/* ============================================================
   CSS 数字访问员平台 · 设计系统「学术·静雅」
   暖纸白底 / 墨色字 / 深青绿主色 / 陶土金点缀
   ============================================================ */
:root {
  --paper: #f6f4ef;
  --paper-2: #efece4;
  --surface: #ffffff;
  --ink: #16202a;
  --ink-2: #44505c;
  --ink-3: #76808b;
  --line: #e3ddd1;
  --line-2: #ece7dc;
  --primary: #136f63;
  --primary-d: #0e5a50;
  --primary-l: #e4efec;
  --primary-tint: #f0f6f4;
  --gold: #c08a3e;
  --gold-l: #f5ecdc;
  --danger: #b4452f;
  --danger-l: #f7e6e1;
  --warn: #b8863a;
  --warn-l: #f7eeda;
  --ok: #2f7d5c;
  --ok-l: #e5f1ea;
  --info: #3a6ea5;
  --info-l: #e7eff7;
  --radius: 14px;
  --radius-s: 9px;
  --radius-l: 20px;
  --shadow: 0 1px 2px rgba(22,32,42,.04), 0 6px 20px rgba(22,32,42,.06);
  --shadow-l: 0 4px 12px rgba(22,32,42,.07), 0 18px 48px rgba(22,32,42,.10);
  --font: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--primary); text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 650; letter-spacing: -.01em; }
::selection { background: var(--primary-l); }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #d7d0c2; border-radius: 8px; border: 2px solid var(--paper); }
::-webkit-scrollbar-thumb:hover { background: #c5bdac; }

/* ---------- 精修：加载/骨架/入场/焦点 ---------- */
.spinner { width: 22px; height: 22px; border-radius: 50%; border: 2.5px solid var(--line); border-top-color: var(--primary); animation: spin .7s linear infinite; display: inline-block; }
.spinner.lg { width: 30px; height: 30px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-box { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 56px 20px; color: var(--ink-3); }
.skeleton { background: linear-gradient(90deg, var(--paper-2) 25%, #f3f0e9 37%, var(--paper-2) 63%); background-size: 400% 100%; animation: shimmer 1.4s ease infinite; border-radius: 8px; }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.fade-in { animation: fadeUp .34s cubic-bezier(.2,.7,.3,1) both; }
.content > * { animation: fadeUp .3s cubic-bezier(.2,.7,.3,1) both; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
.btn:focus-visible, .input:focus-visible, .chip:focus-visible { outline: none; }

/* ---------- 图标 ---------- */
.ic-svg { display: inline-block; vertical-align: -.18em; flex-shrink: 0; }
[data-icon] { display: inline-flex; align-items: center; justify-content: center; line-height: 0; }
.btn [data-icon], .btn .ic-svg { vertical-align: middle; }
.nav-item .ic { display: inline-flex; }

/* ---------- 通用排版 ---------- */
.eyebrow {
  font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600;
}
.muted { color: var(--ink-3); }
.small { font-size: 13px; }
.tnum { font-variant-numeric: tabular-nums; }

/* ---------- 布局：后台外壳 ---------- */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 244px; flex-shrink: 0; background: var(--surface);
  border-right: 1px solid var(--line); padding: 22px 16px;
  display: flex; flex-direction: column; gap: 6px; position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; align-items: center; gap: 11px; padding: 4px 8px 18px; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
  background: linear-gradient(145deg, var(--primary), var(--primary-d));
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 17px;
  box-shadow: 0 4px 10px rgba(19,111,99,.28);
}
.brand .name { font-weight: 680; font-size: 15.5px; line-height: 1.15; }
.brand .sub { font-size: 11px; color: var(--ink-3); }

.nav-item {
  display: flex; align-items: center; gap: 11px; padding: 9px 12px; border-radius: 10px;
  color: var(--ink-2); font-size: 14px; font-weight: 500; cursor: pointer; transition: .14s;
}
.nav-item:hover { background: var(--paper-2); color: var(--ink); }
.nav-item.active { background: var(--primary-tint); color: var(--primary-d); font-weight: 600; position: relative; }
.nav-item.active::before { content: ''; position: absolute; left: -16px; top: 50%; transform: translateY(-50%); width: 3px; height: 18px; background: var(--primary); border-radius: 0 3px 3px 0; }
.nav-item .ic { width: 18px; text-align: center; opacity: .85; }
.nav-sep { height: 1px; background: var(--line-2); margin: 10px 6px; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  height: 62px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.8);
  backdrop-filter: blur(8px); display: flex; align-items: center; gap: 16px;
  padding: 0 26px; position: sticky; top: 0; z-index: 20;
}
.topbar h1 { font-size: 17px; font-weight: 640; }
.topbar .spacer { flex: 1; }
.content { padding: 26px; max-width: 1240px; width: 100%; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card.pad { padding: 20px; }
.card-h { padding: 16px 20px; border-bottom: 1px solid var(--line-2); display: flex; align-items: center; gap: 12px; }
.card-h h3 { font-size: 15px; font-weight: 620; }
.card-h .spacer { flex: 1; }
.card-b { padding: 20px; }

.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.row { display: flex; gap: 12px; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.col { display: flex; flex-direction: column; gap: 12px; }
.spacer { flex: 1; }

/* ---------- 统计卡 ---------- */
.stat { padding: 18px 20px; transition: .16s; position: relative; overflow: hidden; }
.card.stat:hover { transform: translateY(-2px); box-shadow: var(--shadow-l); border-color: #d8d0c1; }
.stat .label { font-size: 12.5px; color: var(--ink-3); font-weight: 500; display: flex; align-items: center; gap: 6px; }
.stat .label .ic-svg { opacity: .6; }
.stat .value { font-size: 30px; font-weight: 700; letter-spacing: -.02em; margin-top: 6px; font-variant-numeric: tabular-nums; color: var(--ink); }
.stat .delta { font-size: 12px; margin-top: 4px; }
.stat.accent::after { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--primary); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font-family: inherit; font-size: 14px; font-weight: 560; line-height: 1;
  padding: 10px 16px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink); cursor: pointer; transition: .14s; white-space: nowrap;
}
.btn:hover { border-color: #d2cabb; background: var(--paper-2); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 3px 9px rgba(19,111,99,.22); }
.btn.primary:hover { background: var(--primary-d); border-color: var(--primary-d); }
.btn.gold { background: var(--gold); border-color: var(--gold); color: #fff; }
.btn.gold:hover { filter: brightness(.95); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
.btn.ghost:hover { background: var(--paper-2); }
.btn.danger { color: var(--danger); border-color: var(--danger-l); background: var(--danger-l); }
.btn.danger:hover { background: #f1d8d0; }
.btn.sm { padding: 7px 11px; font-size: 13px; border-radius: 8px; }
.btn.lg { padding: 13px 22px; font-size: 15.5px; border-radius: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.block { width: 100%; }
.btn-icon { width: 34px; height: 34px; padding: 0; border-radius: 9px; }

/* ---------- 徽章 / chip ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 560;
  padding: 3px 9px; border-radius: 999px; background: var(--paper-2); color: var(--ink-2);
  border: 1px solid var(--line-2);
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.green { background: var(--ok-l); color: var(--ok); border-color: transparent; }
.badge.gold { background: var(--gold-l); color: var(--gold); border-color: transparent; }
.badge.red { background: var(--danger-l); color: var(--danger); border-color: transparent; }
.badge.warn { background: var(--warn-l); color: var(--warn); border-color: transparent; }
.badge.blue { background: var(--info-l); color: var(--info); border-color: transparent; }
.badge.gray { background: var(--paper-2); color: var(--ink-3); }

.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--surface); font-size: 13px; cursor: pointer; transition: .14s;
}
.chip:hover { border-color: var(--primary); color: var(--primary-d); }
.chip.on { background: var(--primary-tint); border-color: var(--primary); color: var(--primary-d); font-weight: 560; }

/* ---------- 表格 ---------- */
.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th {
  text-align: left; font-weight: 580; color: var(--ink-3); font-size: 12px; letter-spacing: .03em;
  padding: 11px 14px; border-bottom: 1px solid var(--line); background: var(--paper); position: sticky; top: 0;
}
.table td { padding: 12px 14px; border-bottom: 1px solid var(--line-2); color: var(--ink); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--primary-tint); }
.table.compact td, .table.compact th { padding: 8px 12px; }

/* ---------- 表单 ---------- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field label { font-size: 13px; font-weight: 560; color: var(--ink-2); }
.field .hint { font-size: 12px; color: var(--ink-3); }
.input, .select, .textarea {
  font-family: inherit; font-size: 14px; color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; width: 100%; transition: .14s;
}
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-l);
}
.textarea { resize: vertical; min-height: 80px; line-height: 1.6; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%2376808b' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; }

/* ---------- 进度条 ---------- */
.progress { height: 8px; background: var(--paper-2); border-radius: 999px; overflow: hidden; }
.progress > i { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), #1d8c7d); border-radius: 999px; transition: width .5s cubic-bezier(.2,.7,.3,1); }
.progress.gold > i { background: linear-gradient(90deg, var(--gold), #d6a256); }

/* ---------- 空状态 ---------- */
.empty { text-align: center; padding: 48px 20px; color: var(--ink-3); }
.empty .ic { font-size: 30px; opacity: .5; margin-bottom: 8px; }

/* ---------- toast ---------- */
.toast-wrap { position: fixed; top: 18px; left: 50%; transform: translateX(-50%); z-index: 9999; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast {
  background: var(--ink); color: #fff; padding: 10px 18px; border-radius: 10px; font-size: 13.5px;
  box-shadow: var(--shadow-l); animation: toastIn .25s ease; max-width: 88vw;
}
.toast.ok { background: var(--primary-d); }
.toast.err { background: var(--danger); }
@keyframes toastIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }

/* ---------- 模态 ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(22,32,42,.42); backdrop-filter: blur(2px); z-index: 1000; display: grid; place-items: center; padding: 20px; animation: toastIn .2s; }
.modal { background: var(--surface); border-radius: var(--radius-l); box-shadow: var(--shadow-l); width: 100%; max-width: 520px; max-height: 88vh; overflow: auto; animation: modalIn .26s cubic-bezier(.2,.8,.3,1) both; }
@keyframes modalIn { from { opacity: 0; transform: translateY(12px) scale(.97); } to { opacity: 1; transform: none; } }
.modal-h { padding: 20px 24px; border-bottom: 1px solid var(--line-2); display: flex; align-items: center; }
.modal-h h3 { font-size: 16px; }
.modal-b { padding: 22px 24px; }
.modal-f { padding: 16px 24px; border-top: 1px solid var(--line-2); display: flex; gap: 10px; justify-content: flex-end; }

/* ---------- 杂项 ---------- */
.divider { height: 1px; background: var(--line-2); margin: 16px 0; }
.kv { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px dashed var(--line-2); font-size: 13.5px; }
.kv:last-child { border-bottom: none; }
.kv .k { color: var(--ink-3); }
.kv .v { font-weight: 540; text-align: right; }
.tag-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

@media (max-width: 880px) {
  .sidebar { display: none; }
  .grid.cols-3, .grid.cols-4, .grid.cols-2 { grid-template-columns: 1fr; }
  .content { padding: 16px; }
}

/* 右上角用户条（后台页面，由 App.guard 注入） */
.user-chip { position: fixed; top: 12px; right: 16px; z-index: 90; display: flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 4px 4px 4px 12px; box-shadow: var(--shadow-s); }
.user-chip .uc-role { font-size: 11px; color: var(--primary-d); background: var(--primary-tint); padding: 2px 8px; border-radius: 999px; font-weight: 600; }
.user-chip .uc-name { font-size: 12.5px; color: var(--ink); font-weight: 600; }
.user-chip .uc-out { font-size: 12px; color: var(--ink-3); background: var(--paper); border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; cursor: pointer; }
.user-chip .uc-out:hover { color: var(--danger); border-color: var(--danger); }

/* 侧边栏底部用户区（由 App.guard 注入，替代右上角浮条避免遮挡操作按钮） */
.sidebar-user { margin-top: auto; display: flex; align-items: center; gap: 10px; padding: 10px; border-radius: 12px;
  border: 1px solid var(--line); background: var(--paper); }
.sidebar-user .su-av { width: 32px; height: 32px; border-radius: 50%; background: var(--primary-tint); color: var(--primary-d);
  display: grid; place-items: center; font-weight: 700; font-size: 14px; flex-shrink: 0; }
.sidebar-user .su-meta { flex: 1; min-width: 0; }
.sidebar-user .su-name { font-size: 13px; font-weight: 600; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user .su-role { font-size: 11px; color: var(--ink-3); }
.sidebar-user .su-out { font-size: 12px; color: var(--ink-3); background: var(--surface); border: 1px solid var(--line);
  border-radius: 8px; padding: 4px 10px; cursor: pointer; flex-shrink: 0; }
.sidebar-user .su-out:hover { color: var(--danger); border-color: var(--danger); }

/* 当前调查年度标签 + 封存只读条 */
.wave-chip { display: inline-flex; align-items: center; gap: 6px; margin-left: 14px; padding: 4px 12px; border-radius: 999px;
  background: var(--primary-tint); color: var(--primary-d); font-size: 12.5px; font-weight: 600; }
.wave-chip.ro { background: var(--warn-l); color: var(--warn); }
.wave-chip .wc-ro { font-size: 11px; background: var(--warn); color: #fff; padding: 1px 7px; border-radius: 999px; }
.ro-banner { margin: 14px 24px 0; padding: 10px 16px; border-radius: 10px; background: var(--warn-l); color: var(--warn);
  font-size: 13px; font-weight: 600; border: 1px solid var(--warn); }