:root{--paper:#f5f1e7;--surface:#fffdf7;--ink:#26362d;--muted:#6b756b;--green:#203d30;--green-dark:#152b22;--gold:#c6ab6d;--red:#9b3f38;--line:#dcdccd;--serif:"STSong","SimSun",serif;--sans:"Microsoft YaHei","PingFang SC",system-ui,sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.65 var(--sans)}[hidden]{display:none!important}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{min-height:42px;padding:9px 15px;border:1px solid #aeb9ac;border-radius:5px;background:transparent;color:var(--ink);cursor:pointer;font-weight:500}button:hover{background:#213d300a;border-color:var(--green)}button:disabled{opacity:.48;cursor:not-allowed}input,select{width:100%;min-height:44px;padding:10px 12px;border:1px solid #b9c1b5;border-radius:5px;background:var(--surface);color:var(--ink)}input[readonly]{background:#edf0e8;color:#65715f}input[type=file]{padding:10px}input[type=file]::file-selector-button{font:inherit;padding:6px 10px;margin-right:12px;border:1px solid #c7cdbf;border-radius:3px;background:#f1f3eb;color:var(--ink)}label{display:block;font-size:12px;font-weight:600;margin-bottom:6px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,.table-scroll:focus-visible{outline:3px solid var(--gold);outline-offset:3px}a{color:var(--green);text-underline-offset:3px}p{margin:0 0 12px}h1,h2,h3{color:var(--ink);margin:0}h1{font:500 30px/1.4 var(--serif);letter-spacing:.05em}h2{font:500 22px/1.5 var(--serif);letter-spacing:.03em}h3{font-size:15px;font-weight:600}small{font-size:11px}.primary{background:var(--green);border-color:var(--green);color:#fff9e8}.primary:hover{background:#31523e;color:#fff9e8}.danger-outline{color:var(--red);border-color:#c9968e}.danger-outline:hover{background:#9b3f380b;border-color:var(--red)}.danger-fill{background:var(--red);border-color:var(--red);color:white}.danger-fill:hover{background:#80312d;color:white}.full{width:100%}.text-button{border-color:transparent;color:var(--muted);font-size:12px}.muted{color:var(--muted);font-size:12px;line-height:1.9}.eyebrow{font-size:10px;letter-spacing:.13em;color:#897242;margin:0 0 8px}.field-hint{display:block;color:var(--muted);font-size:11px;line-height:1.85;margin:7px 0 0}.form-status{font-size:12px;line-height:1.8;white-space:pre-line;overflow-wrap:anywhere;margin:12px 0;min-height:0}.form-status:empty{display:none}.form-status[data-tone=error]{color:#963c32}.form-status[data-tone=success]{color:#315b3b}.form-status[data-tone=loading]{color:#7b6b44}.button-row{display:flex;gap:10px;flex-wrap:wrap}.skip-link{position:fixed;top:-80px;left:12px;z-index:100;background:var(--gold);padding:10px}.skip-link:focus{top:10px}.boot-view{min-height:100svh;display:grid;place-items:center;background:var(--green-dark);color:#dbc88d;font-size:13px}.auth-view{min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--green-dark);padding:32px 20px;color:#e9dfc8}.auth-brand{display:flex;gap:14px;align-items:center;margin-bottom:27px}.brand-mark{display:grid;place-items:center;width:39px;height:46px;border:1px solid var(--gold);font:24px var(--serif);color:var(--gold);border-radius:2px 6px 6px 2px}.auth-brand p{font:20px/1.5 var(--serif);letter-spacing:.08em;margin:0}.auth-brand small{font:10px var(--sans);letter-spacing:.11em;color:#acb9a9}.auth-card{width:100%;max-width:390px;padding:33px;background:var(--surface);color:var(--ink);border-radius:7px;border-top:3px solid var(--gold);box-shadow:0 20px 60px #0003}.auth-card h1{font-size:29px;margin-bottom:8px}.auth-card form{margin-top:24px}.auth-card label:not(:first-child){margin-top:17px}.auth-card form>.full{margin-top:12px}.auth-card .form-status{margin-bottom:0}.quiet-link{display:block;text-align:center;font-size:11px;margin-top:19px;color:var(--muted)}.auth-foot{font-size:10px;color:#a7b6a4;margin:19px 0 0}.admin-shell{display:grid;grid-template-columns:225px minmax(0,1fr);min-height:100svh}.sidebar{position:sticky;top:0;height:100svh;display:flex;flex-direction:column;background:var(--green-dark);color:#e8dfc8;padding:26px 19px 20px}.sidebar-brand{display:flex;align-items:center;gap:11px;color:#e8dfc8;text-decoration:none;font:17px var(--serif);letter-spacing:.03em}.sidebar-brand small{display:block;font:10px var(--sans);color:#aebca9;margin-top:5px;letter-spacing:.1em}.sidebar .brand-mark{width:33px;height:42px;font-size:22px;flex-shrink:0}.sidebar-body{margin-top:34px}.sidebar-label{font-size:10px;color:#b5c1ac;letter-spacing:.06em}.sidebar select{background:#233c2d;border-color:#6c80655c;color:#e8dfc8;font-size:12px;padding:9px 8px;min-height:42px}.sidebar-note{font-size:10px;color:#a6b69f;margin:10px 0;line-height:1.9}.section-nav{display:grid;gap:5px;margin-top:27px}.section-nav button{text-align:left;border:0;border-radius:4px;color:#cad5c1;padding:13px 12px;font-size:13px;background:none}.section-nav button span{display:block;color:#8fa28a;font-size:9px;margin-top:2px;letter-spacing:.04em}.section-nav button[aria-current=page]{background:#c6ab6d;color:#213a2c}.section-nav button[aria-current=page] span{color:#4e5a3d}.section-nav button:hover{background:#ffffff0d}.section-nav button[aria-current=page]:hover{background:#d0b779}.sidebar-foot{margin-top:auto;padding-top:25px;display:flex;flex-wrap:wrap;gap:6px;border-top:1px solid #ffffff14}.sidebar-foot p{width:100%;font-size:11px;color:#c3cfb9;margin:0 0 8px}.sidebar-foot button{font-size:10px;min-height:33px;padding:6px 9px;color:#aebfa6;border-color:#7f927358}.sidebar-foot a{width:100%;color:#aab89f;font-size:10px;text-decoration:none;margin-top:11px}.workspace{min-width:0;padding:33px clamp(20px,3.6vw,55px) 24px;max-width:1600px;width:100%;margin:auto;outline:none}.workspace-head{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid #bac5b542;padding-bottom:24px;margin-bottom:26px}.workspace-head h1{font-size:31px}.workspace-head button{font-size:11px;min-height:38px}.status-banner{background:#ece9dd;border-left:3px solid var(--gold);border-radius:0 4px 4px 0;padding:12px 15px;font-size:12px;white-space:pre-line;overflow-wrap:anywhere;margin-bottom:20px}.status-banner[data-tone=error]{background:#f5e7e1;border-color:var(--red);color:#853c32}.status-banner[data-tone=success]{background:#e7eee1;border-color:#6c875f}.work-panel{background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:24px;box-shadow:0 3px 13px #213d3003}.panel-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:21px}.panel-heading p{margin:6px 0 0}.panel-heading button{font-size:11px;flex-shrink:0}.summary-strip{display:flex;gap:0;margin:0 0 24px;padding:17px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.summary-strip>div{flex:1;border-right:1px solid var(--line);padding:0 23px}.summary-strip>div:first-child{padding-left:0}.summary-strip>div:last-child{border-right:0}.summary-strip dt{font-size:10px;color:var(--muted)}.summary-strip dd{font:30px/1.2 Georgia,serif;margin:5px 0 0;color:var(--green)}.filter-row{display:flex;gap:12px;align-items:end;margin-bottom:19px}.filter-row>div:first-child{width:165px}.search-field{flex:1;min-width:0}.filter-row input,.filter-row select{font-size:12px}.filter-row button{min-height:44px;font-size:12px;padding:10px 15px}.table-scroll{max-width:100%;overflow:auto;border:1px solid var(--line);border-radius:4px;background:var(--surface);overscroll-behavior-inline:contain}table{width:100%;border-collapse:collapse;text-align:left;font-size:12px}th{font-weight:500;color:#5d6d59;background:#edf0e7;font-size:10px;letter-spacing:.02em;white-space:nowrap}th,td{padding:13px 12px;border-bottom:1px solid #e5e7dc;vertical-align:middle}tbody tr:last-child td{border-bottom:0}tbody tr:hover td{background:#f5f5ec}caption{text-align:left;background:#fffdf7;padding:10px 12px;font-size:10px;color:var(--muted);border-bottom:1px solid var(--line)}abbr{text-decoration:none;cursor:help}td .student-name{font-weight:600;display:block;color:#2d4233}td .student-no{display:block;font:11px/1.8 ui-monospace,Consolas,monospace;color:#7a826e;white-space:nowrap}.progress-table{min-width:990px}.progress-table th:nth-child(n+3):nth-child(-n+11),.progress-table td:nth-child(n+3):nth-child(-n+11){text-align:center;padding-left:8px;padding-right:8px}.progress-table .student-col,.progress-table td:first-child{position:sticky;left:0;z-index:1;min-width:140px;background:var(--surface);box-shadow:1px 0 0 #e5e7dc}.progress-table .student-col{background:#edf0e7;z-index:2}.progress-table tbody tr:hover td:first-child{background:#f5f5ec}.station-dot{display:inline-grid;place-items:center;font-style:normal;color:#b8bdb0;font-size:24px;width:26px;height:28px;line-height:1}.station-dot.done{font-size:13px;color:var(--red)}.completion-count{font:13px ui-monospace,Consolas,monospace;color:var(--green)}.row-actions{display:flex;gap:6px;white-space:nowrap}.row-actions button{font-size:10px;padding:5px 8px;min-height:33px}.account-tag{display:inline-block;font-size:9px;line-height:1.6;padding:1px 5px;border:1px solid #d9d7c9;border-radius:3px;color:#84764d;margin-top:4px}.account-tag.disabled{color:var(--red);border-color:#dec1b8}.empty-cell{text-align:center!important;white-space:normal!important;padding:44px 20px!important;color:var(--muted);font-size:12px;line-height:1.9}.table-legend{display:flex;align-items:center;gap:17px;flex-wrap:wrap;font-size:10px;color:var(--muted);margin:14px 0 0}.table-legend>span{display:flex;align-items:center;gap:5px}.table-legend .station-dot{width:14px;height:18px}.table-legend>span:last-child{margin-left:auto}.import-guide{padding:18px 20px;background:#eef1e8;border-left:3px solid var(--gold);border-radius:0 4px 4px 0;font-size:12px}.import-guide p{margin-bottom:12px}.import-guide button{font-size:11px;min-height:36px;padding:7px 12px}.import-form{max-width:650px;margin:28px 0 17px}.import-form>button{margin-top:17px}.preview-panel{border-top:1px solid var(--line);padding-top:24px;margin-top:27px}.preview-panel .table-scroll{max-height:370px}.preview-panel #confirm-import-button{margin-top:19px}.preview-panel .student-no{font-family:ui-monospace,Consolas,monospace}.credential-panel{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 24px;border:1px solid #baa56c;background:#f2e8cd;border-radius:6px;margin-bottom:23px}.credential-panel h2{font-size:21px;margin-bottom:7px}.credential-panel p:not(.eyebrow){font-size:11px;line-height:1.9;margin:0;color:#6e603f}.credential-panel button{font-size:12px;flex-shrink:0}.credential-panel .eyebrow{font-size:9px}.create-activity{display:flex;align-items:end;gap:12px;max-width:730px;padding:20px;background:#eef1e8;border-radius:4px}.create-activity>div{flex:1}.create-activity input{font-size:12px}.create-activity button{min-height:44px;font-size:12px}.activity-list{display:grid;gap:0;margin-top:24px;border:1px solid var(--line);border-radius:4px}.activity-entry{display:flex;align-items:center;gap:13px;padding:17px;border-bottom:1px solid var(--line)}.activity-entry:last-child{border-bottom:0}.activity-entry.is-current{background:#f0f2e7}.activity-entry>div{flex:1;min-width:0}.activity-entry h3{overflow-wrap:anywhere;font-size:13px}.activity-entry p{margin:4px 0 0;font-size:10px;color:var(--muted)}.activity-entry>button{font-size:10px;min-height:34px;padding:6px 11px;flex-shrink:0}.activity-status-tag{padding:3px 8px;border-radius:3px;font-size:10px;color:#6e754d;background:#f0efdd;white-space:nowrap}.activity-status-tag.active{background:#e0ebd7;color:#325539}.activity-status-tag.closed{background:#e9e9e1;color:#7b8074}.activity-controls{border-top:1px solid var(--line);margin-top:27px;padding-top:22px}.activity-controls>p{margin-top:8px;max-width:650px}.activity-controls .button-row{margin:16px 0 13px}.workspace-foot{display:flex;justify-content:space-between;gap:14px;margin-top:24px;font-size:9px;color:#86907f}.workspace-foot a{font-size:10px;color:#78836c}.confirm-dialog{width:min(440px,calc(100% - 32px));border:1px solid #bdc5b5;border-radius:7px;background:var(--surface);padding:28px;color:var(--ink);box-shadow:0 20px 70px #0003}.confirm-dialog::backdrop{background:#11251ed9}.confirm-dialog h2{font-size:24px}.confirm-dialog #confirm-description{font-size:13px;line-height:1.9;white-space:pre-line;overflow-wrap:anywhere;margin:14px 0 24px}.confirm-dialog .button-row{justify-content:flex-end}.noscript{position:fixed;inset:0;display:grid;place-items:center;padding:25px;background:var(--green-dark);color:#e8dfc8}
@media(min-width:1500px){.workspace{padding-right:60px;padding-left:60px}.progress-table{min-width:1060px}}
@media(max-width:1050px){.admin-shell{grid-template-columns:195px minmax(0,1fr)}.sidebar{padding:22px 14px}.sidebar-brand{font-size:15px;gap:9px}.workspace{padding:27px 20px 20px}.work-panel{padding:20px}.panel-heading{flex-wrap:wrap;gap:13px}.filter-row{flex-wrap:wrap}.filter-row>div:first-child{width:145px}.filter-row .search-field{min-width:180px}.table-legend>span:last-child{margin-left:0;width:100%}.credential-panel{align-items:flex-start;flex-direction:column;gap:15px}.create-activity{flex-wrap:wrap}.create-activity>div{min-width:180px}}
@media(max-width:760px){.admin-shell{display:block}.sidebar{position:static;height:auto;padding:19px 20px 0;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:0 17px}.sidebar-brand{font-size:17px;align-self:start}.sidebar-brand .brand-mark{width:31px;height:39px}.sidebar-body{grid-column:1/-1;margin:19px 0 0}.sidebar-label{font-size:9px}.sidebar select{font-size:12px}.sidebar-note{margin:7px 0}.section-nav{display:flex;gap:5px;margin:14px -4px 0}.section-nav button{flex:1;text-align:center;font-size:12px;min-height:45px;padding:10px 8px;border-radius:5px 5px 0 0}.section-nav button span{display:none}.sidebar-foot{grid-row:1;grid-column:2;border:0;padding:0;margin:0;max-width:117px;gap:5px;justify-content:flex-end;align-content:start}.sidebar-foot p,.sidebar-foot a{display:none}.sidebar-foot button{font-size:9px;min-height:31px;padding:5px 7px}.workspace{padding:24px 15px 20px}.workspace-head{padding-bottom:18px;margin-bottom:20px;gap:12px}.workspace-head h1{font-size:28px}.workspace-head .eyebrow{font-size:9px;letter-spacing:.06em}.workspace-head button{font-size:10px;padding:8px 11px}.work-panel{padding:20px 15px;border-radius:6px}.panel-heading h2{font-size:22px}.panel-heading p{font-size:11px}.panel-heading>button{font-size:10px;min-height:37px}.summary-strip{margin-bottom:20px;padding:15px 0}.summary-strip>div{padding:0 15px}.summary-strip dd{font-size:27px}.summary-strip dt{font-size:9px}.filter-row{display:grid;grid-template-columns:1fr 1fr;gap:12px 9px}.filter-row>div:first-child{width:auto;grid-column:1/-1}.filter-row .search-field{min-width:0;grid-column:1/-1}.filter-row input,.filter-row select{font-size:12px}.filter-row button{min-height:40px;padding:8px 12px}.progress-table .student-col,.progress-table td:first-child{min-width:121px}.table-scroll{border-radius:3px}.table-legend{gap:10px 16px;line-height:1.8}.table-legend>span:last-child{font-size:9px}.credential-panel{padding:19px 17px}.credential-panel button{width:100%}.create-activity{padding:16px;display:block}.create-activity button{width:100%;margin-top:13px}.activity-entry{padding:14px 12px;gap:9px;flex-wrap:wrap}.activity-entry>div{min-width:160px}.activity-entry .activity-status-tag{order:-1}.activity-entry>button{margin-left:auto}.activity-controls .button-row>button{flex:1;font-size:11px}.import-guide{padding:16px;font-size:11px}.import-guide .button-row{gap:8px}.import-guide button{flex:1;font-size:10px;padding:7px 9px}.import-form input{font-size:12px}.import-form>button,#confirm-import-button{width:100%}.preview-panel .panel-heading{gap:10px}.preview-panel th,.preview-panel td{white-space:nowrap}.auth-view{padding:28px 18px}.auth-card{padding:28px 25px}.auth-brand{margin-bottom:23px}.confirm-dialog{padding:24px}.confirm-dialog .button-row>button{flex:1}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}