* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #DBEAFE;
  --bg: #F1F5F9;
  --surface: #FFFFFF;
  --text: #0F172A;
  --text-2: #64748B;
  --text-3: #94A3B8;
  --border: #E2E8F0;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --radius: 10px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.04);
  --shadow: 0 1px 3px rgba(15,23,42,.06), 0 1px 2px rgba(15,23,42,.04);
  --shadow-md: 0 4px 12px rgba(15,23,42,.08);
}
body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.5; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 14px; padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; background: #fff; outline: none; transition: border-color .15s, box-shadow .15s; color: var(--text); }
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }

/* 登录 */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg,#1E40AF 0%, #2563EB 50%, #3B82F6 100%); position: relative; overflow: hidden; }
.login-wrap::before { content:''; position: absolute; width: 600px; height: 600px; border-radius: 50%; background: rgba(255,255,255,.06); top: -200px; right: -150px; }
.login-wrap::after { content:''; position: absolute; width: 400px; height: 400px; border-radius: 50%; background: rgba(255,255,255,.05); bottom: -100px; left: -100px; }
.login-box { background: #fff; padding: 44px 40px; border-radius: 16px; width: 380px; box-shadow: 0 24px 60px rgba(0,0,0,.25); position: relative; z-index: 1; }
.login-title { font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 6px; letter-spacing: -.02em; }
.login-sub { color: var(--text-2); font-size: 13px; margin-bottom: 28px; }
.login-box input { width: 100%; margin-bottom: 12px; padding: 11px 14px; border-radius: 8px; }
.login-err { color: var(--danger); margin-top: 8px; font-size: 13px; }
.login-tip { color: var(--text-3); font-size: 12px; margin-top: 14px; text-align: center; }

/* 顶栏 */
.topbar { background: rgba(255,255,255,.85); backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--border); padding: 0 24px; height: 60px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 50; }
.topbar-left { display: flex; align-items: center; gap: 18px; }
.logo-img { width: 32px; height: 32px; border-radius: 8px; object-fit: cover; }
.logo-text { font-weight: 700; color: var(--text); font-size: 16px; letter-spacing: -.01em; }
.topbar-right { display: flex; align-items: center; gap: 4px; }
.nav-link { cursor: pointer; color: var(--text-2); padding: 7px 14px; border-radius: 8px; font-size: 13.5px; font-weight: 500; transition: all .15s; }
.nav-link:hover { background: #F1F5F9; color: var(--text); }
.nav-link.active { color: var(--primary); background: var(--primary-light); }
.user-chip { color: var(--text-2); font-size: 13px; margin: 0 12px; padding: 4px 10px; background: #F1F5F9; border-radius: 20px; }

/* 次栏 */
.subbar { background: var(--surface); padding: 12px 24px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; position: sticky; top: 60px; z-index: 40; }
.subbar-left { display: flex; align-items: center; gap: 12px; }
.sprint-meta { color: var(--text-2); font-size: 13px; }

/* 按钮 */
.btn { padding: 8px 16px; border-radius: 8px; border: 1px solid var(--border); background: #fff; color: var(--text); font-size: 13px; font-weight: 500; transition: all .15s; display: inline-flex; align-items: center; gap: 6px; }
.btn:hover { border-color: var(--text-3); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 1px 2px rgba(37,99,235,.3); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn-ghost:hover { background: #F1F5F9; color: var(--text); }
.btn-warn { background: var(--warning); border-color: var(--warning); color: #fff; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: 6px; }

.sel, .inp { padding: 7px 12px; border-radius: 8px; }

/* 看板 */
.filter-bar { padding: 14px 24px 0; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.warn-bar { padding: 10px 24px 0; display: flex; gap: 8px; flex-wrap: wrap; }
.warn-tag { background: #FEF3C7; color: #92400E; padding: 4px 10px; border-radius: 6px; font-size: 12px; font-weight: 500; }
.warn-tag.over { background: #FEE2E2; color: #991B1B; }
.warn-tag.done { background: #D1FAE5; color: #065F46; }

.board-cols { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; padding: 14px 24px 24px; align-items: stretch; }
.board-col { background: #F8FAFC; border-radius: var(--radius); padding: 0; min-height: 420px; display: flex; flex-direction: column; }
.col-head { display: flex; align-items: center; gap: 8px; padding: 12px 14px; font-weight: 600; font-size: 13px; position: sticky; top: 108px; background: #F8FAFC; z-index: 5; border-bottom: 1px solid var(--border); border-radius: var(--radius) var(--radius) 0 0; flex-shrink: 0; }
.col-dot { width: 8px; height: 8px; border-radius: 50%; background: #CBD5E1; }
.col-dot.doing { background: var(--primary); }
.col-dot.testing { background: var(--warning); }
.col-dot.failed { background: var(--danger); }
.col-dot.done { background: var(--success); }
.col-count { margin-left: auto; background: #E2E8F0; color: var(--text-2); padding: 1px 9px; border-radius: 10px; font-size: 12px; font-weight: 600; }
.col-body { padding: 10px; flex: 1; min-height: 200px; }

.card { background: #fff; border: 1px solid var(--border); border-left: 3px solid var(--border); border-radius: 8px; padding: 12px; margin-bottom: 8px; box-shadow: var(--shadow-sm); cursor: grab; transition: box-shadow .15s, transform .15s; position: relative; }
.card:hover { box-shadow: var(--shadow-md); }
.card:active { cursor: grabbing; }
.card.dragging { opacity: 0.5; transform: rotate(2deg); }
.card.locked { cursor: not-allowed; }
.card.col-todo { border-left-color: #CBD5E1; }
.card.col-doing { border-left-color: var(--primary); background: #F8FBFF; }
.card.col-testing { border-left-color: var(--warning); background: #FFFDF5; }
.card.col-failed { border-left-color: var(--danger); background: #FEF8F8; }
.card.col-done { border-left-color: var(--success); background: #F6FDF9; }
.card-title { font-weight: 600; margin-bottom: 8px; line-height: 1.45; font-size: 13.5px; }
.card-meta { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 10px; }
.card-foot { display: flex; justify-content: space-between; align-items: center; color: var(--text-2); font-size: 12px; }
.card-date { color: var(--text-3); font-size: 11px; margin-top: 4px; }
.card-blocker { margin-top: 8px; color: #991B1B; font-size: 12px; background: #FEE2E2; padding: 4px 8px; border-radius: 6px; }

.tag { display: inline-block; padding: 2px 8px; border-radius: 5px; font-size: 11px; font-weight: 500; background: #F1F5F9; color: var(--text-2); }
.tag.p-high { background: #FEE2E2; color: #991B1B; }
.tag.p-medium { background: #FEF3C7; color: #92400E; }
.tag.p-low { background: #DBEAFE; color: #1E40AF; }
.tag.role { background: var(--primary-light); color: var(--primary); }
.tag.s-not_started { background: #F1F5F9; color: var(--text-2); }
.tag.s-active { background: var(--primary-light); color: #1E40AF; }
.tag.s-closed { background: #D1FAE5; color: #065F46; }

.col-empty { color: var(--text-3); text-align: center; padding: 24px 0; font-size: 12px; }
.empty { text-align: center; padding: 80px 20px; color: var(--text-2); }

/* 卡片图标按钮 */
.card-actions { position: absolute; top: 8px; right: 8px; display: flex; gap: 2px; opacity: 0; transition: opacity .15s; }
.card:hover .card-actions { opacity: 1; }
.icon-btn { width: 26px; height: 26px; display: inline-flex; align-items: center; justify-content: center; border-radius: 6px; color: var(--text-3); transition: all .15s; font-size: 14px; }
.icon-btn:hover { background: #F1F5F9; color: var(--primary); }
.icon-btn.danger:hover { background: #FEE2E2; color: var(--danger); }

/* 燃尽图 */
.burndown-wrap { padding: 16px 24px; }
.burn-status { padding: 12px 16px; border-radius: 10px; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; font-weight: 500; font-size: 14px; }
.burn-status.risk { background: #FEF2F2; color: #991B1B; border: 1px solid #FECACA; }
.burn-status.ok { background: #F0FDF4; color: #166534; border: 1px solid #BBF7D0; }
.burn-status.ahead { background: #EFF6FF; color: #1E40AF; border: 1px solid #BFDBFE; }
.chart-box { width: 100%; height: 480px; background: #fff; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.seg-label { color: var(--text-2); font-size: 13px; }
.seg { display: inline-flex; background: #F1F5F9; padding: 3px; border-radius: 8px; }
.seg span { padding: 5px 14px; cursor: pointer; color: var(--text-2); border-radius: 6px; font-size: 13px; font-weight: 500; transition: all .15s; }
.seg span.on { background: #fff; color: var(--primary); box-shadow: var(--shadow-sm); }
.legend-tip { color: var(--text-3); font-size: 12px; margin-left: 16px; }

/* 页面 */
.page { padding: 20px 24px; }
.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.page-head h2 { font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
.page h3 { margin: 24px 0 12px; font-size: 15px; font-weight: 600; }
.tbl { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.tbl th, .tbl td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; font-size: 13.5px; }
.tbl th { background: #F8FAFC; font-weight: 600; color: var(--text-2); font-size: 12.5px; text-transform: uppercase; letter-spacing: .03em; }
.tbl tr:last-child td { border-bottom: none; }
.add-row { margin-top: 12px; display: flex; gap: 8px; }

/* 弹窗 */
.modal-mask { position: fixed; inset: 0; background: rgba(15,23,42,.5); backdrop-filter: blur(2px); z-index: 100; display: flex; align-items: center; justify-content: center; }
.modal { background: #fff; border-radius: 14px; width: 600px; max-height: 90vh; overflow: auto; box-shadow: 0 24px 60px rgba(0,0,0,.25); }
.modal-head { padding: 18px 22px; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 16px; display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; background: #fff; z-index: 2; }
.modal-x { cursor: pointer; color: var(--text-3); font-size: 22px; line-height: 1; }
.modal-x:hover { color: var(--text); }
.modal-body { padding: 20px 22px; }
.modal-body label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--text-2); font-weight: 500; }
.modal-body input, .modal-body select, .modal-body textarea { width: 100%; margin-top: 5px; }
.modal-foot { padding: 14px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; position: sticky; bottom: 0; background: #fff; }
.sub-h { font-weight: 600; margin: 16px 0 10px; font-size: 14px; }
.multi-sel { height: 100px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-row label { margin-bottom: 0; }
.modal-body .form-row + label { margin-top: 12px; }
.sub-tip { color: var(--text-3); font-weight: normal; font-size: 12px; margin-left: 8px; }

.radio-group { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.radio-item { display: flex; flex-direction: column; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; cursor: pointer; font-size: 13px; margin-bottom: 0; min-width: 120px; flex: 1; }
.radio-item input { margin-bottom: 4px; }
.radio-desc { font-size: 11px; color: var(--text-3); margin-top: 2px; line-height: 1.3; }

.wi-head, .wi-row { display: grid; grid-template-columns: 1fr 1fr 90px 110px 36px; gap: 8px; align-items: center; }
.wi-head { font-size: 12px; color: var(--text-3); padding: 6px 0; font-weight: 500; }
.wi-row { margin-bottom: 8px; }
.wi-row select, .wi-row input { width: 100%; padding: 7px 9px; font-size: 13px; }
.cap-tag { font-size: 11px; padding: 3px 6px; border-radius: 5px; text-align: center; white-space: nowrap; font-weight: 500; }
.cap-tag.ok { background: #D1FAE5; color: #065F46; }
.cap-tag.under { background: #DBEAFE; color: #1E40AF; }
.cap-tag.over { background: #FEE2E2; color: #991B1B; }
.cap-tag.none { background: #F1F5F9; color: var(--text-3); }

/* 导入栏 */
.import-bar { display: flex; gap: 8px; margin: 10px 0 12px; padding: 10px 12px; background: #EFF6FF; border-radius: 8px; align-items: center; }
.import-btn { cursor: pointer; display: inline-flex; align-items: center; }

.upload-area { margin-top: 6px; }
.thumb-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.thumb { position: relative; width: 80px; height: 80px; border-radius: 8px; overflow: hidden; border: 1px solid var(--border); cursor: pointer; }
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb-del { position: absolute; top: 2px; right: 2px; width: 18px; height: 18px; background: rgba(0,0,0,.5); color: #fff; border-radius: 50%; text-align: center; line-height: 16px; font-size: 14px; cursor: pointer; }
.upload-btn { margin-top: 4px; }
.preview-mask { position: fixed; inset: 0; background: rgba(0,0,0,.85); z-index: 300; display: flex; align-items: center; justify-content: center; cursor: zoom-out; }
.preview-mask img { max-width: 90%; max-height: 90%; border-radius: 8px; }

.toast { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%); background: var(--text); color: #fff; padding: 11px 22px; border-radius: 8px; z-index: 200; box-shadow: var(--shadow-md); font-size: 13.5px; }