/* ============================================================
   码集 Codeset · 结构布局 (layout)
   站点外壳 / 导航附加件 / 页脚 / 栅格 / 响应式。
   原子组件（cs-navbar / cs-logo / cs-btn / cs-card ...）来自 Assets/design/components.css；
   本文件只补设计系统未覆盖的「页面结构」，全部用 MAJI 令牌。
   ============================================================ */

/* ── 站点外壳（nav 吸顶在流内，footer 为 .cs-site 同级兄弟）──── */
.cs-site { min-height: 60vh; }
.cs-container--narrow { max-width: var(--cs-container-doc); }
.cs-container--wide { max-width: var(--cs-container-wide); }

/* ── 栅格 / 列表（补 components.css 的 cs-grid-3/4）──────── */
.cs-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.cs-list { display: flex; flex-direction: column; gap: 14px; }

/* ── Skip link ─────────────────────────────────────────── */
.cs-skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--cs-accent); color: #fff; padding: 8px 16px; border-radius: 0 0 8px 0;
}
.cs-skip-link:focus { left: 0; }

/* ── 导航附加件（cs-navbar 基样式在 components.css）──────── */
.cs-logo-img { height: 28px; width: auto; display: block; }

.cs-nav-links { display: flex; align-items: center; }
.cs-menu { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.cs-menu a,
.cs-navlink {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 7px 12px; border-radius: var(--cs-radius-md);
  font-size: var(--cs-text-base); color: var(--cs-text-soft, var(--cs-muted));
  transition: color var(--cs-transition-fast), background var(--cs-transition-fast);
}
.cs-menu a:hover,
.cs-navlink:hover { color: var(--cs-ink); background: var(--cs-surface); }
.cs-menu .current-menu-item > a,
.cs-menu .current_page_item > a,
.cs-menu .current-menu-parent > a {
  background: var(--cs-accent-weak); color: var(--cs-accent); font-weight: var(--cs-fw-semibold);
}

.cs-nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.cs-nav-search { position: relative; }
.cs-nav-search-ic {
  position: absolute; left: 11px; top: 50%; transform: translateY(-50%);
  color: var(--cs-muted); pointer-events: none; display: flex; width: 15px; height: 15px;
}
.cs-nav-search-ic svg { width: 15px; height: 15px; }
.cs-nav-search input {
  width: 170px; height: 38px; padding: 0 14px 0 34px; border-radius: var(--cs-radius-lg);
  background: var(--cs-surface); border: 1px solid var(--cs-border);
  color: var(--cs-text); font-size: var(--cs-text-sm); outline: none;
  transition: width var(--cs-transition), border-color var(--cs-transition-fast);
}
.cs-nav-search input:focus {
  width: 220px; border-color: var(--cs-accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--cs-accent) 16%, transparent);
}

.cs-nav-avatar { display: flex; position: relative; }
.cs-nav-avatar img { border-radius: 50%; display: block; }
.cs-nav-dot {
  position: absolute; top: -1px; right: -1px; width: 9px; height: 9px; border-radius: 50%;
  background: var(--cs-danger); border: 2px solid var(--cs-bg);
}

.cs-nav-burger {
  display: none; width: 38px; height: 38px; border: none; background: transparent;
  color: var(--cs-ink); cursor: pointer; align-items: center; justify-content: center;
}
.cs-nav-burger svg { width: 20px; height: 20px; }

/* ── 页脚 ──────────────────────────────────────────────── */
.cs-footer { background: var(--cs-surface); border-top: 1px solid var(--cs-border); padding: 56px 0 28px; margin-top: var(--cs-space-20); }
.cs-footer__inner { max-width: var(--cs-container); margin: 0 auto; padding: 0 var(--cs-page-pad); }
.cs-footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.cs-footer-brand p { font-size: var(--cs-text-sm); color: var(--cs-muted); line-height: var(--cs-leading-relaxed); max-width: 240px; margin-top: 14px; }
.cs-footer-title { font-size: var(--cs-text-sm); font-weight: var(--cs-fw-semibold); color: var(--cs-ink); margin-bottom: 14px; }
.cs-footer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.cs-footer-links a { font-size: var(--cs-text-sm); color: var(--cs-muted); }
.cs-footer-links a:hover { color: var(--cs-accent); }
.cs-footer-bottom { border-top: 1px solid var(--cs-border); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; font-size: var(--cs-text-xs); color: var(--cs-muted); flex-wrap: wrap; gap: 8px; }

/* ── 响应式（用户约定：880px 单列降级）────────────────── */
@media (max-width: 1024px) {
  .cs-grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 880px) {
  .cs-grid-2, .cs-grid-3, .cs-grid-4 { grid-template-columns: 1fr; }
  .cs-footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .cs-nav-burger { display: flex; }
  .cs-navbar__inner { flex-wrap: wrap; }
  .cs-nav-links {
    position: fixed; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; background: var(--cs-bg);
    border-bottom: 1px solid var(--cs-border); padding: 8px;
    max-height: 0; overflow: hidden; transition: max-height var(--cs-transition);
  }
  .cs-nav-links.is-open { max-height: 70vh; overflow: auto; }
  .cs-menu { flex-direction: column; gap: 2px; }
  .cs-menu a, .cs-navlink { padding: 12px 14px; }
  .cs-nav-search { display: none; }
}

/* 表格溢出滚动（用户约定）*/
.cs-article-body table, .entry-content table { display: block; overflow-x: auto; max-width: 100%; }