/* ============================================================
   全站公告通知（前台样式）
   形态：top = 顶部固定通栏；corner = 右下角悬浮卡片
   由 js/site-announcement.js 渲染；配置见 后台 → 设置导航中心 → 全站公告通知
   注意：本文件可能被未引入 xhs-design.css 的页面加载（如登录页），
        因此所有颜色都带 fallback 值。
   ============================================================ */

.xhs-ann {
  position: fixed;
  z-index: 70;
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-size: 13px;
  line-height: 1.55;
  box-sizing: border-box;
  animation: xhsAnnIn .32s ease both;
}

@keyframes xhsAnnIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: none; }
}

.xhs-ann.is-hiding {
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity .2s ease, transform .2s ease;
}

/* ---------- 关闭按钮（两种形态共用） ---------- */
.xhs-ann-close {
  flex: none;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  transition: background .16s ease, color .16s ease;
}

/* ============================================================
   形态一：顶部固定通栏
   ============================================================ */
.xhs-ann--top {
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 18px 9px 22px;
  color: #fff;
  background: linear-gradient(135deg, var(--xhs-red, #ff2442) 0%, var(--xhs-red-deep, #e0212f) 100%);
  box-shadow: 0 2px 12px rgba(255, 36, 66, .24);
}

.xhs-ann--top .xhs-ann-body {
  display: flex;
  flex: 1;
  min-width: 0;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 12px;
}

.xhs-ann--top .xhs-ann-title {
  font-weight: 700;
  letter-spacing: .3px;
}

.xhs-ann--top .xhs-ann-text {
  opacity: .96;
  word-break: break-word;
}

.xhs-ann--top .xhs-ann-link {
  flex: none;
  padding: 3px 13px;
  border: 1px solid rgba(255, 255, 255, .4);
  border-radius: var(--r-full, 999px);
  background: rgba(255, 255, 255, .18);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}

.xhs-ann--top .xhs-ann-link:hover {
  background: #fff;
  border-color: #fff;
  color: var(--xhs-red, #ff2442);
}

.xhs-ann--top .xhs-ann-close {
  color: rgba(255, 255, 255, .85);
}

.xhs-ann--top .xhs-ann-close:hover {
  background: rgba(255, 255, 255, .22);
  color: #fff;
}

/* ============================================================
   形态二：右下角悬浮卡片
   ============================================================ */
.xhs-ann--corner {
  right: 22px;
  bottom: 88px;
  width: min(330px, calc(100vw - 32px));
  padding: 16px 34px 16px 18px;
  border: 1px solid var(--xhs-line, #ececec);
  border-radius: var(--r-md, 12px);
  background: #fff;
  color: var(--xhs-text, #1f1f1f);
  box-shadow: 0 14px 36px rgba(31, 31, 31, .14);
  animation: xhsAnnCornerIn .34s cubic-bezier(.2, .8, .25, 1) both;
}

@keyframes xhsAnnCornerIn {
  from { opacity: 0; transform: translateY(10px) scale(.98); }
  to   { opacity: 1; transform: none; }
}

.xhs-ann--corner .xhs-ann-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.xhs-ann--corner .xhs-ann-title {
  position: relative;
  padding-left: 11px;
  font-size: 14px;
  font-weight: 700;
  color: var(--xhs-text, #1f1f1f);
}

.xhs-ann--corner .xhs-ann-title::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  width: 3px;
  height: 13px;
  margin-top: -6px;
  border-radius: 2px;
  background: var(--xhs-red, #ff2442);
}

.xhs-ann--corner .xhs-ann-text {
  color: var(--xhs-text-2, #5b5b5b);
  line-height: 1.65;
  word-break: break-word;
}

.xhs-ann--corner .xhs-ann-link {
  align-self: flex-start;
  margin-top: 2px;
  color: var(--xhs-red, #ff2442);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .16s ease;
}

.xhs-ann--corner .xhs-ann-link:hover {
  border-bottom-color: currentColor;
}

.xhs-ann--corner .xhs-ann-close {
  position: absolute;
  top: 8px;
  right: 8px;
  color: #b6b6b6;
}

.xhs-ann--corner .xhs-ann-close:hover {
  background: var(--xhs-red-soft, #fff0f2);
  color: var(--xhs-red, #ff2442);
}

/* ============================================================
   顶部通栏展开时：把站内固定导航整体下移，避免遮挡
   （--xhs-ann-h 由 JS 按通栏实际高度写入）
   ============================================================ */
html.xhs-ann-on .top-navbar {
  top: var(--xhs-ann-h, 0px);
}

html.xhs-ann-on .sidebar {
  top: var(--xhs-ann-h, 0px);
}

html.xhs-ann-on body[data-nav="top"] .page {
  padding-top: calc(var(--top-h, 64px) + var(--xhs-ann-h, 0px) + 24px);
}

/* 侧栏模式：顶部没有固定横导航，直接给内容区留白 */
html.xhs-ann-on body[data-nav="side"] .main-wrap {
  padding-top: var(--xhs-ann-h, 0px);
}

/* 小屏下顶部导航会折成两行，页面留白需同步加高 */
@media (max-width: 1180px) {
  html.xhs-ann-on body[data-nav="top"] .page {
    padding-top: calc(64px + 56px + 12px + var(--xhs-ann-h, 0px));
  }
}

@media (max-width: 760px) {
  .xhs-ann--top {
    padding: 8px 12px 8px 14px;
    font-size: 12px;
  }
  .xhs-ann--corner {
    right: 12px;
    bottom: 78px;
  }
}