* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: -apple-system, "PingFang SC", system-ui, sans-serif; background: #f0f2f5; color: #1a2a3a; padding: 16px; }
.container { max-width: 1200px; margin: 0 auto; }

.header { display: flex; justify-content: space-between; align-items: center; background: linear-gradient(135deg, #1a3a5c, #2d6a9f); color: #fff; padding: 16px 24px; border-radius: 12px; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; }
.header h1 { font-size: 20px; font-weight: 700; }
.header .user { font-size: 14px; opacity: 0.85; }
.header .user span { background: rgba(255,255,255,0.2); padding: 4px 12px; border-radius: 20px; }

.toolbar { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; align-items: center; }
.toolbar .left { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }
.toolbar .right { display: flex; flex-wrap: wrap; gap: 8px; }

.btn { padding: 8px 16px; border: none; border-radius: 8px; font-size: 14px; font-weight: 500; cursor: pointer; transition: background 0.2s; white-space: nowrap; }
.btn-primary { background: #2d7aff; color: #fff; }
.btn-primary:hover { background: #1a5fd9; }
.btn-success { background: #22a65e; color: #fff; }
.btn-success:hover { background: #1a8c4e; }
.btn-danger { background: #e74c3c; color: #fff; }
.btn-danger:hover { background: #c0392b; }
.btn-outline { background: #fff; color: #1a2a3a; border: 1px solid #d0dce8; }
.btn-outline:hover { background: #f0f4f8; }
.btn-sm { padding: 4px 12px; font-size: 12px; }

.search-box { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; background: #fff; padding: 8px 12px; border-radius: 8px; border: 1px solid #d0dce8; flex: 1 1 300px; }
.search-box input { border: none; outline: none; font-size: 14px; flex: 1; min-width: 100px; }
.search-box select { border: none; outline: none; font-size: 13px; background: transparent; padding: 4px 0; }
.search-box .sep { color: #d0dce8; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat-item { background: #fff; padding: 12px 16px; border-radius: 8px; text-align: center; box-shadow: 0 1px 4px rgba(0,0,0,0.04); }
.stat-item .num { font-size: 24px; font-weight: 700; color: #1a3a5c; }
.stat-item .label { font-size: 12px; color: #8895a7; }

.table-wrap { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.table-scroll { overflow-x: auto; padding: 0 4px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 700px; }
th { background: #f8f9fa; text-align: left; padding: 12px 12px; font-weight: 600; color: #4a5a6a; border-bottom: 2px solid #eef3fa; white-space: nowrap; }
td { padding: 10px 12px; border-bottom: 1px solid #f0f2f5; vertical-align: middle; }
tr:hover td { background: #fafcff; }
td .checkbox { width: 16px; height: 16px; cursor: pointer; }

.status-tag { display: inline-block; padding: 2px 12px; border-radius: 12px; font-size: 12px; font-weight: 500; }
.status-0 { background: #e8f0fe; color: #1a73e8; }
.status-1 { background: #fff3e0; color: #e65100; }
.status-2 { background: #f3e5f5; color: #7b1fa2; }
.status-3 { background: #e0f7fa; color: #006064; }
.status-4 { background: #e8f5e9; color: #2e7d32; }

.priority-tag { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 500; }
.priority-0 { background: #e8edf4; color: #4a5a6a; }
.priority-1 { background: #fff3e0; color: #e65100; }
.priority-2 { background: #ffebee; color: #c62828; }

.actions { display: flex; gap: 4px; flex-wrap: wrap; }
.actions .btn { padding: 2px 10px; font-size: 12px; }

.empty { text-align: center; color: #8895a7; padding: 40px 0; font-size: 14px; }

.modal { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.4); z-index: 999; align-items: center; justify-content: center; padding: 20px; }
.modal.open { display: flex; }
.modal-content { background: #fff; border-radius: 16px; padding: 24px 28px; max-width: 560px; width: 100%; max-height: 90vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,0.15); }
.modal-content h2 { font-size: 18px; margin-bottom: 16px; color: #1a2a3a; }
.modal-content .close { float: right; font-size: 24px; cursor: pointer; color: #8895a7; background: none; border: none; }
.modal-content .close:hover { color: #1a2a3a; }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: #3d4a5b; margin-bottom: 4px; }
.form-group label .required { color: #e74c3c; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 8px 12px; border: 1px solid #d0dce8; border-radius: 8px; font-size: 14px; font-family: inherit; transition: border 0.2s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: #2d7aff; box-shadow: 0 0 0 3px rgba(45,122,255,0.08); }
.form-group textarea { resize: vertical; min-height: 60px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 16px; padding-top: 16px; border-top: 1px solid #f0f2f5; }

.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; font-size: 14px; margin: 12px 0; }
.detail-grid .item { padding: 4px 0; border-bottom: 1px solid #f5f6f8; }
.detail-grid .item .lbl { color: #8895a7; font-size: 12px; }
.detail-grid .item .val { font-weight: 500; }

.progress-bar { display: flex; align-items: center; gap: 4px; margin: 12px 0; flex-wrap: wrap; }
.progress-bar .step { display: flex; align-items: center; gap: 4px; font-size: 12px; }
.progress-bar .step .dot { width: 12px; height: 12px; border-radius: 50%; border: 2px solid #d0dce8; background: #fff; }
.progress-bar .step .dot.done { border-color: #22a65e; background: #22a65e; }
.progress-bar .step .dot.active { border-color: #2d7aff; background: #2d7aff; box-shadow: 0 0 0 3px rgba(45,122,255,0.2); }
.progress-bar .line { width: 24px; height: 2px; background: #d0dce8; flex-shrink: 0; }
.progress-bar .line.done { background: #22a65e; }

.toast { position: fixed; top: 20px; right: 20px; padding: 12px 24px; border-radius: 8px; color: #fff; font-size: 14px; z-index: 9999; box-shadow: 0 4px 16px rgba(0,0,0,0.15); animation: slideDown 0.3s ease; }
.toast-success { background: #22a65e; }
.toast-error { background: #e74c3c; }
.toast-info { background: #2d7aff; }
@keyframes slideDown { from { opacity:0; transform:translateY(-20px); } to { opacity:1; transform:translateY(0); } }

@media (max-width: 768px) {
    .header { flex-direction: column; align-items: stretch; text-align: center; }
    .toolbar { flex-direction: column; align-items: stretch; }
    .search-box { flex-wrap: wrap; }
    .form-row { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
    .modal-content { padding: 16px; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .actions .btn { font-size: 11px; padding: 2px 8px; }
    table { font-size: 13px; min-width: 600px; }
    th, td { padding: 8px 8px; }
}