/* BIOSPro 软件库 */
:root {
  --bg-deep: #050816;
  --bg-main: #0B1220;
  --card: #131D33;
  --primary: #22D3EE;
  --primary-dim: #06B6D4;
  --text: #FFFFFF;
  --text-muted: #94A3B8;
  --border: rgba(34, 211, 238, 0.15);
  --radius: 12px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  min-height: -webkit-fill-available;
  overflow-x: hidden;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: #67e8f9; }

.tools-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.tools-bg-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, rgba(34, 211, 238, 0.14), transparent),
    linear-gradient(180deg, #050816 0%, #0B1220 100%);
}

.tools-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 85%);
}

.tools-header {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 18, 32, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .tools-header { background: rgba(11, 18, 32, 0.98); }
}

.tools-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.tools-logo {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  color: var(--text);
  font-weight: 800;
}

.tools-logo-main { letter-spacing: 0.08em; }
.tools-logo-accent {
  background: linear-gradient(135deg, #06B6D4, #22D3EE);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.tools-logo-sub {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-left: 0.15rem;
}

.tools-nav {
  display: flex;
  gap: 1rem;
  font-size: 0.9rem;
}

.tools-nav a {
  color: var(--text-muted);
}

.tools-nav a.active,
.tools-nav a:hover {
  color: var(--primary);
}

.tools-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 1rem 2.5rem;
}

.tools-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.25rem;
  align-items: start;
}

.tools-sidebar {
  position: sticky;
  top: 4.5rem;
  background: rgba(19, 29, 51, 0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

.tools-sidebar-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.tools-categories {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.tools-cat-link {
  display: block;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: background 0.15s, color 0.15s;
}

.tools-cat-link:hover,
.tools-cat-link.is-active {
  background: rgba(34, 211, 238, 0.1);
  color: var(--primary);
}

.tools-sidebar-hint {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.tools-content {
  min-width: 0;
}

.tools-content-full {
  grid-column: 1 / -1;
}

.tools-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.tools-search {
  display: flex;
  flex: 1 1 280px;
  max-width: 480px;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: rgba(11, 18, 32, 0.8);
}

.tools-search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
}

.tools-search button {
  border: 0;
  background: rgba(34, 211, 238, 0.15);
  color: var(--primary);
  padding: 0.65rem 1rem;
  font-weight: 600;
  cursor: pointer;
}

.tools-count {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.85rem;
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1rem;
  background: rgba(19, 29, 51, 0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s;
  min-width: 0;
}

.tool-card:hover {
  border-color: rgba(34, 211, 238, 0.35);
  transform: translateY(-2px);
}

.tool-card-protected {
  border-color: rgba(251, 191, 36, 0.25);
}

.tool-card-icon img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 10px;
}

.tool-card-name {
  font-size: 1rem;
  font-weight: 700;
}

.tool-card-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
  flex: 1;
}

.tool-card-badge {
  display: inline-block;
  font-size: 0.68rem;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.15);
  color: var(--primary);
  width: fit-content;
}

.tool-card-download {
  display: block;
  text-align: center;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  background: rgba(34, 211, 238, 0.12);
  border: 1px solid rgba(34, 211, 238, 0.25);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.88rem;
}

.tool-card-download:hover {
  background: rgba(34, 211, 238, 0.2);
  color: #fff;
}

.tools-empty {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--text-muted);
}

.tools-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 1rem 1.75rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.tools-footer p + p { margin-top: 0.35rem; }

.tools-gate {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 50vh;
  padding: 2rem 0;
}

.tools-gate-card {
  width: min(420px, 100%);
  padding: 1.75rem;
  background: rgba(19, 29, 51, 0.92);
  border: 1px solid var(--border);
  border-radius: 16px;
  text-align: center;
}

.tools-gate-card h1 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.tools-gate-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.tools-gate-error {
  color: #f87171 !important;
}

.tools-gate-form {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.tools-gate-form input {
  padding: 0.7rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-main);
  color: var(--text);
}

.tools-gate-form button {
  padding: 0.7rem;
  border: 0;
  border-radius: 8px;
  background: linear-gradient(135deg, #06B6D4, #22D3EE);
  color: #041018;
  font-weight: 700;
  cursor: pointer;
}

@media (max-width: 768px) {
  .tools-shell {
    grid-template-columns: 1fr;
  }

  .tools-sidebar {
    position: static;
  }

  .tools-categories {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .tools-cat-link {
    font-size: 0.82rem;
    padding: 0.45rem 0.6rem;
  }

  .tools-search {
    max-width: none;
    width: 100%;
  }

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