:root{--bg:#f6f6f0;--paper:#fff;--ink:#252e26;--muted:#7b8278;--line:#e3e7dd;--green:#405e3c;--light:#eef3e9;--gold:#d8b76c;--red:#a8423d;--redbg:#fbefed;--radius:18px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:14px}button,input,select,textarea{font:inherit}button{cursor:pointer}button,input,select,textarea{outline-offset:4px}button:focus-visible,a:focus-visible{outline:3px solid var(--gold)}button{border:0;background:none;color:inherit}button:disabled{cursor:default;opacity:.4}a{color:var(--green)}.shell{display:grid;grid-template-columns:272px 1fr;min-height:100vh}.sidebar{background:#edf0e7;border-right:1px solid var(--line);padding:36px 22px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:12px;padding:0 10px;margin-bottom:42px}.brandmark{display:grid;place-items:center;width:39px;height:44px;background:var(--green);color:#fff;border-radius:7px 7px 18px 18px;font-size:21px}.brand strong{display:block;font-size:18px;letter-spacing:2px}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:2px;margin-top:6px}.navlabel{font-size:11px;letter-spacing:2px;color:var(--muted);padding:0 12px;margin-bottom:12px}.nav{display:grid;gap:8px}.nav button{display:flex;align-items:center;gap:12px;width:100%;padding:13px 15px;border-radius:10px;text-align:left;color:#667160}.nav button.active{color:white;background:var(--green);box-shadow:0 4px 10px #405e3c15}.nav .ico{font-size:18px;width:23px}.nav .count{margin-left:auto;font-size:11px;background:#ffffff24;padding:3px 7px;border-radius:5px}.sidefoot{margin-top:auto;padding:24px 12px 0;color:var(--muted);font-size:12px;line-height:1.9}.local{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-size:11px}.dot{width:6px;height:6px;border-radius:50%;background:#6d8d57}.sidefoot button{padding:0;text-decoration:underline;text-underline-offset:3px}.main{min-width:0;padding:0 46px 40px;max-width:1540px;width:100%;margin:auto}.topbar{height:88px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);color:var(--muted);font-size:12px}.crumb span{color:var(--ink);margin-left:9px}.date{letter-spacing:1px}.heading{display:flex;justify-content:space-between;align-items:flex-end;padding:33px 0 25px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--green);font-weight:700;margin-bottom:10px}h1{font-size:30px;letter-spacing:1px;margin:0 0 11px;font-weight:650}p{line-height:1.8}.sub{margin:0;color:var(--muted);font-size:13px}.mini-pill{border:1px solid var(--line);border-radius:30px;padding:9px 14px;color:#607255;font-size:12px;white-space:nowrap}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px}.stat{background:var(--paper);border:1px solid var(--line);border-radius:13px;padding:20px 22px}.stat-label{color:var(--muted);font-size:12px}.stat-value{font-size:28px;font-weight:600;margin-top:10px;letter-spacing:-1px}.stat-value small{font-size:12px;color:var(--muted);font-weight:400;letter-spacing:0;margin-left:5px}.stat .bar{height:3px;background:var(--light);margin-top:13px;border-radius:4px}.stat .bar i{display:block;height:100%;background:#6d885a;border-radius:4px}.practice-grid{display:grid;grid-template-columns:minmax(0,1fr) 238px;gap:23px}.filterbar{display:flex;align-items:center;gap:7px;margin-bottom:18px;flex-wrap:wrap}.filterbar button{padding:9px 13px;color:#6d7666;border-radius:7px;font-size:12px}.filterbar button.active{background:#e7ecdf;color:var(--green);font-weight:600}.question-card{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:28px 32px;min-height:464px}.question-top{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:11px;color:var(--muted)}.tag{background:var(--light);color:var(--green);padding:5px 9px;border-radius:5px;margin-right:8px}.star{font-size:18px;display:flex;gap:6px;align-items:center;color:#909784;padding:5px}.star.on{color:#9e7b30}.star small{font-size:11px}.question-title{font-size:20px;line-height:1.85;font-weight:550;margin:26px 0 24px;overflow-wrap:anywhere}.hint{font-size:12px;color:var(--muted);margin:0 0 15px}.options{display:grid;gap:12px}.option{display:flex;gap:15px;align-items:center;border:1px solid var(--line);border-radius:9px;min-height:57px;padding:12px 17px;text-align:left;line-height:1.7;background:#fff;transition:.15s}.option:not(:disabled):hover{border-color:#91a080;background:#f9faf6}.option:disabled{opacity:1}.option .letter{display:grid;place-items:center;border:1px solid #dde1d7;background:#f8f9f5;border-radius:6px;width:27px;height:28px;flex-shrink:0;font-size:12px;color:#7d8674}.option.selected{border-color:#829575;background:#f4f7ef}.option.selected .letter{background:var(--green);border-color:var(--green);color:#fff}.option.correct{border-color:#84a379;background:#eff6ec}.option.wrong{border-color:#cf938c;background:var(--redbg)}.option .opt-end{margin-left:auto;color:var(--green);font-size:16px}.option.wrong .opt-end{color:var(--red)}.question-actions{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:27px;padding-top:23px;border-top:1px solid #eef0e9}.btn{padding:11px 20px;border-radius:8px;font-size:13px;display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--green);color:white;border:1px solid var(--green);line-height:1.5}.btn:hover{filter:brightness(1.08)}.btn.secondary{background:white;color:var(--green);border-color:var(--line)}.btn.small{font-size:12px;padding:8px 12px}.text-btn{color:var(--muted);font-size:12px;padding:6px}.text-btn:hover{color:var(--green)}.action-right{display:flex;gap:8px}.answer{margin-top:22px;padding:18px 20px;border-radius:10px;background:var(--light);font-size:13px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere}.answer.bad{background:var(--redbg)}.answer strong{display:block;margin-bottom:5px;color:var(--green)}.answer.bad strong{color:var(--red)}.answer .muted{color:var(--muted);font-size:11px;margin-top:8px;display:block}.self-actions{display:flex;gap:10px;margin-top:15px;flex-wrap:wrap}.textbox{width:100%;border:1px solid var(--line);border-radius:9px;padding:15px;color:var(--ink);background:#fcfdf9;line-height:1.8;resize:vertical}.textbox:focus{outline:2px solid #9aaf89}.sidecard{min-width:0;background:#fff;border:1px solid var(--line);border-radius:13px;padding:21px;margin-bottom:16px}.sidecard h3{font-size:13px;margin:0 0 17px;font-weight:600}.row{display:flex;align-items:center;justify-content:space-between;gap:8px}.sidecard select{border:1px solid var(--line);background:#fafbf7;border-radius:6px;padding:7px 8px;color:#67725f;font-size:11px;max-width:120px}.progressline{height:4px;background:#edf0e7;border-radius:4px;margin:16px 0 12px;overflow:hidden}.progressline i{display:block;height:100%;background:#7f986b}.smalltext{font-size:11px;color:var(--muted);line-height:1.9}.grid-label{display:flex;gap:12px;margin:15px 0;font-size:10px;color:var(--muted)}.grid-label span:before{content:'';display:inline-block;height:7px;width:7px;border-radius:2px;background:#e5e8df;margin-right:4px}.grid-label .ok:before{background:#7f986b}.grid-label .bad:before{background:#c78d82}.number-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:7px}.number-grid button{min-width:0;padding:0;font-size:11px;aspect-ratio:1;border-radius:5px;background:#f2f4ed;color:#7b8373;border:1px solid transparent}.number-grid button.current{border-color:var(--green);color:var(--green);font-weight:bold}.number-grid button.ok{background:#dce8d3;color:#41613b}.number-grid button.bad{background:#f4dcd7;color:#a0574b}.pager{margin-top:12px}.pager button{font-size:12px;color:var(--green)}.tip-card{background:#e9eedf;border:0}.tip-card .tip-symbol{color:#688251;font-size:23px;margin-bottom:10px}.tip-card p{font-size:12px;color:#6e7c60;margin:0;line-height:1.9}.bottomnote{font-size:11px;color:#8c9384;margin:18px 2px;line-height:1.8}.empty{text-align:center;padding:70px 25px;border:1px solid var(--line);background:white;border-radius:16px}.empty .symbol{font-size:36px;color:#8a9a75}.empty h2{font-size:19px}.empty p{font-size:13px;color:var(--muted)}.searchbar{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap}.searchbar input{flex:1;min-width:190px;padding:13px 16px;border:1px solid var(--line);border-radius:9px;background:white}.searchbar select{border:1px solid var(--line);border-radius:9px;padding:10px;background:white;color:var(--green)}.bank-list{display:grid;gap:12px}.bank-item{background:white;border:1px solid var(--line);padding:21px 24px;border-radius:12px}.bank-item .title{display:block;font-size:15px;line-height:1.8;text-align:left;padding:0;margin:12px 0;width:100%}.bank-item .bank-actions{display:flex;gap:15px;align-items:center}.bank-item details{font-size:13px;line-height:1.9;white-space:pre-wrap}.bank-item summary{cursor:pointer;color:var(--green);font-size:12px}.bank-option{color:var(--muted);font-size:12px;line-height:1.8}.list-pager{display:flex;justify-content:center;gap:20px;align-items:center;padding:24px}.exam-setup{background:var(--green);border-radius:18px;padding:36px;color:white;display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px}.exam-setup h2{font-size:25px;margin:10px 0}.exam-setup p{color:#dae4d3;font-size:13px}.exam-setup .btn{background:#e8efdc;color:var(--green);border-color:#e8efdc}.exam-setup select{background:#ffffff18;color:white;border:1px solid #ffffff50;padding:9px;border-radius:6px}.exam-setup option{color:var(--ink);background:white}.exam-info{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}.exam-info .sidecard{padding:26px}.result{background:white;border:1px solid var(--line);border-radius:18px;padding:40px;text-align:center}.score{font-size:70px;color:var(--green);letter-spacing:-3px;margin:15px}.score small{font-size:20px;color:var(--muted);letter-spacing:0}.result p{color:var(--muted)}.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:#293b28;color:white;border-radius:8px;padding:12px 22px;box-shadow:0 6px 24px #0002;z-index:10;font-size:13px}.hidden{display:none!important}.timer{font-variant-numeric:tabular-nums;color:var(--green);font-weight:bold}.timer.urgent{color:var(--red)}.storage-alert{background:#fff0d4;padding:10px 15px;border-radius:8px;font-size:12px;margin-bottom:15px}.modal-back{position:fixed;inset:0;background:#23302166;z-index:50;display:grid;place-items:center;padding:20px}.modal{width:100%;max-width:440px;background:white;padding:28px;border-radius:16px}.modal h2{font-size:20px}.modal p{color:var(--muted);font-size:13px}.modal .action-right{justify-content:flex-end;margin-top:25px}footer{text-align:center;font-size:10px;color:#a0a692;margin-top:26px;letter-spacing:1px}
@media(min-width:1450px){.main{padding-left:65px;padding-right:65px}.practice-grid{grid-template-columns:minmax(0,1fr) 265px}.question-card{padding:36px 42px}.question-title{font-size:22px}}@media(max-width:1100px){.shell{grid-template-columns:250px 1fr}.sidebar{padding:30px 15px}.main{padding:0 25px 30px}.practice-grid{grid-template-columns:minmax(0,1fr)}.practice-aside{display:grid;grid-template-columns:1fr 1fr;gap:16px}.stat{padding:16px}.question-card{padding:25px}.sidecard{margin-bottom:0}.exam-info{gap:12px}.exam-info .sidecard{padding:20px}}@media(max-width:740px){.shell{display:block}.sidebar{position:static;height:auto;padding:20px 18px 12px;border-right:0;border-bottom:1px solid var(--line)}.brand{margin:0 0 20px;padding:0}.brand strong{font-size:17px}.brand small{display:none}.brandmark{width:30px;height:33px;font-size:17px}.navlabel,.sidefoot{display:none}.nav{display:flex;gap:4px;overflow-x:auto}.nav button{width:auto;white-space:nowrap;font-size:12px;padding:9px 10px;gap:4px}.nav .ico{font-size:14px;width:18px}.nav .count{display:none}.sidefoot{display:block;padding:12px 0 0;font-size:11px}.sidefoot p,.sidefoot br,.sidefoot .local{display:none}.sidefoot button{margin-right:8px}.main{padding:0 18px 25px}.topbar{height:52px}.date{font-size:10px}.heading{padding:25px 0 21px}h1{font-size:25px}.mini-pill{display:none}.mini-pill:has(.timer){display:inline-flex;padding:8px;font-size:10px}.stats{grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:22px}.stat{padding:14px 17px}.stat-value{font-size:25px}.stat .bar{margin-top:9px}.filterbar{gap:2px}.filterbar button{padding:8px 10px}.question-card{padding:22px 19px;min-height:430px}.question-title{font-size:18px;margin-top:24px}.question-actions{gap:6px}.btn{padding:10px 13px;font-size:12px}.action-right{gap:6px}.practice-aside{grid-template-columns:1fr}.tip-card{display:none}.exam-setup{grid-template-columns:1fr;padding:27px}.exam-info{grid-template-columns:1fr}.result{padding:25px 15px}.number-grid{grid-template-columns:repeat(10,minmax(0,1fr))}.bank-item{padding:18px}.star small{display:none}.question-top{font-size:10px}.topbar .local{font-size:10px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}