/* 新爱算 · 超级博客 —— 留言组件样式（依赖 xb-core.css 的变量与基础控件）。 */
.xbc { margin: 32px 0; }
.xbc-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; margin-bottom: 14px; }
.xbc-title { margin: 0; font-size: 20px; line-height: 1.4; }
.xbc-sorts { display: inline-flex; gap: 2px; padding: 3px; border-radius: 10px; background: var(--xbc-soft); border: 1px solid var(--xbc-border); }
.xbc-sort { min-height: 30px; padding: 2px 12px; border: 0; border-radius: 7px; background: transparent; color: var(--xbc-muted); font: inherit; font-size: 13px; cursor: pointer; }
.xbc-sort:hover { color: var(--xbc-text); }
.xbc-sort-on { background: var(--xbc-bg); color: var(--xbc-text); font-weight: 600; box-shadow: 0 1px 3px rgba(0, 0, 0, .08); }
.xbc-target-reactions { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 18px; }
.xbc-target-reactions .xbc-reaction { min-height: 34px; padding: 2px 12px; font-size: 15px; }

.xbc-form { margin-bottom: 22px; }
.xbc-form-reply { margin: 10px 0 14px; }
.xbc-identity { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-bottom: 8px; }
.xbc-me { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 14px; }
.xbc-me-avatar { width: 28px; height: 28px; }
.xbc-hp { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; opacity: 0; }
.xbc-editor { border: 1px solid var(--xbc-border); border-radius: var(--xbc-radius); background: var(--xbc-bg); transition: border-color .15s, box-shadow .15s; }
.xbc-editor:focus-within { border-color: var(--xbc-accent); box-shadow: 0 0 0 3px var(--xbc-accent-soft); }
.xbc-editor .xb-textarea { border: 0; box-shadow: none; border-radius: var(--xbc-radius) var(--xbc-radius) 0 0; min-height: 104px; }
.xbc-form-reply .xbc-editor .xb-textarea { min-height: 76px; }
.xbc-preview { min-height: 64px; max-height: 360px; overflow-y: auto; padding: 9px 12px; border-top: 1px dashed var(--xbc-border); background: var(--xbc-soft); transition: opacity .15s; overflow-wrap: anywhere; }
.xbc-preview.xbc-preview-stale { opacity: .6; }
.xbc-preview > :first-child { margin-top: 0; }
.xbc-preview > :last-child { margin-bottom: 0; }
.xbc-preview-note { margin: 0; color: var(--xbc-muted); font-size: 13px; }
.xbc-preview-toggle[aria-pressed="true"] { color: var(--xbc-accent); }
@media (prefers-reduced-motion: reduce) { .xbc-preview { transition: none; } }
.xbc-toolbar { display: flex; align-items: center; gap: 2px; padding: 2px 6px; border-top: 1px solid var(--xbc-border); }
.xbc-grow { flex: 1; }
.xbc-counter { font-size: 12px; color: var(--xbc-muted); font-variant-numeric: tabular-nums; padding: 0 4px; }
.xbc-counter.xbc-over { color: var(--xbc-danger); font-weight: 600; }
.xbc-thumbs { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 10px; }
.xbc-thumbs:not(:empty) { padding: 8px 10px; }
.xbc-thumb { position: relative; width: 72px; height: 72px; border-radius: 6px; overflow: hidden; background: var(--xbc-soft); display: flex; align-items: center; justify-content: center; font-size: 12px; color: var(--xbc-muted); }
.xbc-thumb img { width: 100%; height: 100%; object-fit: cover; }
.xbc-thumb-x { position: absolute; top: 2px; right: 2px; width: 22px; height: 22px; border: 0; border-radius: 50%; background: rgba(0, 0, 0, .6); color: #fff; cursor: pointer; line-height: 22px; padding: 0; }
.xbc-form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 8px; }
.xbc-notice { padding: 12px 14px; border-radius: var(--xbc-radius); background: var(--xbc-soft); border: 1px solid var(--xbc-border); color: var(--xbc-muted); font-size: 14px; margin-bottom: 20px; }
.xbc-notice a { color: var(--xbc-text); font-weight: 600; }
.xbc-status { padding: 24px 0; text-align: center; color: var(--xbc-muted); font-size: 14px; }

.xbc-thread { padding: 16px 0; border-top: 1px solid var(--xbc-border); }
.xbc-thread:first-child { border-top: 0; }
.xbc-item { display: flex; gap: 12px; scroll-margin-top: 80px; }
.xbc-item + .xbc-item { margin-top: 14px; }
.xbc-children > .xbc-item { margin-top: 14px; }
.xbc-children:empty { display: none; }
.xbc-avatar { width: 40px; height: 40px; }
.xbc-children .xbc-avatar { width: 32px; height: 32px; }
.xbc-main { flex: 1; min-width: 0; }
.xbc-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; font-size: 13px; color: var(--xbc-muted); }
.xbc-name { font-size: 14px; font-weight: 600; color: var(--xbc-text); text-decoration: none; }
a.xbc-name:hover { text-decoration: underline; }
.xbc-time { white-space: nowrap; }
.xbc-sub { font-size: 12px; color: var(--xbc-muted); }
.xbc-reply-to { margin-top: 2px; font-size: 13px; color: var(--xbc-muted); }
.xbc-body { margin-top: 4px; overflow-wrap: anywhere; word-break: break-word; }
.xbc-body p { margin: 0 0 8px; }
.xbc-body p:last-child { margin-bottom: 0; }
.xbc-body a { color: var(--xbc-accent); }
[data-theme=dark] .xbc-body a { color: color-mix(in srgb, var(--xbc-accent) 80%, #fff); }
.xbc-body blockquote { margin: 6px 0; padding: 2px 12px; border-left: 3px solid var(--xbc-border); color: var(--xbc-muted); }
.xbc-body code { padding: 1px 5px; border-radius: 4px; background: var(--xbc-soft); font-size: .9em; }
.xbc-body pre { overflow-x: auto; padding: 10px 12px; border-radius: 6px; background: var(--xbc-soft); font-size: 13px; }
.xbc-body pre code { padding: 0; background: none; }
.xbc-body ul, .xbc-body ol { margin: 4px 0 8px; padding-left: 22px; }
.xbc-body img:not(.xb-emoji):not(.xb-gif) { max-width: 100%; height: auto; }
.xbc-deleted .xbc-body { color: var(--xbc-muted); font-style: italic; }
.xbc-attachments { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.xbc-attachments img { display: block; width: 120px; height: 120px; object-fit: cover; border-radius: 6px; background: var(--xbc-soft); }
.xbc-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 4px; margin-top: 4px; margin-left: -8px; }
.xbc-reactions { display: inline-flex; flex-wrap: wrap; gap: 4px; padding-left: 8px; }
.xbc-reaction { display: inline-flex; align-items: center; gap: 4px; min-height: 28px; padding: 0 9px; border: 1px solid var(--xbc-border); border-radius: 14px; background: var(--xbc-bg); color: var(--xbc-text); font: inherit; font-size: 13px; cursor: pointer; }
.xbc-reaction:hover { background: var(--xbc-hover); }
.xbc-reaction img { width: 18px; height: 18px; object-fit: contain; }
.xbc-reaction-emoji { font-size: 15px; line-height: 1; }
.xbc-reacted { border-color: var(--xbc-accent); background: var(--xbc-accent-soft); }
.xbc-reaction-count { font-variant-numeric: tabular-nums; }
.xbc-reaction-count:empty { display: none; }
.xbc-reaction-add { color: var(--xbc-muted); }
.xbc-reaction-menu { position: absolute; z-index: 2147482000; display: flex; gap: 2px; padding: 4px; background: var(--xbc-bg); border: 1px solid var(--xbc-border); border-radius: 22px; box-shadow: var(--xbc-shadow); }
.xbc-menu-img { width: 26px; height: 26px; object-fit: contain; }
.xbc-children { margin-top: 2px; padding-left: 0; }
.xbc-children .xbc-children { padding-left: 0; }
.xbc-item .xbc-children { border-left: 2px solid var(--xbc-border); padding-left: 14px; margin-left: -6px; }
.xbc-pinned > .xbc-main > .xbc-meta::before { content: "📌"; font-size: 12px; }
.xbc-highlight > .xbc-main > .xbc-body { animation: xbc-flash 2s ease-out 1; border-radius: 4px; }
@keyframes xbc-flash { from { background: var(--xbc-accent-soft); } to { background: transparent; } }
.xbc-more-replies { margin: 8px 0 0 52px; }
.xbc-more { margin-top: 12px; }
.xbc-edit { margin-top: 6px; }

@media (max-width: 639px) {
  .xbc-identity { grid-template-columns: 1fr; }
  .xbc-item { gap: 10px; }
  .xbc-avatar { width: 34px; height: 34px; }
  .xbc-children .xbc-avatar { width: 28px; height: 28px; }
  .xbc-item .xbc-children { padding-left: 10px; margin-left: -4px; }
  .xbc-client { display: none; }
  .xbc-sort { min-height: 40px; }
  .xbc-reaction { min-height: 40px; padding: 0 12px; }
  .xbc-attachments img { width: 96px; height: 96px; }
  .xbc-more-replies { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) { .xbc-highlight > .xbc-main > .xbc-body { animation: none; background: var(--xbc-accent-soft); } }
.xbc-body a:not([href]) { color: inherit; text-decoration: none; }