/* ZC Dual-Site Theme — 外壳样式（header/footer/nav/容器） */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; color: #222; background: #fff; line-height: 1.7; }

.zc-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Header */
.zc-header { color: #fff; box-shadow: 0 2px 12px rgba(0,0,0,0.12); position: sticky; top: 0; z-index: 100; }
.zc-header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 20px; }
.zc-brand-link { display: flex; flex-direction: column; color: #fff; text-decoration: none; line-height: 1.25; }
.zc-brand-name { font-size: 18px; font-weight: 700; letter-spacing: 0.5px; }
.zc-brand-tag { font-size: 11px; opacity: 0.82; }
.zc-nav-list { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.zc-nav-item a { display: inline-block; padding: 8px 12px; color: #fff; text-decoration: none; font-size: 14px; border-radius: 6px; opacity: 0.9; transition: background .2s, opacity .2s; }
.zc-nav-item a:hover, .zc-nav-item.current a { background: rgba(255,255,255,0.16); opacity: 1; }
.zc-header-right { display: flex; align-items: center; gap: 14px; }
.zc-lang { display: inline-block; padding: 6px 14px; border: 1px solid rgba(255,255,255,0.55); border-radius: 20px; color: #fff; text-decoration: none; font-size: 13px; transition: background .2s; }
.zc-lang:hover { background: rgba(255,255,255,0.18); }
.zc-nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 6px; }
.zc-nav-toggle span { display: block; width: 22px; height: 2px; background: #fff; margin: 4px 0; border-radius: 2px; }

/* Main / Page */
.zc-main { min-height: 60vh; }
.zc-page { padding: 30px 20px 60px; }
.zc-page-header { border-radius: 12px; padding: 34px 28px; margin-bottom: 28px; color: #fff; }
.zc-page-title { margin: 0; font-size: 26px; font-weight: 700; }
.zc-page-content { font-size: 15px; }
.zc-page-content img { max-width: 100%; height: auto; }

/* Front page: 正文自带样式，这里仅保证容器正常 */
.zc-front-content > * { max-width: 100%; }

/* Footer */
.zc-footer { color: #fff; margin-top: 40px; }
.zc-footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; padding: 46px 20px 30px; }
.zc-footer-col h4 { margin: 0 0 12px; font-size: 15px; opacity: 0.92; }
.zc-footer-col p { font-size: 13px; opacity: 0.82; margin: 4px 0; }
.zc-footer-addr { font-size: 12px; opacity: 0.75; }
.zc-footer-nav { list-style: none; margin: 0; padding: 0; }
.zc-footer-nav .zc-nav-item a { padding: 4px 0; font-size: 13px; display: block; opacity: 0.85; }
.zc-footer-contact { list-style: none; margin: 0; padding: 0; font-size: 13px; opacity: 0.85; }
.zc-footer-contact li { margin: 4px 0; }
.zc-footer-qr { border-radius: 8px; background: #fff; padding: 4px; }
.zc-footer-bottom { border-top: 1px solid rgba(255,255,255,0.18); padding: 14px 0; font-size: 12px; opacity: 0.72; }
.zc-footer-bottom p { margin: 0; }

/* Buttons */
.zc-btn { display: inline-block; padding: 10px 22px; border-radius: 6px; background: #C8963E; color: #fff; text-decoration: none; font-weight: 600; }

/* Responsive */
@media (max-width: 960px) {
  .zc-footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .zc-header-inner { flex-wrap: wrap; min-height: 56px; }
  .zc-nav-list { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #1a1a2e; flex-direction: column; padding: 10px 16px 16px; box-shadow: 0 6px 16px rgba(0,0,0,0.2); }
  .zc-nav-list.open { display: flex; }
  .zc-nav-toggle { display: block; }
  .zc-footer-grid { grid-template-columns: 1fr; gap: 22px; }
}

/* Accessibility */
.screen-reader-text { position: absolute !important; clip: rect(1px,1px,1px,1px); width: 1px; height: 1px; overflow: hidden; }