:root{--ink:#10233f;--admin-scale:1.1;--muted:#6b7c93;--line:#e7edf5;--bg:#f5f8fc;--card:#fff;--brand:#1d4ed8;--teal:#0f766e;--bad:#dc2626;--ok:#059669}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:13px}
button,input,select,textarea{font:inherit}
.app{display:grid;grid-template-columns:var(--admin-side,244px) 1fr;min-height:calc(100vh / var(--admin-scale));position:relative;zoom:var(--admin-scale);width:calc(100% / var(--admin-scale))}
.side{background:#10233f;color:#d9e6f4;padding:26px 16px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:calc(100vh / var(--admin-scale))}
.side-resizer{position:absolute;top:0;bottom:0;left:calc(var(--admin-side,244px) - 3px);width:7px;z-index:55;cursor:col-resize;outline:none}
.side-resizer:after{content:"";position:absolute;top:50%;left:3px;width:1px;height:44px;margin-top:-22px;background:rgba(255,255,255,.18);border-radius:99px;transition:.15s}
.side-resizer:hover:after,.side-resizer:focus:after{width:3px;left:2px;height:70px;margin-top:-35px;background:var(--brand)}
body.side-resizing{cursor:col-resize;user-select:none}
body.side-resizing .side-resizer:after{width:3px;left:2px;height:70px;margin-top:-35px;background:var(--brand)}
.brand{display:flex;align-items:center;gap:11px;padding:0 8px 28px}
.mark{width:40px;height:40px;border-radius:11px;background:#fff;display:grid;place-items:center;color:#06252b;font-weight:800;font-size:15px;overflow:hidden;border:1px solid rgba(255,255,255,.55)}
.mark img{width:100%;height:100%;object-fit:contain;display:block;border-radius:inherit;padding:3px}
.brand b{display:block;font-size:14px;color:#fff;letter-spacing:.03em}.brand span{display:block;font-size:8px;color:#8fa6c0;letter-spacing:.16em;margin-top:3px}
.side-label{font-size:9px;color:#6f87a1;letter-spacing:.16em;text-transform:uppercase;padding:0 10px 10px}
nav{display:flex;flex-direction:column;gap:3px}
.navbtn{border:0;background:transparent;color:#a9bdd1;display:flex;align-items:center;gap:11px;height:39px;padding:0 11px;border-radius:9px;cursor:pointer;text-align:left;font-size:12.5px;transition:.14s}
.navbtn span{width:17px;text-align:center;opacity:.7}
.navbtn:hover{background:rgba(255,255,255,.06);color:#fff}.navbtn.on{background:rgba(45,212,191,.13);color:#6ee7dc}
.navbtn.hide{display:none}
.side-bottom{margin-top:auto;padding:12px 8px 0;border-top:1px solid rgba(255,255,255,.09)}
.side-bottom .side-practice{width:100%;margin:0 0 12px;background:rgba(45,212,191,.10);border:1px solid rgba(45,212,191,.20);color:#6ee7dc}
.side-bottom .side-practice:hover{background:rgba(45,212,191,.18);color:#fff;border-color:rgba(45,212,191,.35)}
.mini{font-size:10px;line-height:1.7;color:#748ba3;margin-bottom:12px}
.logout{border:1px solid rgba(255,255,255,.14);background:transparent;color:#b7c9db;border-radius:7px;padding:7px 10px;cursor:pointer;width:100%;font-size:11.5px}
.logout:hover{background:rgba(255,255,255,.06);color:#fff}
.main{min-width:0;padding:30px clamp(24px,4vw,58px) 60px}
.top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:28px}
.top>div:first-child{min-width:0;flex:1}
.top h1{white-space:nowrap}
.crumb{font-size:10px;color:#94a3b8;letter-spacing:.06em;margin-bottom:7px}.crumb b{color:#64748b;font-weight:600}
h1{font-size:26px;letter-spacing:-.03em;margin:0;font-weight:720}
.who{display:flex;align-items:center;gap:8px;font-size:12px;color:#475569;white-space:nowrap}
.who small{font-size:10px;color:#94a3b8;border:1px solid #e2e8f0;border-radius:999px;padding:3px 7px}
.avatar{width:31px;height:31px;border-radius:50%;background:#e3f2f0;color:#0f766e;display:grid;place-items:center;font-weight:700;font-size:12px;margin-left:4px}
.view{max-width:1400px}
.loading,.empty{padding:45px 10px;text-align:center;color:#94a3b8;font-size:12px}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:17px 18px;box-shadow:0 2px 6px rgba(15,23,42,.025)}
.stat .k{font-size:10px;color:#8a9bb0;letter-spacing:.08em;text-transform:uppercase}.stat .v{font-size:27px;font-weight:720;letter-spacing:-.04em;margin-top:8px}.stat .d{font-size:10px;color:#94a3b8;margin-top:4px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:0 2px 6px rgba(15,23,42,.025);overflow:hidden}
.card-h{display:flex;align-items:center;gap:10px;padding:15px 18px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.card-h>div:first-child{min-width:170px;flex:1}
.card-h h2{font-size:14px;margin:0;font-weight:680}.card-h .sub{font-size:10px;color:#94a3b8;margin-top:3px}
.card-h .tools{margin-left:auto;display:flex;gap:7px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.btn{border:1px solid #dbe4ef;background:#fff;color:#334155;border-radius:8px;height:30px;padding:0 11px;cursor:pointer;font-size:11.5px;white-space:nowrap}
.btn:hover{background:#f8fbff;border-color:#bfd4ee;color:#1d4ed8}.btn.pri{background:linear-gradient(135deg,#1d4ed8,#0f766e);border:0;color:#fff}.btn.danger{color:#b91c1c;border-color:#fecaca}.btn.sm{height:26px;padding:0 8px;font-size:10.5px}
input,select,textarea{border:1px solid #dbe4ef;border-radius:8px;height:32px;padding:0 9px;background:#fbfdff;color:#1e293b;outline:none;font-size:12px;min-width:0}
input:focus,select:focus,textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 3px rgba(147,197,253,.16);background:#fff}
textarea{height:78px;padding:8px 9px;resize:vertical}
table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:10px;font-weight:650;color:#8a9bb0;letter-spacing:.05em;background:#fbfdff;border-bottom:1px solid var(--line);padding:10px 18px;white-space:nowrap}
td{padding:11px 18px;border-bottom:1px solid #f1f5f9;font-size:12px;vertical-align:middle}
tr:last-child td{border-bottom:0}.row:hover td{background:#fbfdff}
.muted{color:#94a3b8}.tiny{font-size:10px}.strong{font-weight:650}
.pill{font-size:9.5px;border-radius:999px;padding:3px 7px;background:#eef4ff;color:#1d4ed8;white-space:nowrap}
.pill.g{background:#ecfdf5;color:#047857}.pill.y{background:#fffbeb;color:#b45309}.pill.r{background:#fef2f2;color:#b91c1c}
.row-actions{display:flex;gap:5px;justify-content:flex-end}
.filters{display:flex;gap:7px;flex-wrap:wrap;align-items:center;padding:12px 18px;border-bottom:1px solid var(--line);background:#fcfdff}
.filters select,.filters input{height:29px;font-size:11px}.filters .spacer{flex:1}
.list-empty{padding:35px;text-align:center;color:#94a3b8;font-size:12px}
.class-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:16px}
.class-card{border:1px solid var(--line);border-radius:11px;padding:14px;background:#fcfdff}
.class-card h3{margin:0 0 4px;font-size:13px}.class-card p{margin:0;color:#94a3b8;font-size:10px}
.class-card .nums{display:flex;gap:13px;margin-top:12px;font-size:10px;color:#64748b}.class-card .nums b{font-size:15px;color:#1e293b;margin-right:3px}
.admin-bank .bank-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:10px}
.admin-bank .bank-head h1{font-size:26px;letter-spacing:-.03em;margin:0}
.admin-bank .bank-head .sub{font-size:11px;color:#94a3b8;margin:5px 0 0;line-height:1.6}
.admin-bank .bank-head .tools{display:flex;gap:7px;align-items:center;flex-wrap:wrap}
.bank-tabs{display:flex;align-items:center;gap:4px;margin:14px 0 4px;border-bottom:1px solid var(--line);overflow:auto}
.bank-tab{border:0;background:none;color:#64748b;font-size:12px;padding:9px 10px;border-bottom:2px solid transparent;cursor:pointer;white-space:nowrap}
.bank-tab b{font-size:9px;font-weight:600;color:#94a3b8;margin-left:5px;background:#f1f5f9;border-radius:99px;padding:1px 6px}
.bank-tab:hover{color:#1d4ed8}.bank-tab.on{color:#1d4ed8;border-bottom-color:#1d4ed8;font-weight:600}.bank-tab.on b{background:#e8efff;color:#1d4ed8}
.admin-bank-mod{margin-top:22px}.admin-bank-mod h2{font-size:14px;margin:0 0 12px;display:flex;align-items:baseline;gap:8px}
.admin-bank-mod h2 span{font-size:10px;font-weight:400;color:#94a3b8}
.admin-bank-src{font-size:12px;color:#35566d;margin:18px 0 9px;font-weight:650}
.admin-bank-src span{font-size:10px;color:#94a3b8;font-weight:400;margin-left:6px}
.admin-speak-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:9px}
.admin-speak-card{display:flex;flex-direction:column;gap:5px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:12px 13px;text-decoration:none;transition:.14s}
.admin-speak-card:hover{border-color:#1d4ed8;background:#f5f8ff;transform:translateY(-1px)}
.admin-speak-card b{font-size:12px;color:#334155}.admin-speak-card:hover b{color:#1d4ed8}
.admin-speak-card span{font-size:9.5px;color:#94a3b8}
.admin-bank-books{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:12px}
.admin-book{border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 2px 6px rgba(15,23,42,.025);overflow:hidden}
.admin-book-head{display:flex;align-items:center;gap:10px;padding:14px 16px;cursor:pointer;user-select:none;transition:.14s}
.admin-book-head:hover{background:#f7fbfd}.admin-book-title{min-width:0;flex:1}
.admin-book-title b{display:block;font-size:15px;color:#10233f;margin-bottom:3px}
.admin-book-title span{display:block;font-size:10px;color:#94a3b8}
.admin-book-count{font-size:10px;color:#0f766e;background:#ecfdf5;border:1px solid #ccfbf1;border-radius:999px;padding:3px 7px;white-space:nowrap}
.admin-chevron{color:#94a3b8;font-size:17px;line-height:1;transition:transform .16s;margin-left:2px}
.admin-book.open .admin-chevron{transform:rotate(90deg)}
.admin-book-tests{display:none;padding:0 12px 12px;gap:8px;grid-template-columns:1fr}
.admin-book.open .admin-book-tests{display:grid}
.admin-test{border:1px solid #e6edf3;border-radius:10px;background:#fcfdff;padding:9px 10px}
.admin-test-head{display:flex;align-items:center;gap:8px;margin-bottom:6px}.admin-test-head b{font-size:11px;color:#334155}
.admin-test-head a{margin-left:auto;font-size:10px;color:#1d4ed8;text-decoration:none;white-space:nowrap}
.admin-test-head a:hover{text-decoration:underline}
.admin-test-parts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}
.admin-part{display:flex;align-items:center;justify-content:space-between;gap:6px;border:1px solid #dbe5ed;border-radius:6px;background:#fff;padding:6px 7px;text-decoration:none;min-width:0}
.admin-part:hover{border-color:#1d4ed8;background:#f5f8ff}
.admin-part b{font-size:10px;color:#35566d;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.admin-part span{font-size:9px;color:#94a3b8;white-space:nowrap}
.admin-part:hover b{color:#1d4ed8}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.35);display:grid;place-items:center;z-index:50;padding:18px}
.modal-box{background:#fff;border-radius:16px;width:min(620px,100%);max-height:88vh;overflow:auto;box-shadow:0 24px 80px rgba(15,23,42,.28);border:1px solid rgba(255,255,255,.5)}
.modal-box.class-modal{width:min(860px,100%)}
.class-sec{border-top:1px solid #eef2f7;padding-top:12px;margin-top:1px}
.class-sec-h{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.class-sec-h b{font-size:11.5px;color:#334155}.class-sec-h span{font-size:9.5px;color:#94a3b8}
.class-subject-row{display:grid;grid-template-columns:64px 1fr;gap:7px;align-items:start;padding:6px 0;border-bottom:1px dashed #f1f5f9}
.class-subject-row:last-child{border-bottom:0}
.class-subject-name{font-size:10.5px;color:#64748b;padding-top:5px}
.class-picks{display:flex;flex-wrap:wrap;gap:5px}
.class-pick{display:flex;align-items:center;gap:4px;border:1px solid #e2e8f0;border-radius:6px;padding:4px 6px;background:#fbfdff;font-size:10.5px;color:#475569;cursor:pointer}
.class-pick:hover{border-color:#bfdbfe;background:#f5f8ff}
.class-pick input{height:auto;width:auto;accent-color:#0f766e}
.class-pick span{display:flex;flex-direction:column;line-height:1.2}.class-pick small{font-size:8.5px;color:#94a3b8}
.new-student-box{margin-top:10px;border:1px dashed #dbe6f1;border-radius:9px;padding:9px 10px;background:#fbfdff}
.new-student-head{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;margin-bottom:7px}
.new-student-head b{font-size:10.5px;color:#334155}.new-student-head span{font-size:9px;color:#94a3b8}.new-student-head .btn{margin-left:auto}
.new-student-row{display:grid;grid-template-columns:1fr 1fr auto;gap:6px;align-items:center;margin-top:6px}
.new-student-row input{height:28px;font-size:10.5px}
@media(max-width:760px){.new-student-row{grid-template-columns:1fr 1fr}.new-student-row .btn{grid-column:1/-1}}
.modal-h{display:flex;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line)}.modal-h h3{margin:0;font-size:15px}.modal-h button{margin-left:auto;border:0;background:none;font-size:18px;color:#94a3b8;cursor:pointer}
.modal-b{padding:18px 20px}.modal-f{padding:12px 20px 18px;display:flex;justify-content:flex-end;gap:8px;border-top:1px solid var(--line)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.form-grid .full{grid-column:1/-1}
.field label{display:block;font-size:10px;color:#64748b;font-weight:600;margin-bottom:5px}.field input,.field select,.field textarea{width:100%}
.checks{display:flex;flex-wrap:wrap;gap:6px}.checks label{display:flex;align-items:center;gap:5px;font-size:11px;color:#475569;border:1px solid #e2e8f0;border-radius:6px;padding:5px 7px;cursor:pointer;background:#fbfdff}.checks input{height:auto;width:auto;accent-color:#0f766e}
.note{font-size:10px;line-height:1.6;color:#94a3b8;margin:8px 0 0}
.feedback-item{border:1px solid #eef2f7;background:#fbfdff;border-radius:8px;padding:9px 11px;margin-top:8px;font-size:11.5px;line-height:1.6}.feedback-item b{color:#0f766e;font-size:10px;font-weight:600;margin-right:6px}
.target-row{display:grid;grid-template-columns:1fr 80px 1fr auto;gap:8px;align-items:center;padding:8px 0;border-bottom:1px solid #f1f5f9}.target-row:last-child{border:0}
.target-row .name{font-size:11.5px;font-weight:600}.target-row .status{font-size:10px;color:#94a3b8}.target-row textarea{height:34px;min-height:34px;font-size:10.5px;padding:6px 7px}
#toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,12px);background:#10233f;color:#fff;border-radius:8px;padding:9px 16px;font-size:12px;opacity:0;pointer-events:none;transition:.2s;z-index:100}
#toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 皮肤画板按钮 / 抽屉 ---------- */
.skin-fab{position:fixed;right:22px;bottom:22px;z-index:45;width:54px;height:54px;border:0;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;color:#fff;
  background:linear-gradient(135deg,#1d4ed8,#0f766e);box-shadow:0 12px 28px rgba(15,23,42,.24),0 0 0 5px rgba(255,255,255,.55);
  transition:transform .16s,box-shadow .16s}
.skin-fab:hover{transform:translateY(-2px) rotate(-4deg);box-shadow:0 16px 34px rgba(15,23,42,.28),0 0 0 5px rgba(255,255,255,.7)}
.skin-fab:active{transform:translateY(0) scale(.96)}
.skin-fab svg{width:27px;height:27px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.skin-fab svg circle{fill:currentColor;stroke:none}
.skin-scrim{position:fixed;inset:0;z-index:88;background:rgba(15,23,42,.28);backdrop-filter:blur(2px)}
.skin-drawer{position:fixed;right:18px;bottom:88px;z-index:89;width:min(560px,calc(100vw - 24px));height:min(790px,calc(100vh - 108px));
  display:flex;flex-direction:column;background:#f8fbfd;border:1px solid rgba(148,163,184,.28);border-radius:18px;
  box-shadow:0 26px 80px rgba(15,23,42,.3);overflow:hidden}
.skin-drawer[hidden],.skin-scrim[hidden]{display:none}
.skin-drawer-head{display:flex;align-items:center;gap:10px;padding:13px 16px;background:#fff;border-bottom:1px solid var(--line);flex:none}
.skin-drawer-head b{display:block;font-size:13px;color:#10233f}.skin-drawer-head span{display:block;font-size:10px;color:#94a3b8;margin-top:2px}
.skin-drawer-head button{margin-left:auto;width:30px;height:30px;border:1px solid var(--line);border-radius:8px;background:#fff;color:#64748b;font-size:20px;line-height:1;cursor:pointer}
.skin-drawer-head button:hover{background:#f1f5f9;color:#10233f}
.skin-drawer-body{flex:1;min-height:0;overflow:auto;padding:14px}
.skin-drawer .sk-page{max-width:none}
.skin-drawer .sk-head{margin-bottom:8px;justify-content:flex-end}
.skin-drawer .sk-head .sk-eyebrow,.skin-drawer .sk-head h2,.skin-drawer .sk-head p{display:none}
.skin-drawer .sk-kpis{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin-bottom:10px}
.skin-drawer .sk-kpi{padding:9px 11px}.skin-drawer .sk-kpi b{font-size:17px}
.skin-drawer .sk-grid{grid-template-columns:1fr;gap:10px}
.skin-drawer .sk-card-themes{grid-column:auto}
.skin-drawer .sk-theme-grid{grid-template-columns:repeat(3,minmax(0,1fr));padding:10px 12px 6px}
.skin-drawer .sk-grad-grid{grid-template-columns:repeat(4,minmax(0,1fr));max-height:210px}
.skin-drawer .sk-card-h{padding:10px 12px}.skin-drawer .sk-more{margin-top:0}
.skin-drawer .sk-controls{padding:10px 12px 12px}.skin-drawer .sk-actions{padding:10px 12px}.skin-drawer .sk-note{padding:0 12px 12px}
.skin-drawer .sk-head .sk-switch{font-size:11px;padding:5px 9px}
.skin-drawer .sk-off{padding:9px 11px;font-size:11px}

/* ---------- 班级展开学生 ---------- */
.class-card{cursor:pointer;transition:border-color .15s,box-shadow .15s}
.class-card:hover{border-color:#c7d9e8;box-shadow:0 5px 16px rgba(15,23,42,.05)}
.class-card .class-top{display:flex;align-items:flex-start;gap:8px}
.class-card .class-chevron{margin-left:auto;color:#94a3b8;font-size:13px;transition:transform .18s;flex:none}
.class-card.open .class-chevron{transform:rotate(90deg)}
.class-students{display:none;margin-top:12px;padding-top:10px;border-top:1px solid #eef2f7}
.class-card.open .class-students{display:block}
.class-student{display:flex;align-items:center;gap:8px;padding:7px 4px;border-radius:7px;cursor:pointer}
.class-student:hover{background:#f3f8fc}
.class-student .cs-avatar{width:25px;height:25px;border-radius:50%;display:grid;place-items:center;background:#e6f4f2;color:#0f766e;font-size:10px;font-weight:700;flex:none}
.class-student .cs-main{min-width:0;flex:1}.class-student .cs-main b{display:block;font-size:11px;color:#334155;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.class-student .cs-main small{display:block;font-size:9.5px;color:#94a3b8}
.class-student .cs-pill{font-size:9px;color:#0f766e;background:#ecfdf5;border-radius:999px;padding:2px 6px}
.class-empty{font-size:10px;color:#94a3b8;padding:8px 4px}
.ov-act{cursor:pointer;transition:background .15s}.ov-act:hover{background:#f8fbff}
.act-dates{display:flex;align-items:center;gap:5px;font-size:10px;color:#94a3b8}.act-dates input{height:27px;font-size:10.5px;width:124px}
.student-profile-head{display:flex;align-items:center;gap:11px;padding-bottom:12px;border-bottom:1px solid #eef2f7;margin-bottom:12px}
.student-avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#2dd4bf,#60a5fa);color:#fff;font-size:16px;font-weight:700;flex:none}
.student-profile-head h3{margin:0 0 3px;font-size:16px}.student-profile-head .pill{margin-left:auto}
.student-stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-bottom:13px}
.student-stat-grid div{background:#f8fbfd;border:1px solid #e7edf5;border-radius:8px;padding:8px 10px}
.student-stat-grid b{display:block;font-size:18px;color:#10233f}.student-stat-grid span{display:block;font-size:9.5px;color:#94a3b8;margin-top:1px}
.student-section{margin-top:13px}.student-section h4{font-size:10px;color:#8a9bb0;letter-spacing:.05em;margin:0 0 6px}
.student-act{display:flex;align-items:center;gap:8px;padding:7px 0;border-bottom:1px solid #f1f5f9}.student-act:last-child{border-bottom:0}
.student-act-main{min-width:0;flex:1}.student-act-main b{display:block;font-size:11px;color:#334155;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.student-act-main small{display:block;font-size:9.5px;color:#94a3b8;margin-top:2px}
.student-empty{font-size:10px;color:#94a3b8;padding:6px 0}

@media(max-width:1050px){.grid{grid-template-columns:repeat(2,1fr)}.class-grid{grid-template-columns:repeat(2,1fr)}.bank-tree{grid-template-columns:1fr}.card{overflow-x:auto}.card>table{min-width:700px}}
@media(max-width:980px){.top{flex-wrap:wrap}.top .who{margin-left:auto}}
@media(max-width:760px){.app{grid-template-columns:1fr}.side{position:static;height:auto;padding:16px;display:block}.brand{padding-bottom:14px}nav{flex-direction:row;overflow:auto;padding-bottom:4px}.side-label,.side-bottom{display:none}.main{padding:20px 16px 50px}.top{margin-bottom:18px;flex-wrap:wrap}.top .who{margin-left:auto}.grid{grid-template-columns:repeat(2,1fr)}.class-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.modal-box{max-height:94vh}.target-row{grid-template-columns:1fr 65px auto}.target-row textarea{grid-column:1/-1}.side-resizer{display:none}.skin-fab{right:15px;bottom:15px;width:49px;height:49px}.skin-drawer{right:8px;bottom:76px;width:calc(100vw - 16px);height:calc(100vh - 90px)}.admin-bank-books{grid-template-columns:1fr}.admin-bank .bank-head .tools input{width:100%!important}}

/* ---------- vocabulary records ---------- */
.vocab-preview{font-size:10.5px;color:#334155;font-weight:600}
.vocab-preview + .muted{margin-left:3px}
.vocab-detail-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;margin-bottom:10px}
.vocab-detail-stats div{background:#f8fbfd;border:1px solid #e7edf5;border-radius:8px;padding:8px 10px}
.vocab-detail-stats b{display:block;font-size:18px;color:#10233f}.vocab-detail-stats span{display:block;font-size:9.5px;color:#94a3b8;margin-top:1px}
.vocab-words{width:100%;border-collapse:collapse;font-size:10.5px}
.vocab-words th{text-align:left;font-size:9px;color:#94a3b8;padding:6px 7px;border-bottom:1px solid #eef2f7;position:sticky;top:0;background:#fbfdff}
.vocab-words td{padding:6px 7px;border-bottom:1px solid #f1f5f9;color:#475569}.vocab-words td b{color:#10233f}
.ok{color:#059669}.bad{color:#dc2626}

/* ---------- student feedback ---------- */
.fb-context{font-size:10px;color:#0f766e;background:#ecfdf5;border:1px solid #ccfbf1;border-radius:6px;padding:6px 9px;margin-bottom:11px}
#fbText{width:100%;height:110px;border:1px solid #dbe4ef;border-radius:8px;padding:9px 10px;font:12px/1.7 inherit;outline:none;resize:vertical}
#fbText:focus{border-color:#60a5fa;box-shadow:0 0 0 3px rgba(96,165,250,.12)}
.fb-attach{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:8px}
.fb-history{margin-top:14px;border-top:1px solid #eef2f7;padding-top:10px;max-height:32vh;overflow:auto}
.fb-history-title{font-size:10px;color:#94a3b8;margin-bottom:5px}
.fb-history-item{border:1px solid #eef2f7;background:#fbfdff;border-radius:8px;padding:8px 10px;margin-top:6px}
.fb-history-meta{display:flex;justify-content:space-between;gap:8px;font-size:9.5px;color:#94a3b8}.fb-history-meta b{color:#0f766e;font-size:10px}
.fb-history-text{font-size:11.5px;line-height:1.65;color:#334155;margin-top:4px;white-space:pre-wrap}
.fb-files{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}.fb-files img{width:54px;height:54px;object-fit:cover;border-radius:6px;border:1px solid #e2e8f0}
.fb-file{font-size:10px;color:#1d4ed8;text-decoration:none;background:#eff6ff;border:1px solid #dbeafe;border-radius:5px;padding:4px 6px}
.fb-empty{font-size:10px;color:#94a3b8;padding:6px 0}

/* ---------- vocabulary feedback by student ---------- */
.vset-chip{display:inline-flex;align-items:baseline;gap:4px;border:1px solid #e2e8f0;background:#fbfdff;border-radius:999px;padding:3px 7px;font-size:9.5px;color:#475569;white-space:nowrap;margin:1px 0}
.vset-chip b{font-size:10px;color:#0f766e}.vset-chip small{font-size:8.5px;color:#dc2626}
.vword-chip{display:inline-flex;align-items:baseline;gap:3px;border:1px solid #fee2e2;background:#fff7f7;border-radius:6px;padding:3px 6px;font-size:9.5px;color:#9f1239;margin:1px 0;max-width:180px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vword-chip b{font-size:9px;color:#dc2626}
.vh-libs{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:9px}
.vh-hf{border-top:1px solid #eef2f7;border-bottom:1px solid #eef2f7;padding:8px 0;margin-bottom:9px}.vh-hf>b{font-size:10px;color:#94a3b8;margin-right:6px}
.vh-list{max-height:38vh;overflow:auto;border:1px solid #eef2f7;border-radius:8px}
.vh-row{display:flex;align-items:center;gap:8px;padding:8px 10px;border-bottom:1px solid #f1f5f9}.vh-row:last-child{border-bottom:0}
.vh-row:hover{background:#fbfdff}.vh-main{min-width:0;flex:1}.vh-main b{display:block;font-size:11px;color:#334155}.vh-main small{display:block;font-size:9.5px;color:#94a3b8;margin-top:2px}
.link-name{border:0;background:none;padding:0;color:#1d4ed8;font:inherit;font-weight:600;text-align:left;cursor:pointer}.link-name:hover{text-decoration:underline}
button.tch-stat{display:block;width:100%;text-align:left;font:inherit;cursor:pointer;color:inherit;transition:.14s}
button.tch-stat:hover{border-color:#bfd7e6;box-shadow:0 5px 16px rgba(15,23,42,.06)}

/* ---------- feedback archive ---------- */
.fb-filter-row{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin:11px 0 13px}
.fb-filter-row select,.fb-filter-row input[type="search"]{height:32px;border:1px solid #dbe4ef;border-radius:8px;background:#fff;font:11px/1 inherit;padding:0 8px;outline:none}
.fb-filter-row input[type="search"]{width:210px}
.fb-filter-row select:focus,.fb-filter-row input:focus{border-color:#60a5fa;box-shadow:0 0 0 3px rgba(96,165,250,.12)}
.admin-feedback-list{display:grid;gap:8px}
.admin-feedback-card{border:1px solid #eef2f7;border-radius:9px;padding:10px 12px;background:#fcfdff}
.admin-feedback-h{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-size:10px;color:#64748b}
.admin-feedback-h time{margin-left:auto;font-size:9.5px;color:#94a3b8}
.admin-feedback-text{font-size:12px;line-height:1.7;color:#334155;white-space:pre-wrap;margin-top:6px}
.admin-feedback-meta{font-size:9.5px;color:#94a3b8;margin-top:5px}
@media(max-width:760px){.fb-filter-row input[type="search"]{width:100%}}
.navbtn .admin-nav-badge{width:auto;min-width:16px;height:16px;padding:0 4px;margin-left:auto;border-radius:999px;background:#dc2626;color:#fff;font-size:9px;font-weight:700;line-height:16px;text-align:center;opacity:1}
.navbtn .admin-nav-badge[hidden]{display:none}
/* 折叠卡独立高度：避免同一 grid 行里一个展开就把其他卡撑成等高空白 */
.admin-bank-books,.class-grid{align-items:start}
.avatar{border:0;padding:0;overflow:hidden;cursor:pointer;font-family:inherit}
.avatar img{width:100%;height:100%;object-fit:cover;display:block}
.avatar:hover{box-shadow:0 0 0 3px #ccfbf1}
.profile-avatar-row{display:flex;align-items:center;gap:13px;padding:2px 0 14px;border-bottom:1px solid #eef2f7;margin-bottom:13px}
.profile-avatar{width:70px;height:70px;border-radius:50%;border:0;padding:0;overflow:hidden;background:linear-gradient(145deg,#2dd4bf,#60a5fa);color:#fff;font:700 25px inherit;display:grid;place-items:center;cursor:pointer;flex:none}
.profile-avatar img{width:100%;height:100%;object-fit:cover;display:block}
.profile-avatar-copy{min-width:0}.profile-avatar-copy b{font-size:13px}.profile-avatar-copy p{font-size:11px;color:#94a3b8;margin:3px 0 8px;line-height:1.5}
.profile-actions{display:flex;gap:6px;flex-wrap:wrap}
.profile-tip{font-size:10.5px;color:#94a3b8;line-height:1.6;margin-top:9px}
.admin-exam-list{display:flex;flex-direction:column;gap:7px}
.admin-exam-row{border:1px solid #e7edf5;border-radius:8px;background:#fbfdff;padding:8px 10px}
.admin-exam-h{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.admin-exam-h b{font-size:11px;color:#334155}
.admin-exam-h span{font-size:10px;color:#94a3b8}.admin-exam-h .btn{margin-left:auto}
.admin-exam-scores{font-size:11px;color:#475569;margin-top:4px}.admin-exam-note{font-size:10.5px;color:#94a3b8;margin-top:3px;white-space:pre-wrap}
.student-goal{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 12px;padding:9px 11px;background:#f0fdfa;border:1px solid #ccfbf1;border-radius:9px;font-size:11px;color:#0f766e}
.student-goal b{color:#115e59}.student-goal span{color:#3b7a70}
.class-student .cs-avatar{overflow:hidden}.class-student .cs-avatar img{width:100%;height:100%;object-fit:cover;display:block}
.student-avatar{overflow:hidden}.student-avatar img{width:100%;height:100%;object-fit:cover;display:block}
.class-student .cs-main small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block}
.student-goal[hidden]{display:none}
.voice-btn.recording{background:#fef2f2;border-color:#fecaca;color:#b91c1c}
.voice-list{display:flex;gap:5px;flex-wrap:wrap;width:100%;margin-top:3px}
.voice-pill{display:inline-flex;align-items:center;gap:4px;max-width:100%;background:#f0fdfa;border:1px solid #ccfbf1;color:#0f766e;border-radius:999px;padding:2px 7px;font-size:10px}
.voice-pill button{border:0;background:transparent;color:#94a3b8;cursor:pointer;font-size:13px;line-height:1;padding:0 1px}
.voice-clip{display:flex;flex-direction:column;gap:2px;min-width:190px;max-width:100%}
.voice-clip audio{width:210px;max-width:100%;height:32px}
.voice-clip span{font-size:9px;color:#94a3b8;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.modal-box.writing-modal{width:min(1040px,96vw)}
.writing-review{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,.8fr);gap:14px;min-height:420px}
.writing-review-main{min-width:0;border:1px solid #e7edf5;border-radius:10px;background:#fbfdff;overflow:hidden}
.wr-meta{padding:8px 12px;border-bottom:1px solid #eef2f7;font-size:10px;color:#94a3b8}
.wr-text{padding:16px 18px;font:14px/1.9 ui-serif,Georgia,"Times New Roman",serif;white-space:pre-wrap;max-height:64vh;overflow:auto;color:#263238;user-select:text}
.wr-hl{border-radius:2px;padding:1px 0;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.wr-yellow{background:#fef3c7;color:#78350f}.wr-green{background:#dcfce7;color:#166534}.wr-blue{background:#dbeafe;color:#1e40af}.wr-pink{background:#fce7f3;color:#9d174d}.wr-orange{background:#ffedd5;color:#9a3412}
.writing-review-side{min-width:0;display:flex;flex-direction:column;gap:10px;max-height:64vh;overflow:auto}
.wr-tools{border:1px solid #e7edf5;border-radius:9px;padding:10px;background:#f8fbfd}
.wr-tools>b{font-size:11px;color:#334155;display:block;margin-bottom:7px}
.wr-colors{display:flex;gap:5px;margin-bottom:7px}.wr-color{width:20px;height:20px;border-radius:50%;border:2px solid #fff;cursor:pointer;box-shadow:0 0 0 1px #dbe5ed}.wr-color.on{box-shadow:0 0 0 2px #0f766e}
.wr-tools textarea{width:100%;border:1px solid #dbe5ed;border-radius:7px;padding:7px;font:11px/1.6 inherit;resize:vertical;margin-bottom:6px}
.wr-notes{border:1px solid #e7edf5;border-radius:9px;padding:9px;background:#fff;overflow:auto}.wr-notes>b{font-size:10px;color:#94a3b8;display:block;margin-bottom:5px}
.wr-note{border-bottom:1px solid #f0f4f7;padding:6px 0}.wr-note:last-child{border-bottom:0}.wr-note-h{display:flex;align-items:center;gap:5px}.wr-note-h b{font-size:10px;color:#334155;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:180px}.wr-note-h .btn{margin-left:auto}.wr-note p{font-size:10.5px;color:#475569;white-space:pre-wrap;margin:4px 0}.wr-note small{font-size:9px;color:#94a3b8}.wr-dot{width:8px;height:8px;border-radius:50%;flex:none}
.admin-writing-list{display:flex;flex-direction:column;gap:7px}
.admin-writing-row{display:flex;align-items:flex-start;gap:8px;border:1px solid #e7edf5;border-radius:8px;padding:8px 10px;background:#fbfdff}
.admin-writing-main{min-width:0;flex:1}.admin-writing-main b{font-size:11px;color:#334155}.admin-writing-main small{display:block;font-size:9.5px;color:#94a3b8;margin:2px 0}.admin-writing-main p{font-size:10px;color:#64748b;white-space:pre-wrap;margin:0;max-height:42px;overflow:hidden}
@media(max-width:760px){.writing-review{grid-template-columns:1fr}.writing-review-side{max-height:none}}
.asg-wizard{display:flex;flex-direction:column;gap:12px}
.asg-mode{border:1px solid #e7edf5;border-radius:10px;background:#f8fbfd;padding:10px 12px}
.asg-mode>b{display:block;font-size:11px;color:#334155;margin-bottom:7px}
.asg-mode-opts{display:flex;gap:7px;flex-wrap:wrap}.asg-mode-btn{border:1px solid #dbe5ed;background:#fff;color:#475569;border-radius:8px;padding:8px 12px;font:12px inherit;cursor:pointer}
.asg-mode-btn.on{border-color:#0f766e;background:#ecfdf5;color:#0f766e;font-weight:700}
.asg-wizard-tip{font-size:10.5px;color:#94a3b8;line-height:1.6}
.asg-draft{border:1px solid #dbe5ed;border-radius:12px;background:#fff;padding:12px}
.asg-draft-head{display:flex;align-items:center;gap:8px;margin-bottom:9px}.asg-draft-head b{font-size:13px;color:#10233f}.asg-draft-head .btn{margin-left:auto}
.asg-fields{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.asg-fields label,.asg-desc-label{display:flex;flex-direction:column;gap:4px;font-size:10px;color:#64748b;min-width:0}
.asg-fields input,.asg-fields select,.asg-desc-label textarea{border:1px solid #dbe5ed;border-radius:7px;padding:6px 8px;font:11px inherit;background:#fff;min-width:0}
.asg-desc-label{margin-top:8px}.asg-desc-label textarea{resize:vertical}
.asg-students-head{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin:11px 0 5px;font-size:11px;color:#334155}.asg-students-head .muted{margin-right:auto}
.asg-students{display:flex;gap:5px 12px;flex-wrap:wrap;background:#f8fbfd;border:1px solid #eef2f7;border-radius:8px;padding:7px 9px;font-size:11px;color:#475569;max-height:90px;overflow:auto}
.asg-students label{display:inline-flex;align-items:center;gap:4px;cursor:pointer}
.asg-parts{margin-top:9px;border-top:1px dashed #eef2f7;padding-top:8px}.asg-parts-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:11px;color:#334155}.asg-parts-head .muted{font-size:9.5px}
.asg-part-chips{display:flex;gap:5px;flex-wrap:wrap;margin:6px 0}
.asg-part-chip{display:inline-block;border:1px solid #dbe5ed;background:#fbfdff;border-radius:6px;padding:3px 6px;font-size:10px;color:#35566d;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.asg-picker{display:flex;flex-direction:column;gap:8px}.asg-picker>#asgPickSearch{border:1px solid #dbe5ed;border-radius:7px;padding:7px 9px;font:11px inherit}
.asg-pick-list{max-height:56vh;overflow:auto;border:1px solid #eef2f7;border-radius:9px;background:#fbfdff}
.asg-pick-group[hidden]{display:none}.asg-pick-group{border-bottom:1px solid #eef2f7;padding:7px 10px}.asg-pick-head{display:flex;gap:8px;align-items:baseline;margin-bottom:4px}.asg-pick-head b{font-size:11px;color:#334155}.asg-pick-head span{font-size:9.5px;color:#94a3b8}
.asg-pick-row{display:flex;align-items:flex-start;gap:6px;font-size:10.5px;color:#475569;padding:3px 0;cursor:pointer}.asg-pick-row input{margin-top:2px;flex:none}
@media(max-width:760px){.asg-fields{grid-template-columns:1fr}}
.modal-box.asg-wizard-modal{width:min(920px,96vw)}
.modal-box.asg-picker-modal{width:min(760px,96vw)}
/* 讲解模式开关（题库总览） */
.btn.teach-toggle{background:#fff;border-color:#d8e3ef;color:#3b5f7d}
.btn.teach-toggle:hover{border-color:#1f9d6b;color:#177245}
.btn.teach-toggle.on{background:#e9f8f0;border-color:#1f9d6b;color:#177245;box-shadow:inset 0 0 0 1px rgba(31,157,107,.12)}

/* ---------- 题库直接选题布置作业 ---------- */
body.asg-selecting .admin-bank{padding-bottom:88px}
body.asg-selecting .admin-part,body.asg-selecting .admin-speak-card,body.asg-selecting .admin-test-head>a{cursor:pointer}
[data-pick-key]{position:relative}
[data-pick-key].picked{background:#ecfdf5!important;border-color:#0f766e!important;box-shadow:inset 0 0 0 1px #0f766e}
[data-pick-key].picked::after{content:"✓";position:absolute;top:3px;right:4px;width:15px;height:15px;border-radius:50%;background:#0f766e;color:#fff;font:700 9px/15px sans-serif;text-align:center;z-index:2}
.asg-cart{position:fixed;left:calc(var(--admin-side,244px) + 24px);right:24px;bottom:16px;z-index:45;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #b9e5d3;border-radius:13px;background:#f0fdf6;box-shadow:0 12px 40px rgba(15,84,58,.18)}
.asg-cart-info{display:flex;align-items:center;gap:9px;min-width:0;flex:1;flex-wrap:wrap}
.asg-cart-info>b{font-size:13px;color:#115e45;white-space:nowrap}
.asg-cart-info>span{font-size:10px;color:#3f7d66;white-space:nowrap}
.asg-cart-chips{display:flex;gap:4px;overflow:hidden;min-width:0;flex:1;max-width:55%}
.asg-cart-chip{display:inline-block;max-width:210px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:9.5px;color:#276749;background:#dcfce7;border:1px solid #bbf7d0;border-radius:999px;padding:2px 6px}
.asg-cart-chip.more{max-width:none;background:#fff;color:#64748b}
.asg-cart-actions{display:flex;gap:7px;flex:none;align-items:center}
.asg-config{display:flex;flex-direction:column;gap:11px}
.asg-config-picks{display:flex;flex-wrap:wrap;gap:5px;max-height:76px;overflow:auto;padding:7px 9px;border:1px solid #dcfce7;border-radius:9px;background:#f8fffb}
.asg-config-chip{font-size:9.5px;color:#166534;background:#dcfce7;border-radius:999px;padding:2px 7px;white-space:nowrap}
.asg-config-field>label{display:block;font-size:11px;color:#334155;margin-bottom:5px}
.asg-class-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;max-height:140px;overflow:auto;padding:7px;border:1px solid #e5eef6;border-radius:9px;background:#f8fbfd}
.asg-class-check{display:flex;align-items:center;gap:5px;padding:6px 7px;border:1px solid #e2e8f0;border-radius:7px;background:#fff;font-size:10.5px;color:#334155;cursor:pointer}
.asg-class-check:has(input:checked){border-color:#0f766e;background:#ecfdf5;color:#0f766e}
.asg-class-check span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.asg-class-check small{font-size:9px;color:#94a3b8;white-space:nowrap}
.asg-student-blocks{display:flex;flex-direction:column;gap:8px}
.asg-student-block{border:1px solid #e5eef6;border-radius:9px;background:#fff;padding:8px 10px}
.asg-student-block-head{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.asg-student-block-head b{font-size:11px;color:#10233f}.asg-student-block-head span{font-size:9.5px;color:#94a3b8;margin-left:6px}
.asg-student-block-head .btn{margin-left:auto}
.asg-student-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px 8px;max-height:112px;overflow:auto}
.asg-student-grid label{display:flex;align-items:center;gap:4px;font-size:10px;color:#475569;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.asg-config-fields{display:grid;grid-template-columns:1fr 190px;gap:8px 12px;border-top:1px solid #eef2f7;padding-top:10px}
.asg-config-fields label{display:flex;flex-direction:column;gap:4px;font-size:10px;color:#64748b}
.asg-config-fields input,.asg-config-fields textarea{border:1px solid #dbe5ed;border-radius:7px;padding:7px 8px;font:11px inherit;color:#10233f;outline:none}
.asg-config-fields textarea{resize:vertical;min-height:44px}
.asg-config-fields .wide{grid-column:1/-1}
.modal-box.asg-config-modal{width:min(860px,96vw)}
@media(max-width:760px){.asg-cart{left:12px;right:12px;bottom:10px;align-items:stretch;flex-direction:column}.asg-cart-chips{max-width:none}.asg-cart-actions{justify-content:flex-end}.asg-class-grid{grid-template-columns:1fr 1fr}.asg-student-grid{grid-template-columns:1fr 1fr}.asg-config-fields{grid-template-columns:1fr}.asg-config-fields .wide{grid-column:auto}}
body:has(.asg-config) .asg-cart{display:none}

/* ---------- 总览：题库 / 班级 / 学生 / 作业入口与三张目录 ---------- */
.ov-jump-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:12px}
.ov-jump{display:flex;align-items:center;gap:9px;min-width:0;text-align:left;border:1px solid var(--line);border-radius:12px;background:#fff;padding:11px 12px;cursor:pointer;font:inherit;color:inherit;transition:.15s}
.ov-jump:hover{border-color:#b8d8e8;box-shadow:0 7px 20px rgba(15,23,42,.07);transform:translateY(-1px)}
.ov-jump-ico{width:33px;height:33px;border-radius:10px;background:#ecfdf5;color:#0f766e;display:grid;place-items:center;font-size:15px;flex:none}
.ov-jump-main{min-width:0;flex:1}.ov-jump-main b{display:block;font-size:12px;color:#10233f;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ov-jump-main small{display:block;font-size:9.5px;color:#94a3b8;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ov-jump-n{font-size:15px;font-weight:720;color:#0f766e;letter-spacing:-.03em;flex:none}.ov-jump-arrow{color:#94a3b8;font-size:13px;flex:none}
.ov-directory{display:flex;flex-direction:column;gap:12px}
.ov-card{overflow:hidden}
.ov-card-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:11px 15px;border-bottom:1px solid var(--line)}
.ov-card-head>div:first-child{display:flex;align-items:baseline;gap:8px;min-width:150px}.ov-card-head h3{font-size:13px;margin:0;font-weight:680}.ov-card-head .muted{font-size:10px}
.ov-filters{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-left:auto}
.ov-filters input,.ov-filters select{height:29px;font-size:10.5px;border:1px solid #dbe5ed;border-radius:7px;background:#fff;padding:0 8px;outline:none}
.ov-filters input{width:190px}.ov-filters select{max-width:150px}
.ov-filters input:focus,.ov-filters select:focus{border-color:#5eead4;box-shadow:0 0 0 3px rgba(45,212,191,.12)}
.ov-table-wrap{overflow:auto}
.ov-table th{padding:9px 15px;font-size:9.5px}.ov-table td{padding:9px 15px;font-size:10.8px}
.ov-table td .pill{margin:2px 2px 2px 0}
.ov-bottom{margin-top:12px}
body.skin-dark .ov-jump,body.skin-dark .ov-filters input,body.skin-dark .ov-filters select{background:var(--sk-card);border-color:var(--sk-line);color:var(--sk-ink-2)}
body.skin-dark .ov-jump-main b{color:var(--sk-ink)}
body.skin-dark .ov-card-head{border-color:var(--sk-line)}
@media(max-width:1150px){.ov-jump-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.ov-jump-grid{grid-template-columns:1fr}.ov-filters{margin-left:0;width:100%}.ov-filters input{width:100%;flex:1 1 130px}.ov-filters select{flex:1 1 110px;max-width:none}.ov-card-head>div:first-child{width:100%}}

/* ---------- 用户与权限：班级 / 师生 / 作业反馈关系 ---------- */
.user-table td{vertical-align:top}
.user-rel{display:flex;flex-direction:column;gap:5px;min-width:190px;max-width:390px}
.user-class-line{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.user-class-line .pill{font-size:10px;padding:2px 7px}
.user-class-pill{border:1px solid #cce8e0;background:#f3fbf8;color:#177245;cursor:pointer;font:inherit}
.user-class-pill:hover{background:#e3f7ef;border-color:#81d3b9}
.user-teacher-line{font-size:10.5px;line-height:1.55;color:#64748b}
.user-missing{color:#b45309;font-size:10.5px}
.user-detail-toggle{font-size:10.5px;color:#0f766e;background:none;border:0;padding:0;cursor:pointer;text-align:left}
.user-detail-toggle:hover{text-decoration:underline}
.user-fold{margin-top:2px}
.user-fold summary{font-size:10.5px;color:#0f766e;cursor:pointer;line-height:1.6}
.user-fold summary:hover{text-decoration:underline}
.user-class-blocks{display:flex;flex-direction:column;gap:6px;margin-top:5px}
.user-class-block{border:1px solid #e5eef6;border-radius:8px;background:#fbfdff;padding:7px 8px}
.user-class-block-h{display:flex;align-items:center;gap:5px;flex-wrap:wrap;font-size:10.5px;color:#475569}
.user-class-block-h b{font-size:11px;color:#10233f}
.user-class-block-h span{font-size:9.5px;color:#94a3b8}
.mini-link{border:0;background:none;padding:0 2px;color:#0f766e;font:10px inherit;cursor:pointer}
.mini-link:hover{text-decoration:underline}
.user-student-chips{display:flex;gap:4px;flex-wrap:wrap;margin-top:5px}
.user-student-chip{border:1px solid #dbe5ed;border-radius:7px;background:#fff;padding:4px 7px;color:#334155;font:10px inherit;cursor:pointer;text-align:left;line-height:1.35}
.user-student-chip:hover{border-color:#81d3b9;background:#f3fbf8}
.user-student-chip small{display:block;color:#94a3b8;font-size:9px;margin-top:1px}
.user-counts{display:flex;flex-direction:column;align-items:flex-start;gap:3px}
.user-count-btn{font:10px inherit;border:1px solid #dbe5ed;border-radius:6px;background:#fff;color:#0f766e;padding:2px 6px;cursor:pointer}
.user-count-btn:hover{background:#f3fbf8;border-color:#81d3b9}
.user-count-static{font-size:10px;color:#64748b}
.user-staff-group em{font-style:normal;color:#475569;font-weight:600;margin-right:2px}

body.skinned{--admin-scale:var(--sk-scale,1.1)}

/* ===== 口语批改 ===== */
.spk-admin-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:16px}
.spk-admin-head h1{font-size:26px;margin:0;letter-spacing:-.03em}
.spk-admin-head .sub{font-size:11px;color:#94a3b8;line-height:1.65;margin:5px 0 0;max-width:760px}
.spk-admin-stats{display:flex;gap:10px;flex:none}
.spk-admin-stats>div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 13px;min-width:64px;text-align:center}
.spk-admin-stats b{display:block;font-size:20px;letter-spacing:-.03em;color:#10233f}
.spk-admin-stats span{display:block;font-size:9px;color:#94a3b8;margin-top:2px}
.spk-admin-filters{display:flex;align-items:center;gap:7px;flex-wrap:wrap;padding:11px 13px;margin-bottom:13px}
.spk-admin-filters select,.spk-admin-filters input{height:29px;font-size:11px}
.spk-admin-filters input[type="search"]{min-width:180px;flex:1}
.spk-admin-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(285px,1fr));gap:12px}
.spk-admin-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 15px;box-shadow:0 2px 6px rgba(15,23,42,.025);display:flex;flex-direction:column;gap:8px}
.spk-admin-card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}
.spk-admin-card-top b{display:block;font-size:13px;color:#10233f}
.spk-admin-card-top .tiny{display:block;margin-top:2px}
.spk-admin-meta{font-size:10.5px;color:#64748b;line-height:1.55;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.spk-admin-progress{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:#94a3b8;border-top:1px solid #eef2f7;padding-top:7px}
.spk-admin-card .btn{align-self:flex-start}
.speaking-review-modal{width:min(1100px,96vw)!important;max-height:92vh}
.speaking-review-modal .modal-b{padding:0!important}
.spk-review{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:460px;max-height:72vh}
.spk-review-side{border-right:1px solid #eef2f7;background:#fbfdff;padding:14px 10px;overflow:auto}
.spk-review-who{padding:0 7px 10px;border-bottom:1px solid #eef2f7;display:flex;flex-direction:column;gap:2px}
.spk-review-who b{font-size:13px;color:#10233f}.spk-review-who span{font-size:10px;color:#64748b}
.spk-review-list{display:flex;flex-direction:column;gap:4px;margin-top:9px}
.spk-review-item{display:flex;align-items:center;justify-content:space-between;gap:6px;border:1px solid transparent;background:transparent;color:#475569;border-radius:7px;padding:7px 8px;font-size:11px;cursor:pointer;text-align:left}
.spk-review-item:hover{background:#f1f7ff}.spk-review-item.on{background:#eaf3ff;border-color:#bfd7f5;color:#1d4ed8;font-weight:650}
.spk-review-item i{font-style:normal;font-size:8.5px;color:#94a3b8;white-space:nowrap}
.spk-review-item.done i{color:#059669}
.spk-review-main{padding:16px 18px;overflow:auto}
.spk-review-qhead{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;border-bottom:1px solid #eef2f7;padding-bottom:9px}
.spk-review-qhead>div{display:flex;align-items:center;gap:7px;flex-wrap:wrap}.spk-review-qhead b{font-size:14px;color:#10233f}
.spk-review-question{font-size:17px;line-height:1.65;color:#10233f;margin:14px 0 6px;white-space:pre-wrap}
.spk-review-points{margin:4px 0 12px 20px;color:#475569;font-size:13px;line-height:1.75}
.spk-review-audio{margin:14px 0;padding:10px 12px;border:1px solid #e2eaf3;background:#f8fbff;border-radius:9px}
.spk-review-audio audio{width:100%;height:36px;display:block}
.spk-review-fields{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:10px 0}
.spk-review-fields label{font-size:11px;color:#475569;font-weight:600;display:flex;align-items:center;gap:7px}
.spk-review-fields input{width:80px;height:30px;font-size:12px}
.spk-review-fb{display:block;font-size:11px;color:#475569;font-weight:600;margin-top:8px}
.spk-review-fb textarea{display:block;width:100%;margin-top:5px;height:86px;font-size:12px;line-height:1.6;padding:8px 9px}
.spk-review-actions{display:flex;align-items:center;gap:8px;margin-top:12px}
@media(max-width:900px){
  .spk-admin-stats{display:none}.spk-admin-head{display:block}
  .spk-review{grid-template-columns:1fr;max-height:74vh}.spk-review-side{border-right:0;border-bottom:1px solid #eef2f7;max-height:150px}
  .spk-review-list{display:flex;flex-direction:row;overflow:auto}.spk-review-item{flex:none}
}

/* ===== 班级分类 ===== */
.class-type-group{margin-top:16px}
.class-type-group:first-of-type{margin-top:0}
.class-type-head{display:flex;align-items:center;gap:8px;margin:0 0 8px;padding:0 2px}
.class-type-head b{font-size:13px;color:#10233f}
.class-type-head span{font-size:10px;color:#94a3b8}
.class-type-pill{display:inline-flex;align-items:center;border-radius:999px;background:#eef4ff;color:#1d4ed8;font-size:9px;font-weight:700;line-height:1;padding:4px 7px;margin-bottom:5px;letter-spacing:.02em}
.class-card[data-class-type="强化班"] .class-type-pill{background:#f3efff;color:#6d28d9}
.class-card[data-class-type="直通车"] .class-type-pill{background:#fff4e6;color:#c2410c}
.class-card[data-class-type="一对一"] .class-type-pill{background:#ecfdf5;color:#047857}
.class-card[data-class-type="预备班"] .class-type-pill{background:#f1f5f9;color:#475569}

/* ===== 单词库分类 / 单词库用时 ===== */
.vocab-lib-strip{margin:0 0 14px;padding:12px 14px;border:1px solid #e7eef7;border-radius:11px;background:#fbfdff}
.vocab-lib-strip-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:9px}
.vocab-lib-strip-head b{display:block;font-size:12px;color:#10233f}.vocab-lib-strip-head span{display:block;font-size:10px;color:#94a3b8;margin-top:2px}
.vocab-lib-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:7px}
.vocab-lib-card{border:1px solid #e2eaf3;background:#fff;border-radius:9px;padding:8px 10px;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:3px;color:#475569}
.vocab-lib-card:hover{border-color:#93c5fd;background:#f8fbff}
.vocab-lib-card.on{border-color:#60a5fa;background:#eff6ff;box-shadow:0 0 0 2px rgba(96,165,250,.12)}
.vocab-lib-card b{font-size:11px;color:#10233f;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vocab-lib-card span{font-size:9.5px;color:#94a3b8;line-height:1.4}.vocab-lib-card strong{font-size:11px;color:#0f766e;font-weight:700}
.vocab-lib-card.on strong{color:#1d4ed8}
@supports not (font-size:9.5px){.vocab-lib-card span{font-size:10px}}

/* ---------- mobile foundation (Chrome/Safari/Edge/Firefox) ---------- */
html,body{max-width:100%;overflow-x:hidden}
@media(max-width:900px){
  :root{--admin-scale:1}
  .app{width:100%!important;max-width:100vw;min-height:100vh;zoom:1;grid-template-columns:1fr;align-content:start}
  .side{position:static;align-self:start;width:100%;height:auto;padding:13px 14px 8px;gap:2px}
  .side .brand{padding:0 2px 10px}
  .side .brand .mark{width:32px;height:32px;border-radius:9px}
  .side .brand b{font-size:13px}
  .side .brand span{font-size:7px}
  .side-label{display:none}
  nav{flex-direction:row;overflow-x:auto;overflow-y:hidden;gap:3px;padding:2px 0 6px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  nav::-webkit-scrollbar{display:none}
  .navbtn{flex:0 0 auto;height:33px;padding:0 9px;font-size:11.5px;gap:5px}
  .navbtn span{width:13px}
  .side-bottom{display:flex;align-items:center;gap:8px;margin-top:0;padding:7px 0 0;border-top:1px solid rgba(255,255,255,.09)}
  .side-bottom .side-practice{width:auto;margin:0;flex:0 0 auto;height:28px}
  .side-bottom .mini{display:none}
  .side-bottom .logout{width:auto;margin-left:auto;padding:6px 12px;font-size:11px}
  .side-resizer{display:none}
  .main{width:100%;min-width:0;padding:18px 13px 54px}
  .top{margin-bottom:16px;gap:10px;align-items:flex-start}
  .top>div:first-child{min-width:0;flex:1}
  .top h1{font-size:22px;white-space:normal;line-height:1.25}
  .crumb{font-size:9px}
  .top .who{font-size:10.5px;gap:5px;margin-left:auto;white-space:normal;justify-content:flex-end}
  .top .who small{font-size:9px;padding:2px 5px}
  .avatar{width:27px;height:27px;font-size:10px}
  .view{max-width:100%;min-width:0}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:8px}
  .stat{padding:12px 13px}
  .stat .v{font-size:22px}
  .card{border-radius:11px;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .card-h{padding:11px 12px;gap:7px}
  .card-h>div:first-child{min-width:0}
  .card-h .tools{margin-left:auto;gap:5px;justify-content:flex-end;max-width:100%}
  .card-h .tools .btn,.card-h .tools select{height:28px;font-size:10.5px}
  .filters{padding:9px 11px;gap:5px}
  .filters select,.filters input{height:28px;font-size:10.5px;max-width:100%}
  .card>table{min-width:0!important;width:100%;font-size:10.5px}
  th{padding:8px 9px;font-size:9px}
  td{padding:8px 9px;font-size:10.5px}
  .row-actions{flex-wrap:wrap;gap:3px}
  .btn.sm{height:24px;padding:0 7px;font-size:9.5px}
  .ov-jump-grid{grid-template-columns:1fr!important}
  .ov-filters{width:100%;margin-left:0;flex-wrap:wrap}
  .ov-filters input,.ov-filters select{flex:1 1 120px;max-width:none;min-width:0}
  .ov-card-head>div:first-child{width:100%}
  .class-grid{grid-template-columns:1fr!important;padding:11px;gap:8px}
  .class-type-head{padding:10px 11px!important}
  .modal{padding:8px;align-items:flex-end}
  .modal-box{width:100%!important;max-height:94vh;border-radius:13px}
  .modal-h{padding:14px 15px}.modal-b{padding:14px 15px}.modal-f{padding:11px 15px 14px}
  .form-grid{grid-template-columns:1fr!important}
  .target-row{grid-template-columns:1fr 58px auto!important}
  .target-row textarea{grid-column:1/-1}
  .asg-fields,.asg-config-fields{grid-template-columns:1fr!important}
  .asg-class-grid{grid-template-columns:1fr 1fr!important}
  .asg-student-grid{grid-template-columns:1fr 1fr!important}
  .asg-cart{left:8px;right:8px;bottom:8px;padding:9px 10px;flex-direction:column;align-items:stretch;gap:6px}
  .asg-cart-actions{justify-content:flex-end}
  .writing-review{grid-template-columns:1fr!important}
  .writing-review-side{max-height:none}
  .student-stat-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .student-stat-grid b{font-size:16px}
  .student-stat-grid span{font-size:9px}
  .vocab-detail-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .spk-admin-grid{grid-template-columns:1fr}
  .spk-review{grid-template-columns:1fr!important;max-height:none;min-height:0}
  .spk-review-side{max-height:none}
  .skin-fab{right:12px;bottom:12px;width:45px;height:45px}
  .skin-drawer{right:6px;bottom:65px;width:calc(100vw - 12px);height:calc(100vh - 78px)}
}
@media(max-width:520px){
  .main{padding:13px 10px 48px}
  .grid{grid-template-columns:1fr!important}
  .ov-jump{padding:10px 11px}
  .ov-jump-main b{font-size:11px}
  .ov-jump-main small{font-size:9px}
  .student-stat-grid{grid-template-columns:1fr 1fr}
  .student-stat-grid div:last-child{grid-column:1/-1}
  .side-bottom .side-practice{padding:0 8px;font-size:10.5px}
  .top .who #whoName{max-width:74px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .top .who #whoRole{display:none}
  .card-h .tools{width:100%;justify-content:flex-start;margin-left:0}
  .card-h .tools .btn,.card-h .tools select{flex:1 1 auto}
  .filters .spacer{display:none}
  .filters select,.filters input{flex:1 1 100px;width:auto!important}
}
@media(max-width:900px){
  .app{grid-template-columns:minmax(0,1fr)!important}
  .main{width:100%;max-width:100vw;overflow-x:hidden}
  .view,.tch-hero,.ov-jump-grid,.card-head,.ov-card{width:100%;max-width:100%;min-width:0}
  .tch-hero,.ov-card{overflow:hidden}
}
/* Safari / Firefox fallbacks */
@supports not (zoom: 1){
  .app{width:100%!important}
  .side{height:auto!important;min-height:0!important}
}
@media(max-width:560px){
  .view table{table-layout:auto;width:100%;font-size:9.5px}
  .view th,.view td{white-space:normal!important;overflow-wrap:anywhere;word-break:break-word;padding:6px 5px;font-size:9.5px}
  .view th{letter-spacing:0}
  .row-actions{justify-content:flex-start}
  /* 用户与权限在手机上改成卡片行，避免 6 列挤压 */
  .user-table,.user-table tbody{display:block;width:100%}
  .user-table thead{display:none}
  .user-table tr{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:5px 9px;padding:11px 12px;border-bottom:1px solid #eef2f7}
  .user-table td{display:block;border:0;padding:0;font-size:10.5px;min-width:0}
  .user-table td:nth-child(1){grid-column:1/-1}
  .user-table td:nth-child(2){grid-column:1;grid-row:2}
  .user-table td:nth-child(3){grid-column:1/-1;grid-row:3}
  .user-table td:nth-child(4){grid-column:2;grid-row:2;text-align:right}
  .user-table td:nth-child(5){grid-column:1/-1;grid-row:4}
  .user-table td:nth-child(6){grid-column:1/-1;grid-row:5;margin-top:2px}
  .user-table td:nth-child(6) .row-actions{justify-content:flex-start;flex-wrap:wrap}
  .user-table td b{font-size:12px}
  .user-table .pill{font-size:9px;padding:2px 6px}
  .user-table td:nth-child(4) .pill{display:inline-block}
}

/* 真题作业 */
.real-asg-form{display:flex;flex-direction:column;gap:12px}
.real-asg-row{display:grid;grid-template-columns:92px 1fr;align-items:center;gap:10px}
.real-asg-row>b,.real-asg-field>span{font-size:12px;color:#547079;font-weight:700}
.real-asg-toggle{display:flex;gap:6px;flex-wrap:wrap}
.real-asg-toggle button{padding:7px 13px;border:1px solid #d7e3e6;border-radius:999px;background:#fff;color:#48636b;font:inherit;cursor:pointer}
.real-asg-toggle button.on{background:#0f766e;border-color:#0f766e;color:#fff;font-weight:700}
.real-asg-field{display:flex;flex-direction:column;gap:5px}
.real-asg-field select,.real-asg-field input{width:100%;padding:8px 10px;border:1px solid #d7e3e6;border-radius:9px;background:#fff;font:inherit;color:#1f2937}
.real-asg-suite{display:flex;flex-direction:column;gap:8px}
.real-asg-pick{display:grid;grid-template-columns:40px 1fr;align-items:center;gap:8px}
.real-asg-pick b{color:#0f766e;font-size:12px}
.real-asg-classes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}
.real-asg-class{display:flex;align-items:center;gap:6px;padding:7px 9px;border:1px solid #dce8ea;border-radius:9px;background:#fbfefe;font-size:12px}
.real-asg-class small{margin-left:auto;color:#8aa0a6}
.real-asg-modal .modal-box{max-width:720px}
@media(max-width:600px){.real-asg-row{grid-template-columns:1fr}.real-asg-classes{grid-template-columns:1fr}}
.real-asg-class input[type="checkbox"]{width:16px!important;height:16px!important;min-width:16px;margin:0;accent-color:#0f766e}