/* ═══════════════════════════════════════════════════════════
 * 指印咖啡 · 振华文脉 统一门户导航样式 v0.1
 * 复用 zhiyin_v4.css 变量（--zhiyin-green / --cream / --copper）
 * 桌面 6 项横排 + 移动汉堡（<768px）
 * ═══════════════════════════════════════════════════════════ */

#zhiyin-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--cream, #F5F0E8);
  border-bottom: 1px solid rgba(139, 110, 79, .18);
  box-shadow: 0 1px 8px rgba(0, 0, 0, .04);
}

.zhiyin-nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  position: relative;
}

.zhiyin-nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.zhiyin-nav-links li { margin: 0; }

.zhiyin-nav-link {
  display: inline-block;
  padding: 10px 14px;
  font-size: 15px;
  font-family: var(--kaiti, 'LXGW WenKai', serif);
  color: var(--roast-900, #2B2320);
  text-decoration: none;
  border-radius: 6px;
  transition: background .18s ease, color .18s ease;
  white-space: nowrap;
}

.zhiyin-nav-link:hover {
  background: rgba(61, 105, 71, .08);
  color: var(--zhiyin-green, #3D6947);
}

.zhiyin-nav-link.active {
  color: var(--zhiyin-green, #3D6947);
  font-weight: 600;
  background: rgba(61, 105, 71, .10);
}

/* ── 移动汉堡 ── */
.zhiyin-nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.zhiyin-nav-burger span {
  display: block;
  height: 2px;
  width: 22px;
  margin: 0 auto;
  background: var(--roast-900, #2B2320);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}

.zhiyin-nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.zhiyin-nav-burger.open span:nth-child(2) { opacity: 0; }
.zhiyin-nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── 移动端：汉堡显示 + 下拉面板 ── */
@media (max-width: 767px) {
  .zhiyin-nav { min-height: 52px; padding: 0 12px; }
  .zhiyin-nav-burger { display: flex; }

  .zhiyin-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--cream, #F5F0E8);
    border-bottom: 1px solid rgba(139, 110, 79, .18);
    box-shadow: 0 8px 16px rgba(0, 0, 0, .06);
    padding: 8px 12px 12px;
    gap: 2px;
  }

  .zhiyin-nav-links.open { display: flex; }

  .zhiyin-nav-link {
    display: block;
    padding: 12px 14px;
    font-size: 16px;
    border-radius: 6px;
  }
}