:root{--bg: #f5f6f8;--card: #ffffff;--border: #e4e6eb;--text: #1f2329;--text-sub: #6b7280;--primary: #1677ff;--primary-hover: #4096ff;--danger: #f5222d;--success: #52c41a;--radius: 10px;--shadow: 0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.04)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6}a{color:var(--primary);text-decoration:none}button{cursor:pointer;border:none;background:var(--primary);color:#fff;padding:8px 16px;border-radius:6px;font-size:14px;transition:background .2s}button:hover{background:var(--primary-hover)}button:disabled{background:#c0c4cc;cursor:not-allowed}button.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}button.btn-ghost:hover{background:#f0f1f3}button.btn-danger{background:var(--danger)}button.btn-danger:hover{background:#ff4d4f}button.btn-sm{padding:4px 10px;font-size:13px}input,select,textarea{padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;outline:none;background:#fff;color:var(--text)}input:focus,select:focus,textarea:focus{border-color:var(--primary)}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1677ff,#4096ff,#69b1ff)}.login-box{background:#fff;border-radius:14px;padding:40px;width:360px;box-shadow:0 8px 40px #0000001f}.login-box h1{font-size:22px;margin-bottom:4px;text-align:center}.login-box .sub{color:var(--text-sub);text-align:center;margin-bottom:28px;font-size:13px}.login-box .field{margin-bottom:16px}.login-box .field label{display:block;margin-bottom:6px;color:var(--text-sub);font-size:13px}.login-box .field input{width:100%}.login-box button{width:100%;padding:10px;font-size:15px;margin-top:8px}.login-err{color:var(--danger);text-align:center;margin-top:12px;font-size:13px}.layout{display:flex;min-height:100vh}.sidebar{width:200px;background:#fff;border-right:1px solid var(--border);padding:20px 0;flex-shrink:0;position:relative}.sidebar .logo{font-size:18px;font-weight:700;padding:0 20px 20px;color:var(--primary)}.sidebar .nav-item{display:block;padding:11px 20px;color:var(--text);cursor:pointer;font-size:14px}.sidebar .nav-item:hover{background:#f5f6f8}.sidebar .nav-item.active{background:#e6f4ff;color:var(--primary);font-weight:600;border-right:3px solid var(--primary)}.sidebar .user-info{position:absolute;bottom:0;left:0;width:200px;padding:16px 20px;border-top:1px solid var(--border)}.main{flex:1;padding:24px;overflow:auto}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.topbar h2{font-size:20px}.mobile-topbar{display:none;align-items:center;gap:12px;background:#fff;border-bottom:1px solid var(--border);padding:10px 14px;position:sticky;top:0;z-index:30}.mobile-topbar .mobile-title{font-weight:700;color:var(--primary);font-size:16px}.hamburger{border:1px solid var(--border);background:#fff;border-radius:8px;font-size:20px;line-height:1;padding:6px 12px;cursor:pointer}.nav-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;z-index:40}.sidebar-drawer{position:fixed;top:0;left:0;bottom:0;z-index:50;box-shadow:4px 0 16px #00000026;overflow-y:auto}@media (max-width: 899px){.mobile-topbar{display:flex}.layout{flex-direction:column}.main{padding:14px}}.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px}.toolbar .spacer{flex:1}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}.file-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);cursor:pointer;transition:transform .15s,box-shadow .15s;position:relative}.file-card:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0000001a}.file-card .thumb{width:100%;height:150px;background:#1f1f1f;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}.file-card .thumb img{width:100%;height:100%;object-fit:cover}.file-card .thumb .play-icon{position:absolute;width:48px;height:48px;display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff}.file-card .meta{padding:12px}.file-card .meta .name{font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-card .meta .info{color:var(--text-sub);font-size:12px;margin-top:4px;display:flex;justify-content:space-between}.file-card .badge{position:absolute;top:8px;left:8px;background:#0009;color:#fff;padding:2px 8px;border-radius:4px;font-size:11px}.table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.table th,.table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);font-size:13px}.table th{background:#fafafa;color:var(--text-sub);font-weight:600}.table tr:hover td{background:#fafbfc}.table .thumb-sm{width:48px;height:36px;object-fit:cover;border-radius:4px;background:#1f1f1f}.dropzone{border:2px dashed #c0c4cc;border-radius:var(--radius);padding:50px 20px;text-align:center;color:var(--text-sub);cursor:pointer;transition:all .2s;background:#fff}.dropzone:hover,.dropzone.drag{border-color:var(--primary);color:var(--primary);background:#f0f7ff}.upload-item{display:flex;align-items:center;gap:12px;padding:10px;border:1px solid var(--border);border-radius:8px;margin-top:10px;background:#fff}.upload-item .fname{flex:1;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.upload-item .progress-bar{width:200px;height:8px;background:#f0f1f3;border-radius:4px;overflow:hidden}.upload-item .progress-bar .fill{height:100%;background:var(--primary);transition:width .2s}.upload-item .status{font-size:12px;color:var(--text-sub);width:80px;text-align:right}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-box{background:#fff;border-radius:12px;overflow:hidden;max-width:90vw;max-height:90vh;display:flex;flex-direction:column}.modal-box .modal-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border)}.modal-box .modal-body{padding:16px;overflow:auto}.modal-box .modal-body img{max-width:80vw;max-height:65vh;display:block}.modal-box .modal-body video{max-width:80vw;max-height:65vh;display:block;background:#000}.modal-foot{display:flex;gap:10px;padding:12px 16px;border-top:1px solid var(--border);justify-content:flex-end}.form-row{display:flex;gap:12px;margin-bottom:12px;align-items:center}.form-row label{width:80px;text-align:right;color:var(--text-sub);flex-shrink:0}.form-row input,.form-row select{flex:1}.empty{text-align:center;color:var(--text-sub);padding:60px 0}.toast{position:fixed;top:20px;left:50%;transform:translate(-50%);background:#1f2329;color:#fff;padding:10px 20px;border-radius:8px;z-index:2000;font-size:13px;opacity:0;transition:opacity .3s}.toast.show{opacity:1}.toast.err{background:var(--danger)}.pagination{display:flex;gap:8px;align-items:center;justify-content:center;margin-top:16px;color:var(--text-sub)}.status-filter{display:flex;gap:6px;align-items:center}.status-chip{background:#fff;color:var(--text-sub);border:1px solid var(--border);padding:6px 14px;border-radius:16px;font-size:13px;cursor:pointer;transition:all .15s}.status-chip:hover{border-color:var(--primary);color:var(--primary)}.status-chip.active{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600}.print-only{display:none}@media print{body *{visibility:hidden}.print-only,.print-only *{visibility:visible}.print-only{display:block;position:absolute;left:0;top:0;width:100%;padding:0}.print-header{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid #000;padding-bottom:8px;margin-bottom:12px}.print-title{font-size:22px;font-weight:700}.print-sub{font-size:13px;color:#333}.print-row{border-bottom:1px dashed #999;padding:10px 0;page-break-inside:avoid}.print-info{margin-bottom:6px}.print-no{font-size:18px;font-weight:700;font-family:monospace}.print-meta{display:flex;flex-wrap:wrap;gap:4px 12px;margin-top:4px;font-size:12px}.print-tag{color:#333}.print-thumbs{display:flex;flex-wrap:wrap;gap:6px}.print-thumbs img{width:64px;height:64px;object-fit:cover;border:1px solid #ccc}.print-footer{margin-top:12px;font-size:11px;color:#666;text-align:right}}@media screen{.print-only{display:none}}