:root{
  --primary:#36C9A7; --primary-d:#1FA98B; --primary-l:#E8F8F2;
  --accent:#FFD166; --bg:#F1FAF7; --card:#fff; --text:#1f2937; --muted:#6b7280;
  --line:#e5ece9; --shadow:0 6px 20px rgba(31,169,139,.10);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:14px}
.top{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 26px;background:linear-gradient(135deg,var(--primary),var(--primary-d));color:#fff;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:42px;height:42px;border-radius:12px;background:#fff;color:var(--primary-d);font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center}
.brand h1{margin:0;font-size:18px}
.brand .sub{margin:2px 0 0;font-size:12px;opacity:.85}
.stats{display:flex;gap:10px;flex-wrap:wrap}
.stat{background:rgba(255,255,255,.16);border-radius:12px;padding:8px 14px;text-align:center;min-width:64px}
.stat b{display:block;font-size:18px}
.stat span{font-size:12px;opacity:.9}

.tabs{display:flex;gap:6px;padding:10px 26px 0;background:var(--bg)}
.tab{border:none;background:transparent;padding:10px 16px;border-radius:12px 12px 0 0;cursor:pointer;color:var(--muted);font-size:14px;font-weight:600}
.tab.on{background:var(--card);color:var(--primary-d);box-shadow:var(--shadow)}

main{max-width:980px;margin:0 auto;padding:18px 26px 60px}
.pane{display:none}
.pane.on{display:block}

.toolbar{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.toolbar input{flex:1;max-width:320px;padding:10px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;font-size:14px}
.hint{color:var(--muted);font-size:13px}

.card{background:var(--card);border-radius:16px;padding:18px;box-shadow:var(--shadow);margin-bottom:16px}
.card h3{margin:0 0 12px;font-size:16px;color:var(--primary-d)}

.school-list{display:flex;flex-direction:column;gap:10px}
.srow{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px}
.slogo{width:46px;height:46px;border-radius:10px;object-fit:cover;background:var(--primary-l)}
.sinfo{flex:1;min-width:0}
.sname{font-weight:700}
.badge{display:inline-block;font-size:11px;font-weight:600;color:var(--primary-d);background:var(--primary-l);border-radius:8px;padding:1px 8px;margin-left:6px}
.smeta{color:var(--muted);font-size:12px;margin:3px 0}
.sintro{color:#374151;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.row{display:flex;align-items:center;gap:10px;margin:10px 0}
.row label{width:48px;color:var(--muted);font-size:13px}
.row select{flex:1;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:#fff}
.radio{width:auto!important;color:var(--text)!important;display:inline-flex;align-items:center;gap:4px}
.drop{border:2px dashed var(--primary);border-radius:14px;padding:26px;text-align:center;color:var(--muted);background:var(--primary-l);cursor:pointer}
.drop.over{background:#d6f3ea}
.preview{margin:10px 0}
.btn{border:none;border-radius:10px;padding:9px 16px;font-size:13px;font-weight:600;cursor:pointer}
.btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary-d));color:#fff}
.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--text)}
.btn.mini{padding:6px 12px}
.msg{color:var(--primary-d);font-size:13px;min-height:18px}

.sub{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-bottom:12px}
.sub h4{margin:0 0 8px;font-size:14px}
.cnt{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
.qlist{display:flex;flex-direction:column;gap:6px}
.q{display:flex;justify-content:space-between;gap:12px;padding:8px 10px;border-radius:10px;background:var(--bg);cursor:pointer}
.q:hover{background:var(--primary-l)}
.qt{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.qa{color:var(--primary-d);font-weight:700;flex-shrink:0}

.log{background:#0f172a;color:#d1fae5;padding:14px;border-radius:12px;font-size:12px;line-height:1.6;max-height:420px;overflow:auto;white-space:pre-wrap;margin-top:12px}

.modal{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;align-items:center;justify-content:center;padding:20px;z-index:50}
.modal.show{display:flex}
.modal-box{background:#fff;border-radius:16px;width:100%;max-width:520px;max-height:90vh;overflow:auto}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:16px 18px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0;font-size:16px;color:var(--primary-d)}
.x{border:none;background:none;font-size:22px;cursor:pointer;color:var(--muted);line-height:1}
.modal-body{padding:16px 18px}
.modal-body .lb{display:block;color:var(--muted);font-size:13px;margin:10px 0 6px}
.modal-body textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:10px;font-size:14px;resize:vertical;font-family:inherit}
.thumb{width:54px;height:54px;border-radius:10px;object-fit:cover;background:var(--primary-l)}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:14px 18px;border-top:1px solid var(--line)}

.toast{position:fixed;left:50%;bottom:40px;transform:translateX(-50%);background:#0f172a;color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;z-index:99;box-shadow:var(--shadow)}

.row.center{justify-content:center;gap:14px;margin-top:8px}
.row.wrap{flex-wrap:wrap}
.row.wrap .lb{width:auto;font-weight:600;color:var(--text)}
.row.wrap input[type=file]{max-width:280px}
.link{color:var(--primary-d);font-size:13px;text-decoration:underline;cursor:pointer}
.import-card .row{margin:12px 0}
.import-card textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:10px;font-size:13px;font-family:monospace;resize:vertical}

.bcard{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-bottom:12px}
.bpreview{width:150px;height:84px;border-radius:10px;flex-shrink:0;overflow:hidden;display:flex;align-items:center;justify-content:center}
.bpreview img{width:100%;height:100%;object-fit:cover}
.bpreview .ph{color:#fff;font-size:12px;opacity:.92}
.bfields{flex:1;display:grid;grid-template-columns:62px 1fr;gap:8px 10px;align-items:center}
.bfields label{color:var(--muted);font-size:12px}
.bfields .bi{border:1px solid var(--line);border-radius:8px;padding:6px 9px;font-size:13px;width:100%}
.bfields .bfile{grid-column:1/3;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.bfields .ok{color:var(--primary-d);font-size:12px}
.bfields .bi-del{justify-self:start}

/* 站点设置：Logo 预览 */
.logo-prev{width:96px;height:96px;border-radius:18px;background:linear-gradient(135deg,#4F6EF7,#7C3AED);display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:0 6px 18px rgba(79,110,247,.25)}
.logo-prev img{width:100%;height:100%;object-fit:cover}
.logo-txt{color:#fff;font-weight:800;font-size:20px;text-align:center;line-height:1.1;padding:6px}

/* ===== v2 新增：院校增删改 / seed 题库 / 视频管理 ===== */
.btn.danger{background:#fee2e2;border:1px solid #fecaca;color:#b91c1c}
.btn.danger:hover{background:#fecaca}
.wide{flex:1;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:14px}
.row input.wide{max-width:none}
.flex1{flex:1}
.chchips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-block;font-size:12px;color:var(--primary-d);background:var(--primary-l);border-radius:8px;padding:3px 10px;cursor:pointer}
.chip:hover{background:#d6f3ea}
.toolbar select{padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:13px;max-width:240px}
#seedByType{margin:0 0 12px}
#seedByType .badge{background:var(--primary-l);color:var(--primary-d);font-size:12px;font-weight:600;border-radius:8px;padding:2px 10px;margin-right:6px}
.msg{white-space:pre-wrap}
.pagerbar{gap:8px;padding:10px 0}
.pagerbar button.pg{padding:4px 10px;border-radius:6px;font-size:13px}
.pagerbar button.pg.on{background:#4f7cff;color:#fff;border-color:#4f7cff}
.pagerbar button.pg[disabled]{opacity:.5;cursor:not-allowed}
.qcount{font-size:24px;font-weight:700;color:#4f7cff;margin-top:6px}
.tbl .tag{padding:2px 8px;border-radius:10px;font-size:12px;display:inline-block}
.tbl .tag.ok{background:#e8f7ee;color:#0a9e42}
.tbl .tag.bad{background:#fef0f0;color:#d93025}
.a-stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:10px}
.a-stats-row .st{background:var(--bg-card);padding:12px;border-radius:10px}
.a-stats-row .st .n{font-size:22px;font-weight:700;color:#4f7cff}
.a-stats-row .st .l{color:var(--muted);font-size:12px}
.a-avatar{width:32px;height:32px;border-radius:50%;background:#eee}
/* A3 院校批量操作条 */
.bulkbar{gap:10px;align-items:center;flex-wrap:wrap;padding:8px 0;border-top:1px dashed var(--line);margin-top:4px}
.bulkbar label{font-size:13px;color:var(--muted)}
.bulkbar select{padding:6px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:13px}
.srow .schk{width:18px;height:18px;flex:0 0 auto;align-self:center}
/* A2 院校弹窗内联上传 */
.modal .row .thumb{width:64px;height:64px;border-radius:10px;object-fit:cover;background:#f0f0f0;margin-right:8px;vertical-align:middle}
.modal .row input[type=file]{font-size:12px;max-width:200px}
/* A4 图片画廊 */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin-top:8px}
.gcard{border:1px solid var(--line);border-radius:12px;padding:8px;background:var(--card);text-align:center}
.gcard .gimgs{display:flex;gap:6px;justify-content:center;min-height:54px;align-items:center}
.gcard .gimgs img{width:52px;height:52px;border-radius:8px;object-fit:cover;background:#f0f0f0}
.gcard .gname{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.3}
/* B1 题目ID可点击 */
.qid-link{color:#1f6fd6;cursor:pointer;text-decoration:underline dotted;font-family:monospace;font-size:12px}
.qid-link:hover{color:#0a4fb0}