:root{--ink:#172a3e;--muted:#6d7c89;--teal:#087f80;--teal2:#dff3ee;--gold:#edb94a;--bg:#f4f7f8;--line:#dce5e7;--white:#fff;--danger:#bd514e}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:16px}button,input,textarea,select{font:inherit}button{cursor:pointer;border:0}.login{min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr;gap:6vw;align-items:center;padding:8vw 11vw;background:linear-gradient(120deg,#f3faf9 0 56%,#17344d 56%)}.brand{display:flex;align-items:center;gap:13px}.brand strong{font-size:22px;letter-spacing:.03em}.brand small{display:block;color:var(--muted);margin-top:5px;font-size:13px}.mark{width:44px;height:44px;border-radius:14px 14px 14px 4px;background:var(--teal);color:#fff;display:grid;place-items:center;font-weight:800;font-size:25px}.login>.brand{position:absolute;top:42px;left:11vw}.login>.brand small{color:#668078}.login-card{background:white;border-radius:24px;padding:38px;box-shadow:0 20px 70px #102b3d3d;max-width:450px}.eyebrow{font-size:12px;letter-spacing:.17em;color:var(--teal);font-weight:700}.login h1{font-size:39px;line-height:1.25;margin:14px 0}.login h1 em{color:var(--teal);font-style:normal}.muted{color:var(--muted);line-height:1.65}.login label,.field label{display:block;font-size:14px;font-weight:700;margin:18px 0 6px}.login input,.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:11px;padding:11px 13px;margin-top:7px;background:#fbfdfd;color:var(--ink);outline:none}.login input:focus,.field input:focus,.field textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px #087f8018}.primary{width:100%;margin-top:20px;background:var(--teal);color:#fff;border-radius:12px;padding:13px;font-weight:700}.primary:hover{background:#066869}.error{color:var(--danger);min-height:22px}.tip{color:#849198;font-size:12px;line-height:1.5}.topbar{height:76px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 34px}.compact .mark{width:34px;height:34px;font-size:19px;border-radius:11px 11px 11px 3px}.compact strong{font-size:18px}.top-actions{display:flex;gap:16px;align-items:center;color:var(--muted);font-size:14px}.pill{padding:7px 11px;background:var(--teal2);color:#17665f;border-radius:99px;font-size:12px}.ghost{color:var(--teal);background:none}.shell{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 76px)}.sidebar{background:#18364d;color:#eef7f5;padding:28px 17px;display:flex;flex-direction:column;gap:8px}.nav{background:none;color:#afc2c8;text-align:left;padding:13px 14px;border-radius:10px;font-weight:700}.nav span{display:block;font-size:11px;font-weight:400;opacity:.65;margin-top:4px}.nav.active,.nav:hover{background:#28556b;color:#fff}.side-note{margin:30px 14px 0;padding-top:20px;border-top:1px solid #ffffff2b;color:#91aab0;font-size:12px;line-height:1.8}.content{padding:38px clamp(24px,4vw,64px);max-width:1450px;width:100%;margin:auto}.page h2{font-size:29px;margin:0 0 8px}.page-intro{color:var(--muted);margin:0 0 28px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:16px}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 4px 16px #142e3d0a}.card h3{margin:0 0 9px;font-size:19px}.card p{line-height:1.6;color:var(--muted);margin:8px 0}.class-card{border-left:5px solid var(--teal)}.class-meta{font-size:13px;color:var(--muted)}.row{display:flex;align-items:center;justify-content:space-between;gap:12px}.row-wrap{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.small-btn{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 11px;color:var(--teal);font-size:14px}.small-btn.fill{background:var(--teal);color:white;border-color:var(--teal)}.small-btn.warn{color:#9c5c11;background:#fff8e8}.section-title{margin:31px 0 13px;font-size:17px}.report-card{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}.student-chip{display:inline-block;background:#eef6f5;color:#1e6d69;border-radius:99px;padding:5px 9px;margin:3px;font-size:13px}.form-card{max-width:930px}.field{margin:15px 0}.field textarea{min-height:100px;resize:vertical;line-height:1.6}.field textarea.tall{min-height:155px}.notice{padding:13px 15px;background:#fff8e7;border-left:4px solid var(--gold);border-radius:8px;color:#72501b;line-height:1.55;margin:16px 0}.split{display:grid;grid-template-columns:1fr 1fr;gap:18px}.tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);margin:20px 0}.tab{padding:11px 13px;background:none;color:var(--muted);border-bottom:2px solid transparent}.tab.active{color:var(--teal);border-color:var(--teal);font-weight:700}.student-block{border:1px solid var(--line);border-radius:14px;padding:17px;margin:14px 0;background:#fff}.student-block h3{margin:0;font-size:17px}.student-block textarea{min-height:90px}.check{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:14px}.photo-list{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}.photo{width:84px;height:84px;object-fit:cover;border-radius:9px;border:1px solid var(--line)}.drop{border:1px dashed #9ab5b7;padding:13px;border-radius:10px;color:var(--muted);text-align:center}.drop input{display:block;margin:7px auto 0;font-size:12px}.content-box{background:#f8fbfb;border:1px solid var(--line);padding:15px;border-radius:12px;line-height:1.7;white-space:pre-wrap}.metric{font-size:28px;font-weight:800;color:var(--teal)}.metric small{display:block;font-size:13px;color:var(--muted);font-weight:400;margin-top:4px}.toast{position:fixed;right:28px;top:94px;background:#18364d;color:#fff;padding:11px 16px;border-radius:10px;box-shadow:0 8px 25px #102b3d40;opacity:0;transform:translateY(-8px);transition:.2s;z-index:3}.toast.show{opacity:1;transform:none}.danger-text{color:var(--danger)}.empty{padding:30px;text-align:center;color:var(--muted);background:#fff;border-radius:16px;border:1px dashed var(--line)}@media(max-width:820px){.login{display:block;padding:110px 22px 40px;background:#f3faf9}.login>.brand{left:22px;top:30px}.login-card{margin:20px auto}.shell{display:block}.sidebar{flex-direction:row;overflow:auto;padding:8px}.nav{white-space:nowrap}.nav span,.side-note{display:none}.topbar{padding:0 15px}.top-actions{gap:8px}.top-actions #user-label{display:none}.content{padding:24px 15px}.split{grid-template-columns:1fr}.report-card{grid-template-columns:1fr}.page h2{font-size:25px}}
:root [hidden]{display:none!important}
.dimension-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:0 15px}.quality-pass{color:#17665f;background:#e4f5ef;padding:12px;border-radius:8px}.quality-result{overflow-wrap:anywhere}.student-block select{min-height:44px}
dialog{border:1px solid var(--line);border-radius:18px;padding:28px;width:min(640px,95vw);max-height:90vh;overflow:auto}dialog::backdrop{background:#17344d88}button:disabled{opacity:.55;cursor:wait}details{margin:20px 0}summary{cursor:pointer;color:var(--teal)}.photo-list>div{display:flex;flex-direction:column;gap:5px}.content>.page>.card{margin-bottom:18px}
/* Multi-source lesson library */
.resource-card{border:1px solid #dce5ec;border-radius:14px;padding:18px;margin:16px 0;background:#f8fafc}
.resource-card h4{overflow-wrap:anywhere;margin-top:0}
.resource-card textarea{min-height:180px;width:100%;box-sizing:border-box}
.poster-thumb{display:block;max-width:180px;max-height:260px;object-fit:contain;margin:12px 0}
.page-preview img{max-width:100%;height:auto;margin-top:16px}
.resource-status,#l-progress{white-space:pre-wrap;color:#32616d;overflow-wrap:anywhere}
/* 拓尔思教师工作台：蓝色导航、黄色当前步骤，文字与图标共同表示状态。 */
:root{--teal:#235cb4;--teal2:#e9f1ff;--gold:#f6c84c;--bg:#f4f7fc;--line:#dfe6f0}
.login{grid-template-columns:1fr 1fr;background:linear-gradient(135deg,#eef4ff 0%,#f8fbff 62%,#fff7d8 100%);padding:130px 8vw 65px;gap:7vw}.login>.brand{left:8vw;top:35px}.brand-story h2{font-size:clamp(30px,3.5vw,52px);line-height:1.4;margin:18px 0}.brand-story>p{color:#526887}.brand-story img{display:block;width:min(100%,450px);height:auto;margin-top:32px;border-radius:16px;border:1px solid #e2e8f0}.login-card{max-width:480px;width:100%;box-shadow:0 18px 55px #1f4c861a}.login h1{font-size:30px}.topbar{height:auto;min-height:84px;border-bottom:3px solid #f6c84c}.compact strong{font-size:18px}.sidebar{background:#173765}.nav.active{background:#f6c84c;color:#172e50}.nav:hover:not(.active){background:#274e80}.mark{background:#235cb4}.card{box-shadow:0 5px 22px #16376608}.small-btn:hover{background:#edf3ff;border-color:#8eaee0}.small-btn:focus-visible,button:focus-visible{outline:3px solid #f4bb24;outline-offset:3px}.student-block.student-pending{border-left:4px solid #f6c84c}.completion-badge{font-size:12px;background:#edf3fb;color:#345373;padding:5px 9px;border-radius:7px;white-space:nowrap}.flow-guide{border:1px solid #cadbf3;border-radius:18px;padding:22px;margin-bottom:26px;background:linear-gradient(115deg,#fff,#f0f6ff);box-shadow:0 8px 26px #173f7810}.flow-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.flow-heading h3{margin:6px 0 0;font-size:19px}.save-state{font-size:12px;color:#526884;white-space:nowrap}.flow-steps{display:flex;gap:10px;flex-wrap:wrap}.flow-step{flex:1;min-width:135px;text-align:left;border:1px solid #dce5f2;background:#fff;border-radius:12px;padding:12px;color:#65768e;font-size:14px}.flow-step>span{display:inline-grid;place-items:center;background:#edf1f7;border-radius:50%;width:24px;height:24px;margin-right:7px}.flow-step small{display:block;font-size:11px;margin:8px 0 0 31px}.flow-step.is-done{background:#edf8f4;border-color:#b8dece;color:#236549}.flow-step.is-done>span{background:#cbe9dc}.flow-step.is-next{background:#fff3c9;border:2px solid #e7b42a;color:#694e0c}.flow-step.is-next>span{background:#f5ce58}.flow-guide>p{font-size:13px;line-height:1.7;color:#61718a;margin:16px 0 0}.guided-next{outline:2px solid #edbe3e!important;outline-offset:4px}.flow-step:disabled{cursor:default;opacity:1}.toast{max-width:min(560px,calc(100vw - 40px));line-height:1.6}.student-block .row{flex-wrap:wrap}
@media(max-width:820px){.login{display:block;padding:120px 22px 35px}.login>.brand{left:22px}.brand-story{margin-bottom:24px}.brand-story h2{font-size:28px}.brand-story img{width:260px;margin-top:15px}.topbar{padding:12px;flex-wrap:wrap;gap:10px}.compact strong{font-size:15px}.flow-guide{padding:16px}.flow-heading{align-items:flex-start;flex-direction:column;gap:8px}.flow-step{min-width:120px}.flow-heading h3{font-size:17px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}
/* Persistent navigation and compact workflow/action docks on every page. */
.week-board{display:grid;grid-template-columns:repeat(4,minmax(150px,1fr));gap:12px;margin-top:16px}.week-day{background:#f1f5fc;border-radius:12px;padding:12px;min-width:0}.week-day h4{margin:0 0 12px}.schedule-class{display:block;width:100%;text-align:left;background:white;border:1px solid #d3dff0;border-left:4px solid var(--teal);padding:12px;border-radius:9px;margin:9px 0;color:var(--ink)}.schedule-class span{display:block;font-size:14px;line-height:1.7;margin-top:6px}.schedule-panel{margin-bottom:24px}.session-details{margin-bottom:20px}.schedule-class strong{overflow-wrap:anywhere}@media(max-width:1100px){.week-board{grid-template-columns:repeat(2,minmax(140px,1fr))}}@media(max-width:500px){.week-board{grid-template-columns:1fr}}
.library-heading{justify-content:space-between;margin-bottom:20px}.library-heading p{color:var(--muted)}
.library-filter-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:0 15px}.library-filters .field{margin:8px 0}
.library-group{margin:28px 0}.library-group>h3{border-left:5px solid var(--gold);padding-left:12px;font-size:21px}.library-group>h4{color:var(--muted);margin:18px 0 10px}
.library-card h3{margin-top:15px;overflow-wrap:anywhere}.library-card .row{flex-wrap:wrap}.library-confirmed{color:#236549;font-size:14px}.library-card p{font-size:14px}.library-heading>.small-btn{background:var(--teal);color:white;padding:12px 20px}
:root{--header-height:84px;--mobile-nav-height:0px}
.topbar{position:sticky;top:0;z-index:40}
.sidebar{position:sticky;top:var(--header-height);align-self:start;height:calc(100dvh - var(--header-height));overflow-y:auto}
.content{align-self:start;margin:0 auto;min-width:0}
.flow-guide{position:sticky;top:calc(var(--header-height) + var(--mobile-nav-height) + 6px);z-index:20;max-height:32dvh;overflow:auto;padding:12px 16px;background:#f5f9ff}
.flow-heading{margin-bottom:8px}.flow-heading .eyebrow{display:none}
.flow-guide>p{margin:8px 0 0}.flow-step{padding:8px;min-width:115px}.flow-step small{margin-top:3px}
.action-dock{position:sticky;bottom:0;z-index:21;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;display:flex;gap:8px;flex-wrap:wrap;box-shadow:0 -4px 18px #17376515}
dialog>p:last-child,dialog>.row-wrap:last-child{position:sticky;bottom:-28px;background:#fff;padding:14px 0;margin-bottom:0;z-index:2}
.field,[data-action]{scroll-margin-top:calc(var(--header-height) + var(--mobile-nav-height) + 32dvh + 12px)}
.toast{z-index:60;top:calc(var(--header-height) + 10px)}
@media(max-width:820px){.sidebar{height:auto;max-height:18dvh;z-index:35;overflow:auto}.flow-heading{flex-direction:row;align-items:center}.flow-heading h3{font-size:15px}.flow-steps{flex-wrap:nowrap;overflow-x:auto}.flow-step{flex:0 0 125px}.flow-guide>p{display:none}.flow-guide{max-height:25dvh}.action-dock{padding:8px}}
.class-quick-wrap{position:relative;padding-right:32px}.class-quick-remove{position:absolute;right:0;top:0;width:28px;height:28px;padding:0;border:1px solid #e6b6b6;border-radius:8px;background:#fff1f1;color:#a42323;font-size:22px;line-height:24px;cursor:pointer}.class-quick-remove:hover{background:#ffdddd}
.import-class{margin:12px 0}.import-class label{display:block;margin:8px 0}#class-import-dialog{width:min(920px,94vw)}#class-import-dialog>details label{display:block;margin:6px 0}
#campus-switch-label{display:flex;align-items:center;gap:6px;white-space:nowrap;font-size:13px}#campus-switch{width:auto;min-width:130px;padding:7px 9px;border:1px solid #82a9cc;border-radius:9px;background:#eef6ff;color:#173765}.top-actions{flex-wrap:wrap}
.admin-tabs{display:flex;gap:8px;flex-wrap:wrap;position:sticky;top:calc(var(--header-height) + 8px);z-index:22;padding:12px;background:#f5f9ff;border-radius:12px;margin-bottom:16px}.admin-tabs button{padding:10px 16px;border:1px solid #c9d9e8;border-radius:9px;background:white;color:#23445e;cursor:pointer}.admin-tabs button[aria-selected="true"]{background:#2468a3;color:white;border-color:#2468a3}.calendar-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}.calendar-day{border:1px solid #d8e3ee;border-radius:10px;min-height:140px;padding:8px;background:#fff;min-width:0}.calendar-day h3{font-size:14px;margin:0 0 10px}.calendar-day.is-today{border:2px solid #2d7cb7;background:#f2f8ff}.calendar-event{display:block;width:100%;text-align:left;padding:8px;margin:5px 0;border:0;border-left:3px solid #3989bf;background:#eaf4fc;border-radius:6px;cursor:pointer;overflow-wrap:anywhere}.calendar-event span,.calendar-event small{display:block;margin-top:4px;font-size:12px}.calendar-day .muted{font-size:12px}.calendar-day.calendar-day{overflow:hidden}.calendar-grid.calendar-day{grid-template-columns:1fr}.calendar-controls label{display:inline-flex;align-items:center;gap:8px;margin:4px}.calendar-controls input,.calendar-controls select{width:auto}.calendar-week .calendar-day{min-height:260px}@media(max-width:1000px){.calendar-grid{min-width:780px}#admin-panel-calendar{overflow:auto}.calendar-grid.calendar-day{min-width:0}.admin-tabs{top:calc(var(--header-height) + var(--mobile-nav-height) + 6px)}}
#settings-page > .flow-guide{display:none}