/* ============================================================
   en2.css — English Site v2 (foreigner-focused)
   Standalone stylesheet for /en-v2/ — does not affect main site
   ============================================================ */

:root {
  --en2-navy: #0f2a43;
  --en2-blue: #1a4b7a;
  --en2-gold: #c9a227;
  --en2-light: #f5f7fa;
  --en2-gray: #5a6b7c;
  --en2-border: #e2e8f0;
}

body.en2 {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #1e293b;
  line-height: 1.7;
  background: #fff;
}

body.en2 * { box-sizing: border-box; }

/* ---------- Nav ---------- */
.en2-nav {
  background: var(--en2-navy);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(15,42,67,.15);
}
.en2-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}
.en2-brand { text-decoration: none; display: flex; flex-direction: column; line-height: 1.25; }
.en2-brand-name { color: #fff; font-weight: 800; font-size: 1.2rem; letter-spacing: .02em; }
.en2-brand-firm { color: rgba(255,255,255,.65); font-size: .72rem; }
.en2-nav-links {
  display: flex; list-style: none; margin: 0; padding: 0; gap: 22px; align-items: center;
}
.en2-nav-links a {
  color: rgba(255,255,255,.88); text-decoration: none; font-size: .9rem; font-weight: 500;
  transition: color .2s;
}
.en2-nav-links a:hover { color: var(--en2-gold); }
.en2-nav-links .en2-lang-zh {
  border: 1px solid rgba(255,255,255,.4); border-radius: 4px; padding: 3px 10px; font-size: .8rem;
}
.en2-nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.4rem; cursor: pointer; }

/* ---------- Layout ---------- */
.en2-content, .en2-page .en2-content {
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}
.en2-content h1 { font-size: 2.1rem; line-height: 1.25; color: var(--en2-navy); margin: 0 0 12px; }
.en2-content h2 {
  font-size: 1.5rem; color: var(--en2-navy); margin: 48px 0 14px;
  padding-bottom: 8px; border-bottom: 3px solid var(--en2-gold);
}
.en2-content h3 { font-size: 1.15rem; color: var(--en2-navy); margin: 28px 0 10px; }
.en2-content p { margin: 0 0 16px; color: #334155; }
.en2-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 16px auto;
  display: block;
}
.en2-content ul, .en2-content ol { margin: 0 0 16px; padding-left: 24px; color: #334155; }
.en2-content li { margin-bottom: 6px; }
.en2-content a { color: var(--en2-blue); }
.en2-content blockquote {
  border-left: 4px solid var(--en2-gold); margin: 20px 0; padding: 12px 20px;
  background: var(--en2-light); color: #475569; border-radius: 0 6px 6px 0;
}
.en2-content table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: .92rem; }
.en2-content th, .en2-content td { border: 1px solid var(--en2-border); padding: 10px 14px; text-align: left; }
.en2-content th { background: var(--en2-light); color: var(--en2-navy); font-weight: 600; }
.en2-content code { background: var(--en2-light); padding: 2px 6px; border-radius: 4px; font-size: .88em; }
.en2-content hr { border: none; border-top: 1px solid var(--en2-border); margin: 40px 0; }

.en2-badge {
  display: inline-block; background: var(--en2-light); border: 1px solid var(--en2-border);
  border-radius: 20px; padding: 8px 18px; font-size: .88rem; color: var(--en2-navy); margin: 8px 0 24px;
}

/* ---------- CTA block ---------- */
.en2-cta {
  background: linear-gradient(135deg, var(--en2-navy), var(--en2-blue));
  color: #fff; border-radius: 12px; padding: 32px 36px; margin: 40px 0; text-align: center;
}
.en2-cta h3 { color: #fff; margin: 0 0 10px; font-size: 1.35rem; }
.en2-cta p { color: rgba(255,255,255,.85); margin: 0 0 20px; }
.en2-cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.en2-btn {
  display: inline-block; padding: 12px 26px; border-radius: 8px; text-decoration: none;
  font-weight: 600; font-size: .95rem; transition: transform .15s, box-shadow .15s;
}
.en2-btn:hover { transform: translateY(-2px); }
.en2-btn-primary { background: var(--en2-gold); color: var(--en2-navy); box-shadow: 0 4px 14px rgba(201,162,39,.35); }
.en2-btn-outline { border: 1.5px solid rgba(255,255,255,.7); color: #fff; }

/* ---------- Article list ---------- */
.en2-article-list { margin-top: 24px; display: grid; gap: 20px; }
.en2-article-card {
  border: 1px solid var(--en2-border); border-radius: 10px; padding: 24px;
  background: #fff; transition: box-shadow .2s;
}
.en2-article-card:hover { box-shadow: 0 8px 24px rgba(15,42,67,.1); }
.en2-article-card h3 { margin: 0 0 8px; }
.en2-article-card h3 a { color: var(--en2-navy); text-decoration: none; }
.en2-article-card h3 a:hover { color: var(--en2-blue); }
.en2-article-card p { margin: 0 0 12px; color: var(--en2-gray); font-size: .95rem; }
.en2-read-more { color: var(--en2-blue); font-weight: 600; text-decoration: none; font-size: .9rem; }
.en2-read-more:hover { text-decoration: underline; }

/* ---------- Footer ---------- */
.en2-footer { background: var(--en2-navy); color: rgba(255,255,255,.8); margin-top: 40px; }
.en2-footer-inner { max-width: 1100px; margin: 0 auto; padding: 48px 24px 24px; }
.en2-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.en2-footer h4 { color: #fff; margin: 0 0 12px; font-size: 1rem; }
.en2-footer p { margin: 0; font-size: .9rem; line-height: 1.8; color: rgba(255,255,255,.75); }
.en2-footer a { color: var(--en2-gold); text-decoration: none; }
.en2-footer a:hover { text-decoration: underline; }
.en2-footer-bottom {
  border-top: 1px solid rgba(255,255,255,.15); margin-top: 40px; padding-top: 18px;
  font-size: .82rem; color: rgba(255,255,255,.55);
}
.en2-footer-bottom a { color: rgba(255,255,255,.8); }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .en2-nav-toggle { display: block; }
  .en2-nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--en2-navy); flex-direction: column; padding: 16px 24px; gap: 14px; align-items: flex-start;
  }
  .en2-nav-links.open { display: flex; }
  .en2-content { padding: 32px 18px 48px; }
  .en2-content h1 { font-size: 1.6rem; }
  .en2-content h2 { font-size: 1.25rem; }
  .en2-footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .en2-cta { padding: 26px 20px; }
  .en2-cta-buttons { flex-direction: column; }
  .en2-btn { width: 100%; text-align: center; }
}