:root{--bg-page: #f3f5f7;--bg-panel: #ffffff;--bg-muted: #f7f8fb;--line-color: #dde2ea;--text-main: #1f2937;--text-sub: #667085;--brand: #0f7ed6;--brand-strong: #0665b0;--danger: #d92d20;--radius-md: 12px;--radius-sm: 8px}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;padding:0}body{font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--text-main);background:var(--bg-page)}button,input,textarea{font:inherit}.login-page{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:420px;padding:28px;border-radius:var(--radius-md);background:var(--bg-panel);border:1px solid var(--line-color);box-shadow:0 10px 40px #0b213514}.login-card__title{margin:0;font-size:24px}.login-card__subtitle{margin:8px 0 24px;color:var(--text-sub)}.login-card__label{display:block;margin-bottom:14px;font-size:14px;color:var(--text-sub)}.login-card__input{width:100%;margin-top:6px;border:1px solid var(--line-color);border-radius:var(--radius-sm);padding:10px 12px;background:#fff}.login-card__error{margin:0 0 12px;color:var(--danger);font-size:13px}.login-card__submit{width:100%;border:0;border-radius:var(--radius-sm);background:var(--brand);color:#fff;padding:11px 14px;cursor:pointer}.login-card__submit:disabled{opacity:.6;cursor:not-allowed}.topbar{height:60px;border-bottom:1px solid var(--line-color);background:var(--bg-panel);display:flex;align-items:center;justify-content:space-between;padding:0 16px}.topbar__title{font-size:18px;font-weight:600}.topbar__right{display:flex;align-items:center;gap:12px}.topbar__profile{color:var(--text-sub);font-size:14px}.topbar__btn{border:1px solid var(--line-color);border-radius:var(--radius-sm);background:#fff;color:var(--text-main);padding:7px 11px;cursor:pointer}.maintenance-page{width:100%;height:100%;display:flex;flex-direction:column;background:var(--bg-page)}.maintenance-shell{flex:1;min-height:0;display:grid;grid-template-columns:248px minmax(0,1fr)}.maintenance-sidebar{border-right:1px solid var(--line-color);background:#fff;padding:16px;display:flex;flex-direction:column;gap:10px}.maintenance-menu-btn{border:1px solid var(--line-color);border-radius:var(--radius-sm);background:#fff;color:var(--text-main);padding:12px;text-align:left;cursor:pointer}.maintenance-menu-btn.active{border-color:var(--brand);background:#0f7ed612}.maintenance-menu-btn__title,.maintenance-menu-btn__hint{display:block}.maintenance-menu-btn__title{font-weight:700}.maintenance-menu-btn__hint{margin-top:4px;color:var(--text-sub);font-size:12px}.maintenance-main{min-width:0;min-height:0;overflow-y:auto;padding:18px}.maintenance-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:14px}.maintenance-header h1{margin:0;font-size:22px}.maintenance-header p{margin:6px 0 0;color:var(--text-sub)}.maintenance-content{display:grid;gap:14px}.maintenance-form,.maintenance-table,.maintenance-test-row,.maintenance-search,.maintenance-test-result,.maintenance-error,.maintenance-success{border:1px solid var(--line-color);border-radius:var(--radius-md);background:#fff}.maintenance-form{padding:16px;display:grid;gap:12px}.maintenance-form label{display:grid;gap:6px;color:var(--text-sub);font-size:13px}.maintenance-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.maintenance-form input,.maintenance-form textarea,.maintenance-test-row input,.maintenance-search input,.maintenance-phone-cell input{width:100%;border:1px solid var(--line-color);border-radius:var(--radius-sm);padding:10px 11px;color:var(--text-main);background:#fff}.maintenance-form textarea{resize:vertical}.maintenance-checkbox{display:inline-flex!important;grid-template-columns:auto 1fr;align-items:center;gap:8px!important;color:var(--text-main)!important}.maintenance-checkbox input{width:auto}.maintenance-actions,.maintenance-row-actions,.maintenance-test-row,.maintenance-search{display:flex;align-items:center;gap:10px}.maintenance-actions{justify-content:flex-start}.maintenance-test-row,.maintenance-search{padding:12px}.maintenance-source-tabs{display:flex;flex-wrap:wrap;gap:8px;border:1px solid var(--line-color);border-radius:var(--radius-md);background:#fff;padding:10px 12px}.maintenance-source-tabs button{border:1px solid var(--line-color);border-radius:var(--radius-sm);background:#fff;color:var(--text-main);padding:8px 12px;cursor:pointer}.maintenance-source-tabs button.active{border-color:var(--brand);background:#0f7ed614;color:var(--brand);font-weight:700}.maintenance-primary-btn,.maintenance-secondary-btn,.maintenance-row-actions button,.maintenance-phone-cell button{border-radius:var(--radius-sm);padding:9px 12px;cursor:pointer}.maintenance-primary-btn{border:1px solid var(--brand);background:var(--brand);color:#fff}.maintenance-secondary-btn,.maintenance-row-actions button,.maintenance-phone-cell button{border:1px solid var(--line-color);background:#fff;color:var(--text-main)}.maintenance-primary-btn:disabled,.maintenance-secondary-btn:disabled,.maintenance-phone-cell button:disabled{opacity:.6;cursor:not-allowed}.maintenance-error,.maintenance-success,.maintenance-test-result{padding:10px 12px;margin:0 0 12px;font-size:14px}.maintenance-error{color:var(--danger)}.maintenance-success{color:#087443}.maintenance-test-result{margin:0;color:var(--text-main)}.maintenance-table{overflow-x:auto}.maintenance-table-row{display:grid;grid-template-columns:1.1fr 1.3fr 1.8fr 140px;gap:12px;align-items:center;padding:12px 14px;border-top:1px solid var(--line-color);font-size:14px}.maintenance-table-row--students{grid-template-columns:.75fr 1.05fr 1fr .85fr 1.55fr 1.8fr 1fr;min-width:1240px}.maintenance-table-row:first-child{border-top:0}.maintenance-table-row span{min-width:0;overflow-wrap:anywhere}.maintenance-table-head{background:var(--bg-muted);color:var(--text-sub);font-weight:700}.maintenance-row-actions{justify-content:flex-end}.maintenance-phone-cell{display:grid;grid-template-columns:minmax(120px,1fr) auto;gap:8px;align-items:center}.maintenance-empty{margin:0;padding:24px 14px;color:var(--text-sub);text-align:center;border-top:1px solid var(--line-color)}@media (max-width: 900px){.topbar{padding:0 12px}.topbar__title{font-size:16px}.topbar__profile{display:none}.topbar__right{gap:8px}.topbar__btn{padding:6px 10px;font-size:13px}.maintenance-shell{grid-template-columns:1fr}.maintenance-sidebar{border-right:0;border-bottom:1px solid var(--line-color);flex-direction:row;overflow-x:auto}.maintenance-menu-btn{min-width:136px}.maintenance-main{padding:14px}.maintenance-header{flex-direction:column}.maintenance-form-grid{grid-template-columns:1fr}}