/* ============================================================
   Novelor Site Chrome — 全站统一导航 / 页脚 / 按钮
   风格：Apple 简约黑白 · 禁用蓝色 · 大留白
   本文件在页面内联样式之后加载，用于统一覆盖 accent 色
   ============================================================ */

:root {
  /* 文字 */
  --nv-ink: #1d1d1f;
  --nv-ink-2: #6e6e73;
  --nv-ink-3: #86868b;
  /* 背景 */
  --nv-bg: #ffffff;
  --nv-bg-2: #f5f5f7;
  --nv-bg-3: #ececed;
  /* 线条 */
  --nv-line: #d2d2d7;
  --nv-line-2: #e8e8ed;
  /* 圆角 */
  --nv-r: 14px;
  --nv-r-lg: 18px;
  /* 覆盖页内 accent：统一为中性灰，去掉蓝紫 */
  --accent: #6e6e73;
}

/* ---------- 导航 ---------- */
.nv-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--nv-line-2);
}
.nv-nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nv-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--nv-ink);
  text-decoration: none;
  flex-shrink: 0;
}
.nv-logo:hover { color: var(--nv-ink); }
.nv-logo svg { display: block; }

.nv-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-right: auto;
}
.nv-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--nv-ink);
  text-decoration: none;
  opacity: 0.72;
  transition: opacity 0.18s;
  white-space: nowrap;
}
.nv-link:hover { opacity: 1; color: var(--nv-ink); }
.nv-link.active {
  opacity: 1;
  font-weight: 600;
}

.nv-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nv-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--nv-ink);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--nv-ink);
  transition: opacity 0.18s, background 0.18s;
  white-space: nowrap;
}
.nv-btn:hover { opacity: 0.86; color: #fff; }
.nv-btn.ghost {
  background: transparent;
  color: var(--nv-ink);
  border-color: var(--nv-line);
}
.nv-btn.ghost:hover { background: var(--nv-bg-2); opacity: 1; color: var(--nv-ink); }
.nv-link-btn {
  font-size: 14px;
  color: var(--nv-ink);
  text-decoration: none;
  opacity: 0.72;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font-family: inherit;
}
.nv-link-btn:hover { opacity: 1; }

/* 用户菜单（登录态头像下拉） */
.nv-user { position: relative; }
.nv-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--nv-line);
  background: var(--nv-bg-2);
  color: var(--nv-ink);
  font-size: 14px; font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  padding: 0;
}
.nv-avatar:hover { background: #ececed; }
.nv-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 180px;
  background: #fff;
  border: 1px solid var(--nv-line);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.10);
  padding: 6px;
  display: none;
  z-index: 1200;
}
.nv-user.open .nv-menu { display: block; }
.nv-menu-head {
  padding: 10px 12px 8px;
  border-bottom: 1px solid var(--nv-line);
  margin-bottom: 6px;
  display: flex; flex-direction: column; gap: 2px;
}
.nv-menu-head strong { font-size: 14px; color: var(--nv-ink); font-weight: 600; }
.nv-menu-head span { font-size: 12px; color: var(--nv-ink-2); word-break: break-all; }
.nv-menu a {
  display: block;
  padding: 8px 12px;
  font-size: 13.5px;
  color: var(--nv-ink);
  text-decoration: none;
  border-radius: 8px;
}
.nv-menu a:hover { background: var(--nv-bg-2); }
.nv-menu a.nv-logout { color: #d70015; border-top: 1px solid var(--nv-line); border-radius: 0 0 8px 8px; margin-top: 4px; }

/* 汉堡（移动端） */
.nv-burger {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nv-burger span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--nv-ink);
  position: relative;
}
.nv-burger span::before,
.nv-burger span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.5px;
  background: var(--nv-ink);
}
.nv-burger span::before { top: -6px; }
.nv-burger span::after { top: 6px; }

.nv-mobile {
  display: none;
  border-top: 1px solid var(--nv-line-2);
  background: #fff;
  padding: 8px 24px 20px;
}
.nv-mobile.open { display: block; }
.nv-mobile a {
  display: block;
  padding: 12px 0;
  font-size: 16px;
  color: var(--nv-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--nv-line-2);
}
.nv-mobile .nv-btn { margin-top: 16px; width: 100%; }

/* ---------- 页脚 ---------- */
.nv-footer {
  border-top: 1px solid var(--nv-line-2);
  background: var(--nv-bg-2);
  padding: 56px 0 32px;
  margin-top: 0;
}
.nv-footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}
.nv-footer-cols {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 32px;
}
.nv-footer-brand {
  font-size: 15px;
  font-weight: 700;
  color: var(--nv-ink);
  margin-bottom: 10px;
}
.nv-footer-slogan {
  font-size: 13px;
  color: var(--nv-ink-2);
  line-height: 1.7;
  max-width: 280px;
  margin: 0;
}
.nv-footer h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--nv-ink);
  margin: 0 0 14px;
}
.nv-footer ul { list-style: none; margin: 0; padding: 0; }
.nv-footer li { margin-bottom: 9px; }
.nv-footer li a {
  font-size: 13px;
  color: var(--nv-ink-2);
  text-decoration: none;
  transition: color 0.18s;
}
.nv-footer li a:hover { color: var(--nv-ink); }
.nv-footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--nv-line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--nv-ink-3);
}

/* ---------- 通用按钮（供页面直接复用） ---------- */
.nv-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: 999px;
  background: var(--nv-ink);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.18s;
}
.nv-cta:hover { opacity: 0.86; color: #fff; }
.nv-cta.secondary {
  background: var(--nv-bg-2);
  color: var(--nv-ink);
}
.nv-cta.secondary:hover { background: var(--nv-bg-3); color: var(--nv-ink); }

/* ---------- 去蓝：统一站内心蓝色 ---------- */
.hero-eyebrow,
.eyebrow-blue,
.agent-card .role-tag,
.step-card .step-label {
  color: var(--nv-ink-2) !important;
}
.terminal-body .t-status .pulse { background: #9a9aa0; }

/* ---------- 去蓝兜底 ---------- */
/* design-system.css 的 primary 是蓝紫，营销站统一改黑白（仅作用于加载了 site.css 的页面） */
.btn-primary, a.btn-primary {
  background: #1d1d1f !important;
  border-color: #1d1d1f !important;
  color: #fff !important;
}
.btn-primary:hover, a.btn-primary:hover { background: #000 !important; color: #fff !important; }
.btn-secondary {
  background: var(--nv-bg-2) !important;
  border-color: var(--nv-line-2) !important;
  color: var(--nv-ink) !important;
}
.btn-secondary:hover { background: var(--nv-bg-3) !important; color: var(--nv-ink) !important; }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .nv-links { display: none; }
  .nv-burger { display: flex; }
  .nv-actions .nv-link-btn,
  .nv-actions .nv-btn.ghost { display: none; }
  .nv-footer-cols { grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 520px) {
  .nv-footer-cols { grid-template-columns: 1fr; }
}