:root {
  --navy: #0b1f3a;
  --navy-2: #143a6b;
  --navy-3: #1e5288;
  --orange: #ff6a00;
  --orange-soft: #fff2e6;
  --ink: #1c2430;
  --ink-2: #4a5666;
  --ink-3: #7d8898;
  --line: #dfe4ea;
  --bg: #f2f5f9;
  --card: #ffffff;
  --ok: #0f9d58;
  --warn: #e6a700;
  --err: #d93a3a;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(11, 31, 58, .06), 0 6px 18px rgba(11, 31, 58, .06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

a { color: var(--navy-3); }

/* ------------------------------------------------------------------ 顶栏 */
.brandbar {
  background: var(--navy);
  color: #fff;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brandbar .mark {
  width: 26px; height: 26px;
  border-radius: 7px;
  background: var(--orange);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  flex: none;
}
.brandbar .name { font-weight: 700; letter-spacing: .5px; }
.brandbar .sub { color: #9fb2cc; font-size: 13px; }
.brandbar .spacer { flex: 1; }
.brandbar a { color: #cfe0f5; text-decoration: none; font-size: 13px; }
.brandbar a:hover { color: #fff; }

/* --------------------------------------------------------------- 问卷主体 */
.wrap { max-width: 680px; margin: 0 auto; padding: 0 16px 40px; }

.intro {
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 22px 18px 26px;
}
.intro h1 { margin: 0 0 8px; font-size: 22px; line-height: 1.35; }
.intro p { margin: 0; color: #c8d6e8; font-size: 14px; }
.intro .tags { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 8px; }
.intro .tag {
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  padding: 3px 11px;
  font-size: 12px;
  color: #e8f0fa;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 16px;
  margin: 14px 0;
}

.q { margin: 0; }
.q-head { display: flex; align-items: baseline; gap: 8px; margin-bottom: 4px; }
.q-index {
  flex: none;
  background: var(--orange-soft);
  color: var(--orange);
  font-weight: 700;
  font-size: 12px;
  border-radius: 6px;
  padding: 2px 7px;
}
.q-title { font-weight: 700; font-size: 16px; }
.q-req { color: var(--err); font-weight: 700; }
.q-tip { color: var(--ink-3); font-size: 13px; margin: 0 0 12px; }

label.fld { display: block; margin: 10px 0 0; }
label.fld > span { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 5px; }
input[type=text], input[type=tel], input[type=email], input[type=number], input[type=date], textarea, select {
  width: 100%;
  padding: 11px 12px;
  font-size: 16px;
  font-family: inherit;
  color: var(--ink);
  background: #fbfcfe;
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: none;
  transition: border-color .15s, background .15s;
}
input:focus, textarea:focus, select:focus { border-color: var(--navy-3); background: #fff; }
textarea { min-height: 84px; resize: vertical; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 520px) { .row2 { grid-template-columns: 1fr; } }

/* 选项卡片 */
.opt-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
@media (min-width: 560px) { .opt-grid.cols3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 360px) { .opt-grid { grid-template-columns: 1fr; } }
.opt {
  position: relative;
  display: block;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  background: #fbfcfe;
  cursor: pointer;
  transition: border-color .12s, background .12s, transform .12s;
}
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt .opt-t { font-weight: 600; font-size: 15px; display: flex; align-items: center; gap: 8px; }
.opt .opt-h { color: var(--ink-3); font-size: 12.5px; margin-top: 3px; }
.opt .tick {
  flex: none;
  width: 18px; height: 18px;
  border: 1.5px solid var(--line);
  border-radius: 50%;
  display: grid; place-items: center;
  background: #fff;
  font-size: 11px;
  color: transparent;
}
.opt .tick.sq { border-radius: 5px; }
.opt:hover { border-color: var(--navy-3); }
.opt.on { border-color: var(--orange); background: var(--orange-soft); }
.opt.on .tick { border-color: var(--orange); background: var(--orange); color: #fff; }

.btn {
  appearance: none;
  border: 0;
  border-radius: 10px;
  padding: 12px 18px;
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  background: var(--orange);
  color: #fff;
}
.btn:disabled { opacity: .55; cursor: default; }
.btn.ghost { background: #fff; color: var(--navy-2); border: 1px solid var(--line); font-weight: 600; }
.btn.dark { background: var(--navy); }
.btn.sm { padding: 7px 12px; font-size: 13px; border-radius: 8px; }
.btn-block { display: block; width: 100%; }

.err-text { color: var(--err); font-size: 13px; margin-top: 8px; min-height: 0; }
.field-err { border-color: var(--err) !important; }

.notice {
  border-left: 4px solid var(--warn);
  background: #fffaf0;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13.5px;
  color: #6b5210;
  margin: 10px 0;
}
.notice.info { border-left-color: var(--navy-3); background: #eef5fc; color: #1a3d63; }

.foot { color: var(--ink-3); font-size: 12.5px; text-align: center; padding: 6px 16px 30px; }

/* 成功页 */
.done { text-align: center; padding: 30px 18px; }
.done .ring {
  width: 66px; height: 66px; border-radius: 50%;
  background: #e8f7ee; color: var(--ok);
  display: grid; place-items: center; margin: 0 auto 14px;
  font-size: 30px; font-weight: 700;
}
.done h2 { margin: 0 0 6px; font-size: 20px; }
.done p { margin: 0; color: var(--ink-2); font-size: 14px; }
.done .sum { margin: 18px auto 0; text-align: left; max-width: 420px; background: #f7f9fc; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.done .sum div { display: flex; justify-content: space-between; gap: 12px; font-size: 13.5px; padding: 3px 0; }
.done .sum b { color: var(--navy-2); font-weight: 600; }

/* ------------------------------------------------------------- 后台通用 */
.admin-main { max-width: 1220px; margin: 0 auto; padding: 16px; }
.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 14px; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.kpi .k-label { color: var(--ink-3); font-size: 12.5px; }
.kpi .k-value { font-size: 26px; font-weight: 800; color: var(--navy); line-height: 1.25; }
.kpi .k-sub { font-size: 12px; color: var(--ink-2); }

.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 12px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; margin-bottom: 12px; }
.panel h3 { margin: 0 0 12px; font-size: 15px; color: var(--navy); display: flex; align-items: center; gap: 8px; }
.panel h3::before { content: ""; width: 4px; height: 15px; background: var(--orange); border-radius: 2px; }

.bar-row { display: grid; grid-template-columns: 108px 1fr 92px; align-items: center; gap: 10px; margin: 7px 0; font-size: 13px; }
.bar-row > span:first-child { font-size: 12.5px; line-height: 1.35; }
.bar-track { display: block; background: #eef1f5; border-radius: 999px; height: 14px; overflow: hidden; }
.bar-fill { display: block; height: 100%; border-radius: 999px; background: var(--navy-3); transition: width .35s ease; }
.bar-fill.o { background: var(--orange); }
.bar-val { color: var(--ink-2); text-align: right; font-variant-numeric: tabular-nums; }

.spark { width: 100%; height: 84px; display: block; }
.spark .col { fill: var(--navy-3); }
.spark .col.hi { fill: var(--orange); }
.spark text { font-size: 9px; fill: var(--ink-3); }

.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-end; }
.filters .f { display: flex; flex-direction: column; gap: 4px; }
.filters .f span { font-size: 12px; color: var(--ink-3); }
.filters input, .filters select { font-size: 14px; padding: 8px 10px; width: auto; min-width: 120px; }

table.grid { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.grid th, table.grid td { padding: 9px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
table.grid th { background: #f6f8fb; color: var(--ink-2); font-weight: 600; white-space: nowrap; position: sticky; top: 0; z-index: 1; }
table.grid tr:hover td { background: #fbfcfe; }
.chips { display: flex; flex-wrap: wrap; gap: 4px; }
.chip { background: #eef4fb; color: var(--navy-2); border-radius: 6px; padding: 1px 7px; font-size: 12px; white-space: nowrap; }
.chip.o { background: var(--orange-soft); color: var(--orange); }
.pill { border-radius: 999px; padding: 2px 9px; font-size: 12px; font-weight: 600; color: #fff; white-space: nowrap; }
.table-scroll { overflow: auto; max-height: 620px; border: 1px solid var(--line); border-radius: 10px; }
.muted { color: var(--ink-3); }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.pager { display: flex; gap: 8px; align-items: center; justify-content: flex-end; margin-top: 10px; font-size: 13px; }
select.status-pick { font-size: 12.5px; padding: 4px 6px; width: auto; }

/* 登录页 */
.login-shell { min-height: 74vh; display: grid; place-items: center; padding: 24px 16px; }
.login-box { width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); padding: 26px 22px; }
.login-box h2 { margin: 0 0 4px; font-size: 19px; color: var(--navy); }
.login-box p { margin: 0 0 18px; color: var(--ink-3); font-size: 13.5px; }

/* 二维码物料 */
.qr-shell { max-width: 1000px; margin: 0 auto; padding: 16px; display: grid; grid-template-columns: 380px 1fr; gap: 14px; }
@media (max-width: 820px) { .qr-shell { grid-template-columns: 1fr; } }
.qr-stage { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 18px; text-align: center; box-shadow: var(--shadow); }
.qr-stage svg { max-width: 100%; height: auto; }
.poster {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 62%, var(--navy-3) 100%);
  color: #fff;
  border-radius: 16px;
  padding: 22px;
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 18px;
  align-items: center;
}
.poster h2 { margin: 0 0 8px; font-size: 23px; line-height: 1.3; }
.poster p { margin: 0 0 12px; color: #cdddF0; font-size: 14px; }
.poster .plist { display: flex; flex-wrap: wrap; gap: 7px; }
.poster .plist span { background: rgba(255,255,255,.14); border-radius: 999px; padding: 3px 11px; font-size: 12.5px; }
.poster .qbox { background: #fff; border-radius: 12px; padding: 12px; }
.poster .qbox .cap { color: var(--navy); font-size: 12px; margin-top: 6px; font-weight: 600; }
@media print {
  .brandbar, .no-print, .foot { display: none !important; }
  body { background: #fff; }
  .qr-shell { display: block; padding: 0; }
  .qr-stage { border: 0; box-shadow: none; }
  .poster { break-inside: avoid; }
}