.notebook-page {
  min-height: 100vh;
  background:
    linear-gradient(rgba(76, 61, 39, .04) 1px, transparent 1px) 0 0 / 100% 26px,
    #e4dfd3;
  color: #292820;
  font-family: "Microsoft YaHei", SimSun, sans-serif;
}

.notebook-header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  padding: 27px max(24px, calc((100% - 1120px) / 2)) 22px;
  border-bottom: 5px solid #293a46;
  background: #f5f0e4;
  box-shadow: 0 3px 12px rgba(51, 43, 31, .16);
}

.notebook-header p,
.notebook-header h1 {
  margin: 0;
}

.notebook-header p {
  color: #977b48;
  font: 10px/1.4 "Courier New", monospace;
  letter-spacing: 4px;
}

.notebook-header h1 {
  margin-top: 3px;
  font-family: STSong, SimSun, serif;
  font-size: 31px;
  letter-spacing: 5px;
}

.notebook-header nav {
  display: flex;
  gap: 10px;
  align-items: center;
}

.notebook-header nav a,
.notebook-header nav button {
  padding: 7px 12px;
  border: 1px solid #6d6a60;
  background: transparent;
  color: #333;
  font-size: 12px;
  text-decoration: none;
}

.notebook-main {
  width: min(1120px, calc(100% - 36px));
  margin: 28px auto 60px;
}

.notebook-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px 22px;
  padding: 21px 25px;
  border: 1px solid #afa58f;
  border-left: 7px solid #9e3f34;
  background: rgba(255, 252, 244, .92);
  box-shadow: 2px 3px 0 rgba(84, 71, 49, .12);
}

.notebook-label,
.notebook-section-heading p {
  margin: 0;
  color: #997b45;
  font: 10px/1.5 "Courier New", monospace;
  letter-spacing: 3px;
}

.notebook-summary h2,
.notebook-section-heading h2 {
  margin: 2px 0 0;
  color: #293a46;
  font-size: 20px;
}

.notebook-progress-copy {
  align-self: center;
  color: #293a46;
}

.notebook-progress-copy strong {
  font: 31px/1 "Courier New", monospace;
}

.notebook-progress-copy span {
  color: #706c62;
}

.notebook-progress-track {
  grid-column: 1 / -1;
  height: 7px;
  overflow: hidden;
  background: #d8d1c2;
}

.notebook-progress-track span {
  display: block;
  width: 0;
  height: 100%;
  background: #9e3f34;
  transition: width .25s ease;
}

.notebook-summary > [data-progress-message] {
  grid-column: 1 / -1;
  margin: 2px 0 0;
  color: #6d675d;
  font-size: 12px;
}

.notebook-columns {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .65fr);
  gap: 28px;
  margin-top: 29px;
  align-items: start;
}

.notebook-section-heading {
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid #293a46;
}

.case-list {
  display: grid;
  gap: 14px;
}

.case-card {
  position: relative;
  padding: 18px 20px 17px;
  border: 1px solid #b7ad99;
  background: #fffdf7;
  box-shadow: 2px 3px 0 rgba(84, 71, 49, .1);
}

.case-card::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 27px;
  width: 62px;
  height: 13px;
  background: rgba(207, 183, 126, .5);
  transform: rotate(-1.8deg);
}

.case-card-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.case-card h3 {
  margin: 0;
  color: #263b49;
  font-size: 17px;
}

.case-status {
  flex: 0 0 auto;
  padding: 2px 8px;
  border: 1px solid #9f9582;
  color: #706858;
  font-size: 11px;
}

.case-card.is-solved .case-status {
  border-color: #5e7c6d;
  background: #e5eee7;
  color: #365b47;
}

.case-card.is-unknown {
  min-height: 132px;
  color: rgba(33, 39, 45, .52);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, .72), rgba(237, 239, 238, .72)),
    repeating-linear-gradient(0deg, transparent 0 22px, rgba(37, 45, 52, .04) 22px 23px);
}

.case-card.is-unknown::before {
  background: #8c9295;
}

.case-card.is-unknown h3 {
  color: #666d71;
  letter-spacing: .32em;
}

.case-card.is-unknown p {
  margin: 22px 0 2px;
  font-size: 13px;
}

.notebook-direction {
  grid-column: 1 / -1;
  width: 100%;
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px dashed #a7773b;
  background: #fff7dc;
}

.notebook-direction-label {
  color: #654818;
  font-weight: 700;
  font-size: 13px;
}

.notebook-direction button {
  padding: 7px 13px;
  border: 1px solid #8c611d;
  background: #9b6b20;
  color: #fff;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.notebook-direction button:hover,
.notebook-direction button:focus-visible {
  background: #754d11;
}

.notebook-direction button:disabled {
  cursor: default;
  opacity: .72;
}

.notebook-direction p {
  flex-basis: 100%;
  overflow-wrap: anywhere;
  margin: 0;
  padding-top: 9px;
  border-top: 1px solid rgba(140, 97, 29, .24);
  color: #4d3c20;
  font-size: 13px;
}

.case-source {
  margin: 8px 0 12px;
  color: #6f6a61;
  font-size: 12px;
}

.case-hints {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed #c2b9a8;
}

.case-hints p {
  margin: 6px 0 0;
  padding: 7px 9px;
  background: #f2ede2;
  color: #4f4c45;
  font-size: 13px;
}

.case-hints button {
  padding: 4px 10px;
  border: 1px solid #8f8470;
  background: transparent;
  color: #544c3f;
  font-size: 12px;
}

.evidence-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.evidence-list li {
  margin-bottom: 10px;
  padding: 12px 13px;
  border-left: 4px solid #99804d;
  background: rgba(255, 252, 244, .86);
  box-shadow: 1px 2px 0 rgba(84, 71, 49, .08);
}

.evidence-list strong,
.evidence-list span {
  display: block;
}

.evidence-list strong {
  color: #2d414e;
  font-size: 14px;
}

.evidence-list span {
  margin-top: 3px;
  color: #746f65;
  font-size: 12px;
}

.evidence-list .empty-record {
  border-left-color: #aaa397;
  color: #777167;
}

@media (max-width: 720px) {
  .notebook-header {
    align-items: stretch;
    flex-direction: column;
    padding: 20px 18px 16px;
  }

  .notebook-header nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .notebook-header nav a,
  .notebook-header nav button {
    text-align: center;
  }

  .notebook-main {
    width: calc(100% - 24px);
    margin-top: 18px;
  }

  .notebook-columns {
    grid-template-columns: 1fr;
  }

  .notebook-summary {
    padding: 17px 16px;
  }
}