/* ========================================
   文档页样式
   ======================================== */

.docs-body {
  background: var(--color-surface);
}

.navbar-docs {
  background: rgba(255, 255, 255, 0.9);
}

.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-ink);
}

/* Layout */
.docs-layout {
  display: flex;
  padding-top: 64px;
  min-height: 100vh;
}

/* Sidebar */
.docs-sidebar {
  width: 280px;
  flex-shrink: 0;
  position: fixed;
  top: 64px;
  left: 0;
  bottom: 0;
  overflow-y: auto;
  background: var(--color-bg);
  border-right: 1px solid var(--color-border-light);
  padding: 20px 0;
  z-index: 50;
}

.docs-sidebar::-webkit-scrollbar {
  width: 4px;
}

.docs-sidebar::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

/* Search */
.sidebar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 16px 16px;
  padding: 8px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}

.sidebar-search:focus-within {
  border-color: var(--color-accent);
}

.sidebar-search svg {
  color: var(--color-ink-muted);
  flex-shrink: 0;
}

.sidebar-search input {
  border: none;
  background: none;
  font-size: 13px;
  font-family: var(--font-sans);
  color: var(--color-ink);
  width: 100%;
  outline: none;
}

.sidebar-search input::placeholder {
  color: var(--color-ink-muted);
}

/* Sidebar Nav */
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-group {
  padding: 0 8px;
  margin-bottom: 8px;
}

.sidebar-group-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
  padding: 12px 12px 6px;
}

.sidebar-link {
  display: block;
  font-size: 13px;
  color: var(--color-ink-secondary);
  padding: 6px 12px;
  border-radius: 6px;
  transition: all var(--transition);
  line-height: 1.5;
}

.sidebar-link:hover {
  color: var(--color-ink);
  background: var(--color-surface);
}

.sidebar-link.active {
  color: var(--color-accent);
  background: var(--color-accent-light);
  font-weight: 600;
}

.sidebar-link.hidden {
  display: none;
}

/* Main Content */
.docs-main {
  flex: 1;
  margin-left: 280px;
  min-width: 0;
}

.docs-content {
  max-width: 980px;
  margin: 0 auto;
  padding: 40px 48px 80px;
}

/* Document Sections */
.doc-section {
  padding-bottom: 48px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--color-border-light);
}

.doc-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.doc-section h1 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}

.doc-section h2 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  margin-top: 36px;
  margin-bottom: 12px;
  padding-top: 8px;
  line-height: 1.4;
}

.doc-section p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-ink-secondary);
  margin-bottom: 12px;
}

.doc-lead {
  font-size: 16px !important;
  color: var(--color-ink) !important;
  line-height: 1.9 !important;
}

.doc-section ul, .doc-section ol {
  padding-left: 20px;
  margin-bottom: 16px;
}

.doc-section li {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-ink-secondary);
  margin-bottom: 6px;
}

.doc-section li strong {
  color: var(--color-ink);
}

/* Callouts */
.doc-callout {
  display: flex;
  gap: 12px;
  background: var(--color-accent-light);
  border: 1px solid rgba(45, 80, 22, 0.15);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin: 20px 0;
}

.doc-callout.info {
  background: #f0f7ff;
  border-color: rgba(59, 130, 246, 0.15);
}

.doc-callout.warning {
  background: #fef3c7;
  border-color: rgba(217, 119, 6, 0.2);
}

.callout-icon {
  font-size: 18px;
  flex-shrink: 0;
  line-height: 1.4;
}

.callout-body strong {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
  color: var(--color-ink);
}

.callout-body p {
  font-size: 14px !important;
  margin: 0 !important;
}

/* Tables */
.doc-table-wrap {
  overflow-x: auto;
  margin: 16px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.doc-table th {
  background: var(--color-bg);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-ink);
  font-size: 13px;
}

.doc-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-ink-secondary);
}

.doc-table tr:last-child td {
  border-bottom: none;
}

.doc-table tr:hover td {
  background: rgba(0,0,0,0.01);
}

/* Tab Preview */
.doc-tabs-preview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 20px 0;
}

.tab-preview {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  transition: all 0.3s ease;
}

.tab-preview:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.tab-icon {
  font-size: 28px;
  margin-bottom: 8px;
}

.tab-preview h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.tab-preview p {
  font-size: 12px !important;
  color: var(--color-ink-muted) !important;
  line-height: 1.5 !important;
  margin: 0 !important;
}

/* Screenshot Flows */
.doc-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 24px 0 28px;
  align-items: start;
}

.doc-flow-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.doc-step {
  margin: 0;
  min-width: 0;
}

.doc-step-shot {
  background: var(--color-ink);
  border-radius: 26px;
  padding: 6px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.12);
}

.doc-step-shot img {
  display: block;
  width: 100%;
  aspect-ratio: 644 / 1400;
  object-fit: cover;
  object-position: top center;
  border-radius: 21px;
  background: var(--color-bg);
}

.doc-step figcaption {
  margin-top: 12px;
}

.doc-step figcaption span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 22px;
  border-radius: 5px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 8px;
}

.doc-step figcaption strong {
  display: block;
  font-size: 14px;
  line-height: 1.45;
  color: var(--color-ink);
  margin-bottom: 4px;
}

.doc-step figcaption em {
  display: block;
  font-style: normal;
  font-size: 12px;
  line-height: 1.65;
  color: var(--color-ink-secondary);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 968px) {
  .sidebar-toggle { display: block; }

  .docs-sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: none;
  }

  .docs-sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }

  .docs-main {
    margin-left: 0;
  }

  .docs-content {
    padding: 32px 24px 64px;
  }

  .doc-tabs-preview {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 640px) {
  .docs-content {
    padding: 24px 16px 48px;
  }

  .doc-section h1 {
    font-size: 24px;
  }

  .doc-section h2 {
    font-size: 18px;
  }

  .doc-tabs-preview {
    grid-template-columns: 1fr;
  }

  .doc-flow,
  .doc-flow-four {
    grid-template-columns: 1fr;
  }

  .doc-step {
    max-width: 260px;
    margin: 0 auto;
  }
}