.devc-submit-box {
  margin: 32px 0 8px;
  padding: 20px;
  border: 1px solid rgba(127, 127, 127, 0.28);
  border-radius: 12px;
  background: rgba(127, 127, 127, 0.06);
  font-size: 15px;
  line-height: 1.7;
}

.devc-submit-lead {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}

.devc-submit-btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 8px;
  background: #0a64b4;
  color: #fff !important;
  font-weight: 600;
  text-decoration: none !important;
  transition: background 0.18s ease, transform 0.18s ease;
}

.devc-submit-btn:hover {
  background: #08508f;
  transform: translateY(-1px);
}

.devc-submit-hint {
  margin: 10px 0 0;
  font-size: 13px;
  opacity: 0.72;
}

.devc-submit-hint a {
  text-decoration: underline;
}

.devc-board-title {
  margin: 22px 0 10px;
  font-size: 16px;
  font-weight: 600;
}

.devc-board {
  overflow-x: auto;
}

.devc-board-empty {
  font-size: 13px;
  opacity: 0.65;
  padding: 8px 0;
}

.devc-board table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.devc-board th,
.devc-board td {
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid rgba(127, 127, 127, 0.2);
  white-space: nowrap;
}

.devc-board th {
  font-weight: 600;
  opacity: 0.7;
  font-size: 12.5px;
}

.devc-board td.devc-rank {
  width: 46px;
  font-weight: 700;
  color: #0a64b4;
}

.devc-board tr.devc-top1 td.devc-rank {
  color: #d4a017;
}

.devc-board td.devc-name {
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.devc-board td.devc-points {
  font-weight: 700;
}

.devc-guest-tag {
  display: inline-block;
  margin-left: 4px;
  padding: 0 5px;
  border-radius: 8px;
  background: rgba(128, 128, 128, 0.18);
  color: inherit;
  font-size: 10.5px;
  opacity: 0.85;
  vertical-align: 1px;
}

.devc-board td.devc-rate {
  font-weight: 700;
  color: #0a7a4a;
}

.devc-board .devc-num {
  font-family: Consolas, Menlo, monospace;
}

.devc-judge-spec {
  margin: 16px 0 6px;
  padding: 13px 15px;
  border: 1px solid rgba(120, 120, 160, 0.24);
  border-radius: 12px;
  background: rgba(248, 248, 252, 0.92);
  font-size: 13.5px;
  line-height: 1.75;
  color: #4a4a55;
}

.devc-judge-head {
  font-weight: 700;
  margin-bottom: 4px;
  color: #33333d;
}

.devc-judge-spec p {
  margin: 2px 0;
  word-break: break-word;
}

.devc-judge-note,
.devc-judge-pending {
  color: #8a8a96;
  font-size: 12.5px;
}

@media (max-width: 600px) {
  .devc-submit-box {
    margin: 24px 0 0;
    padding: 16px 14px;
  }

  .devc-submit-btn {
    display: block;
    text-align: center;
  }

  .devc-board th,
  .devc-board td {
    padding: 7px 6px;
    font-size: 12.5px;
  }

  .devc-board td.devc-name {
    max-width: 96px;
  }
}

/* ---------------- 关于页：贡献热力图 ---------------- */

.devc-stats-panel {
  --devc-empty: rgba(127, 127, 127, 0.16);
  --devc-l1: #9be9a8;
  --devc-l2: #40c463;
  --devc-l3: #30a14e;
  --devc-l4: #216e39;
  --devc-accent: #216e39;
  margin: 32px 0 8px;
  padding: 20px;
  border: 1px solid rgba(127, 127, 127, 0.28);
  border-radius: 12px;
  background: rgba(127, 127, 127, 0.06);
  font-size: 14px;
}

[data-bs-theme="dark"] .devc-stats-panel {
  --devc-empty: rgba(255, 255, 255, 0.08);
  --devc-l1: #0e4429;
  --devc-l2: #006d32;
  --devc-l3: #26a641;
  --devc-l4: #39d353;
  --devc-accent: #39d353;
}

.devc-stats-head {
  margin-bottom: 14px;
}

.devc-stats-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
}

.devc-stats-sub {
  margin-top: 3px;
  font-size: 12.5px;
  opacity: 0.6;
}

.devc-heatmap-scroll {
  overflow-x: auto;
  padding-bottom: 4px;
}

.devc-heatmap {
  width: max-content;
}

.devc-heatmap-months {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 14px;
  margin-left: 26px;
  height: 16px;
  font-size: 10px;
  line-height: 16px;
  white-space: nowrap;
  opacity: 0.65;
}

.devc-heatmap-main {
  display: flex;
  align-items: flex-start;
  gap: 6px;
}

.devc-heatmap-weekdays {
  display: grid;
  grid-template-rows: repeat(7, 11px);
  row-gap: 3px;
  width: 20px;
  font-size: 9px;
  line-height: 11px;
  text-align: right;
  opacity: 0.65;
}

.devc-heatmap-grid {
  display: grid;
  grid-template-rows: repeat(7, 11px);
  grid-auto-flow: column;
  grid-auto-columns: 11px;
  gap: 3px;
}

.devc-heatmap-cell {
  display: block;
  width: 11px;
  height: 11px;
  border-radius: 2px;
  background: var(--devc-empty);
}

.devc-heatmap-cell.is-empty {
  background: transparent;
}

.devc-heatmap-cell.l1 {
  background: var(--devc-l1);
}

.devc-heatmap-cell.l2 {
  background: var(--devc-l2);
}

.devc-heatmap-cell.l3 {
  background: var(--devc-l3);
}

.devc-heatmap-cell.l4 {
  background: var(--devc-l4);
}

.devc-heatmap-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 10px;
  font-size: 12px;
  opacity: 0.72;
}

.devc-heatmap-legend {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  white-space: nowrap;
}

.devc-heatmap-legend i {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--devc-empty);
}

.devc-heatmap-legend i.l1 {
  background: var(--devc-l1);
}

.devc-heatmap-legend i.l2 {
  background: var(--devc-l2);
}

.devc-heatmap-legend i.l3 {
  background: var(--devc-l3);
}

.devc-heatmap-legend i.l4 {
  background: var(--devc-l4);
}

.devc-stats-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.devc-stat {
  padding: 12px 14px;
  border: 1px solid rgba(127, 127, 127, 0.2);
  border-radius: 10px;
  background: rgba(127, 127, 127, 0.04);
}

.devc-stat-num {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--devc-accent);
}

.devc-stat-label {
  margin-top: 2px;
  font-size: 12px;
  opacity: 0.62;
}

@media (max-width: 600px) {
  .devc-stats-panel {
    margin-top: 24px;
    padding: 16px 14px;
  }
}