:root {
  --teal-700: #0f766e;
  --teal-600: #0d9488;
  --teal-50: #f0fdfa;
  --ink: #0f172a;
  --ink-soft: #475569;
  --muted: #94a3b8;
  --line: #e2e8f0;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --danger: #dc2626;
  --warn: #d97706;
  --ok: #16a34a;
  --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 8px 24px rgba(15, 23, 42, .06);
  --radius: 14px;
  --radius-sm: 10px;
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  padding-bottom: calc(68px + var(--safe-b));
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* 顶部栏 */
.appbar {
  position: sticky; top: 0; z-index: 20;
  background: linear-gradient(135deg, var(--teal-700), var(--teal-600));
  color: #fff;
}
.appbar-inner {
  max-width: 960px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { font-size: 28px; line-height: 1; }
.brand-text h1 { font-size: 17px; margin: 0; font-weight: 700; letter-spacing: .5px; }
.brand-text p { font-size: 12px; margin: 2px 0 0; opacity: .85; }

.icon-btn {
  background: rgba(255, 255, 255, .15); border: 0; color: #fff;
  width: 40px; height: 40px; border-radius: 10px; font-size: 18px; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
}
.icon-btn:hover { background: rgba(255, 255, 255, .28); }

/* 云端状态徽章 */
.cloud-badge {
  font-size: 12px; line-height: 1; padding: 6px 10px; border-radius: 999px;
  white-space: nowrap; cursor: default; user-select: none;
  border: 1px solid rgba(255, 255, 255, .35); color: #fff;
  display: inline-flex; align-items: center; gap: 4px;
}
.cloud-badge.ok { background: rgba(16, 185, 129, .25); border-color: rgba(16, 185, 129, .6); }
.cloud-badge.off { background: rgba(255, 255, 255, .14); }
.cloud-badge.sync { background: rgba(251, 191, 36, .25); border-color: rgba(251, 191, 36, .6); }

/* 项目条 */
.project-bar {
  background: var(--surface); border-bottom: 1px solid var(--line);
  position: sticky; top: 64px; z-index: 15;
}
.project-bar-inner {
  max-width: 960px; margin: 0 auto; padding: 10px 16px;
  display: flex; gap: 10px; align-items: center;
}
.project-select {
  flex: 1; min-width: 0; padding: 10px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--line); background: var(--bg); font-size: 15px; color: var(--ink);
}

/* 容器 */
.container { max-width: 960px; margin: 0 auto; padding: 16px; }
.view { animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* 卡片 */
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px; margin-bottom: 16px;
}
.card-head { margin-bottom: 14px; }
.card-head h2 { font-size: 16px; margin: 0; }
.muted { color: var(--ink-soft); font-size: 13px; margin: 4px 0 0; }

/* 表单 */
.form { display: flex; flex-direction: column; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; }
label { font-size: 13px; font-weight: 600; color: var(--ink-soft); }
.req { color: var(--danger); }
input, select, textarea {
  font: inherit; color: var(--ink);
  padding: 11px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: #fff; width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--teal-600); outline-offset: 1px; border-color: var(--teal-600);
}
textarea { resize: vertical; }

/* 按钮 */
.btn {
  font: inherit; font-weight: 600; cursor: pointer; border-radius: var(--radius-sm);
  padding: 11px 16px; border: 1px solid transparent; font-size: 14px;
}
.btn-primary { background: var(--teal-600); color: #fff; }
.btn-primary:hover { background: var(--teal-700); }
.btn-ghost { background: #fff; color: var(--ink-soft); border-color: var(--line); }
.btn-ghost:hover { background: var(--bg); }
.btn-danger { background: #fff; color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: #fef2f2; }
.btn-danger-full { background: #fff; color: var(--danger); border-color: var(--line); width: 100%; }
.btn-danger-full:hover { background: #fef2f2; }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; }
.btn-row { display: flex; gap: 10px; }
.btn-row .btn { flex: 1; text-align: center; }

/* 列表工具条 */
.list-toolbar { display: flex; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.search { flex: 1; min-width: 160px; }
.filter-select { min-width: 120px; }

/* 表格 */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th, .data-table td {
  text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); white-space: nowrap;
}
.data-table th { color: var(--ink-soft); font-size: 12px; font-weight: 600; }
.data-table td.dev { font-weight: 600; white-space: normal; }
.data-table .col-act { width: 1%; }
.tag {
  display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600;
}
.tag-type { background: var(--teal-50); color: var(--teal-700); }
.sev-紧急 { background: #fef2f2; color: var(--danger); }
.sev-重要 { background: #fff7ed; color: var(--warn); }
.sev-一般 { background: #f0fdf4; color: var(--ok); }
.st-待处理 { background: #fef2f2; color: var(--danger); }
.st-处理中 { background: #fff7ed; color: var(--warn); }
.st-已解决 { background: #f0fdf4; color: var(--ok); }
.row-btn {
  border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 5px 9px;
  font-size: 12px; cursor: pointer; color: var(--ink-soft); margin-right: 4px;
}
.row-btn:hover { background: var(--bg); }
.empty { text-align: center; color: var(--muted); padding: 30px 0; }

/* 统计概要 */
.stats-summary {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 16px;
}
.stat {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; box-shadow: var(--shadow);
}
.stat .num { font-size: 26px; font-weight: 800; line-height: 1.1; }
.stat .lbl { font-size: 12px; color: var(--ink-soft); margin-top: 4px; }
.stat.c-total .num { color: var(--teal-700); }
.stat.c-todo .num { color: var(--danger); }
.stat.c-doing .num { color: var(--warn); }
.stat.c-done .num { color: var(--ok); }

.card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card-grid .card { margin-bottom: 0; }
.chart-box { position: relative; height: 260px; }
.card-grid .chart-box { height: 220px; }

/* 底部导航 */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 25;
  background: var(--surface); border-top: 1px solid var(--line);
  display: flex; padding-bottom: var(--safe-b);
}
.tabbar .tab {
  flex: 1; border: 0; background: none; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 10px 0 8px; font-size: 11px; color: var(--muted);
}
.tabbar .tab .tab-ico { font-size: 20px; line-height: 1; }
.tabbar .tab.active { color: var(--teal-700); font-weight: 700; }

/* 弹窗 */
.modal { position: fixed; inset: 0; z-index: 40; display: flex; align-items: flex-end; justify-content: center; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(15, 23, 42, .5); }
.modal-panel {
  position: relative; background: var(--surface); width: 100%; max-width: 560px;
  border-radius: 18px 18px 0 0; padding: 18px; max-height: 88vh; overflow-y: auto;
  animation: slideUp .25s ease;
}
@keyframes slideUp { from { transform: translateY(100%); } to { transform: none; } }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.modal-head h3 { margin: 0; font-size: 17px; }

.project-list { list-style: none; padding: 0; margin: 16px 0 0; display: flex; flex-direction: column; gap: 8px; }
.project-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--bg);
}
.project-list .p-meta { display: flex; flex-direction: column; }
.project-list .p-meta b { font-size: 14px; }
.project-list .p-meta span { font-size: 12px; color: var(--ink-soft); }
.project-list .p-del { color: var(--danger); border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 5px 9px; cursor: pointer; }

.data-actions { display: flex; flex-direction: column; gap: 12px; }
.switch-row { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--ink-soft); }
.switch-row input { width: auto; }

/* 用户按钮 */
.user-chip {
  background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px; padding: 7px 14px; font-size: 13px; font-weight: 600; cursor: pointer;
  max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.user-chip:hover { background: rgba(255,255,255,.28); }

/* 角色徽章 */
.role-badge {
  font-size: 12px; font-weight: 600; color: var(--teal-700);
  background: var(--teal-50); border: 1px solid #99f6e4; padding: 4px 10px; border-radius: 999px;
}

/* 登录弹窗 */
.auth-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.auth-tab {
  flex: 1; padding: 9px; border: 1px solid var(--line); background: #fff; border-radius: var(--radius-sm);
  font-size: 14px; cursor: pointer; color: var(--ink-soft);
}
.auth-tab.active { background: var(--teal-600); color: #fff; border-color: var(--teal-600); }
.auth-msg { color: var(--danger); font-size: 13px; min-height: 18px; margin: 0 0 4px; }
.muted.center { text-align: center; margin-top: 10px; }

/* 成员管理 */
.invite-row { display: flex; align-items: center; gap: 10px; margin: 12px 0 4px; }
.invite-row code { flex: 1; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 14px; }
.project-list .m-right { display: flex; align-items: center; gap: 8px; }
.role-sel { padding: 6px 8px; border-radius: 8px; border: 1px solid var(--line); font-size: 13px; }


/* Toast */
.toast {
  position: fixed; left: 50%; bottom: 84px; transform: translateX(-50%);
  background: var(--ink); color: #fff; padding: 10px 18px; border-radius: 999px;
  font-size: 14px; z-index: 60; box-shadow: var(--shadow); animation: fade .2s ease;
}
.toast[hidden] { display: none; }

/* 桌面适配 */
@media (min-width: 720px) {
  .project-bar { top: 65px; }
  .tabbar { display: none; }
  .container { padding-top: 22px; }
  body { padding-bottom: 24px; }
  .stats-summary { grid-template-columns: repeat(4, 1fr); }
  .modal { align-items: center; }
  .modal-panel { border-radius: 18px; }
  .data-table td.dev, .data-table th { white-space: nowrap; }
}