/* ZICHUANG — 官网样式 */

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--color-accent);
}

.container {
  width: var(--container);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #fff;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.2s;
}

.site-header.is-scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
  padding-block: 0.5rem;
  padding: 0 100px;
}

.logo {
  display: inline-block;
}

.logo img {
  height: 40px;
  width: auto;
}

.nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: 0.4rem 0.65rem;
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: 6px;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
  justify-content: center;
}

.nav-list a {
  font-size: 0.95rem;
  color: #333;
}

.nav-list a:hover {
  color: var(--color-accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav {
    justify-content: flex-end;
  }

  .nav-list {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: #fff;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s, opacity 0.25s, visibility 0.25s;
    z-index: 999;
  }

  .nav-list.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .header-phone span:not(.phone-icon) {
    display: none;
  }

  .header-actions .btn-sm {
    padding-inline: 0.85rem;
  }
}