/* ==========================================================================
   RUN · 润 — Global Mobility & Visa Intelligence Platform v2.0
   Production CSS for https://yimin.jinzhai.icu/
   ========================================================================== */

:root {
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-elevated: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.88);
  --ink-primary: #0f172a;
  --ink-secondary: #334155;
  --ink-muted: #64748b;
  --border-color: #e2e8f0;
  --border-strong: #cbd5e1;
  --brand: #0f766e;
  --brand-hover: #0d9488;
  --brand-soft: rgba(15, 118, 110, 0.09);
  --brand-border: rgba(15, 118, 110, 0.28);
  --accent-blue: #0284c7;
  --accent-amber: #d97706;
  --accent-rose: #e11d48;
  --accent-purple: #7c3aed;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 6px 18px -4px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --header-h: 62px;
}

[data-theme="dark"] {
  --bg-page: #090f17;
  --bg-surface: #111b27;
  --bg-subtle: #162231;
  --bg-elevated: #1a293b;
  --bg-glass: rgba(11, 19, 30, 0.88);
  --ink-primary: #f1f5f9;
  --ink-secondary: #cbd5e1;
  --ink-muted: #94a3b8;
  --border-color: #1e2f42;
  --border-strong: #2d445e;
  --brand: #2dd4bf;
  --brand-hover: #5eead4;
  --brand-soft: rgba(45, 212, 191, 0.12);
  --brand-border: rgba(45, 212, 191, 0.32);
  --accent-blue: #38bdf8;
  --accent-amber: #fbbf24;
  --accent-rose: #fb7185;
  --accent-purple: #a78bfa;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 44px -8px rgba(0, 0, 0, 0.65);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 20px); }
body {
  margin: 0;
  background: var(--bg-page);
  color: var(--ink-primary);
  font-family: var(--font-sans);
  font-size: 15.5px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--brand-hover); text-decoration: underline; text-underline-offset: 3px; }

/* Sticky Top Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
}
.header-inner {
  max-width: 1440px;
  height: 100%;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.header-left { display: flex; align-items: center; gap: 14px; }
.menu-toggle {
  display: none;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--ink-primary);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 16px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  color: var(--ink-primary);
  text-decoration: none !important;
}
.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #0f766e, #10b981);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  box-shadow: 0 2px 8px rgba(15, 118, 110, 0.35);
}
.brand-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  border: 1px solid var(--brand-border);
}
.top-tabs { display: flex; align-items: center; gap: 4px; }
.top-tab {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  color: var(--ink-secondary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none !important;
  transition: all 0.15s ease;
}
.top-tab:hover { background: var(--bg-subtle); color: var(--ink-primary); }
.top-tab.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.header-right { display: flex; align-items: center; gap: 10px; }
.search-trigger {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--ink-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  cursor: pointer;
  min-width: 210px;
  justify-content: space-between;
  transition: border-color 0.15s ease;
}
.search-trigger:hover { border-color: var(--brand); color: var(--ink-primary); }
.search-kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--ink-muted);
}
.icon-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--ink-secondary);
  height: 34px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none !important;
}
.icon-btn:hover { border-color: var(--border-strong); color: var(--ink-primary); }

/* 3-Column Layout */
.layout-shell {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 272px minmax(0, 1fr) 236px;
  gap: 28px;
  padding: 24px 20px 64px;
  align-items: start;
}
.sidebar-left {
  position: sticky;
  top: calc(var(--header-h) + 16px);
  max-height: calc(100vh - var(--header-h) - 32px);
  overflow-y: auto;
  padding-right: 6px;
  scrollbar-width: thin;
}
.nav-filter-wrap { margin-bottom: 12px; }
.nav-filter-input {
  width: 100%;
  padding: 7px 10px;
  font-size: 13px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--ink-primary);
}
.nav-filter-input:focus { outline: none; border-color: var(--brand); }
.nav-group { margin-bottom: 16px; }
.nav-group-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
  padding: 6px 8px;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.nav-link {
  display: block;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--ink-secondary);
  text-decoration: none !important;
  line-height: 1.4;
  transition: background 0.12s ease, color 0.12s ease;
}
.nav-link:hover { background: var(--bg-subtle); color: var(--ink-primary); }
.nav-link.active {
  background: var(--brand-soft);
  color: var(--brand);
  font-weight: 600;
  border-left: 3px solid var(--brand);
}
.content-main {
  min-width: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  box-shadow: var(--shadow-sm);
}
.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--ink-muted);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}
.breadcrumbs a { color: var(--ink-secondary); }
.breadcrumbs .sep { color: var(--border-strong); }
.sidebar-right {
  position: sticky;
  top: calc(var(--header-h) + 16px);
  max-height: calc(100vh - var(--header-h) - 32px);
  overflow-y: auto;
  padding-left: 4px;
  scrollbar-width: thin;
}
.toc-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}
.toc-title {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
}
.toc-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 5px; }
.toc-list a {
  display: block;
  font-size: 12.8px;
  line-height: 1.45;
  color: var(--ink-secondary);
  text-decoration: none !important;
  padding: 3px 0 3px 8px;
  border-left: 2px solid transparent;
}
.toc-list a:hover { color: var(--brand); border-left-color: var(--brand); }
.toc-list .toc-h3 { padding-left: 18px; font-size: 12px; color: var(--ink-muted); }

/* Typography & Components */
.prose h1 { font-size: 30px; line-height: 1.3; margin: 0 0 14px; color: var(--ink-primary); letter-spacing: -0.01em; }
.prose h2 { font-size: 21px; line-height: 1.35; margin: 34px 0 14px; padding-bottom: 8px; border-bottom: 1px solid var(--border-color); color: var(--ink-primary); }
.prose h3 { font-size: 17px; line-height: 1.4; margin: 24px 0 10px; color: var(--ink-primary); }
.prose p { margin: 0 0 14px; }
.prose hr { border: 0; border-top: 1px solid var(--border-color); margin: 28px 0; }
.prose img { max-width: 100%; height: auto; border-radius: var(--radius-md); }

.ui-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  overflow: hidden;
  border: 1px solid var(--border-color);
  margin: 3px 4px 3px 0;
  vertical-align: middle;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}
.ui-badge-lg { font-size: 13px; border-radius: 8px; margin: 4px 5px; }
.ui-badge-k { background: var(--bg-subtle); color: var(--ink-secondary); padding: 4px 8px; }
.ui-badge-v { padding: 4px 9px; color: #ffffff; }
.ui-badge-lg .ui-badge-k, .ui-badge-lg .ui-badge-v { padding: 6px 11px; }
.ui-badge-emerald .ui-badge-v { background: #10b981; }
.ui-badge-teal .ui-badge-v { background: #0f766e; }
.ui-badge-blue .ui-badge-v { background: #0284c7; }
.ui-badge-purple .ui-badge-v { background: #7c3aed; }
.ui-badge-amber .ui-badge-v { background: #d97706; }
.ui-badge-rose .ui-badge-v { background: #e11d48; }
.ui-badge-slate .ui-badge-v { background: #475569; }

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 16px 0 22px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
}
.prose table { width: 100%; border-collapse: collapse; font-size: 14px; }
.prose th, .prose td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  text-align: left;
  vertical-align: top;
}
.prose th:last-child, .prose td:last-child { border-right: 0; }
.prose tr:last-child td { border-bottom: 0; }
.prose thead th { background: var(--bg-subtle); color: var(--ink-primary); font-weight: 700; white-space: nowrap; }
.prose tbody tr:hover td { background: rgba(15, 118, 110, 0.03); }

.admonition {
  margin: 18px 0;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--brand);
  background: var(--bg-subtle);
  font-size: 14.5px;
}
.admonition-title { font-weight: 700; margin: 0 0 6px !important; display: flex; align-items: center; gap: 8px; color: var(--ink-primary); }
.admonition p:last-child { margin-bottom: 0; }
.admonition.tip { border-left-color: #10b981; background: rgba(16, 185, 129, 0.08); }
.admonition.note { border-left-color: #0284c7; background: rgba(2, 132, 199, 0.07); }
.admonition.warning { border-left-color: #d97706; background: rgba(217, 119, 6, 0.08); }
.admonition.danger { border-left-color: #e11d48; background: rgba(225, 29, 72, 0.08); }

.flow-stepper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: 12px;
  margin: 18px 0 22px;
}
.flow-step {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.flow-step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.flow-step-body { font-size: 13.5px; line-height: 1.45; color: var(--ink-primary); font-weight: 500; }

.decision-tree-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin: 20px 0 26px;
}
.decision-root {
  text-align: center;
  font-weight: 700;
  font-size: 15px;
  background: var(--brand);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  max-width: 440px;
  margin: 0 auto 18px;
}
.decision-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.decision-node {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-decoration: none !important;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.decision-node:hover { transform: translateY(-2px); border-color: var(--brand); box-shadow: var(--shadow-md); }
.decision-cond { font-size: 12.5px; color: var(--ink-muted); font-weight: 600; }
.decision-arrow { font-size: 11px; color: var(--brand); font-family: var(--font-mono); }
.decision-target { font-size: 15px; color: var(--ink-primary); }
.decision-sub { font-size: 12px; color: var(--ink-secondary); }

.wizard-card {
  background: linear-gradient(135deg, var(--brand-soft), rgba(2, 132, 199, 0.06));
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  margin: 20px 0 28px;
}
.wizard-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.wizard-head h2 { margin: 0 !important; border: 0 !important; padding: 0 !important; font-size: 18px !important; }
.wizard-controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; margin-bottom: 14px; }
.wizard-field label { display: block; font-size: 12px; font-weight: 700; color: var(--ink-secondary); margin-bottom: 5px; }
.wizard-field select {
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-surface);
  color: var(--ink-primary);
  font-size: 13.5px;
}
.wizard-results { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.wiz-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  text-decoration: none !important;
}
.wiz-item:hover { border-color: var(--brand); }
.wiz-item strong { color: var(--ink-primary); font-size: 14px; }
.wiz-item span { font-size: 12px; color: var(--ink-secondary); }

.check-item { display: inline-flex; align-items: baseline; gap: 8px; cursor: pointer; }
.check-item input:checked + span { text-decoration: line-through; color: var(--ink-muted); }

.page-nav { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border-color); display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.page-nav-card {
  border: 1px solid var(--border-color);
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-decoration: none !important;
  transition: border-color 0.15s ease;
}
.page-nav-card:hover { border-color: var(--brand); }
.page-nav-card.next { text-align: right; }
.page-nav-dir { font-size: 11.5px; color: var(--ink-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.page-nav-title { font-size: 14.5px; font-weight: 600; color: var(--brand); }

/* Search Modal */
.search-modal {
  border: 0;
  padding: 0;
  background: rgba(9, 15, 23, 0.72);
  backdrop-filter: blur(6px);
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  z-index: 100;
}
.search-box {
  max-width: 680px;
  margin: 7vh auto 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 80vh;
}
.search-input-bar { display: flex; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--border-color); gap: 12px; }
.search-input-bar input { flex: 1; border: 0; background: none; font-size: 16px; color: var(--ink-primary); outline: none; }
.search-close-btn { border: 1px solid var(--border-color); background: var(--bg-subtle); color: var(--ink-secondary); border-radius: 6px; padding: 4px 10px; font-size: 12px; cursor: pointer; }
.search-results-list { overflow-y: auto; padding: 10px; display: flex; flex-direction: column; gap: 6px; }
.search-hit { display: block; padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid transparent; text-decoration: none !important; }
.search-hit:hover { background: var(--bg-subtle); border-color: var(--brand-border); }
.search-hit-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 3px; }
.search-hit-title { font-weight: 700; font-size: 14.5px; color: var(--ink-primary); }
.search-hit-group { font-size: 11px; padding: 2px 7px; border-radius: 999px; background: var(--brand-soft); color: var(--brand); }
.search-hit-snippet { font-size: 12.8px; color: var(--ink-secondary); line-height: 1.45; }

.site-footer { border-top: 1px solid var(--border-color); background: var(--bg-surface); padding: 32px 20px; font-size: 13px; color: var(--ink-muted); }
.footer-inner { max-width: 1440px; margin: 0 auto; display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }

@media (max-width: 1180px) {
  .layout-shell { grid-template-columns: 250px minmax(0, 1fr); }
  .sidebar-right { display: none; }
}
@media (max-width: 860px) {
  .menu-toggle { display: inline-flex; }
  .top-tabs { display: none; }
  .search-trigger { min-width: auto; }
  .search-trigger span:first-child { display: none; }
  .layout-shell { grid-template-columns: minmax(0, 1fr); padding: 16px 12px 48px; }
  .sidebar-left {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0;
    bottom: 0;
    width: 290px;
    background: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    padding: 16px;
    z-index: 60;
    max-height: none;
    box-shadow: var(--shadow-lg);
  }
  .sidebar-left.open { display: block; }
  .content-main { padding: 20px 16px; }
  .page-nav { grid-template-columns: 1fr; }
}