:root{--bg:#f5f7fa;--panel:#fff;--ink:#17202a;--muted:#657384;--line:#dbe2ea;--brand:#117865;--brand-dark:#0d5f51;--accent:#b7791f;--ok:#147a42;--shadow:0 16px 44px rgba(18,32,48,.08);font-family:Arial,"Microsoft YaHei",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}button,input,select,textarea{font:inherit}button{border:0;background:var(--brand);color:#fff;border-radius:6px;padding:10px 14px;cursor:pointer;font-weight:700}button:hover{background:var(--brand-dark)}button.secondary{background:#e8eef3;color:var(--ink)}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:6px;padding:10px;background:#fff}textarea{min-height:96px}.auth{min-height:100vh;display:grid;place-items:center;padding:24px}.card,.panel{background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:18px}.card{width:min(460px,100%)}.form{display:grid;gap:14px}.msg{margin:12px 0;padding:10px;background:#fff4df;border-left:4px solid var(--accent)}.shell{min-height:100vh;display:grid;grid-template-columns:230px 1fr}aside{background:#15212c;color:#fff;padding:22px 18px}.nav{display:grid;gap:8px}.nav button{background:transparent;text-align:left;color:#d8e0e8}.nav button.active,.nav button:hover{background:rgba(255,255,255,.12)}main{padding:24px}.topbar{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:18px}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}.span-12{grid-column:span 12}.span-6{grid-column:span 6}.span-4{grid-column:span 4}.muted{color:var(--muted)}table{width:100%;border-collapse:collapse;font-size:14px}th,td{border-bottom:1px solid var(--line);padding:10px;text-align:left}.actions{display:flex;gap:8px;flex-wrap:wrap}@media(max-width:900px){.shell{grid-template-columns:1fr}.span-4,.span-6,.span-12{grid-column:span 12}}
.qr-box{display:grid;justify-items:center;gap:10px;border:1px solid var(--line);border-radius:8px;padding:14px;background:#f8fafc}.qr-box img{width:220px;height:220px;max-width:100%;background:#fff;border:1px solid var(--line);border-radius:6px;padding:8px}.qr-box p{margin:0;text-align:center;word-break:break-all}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.42);display:grid;place-items:center;padding:20px;z-index:20}.modal.hidden{display:none}.modal-box{width:min(460px,100%);background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:18px}.notice-box p{margin:8px 0 16px;line-height:1.6;word-break:break-word}
.upload-row{display:grid;grid-template-columns:minmax(240px,1.4fr) minmax(180px,.8fr) minmax(220px,1fr) auto;gap:12px;align-items:end}.upload-row label{display:grid;gap:6px}.upload-row button{height:42px;white-space:nowrap}@media(max-width:900px){.upload-row{grid-template-columns:1fr}}