:root{--bg:#f3f1ea;--card:#fffdf8;--ink:#242c27;--muted:#7c857f;--green:#2f6d50;--green-soft:#e3efe8;--green-line:#b9d5c4;--red:#b4473a;--red-soft:#fbe9e6;--red-line:#e3b4ac;--amber:#c98a2d;--amber-soft:#faf0dd;--line:#e6e0d3;--shadow:0 1px 2px rgba(38,48,43,.05), 0 8px 24px rgba(38,48,43,.07);--r:14px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}header{position:sticky;top:0;z-index:50;background:#26302b;color:#e8ede9;box-shadow:0 1px #00000026}.hrow{display:flex;align-items:center;gap:14px;padding:9px 20px;max-width:1400px;margin:0 auto;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:9px}.brand .logo{width:34px;height:34px;border-radius:9px;overflow:hidden;flex:0 0 auto}.brand .logo img{width:100%;height:100%;object-fit:cover;display:block}.brand .brand-name{font-size:16px;font-weight:800;white-space:nowrap}.brand small{display:block;color:#9fb2a6;font-weight:400;font-size:10.5px;letter-spacing:.04em}.search{flex:1;min-width:160px;position:relative;max-width:400px;margin:0 auto}.search input{width:100%;padding:8px 12px 8px 34px;border:1.5px solid #3a463f;border-radius:10px;background:#1d2521;font-size:13.5px;font-family:inherit;color:#e8ede9;outline:none;transition:border-color .15s}.search input:focus{border-color:var(--green)}.search input::placeholder{color:#6f8276}.search .ico{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:#6f8276;font-size:14px}.lang-switch{display:flex;gap:3px;background:#1d2521;border-radius:99px;padding:3px}.lang-switch button{border:0;background:transparent;color:#9fb2a6;font-size:12px;padding:4px 10px;border-radius:99px;cursor:pointer;font-family:inherit}.lang-switch button.active{background:var(--green);color:#fff;font-weight:700}.userbox{display:flex;align-items:center;gap:9px;background:#1d2521;border-radius:99px;padding:4px 6px 4px 4px}.userbox img{width:28px;height:28px;border-radius:50%}.userbox .nm{font-size:13px;font-weight:700;max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.logout-btn{border:1.5px solid #8a5149;background:transparent;color:#ffb3a6;font-size:12px;font-weight:700;padding:5px 12px;border-radius:99px;cursor:pointer;font-family:inherit;transition:all .15s;white-space:nowrap}.logout-btn:hover{background:#b4473a;color:#fff}.gbtn{display:flex;align-items:center;gap:8px;border:1.5px solid #3a463f;background:#1d2521;color:#e8ede9;border-radius:99px;padding:5px 13px;font-size:13px;cursor:pointer;font-family:inherit;font-weight:600}.gbtn:hover{border-color:#4b5c53}.app{display:flex;flex:1;width:100%;max-width:1400px;margin:0 auto}aside{width:256px;flex:0 0 256px;background:#26302b;color:#e8ede9;padding:18px 14px 40px;position:sticky;top:50px;height:calc(100vh - 50px);overflow-y:auto}.side-sec{margin-bottom:18px}.side-sec h3{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:#8fa297;margin-bottom:8px}.sec-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.sec-head h3{margin-bottom:0}.mini{border:0;background:transparent;color:#6f8276;font-size:10.5px;cursor:pointer;font-family:inherit;padding:2px 4px;border-radius:5px}.mini:hover{color:#ffb3a6;background:#3a2b28}.mode-switch{display:grid;grid-template-columns:1fr 1fr;gap:6px;background:#1d2521;border-radius:10px;padding:4px}.mode-switch button{border:0;background:transparent;color:#9fb2a6;padding:7px 0;border-radius:8px;font-size:13px;cursor:pointer;font-family:inherit;transition:all .15s}.mode-switch button.active{background:var(--green);color:#fff;font-weight:700}.stat-card{background:#1d2521;border-radius:12px;padding:12px 14px;display:grid;grid-template-columns:1fr 1fr;gap:10px}.stat .v{font-size:18px;font-weight:800;color:#fff}.stat .k{font-size:11px;color:#8fa297}.bar{height:6px;background:#1d2521;border-radius:99px;margin-top:10px;overflow:hidden}.bar i{display:block;height:100%;background:linear-gradient(90deg,#3d8a63,#7fae8f);border-radius:99px;transition:width .3s}.filters{display:flex;flex-direction:column;gap:5px}.fbtn{text-align:left;border:1px solid #333f39;background:#2a352f;color:#cdd9d2;padding:6px 10px;border-radius:8px;font-size:12.5px;cursor:pointer;font-family:inherit;transition:all .12s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.fbtn:hover{border-color:#4b5c53}.fbtn.active{border-color:var(--green);background:#234b39;color:#fff}.fbtn .cnt{margin-left:auto;float:right;font-size:10.5px;color:#8fa297}.fbtn.active .cnt{color:#bcd8c7}.side-btn{display:block;width:100%;border:1px solid #333f39;background:transparent;color:#cdd9d2;padding:7px;border-radius:8px;font-size:12.5px;cursor:pointer;font-family:inherit;margin-top:5px;transition:all .12s}.side-btn:hover{border-color:#4b5c53;color:#fff}.side-btn.danger:hover{border-color:#b4473a;color:#ffb3a6}.jumprow{display:flex;gap:5px}.jumprow input{flex:1;min-width:0;padding:6px 9px;border:1px solid var(--line);background:#f6f4ee;border-radius:7px;color:var(--ink);font-size:12px;font-family:inherit;outline:none}.jumprow input:focus{border-color:var(--green)}.nav-wrap{position:fixed;top:62px;right:14px;z-index:45;display:flex;flex-direction:column;align-items:flex-end;gap:8px}.nav-pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--green-line);background:#fff;color:var(--green);padding:7px 14px;border-radius:99px;font-size:12.5px;font-weight:700;cursor:pointer;font-family:inherit;box-shadow:var(--shadow);transition:all .12s}.nav-pill:hover{background:var(--green-soft)}.nav-pill.hide{display:none}.nav-panel{background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:10px 12px;max-height:calc(100vh - 130px);display:none;flex-direction:column;gap:8px;width:236px}.nav-panel.open{display:flex}.np-head{display:flex;justify-content:space-between;align-items:center}.np-head h3{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted)}.np-toggle{border:0;background:var(--bg);color:var(--muted);width:20px;height:20px;border-radius:6px;cursor:pointer;font-size:13px;line-height:1}.np-toggle:hover{color:var(--ink)}.navgrid{display:grid;grid-template-columns:repeat(6,1fr);gap:3px;overflow-y:auto;flex:1}.navcell{border:1px solid var(--line);background:#f6f4ee;color:var(--muted);font-size:10px;padding:5px 0;border-radius:5px;cursor:pointer;font-family:ui-monospace,Menlo,monospace;text-align:center;line-height:1;transition:all .1s}.navcell:hover{border-color:#b9cbbf;color:var(--ink)}.navcell.done{background:var(--green-soft);border-color:var(--green-line);color:var(--green)}.navcell.wrong{background:var(--red-soft);border-color:var(--red-line);color:var(--red)}.navcell.here{outline:2px solid #e8a33d;color:var(--ink)}.nav-empty{display:none;font-size:12px;color:var(--muted);text-align:center;padding:8px 0}.nav-empty.show{display:block}aside .foot{margin-top:16px;font-size:10.5px;color:#6f8276;line-height:1.5}main{flex:1;padding:20px 26px 60px;min-width:0}.page-title{font-size:clamp(1.25rem,2.5vw,1.8rem);line-height:1.3;margin:0 0 18px;color:var(--ink)}.legend{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.tag{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;padding:3px 9px;border-radius:99px;border:1px solid var(--line);background:var(--card);color:var(--muted)}.tag i{width:7px;height:7px;border-radius:50%;display:inline-block}.tag.hi i{background:var(--green)}.tag.mid i{background:var(--amber)}.tag.vis i{background:#7b8fd4}.tag.off i{background:#c98a2d}.tag.none i{background:#b0b6b1}.qcard{background:var(--card);border:1.5px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:20px 22px;margin-bottom:16px;transition:border-color .2s}.qcard.done-correct{border-color:var(--green-line)}.qcard.done-wrong{border-color:var(--red-line)}.qcard .qhead{display:flex;align-items:flex-start;gap:12px}.qid{flex:0 0 auto;font-family:ui-monospace,Menlo,monospace;font-size:12px;font-weight:700;color:#fff;background:var(--green);padding:3px 8px;border-radius:7px;letter-spacing:.02em}.qquiz{flex:0 0 auto;font-size:11.5px;color:var(--muted);background:#f0ece2;border:1px solid var(--line);padding:3px 8px;border-radius:7px}.qcat{flex:0 0 auto;font-size:11px;color:#5a6db0;background:#eceffb;padding:3px 8px;border-radius:7px}.star{flex:0 0 auto;border:0;background:transparent;font-size:17px;cursor:pointer;color:#c9c2b2;transition:transform .12s}.star:hover{transform:scale(1.2)}.star.on{color:#e8a33d}.qconf{margin-left:auto;font-size:11px;padding:3px 9px;border-radius:99px;white-space:nowrap}.qconf.hi{background:var(--green-soft);color:var(--green)}.qconf.mid{background:var(--amber-soft);color:var(--amber)}.qconf.vis{background:#eceffb;color:#5a6db0}.qconf.off{background:#fdf3d7;color:#a06f1d;border:1px solid #e8cf8f}.qconf.none{background:#eef0ec;color:#8a928d}.qtitle{font-size:15.5px;font-weight:700;line-height:1.5;margin:10px 0 0}.qimg{display:flex;justify-content:center;margin:14px 0 4px}.qimg img{max-width:240px;width:100%;border:1px solid var(--line);border-radius:11px;background:#fff;padding:8px}.opts{margin-top:14px;display:grid;gap:8px}.opt{display:flex;align-items:center;gap:11px;border:1.5px solid var(--line);border-radius:11px;padding:10px 13px;cursor:pointer;transition:all .15s;user-select:none}.opt:hover{border-color:#b9cbbf;background:#fbfcf8}.opt .letter{flex:0 0 auto;width:24px;height:24px;border-radius:8px;background:#f0ece2;display:grid;place-items:center;font-size:12.5px;font-weight:800;color:#5d665f}.opt .txt{font-size:14.5px}.opt:focus-within{outline:2px solid rgba(47,109,80,.3);outline-offset:2px}.opt.pick{border-color:var(--green);background:var(--green-soft)}.opt.pick .letter{background:var(--green);color:#fff}.opt.ok{border-color:var(--green);background:var(--green-soft)}.opt.ok .letter{background:var(--green);color:#fff}.opt.bad{border-color:var(--red);background:var(--red-soft)}.opt.bad .letter{background:var(--red);color:#fff}.opt.dim{opacity:.55}.mark{flex:0 0 auto;font-size:14px;font-weight:800;width:20px;text-align:center}.fb{margin-top:12px;border-radius:11px;padding:12px 14px;font-size:13.5px;display:none}.fb.show{display:block}.fb.right{background:var(--green-soft);border:1px solid var(--green-line)}.fb.wrong{background:var(--red-soft);border:1px solid var(--red-line)}.fb .ansline{font-weight:800;margin-bottom:5px}.fb.right .ansline{color:var(--green)}.fb.wrong .ansline{color:var(--red)}.fb .exp{color:#3d4a43}.ref{margin-top:10px;border-top:1px dashed var(--line);padding-top:8px}.ref-toggle{border:0;background:transparent;color:var(--muted);font-size:12.5px;cursor:pointer;font-family:inherit;padding:2px 0;display:inline-flex;align-items:center;gap:5px}.ref-toggle:hover{color:var(--green)}.ref-body{display:none;margin-top:6px;font-size:13px;color:#55615a;background:#f7f4ec;border:1px solid var(--line);border-radius:9px;padding:9px 12px;line-height:1.6}.ref-body.show{display:block}.ref-body .sec{font-weight:800;color:var(--green)}.banner{margin-bottom:18px;border-radius:var(--r);padding:16px 20px;display:none;font-size:14.5px}.banner.show{display:flex;align-items:center;gap:14px;justify-content:space-between}.banner.pass{background:var(--green-soft);border:1px solid var(--green-line)}.banner.fail{background:var(--red-soft);border:1px solid var(--red-line)}.banner.info{background:#eef2fb;border:1px solid #c9d4ef}.banner .score{font-size:26px;font-weight:800}.banner.pass .score{color:var(--green)}.banner.fail .score{color:var(--red)}.banner .sub{font-size:12.5px;color:var(--muted)}.banner button{border:1px solid currentColor;background:transparent;padding:7px 14px;border-radius:99px;cursor:pointer;font-size:13px;font-family:inherit}.banner.pass button{color:var(--green)}.banner.fail button{color:var(--red)}.banner.info button{color:#5a6db0}.exam-actions{position:sticky;bottom:14px;display:none;justify-content:center;gap:12px;margin-top:20px}.exam-actions.show{display:flex}.btn{border:0;background:var(--green);color:#fff;padding:11px 26px;border-radius:99px;font-size:14.5px;font-weight:700;cursor:pointer;font-family:inherit;box-shadow:0 4px 14px #2f6d5059;transition:transform .1s}.btn:hover{transform:translateY(-1px)}.btn.ghost{background:var(--card);color:var(--ink);border:1.5px solid var(--line);box-shadow:none;font-weight:600}.empty{padding:50px 20px;text-align:center;color:var(--muted);display:none}.empty.show{display:block}.pager{display:none;justify-content:center;align-items:center;gap:6px;flex-wrap:wrap;margin:22px 0 8px}.pager.show{display:flex}.pager .pg{border:1px solid var(--line);background:var(--card);color:var(--ink);min-width:34px;padding:7px 10px;border-radius:8px;font-size:13px;cursor:pointer;font-family:inherit}.pager .pg:hover{border-color:#b9cbbf}.pager .pg.active{background:var(--green);border-color:var(--green);color:#fff;font-weight:700}.pager .pg:disabled{opacity:.4;cursor:default}.pager .pg-info{font-size:12px;color:var(--muted);margin-left:6px}.toTop{position:fixed;bottom:22px;right:22px;width:44px;height:44px;border-radius:50%;background:var(--green);color:#fff;border:0;font-size:19px;cursor:pointer;box-shadow:0 4px 14px #00000040;display:none;z-index:46;transition:transform .12s}.toTop:hover{transform:translateY(-2px)}.toTop.show{display:block}footer{background:var(--card);border-top:1px solid var(--line);padding:16px 20px 26px;text-align:center;color:var(--muted);font-size:12px;line-height:1.8}footer b{color:var(--ink)}.modal-overlay{position:fixed;inset:0;background:#1e26228c;z-index:100;display:none;align-items:center;justify-content:center;padding:20px}.modal-overlay.show{display:flex}.modal{background:#fff;max-width:430px;width:100%;border-radius:18px;box-shadow:0 20px 60px #00000040;padding:28px 30px;text-align:center}.modal .m-logo{width:64px;height:64px;border-radius:18px;overflow:hidden;margin:0 auto 14px}.modal .m-logo img{width:100%;height:100%;object-fit:cover;display:block}.modal h2{font-size:20px;font-weight:800;margin-bottom:10px}.modal .m-body{font-size:13.5px;color:#4a554e;line-height:1.8;margin-bottom:20px;text-align:left}.modal .m-body b{color:var(--green)}.modal .btn{width:100%;padding:12px;font-size:14.5px}@media(max-width:860px){.app{flex-direction:column}aside{width:100%;flex:none;height:auto;position:static}.nav-wrap{display:none}main{padding:16px 12px 50px}header{position:static}.hrow{padding:8px 14px;gap:8px}.search{order:3;flex-basis:100%;max-width:none}}@media print{header,aside,.exam-actions,.legend,footer{display:none!important}body{background:#fff}.qcard{break-inside:avoid;box-shadow:none}}