/* 打印机培训在线答题系统 · 样式
   设计对齐现有培训 PPT：深蓝 #1F3864 / 蓝 #2F5597 / 浅底 #F4F7FC / 微软雅黑
   仅针对 PC（1280px 起），不做手机适配。 */

:root {
  --navy: #1f3864;
  --blue: #2f5597;
  --sky: #5b8dd4;
  --light: #f4f7fc;
  --line: #d3dceb;
  --gray: #595959;
  --mid: #808080;
  --ok: #2e7d32;
  --bad: #c62828;
  --warn: #ef6c00;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Segoe UI", sans-serif;
  color: #1f1f1f;
  background: #eef2f8;
  font-size: 14px;
}

.hidden { display: none !important; }

button {
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--navy);
  padding: 8px 16px;
  border-radius: 4px;
  transition: background .12s, border-color .12s;
}
button:hover { background: var(--light); border-color: var(--sky); }
button.primary {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
  font-weight: 600;
}
button.primary:hover { background: var(--navy); border-color: var(--navy); }
button.big { padding: 12px 28px; font-size: 16px; }
button:disabled { opacity: .5; cursor: not-allowed; }

input, select {
  font-family: inherit;
  font-size: 14px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: #1f1f1f;
  background: #fff;
  outline: none;
  width: 100%;
}
input:focus, select:focus { border-color: var(--sky); }

/* ---------------------------------------------------------------- 入口 */

#view-entry {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1f3864 0%, #24406f 55%, #2f5597 100%);
  padding: 40px 20px;
}

.entry-card {
  width: 460px;
  background: #fff;
  border-radius: 8px;
  padding: 38px 40px 32px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, .28);
}
.entry-card .brand {
  color: var(--sky);
  font-size: 12px;
  letter-spacing: 1.5px;
  margin-bottom: 10px;
}
.entry-card h1 {
  margin: 0 0 8px;
  font-size: 26px;
  color: var(--navy);
  letter-spacing: 1px;
}
.entry-card .sub {
  margin: 0 0 24px;
  color: var(--gray);
  font-size: 13px;
  line-height: 1.7;
}
.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 13px;
  color: var(--navy);
  font-weight: 600;
  margin-bottom: 6px;
}
.seg { display: flex; gap: 8px; }
.seg button { flex: 1; }
.seg button.on {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
  font-weight: 600;
}
.hint {
  margin: 20px 0 0;
  font-size: 12px;
  color: var(--mid);
  line-height: 1.7;
  border-top: 1px dashed var(--line);
  padding-top: 14px;
}
.err {
  margin: 14px 0 0;
  padding: 10px 12px;
  background: #fdecea;
  border-left: 3px solid var(--bad);
  color: var(--bad);
  font-size: 13px;
  border-radius: 3px;
}

/* ---------------------------------------------------------------- 答题 */

#view-exam {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--light);
}

.exam-top {
  height: 60px;
  flex: 0 0 60px;
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 18px;
}
.exam-top .exam-title { font-size: 16px; font-weight: 600; letter-spacing: .5px; }
.exam-top .exam-meta { font-size: 12.5px; color: #b9c8e2; }
.exam-top .spacer { flex: 1; }
.exam-top .timer {
  font-size: 19px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
  background: rgba(255, 255, 255, .12);
  padding: 4px 14px;
  border-radius: 4px;
}
.exam-top .timer.warn { background: var(--warn); }
.exam-top .timer.danger { background: var(--bad); }

.exam-body {
  flex: 1;
  display: flex;
  gap: 18px;
  padding: 18px 24px 24px;
  align-items: stretch;
  min-height: 0;
}

.q-pane {
  flex: 1;
  min-width: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 26px 34px 20px;
  display: flex;
  flex-direction: column;
}

.q-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.q-no {
  font-size: 26px;
  font-weight: 700;
  color: var(--blue);
  line-height: 1;
}
.q-type {
  font-size: 12px;
  color: #fff;
  background: var(--sky);
  border-radius: 3px;
  padding: 2px 8px;
}
.q-chap { font-size: 12px; color: var(--mid); margin-left: auto; }

.q-stem {
  font-size: 18px;
  line-height: 1.75;
  color: #1f1f1f;
  margin-bottom: 22px;
  font-weight: 600;
}

.q-body {
  flex: 0 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding-right: 4px;
  padding-top: 4px;
}

/* 题目配图 */
.q-img {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto 18px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fafafa;
  text-align: center;
}
.q-img img {
  max-width: 100%;
  max-height: 380px;
  border-radius: 4px;
  cursor: zoom-in;
  display: inline-block;
}
.q-img figcaption { margin-top: 8px; font-size: 12px; color: var(--mid); }

.mask.zoom {
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  padding: 24px;
}
.mask.zoom img {
  max-width: 92vw;
  max-height: 92vh;
  border-radius: 6px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .45);
  background: #fff;
}

.opt {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 15px 18px;
  margin-bottom: 12px;
  cursor: pointer;
  background: #fff;
  transition: border-color .12s, background .12s;
}
.opt:hover { border-color: var(--sky); background: #fafcff; }
.opt.on { border-color: var(--blue); background: #eaf1fb; }
.opt .key {
  flex: 0 0 24px;
  height: 24px;
  line-height: 22px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 12px;
  color: var(--mid);
  background: #fff;
}
.opt.on .key { background: var(--blue); border-color: var(--blue); color: #fff; }
.opt .txt { line-height: 1.7; font-size: 15px; }

.match-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}
.match-row .left {
  flex: 0 0 300px;
  font-weight: 600;
  color: var(--navy);
}
.match-row select { flex: 1; max-width: 320px; }

.order-row {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 10px 14px;
  margin-bottom: 8px;
  background: #fff;
}
.order-row .idx {
  flex: 0 0 24px;
  height: 24px;
  line-height: 22px;
  text-align: center;
  border-radius: 50%;
  background: var(--light);
  color: var(--blue);
  font-weight: 700;
  font-size: 12px;
}
.order-row .txt { flex: 1; }
.order-row .mv { display: flex; gap: 6px; }
.order-row .mv button { padding: 4px 10px; font-size: 13px; }

/* 填空题 */
.fill-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.fill-idx {
  flex: 0 0 auto;
  color: var(--blue);
  font-weight: 600;
  font-size: 14px;
}
.fill-input {
  flex: 1;
  max-width: 460px;
  font-size: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 5px;
  outline: none;
  transition: border-color .12s, box-shadow .12s;
}
.fill-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(47, 85, 151, .12);
}
.fill-tip { margin-top: 18px; font-size: 12.5px; color: var(--mid); }

.q-nav {
  display: flex;
  gap: 10px;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 14px;
  margin-top: 14px;
  flex: 0 0 auto;
}
.q-nav button { min-height: 38px; }
.q-nav .spacer { flex: 1; }
.q-nav button.marked { background: #fff4e5; border-color: var(--warn); color: var(--warn); }

.card-pane {
  flex: 0 0 320px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 14px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.card-title span { font-size: 12.5px; color: var(--mid); font-weight: 400; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(38px, 1fr));
  gap: 8px;
  align-content: start;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding-right: 4px;
}
.cell {
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  color: var(--gray);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: transform .08s;
}
.cell:hover { transform: translateY(-1px); border-color: var(--sky); }
.cell.done { background: #e3edfa; border-color: var(--sky); color: var(--blue); font-weight: 600; }
.cell.marked::after {
  content: "";
  position: absolute;
  top: 3px;
  right: 3px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warn);
}
.cell.cur { outline: 2px solid var(--navy); outline-offset: 1px; }

.legend {
  margin-top: auto;
  padding-top: 16px;
  font-size: 12px;
  color: var(--mid);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.legend i {
  width: 11px;
  height: 11px;
  border-radius: 3px;
  display: inline-block;
  border: 1px solid var(--line);
}
.legend .lg-done { background: #e3edfa; border-color: var(--sky); }
.legend .lg-mark { background: #fff4e5; border-color: var(--warn); }
.legend .lg-todo { background: #fff; }

/* ---------------------------------------------------------------- 交卷确认 */

.mask {
  position: fixed;
  inset: 0;
  background: rgba(20, 32, 58, .55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}
.dialog {
  width: 420px;
  background: #fff;
  border-radius: 8px;
  padding: 26px 28px 22px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .3);
}
.dialog h3 {
  margin: 0 0 10px;
  font-size: 18px;
  color: var(--navy);
}
.dialog p {
  margin: 0 0 22px;
  font-size: 14px;
  color: var(--gray);
  line-height: 1.75;
}
.cf-actions { display: flex; justify-content: flex-end; gap: 10px; }

/* ---------------------------------------------------------------- 成绩单 */

#view-result {
  min-height: 100%;
  background: var(--light);
  padding: 28px 24px 40px;
}
.result-wrap { max-width: 1040px; margin: 0 auto; }

.result-head {
  background: var(--navy);
  color: #fff;
  border-radius: 6px;
  padding: 26px 32px;
  display: flex;
  align-items: center;
  gap: 30px;
}
.result-head .big {
  font-size: 54px;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.result-head .big small { font-size: 18px; font-weight: 400; color: #b9c8e2; }
.result-head .who { font-size: 14px; line-height: 1.9; color: #dbe4f3; }
.result-head .who b { color: #fff; font-size: 16px; }
.result-head .rate {
  margin-left: auto;
  text-align: right;
  font-size: 13px;
  color: #b9c8e2;
  line-height: 1.9;
}
.result-head .rate b { font-size: 22px; color: #fff; }

.mod-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 16px 0 20px;
}
.mod {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 16px 18px;
}
.mod .mname { font-size: 13px; color: var(--gray); margin-bottom: 6px; }
.mod .mscore { font-size: 22px; font-weight: 700; color: var(--navy); }
.mod .mscore small { font-size: 13px; color: var(--mid); font-weight: 400; }
.bar { height: 6px; background: var(--light); border-radius: 3px; margin-top: 10px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--blue); }

.section-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  margin: 26px 0 12px;
  padding-left: 10px;
  border-left: 4px solid var(--blue);
}

.wrong-item {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--bad);
  border-radius: 5px;
  padding: 16px 20px;
  margin-bottom: 12px;
}
.wrong-item .wq { font-weight: 600; line-height: 1.7; margin-bottom: 10px; }
.wrong-item .line { font-size: 13px; line-height: 1.85; color: var(--gray); }
.wrong-item .line b { color: var(--navy); }
.wrong-item .your { color: var(--bad); }
.wrong-item .right { color: var(--ok); }
.wrong-item .exp {
  margin-top: 10px;
  padding: 10px 12px;
  background: var(--light);
  border-radius: 4px;
  font-size: 13px;
  line-height: 1.8;
  color: #333;
}
.wrong-item .ref { margin-top: 8px; font-size: 12px; color: var(--mid); }

.all-right {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--ok);
  border-radius: 5px;
  padding: 22px;
  color: var(--ok);
  font-weight: 600;
}

.result-actions { display: flex; gap: 10px; margin-top: 24px; }

/* ---------------------------------------------------------------- 管理端 */

.admin-wrap { max-width: 1240px; margin: 0 auto; padding: 26px 24px 50px; }
.admin-top {
  background: var(--navy);
  color: #fff;
  padding: 18px 24px;
  border-radius: 6px 6px 0 0;
  display: flex;
  align-items: center;
  gap: 16px;
}
.admin-top h1 { margin: 0; font-size: 17px; font-weight: 600; }
.admin-bar {
  background: #fff;
  border: 1px solid var(--line);
  border-top: none;
  padding: 14px 24px;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
.admin-bar select { width: 240px; }
table.rec {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--line);
  border-top: none;
  font-size: 13px;
}
table.rec th {
  background: var(--navy);
  color: #fff;
  font-weight: 600;
  text-align: left;
  padding: 10px 12px;
  white-space: nowrap;
}
table.rec td { padding: 9px 12px; border-top: 1px solid var(--line); }
table.rec tr:nth-child(even) td { background: #fafcff; }
table.rec .num { font-variant-numeric: tabular-nums; }
table.rec .pass { color: var(--ok); font-weight: 600; }
table.rec .fail { color: var(--bad); font-weight: 600; }
.tag {
  display: inline-block;
  font-size: 11.5px;
  padding: 1px 7px;
  border-radius: 3px;
  background: #eef2f8;
  color: var(--gray);
}
.tag.warn { background: #fff4e5; color: var(--warn); }

/* ---------------------------------------------------------------- 打印 */

@media print {
  body { background: #fff; }
  #view-result { padding: 0; background: #fff; }
  .result-actions, .no-print { display: none !important; }
  .result-head { background: #fff !important; color: #000 !important; border: 1px solid #999; }
  .result-head .who, .result-head .rate, .result-head .big small { color: #333 !important; }
  .result-head .who b, .result-head .rate b, .result-head .big { color: #000 !important; }
  .mod, .wrong-item, .all-right { border-color: #999; break-inside: avoid; }
  .bar { border: 1px solid #999; }
  .bar > i { background: #666 !important; }
  .wrong-item { border-left-color: #000; }
  .section-title { border-left-color: #000; color: #000; }
  .wrong-item .exp { background: #f2f2f2 !important; }
}