/* i知己 官网共享样式（2026-10-11 重构：产品页 / 用户手册 / 常见问题 三页共用这一份）
   改动纪律：
   - 这是**唯一**一份站点样式，别再往各页里内联 <style>（历史上三页各写一份，改一处漏两处）。
   - 文案与平台能力口径见 docs/amiigo-官网内容审计-20261011.md 与 docs/amiigo-跨端文案分层规范.md。
*/
:root {
  --bg: #f8f9fa; --surface: #ffffff; --primary: #1a73e8;
  --text: #202124; --secondary: #5f6368; --border: #e8eaed;
  --warn-bg: #fef7e0; --info-bg: #e8f0fe;
  --radius: 12px;
}
* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 860px; margin: 0 auto; padding: 0 24px; }
a { color: var(--primary); }

/* Nav */
nav { padding: 20px 0; }
nav .inner { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
nav .brand { display: flex; align-items: center; text-decoration: none; gap: 8px; }
nav .brand img { height: 24px; width: auto; }
nav .brand span { color: var(--secondary); font-size: 14px; }
nav .links { display: flex; gap: 18px; flex-wrap: wrap; }
nav .links a { font-size: 14px; color: var(--secondary); text-decoration: none; }
nav .links a:hover, nav .links a.active { color: var(--text); }
nav .links a.active { font-weight: 600; }

/* Hero */
.hero { text-align: center; padding: 32px 0 40px; }
.hero .icon { width: 80px; height: 80px; border-radius: 20px; margin: 0 auto 16px; display: block; }
.hero h1 { font-size: 30px; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 4px; }
/* 英文名（2026-11-02）：与首页卡片同款，中文名后跟小号英文名 */
.hero h1 .app-en { font-size: 16px; font-weight: 600; color: var(--secondary); letter-spacing: .5px; margin-left: 8px; }
.hero .slogan { font-size: 16px; color: var(--secondary); margin-bottom: 24px; }
.hero .dl-group { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-block; padding: 10px 24px; border-radius: 10px; font-size: 14px;
  font-weight: 600; text-decoration: none; transition: background .2s;
}
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: #1557b0; }
.btn.secondary { background: var(--surface); color: var(--primary); border: 1px solid var(--border); }
.btn.secondary:hover { background: #f1f3f4; }
.btn.ghost { background: none; color: var(--secondary); border: 1px dashed var(--border); cursor: default; font-weight: 400; }
.hero .hero-android-qr { margin-top: 14px; display: inline-flex; flex-direction: column; align-items: center; gap: 4px; }
.hero .hero-android-qr img { width: 112px; height: 112px; border-radius: 8px; border: 1px solid var(--border); }
.hero .hero-android-qr span { font-size: 11px; color: var(--secondary); }

/* Sections */
section { padding: 32px 0; }
section h2 { font-size: 15px; text-transform: uppercase; letter-spacing: 1px; color: var(--secondary); margin-bottom: 16px; font-weight: 600; }

/* Feature grid */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card .ci { font-size: 22px; margin-bottom: 8px; }
.card h3 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.card p { font-size: 13px; color: var(--secondary); }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.pillar { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; text-align: center; }
.pillar .num { font-size: 24px; font-weight: 800; color: var(--primary); }
.pillar h3 { font-size: 13px; font-weight: 700; margin: 4px 0; }
.pillar p { font-size: 11px; color: var(--secondary); line-height: 1.4; }

/* Screenshot carousel */
.carousel { position: relative; overflow: hidden; border-radius: var(--radius); background: #000; max-width: 430px; margin: 0 auto; }
.carousel-track { display: flex; transition: transform .3s ease; }
.carousel-track img { width: 100%; flex-shrink: 0; display: block; }
.carousel-nav { display: flex; gap: 6px; margin-top: 10px; overflow-x: auto; padding-bottom: 4px; }
.carousel-nav img { width: 52px; height: 112px; object-fit: cover; border-radius: 6px; cursor: pointer; border: 2px solid transparent; flex-shrink: 0; opacity: .6; transition: opacity .2s, border-color .2s; }
.carousel-nav img.active { border-color: var(--primary); opacity: 1; }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(0,0,0,.5); color: #fff; border: none; width: 32px; height: 32px; border-radius: 16px; font-size: 16px; cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 1; }
.carousel-btn.left { left: 8px; }
.carousel-btn.right { right: 8px; }
.carousel-btn:hover { background: rgba(0,0,0,.7); }
.carousel-caption { position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%); background: rgba(0,0,0,.6); color: #fff; font-size: 11px; padding: 4px 12px; border-radius: 8px; pointer-events: none; }

/* Tabs（手册 / FAQ 的平台切换） */
.tabs { display: flex; gap: 0; margin-bottom: 16px; border-bottom: 2px solid var(--border); overflow-x: auto; }
.tab-btn {
  padding: 10px 18px; font-size: 14px; font-weight: 600; border: none; background: none;
  color: var(--secondary); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px;
  white-space: nowrap; transition: color .2s, border-color .2s;
}
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-btn .tab-ver { font-size: 11px; color: var(--secondary); font-weight: 400; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Manual / FAQ 正文 */
.manual h3 { font-size: 16px; font-weight: 700; margin: 22px 0 10px; }
.manual h3:first-child { margin-top: 0; }
.manual h4 { font-size: 14px; font-weight: 700; margin: 14px 0 6px; }
.manual p { font-size: 14px; color: var(--secondary); margin-bottom: 8px; }
.manual ul, .manual ol { font-size: 14px; color: var(--secondary); padding-left: 22px; margin-bottom: 12px; }
.manual ul li, .manual ol li { margin-bottom: 4px; }
.manual table { width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 16px; }
.manual table th, .manual table td { padding: 8px 12px; text-align: left; border: 1px solid var(--border); vertical-align: top; }
.manual table th { background: var(--bg); font-weight: 600; font-size: 12px; color: var(--secondary); }
.manual table td { color: var(--text); }
.manual strong { color: var(--text); }
.manual code { background: #f1f3f4; padding: 1px 5px; border-radius: 4px; font-size: 12px; }

/* 提示块 */
.note { font-size: 12px; color: var(--secondary); background: var(--warn-bg); padding: 8px 12px; border-radius: 8px; margin-bottom: 12px; }
.note.info { background: var(--info-bg); }
.note strong { color: var(--text); }

/* 平台能力标记：声明这段内容适用于哪些端（守卫 test_web_copy_consistency.py 会读它） */
.tag-desktop, .tag-mobile { font-size: 11px; padding: 1px 6px; border-radius: 4px; vertical-align: middle; white-space: nowrap; }
.tag-desktop { background: var(--info-bg); color: var(--primary); }
.tag-mobile { background: #e6f4ea; color: #137333; }

/* 手册顶部的版本条 */
.ver-bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.ver-bar .ver { font-size: 11px; color: var(--secondary); background: #f1f3f4; padding: 2px 8px; border-radius: 8px; }

/* FAQ */
.faq-group { margin-bottom: 26px; }
.faq-group > h3 { font-size: 15px; font-weight: 700; margin: 0 0 10px; padding-left: 10px; border-left: 3px solid var(--primary); }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 10px; }
.faq-item summary { font-size: 14px; font-weight: 600; cursor: pointer; }
.faq-item[open] summary { margin-bottom: 8px; }
.faq-item p { font-size: 13px; color: var(--secondary); margin: 6px 0; }
.faq-item ul { font-size: 13px; color: var(--secondary); padding-left: 20px; margin: 6px 0; }
.faq-item .plat { font-size: 11px; color: var(--secondary); background: #f1f3f4; padding: 1px 6px; border-radius: 4px; margin-left: 6px; vertical-align: middle; white-space: nowrap; }

/* 下载区 */
.dl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
.dl-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; text-align: center; }
.dl-card .dl-platform { font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.dl-card .dl-status { font-size: 11px; margin-bottom: 10px; color: var(--secondary); }
.dl-card .dl-btn { display: inline-block; padding: 6px 18px; border-radius: 8px; font-size: 12px; font-weight: 600; text-decoration: none; }
.dl-card .dl-btn.go { background: var(--primary); color: #fff; }
.dl-card .dl-btn.go:hover { background: #1557b0; }
.dl-card .dl-btn.wait { background: #f1f3f4; color: #9aa0a6; cursor: default; }
.dl-help { margin-top: 14px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 16px; }
.dl-help summary { font-size: 13px; font-weight: 600; cursor: pointer; }
.dl-help[open] summary { margin-bottom: 10px; }
.dl-help p { font-size: 13px; color: var(--secondary); margin: 6px 0; }
.dl-help ol { font-size: 13px; color: var(--secondary); padding-left: 20px; margin: 8px 0; }
.dl-help li { margin-bottom: 4px; }
.dl-help .dl-help-note { font-size: 12px; background: var(--warn-bg); padding: 8px 12px; border-radius: 8px; margin-top: 10px; }
.dl-help .dl-help-shot { display: block; margin: 10px auto 4px; max-width: 520px; width: 100%; border: 1px solid var(--border); border-radius: 8px; }
.dl-help .dl-help-cap { font-size: 12px; color: var(--secondary); text-align: center; margin: 0 0 6px; }

/* Footer */
.site-footer { padding: 40px 0 48px; border-top: 1px solid var(--border); background: var(--surface); margin-top: 16px; }
.footer-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding-bottom: 24px; }
.footer-top .brand { display: inline-flex; }
.footer-top .brand img { height: 26px; width: auto; }
.footer-nav { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-nav a { font-size: 14px; color: var(--secondary); text-decoration: none; }
.footer-nav a:hover { color: var(--text); }
.footer-legal { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding-top: 20px; border-top: 1px solid var(--border); }
.copyright { font-size: 13px; color: var(--secondary); margin: 0; }
.beian { font-size: 13px; color: var(--secondary); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.beian a { color: var(--secondary); text-decoration: none; }
.beian a:hover { color: var(--text); }
.beian .gongan { display: inline-flex; align-items: center; gap: 4px; }
.beian .gongan img { width: 14px; height: 14px; vertical-align: middle; }
.beian-sep { color: var(--border); }

@media (max-width: 600px) {
  .carousel { max-width: 100%; }
  .grid2 { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr 1fr; }
  .dl-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 26px; }
  .footer-top { flex-direction: column; align-items: flex-start; }
  .footer-legal { flex-direction: column; align-items: flex-start; }
}