/* ============================================================
   ZY Action Platform 场景故事站 共享样式（唯一样式文件）
   亮色主题 · 零外部依赖 · 可离线 file:// 直接打开
   约定：
   - 全站所有页面（index / 产品落地页 / 主题页）只用本文件，不要新建其他 css；
   - 产品色通过 body[data-page="aip|foundry|apollo|gotham|swift|cross"] 自动切换；
   - 故事卡片结构：.story-card > .story-card-head(.story-no/.story-title/.story-meta) + dl.story-part×9
     （dt 固定 92px 标签格，dd 可通过 class 额外加 .compare/.try-it/.story-limits 高亮，
       story.js 也会按 dt 文案自动补这些 class，二选一均可）。
   ============================================================ */

:root {
  --bg: #f8fafc;
  --card: #fff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 16px rgba(15, 23, 42, .05);
  --shadow-lg: 0 6px 24px rgba(15, 23, 42, .12);
  --topbar-h: 58px;

  /* 通用品牌色（顶部导航/搜索框高亮用） */
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --brand-bg: #eff6ff;

  /* 代码块 */
  --code-bg: #0f172a;
  --code-text: #e2e8f0;

  /* 产品色 */
  --c-aip: #2563eb;
  --c-foundry: #7c3aed;
  --c-apollo: #ea580c;
  --c-gotham: #0891b2;
  --c-swift: #059669;
  --c-cross: #475569;
  --c-aip-bg: #eff6ff;
  --c-foundry-bg: #f5f3ff;
  --c-apollo-bg: #fff7ed;
  --c-gotham-bg: #ecfeff;
  --c-swift-bg: #ecfdf5;
  --c-cross-bg: #f1f5f9;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 15px;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------------- 顶部导航 ---------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  height: var(--topbar-h);
}
.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  white-space: nowrap;
}
.brand:hover { color: var(--text); text-decoration: none; }
.main-nav {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  flex: 1;
}
.main-nav::-webkit-scrollbar { display: none; }
.main-nav a {
  color: var(--text-muted);
  font-size: 14px;
  padding: 6px 12px;
  border-radius: 8px;
  white-space: nowrap;
  transition: background .15s, color .15s;
}
.main-nav a:hover { background: var(--brand-bg); color: var(--brand-dark); text-decoration: none; }
.main-nav a.active { background: var(--brand); color: #fff; font-weight: 600; }

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .2s, opacity .2s;
}

/* ---------------- 布局：侧栏目录 + 内容 ---------------- */
.layout {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  gap: 24px;
  padding: 24px 20px 80px;
}
.toc {
  flex: 0 0 240px;
  position: sticky;
  top: calc(var(--topbar-h) + 20px);
  align-self: flex-start;
  max-height: calc(100vh - var(--topbar-h) - 40px);
  overflow-y: auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-size: 13.5px;
}
.toc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border);
}
.toc ol { list-style: none; margin: 0; }
.toc a {
  display: block;
  color: var(--text-muted);
  padding: 3px 8px;
  border-radius: 6px;
  border-left: 2px solid transparent;
}
.toc a:hover { background: var(--brand-bg); color: var(--brand-dark); text-decoration: none; }
.toc a.on { background: var(--brand-bg); color: var(--brand-dark); border-left-color: var(--brand); }
.toc.collapsed .toc-body { display: none; }
.toc.collapsed { flex-basis: auto; }
.toc-toggle {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-muted);
  border-radius: 6px;
  font-size: 12px;
  padding: 2px 8px;
  cursor: pointer;
}
.toc-toggle:hover { background: var(--brand-bg); color: var(--brand-dark); }

.content { flex: 1 1 auto; min-width: 0; max-width: 960px; }
.content-wide { max-width: none; }

/* ---------------- 通用区块 ---------------- */
h1 { font-size: 30px; line-height: 1.3; margin-bottom: 8px; letter-spacing: -.01em; }
h2 {
  font-size: 22px;
  margin: 42px 0 14px;
  padding-left: 12px;
  border-left: 4px solid var(--brand);
  letter-spacing: -.01em;
  scroll-margin-top: calc(var(--topbar-h) + 16px);
}
h3 {
  font-size: 17px;
  margin: 26px 0 10px;
  color: var(--brand-dark);
  scroll-margin-top: calc(var(--topbar-h) + 16px);
}
h4 { font-size: 15px; margin: 18px 0 8px; }
p { margin: 8px 0; }
ul, ol { margin: 8px 0 8px 22px; }
li { margin: 4px 0; }

/* ---------------- 主题页 Hero ---------------- */
.story-hero {
  background: linear-gradient(135deg, #eff6ff 0%, #fff 65%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 28px 22px;
  margin-bottom: 8px;
}
body[data-page="aip"] .story-hero     { background: linear-gradient(135deg, var(--c-aip-bg) 0%, #fff 65%); }
body[data-page="foundry"] .story-hero { background: linear-gradient(135deg, var(--c-foundry-bg) 0%, #fff 65%); }
body[data-page="apollo"] .story-hero  { background: linear-gradient(135deg, var(--c-apollo-bg) 0%, #fff 65%); }
body[data-page="gotham"] .story-hero  { background: linear-gradient(135deg, var(--c-gotham-bg) 0%, #fff 65%); }
body[data-page="swift"] .story-hero   { background: linear-gradient(135deg, var(--c-swift-bg) 0%, #fff 65%); }
body[data-page="cross"] .story-hero   { background: linear-gradient(135deg, var(--c-cross-bg) 0%, #fff 65%); }
.story-hero h1 { font-size: 28px; margin: 8px 0 6px; }
.story-summary { font-size: 15px; color: var(--text-muted); max-width: 860px; margin: 6px 0 12px; }

/* 产品徽章（随 body[data-page] 取色） */
.product-badge {
  display: inline-block;
  padding: 3px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  background: #eef2ff;
  color: #4338ca;
  border: 1px solid transparent;
}
body[data-page="aip"] .product-badge     { background: var(--c-aip-bg); color: var(--c-aip); }
body[data-page="foundry"] .product-badge { background: var(--c-foundry-bg); color: var(--c-foundry); }
body[data-page="apollo"] .product-badge  { background: var(--c-apollo-bg); color: var(--c-apollo); }
body[data-page="gotham"] .product-badge  { background: var(--c-gotham-bg); color: var(--c-gotham); }
body[data-page="swift"] .product-badge   { background: var(--c-swift-bg); color: var(--c-swift); }
body[data-page="cross"] .product-badge   { background: var(--c-cross-bg); color: var(--c-cross); }

/* ---------------- 徽章 / Pill ---------------- */
.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 1px 9px;
  border-radius: 999px;
  background: #eef2ff;
  color: #4338ca;
  vertical-align: middle;
}
.badge.aip     { background: var(--c-aip-bg); color: var(--c-aip); }
.badge.foundry { background: var(--c-foundry-bg); color: var(--c-foundry); }
.badge.apollo  { background: var(--c-apollo-bg); color: var(--c-apollo); }
.badge.gotham  { background: var(--c-gotham-bg); color: var(--c-gotham); }
.badge.swift   { background: var(--c-swift-bg); color: var(--c-swift); }
.badge.cross   { background: var(--c-cross-bg); color: var(--c-cross); }
.badge.green   { background: #f0fdf4; color: #16a34a; }
.badge.amber   { background: #fffbeb; color: #b45309; }
.badge.purple  { background: var(--c-foundry-bg); color: var(--c-foundry); }
.badge.gray    { background: #f1f5f9; color: #475569; }

.pill-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pill {
  font-size: 13px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border-strong);
  color: #334155;
}
.pill.on { background: var(--brand); color: #fff; border-color: var(--brand); }

.story-count {
  display: inline-block;
  font-size: 12px;
  color: var(--text-muted);
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 10px;
}

/* ---------------- 能/不能速览（quick-matrix） ---------------- */
.quick-matrix {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 12px 0;
}
.qm-col {
  border: 1px solid var(--border);
  border-top: 3px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 16px 18px;
  background: var(--card);
  box-shadow: var(--shadow);
}
.qm-col.qm-yes { border-top-color: #16a34a; }
.qm-col.qm-no  { border-top-color: #dc2626; }
.qm-head { font-weight: 700; font-size: 15px; margin-bottom: 8px; }
.qm-yes .qm-head { color: #166534; }
.qm-no  .qm-head { color: #991b1b; }
.qm-col ul { margin: 4px 0 0 18px; }
.qm-col li { margin: 4px 0; font-size: 14px; }

/* ---------------- 卡片 ---------------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.card + .card { margin-top: 16px; }
.card h3 { margin-top: 0; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.module-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.module-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--brand); }
.module-card h3 { margin: 0 0 6px; font-size: 16px; color: var(--text); }
.module-card p { color: var(--text-muted); font-size: 13.5px; margin: 0; }

/* ---------------- 故事卡片 ---------------- */
.story-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 20px 0;
  box-shadow: var(--shadow);
}
.story-card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.story-no {
  font-size: 12px;
  font-weight: 800;
  color: #fff;
  background: var(--brand);
  border-radius: 6px;
  padding: 2px 10px;
  flex: none;
}
body[data-page="aip"] .story-no     { background: var(--c-aip); }
body[data-page="foundry"] .story-no { background: var(--c-foundry); }
body[data-page="apollo"] .story-no  { background: var(--c-apollo); }
body[data-page="gotham"] .story-no  { background: var(--c-gotham); }
body[data-page="swift"] .story-no   { background: var(--c-swift); }
body[data-page="cross"] .story-no   { background: var(--c-cross); }
.story-title { font-size: 18px; font-weight: 700; color: var(--text); }
.story-meta { display: flex; flex-wrap: wrap; gap: 6px; }

/* 故事九要素（dl） */
.story-parts { margin-top: 4px; }
.story-part {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 4px 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  align-items: start;
}
.story-part:last-child { border-bottom: none; }
.story-part dt {
  grid-column: 1;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  background: #f1f5f9;
  border-radius: 6px;
  padding: 2px 8px;
  text-align: center;
  align-self: start;
  margin-top: 2px;
  white-space: nowrap;
}
.story-part dd { grid-column: 2; margin: 0; font-size: 14px; }
.story-part dd ul { margin: 4px 0 0 18px; }
.story-part dd li { margin: 2px 0; }

/* 要素高亮底（story.js 也会按 dt 文案自动补 class，模板里可显式写，二选一） */
.compare     { background: #f8fafc; border: 1px dashed var(--border-strong); border-radius: var(--radius-sm); padding: 8px 12px; color: #475569; }
.try-it      { background: #eff6ff; border: 1px solid #bfdbfe; border-radius: var(--radius-sm); padding: 8px 12px; color: #1e40af; }
.story-limits { background: #fffbeb; border: 1px solid #fde68a; border-radius: var(--radius-sm); padding: 8px 12px; color: #92400e; }

/* 操作步骤 */
ol.steps { list-style: none; counter-reset: step; margin: 6px 0; }
ol.steps > li { counter-increment: step; position: relative; padding-left: 30px; margin: 6px 0; }
ol.steps > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--brand-bg);
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------------- FAQ ---------------- */
.faq-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  margin: 10px 0;
  overflow: hidden;
}
.faq-item summary {
  cursor: pointer;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 14.5px;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 18px; color: var(--text-muted); transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { background: #f8fafc; }
.faq-item p { padding: 0 16px 12px; margin: 0; font-size: 14px; color: var(--text-muted); }

/* ---------------- 表格 / 代码 ---------------- */
.table-wrap { overflow-x: auto; margin: 12px 0; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; background: #fff; }
th, td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: #f1f5f9; font-weight: 600; color: #334155; white-space: nowrap; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: #f8fafc; }
td code, th code { background: var(--brand-bg); color: var(--brand-dark); padding: 1px 5px; border-radius: 4px; font-size: 12px; }

pre {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 14px 16px;
  border-radius: 10px;
  overflow-x: auto;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 13px;
  line-height: 1.6;
  margin: 12px 0;
  position: relative;
}
pre code { background: none; color: inherit; padding: 0; font-size: inherit; }
code {
  background: #f1f5f9;
  color: #c2410c;
  padding: 1px 6px;
  border-radius: 4px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 13px;
}
.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(148, 163, 184, .18);
  color: #e2e8f0;
  border: 1px solid rgba(148, 163, 184, .35);
  border-radius: 6px;
  font-size: 12px;
  padding: 2px 10px;
  cursor: pointer;
  opacity: 0;
  transition: opacity .15s;
}
pre:hover .copy-btn { opacity: 1; }
.copy-btn:hover { background: var(--brand); color: #fff; }

/* ---------------- 提示框 ---------------- */
.alert { padding: 10px 16px; border-radius: 10px; font-size: 14px; margin: 12px 0; }
.alert-info    { background: var(--c-aip-bg); border: 1px solid #bfdbfe; color: #1e40af; }
.alert-warn    { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; }
.alert-ok      { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }
.alert-danger  { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }

/* ---------------- index 搜索 / 过滤 / 主题网格 ---------------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin: 14px 0 8px;
}
#searchInput {
  flex: 1;
  min-width: 240px;
  padding: 10px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
}
#searchInput:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }
.filter-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-pills .pill { cursor: pointer; background: #fff; }
.filter-pills .pill.on { background: var(--brand); color: #fff; border-color: var(--brand); }

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin: 16px 0;
}
.topic-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 16px 18px;
  color: var(--text);
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.topic-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); text-decoration: none; }
.topic-card[data-product="aip"]     { border-left-color: var(--c-aip); }
.topic-card[data-product="foundry"] { border-left-color: var(--c-foundry); }
.topic-card[data-product="apollo"]  { border-left-color: var(--c-apollo); }
.topic-card[data-product="gotham"]  { border-left-color: var(--c-gotham); }
.topic-card[data-product="swift"]   { border-left-color: var(--c-swift); }
.topic-card[data-product="cross"]   { border-left-color: var(--c-cross); }
.topic-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.topic-name { font-size: 16px; font-weight: 700; }
.topic-summary { font-size: 13px; color: var(--text-muted); flex: 1; }
.topic-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.topic-tags .pill { font-size: 11px; padding: 1px 8px; }

.no-result { text-align: center; color: var(--text-muted); padding: 30px 0; }

/* ---------------- 返回顶部 ---------------- */
#back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  background: var(--brand);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
  z-index: 60;
}
#back-to-top.show { opacity: 1; pointer-events: auto; }
#back-to-top:hover { transform: translateY(-2px); background: var(--brand-dark); }

/* ---------------- 页脚 ---------------- */
.footer {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 20px 30px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 960px) {
  .layout { flex-direction: column; }
  .toc { position: static; flex: none; max-height: none; }
  .quick-matrix { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 14px; }
  .topbar-inner { padding: 0 12px; }
  .brand { font-size: 14px; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute;
    top: var(--topbar-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 8px;
    display: none;
    overflow-x: visible;
    box-shadow: var(--shadow-lg);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 10px 12px; }
  .story-hero { padding: 22px 18px; }
  .story-hero h1 { font-size: 24px; }
  .story-card { padding: 16px; }
  .story-part { grid-template-columns: 76px 1fr; gap: 4px 10px; }
  .story-part dt { font-size: 11px; padding: 2px 4px; }
  .topic-grid { grid-template-columns: 1fr; }
}