/* ── Docs 文档站（/support）：顶部全局导航 + 左章节导航 + 中 Markdown 正文 + 右本页目录 ── */

:root {
  --docs-accent: #4f6bff;
  --docs-accent-soft: rgba(79, 107, 255, 0.09);
  --code-bg: #14181f;
  --code-color: #e6e8ee;
  --inline-code-bg: rgba(14, 17, 22, 0.06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --docs-accent: #a5b4fc;
    --docs-accent-soft: rgba(165, 180, 252, 0.1);
    --code-bg: #0c0e13;
    --code-color: #dfe2ea;
    --inline-code-bg: rgba(255, 255, 255, 0.08);
  }
}

.docs-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr) 210px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 96px 32px 64px;
  gap: 0;
  align-items: start;
}

/* ── 首屏：产品选择 ── */
.docs-landing {
  max-width: 1040px;
  margin: 0 auto;
  padding: 150px 32px 80px;
  /* 与产品页 .subpage 同款入场上浮（rise 定义在 site.css） */
  animation: rise 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.product-card-logo {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  margin-bottom: 16px;
  box-shadow: 0 4px 14px rgba(14, 17, 22, 0.12);
}
.docs-landing-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text-primary);
}
.docs-landing-sub {
  margin: 12px 0 40px;
  font-size: 16px;
  color: var(--text-tertiary);
}
.docs-landing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
}
.product-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  padding: 28px 30px;
  border-radius: 18px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--docs-accent);
}
.product-card-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}
.product-card-desc {
  margin: 10px 0 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}
.product-card-meta {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12.5px;
  color: var(--text-tertiary);
}
.product-card-arrow {
  color: var(--docs-accent);
  font-weight: 600;
}
@media (max-width: 820px) {
  .docs-landing { padding-top: 110px; }
  .docs-landing-grid { grid-template-columns: 1fr; }
}

/* ── 左：章节导航 ── */
.docs-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  padding: 5px 10px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-tertiary);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.docs-back:hover { color: var(--text-primary); background: var(--close-bg); }
.docs-product-name {
  padding-left: 10px;
  margin-bottom: 20px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}
.docs-sidebar {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 128px);
  overflow-y: auto;
  padding-right: 22px;
  border-right: 1px solid var(--nav-border);
}
.docs-group { margin-bottom: 26px; }
.docs-group-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-tertiary);
  margin-bottom: 8px;
  padding-left: 10px;
}
.docs-nav-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 7px 10px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-family: inherit;
  line-height: 1.5;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.docs-nav-item:hover { color: var(--text-primary); background: var(--close-bg); }
.docs-nav-item.active {
  background: var(--docs-accent-soft);
  color: var(--docs-accent);
  font-weight: 600;
}

/* ── 中：正文 ── */
.docs-content {
  padding: 0 44px;
  min-width: 0;
}
.markdown-body {
  max-width: 760px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-primary);
}
.docs-loading { color: var(--text-tertiary); }

.markdown-body h1 {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.3;
  margin-bottom: 10px;
}
.markdown-body h2 {
  font-size: 21px;
  font-weight: 600;
  margin: 44px 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--nav-border);
  scroll-margin-top: 90px;
}
.markdown-body h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 30px 0 10px;
  scroll-margin-top: 90px;
}
.markdown-body p { margin: 12px 0; color: var(--text-secondary); }
.markdown-body h1 + p { color: var(--text-tertiary); font-size: 15px; }
.markdown-body strong { color: var(--text-primary); }
.markdown-body a { color: var(--docs-accent); text-decoration: none; }
.markdown-body a:hover { text-decoration: underline; }

.markdown-body ul, .markdown-body ol {
  margin: 12px 0;
  padding-left: 24px;
  color: var(--text-secondary);
}
.markdown-body li { margin: 6px 0; }
.markdown-body li::marker { color: var(--text-tertiary); }

.markdown-body code {
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--inline-code-bg);
  font-family: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  color: var(--text-primary);
}
.markdown-body pre {
  margin: 16px 0;
  padding: 18px 20px;
  border-radius: 14px;
  background: var(--code-bg);
  overflow-x: auto;
}
.markdown-body pre code {
  padding: 0;
  background: transparent;
  color: var(--code-color);
  font-size: 13px;
  line-height: 1.7;
}

.markdown-body blockquote {
  margin: 16px 0;
  padding: 10px 18px;
  border-left: 3px solid var(--docs-accent);
  border-radius: 0 10px 10px 0;
  background: var(--docs-accent-soft);
}
.markdown-body blockquote p { margin: 4px 0; }

.markdown-body table {
  width: 100%;
  margin: 16px 0;
  border-collapse: collapse;
  font-size: 14px;
}
.markdown-body th, .markdown-body td {
  padding: 9px 14px;
  border: 1px solid var(--nav-border);
  text-align: left;
}
.markdown-body th {
  background: var(--close-bg);
  color: var(--text-primary);
  font-weight: 600;
}
.markdown-body td { color: var(--text-secondary); }

.markdown-body hr {
  margin: 32px 0;
  border: none;
  border-top: 1px solid var(--nav-border);
}

/* ── 右：本页目录 ── */
.docs-toc {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 128px);
  overflow-y: auto;
  padding-left: 20px;
  border-left: 1px solid var(--nav-border);
  font-size: 13px;
}
.toc-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-tertiary);
  margin-bottom: 10px;
}
.toc-link {
  display: block;
  padding: 4px 0;
  color: var(--text-secondary);
  text-decoration: none;
  line-height: 1.5;
  border-left: 2px solid transparent;
  margin-left: -21px;
  padding-left: 19px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.toc-link.depth-3 { padding-left: 33px; }
.toc-link:hover { color: var(--text-primary); }
.toc-link.active {
  color: var(--docs-accent);
  border-left-color: var(--docs-accent);
}
.toc-empty { color: var(--text-tertiary); }

/* ── 正文图片 ── */
.markdown-body img {
  max-width: 100%;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  margin: 8px 0;
}

/* ── 文末上一篇 / 下一篇 ── */
.docs-pager {
  margin-top: 56px;
  padding-top: 26px;
  border-top: 1px solid var(--nav-border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.pager-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 20px;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.pager-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--docs-accent);
  text-decoration: none;
}
.pager-card.next { align-items: flex-end; text-align: right; }
.pager-label { font-size: 12px; letter-spacing: 0.1em; color: var(--text-tertiary); }
.pager-title { font-size: 15px; font-weight: 600; color: var(--text-primary); }
.pager-card:hover .pager-title { color: var(--docs-accent); }

/* ── 管理员编辑 ── */
.docs-admin-actions {
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--nav-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.docs-admin-btn {
  padding: 8px 16px;
  border: 1px solid var(--nav-border);
  border-radius: 999px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.docs-admin-btn:hover { color: var(--text-primary); background: var(--close-bg); }
.docs-admin-btn.primary {
  background: var(--cta-bg);
  color: var(--cta-color);
  border-color: transparent;
}
.docs-admin-btn.primary:disabled { opacity: 0.55; cursor: default; }
.docs-admin-btn.danger { color: var(--error); border-color: var(--error); opacity: 0.75; }
.docs-admin-btn.danger:hover { opacity: 1; background: rgba(225, 29, 72, 0.08); }

.docs-toolbar {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-bottom: 18px;
}

.docs-editor { min-width: 0; }
.editor-meta {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}
.editor-input {
  flex: 1;
  padding: 10px 14px;
  border-radius: 12px;
  border: 2px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s ease;
}
.editor-input:focus { border-color: var(--input-focus-border); }
.editor-input--group { flex: 0 0 180px; font-weight: 400; font-size: 14px; }

.editor-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.editor-hint { font-size: 12px; color: var(--text-tertiary); }
.editor-spacer { flex: 1; }

.editor-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: stretch;
}
.editor-textarea {
  min-height: 560px;
  padding: 18px;
  border-radius: 14px;
  border: 2px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-primary);
  font-family: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13.5px;
  line-height: 1.7;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s ease;
}
.editor-textarea:focus { border-color: var(--input-focus-border); }
.editor-preview {
  padding: 18px 22px;
  border-radius: 14px;
  border: 1px dashed var(--card-border);
  overflow-y: auto;
  max-height: 720px;
}
@media (max-width: 1100px) {
  .editor-split { grid-template-columns: 1fr; }
  .editor-preview { max-height: none; }
}

/* ── 响应式 ── */
@media (max-width: 1100px) {
  .docs-layout { grid-template-columns: 240px minmax(0, 1fr); }
  .docs-toc { display: none; }
}
@media (max-width: 820px) {
  .docs-layout { grid-template-columns: 1fr; padding-top: 84px; }
  .docs-sidebar {
    position: static;
    max-height: none;
    border-right: none;
    border-bottom: 1px solid var(--nav-border);
    padding: 0 0 18px;
    margin-bottom: 24px;
  }
  .docs-content { padding: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .docs-landing { animation: none; }
}