/*
  辅班小管家 Web 工作台
  设计原则：高校学生工作日常使用，信息清楚、操作直接、避免装饰化与营销化表达。
*/
:root{
  --wb-navy:#193a63;
  --wb-blue:#2d67a3;
  --wb-blue-weak:#eef5fb;
  --wb-green:#2f7d61;
  --wb-amber:#a66b16;
  --wb-red:#b34850;
  --wb-text:#253449;
  --wb-sub:#6c7b90;
  --wb-line:#dce5ee;
  --wb-bg:#f5f7fa;
  --wb-panel:#fff;
  --wb-shadow:0 2px 10px rgba(36,52,73,.07);
  --wb-radius:8px;
  --wb-sidebar:236px;
  --wb-header:62px;
}
*{box-sizing:border-box}
html{background:var(--wb-bg)}
body.app-body{
  min-height:100vh;
  margin:0;
  background:var(--wb-bg)!important;
  color:var(--wb-text);
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif;
  font-size:14px;
  line-height:1.55;
}
body.app-body::before{display:none!important}
a{color:var(--wb-blue)}
a:hover{color:#1e568e}
.app-shell{min-height:100vh}
.app-sidebar{
  position:fixed;inset:0 auto 0 0;z-index:1040;
  width:var(--wb-sidebar);display:flex;flex-direction:column;
  background:#fff;border-right:1px solid var(--wb-line);
}
.app-brand{
  display:flex;align-items:center;gap:10px;
  height:var(--wb-header);padding:0 18px;
  text-decoration:none;color:var(--wb-navy);border-bottom:1px solid var(--wb-line);
}
.app-brand:hover{color:var(--wb-navy)}
.app-brand-mark{width:30px;height:30px;display:grid;place-items:center;background:var(--wb-navy);color:#fff;border-radius:6px;font-size:15px}
.app-brand-text strong{display:block;font-size:15px;letter-spacing:.02em}
.app-brand-text small{display:block;margin-top:1px;color:var(--wb-sub);font-size:11px}
.app-nav{flex:1;padding:14px 10px;overflow-y:auto}
.app-nav-group{margin-bottom:16px}
.app-nav-caption{display:block;margin:0 10px 6px;color:#8a98aa;font-size:11px;font-weight:700;letter-spacing:.08em}
.app-nav-link{display:flex;align-items:center;gap:10px;padding:9px 10px;margin:2px 0;color:#4d5d70;text-decoration:none;border-radius:6px;font-weight:600;line-height:1.25}
.app-nav-link i{width:18px;text-align:center;color:#718298;font-size:15px}
.app-nav-link:hover{background:#f4f7fb;color:var(--wb-navy)}
.app-nav-link:hover i{color:var(--wb-blue)}
.app-nav-link.active{background:var(--wb-blue-weak);color:var(--wb-blue);font-weight:700}
.app-nav-link.active i{color:var(--wb-blue)}
.app-nav-link.is-risk{color:#8b5e18}
.app-nav-link.is-risk i{color:#a66b16}
.app-nav-bottom{padding:12px;border-top:1px solid var(--wb-line)}
.app-user-mini{display:flex;gap:9px;align-items:center;padding:9px 8px}
.app-user-avatar{width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:#edf2f7;color:var(--wb-navy)}
.app-user-meta{min-width:0;flex:1}
.app-user-meta strong,.app-user-meta span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.app-user-meta strong{font-size:13px;color:var(--wb-text)}
.app-user-meta span{font-size:11px;color:var(--wb-sub)}
.app-logout{padding:4px 6px;color:#78879a;background:none;border:0;font-size:16px}
.app-logout:hover{color:var(--wb-red)}
.app-main{min-height:100vh;margin-left:var(--wb-sidebar)}
.app-topbar{height:var(--wb-header);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 28px;background:#fff;border-bottom:1px solid var(--wb-line)}
.app-topbar-title{font-size:13px;color:var(--wb-sub)}
.app-topbar-title strong{color:var(--wb-text);font-weight:700}
.app-topbar-actions{display:flex;align-items:center;gap:8px}
.app-icon-button{position:relative;display:grid;place-items:center;width:34px;height:34px;color:#64748b;border:1px solid transparent;border-radius:6px;background:transparent;cursor:pointer}
.app-icon-button:hover{color:var(--wb-blue);background:#f4f7fb;border-color:#e7edf4}
.app-icon-button .badge{position:absolute;top:2px;right:1px;font-size:9px}
.app-asset-button{display:inline-flex;align-items:center;gap:5px;padding:6px 8px;color:#55677c;background:#f7f9fb;border:1px solid #e1e8ef;border-radius:6px;text-decoration:none;font-size:12px;font-weight:700}
.app-asset-button:hover{color:var(--wb-blue);background:#fff}
.app-mobile-menu{display:none}
.app-content{padding:24px 28px 42px}
.app-content-inner{max-width:1600px;margin:0 auto}

/* Shared workbench components */
.role-page,.workspace-page{max-width:100%}
.page-titlebar,.workspace-titlebar{
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  margin:0 0 18px;padding:0 0 15px;border-bottom:1px solid var(--wb-line)
}
.page-titlebar h1,.page-titlebar h2,.workspace-titlebar h1,.workspace-titlebar h2{margin:0;color:var(--wb-text);font-size:22px;font-weight:700;line-height:1.35}
.page-titlebar p,.workspace-titlebar p{margin:5px 0 0;color:var(--wb-sub);font-size:13px}
.page-kicker{display:flex;align-items:center;gap:6px;margin-bottom:4px;color:var(--wb-blue);font-size:12px;font-weight:700}
.page-actions{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.workbench-panel,.campus-panel,.saas-card,.module-card,.workspace-card{
  background:var(--wb-panel)!important;border:1px solid var(--wb-line)!important;
  border-radius:var(--wb-radius)!important;box-shadow:var(--wb-shadow)!important;
}
/*
  卡片不能无条件覆写 Bootstrap 的 .bg-* 背景。
  之前 .card { background:#fff!important } 覆盖了 bg-primary / bg-success 等状态色，
  使白色数字和白色文字落在白底上，形成“内容消失”。
*/
.card{
  border:1px solid var(--wb-line)!important;
  border-radius:var(--wb-radius)!important;
  box-shadow:var(--wb-shadow)!important;
}
.card:not([class*="bg-"]):not([style*="background"]){background:var(--wb-panel)!important;}
.workbench-panel,.campus-panel{overflow:hidden}
.workbench-panel-header,.campus-panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid #e7edf3;background:#fff}
.workbench-panel-body,.campus-panel-body{padding:16px}
.workbench-panel-title,.campus-panel-title{margin:0;font-size:15px;color:var(--wb-text);font-weight:700}
.workbench-panel-note,.campus-panel-subtitle{margin:4px 0 0;color:var(--wb-sub);font-size:12px}
.workbench-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.workbench-stat{padding:14px 15px;background:#fff;border:1px solid var(--wb-line);border-radius:var(--wb-radius)}
.workbench-stat-label{display:flex;align-items:center;justify-content:space-between;color:var(--wb-sub);font-size:12px;font-weight:600}
.workbench-stat-label i{color:var(--wb-blue);font-size:16px}
.workbench-stat-value{margin-top:7px;color:var(--wb-text);font-size:25px;font-weight:700;line-height:1}
.workbench-stat-unit{margin-left:2px;color:var(--wb-sub);font-size:12px;font-weight:400}
.workbench-stat-note{margin-top:6px;color:#8795a6;font-size:12px}
.workbench-list{display:grid;gap:9px}
.workbench-list-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 12px;border:1px solid #e7edf3;border-radius:6px;background:#fff}
.workbench-list-item:hover{background:#f8fbfd}
.module-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.module-card{display:flex;align-items:flex-start;gap:12px;padding:16px;text-decoration:none;color:var(--wb-text);transition:border-color .15s,box-shadow .15s}
.module-card:hover{color:var(--wb-text);border-color:#b9cbe0!important;box-shadow:0 4px 14px rgba(36,52,73,.1)!important;transform:none!important}
.module-icon{display:grid;place-items:center;flex:0 0 34px;width:34px;height:34px;color:var(--wb-blue);background:var(--wb-blue-weak);border-radius:6px;font-size:16px}
.module-icon.is-green{color:var(--wb-green);background:#eef8f4}.module-icon.is-amber{color:var(--wb-amber);background:#fff7ea}.module-icon.is-red{color:var(--wb-red);background:#fff2f3}
.module-copy{min-width:0;flex:1}.module-copy strong{display:block;color:var(--wb-text);font-size:14px;font-weight:700}.module-copy span{display:block;margin-top:3px;color:var(--wb-sub);font-size:12px;line-height:1.45}.module-arrow{color:#9aabbd;font-size:18px;align-self:center}

/* Basic Bootstrap normalisation */
main .container,main .container-lg,main .container-xl,main .container-xxl{max-width:none;padding-left:0;padding-right:0}
.card-header{background:#fff;border-bottom-color:#e7edf3}.card-body{padding:16px}
.btn{border-radius:6px!important;font-size:13px;font-weight:600;box-shadow:none!important}
.btn-primary{background:#2d67a3;border-color:#2d67a3}.btn-primary:hover,.btn-primary:focus{background:#25598d;border-color:#25598d}
.btn-outline-primary{color:#2d67a3;border-color:#9bb9d7}.btn-outline-primary:hover{background:#2d67a3;border-color:#2d67a3}
.btn-dark{background:#193a63;border-color:#193a63}.btn-dark:hover{background:#142f50;border-color:#142f50}
.btn-success{background:#2f7d61;border-color:#2f7d61}.btn-success:hover{background:#286b53;border-color:#286b53}
.form-control,.form-select{min-height:38px;border-color:#cfdbe6;border-radius:6px!important;font-size:13px;box-shadow:none!important}
.form-control:focus,.form-select:focus{border-color:#7aa3ca;box-shadow:0 0 0 .18rem rgba(45,103,163,.12)!important}
.form-label{color:#526276;font-size:12px;font-weight:700}
.table{margin-bottom:0;color:#344255;font-size:13px}.table>:not(caption)>*>*{border-bottom-color:#e7edf3;padding:10px 12px}.table thead th{color:#65768a;background:#f7f9fb;font-size:11px;font-weight:700;letter-spacing:.03em;text-transform:none;white-space:nowrap}.table-hover>tbody>tr:hover>*{background:#f8fbfd}
.table-responsive{border:1px solid var(--wb-line);border-radius:6px;background:#fff}
.badge{font-weight:600;border-radius:4px!important}
.alert{border-radius:6px!important;font-size:13px}
.modal-content,.offcanvas{border:1px solid var(--wb-line)!important;border-radius:8px!important;box-shadow:0 12px 36px rgba(28,45,68,.16)!important}
.modal-header,.modal-footer{border-color:#e7edf3}
.pagination .page-link{border-radius:5px!important;color:var(--wb-blue);border-color:#d7e1eb}.pagination .page-item.active .page-link{background:var(--wb-blue);border-color:var(--wb-blue)}
.text-slate-900{color:var(--wb-text)!important}.text-slate-600{color:#536479!important}.text-slate-500,.text-muted{color:var(--wb-sub)!important}.text-blue-600{color:var(--wb-blue)!important}
.bg-slate-50,.bg-light{background:#f7f9fb!important}.bg-blue-50{background:#eef5fb!important}.border-slate-200{border-color:var(--wb-line)!important}

/* Neutralise decorative legacy UI without changing business markup */
.app-body .bg-orb-container,.app-body .web-bg-mesh,.app-body .sweep-light-effect::before,.app-body .glass-highlight-bar{display:none!important}
.app-body [class*="glass-"],.app-body .glass-premium-card,.app-body .saas-card{backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
.app-body .hover-spring:hover,.app-body .saas-card-hover:hover,.app-body .shadow-hover:hover{transform:none!important}
.app-body .fade-in-up,.app-body .fade-in-down,.app-body .float-anim,.app-body .pulse-button{animation:none!important;opacity:1!important;transform:none!important}
/* 页面中的业务色块、公告头部等可以使用自身指定的背景；不再全局清除渐变。 */
.app-body .rounded-pill{border-radius:6px!important}
.app-body .rounded-4,.app-body .rounded-5{border-radius:8px!important}
.app-body .display-1,.app-body .display-2,.app-body .display-3,.app-body .display-4{font-size:1.6rem!important}
.app-body img[src*="icons8.com"]{display:none!important}
.app-body .icon-box{width:34px!important;height:34px!important;display:grid!important;place-items:center!important;border-radius:6px!important;flex:0 0 34px!important}
.app-body .icon-box::before{font-family:"bootstrap-icons"!important;content:"\f4f4";font-size:16px}
.app-body .module-info{min-width:0;flex:1}.app-body .module-title{color:var(--wb-text);font-size:14px;font-weight:700}.app-body .module-desc{margin:3px 0 0;color:var(--wb-sub);font-size:12px;line-height:1.45}.app-body .module-arrow{color:#9aabbd}
.role-page-admin .admin-command-header,.role-page-admin .admin-sidebar{display:none!important}
.role-page-admin .admin-layout{display:block!important;margin:0!important}
.role-page-admin .admin-content{min-width:0!important}
.role-page-admin .admin-command-header + .admin-layout{margin-top:0!important}

/* Legacy page headers become calm, task-oriented headers */
.role-page .page-heading,.role-page > .row.mt-4.mb-4.align-items-center,.role-page > .row:first-child{margin-top:0!important}
.role-page .page-heading h3{font-size:21px!important;color:var(--wb-text)!important}
.role-page .page-heading p{font-size:13px!important}
.campus-note{border-radius:6px!important}
.workspace-hero,.admin-command-header{background:#fff!important;color:var(--wb-text)!important;border:1px solid var(--wb-line)!important;border-radius:8px!important;box-shadow:var(--wb-shadow)!important}
.workspace-hero h2,.admin-command-header h1{color:var(--wb-text)!important}.workspace-hero p,.admin-command-header p{color:var(--wb-sub)!important}
.admin-account-card{background:#f7f9fb!important;border-color:var(--wb-line)!important;color:var(--wb-text)!important}.admin-account-card span{color:var(--wb-sub)!important}

/* Role-specific desktop width and dense work pages */
.role-page-teacher .saas-card,.role-page-student .saas-card,.role-page-department .saas-card{box-shadow:var(--wb-shadow)!important}
.role-page-teacher .card,.role-page-student .card,.role-page-department .card{box-shadow:var(--wb-shadow)!important}
.role-page-teacher .row.g-3,.role-page-teacher .row.g-4,.role-page-student .row.g-4{row-gap:12px!important}
.role-page-teacher .row.mb-5{margin-bottom:24px!important}
.role-page-student .card,.role-page-teacher .card{text-align:left!important}

/* Public and auth */
.public-shell{max-width:1050px;margin:0 auto;padding:38px 18px 54px}
.public-hero{padding:28px;border:1px solid var(--wb-line);background:#fff;border-radius:8px;box-shadow:var(--wb-shadow)}
.public-hero h1{margin:0;color:var(--wb-navy);font-size:28px;font-weight:700}.public-hero p{max-width:660px;margin:8px 0 0;color:var(--wb-sub)}
.public-entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:16px}
.public-entry{padding:20px;background:#fff;border:1px solid var(--wb-line);border-radius:8px;box-shadow:var(--wb-shadow)}
.public-entry .entry-icon{display:grid;place-items:center;width:34px;height:34px;margin-bottom:12px;background:var(--wb-blue-weak);border-radius:6px;color:var(--wb-blue)}
.public-entry h2{margin:0;color:var(--wb-text);font-size:17px;font-weight:700}.public-entry p{margin:6px 0 16px;color:var(--wb-sub);font-size:13px;line-height:1.65}
.auth-layout{min-height:calc(100vh - 100px);display:grid;place-items:center;padding:28px 16px}.auth-card{width:min(440px,100%);padding:26px;background:#fff;border:1px solid var(--wb-line);border-radius:8px;box-shadow:0 8px 28px rgba(36,52,73,.09)}.auth-card h1{margin:0;color:var(--wb-text);font-size:22px;font-weight:700}.auth-card .auth-caption{margin:7px 0 22px;color:var(--wb-sub);font-size:13px}

/* Responsive */
@media(max-width:1199.98px){.module-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.workbench-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:991.98px){
  :root{--wb-sidebar:0px}
  .app-sidebar{display:none}
  .app-main{margin-left:0}
  .app-mobile-menu{display:grid;place-items:center;width:32px;height:32px;border:0;background:transparent;color:#526276;font-size:20px}
  .app-topbar{padding:0 16px}.app-topbar-title{display:none}.app-topbar-actions{margin-left:auto}
  .app-content{padding:18px 16px 34px}
  .app-mobile-drawer{width:276px!important}
  .page-titlebar,.workspace-titlebar{align-items:flex-start;flex-direction:column}
  .page-actions{width:100%}
  .role-page-admin .admin-layout{display:block!important}
}
@media(max-width:575.98px){
  .app-topbar{height:56px}.app-brand{height:56px}.app-content{padding:15px 12px 30px}
  .app-asset-button{display:none}.app-user-meta{max-width:126px}
  .workbench-grid,.module-grid,.public-entry-grid{grid-template-columns:1fr}
  .page-titlebar h1,.page-titlebar h2,.workspace-titlebar h1,.workspace-titlebar h2{font-size:19px}
  .workbench-stat-value{font-size:22px}.table{font-size:12px}.table>:not(caption)>*>*{padding:9px 8px}
}

/*
  v57 可读性与层级修复
  - Bootstrap 的背景工具类由 Bootstrap 自己负责，不被工作台通用卡片规则覆盖。
  - 弹窗始终高于侧栏、下拉菜单和页面内固定组件。
*/
.app-body .modal-backdrop{z-index:1080!important;}
.app-body .modal{z-index:1085!important;}
.app-body .modal-dialog{pointer-events:auto;}
.app-body .dropdown-menu{z-index:1060;}
.app-body .offcanvas{z-index:1070!important;}

/* 业务页中的输入内容保持深色，避免遗留页面的浅色字体继承到白色输入框。 */
.role-page .form-control,
.role-page .form-select,
.role-page textarea{color:var(--wb-text)!important;background-color:#fff!important;}
.role-page .form-control::placeholder,
.role-page textarea::placeholder{color:#8a98aa!important;opacity:1;}
.role-page .modal-content{color:var(--wb-text);background:#fff!important;}