/* ============================================
   KSL 职业卫生计算工具箱 专用样式
   ============================================ */

.tools-hero {
  padding: 160px 0 56px;
  background: linear-gradient(160deg, #F0FAF4, #FFFFFF);
  text-align: center;
}
.tools-hero h1 { margin-bottom: 12px; }
.tools-hero > .container > p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 760px;
  margin: 0 auto 24px;
}
.tools-hero-meta {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.tools-hero-meta div { text-align: center; }
.tools-hero-meta b {
  display: block;
  font-size: 1.8rem;
  color: var(--color-primary);
  line-height: 1.2;
}
.tools-hero-meta span { font-size: 0.9rem; color: var(--color-text-secondary); }

.tools-notice {
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}
.tools-notice strong { color: var(--color-text); }

/* 工具栏 */
.tools-toolbar {
  position: sticky;
  top: var(--nav-height);
  z-index: 50;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.tools-toolbar .container {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  flex-wrap: wrap;
}
.tools-search {
  flex: 1;
  min-width: 220px;
  position: relative;
}
.tools-search input {
  width: 100%;
  padding: 10px 14px 10px 38px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: var(--font-family);
  background: var(--color-bg-alt);
}
.tools-search input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-white);
}
.tools-search::before {
  content: "🔍";
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  opacity: 0.6;
}
.cat-filter { display: flex; gap: 8px; flex-wrap: wrap; }
.cat-btn {
  padding: 7px 14px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-text-secondary);
  border-radius: 999px;
  font-size: 0.88rem;
  cursor: pointer;
  font-family: var(--font-family);
  transition: var(--transition-fast);
}
.cat-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.cat-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
}
.tools-count {
  font-size: 0.88rem;
  color: var(--color-text-light);
  white-space: nowrap;
}

/* 工具卡片 */
.tool-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 20px;
  align-items: start;
}
.tool-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.tool-card:hover { box-shadow: var(--shadow-md); border-color: var(--color-primary-light); }
.tool-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
}
.tool-head h3 { font-size: 1.08rem; }
.tool-cat {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  white-space: nowrap;
  font-weight: 600;
}
.tool-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin: 10px 0 14px;
  line-height: 1.7;
}
.tool-wrap { display: none; }
.tool-card.open .tool-wrap { display: block; }
.tool-card.open .tool-desc { color: var(--color-text-light); }

.tool-fields {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
}
.tool-field { display: flex; flex-direction: column; gap: 5px; }
.tool-field label { font-size: 0.82rem; color: var(--color-text-secondary); font-weight: 500; }
.tool-field input, .tool-field select {
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font-family);
  background: var(--color-bg-alt);
  color: var(--color-text);
  width: 100%;
}
.tool-field input:focus, .tool-field select:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-white);
}
.tool-hint { font-size: 0.72rem; color: var(--color-text-light); line-height: 1.5; }

.tool-result {
  margin-top: 16px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}
.tool-result-empty { font-size: 0.88rem; color: var(--color-text-light); }
.tool-result-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}
.tool-out {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 0;
  font-size: 0.88rem;
  border-bottom: 1px dashed var(--color-border);
}
.tool-out:last-of-type { border-bottom: none; }
.tool-out span { color: var(--color-text-secondary); }
.tool-out b { color: var(--color-text); text-align: right; word-break: break-all; }
.tool-note {
  font-size: 0.78rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--color-border);
}
.tool-std {
  margin-top: 12px;
  font-size: 0.76rem;
  color: var(--color-text-light);
  line-height: 1.7;
}
.tool-std strong { color: var(--color-text-secondary); }
.tool-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 0;
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.tools-cta-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 32px;
}
.tools-cta-list .card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
}
.tools-cta-list h3 { font-size: 1.05rem; margin-bottom: 8px; }
.tools-cta-list p { font-size: 0.88rem; color: var(--color-text-secondary); margin-bottom: 14px; }

@media (max-width: 768px) {
  .tool-list { grid-template-columns: 1fr; }
  .tool-fields { grid-template-columns: 1fr; }
  .tools-toolbar { position: static; }
  .tools-toolbar .container { flex-direction: column; align-items: stretch; }
  .tools-hero { padding: 120px 0 40px; }
}