/* nav.css — 雨泣工作室工具页共享导航（格式与工具中心 tools.html 一致） */
nav {
  position: sticky; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(13,27,42,0.96);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5%;
  height: 56px;
  overflow: visible;
}
.nav-brand {
  display: flex; align-items: center; gap: 4px;
  color: #fff; font-size: 1rem; font-weight: 600; letter-spacing: 0.02em;
  text-decoration: none; white-space: nowrap;
}
.nav-brand img {
  height: 34px; width: 34px; object-fit: contain; border-radius: 8px;
  flex-shrink: 0; margin-right: 6px;
}
.nav-brand span { color: #38bdf8; }
.nav-brand .nav-dot { color: #38bdf8; margin: 0 2px; }
.nav-brand .nav-sub { color: #94a3b8; font-weight: 500; }

.nav-links { display: flex; gap: 0.2rem; list-style: none; margin-left: 2rem; align-items: center; }
.nav-links > li { position: relative; }
.nav-links a, .nav-links .dropdown-trigger {
  color: #94a3b8; text-decoration: none; font-size: 0.88rem;
  transition: color 0.2s; padding: 8px 12px;
  display: flex; align-items: center; gap: 4px;
  cursor: pointer; background: none; border: none; font-family: inherit; white-space: nowrap;
}
.nav-links a:hover, .nav-links .dropdown-trigger:hover { color: #38bdf8; }
.nav-links a.active, .nav-links .dropdown-trigger.active { color: #38bdf8; }
.dropdown-trigger .arrow { font-size: 0.6rem; transition: transform 0.2s; }
.nav-links li:hover .dropdown-trigger .arrow { transform: rotate(180deg); }

.nav-dropdown {
  display: none; position: absolute; top: 100%; left: 0;
  background: rgba(13,27,42,0.98);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(56,189,248,0.12); border-radius: 8px;
  padding: 6px 0; min-width: 170px; box-shadow: 0 8px 32px rgba(0,0,0,0.3); z-index: 200;
}
.nav-links li:hover > .nav-dropdown { display: block; }
.nav-dropdown a {
  padding: 8px 16px; font-size: 0.84rem; display: block;
  color: #94a3b8; text-decoration: none;
}
.nav-dropdown a:hover { background: rgba(56,189,248,0.08); color: #38bdf8; }

.nav-right { display: flex; align-items: center; gap: 0; margin-left: auto; flex-shrink: 0; }

.lang-toggle {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.2);
  color: #94a3b8; border-radius: 6px; padding: 4px 14px; font-size: 0.82rem;
  cursor: pointer; transition: all 0.2s; font-family: inherit;
  margin-left: 1rem; white-space: nowrap; letter-spacing: 0.04em;
}
.lang-toggle:hover { border-color: #38bdf8; color: #38bdf8; }

.nav-hamburger {
  display: none; flex-direction: column; justify-content: center;
  width: 36px; height: 36px; background: none; border: none;
  padding: 6px; margin-left: auto; flex-shrink: 0; cursor: pointer;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px; background: #94a3b8;
  margin: 5px 0; border-radius: 2px; transition: all 0.3s;
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

@media (max-width: 768px) {
  nav { padding: 0 4%; flex-wrap: wrap; height: auto; min-height: 56px; }
  .nav-brand { font-size: .9rem; flex-shrink: 0; gap: 6px; height: 56px; }
  .nav-brand .nav-dot, .nav-brand .nav-sub { display: none !important; }
  .nav-hamburger { display: flex; order: 10; margin-left: 8px; }
  .nav-links {
    display: none !important; flex-direction: column; width: 100%; gap: 0;
    padding: 8px 0 12px; order: 20; margin-left: 0;
  }
  .nav-links.open { display: flex !important; }
  .nav-links > li { border-top: 1px solid rgba(255,255,255,0.06); }
  .nav-links a, .nav-links .dropdown-trigger { padding: 10px 0; font-size: 0.88rem; width: 100%; justify-content: flex-start; }
  .nav-dropdown {
    position: static !important; background: rgba(0,0,0,0.2) !important;
    border: none !important; border-radius: 0 !important; box-shadow: none !important;
    padding: 0 0 4px 16px !important; min-width: 0 !important;
  }
  .nav-links li:hover > .nav-dropdown { display: none; }
  .nav-dropdown.mob-open { display: block !important; }
  .nav-dropdown a { padding: 8px 0 !important; }
  .nav-right { margin-left: auto; }
  .lang-toggle { font-size: .72rem; padding: 3px 10px; margin-left: 6px; }
}