:root {
  --symbol-line: #d9e2ed;
  --symbol-soft: #f6f9fc;
  --symbol-ink: #243248;
  --symbol-muted: #68778d;
  --symbol-accent: #0f766e;
  --symbol-accent-soft: #ecfdf5;
  --symbol-shadow: 0 20px 48px -34px rgba(16, 45, 80, 0.38);
}

.panel-work {
  overflow: hidden;
}

.symbol-tool,
.symbol-tool * {
  box-sizing: border-box;
}

.symbol-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) repeat(4, minmax(0, 0.5fr));
  gap: 12px;
  align-items: end;
}

.symbol-search label {
  display: block;
  margin-bottom: 8px;
  color: var(--symbol-muted);
  font-size: 13px;
}

.symbol-search input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--symbol-line);
  border-radius: 14px;
  padding: 0 14px;
  background: #fff;
  color: var(--symbol-ink);
  outline: none;
}

.symbol-search input:focus {
  border-color: rgba(15, 118, 110, 0.55);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.1);
}

.symbol-stat {
  min-height: 44px;
  border: 1px solid var(--symbol-line);
  border-radius: 14px;
  background: linear-gradient(180deg, #fff 0%, #f8fbff 100%);
  padding: 10px 12px;
}

.symbol-stat span {
  display: block;
  color: var(--symbol-muted);
  font-size: 12px;
}

.symbol-stat strong {
  display: block;
  margin-top: 5px;
  color: var(--symbol-ink);
  font-size: 18px;
}

.symbol-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.symbol-sidebar,
.symbol-main,
.symbol-tip {
  border: 1px solid var(--symbol-line);
  border-radius: 18px;
  background: linear-gradient(180deg, #fff 0%, #f7fbf9 100%);
  box-shadow: var(--symbol-shadow);
}

.symbol-sidebar,
.symbol-main,
.symbol-tip {
  padding: 16px;
}

.symbol-section-head {
  margin-bottom: 12px;
}

.symbol-section-head h2 {
  margin: 0;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--symbol-ink);
  font-size: 18px;
  text-indent: 0;
}

.symbol-section-head p {
  margin: 6px 0 0;
  color: var(--symbol-muted);
  font-size: 13px;
  line-height: 1.6;
}

.symbol-nav {
  display: grid;
  gap: 8px;
  max-height: 720px;
  overflow: auto;
  padding-right: 4px;
}

.symbol-nav button {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  border: 1px solid #d9e2ed;
  border-radius: 12px;
  background: #fff;
  color: #304155;
  padding: 11px 12px;
  cursor: pointer;
  text-align: left;
  transition: all 0.18s ease;
}

.symbol-nav button:hover,
.symbol-nav button.is-active {
  border-color: rgba(15, 118, 110, 0.42);
  background: var(--symbol-accent-soft);
  color: var(--symbol-accent);
}

.symbol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.symbol-card {
  border: 1px solid #dbe5ef;
  border-radius: 16px;
  background:
    radial-gradient(circle at top right, rgba(15, 118, 110, 0.12), transparent 34%),
    linear-gradient(180deg, #ffffff 0%, #f9fbff 100%);
  padding: 14px;
  text-align: left;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.symbol-card:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 118, 110, 0.42);
  box-shadow: 0 18px 36px -28px rgba(24, 56, 86, 0.42);
}

.symbol-char {
  font-size: 34px;
  line-height: 1;
}

.symbol-name {
  margin-top: 10px;
  color: var(--symbol-ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  word-break: break-word;
}

.symbol-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.symbol-tags span {
  border-radius: 999px;
  background: #f3f7fb;
  color: #5b7391;
  padding: 5px 8px;
  font-size: 12px;
  line-height: 1;
}

.symbol-empty {
  border: 1px dashed #ccd7e5;
  border-radius: 16px;
  background: var(--symbol-soft);
  color: var(--symbol-muted);
  padding: 24px 18px;
  text-align: center;
}

.symbol-notice {
  margin-top: 12px;
  color: var(--symbol-muted);
  font-size: 13px;
}

.symbol-notice.is-ok {
  color: var(--symbol-accent);
}

.symbol-notice.is-warn {
  color: #b45309;
}

.symbol-tip p {
  margin: 0;
  color: var(--symbol-muted);
  font-size: 14px;
  line-height: 1.8;
}

.symbol-tip p + p {
  margin-top: 8px;
}

@media (max-width: 1180px) {
  .symbol-toolbar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .symbol-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .symbol-toolbar {
    grid-template-columns: 1fr;
  }

  .symbol-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .symbol-sidebar,
  .symbol-main,
  .symbol-tip {
    border-radius: 14px;
    padding: 14px;
  }
}

@media (max-width: 420px) {
  .symbol-grid {
    grid-template-columns: 1fr;
  }
}