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.primary-btn,.ghost-btn,.danger-btn{min-height:39px;padding:0 14px}.ghost-btn,.danger-btn{border-radius:11px;background:rgba(255,255,255,.025);border:1px solid var(--line2);color:#b3c0d0}.danger-btn{color:#ff8694;border-color:rgba(255,101,119,.25);background:rgba(255,101,119,.06)}.attendance-workspace{display:grid;grid-template-columns:300px minmax(0,1fr);gap:16px}.lesson-rail{align-self:start;position:sticky;top:91px}.lesson-list{display:flex;flex-direction:column;gap:8px;max-height:calc(100vh - 220px);overflow:auto}.lesson-card{width:100%;text-align:left;padding:13px;border-radius:13px;border:1px solid var(--line);background:#0b1828;color:white;display:grid;grid-template-columns:auto 1fr auto;gap:4px 10px;align-items:center}.lesson-card>span{grid-row:1/3;color:#6f9ee8;font:600 10px "DM Mono",monospace}.lesson-card b{font-size:12px}.lesson-card small{font-size:9px;color:#687d96}.lesson-card .status-chip{grid-column:3;grid-row:1/3}.lesson-card:hover,.lesson-card.selected{border-color:rgba(79,140,255,.45);background:#10223a}.roster-panel{min-height:500px}.roster-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:16px}.roster-head h3{font-size:21px;margin-bottom:5px}.roster-head p{font-size:10px;color:#6d8199;margin:0}.roster-actions{display:flex;gap:8px}.roster-summary{display:flex;gap:20px;align-items:center;padding:11px 13px;background:#0a1726;border:1px solid var(--line);border-radius:11px;margin-bottom:12px;color:#71869d;font-size:10px}.roster-summary b{color:#d7e2ef}.roster-scroll{max-height:570px}.table-scroll{overflow:auto}.data-table,.schedule-table{width:100%;border-collapse:collapse;white-space:nowrap}.data-table th,.data-table td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left;font-size:10px}.data-table th{position:sticky;top:0;background:#0e1d2f;color:#667b94;font:600 8px "DM Mono",monospace;letter-spacing:.08em;z-index:1}.data-table td{color:#a5b5c8}.data-table td b{color:#eef4fa}.cell-sub{display:block;color:#637890;margin-top:4px}.mono{font-family:"DM Mono",monospace}.status-actions{display:flex;gap:5px}.mini-action{min-height:27px;border:1px solid var(--line);background:#0a1726;color:#7d91a8;border-radius:8px;padding:0 8px;font-size:9px}.mini-action:hover,.mini-action.active{border-color:currentColor}.mini-action.ok{color:var(--green)}.mini-action.warn{color:var(--orange)}.mini-action.bad{color:var(--red)}.mini-action.med{color:#70a7ff}.mini-action.leave{color:#b39aff}
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.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-stack{display:flex;flex-direction:column;gap:14px;margin-top:18px}.form-stack label,.form-grid label{display:flex;flex-direction:column;gap:7px;color:#8195ad;font-size:10px}.source-panel p{color:#73879f;font-size:10px;line-height:1.6;border-top:1px solid var(--line);padding-top:11px}.source-panel p b{color:#b7c6d6}.settings-save{display:flex;justify-content:flex-end;margin-top:16px}.modal-backdrop{position:fixed;inset:0;background:rgba(0,6,14,.72);backdrop-filter:blur(8px);z-index:100;display:grid;place-items:center;padding:20px}.modal{width:min(650px,100%);max-height:90vh;overflow:auto;border:1px solid var(--line2);border-radius:21px;background:#0d1b2d;box-shadow:var(--shadow)}.modal-head,.modal-foot{display:flex;align-items:center;justify-content:space-between;padding:18px 21px;border-bottom:1px solid var(--line)}.modal-head h3{margin:0}.modal-head button{width:32px;height:32px;border:1px solid var(--line);border-radius:9px;background:transparent;color:#899db5;font-size:20px}.modal-body{padding:21px}.modal-foot{border-top:1px solid var(--line);border-bottom:0;justify-content:flex-end;gap:8px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px}.form-grid .full{grid-column:1/-1}.form-grid .dark-input,.form-grid .dark-select{width:100%}
@media(max-width:1100px){.metric-grid{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}.attendance-workspace{grid-template-columns:1fr}.lesson-rail{position:static}.lesson-list{display:grid;grid-template-columns:repeat(2,1fr);max-height:none}.settings-grid{grid-template-columns:1fr}.date-chip{display:none}}
@media(max-width:760px){:root{--sidebar:76px}.sidebar{padding:19px 10px}.app-brand>div:last-child,.workspace-switch div,.workspace-switch .chevron,.nav-section-label,.nav-item span:not(.nav-icon),.nav-item kbd,.connection-card div,.connection-card .signal,.sidebar-meta{display:none}.app-brand{padding:0 10px 20px}.workspace-switch{justify-content:center;padding:12px}.nav-item{justify-content:center}.nav-icon{font-size:17px}.topbar{padding:0 14px}.breadcrumb span,.icon-btn{display:none}.user-text{display:none}.content{padding:25px 14px 45px}.hero-row{align-items:flex-start;flex-direction:column}.hero-actions{width:100%}.metric-grid{grid-template-columns:1fr 1fr}.metric-card{min-height:125px;padding:17px}.metric-card strong{font-size:31px}.lesson-list{grid-template-columns:1fr}.roster-head{align-items:flex-start;flex-direction:column}.roster-actions{width:100%;flex-wrap:wrap}.schedule-toolbar,.table-toolbar{align-items:flex-start;flex-direction:column}.filter-row{justify-content:flex-start;width:100%}.dark-input,.dark-select{flex:1;min-width:0}.directory-summary{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.showcase-metrics,.login-showcase{display:none}.login-screen{grid-template-columns:1fr}.login-panel{padding:20px}.panel-legal{position:static;margin-top:18px;text-align:center}.status-actions{min-width:310px}.roster-summary{overflow:auto}.top-actions{gap:5px}}

.search-select{display:flex;flex-direction:column;gap:6px;min-width:150px}.search-select .select-search{height:32px;min-width:0;font-size:10px}.search-select .dark-select{width:100%}.form-grid .search-select{width:100%}

/* 明亮校园主题覆盖：清爽蓝、薄荷绿与暖黄色，避免压抑的全黑界面 */
:root{--bg:#f3f7fb;--bg2:#eef5fb;--panel:#ffffff;--panel2:#f7fbff;--line:rgba(42,83,122,.14);--line2:rgba(42,83,122,.25);--text:#17324d;--muted:#6b8299;--blue:#2f80ed;--cyan:#14b8a6;--green:#18a873;--orange:#f59e0b;--red:#e85d6a;--violet:#8064d9;--shadow:0 18px 50px rgba(38,86,126,.12)}
body{background:linear-gradient(135deg,#f7fbff 0%,#eef8f5 48%,#fff8e8 100%);color:var(--text)}
.login-screen{background:linear-gradient(135deg,#eaf4ff,#f1fbf8 55%,#fff5dc)}.login-showcase{background:linear-gradient(145deg,rgba(255,255,255,.84),rgba(239,248,255,.82));border-right-color:rgba(42,83,122,.13)}.login-card,.panel,.metric-card,.mini-stat{background:rgba(255,255,255,.88);border-color:var(--line);box-shadow:var(--shadow)}.login-card h2,.hero-row h1,.panel h3{color:#17324d}.login-card label,.page-subtitle,.metric-top,.data-table td,.activity-row b{color:#47627d}.input-shell,.dark-input,.dark-select{background:#f8fbfe;border-color:var(--line2);color:#17324d}.input-shell input{color:#17324d}.sidebar{background:linear-gradient(180deg,#ffffff,#f1f8ff);border-right-color:var(--line);box-shadow:4px 0 20px rgba(53,92,126,.05)}.app-brand .brand-lockup strong,.brand-lockup strong{color:#17324d}.workspace-switch,.connection-card,.lesson-card,.roster-summary{background:#f4f9fd;border-color:var(--line)}.nav-item{color:#58728d}.nav-item:hover{background:#eaf4ff;color:#17324d}.nav-item.active{background:linear-gradient(90deg,#e3f0ff,#f2f9ff);color:#145db8;box-shadow:inset 3px 0 var(--blue)}.topbar{background:rgba(255,255,255,.84);border-bottom-color:var(--line)}.breadcrumb b,.user-text b{color:#23415f}.schedule-panel,.modal{background:#fff}.modal-backdrop{background:rgba(40,73,103,.34)}.data-table th,.schedule-table thead th,.schedule-table tbody th{background:#f2f7fc;color:#63809b}.course-cell{background:linear-gradient(145deg,#eaf4ff,#f2fbff);border-color:#cfe3f7}.login-submit,.primary-btn{background:linear-gradient(135deg,#2f80ed,#18b6a1);box-shadow:0 10px 25px rgba(47,128,237,.18)}.ghost-btn{background:#f5f9fc;color:#47627d}.danger-btn{background:#fff3f3}.showcase-copy h1 em{color:#2f80ed}.kicker,.section-overline{color:#2f80ed}.last-sync,.date-chip,.data-count{color:#63809b}.search-select .dark-select{background:#f8fbfe;color:#17324d}