/* == css/app/components.css · 由 css/style.css L53-121 原样拆分，规则与顺序未动 == */

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  padding: 13px 28px;
  transition: all 0.15s ease;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-hover); }
.btn-outline {
  background: #fff;
  color: var(--black);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--gray-3); }
.btn-dark { background: var(--black); color: #fff; }
.btn-dark:hover { background: #2d2d33; }

/* ---------- 顶部导航 ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--blue);
  display: inline-flex; align-items: center; justify-content: center;
  flex: none; overflow: hidden;
}
.brand-logo img { width: 100%; height: 100%; object-fit: cover; border-radius: inherit; display: block; background: #fff; }
.brand-name { font-size: 17px; font-weight: 700; color: var(--black); }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a { font-size: 14px; color: var(--gray-1); transition: color 0.15s; }
.nav-links a:hover { color: var(--black); }
.nav-links a.active { color: var(--black); font-weight: 500; }

/* ---------- 顶栏用户区（登录后：头像 + 昵称 + 下拉菜单） ---------- */
.nav-auth { display: flex; align-items: center; flex: none; }
.nav-user { position: relative; }
.nav-user-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 5px 12px 5px 5px; border-radius: 999px;
  font-size: 14px; color: var(--black);
  transition: background 0.15s, box-shadow 0.15s;
}
.nav-user-btn:hover { background: var(--fill); }
.nav-user.open .nav-user-btn { background: var(--fill); }
.nav-avatar {
  width: 34px; height: 34px; border-radius: 50%; flex: none;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-hover) 100%);
  color: #fff; font-size: 14px; font-weight: 600; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  user-select: none;
}
.nav-user-name {
  font-weight: 500; max-width: 128px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.nav-caret { color: var(--gray-2); flex: none; transition: transform 0.15s; }
.nav-user.open .nav-caret { transform: rotate(180deg); }
.nav-user-menu {
  position: absolute; right: 0; top: calc(100% + 10px); z-index: 60;
  min-width: 168px; padding: 6px;
  background: #fff; border: 1px solid var(--border-light); border-radius: 12px;
  box-shadow: var(--shadow-float);
  animation: navMenuIn 0.14s ease;
}
@keyframes navMenuIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}
.nav-user-menu a,
.nav-user-menu button {
  display: flex; width: 100%; align-items: center; gap: 9px;
  padding: 9px 12px; border-radius: 8px;
  font-size: 13px; color: var(--gray-1); text-align: left;
  transition: background 0.12s, color 0.12s;
}
.nav-user-menu a:hover,
.nav-user-menu button:hover { background: var(--fill); color: var(--black); }
.nav-user-menu a svg,
.nav-user-menu button svg { flex: none; color: var(--gray-2); }
.nav-user-menu .nav-user-logout { color: var(--red); }
.nav-user-menu .nav-user-logout svg { color: var(--red); }
.nav-user-menu .nav-user-logout:hover { background: var(--red-50); color: var(--red); }
.nav-user-sep { height: 1px; background: var(--border-light); margin: 6px 6px; }

/* ---------- 类型标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
}
.tag-blue { background: var(--blue-50); color: var(--blue); }
.tag-red { background: var(--red-50); color: var(--red); }
.tag-teal { background: var(--teal-50); color: var(--teal); }
.tag-green { background: var(--green-50); color: var(--green); }
.tag-amber { background: var(--amber-50); color: var(--amber); }
.tag-gray { background: var(--fill); color: var(--gray-1); }