:root{--red:#8d2538;--red-dark:#6d1829;--cream:#f7f5f0;--ink:#27282a;--muted:#85817b;--line:#e8e3da;--green:#47705a;--serif:'Songti SC','Noto Serif CJK SC','SimSun',serif}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a,input,select{ -webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:default}button:focus-visible,a:focus-visible{outline:3px solid #b67682;outline-offset:4px}.student-shell{max-width:1120px;margin:auto;padding:0 48px}.brand{height:108px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand-lockup{display:flex;align-items:center;gap:13px;font-weight:650;letter-spacing:.8px}.brand-mark{height:44px;width:44px;display:grid;place-content:center;border:1px solid var(--red);color:var(--red);font-family:Georgia,serif;font-size:34px;position:relative}.brand-mark>span{position:absolute;right:5px;bottom:1px;font-size:22px}.brand-lockup small{display:block;color:var(--muted);font-size:10px;font-weight:400;letter-spacing:3px;margin-top:6px}.header-note{font-size:12px;color:var(--muted);letter-spacing:2px}.course-heading{padding:44px 0 32px}.eyebrow,.section-kicker{font-size:10px;letter-spacing:2px;color:var(--red);font-weight:650}.course-heading h1{font-family:var(--serif);font-size:38px;line-height:1.45;letter-spacing:1px;margin:14px 0}.course-heading h1 span{font-weight:400}.venue{color:#716c65;display:flex;align-items:center;gap:8px}.pin{font-size:23px;color:var(--red)}.student-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:64px;padding-bottom:55px}.card{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 8px 35px #372b1610}.bind-card{padding:32px}.card h2{font-family:var(--serif);font-size:26px;margin:13px 0 9px}.card p{color:var(--muted);line-height:1.8}form{margin-top:24px}label{display:block;font-size:12px;color:#5d5752;margin-bottom:18px}input,select{display:block;width:100%;height:48px;border:1px solid var(--line);border-radius:7px;padding:0 14px;margin-top:8px;color:var(--ink);background:#fff;outline:none;min-width:0}input:focus,select:focus{border-color:var(--red);box-shadow:0 0 0 3px #8d253812}input::placeholder{color:#aaa39c}input[type=checkbox]{width:18px;height:18px;accent-color:var(--red)}.button{background:var(--red);border:1px solid var(--red);color:#fff;border-radius:7px;min-height:46px;padding:11px 20px;font-weight:550;display:inline-flex;align-items:center;justify-content:center;gap:12px}.button:hover{background:var(--red-dark)}.button:disabled{background:#eae5df;border-color:#eae5df;color:#958d85}.button.full{width:100%}.button.full span{margin-left:auto}.button.secondary{color:var(--red);background:transparent;border-color:#d9c3c6}.button.secondary:hover{background:#f8eeee}.button.small{min-height:34px;padding:7px 12px;font-size:12px}.form-foot{font-size:11px;line-height:1.8!important;margin:18px 0 0!important;color:var(--muted)}.form-error{color:#a72d38;font-size:13px;line-height:1.6;margin-top:12px}.form-error:empty{display:none}.side-column{padding-top:13px}.schedule-head h2{font-family:var(--serif);font-size:25px;letter-spacing:1px;margin:12px 0 25px}.journey-day{display:flex;gap:21px;position:relative;padding-bottom:30px}.journey-day:not(:last-child):before{position:absolute;content:'';left:18px;top:38px;height:calc(100% - 40px);border-left:1px solid #dad4c9}.day-number{display:grid;place-content:center;border:1px solid #dcd5ca;border-radius:50%;width:37px;height:37px;font-family:Georgia,serif;color:#9a7960;flex-shrink:0}.journey-day>div{flex:1}.journey-day h3{font-size:14px;margin:9px 0 15px;font-weight:600}.journey-day h3 small{font-size:11px;color:var(--muted);font-weight:400;margin-left:12px}.day-sessions{display:flex;gap:10px}.day-sessions>span{padding:8px 11px;border-radius:5px;background:#eeeae3;color:#79736a;font-size:11px;white-space:nowrap}.day-sessions b{margin-left:7px;font-weight:500;color:#4c4945}.day-sessions>span.complete{background:#e4ede6;color:var(--green)}.note-block{display:flex;gap:13px;padding-top:20px;border-top:1px solid var(--line);font-size:12px;line-height:1.8}.note-block>span{color:var(--red);font-size:18px}.note-block strong{font-weight:550}.note-block p{color:var(--muted);margin:6px 0}.footer{border-top:1px solid var(--line);padding:25px 0 35px;display:flex;justify-content:space-between;color:var(--muted);font-size:10px;letter-spacing:1px}.footer a:hover{color:var(--red)}.identity{display:flex;align-items:center;gap:13px;margin-bottom:25px}.avatar{display:grid;place-content:center;background:#eadadd;color:var(--red);border-radius:50%;height:46px;width:46px;font-family:var(--serif);font-weight:600}.identity strong{font-size:18px}.identity p{font-size:12px;color:var(--muted);margin:5px 0 0}.identity p span{padding:0 5px}.identity-check{margin-left:auto;color:var(--green);font-size:11px}.tabs{display:flex;border-bottom:1px solid var(--line);gap:30px;margin-bottom:22px}.tabs button{background:none;border:0;padding:0 0 14px;color:var(--muted)}.tabs .selected{color:var(--red);border-bottom:2px solid var(--red);font-weight:600}.tabs span{font-size:10px;margin-left:5px}.checkin-card,.records-card{padding:25px}.card-top{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:12px}.badge{border-radius:4px;padding:6px 9px;background:#f1ece6;color:#796959;font-size:11px;white-space:nowrap}.badge.live{background:#e8f0e9;color:var(--green)}.muted{color:var(--muted)}.clock-display{font-size:62px;letter-spacing:-2px;font-family:Georgia,serif;text-align:center;margin:36px 0 25px}.clock-display small{display:block;font-family:inherit;font-size:12px;letter-spacing:0;color:var(--muted);margin-top:12px}.time-window{background:#f7f5f0;border-radius:6px;padding:13px;display:flex;justify-content:space-between;font-size:12px;margin-bottom:22px}.time-window span{color:var(--muted)}.time-window strong{font-weight:500}.checkin-card .form-foot{text-align:center}.checkin-button{min-height:52px}.success-box{text-align:center;padding:5px}.success-box>span{display:inline-grid;place-content:center;width:42px;height:42px;border-radius:50%;background:#e7efe9;color:var(--green);font-size:25px}.success-box h2{color:var(--green);font-size:22px}.success-box p{font-size:12px}.record-row{display:flex;gap:12px;align-items:center;padding:17px 0;border-bottom:1px solid var(--line)}.record-row:last-child{border:0}.record-row strong{font-size:13px}.record-row p{font-size:11px;margin:5px 0 0}.record-row>span:last-child{margin-left:auto;text-align:right;font-size:11px}.record-row small{display:block;margin-top:5px;color:var(--muted)}.record-icon{width:28px;height:28px;border-radius:50%;background:#f0ece6;display:grid;place-content:center;color:#94877a}.record-icon.done{background:#e5eee7;color:var(--green)}.green{color:var(--green)}.loading,.empty{padding:60px 20px;text-align:center;color:var(--muted)}#toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(30px);padding:13px 20px;background:#282829;color:white;border-radius:8px;opacity:0;pointer-events:none;transition:.2s;z-index:100;max-width:90%;font-size:13px}#toast.show{opacity:1;transform:translateX(-50%)}
/* Teacher workspace */
.admin-shell{max-width:1280px;margin:auto;padding:0 40px}.admin-header{height:90px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.header-links{display:flex;gap:18px;align-items:center;color:var(--muted);font-size:12px}.text-button{border:0;background:none;color:var(--red);padding:6px;cursor:pointer}.admin-title{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin:34px 0 26px}.admin-title h1{font-family:var(--serif);font-size:30px;margin:10px 0}.admin-title p{color:var(--muted);font-size:12px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:30px}.stat{padding:20px 24px;background:#fff;border:1px solid var(--line);border-radius:9px}.stat span{display:block;color:var(--muted);font-size:11px}.stat strong{display:block;font-family:Georgia,serif;font-size:35px;font-weight:400;margin-top:10px}.stat small{font-family:inherit;font-size:12px;color:var(--muted);margin-left:8px}.admin-tabs{display:flex;gap:28px;border-bottom:1px solid var(--line);margin-bottom:24px;overflow:auto;white-space:nowrap}.admin-tabs button{background:transparent;border:0;padding:0 0 15px;color:var(--muted)}.admin-tabs button.active{color:var(--red);border-bottom:2px solid var(--red);font-weight:600}.toolbar{display:flex;justify-content:space-between;gap:14px;margin-bottom:18px;align-items:center}.toolbar input{max-width:270px;margin:0;height:40px}.toolbar select{width:auto;margin:0;height:40px}.toolbar>div{display:flex;gap:10px;align-items:center}.table-wrap{overflow:auto;background:white;border:1px solid var(--line);border-radius:10px;margin-bottom:25px}table{border-collapse:collapse;width:100%;font-size:12px;white-space:nowrap}th{background:#f0ece6;color:#797069;font-weight:500;text-align:left;padding:15px 18px;border-bottom:1px solid var(--line)}td{padding:14px 18px;border-bottom:1px solid #f0ede7}tr:last-child td{border-bottom:0}td strong{font-weight:550}.cell-state{font-size:11px;border-radius:4px;padding:4px 7px;background:#f2f0eb;color:#99918a}.cell-state.normal{background:#e8efe9;color:var(--green)}.cell-state.late,.cell-state.manual{background:#f8ecd8;color:#a4762b}.cell-state.absent{background:#f8e8e9;color:#a04550}.login-wrap{max-width:390px;margin:100px auto}.login-wrap .card{padding:30px}.login-wrap h1{font-family:var(--serif);font-size:28px}.settings-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px}.settings-card{padding:26px;min-width:0}.settings-card h2{font-size:21px;margin-top:0}.settings-card>p{font-size:12px}.field-row{display:flex;gap:15px}.field-row>label{flex:1;min-width:0}.location-result{font-size:12px;padding:12px;background:#f5f2ec;border-radius:6px;line-height:1.8;margin:16px 0}.switch-label{display:flex;align-items:center;gap:10px;margin:0;font-size:14px}.switch-label input{margin:0}.save-bar{display:flex;align-items:center;justify-content:space-between;margin:25px 0 45px;gap:20px}.hint{font-size:12px;color:var(--muted);line-height:1.8}.code-card{padding:30px;display:grid;grid-template-columns:220px 1fr;gap:35px;align-items:center}.code-card img{width:210px;border:1px solid var(--line);padding:15px;background:white}.code-card h2{font-family:var(--serif);font-size:27px}.code-card p{font-size:13px;line-height:1.9;color:var(--muted)}.inline-actions{display:flex;gap:12px;flex-wrap:wrap}.notice{background:#f1e8dc;border:1px solid #e4d6c4;color:#83664a;border-radius:8px;padding:13px 16px;line-height:1.8;font-size:12px;margin-bottom:24px}.notice a{text-decoration:underline}dialog{border:1px solid var(--line);border-radius:12px;padding:28px;width:400px;max-width:calc(100vw - 32px);background:var(--cream)}dialog::backdrop{background:#20181766}dialog h2{font-family:var(--serif);margin:0 0 18px}.dialog-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:20px}.audit-list{padding:20px;background:white;border:1px solid var(--line);border-radius:10px}.audit-row{display:flex;gap:22px;padding:14px 0;border-bottom:1px solid var(--line);font-size:12px}.audit-row:last-child{border:0}.audit-row time{color:var(--muted);white-space:nowrap}
@media(min-width:900px){.student-shell{max-width:1080px}.course-heading h1 br{display:none}.course-heading h1 span{margin-left:13px}.course-heading{padding-top:45px}.student-grid{gap:72px}.side-column{padding-top:24px}}
@media(max-width:700px){.student-shell{padding:0 22px}.brand{height:83px}.brand-mark{height:36px;width:36px;font-size:28px}.brand-lockup{font-size:13px;gap:10px}.header-note{font-size:9px;letter-spacing:1px}.course-heading{padding:28px 0 21px}.course-heading h1{font-size:29px;line-height:1.5;margin:12px 0}.eyebrow{font-size:9px}.venue{font-size:12px;margin-bottom:0}.student-grid{grid-template-columns:1fr;gap:30px;padding-bottom:30px}.bind-card{padding:25px}.card h2{font-size:24px}.side-column{padding-top:0}.schedule-head h2{font-size:23px}.journey{display:flex;gap:12px}.journey-day{flex:1;display:block;padding-bottom:20px}.journey-day:before{display:none}.day-number{font-size:12px;width:30px;height:30px}.journey-day h3{font-size:12px;margin:13px 0 10px}.journey-day h3 small{display:block;margin:8px 0 0;font-size:10px}.day-sessions{display:flex;flex-direction:column;gap:7px}.day-sessions>span{font-size:10px;padding:7px 8px}.day-sessions b{margin-left:4px}.footer{font-size:9px;padding-bottom:28px}.identity{margin-top:4px}.clock-display{font-size:58px}.admin-shell{padding:0 18px}.admin-header{height:80px}.header-links{gap:9px;font-size:10px}.admin-title{align-items:flex-start;margin-top:26px}.admin-title h1{font-size:27px}.admin-title>.button{padding:8px 10px;font-size:11px}.stats{grid-template-columns:1fr 1fr;gap:10px}.stat{padding:15px 18px}.stat strong{font-size:30px}.admin-tabs{gap:23px;font-size:13px}.toolbar{flex-wrap:wrap}.toolbar input{max-width:none;width:100%}.toolbar>div{width:100%;justify-content:space-between}.settings-grid{grid-template-columns:minmax(0,1fr)}.settings-card{padding:20px}.field-row{gap:10px}.settings-card input{font-size:13px;padding:0 8px}.code-card{grid-template-columns:1fr;padding:25px;gap:12px}.code-card img{margin:auto}.save-bar{align-items:flex-start}.save-bar .hint{max-width:180px}.login-wrap{margin:60px auto}.audit-row{display:block;line-height:1.9}.audit-row time{display:block}.record-row{gap:9px}.card-top{font-size:11px}.record-row>span:last-child{min-width:43px}}

@media(max-width:450px){.settings-card .field-row{flex-direction:column;gap:0}.admin-title>.button{white-space:nowrap}.admin-title h1{font-size:25px}.admin-title>div{min-width:0}}