:root{font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:#172033;background:#f5f8fc;--blue:#2457e6;--ink:#172033;--muted:#6b7890;--line:#dfe6f1;--bg:#f5f8fc;--card:#fff;--danger:#c72c41;--ok:#177a52}
*{box-sizing:border-box}body{margin:0;background:var(--bg)}button,input,select,textarea{font:inherit}.hidden{display:none!important}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 15% 10%,#e7f1ff 0,transparent 35%),radial-gradient(circle at 90% 90%,#eef2ff 0,transparent 32%),#f7faff}.login-card{width:min(440px,100%);background:#fff;border:1px solid #e3eaf5;border-radius:24px;padding:34px;box-shadow:0 22px 60px rgba(40,72,130,.12)}.brand{display:flex;gap:12px;align-items:center;margin-bottom:30px}.brand.compact{margin:0;padding:24px 18px}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:linear-gradient(145deg,#3167f1,#173bb3);color:white;font-weight:800}.brand b{display:block;font-size:17px}.brand small{display:block;color:var(--muted);margin-top:3px}.login-card h1{font-size:28px;margin:0 0 8px}.muted{color:var(--muted)}label{display:block;font-size:13px;color:#536078;margin:15px 0 6px}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff;color:var(--ink);outline:none}input:focus,select:focus,textarea:focus{border-color:#7d9cf4;box-shadow:0 0 0 3px #edf2ff}button{border:0;border-radius:10px;padding:9px 14px;cursor:pointer}.primary{background:var(--blue);color:#fff}.ghost{background:#f1f4f9;color:#35435d}.danger{background:#fff1f2;color:var(--danger)}.wide{width:100%}.security-note{font-size:12px;line-height:1.6;color:#6d7890;background:#f7f9fc;padding:11px;border-radius:10px;margin-top:18px}.error{color:var(--danger);font-size:13px;margin-top:8px}.app{display:grid;grid-template-columns:232px 1fr;min-height:100vh}aside{position:sticky;top:0;height:100vh;background:#111b2f;color:#dbe5f7;display:flex;flex-direction:column}aside .brand small{color:#91a1bc}nav{padding:5px 10px;overflow:auto;flex:1}nav button{display:flex;width:100%;margin:2px 0;background:transparent;color:#b9c7db;text-align:left;padding:10px 12px;gap:10px}nav button.active,nav button:hover{background:#1d2c47;color:#fff}.aside-bottom{padding:14px}main{min-width:0}header{height:80px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:5}header h2{margin:0;font-size:21px}header p{margin:4px 0 0;color:var(--muted);font-size:13px}.header-user{display:flex;gap:10px;align-items:center}.badge{font-size:12px;padding:4px 8px;background:#edf2ff;color:#3256b7;border-radius:99px}.page{padding:24px 28px 50px}.grid{display:grid;gap:16px}.cards4{grid-template-columns:repeat(4,minmax(0,1fr))}.cards3{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.kpi strong{display:block;font-size:28px;margin-top:8px}.kpi small{color:var(--muted)}.section-title{display:flex;align-items:center;justify-content:space-between;margin:28px 0 12px}.section-title h3{margin:0}.toolbar{display:flex;gap:8px;flex-wrap:wrap}.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:14px}table{width:100%;border-collapse:collapse;min-width:760px}th,td{padding:11px 12px;border-bottom:1px solid #edf0f5;text-align:left;font-size:13px}th{background:#f8fafc;color:#61708a;font-weight:600;position:sticky;top:0}.status{display:inline-block;padding:3px 7px;border-radius:7px;background:#f1f4f8;font-size:12px}.status.ok{background:#eaf8f1;color:var(--ok)}.status.warn{background:#fff5df;color:#986b05}.row-actions{display:flex;gap:5px}.row-actions button{padding:5px 8px;font-size:12px}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 14px}.form-grid label{margin:0}.form-grid .span2{grid-column:span 2}.form-grid .span3{grid-column:1/-1}.actions{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}.empty{padding:28px;text-align:center;color:var(--muted)}.schedule-board{display:grid;grid-template-columns:120px repeat(5,1fr);gap:8px;min-width:900px}.schedule-board .head{font-size:12px;color:var(--muted);padding:8px}.slot{min-height:84px;border:1px dashed #ccd6e5;border-radius:12px;padding:6px;background:#fbfcfe}.slot.over{border-color:var(--blue);background:#eef3ff}.session-card{border:1px solid #cdd9f2;background:#fff;border-radius:9px;padding:8px;margin:3px 0;font-size:12px;cursor:grab;box-shadow:0 3px 10px rgba(41,67,116,.07)}.session-card b{display:block;margin-bottom:3px}.session-card small{color:var(--muted)}.split{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px}.roster-row{display:grid;grid-template-columns:1fr 130px 90px;gap:8px;align-items:center;padding:8px 0;border-bottom:1px solid #edf0f5}.money{font-variant-numeric:tabular-nums}.toast{position:fixed;right:22px;bottom:22px;background:#172033;color:white;border-radius:10px;padding:12px 16px;z-index:99;box-shadow:0 12px 35px rgba(0,0,0,.2)}dialog{border:0;border-radius:16px;padding:24px;width:min(430px,90vw);box-shadow:0 30px 80px rgba(0,0,0,.2)}dialog::backdrop{background:#17203388}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.dropzone{border:1px dashed var(--line);padding:22px;text-align:center;border-radius:12px;color:var(--muted)}@media(max-width:1050px){.cards4{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:1fr 1fr}.split{grid-template-columns:1fr}}@media(max-width:760px){.app{grid-template-columns:1fr}aside{position:relative;height:auto}nav{display:flex;overflow:auto}nav button{width:auto;white-space:nowrap}.aside-bottom{display:none}header{top:0;padding:0 15px}.page{padding:15px}.cards4,.cards3{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.form-grid .span2{grid-column:auto}.header-user #userLabel{display:none}}
.renewal-actions{display:grid;gap:16px}.action-panel{padding:0;overflow:hidden}.action-panel>summary{list-style:none;cursor:pointer;padding:18px;display:flex;justify-content:space-between;gap:18px;align-items:center}.action-panel>summary::-webkit-details-marker{display:none}.action-panel>summary span{color:var(--muted);font-size:13px}.renewal-form{border-top:1px solid var(--line);padding:18px}.student-pick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;max-height:280px;overflow:auto;border:1px solid var(--line);border-radius:12px;padding:10px;background:#fbfcfe}.student-pick{display:flex;gap:9px;align-items:flex-start;margin:0;padding:9px;border:1px solid #e8edf5;border-radius:10px;background:#fff;cursor:pointer}.student-pick input{width:auto;margin-top:3px}.student-pick span{display:block;min-width:0}.student-pick b,.student-pick small{display:block}.student-pick small{margin-top:3px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:1050px){.student-pick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:760px){.student-pick-grid{grid-template-columns:1fr}.action-panel>summary{align-items:flex-start;flex-direction:column}}