/**
 * 统一分享入口、可访问对话面板与海报预览样式。
 * 复用全站靛蓝与暖铜点缀色，仅约束分享组件及其在页头、文章中的布局。
 */
.share-trigger { display: none; }
.has-sharing .share-trigger { display: inline-flex; }
.header-tools { display: flex; align-items: center; gap: 22px; }
.header-share, .hero-share { align-items: center; justify-content: center; gap: 8px; }
.header-share { padding: 9px 12px; background: var(--accent-soft); border: 1px solid var(--accent-line); color: var(--accent); border-radius: 7px; font: inherit; font-size: 12px; }
.header-share:hover, .header-share:focus { background: var(--accent); color: #fff; border-color: var(--accent); }
.header-share svg, .hero-share svg { width: 16px; height: 16px; }
.hero-actions { flex-wrap: wrap; }
.hero-share { padding: 0; background: transparent; border: 0; color: var(--accent); font: inherit; font-size: 13px; cursor: pointer; }
.hero-share:hover, .hero-share:focus { color: var(--accent-hover); background: transparent; }
.article-sharing { margin: 30px 0; padding: 24px; border: 1px solid var(--accent-line); border-radius: 10px; background: linear-gradient(120deg, var(--accent-soft), #fff 80%); }
.article-sharing h2 { margin: 8px 0 20px; font-size: 20px; }
.article-share-buttons { display: flex; flex-wrap: wrap; gap: 10px; }
.article-share-buttons button, .article-share-buttons a { align-items: center; justify-content: center; gap: 7px; padding: 10px 13px; border: 1px solid var(--accent-line); border-radius: 6px; background: #fff; color: var(--accent); font: inherit; font-size: 12px; text-decoration: none; line-height: 1.5; }
.article-share-buttons a { display: inline-flex; }
.article-share-buttons svg { width: 18px; height: 18px; }
.article-share-buttons :is(a,button):hover { background: var(--accent); color: #fff; }
.sharing-open { overflow: hidden; }
.share-modal { position: fixed; inset: 0; z-index: 100010; display: flex; align-items: center; justify-content: center; padding: 16px; }
.share-modal[hidden], .share-modal [hidden] { display: none !important; }
.share-backdrop { position: absolute; inset: 0; background: rgb(20 28 45 / 48%); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
.share-dialog { position: relative; box-sizing: border-box; width: 100%; max-width: 700px; max-height: calc(100vh - 32px); max-height: calc(100dvh - 32px); padding: 28px; overflow-y: auto; overscroll-behavior: contain; border: 1px solid var(--accent-line); border-radius: 14px; background: #fff; color: var(--ink); box-shadow: 0 20px 80px rgb(20 28 45 / 20%); }
.share-dialog-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.share-dialog-heading .eyebrow { font-size: 9px; letter-spacing: 3px; color: var(--accent); }
.share-dialog-heading h2 { margin: 7px 0 0; font-size: 24px; line-height: 1.5; }
.share-close { display: flex; align-items: center; justify-content: center; flex-shrink: 0; width: 36px; height: 36px; padding: 8px; border: 1px solid var(--line); border-radius: 50%; background: #fff; color: var(--muted); }
.share-close:hover { color: var(--ink); background: var(--surface); }
.share-close svg { width: 19px; height: 19px; }
.share-current-title { margin: 15px 0 20px; color: var(--muted); font-size: 13px; line-height: 1.7; overflow-wrap: anywhere; }
.share-platforms { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; }
.share-platforms button, .share-platforms a { display: flex; align-items: center; justify-content: center; gap: 9px; padding: 13px 8px; border: 1px solid var(--line); border-radius: 7px; background: #fff; color: var(--ink); font: inherit; font-size: 13px; line-height: 1.5; text-decoration: none; }
.share-platforms svg { width: 23px; height: 23px; color: var(--accent); flex-shrink: 0; }
.share-platforms :is(button,a):hover, .share-platforms [aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.share-guide { margin: 18px 0; padding: 14px 16px; background: var(--accent-soft); border-left: 3px solid var(--accent); border-radius: 4px; }
.share-guide h3 { margin: 0 0 5px; font-size: 14px; line-height: 1.6; }
.share-guide p { margin: 0; font-size: 12px; line-height: 1.9; color: var(--muted); }
.share-details { display: grid; grid-template-columns: 154px minmax(0,1fr); gap: 22px; align-items: start; }
.share-qr-wrap { text-align: center; }
.share-qr-wrap canvas { display: block; width: 154px; height: 154px; max-width: 100%; border: 1px solid var(--line); border-radius: 7px; }
.share-qr-wrap p { margin: 6px 0 0; font-size: 11px; color: var(--muted); }
.share-copy-fields label { display: block; margin: 0 0 7px; font-size: 11px; color: var(--muted); }
.share-link-row { display: flex; gap: 8px; margin-bottom: 14px; }
.share-copy-fields input, .share-copy-fields textarea { box-sizing: border-box; width: 100%; min-width: 0; padding: 9px; border: 1px solid var(--line); border-radius: 5px; background: var(--canvas); color: var(--ink); font: inherit; font-size: 11px; line-height: 1.7; }
.share-copy-fields textarea { resize: vertical; min-height: 84px; }
.share-link-row button, .share-copy-text { flex-shrink: 0; padding: 9px 11px; border: 1px solid var(--accent-line); border-radius: 5px; background: var(--accent-soft); color: var(--accent); font: inherit; font-size: 11px; }
.share-copy-text { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; }
.share-copy-text svg { width: 14px; height: 14px; }
.share-poster-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--line); }
.share-poster-toggle, #share-poster-download { display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 10px 14px; border: 1px solid var(--accent); border-radius: 6px; background: var(--accent); color: #fff; font: inherit; font-size: 12px; text-decoration: none; }
.share-poster-toggle svg { width: 18px; height: 18px; }
#share-poster-download { border-color: var(--warm-line); background: var(--warm-soft); color: var(--warm); }
.share-poster-toggle:hover { background: var(--accent-hover); color: #fff; }
.share-poster-preview { margin: 20px 0 0; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.share-poster-preview img { display: block; width: 100%; max-width: 360px; height: auto; margin: auto; box-shadow: var(--shadow); }
.share-poster-preview figcaption { margin-top: 12px; font-size: 11px; line-height: 1.8; text-align: center; color: var(--muted); }
.share-status { min-height: 18px; margin: 12px 0 0; font-size: 12px; line-height: 1.8; color: var(--accent); }
.share-noscript { padding: 18px 32px; overflow-wrap: anywhere; font-size: 12px; }
.share-modal :is(button,a,input,textarea):focus-visible, .share-trigger:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
@media(max-width: 900px) { .header-tools { gap: 15px; } .desktop-nav { gap: 20px; } }
@media(max-width: 620px) {
  .header-tools { gap: 12px; }
  .header-share { width: 34px; height: 34px; padding: 8px; }
  .header-share span { display: none; }
  .hero-share { font-size: 12px; }
  .article-sharing { padding: 19px; }
  .article-share-buttons { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 8px; }
  .article-share-buttons :is(button,a) { padding: 10px 5px; font-size: 11px; }
  .article-share-buttons svg { width: 16px; height: 16px; }
  .share-modal { padding: 10px; }
  .share-dialog { padding: 20px 16px; max-height: calc(100vh - 20px); max-height: calc(100dvh - 20px); }
  .share-dialog-heading h2 { font-size: 22px; }
  .share-current-title { margin: 12px 0 16px; font-size: 12px; }
  .share-platforms { gap: 8px; }
  .share-platforms button, .share-platforms a { padding: 12px 4px; gap: 6px; font-size: 12px; }
  .share-platforms svg { width: 19px; height: 19px; }
  .share-details { grid-template-columns: 112px minmax(0,1fr); gap: 12px; }
  .share-qr-wrap canvas { width: 112px; height: 112px; }
  .share-link-row { flex-wrap: wrap; gap: 6px; }
  .share-link-row button { padding: 6px 9px; }
  .share-poster-actions { gap: 10px; }
}
@media(max-width: 350px) {
  .share-platforms { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .share-details { grid-template-columns: 1fr; }
  .share-qr-wrap canvas { margin: auto; }
  .article-share-buttons { grid-template-columns: repeat(2,minmax(0,1fr)); }
}