/* AI池子正式公共壳：视觉唯一基准 = aichizi.com/codex.html（2026-08-20 线上版）。
   仅包含 Header / Footer / 微信二维码弹窗；不得改动页面正文样式。
   数值与线上 codex.html 内联样式逐条一致，仅加作用域前缀；
   用 !important 锁定壳样式，防止历史页面 CSS 覆盖壳。 */
:root {
  --ink: #031726;
  --ink-2: #07253a;
  --text: #102334;
  --muted: #637386;
  --line: #dce7ee;
  --paper: #f7fafc;
  --white: #fff;
  --cyan: #25c7d9;
  --cyan-2: #0ca8c6;
  --blue: #246bfe;
  --blue-2: #1045cf;
  --amber: #ffb32c;
  --amber-2: #f28b16;
  --green: #0d9c75;
  --shadow: 0 24px 70px rgba(3, 23, 38, .13);
  --radius: 24px;
  --container: 1180px;
}
/* 字体与 codex.html 线上 body 一致，保证所有页面壳渲染相同 */
.site-header,
.site-footer,
.modal-mask#qr-modal {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif !important;
}
.site-header {
  position: sticky !important;
  z-index: 100 !important;
  top: 0 !important;
  height: 68px !important;
  margin: 0 !important;
  padding: 0 !important;
  background: rgba(255,255,255,.88) !important;
  border: 0 !important;
  border-bottom: 1px solid rgba(220,231,238,.75) !important;
  box-shadow: none !important;
  backdrop-filter: blur(18px) !important;
  -webkit-backdrop-filter: blur(18px) !important;
  transition: none !important;
}
.site-header .container,
.site-footer .container {
  width: min(var(--container), calc(100% - 40px)) !important;
  max-width: none !important;
  margin-inline: auto !important;
  padding-inline: 0 !important;
}
.site-header .nav-wrap {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  height: 68px !important;
  gap: 0 !important;
}
.site-header .brand {
  display: inline-flex !important;
  align-items: center !important;
  gap: 10px !important;
  color: var(--text) !important;
  font-size: 18px !important;
  font-weight: 900 !important;
  letter-spacing: -.02em !important;
  text-decoration: none !important;
}
.site-header .brand-mark { width: 32px !important; height: 32px !important; flex: 0 0 32px !important; }
.site-header .nav-links {
  display: flex !important;
  align-items: center !important;
  gap: 6px !important;
  margin: 0 !important;
  padding: 0 !important;
}
.site-header .nav-links a {
  position: static !important;
  margin: 0 !important;
  padding: 8px 12px !important;
  color: #43576b !important;
  background: transparent !important;
  border: 0 !important;
  border-radius: 10px !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  text-decoration: none !important;
  gap: 0 !important;
}
.site-header .nav-links a::after { display: none !important; content: none !important; }
.site-header .nav-links a:hover,
.site-header .nav-links a.active { color: #056b7a !important; background: #eafafb !important; }
.site-header .nav-links .nav-cta,
.site-header .nav-links .nav-cta:hover,
.site-header .nav-links .nav-cta.active,
.site-header .nav-links .nav-cta.is-current {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  color: #fff !important;
  background: var(--ink) !important;
  padding: 8px 12px !important;
  border-radius: 10px !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  opacity: 1 !important;
  visibility: visible !important;
}
.site-header .nav-toggle {
  display: none !important;
  width: 42px !important;
  height: 42px !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  border-radius: 12px !important;
  color: var(--ink) !important;
  background: #edf4f7 !important;
  font-size: inherit !important;
  font-weight: 400 !important;
  cursor: pointer !important;
}
.site-footer {
  color: #9bb0bd !important;
  background: #02111c !important;
  margin: 0 !important;
  padding: 0 !important;
}
.site-footer .footer-grid {
  display: grid !important;
  grid-template-columns: 1.5fr repeat(3,1fr) !important;
  gap: 30px !important;
  margin: 0 !important;
  padding: 52px 0 34px !important;
}
.site-footer .footer-grid h4 {
  margin: 0 0 12px !important;
  color: #fff !important;
  font-size: 16px !important;
  font-weight: bold !important;
  line-height: 1.65 !important;
}
.site-footer .footer-grid p {
  margin: 7px 0 !important;
  color: #9bb0bd !important;
  font-size: 13px !important;
  line-height: 1.65 !important;
}
.site-footer .footer-grid a { color: inherit !important; text-decoration: none !important; }
.site-footer .footer-grid a:hover { color: #fff !important; }
.site-footer .footer-bottom {
  margin: 0 !important;
  padding: 18px 0 25px !important;
  color: #9bb0bd !important;
  border: 0 !important;
  border-top: 1px solid rgba(255,255,255,.08) !important;
  font-size: 12px !important;
  line-height: 1.65 !important;
  text-align: center !important;
}
/* 页尾「打开微信二维码」按钮：与 codex.html 线上渲染一致（UA 按钮外观 + .btn 基础布局） */
.site-footer .btn.btn-sm.btn-outline {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  min-height: 48px !important;
  margin: 0 !important;
  padding: 0 21px !important;
  border: 1px solid transparent !important;
  border-radius: 14px !important;
  font-family: inherit !important;
  font-size: 13px !important;
  font-weight: 900 !important;
  line-height: 1.2 !important;
  cursor: pointer !important;
  color: #000 !important;
  background: #efefef !important;
  text-decoration: none !important;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease !important;
}
.site-footer .btn.btn-sm.btn-outline:hover { transform: translateY(-2px) !important; }
/* 微信二维码弹窗：与 codex.html 线上一致 */
.modal-mask#qr-modal {
  position: fixed !important;
  z-index: 300 !important;
  inset: 0 !important;
  display: none !important;
  place-items: center !important;
  padding: 20px !important;
  background: rgba(1,13,22,.78) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  transition: none !important;
}
.modal-mask#qr-modal.open { display: grid !important; }
.modal-mask#qr-modal .modal {
  position: relative !important;
  width: min(420px,100%) !important;
  padding: 30px !important;
  color: var(--text) !important;
  background: #fff !important;
  border: 0 !important;
  border-radius: 22px !important;
  box-shadow: 0 30px 90px rgba(0,0,0,.35) !important;
  text-align: center !important;
  transform: none !important;
  opacity: 1 !important;
  transition: none !important;
}
.modal-mask#qr-modal .modal h3 { margin: 0 !important; color: var(--text) !important; font-size: 25px !important; }
.modal-mask#qr-modal .modal p { margin: 10px 0 !important; color: var(--muted) !important; font-size: 14px !important; line-height: 1.65 !important; }
.modal-mask#qr-modal .modal .qr {
  display: block !important;
  width: 220px !important;
  height: 220px !important;
  margin: 18px auto !important;
  object-fit: cover !important;
  background: #fff !important;
  border: 1px solid var(--line) !important;
  border-radius: 14px !important;
  box-shadow: none !important;
}
.modal-mask#qr-modal .modal-close {
  min-height: 40px !important;
  margin: 0 !important;
  padding: 0 18px !important;
  border: 0 !important;
  color: #43576b !important;
  background: #edf3f6 !important;
  border-radius: 10px !important;
  font: inherit !important;
  cursor: pointer !important;
  transform: none !important;
}
.site-header :focus-visible,
.site-footer :focus-visible,
.modal-mask#qr-modal :focus-visible { outline: 3px solid rgba(36,107,254,.35) !important; outline-offset: 3px !important; }
@media (max-width: 980px) {
  .site-footer .footer-grid { grid-template-columns: 1fr 1fr !important; }
}
@media (max-width: 760px) {
  .site-header { height: 60px !important; }
  .site-header .container { width: min(calc(100% - 28px), var(--container)) !important; }
  .site-header .nav-wrap { height: 60px !important; }
  .site-header .nav-toggle { display: inline-grid !important; place-items: center !important; }
  .site-header .nav-links {
    position: absolute !important;
    top: 60px !important;
    right: 14px !important;
    left: 14px !important;
    display: none !important;
    margin: 0 !important;
    padding: 12px !important;
    background: #fff !important;
    border: 1px solid var(--line) !important;
    border-radius: 16px !important;
    box-shadow: var(--shadow) !important;
  }
  .site-header .nav-links.open { display: grid !important; }
  .site-header .nav-links a { padding: 11px 12px !important; }
  .site-footer .container { width: min(calc(100% - 28px), var(--container)) !important; }
  .site-footer .footer-grid { grid-template-columns: 1fr !important; }
}