*{box-sizing:border-box} [hidden]{display:none!important}
html{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;line-height:1.6;background:var(--background);color:var(--foreground)}
button,input,textarea{font:inherit} button,a,input,textarea{touch-action:manipulation} button{cursor:pointer} button:disabled{cursor:default;opacity:.58} a{color:var(--primary);text-decoration:none} a:hover{text-decoration:underline}
button:focus-visible,a:focus-visible{outline:2px solid var(--primary);outline-offset:4px} input:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--hover)}
.account-header{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px;max-width:1280px;margin:0 auto;padding:18px 40px}
.account-brand{display:inline-flex;align-items:center;gap:9px;color:var(--foreground);font-size:20px;font-weight:750;letter-spacing:-.65px;line-height:1.2;white-space:nowrap}
.account-brand:hover{text-decoration:none}.account-brand img{display:block}.brand-rest{font-weight:550;margin-left:2px}.account-header #theme-toggle{width:38px;height:38px}
.auth-shell{width:100%;min-height:calc(100vh - 154px);display:grid;place-items:center;padding:26px 24px 48px}
.auth-card{width:100%;max-width:430px;padding:34px 38px 30px;background:var(--card);border:1px solid var(--border);border-radius:24px;box-shadow:0 14px 54px #20212408}
.planet-mark{display:grid;place-items:center;width:74px;height:74px;margin:0 0 21px;background:var(--active);border-radius:24px;transform:rotate(-5deg)}.planet-mark img{transform:rotate(5deg)}
.eyebrow{margin:0 0 10px;color:var(--primary);font-size:10px;font-weight:650;letter-spacing:1.9px;line-height:1.5}
h1{margin:0;font-size:25px;line-height:1.4;font-weight:650;letter-spacing:-.6px}.auth-description{margin:10px 0 26px;color:var(--muted);font-size:13px;line-height:1.8}
.account-form{display:grid;gap:18px}.form-field{min-width:0}.form-field label{display:block;margin-bottom:7px;font-size:13px;font-weight:550}
.form-field input,.form-field textarea{display:block;width:100%;min-height:46px;padding:11px 13px;color:var(--foreground);background:var(--card);border:1px solid var(--border);border-radius:10px;transition:border-color .15s,box-shadow .15s}.form-field textarea{resize:vertical;min-height:90px;line-height:1.7}.form-field input[aria-invalid=true]{border-color:var(--warning)}
.form-field input::placeholder,.form-field textarea::placeholder{font-size:13px;color:var(--muted);opacity:.72}.password-wrap{position:relative}.password-wrap input{padding-right:62px}.password-toggle{position:absolute;right:8px;top:50%;transform:translateY(-50%);padding:5px 7px;border:0;border-radius:6px;background:transparent;color:var(--muted);font-size:11px}.password-toggle:hover{color:var(--primary);background:var(--hover)}
.field-hint,.field-error{font-size:11px;line-height:1.6;margin:6px 0 0}.field-hint{color:var(--muted)}.field-error{color:var(--warning)}
.button{display:inline-flex;justify-content:center;align-items:center;gap:6px;min-height:44px;padding:10px 19px;border:1px solid transparent;border-radius:10px;font-size:13px;font-weight:550;line-height:1.5;text-decoration:none!important;transition:background .15s,filter .15s}.button.primary{background:var(--primary);color:var(--primary-on);border-color:var(--primary)}.button.secondary{background:transparent;color:var(--foreground);border-color:var(--border)}.button.secondary:hover{background:var(--hover)}.button.danger{background:var(--orange-bg);color:var(--warning);border-color:var(--orange-bg)}.button.danger:hover{filter:brightness(.95)}.button.full-width{width:100%;margin-top:4px}.button.compact{min-height:36px;padding:7px 14px;font-size:12px}
.auth-switch{text-align:center;color:var(--muted);font-size:12px;margin:23px 0 0}.auth-switch a{margin-left:6px;font-weight:550}.notice{padding:12px 14px;margin:0 0 19px;border-radius:10px;font-size:12px;line-height:1.8;background:var(--active);color:var(--primary);overflow-wrap:anywhere}.error-notice{color:var(--warning);background:var(--orange-bg)}.success-notice{color:var(--success);background:var(--leaf-bg)}
.account-footer{text-align:center;color:var(--muted);font-size:11px;padding:19px 20px 28px;letter-spacing:.2px}.register-shell{padding-top:15px;padding-bottom:30px}.register-shell .auth-card{padding-top:27px;padding-bottom:27px}.register-shell .planet-mark{width:61px;height:61px;border-radius:19px;margin-bottom:17px}.register-shell .planet-mark img{width:39px;height:39px}.register-shell .account-form{gap:14px}.register-shell .auth-description{margin-bottom:22px}
.status-card{text-align:center;max-width:450px}.status-symbol{display:grid;place-items:center;width:78px;height:78px;margin:0 auto 24px;background:var(--active);color:var(--primary);border-radius:50%}.status-symbol svg{width:38px;height:38px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.status-symbol.rejected-symbol,.status-symbol.disabled-symbol{background:var(--orange-bg);color:var(--warning)}
.status-details{text-align:left;background:var(--panel);border:1px solid var(--border);border-radius:13px;padding:15px 17px;margin:23px 0}.status-details>div{display:grid;grid-template-columns:78px minmax(0,1fr);gap:8px;font-size:12px;line-height:1.7}.status-details>div+div{margin-top:10px}.status-details dt{color:var(--muted)}.status-details dd{margin:0;overflow-wrap:anywhere}.review-note{text-align:left;padding:14px 17px;background:var(--active);border-radius:12px;margin:18px 0 25px;overflow-wrap:anywhere}.review-note p{margin:0;font-size:12px;white-space:pre-wrap}.review-note p.note-label{color:var(--primary);font-size:11px;margin-bottom:5px;font-weight:600}.status-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.status-hint{margin:17px 0 0;color:var(--muted);font-size:11px}.status-password-link{margin-top:17px}
.admin-header{max-width:none;padding:17px 36px;border-bottom:1px solid var(--border);background:var(--card)}.admin-brand-group{display:flex;align-items:center;gap:16px}.admin-label{font-size:11px;color:var(--muted);border-left:1px solid var(--border);padding-left:16px;white-space:nowrap}.account-header-actions{display:flex;align-items:center;gap:18px;font-size:12px}.current-account{max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted)}.header-student-link{color:var(--muted)}.header-student-link span{font-size:14px}.header-logout,.header-password{padding:5px 0;border:0;color:var(--muted);background:transparent;font-size:12px}.header-logout:hover,.header-password:hover{color:var(--primary)}
.admin-shell{max-width:1260px;margin:0 auto;padding:42px 40px 30px;min-height:calc(100vh - 154px)}.admin-intro{display:flex;justify-content:space-between;align-items:center;gap:28px;margin-bottom:31px}.admin-intro .eyebrow{margin-bottom:8px}.admin-intro h1{font-size:27px}.admin-description{margin:9px 0 0;color:var(--muted);font-size:13px}.pending-summary{display:flex;align-items:center;gap:13px;padding:17px 24px;background:var(--card);border:1px solid var(--border);border-radius:16px;flex-shrink:0}.summary-dot{width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 5px var(--active)}.pending-summary>div{display:flex;align-items:baseline;gap:10px}.pending-summary strong{font-size:29px;font-weight:600;color:var(--primary);line-height:1.3}.pending-summary span{font-size:12px;color:var(--muted)}
.users-panel{border:1px solid var(--border);border-radius:19px;background:var(--card);overflow:hidden}.users-toolbar{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:21px 23px 16px}.status-tabs{display:flex;gap:5px;flex-wrap:wrap}.status-tabs button{min-height:36px;padding:8px 12px;border:0;border-radius:8px;background:transparent;color:var(--muted);font-size:12px;white-space:nowrap}.status-tabs button:hover{background:var(--hover);color:var(--foreground)}.status-tabs button[aria-pressed=true]{background:var(--active);color:var(--primary);font-weight:600}.status-tabs button>span{margin-left:3px;font-size:10px;opacity:.85}
.user-search{display:flex;align-items:center;gap:8px;width:235px;min-width:160px;padding:8px 11px;background:var(--panel);border:1px solid var(--border);border-radius:9px}.user-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px var(--hover)}.user-search svg{width:16px;height:16px;flex-shrink:0;fill:none;stroke:var(--muted);stroke-width:1.6;stroke-linecap:round}.user-search input{min-width:0;width:100%;border:0;padding:0;outline:none!important;box-shadow:none!important;background:transparent;font-size:12px;line-height:1.7;color:var(--foreground)}
.list-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 24px 17px;color:var(--muted);font-size:11px}.list-meta p{margin:0}.text-button{font-size:11px;padding:3px 0;color:var(--primary);border:0;background:transparent}.text-button:hover{text-decoration:underline}
.table-wrap{position:relative;min-height:230px}.users-table{width:100%;border-collapse:collapse;text-align:left;table-layout:fixed}.users-table th{padding:12px 18px;font-size:11px;font-weight:500;background:var(--panel);color:var(--muted);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.users-table th:first-child{padding-left:24px;width:24%}.users-table th:nth-child(2){width:14%}.users-table th:nth-child(3){width:17%}.users-table th:nth-child(4){width:25%}.users-table th:last-child{width:20%;padding-right:24px}.users-table td{padding:19px 18px;font-size:12px;vertical-align:middle;border-bottom:1px solid var(--border);overflow-wrap:anywhere}.users-table td:first-child{padding-left:24px}.users-table td:last-child{padding-right:24px}.users-table tbody tr:last-child td{border-bottom:0}.user-name{display:block;font-size:13px;font-weight:600;line-height:1.6}.user-username{display:block;font-size:11px;color:var(--muted);margin-top:3px;word-break:break-all}.role-badge{display:inline-flex;padding:1px 6px;margin-left:7px;font-size:9px;line-height:1.7;font-weight:500;border-radius:5px;color:var(--muted);background:var(--secondary);vertical-align:1px}.user-state{display:inline-flex;align-items:center;gap:6px;padding:4px 9px;border-radius:7px;font-size:10px;background:var(--secondary);color:var(--muted);white-space:nowrap}.user-state::before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}.user-state.pending{color:var(--primary);background:var(--active)}.user-state.approved{color:var(--success);background:var(--leaf-bg)}.user-state.rejected,.user-state.disabled{color:var(--warning);background:var(--orange-bg)}.user-date{display:block;font-variant-numeric:tabular-nums;font-size:11px;color:var(--muted);line-height:1.7}.user-note{font-size:11px;line-height:1.7;color:var(--foreground);white-space:pre-wrap;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-top:4px}.quiet-cell{color:var(--muted);font-size:11px}.row-actions{display:flex;gap:7px;flex-wrap:wrap}.row-action{padding:5px 10px;border:1px solid var(--border);border-radius:7px;background:transparent;color:var(--muted);font-size:11px;white-space:nowrap}.row-action:hover{background:var(--hover)}.row-action.approve,.row-action.restore{border-color:var(--active-border);color:var(--primary);background:var(--active)}.row-action.reject,.row-action.disable{color:var(--warning)}
.users-empty{text-align:center;padding:43px 20px 49px}.empty-orbit{display:grid;place-items:center;width:72px;height:72px;margin:0 auto 16px;border-radius:50%;background:var(--panel)}.users-empty h2{font-size:14px;font-weight:550;margin:0 0 7px}.users-empty p{font-size:12px;color:var(--muted);margin:0}.users-loading{text-align:center;padding:80px 20px;color:var(--muted);font-size:12px}.pagination{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 23px;border-top:1px solid var(--border)}.pagination p{margin:0;color:var(--muted);font-size:11px}.pagination>div{display:flex;gap:9px}
.review-dialog,.account-password-dialog{width:calc(100% - 40px);max-width:430px;padding:25px 27px;border:1px solid var(--border);border-radius:19px;background:var(--card);color:var(--foreground);box-shadow:0 20px 80px #0003}.review-dialog::backdrop,.account-password-dialog::backdrop{background:#10182860;backdrop-filter:blur(3px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:11px}.dialog-heading h2{font-size:18px;font-weight:600;line-height:1.5;margin:0}.dialog-close{display:grid;place-items:center;width:28px;height:28px;flex-shrink:0;font-size:23px;line-height:1;background:transparent;border:0;border-radius:50%;color:var(--muted)}.dialog-close:hover{background:var(--hover)}.dialog-description{font-size:12px;color:var(--muted);line-height:1.8;margin:0 0 17px}.dialog-user{display:flex;flex-direction:column;gap:3px;padding:13px 15px;background:var(--panel);border:1px solid var(--border);border-radius:10px;margin:0 0 19px;overflow-wrap:anywhere}.dialog-user strong{font-size:13px;font-weight:550}.dialog-user span{font-size:11px;color:var(--muted)}.label-optional{font-size:11px;color:var(--muted);font-weight:400;margin-left:4px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:23px}.review-dialog .notice{margin:15px 0 0}.account-password-dialog .account-form{gap:14px}.account-password-dialog .notice{margin:15px 0 0}.account-password-dialog .dialog-actions{margin-top:20px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.noscript-notice{text-align:center;font-size:13px;padding:20px;color:var(--warning)}
@media(min-width:1500px){.auth-shell{padding-bottom:70px}}
@media(max-width:980px){.admin-header{padding:16px 24px}.admin-shell{padding:31px 24px}.users-toolbar{align-items:flex-start;flex-direction:column;gap:16px}.user-search{width:100%;max-width:360px}.users-table th:first-child{width:23%}.users-table th:nth-child(3){width:16%}.users-table th:nth-child(4){width:22%}.users-table th:last-child{width:25%}.users-table th,.users-table td{padding-right:13px;padding-left:13px}.account-header-actions{gap:13px}.current-account{max-width:110px}}
@media(max-width:680px){.account-header{padding:17px 22px;min-height:69px}.account-brand{font-size:18px;letter-spacing:-.5px}.account-brand img{width:25px;height:25px}.auth-shell{padding:17px 20px 35px;min-height:calc(100dvh - 146px)}.auth-card{padding:28px 25px 27px;border-radius:21px}.planet-mark{width:66px;height:66px;border-radius:21px;margin-bottom:20px}h1{font-size:23px}.auth-description{font-size:12px}.register-shell{padding-top:9px}.register-shell .auth-card{padding-top:25px}.account-footer{font-size:10px;padding-bottom:25px}.admin-header{padding:16px 20px;flex-wrap:wrap;gap:15px}.admin-brand-group{gap:11px}.admin-label{padding-left:11px;font-size:10px}.account-header-actions{gap:13px;margin-left:auto}.current-account{display:none}.header-student-link{font-size:11px}.header-password,.header-logout{font-size:11px}.admin-header #theme-toggle{width:30px;height:30px}.admin-shell{padding:27px 17px 22px}.admin-intro{display:block;margin-bottom:24px}.admin-intro h1{font-size:23px}.admin-description{font-size:12px}.pending-summary{margin-top:22px;justify-content:flex-start;padding:13px 18px;width:fit-content}.pending-summary strong{font-size:26px}.pending-summary span{font-size:11px}.users-panel{border-radius:15px}.users-toolbar{padding:16px 15px 13px;gap:14px}.status-tabs{gap:2px;width:100%}.status-tabs button{padding:7px 8px;font-size:11px;min-height:33px}.status-tabs button>span{font-size:9px;margin-left:2px}.user-search{max-width:none}.list-meta{padding:0 16px 15px;font-size:10px}.users-table,.users-table tbody{display:block}.users-table thead{display:none}.users-table tr{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:11px 10px;padding:18px 16px;border-top:1px solid var(--border)}.users-table td,.users-table td:first-child,.users-table td:last-child{display:block;border:0;padding:0;width:auto}.users-table td:first-child{grid-column:1;grid-row:1}.users-table td:nth-child(2){grid-column:2;grid-row:1;justify-self:end}.users-table td:nth-child(3){grid-column:1;grid-row:2}.users-table td:nth-child(3)::before{content:"注册 ";color:var(--muted);font-size:10px}.users-table td:nth-child(3) .user-date{display:inline}.users-table td:nth-child(4){grid-column:1 / -1;grid-row:3;font-size:11px}.users-table td:nth-child(4).quiet-cell{display:none}.users-table td:nth-child(5){grid-column:2;grid-row:2 / span 2;align-self:end;justify-self:end}.users-table td:nth-child(4):has(.user-note){padding-right:88px}.users-table .user-name{font-size:12px}.user-state{font-size:9px;padding:3px 7px}.row-actions{max-width:145px;justify-content:flex-end}.row-action{font-size:10px;padding:5px 9px}.users-table .user-date{font-size:10px}.pagination{padding:15px}.pagination p{font-size:10px}.button.compact{font-size:11px;padding:6px 10px;min-height:33px}.review-dialog,.account-password-dialog{padding:23px 22px;width:calc(100% - 32px)}.dialog-heading h2{font-size:17px}.status-card .status-details{padding:14px}.status-details>div{grid-template-columns:68px minmax(0,1fr);font-size:11px}.status-actions .button{padding-left:15px;padding-right:15px;font-size:12px}}
@media(max-width:370px){.account-header{padding:16px 18px}.auth-shell{padding-left:15px;padding-right:15px}.auth-card{padding-left:22px;padding-right:22px}.admin-header{gap:11px}.admin-brand-group{gap:8px}.admin-label{padding-left:8px}.admin-header .account-brand{font-size:16px}.account-header-actions{gap:11px}.admin-shell{padding-right:13px;padding-left:13px}.status-tabs button{padding:7px 6px}.status-tabs button>span{margin-left:1px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media(max-width:680px){.users-table td:nth-child(5){grid-column:1 / -1;grid-row:4;align-self:start;justify-self:end}.users-table td:nth-child(4):has(.user-note){padding-right:0}.users-table tr:has(td:nth-child(4).quiet-cell) td:nth-child(5){grid-row:3}}