);background:var(--soft)}button:disabled{opacity:.5;cursor:wait}.primary{background:var(--ink);color:white;border-color:var(--ink)}.primary:hover{background:var(--green);color:white}.sidebar{position:fixed;inset:0 auto 0 0;width:236px;background:#fcfdf9;border-right:1px solid var(--line);padding:35px 21px;display:flex;flex-direction:column;z-index:5}.brand{display:flex;gap:12px;align-items:center;font-size:18px;font-weight:800}.brand-icon{height:43px;width:43px;background:var(--ink);border-radius:12px;color:white;font-size:25px;display:grid;place-content:center;position:relative;font-family:monospace}.brand-icon span{color:var(--lime);position:absolute;right:5px;bottom:4px;font-size:18px}.brand small{display:block;letter-spacing:2px;font-size:9px;font-weight:500;color:var(--muted);margin-top:2px}.nav-label{font-size:10px;letter-spacing:1.5px;color:#8c978e;margin:45px 12px 13px}.sidebar nav{display:grid;gap:7px}.sidebar nav a{padding:11px 13px;border-radius:8px;font-size:13px;color:#65726a;display:flex;align-items:center;gap:13px}.sidebar nav a>span{font-size:20px;width:22px;text-align:center;font-family:monospace}.sidebar nav a.active{background:#eaf0e1;color:var(--ink);font-weight:700}.sidebar nav a:hover{background:#eff3eb}.sidebar nav b{margin-left:auto;background:#dde7d5;border-radius:5px;padding:0 6px;font-size:10px}.sidebar-bottom{margin-top:auto;font-size:12px;padding:20px 10px 0}.sidebar-bottom small{display:block;color:var(--muted);font-size:10px;line-height:1.8;margin:12px 0}.sidebar-bottom button{font-size:10px;padding:5px 9px}.import-label{font-size:10px;cursor:pointer;margin-left:5px}.import-label input{display:none}.live-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#85a46b;margin-right:7px}.workspace{margin-left:236px}.topbar{height:76px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 46px;font-size:11px;color:var(--muted)}.slash{margin:0 14px;color:#abb5ac}.course-badge{border:1px solid #dce3d8;padding:4px 11px;border-radius:20px;font-size:10px;letter-spacing:.7px}main{max-width:1440px;margin:auto;padding:37px 46px 60px;min-height:calc(100vh - 143px)}.eyebrow{font-size:10px;color:var(--green);letter-spacing:2px;font-weight:700;margin:0 0 9px}.page-heading{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:27px;gap:12px}h1{font-size:29px;letter-spacing:-1px;margin:0 0 7px;font-weight:800;line-height:1.4}h2{font-size:18px;margin:0 0 8px;font-weight:700}h3{font-size:15px;margin:0 0 6px}p{margin:5px 0 15px}.muted{color:var(--muted);font-size:12px}.tiny{font-size:10px;color:var(--muted)}.hero{background:#213d34;border-radius:15px;color:#f6f8ed;display:grid;grid-template-columns:1.3fr 1fr;overflow:hidden;min-height:255px;position:relative;margin-bottom:23px}.hero-copy{padding:30px 34px;z-index:1}.hero .eyebrow{color:#c8dd9c}.hero h2{font-size:29px;line-height:1.5;letter-spacing:-.7px;margin:13px 0 10px}.hero p{color:#bfd0c2;font-size:12px}.hero button{background:#deebb7;border:0;margin-top:5px;font-size:12px;padding:10px 18px}.hero-code{margin:29px 30px 29px 5px;border:1px solid #57715d;background:#1b322b;border-radius:11px;transform:rotate(-2deg);padding:17px 21px;box-shadow:10px 15px 0 #2b493b;font:12px/1.85 Consolas,monospace;align-self:center}.code-dots{display:flex;gap:5px;border-bottom:1px solid #395546;padding-bottom:13px;margin-bottom:14px}.code-dots i{width:6px;height:6px;background:#7c9b80;border-radius:50%}.hero-code .keyword{color:#c8df92}.hero-code .value{color:#d7b580}.code-comment{color:#83a58c;font-size:10px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:30px}.stat{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:17px 20px;display:flex;justify-content:space-between;align-items:center}.stat strong{display:block;font-size:27px;line-height:1.3}.stat small{font-size:10px;color:var(--muted)}.stat .stat-icon{display:grid;place-items:center;width:35px;height:35px;background:var(--soft);border-radius:9px;color:var(--green);font-size:19px}.section-head{display:flex;justify-content:space-between;align-items:center;margin:0 0 15px}.text-button{background:none;border:0;padding:2px;font-size:11px;color:var(--green)}.home-columns{display:grid;grid-template-columns:1fr 285px;gap:24px}.unit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.unit{border:1px solid var(--line);background:white;border-radius:10px;padding:19px;display:block;transition:.15s}.unit:hover{transform:translateY(-3px);border-color:#9eb394;box-shadow:0 6px 16px #203a3408}.unit-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.unit-number{font-size:10px;letter-spacing:1px;color:var(--muted)}.unit-mark{display:grid;place-items:center;background:#edf2e5;width:34px;height:34px;border-radius:8px;font-family:monospace;font-size:15px;color:#658455}.unit:nth-child(2n) .unit-mark{background:#f6eee0;color:#a4834b}.unit p{font-size:10px;color:var(--muted);min-height:32px;margin:4px 0 15px}.progress{height:4px;border-radius:4px;background:#edf0e9;overflow:hidden;margin:10px 0 7px}.progress div{height:100%;background:#6d8b50}.unit-foot{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}.panel{background:white;border:1px solid var(--line);border-radius:11px;padding:23px;margin-bottom:17px}.recall-panel{background:#f0f3e7}.recall-panel h3{font-size:16px;margin:14px 0 12px}.recall-panel p{font-size:12px;color:#637258}.tag{display:inline-block;background:#eaf0e2;color:#577148;border-radius:5px;padding:3px 8px;font-size:9px;letter-spacing:.4px}.routine{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid #edf0e8;font-size:11px}.routine:last-child{border:0}.routine b{background:var(--soft);color:var(--green);width:23px;height:23px;text-align:center;border-radius:50%;font-size:10px;flex-shrink:0}.routine small{color:var(--muted);display:block;font-size:10px}.toolbar{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:24px;align-items:center}.toolbar select,.toolbar input{padding:9px 13px;border:1px solid var(--line);border-radius:8px;background:white;color:var(--ink);max-width:100%}.toolbar input{min-width:240px}.chip{border-radius:20px;padding:6px 13px;font-size:11px;background:transparent}.chip.selected{background:var(--ink);color:white;border-color:var(--ink)}.notes-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px}.note{scroll-margin-top:30px}.note h2{font-family:Consolas,'Noto Sans TC',monospace;font-size:19px;margin:12px 0 4px}.note p{font-size:12px;color:#66746a}.mnemonic{border-left:3px solid #a4ba7c;padding:8px 11px;background:var(--soft);font-size:12px;margin-top:17px}pre{margin:12px 0 16px;background:#f0f3ee;border:1px solid #e3e8dd;padding:17px;border-radius:8px;white-space:pre-wrap;overflow-wrap:anywhere;color:#3d5949;font:12px/1.8 Consolas,monospace}.flash-layout{max-width:790px;margin:auto}.flash-card{background:#fff;border:1px solid var(--line);border-radius:16px;min-height:340px;padding:38px;text-align:center;display:flex;flex-direction:column;justify-content:center;box-shadow:0 13px 34px #21393206}.flash-card h2{font-size:25px;margin:28px 0 22px}.flash-card .answer{font-size:24px;color:var(--green);margin:10px 0}.flash-card pre{text-align:left}.card-top{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--muted);margin-bottom:15px}.flash-actions{display:flex;justify-content:center;gap:12px;margin:24px 0}.flash-actions button{min-width:110px}.blank-input{display:block;margin:15px auto;padding:11px;width:90%;max-width:430px;border:1px solid var(--line);border-radius:8px;text-align:center}.practice-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:20px}.question-list{max-height:700px;overflow:auto}.question-item{display:block;width:100%;text-align:left;padding:11px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;font-size:11px;font-weight:400}.question-item.active{background:#eaf0e2;border-left:3px solid var(--green)}.question-item small{font-size:9px;display:block;color:var(--muted)}.editor-panel{padding:0;overflow:hidden}.question-heading{padding:24px;border-bottom:1px solid var(--line)}.question-heading h2{font-size:17px;margin-top:12px}.editor-header{display:flex;justify-content:space-between;padding:11px 20px;background:#edf1e9;font-size:10px;letter-spacing:.5px}.editor{width:100%;display:block;resize:vertical;min-height:205px;background:#1e342d;color:#e8eddb;border:0;padding:23px;font:13px/1.9 Consolas,monospace;tab-size:2}.editor-actions{padding:14px 20px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}.editor-actions button{font-size:11px;padding:8px 12px}.editor-actions .next{margin-left:auto}.result-box{padding:0 23px 22px}.message{padding:12px 15px;border-radius:7px;background:var(--soft);font-size:12px;margin:10px 0}.message.error{background:#fff0eb;color:#9b493b}.message.success{background:#e7f1e2;color:#37633d}.table-wrap{overflow:auto;max-height:350px;border:1px solid var(--line);border-radius:7px;margin:10px 0}table{width:100%;border-collapse:collapse;font-size:11px;text-align:left;white-space:nowrap}th{position:sticky;top:0;background:#eaf0e6;color:#4f6952}th,td{padding:8px 12px;border-bottom:1px solid var(--line)}tr:nth-child(even) td{background:#f9faf6}.schema{font:11px/1.9 Consolas,monospace;color:var(--green)}details{margin:12px 0}summary{cursor:pointer;font-size:12px;font-weight:600;padding:7px 0}.warning{background:#fff7e7;color:#8c6a2c;padding:12px 14px;border-radius:7px;font-size:11px;border-left:3px solid #d4b674}.gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.gallery img{width:100%;max-height:240px;object-fit:contain;background:#f4f6f1}.gallery figure{margin:0;border:1px solid var(--line);border-radius:9px;padding:13px;background:white}.gallery figcaption{font-size:10px;color:var(--muted);margin-top:7px}.source-links{display:flex;gap:10px;flex-wrap:wrap;font-size:11px}.source-links a{text-decoration:underline;text-underline-offset:3px;color:var(--green)}.empty{text-align:center;padding:70px 20px;color:var(--muted)}.empty h2{color:var(--ink)}#toast{position:fixed;bottom:22px;right:25px;padding:12px 20px;border-radius:10px;background:var(--ink);color:white;box-shadow:0 4px 30px #0002;opacity:0;pointer-events:none;transition:.2s;z-index:20}#toast.show{opacity:1}footer{border-top:1px solid var(--line);padding:22px 46px;font-size:10px;color:#8b978d;display:flex;justify-content:space-between}.review-list{display:grid;gap:12px}.review-item{display:flex;align-items:center;gap:15px}.review-item p{margin:0;font-size:13px}.review-item button{margin-left:auto;white-space:nowrap;font-size:11px}.error-help{font-size:11px;color:#7f6551}a:focus-visible,button:focus-visible{outline:3px solid #b1ca7d}.screenreader{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
@media(min-width:1500px){main{padding-top:45px}.hero{min-height:285px}}@media(max-width:1150px){.sidebar{width:205px;padding:28px 16px}.workspace{margin-left:205px}main{padding:28px}.topbar{padding:0 28px}.home-columns{grid-template-columns:1fr 240px;gap:17px}.hero-copy{padding:25px}.hero h2{font-size:25px}.hero-code{font-size:10px;margin-right:22px}.stat{padding:14px}.stats{gap:10px}.practice-layout{grid-template-columns:190px 1fr}}@media(max-width:900px){.home-columns{grid-template-columns:1fr}.home-aside{display:grid;grid-template-columns:1fr 1fr;gap:16px}.hero{grid-template-columns:1.1fr 1fr}.hero h2{font-size:22px}.stat .stat-icon{display:none}.notes-grid{grid-template-columns:1fr}.practice-layout{grid-template-columns:1fr}.question-list{max-height:150px;border:1px solid var(--line);border-radius:8px}.gallery{grid-template-columns:1fr}}@media(max-width:650px){.sidebar{position:static;width:100%;padding:15px 18px;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:16px}.brand-icon{width:35px;height:35px;font-size:20px}.brand small{font-size:8px}.nav-label,.sidebar-bottom{display:none}.sidebar nav{display:flex;overflow:auto;margin-top:16px;gap:5px}.sidebar nav a{white-space:nowrap;padding:7px 10px;font-size:11px;gap:5px}.sidebar nav a>span{display:none}.sidebar nav b{display:none}.workspace{margin-left:0}.topbar{height:48px;padding:0 20px;font-size:10px}.course-badge{font-size:8px;padding:2px 8px}main{padding:25px 19px 40px}.page-heading{margin-bottom:21px}h1{font-size:25px}.hero{grid-template-columns:1fr}.hero-copy{padding:24px}.hero h2{font-size:25px}.hero-code{margin:0 26px 27px;transform:rotate(-1deg);font-size:11px}.stats{grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:25px}.stat strong{font-size:25px}.unit-grid{gap:10px}.unit{padding:15px}.unit h3{font-size:13px}.unit p{font-size:9px}.home-aside{grid-template-columns:1fr}.flash-card{padding:25px 20px;min-height:310px}.flash-card h2{font-size:21px}.flash-actions{gap:7px}.flash-actions button{min-width:0;flex:1;font-size:11px;padding:9px}.editor-actions .next{margin-left:0}.question-heading{padding:20px}.toolbar input{min-width:0;width:100%}footer{padding:20px;font-size:9px}footer span{display:none}.review-item{flex-wrap:wrap}.page-heading>.muted{display:none}}