/* 教學網站共用外框（首頁、靜態教學頁）：頁尾、LINE 浮動按鈕、站內搜尋視窗。和 mkt.lot.tw 主站同一套做法。
 * 頁尾與 LINE 按鈕的 HTML 由 tools/seo_site.py 產生（SITE_FOOTER、LINE_FAB）；搜尋視窗由 assets/site.js 產生。 */
.site-footer { text-align: left; border-top: 1px solid var(--line); margin-top: 48px; padding: 36px 16px 96px; color: var(--muted); font-size: 14px; }
.site-footer .fwrap { max-width: 1080px; margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
.site-footer h2 { font-size: 12px; letter-spacing: .14em; color: var(--ink); margin: 0 0 10px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; line-height: 2; }
.site-footer a { color: inherit; text-decoration: none; }
.site-footer a:hover { color: var(--ink); text-decoration: underline; }
.site-footer .fbrand b { display: block; color: var(--ink); font-size: 15px; margin-bottom: 6px; }
.site-footer .fbrand p { margin: 0 0 14px; line-height: 1.7; }
.site-footer .news { border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; background: var(--card); margin: 0 0 14px; }
.site-footer .news b { display: block; color: var(--ink); margin-bottom: 4px; }
.site-footer .news a.btn { display: inline-block; margin-top: 8px; background: var(--amber); color: #111; font-weight: 800; padding: 7px 16px; border-radius: 999px; text-decoration: none; }
.site-footer .fcopy { max-width: 1080px; margin: 24px auto 0; font-size: 12px; text-align: center; }
.site-footer .pref { margin: 0 0 10px; }
@media (max-width: 720px) { .site-footer .fwrap { grid-template-columns: 1fr 1fr; } .site-footer .fbrand { grid-column: 1 / -1; } }

.line-fab { position: fixed; left: 16px; bottom: 20px; z-index: 60; display: inline-flex; align-items: center; gap: 6px; padding: 12px 16px; border-radius: 999px;
  background: #06C755; color: #fff; font-weight: 700; font-size: 15px; text-decoration: none; box-shadow: 0 6px 18px rgba(0,0,0,.22); }
.line-fab:hover { filter: brightness(1.05); }
@media (max-width: 600px) { .line-fab { padding: 12px; } .line-fab span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); } }
html.iglb-lock .line-fab, html:has(.search-dialog[open]) .line-fab { display: none; }

.search-open { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); background: var(--card); color: var(--muted); border-radius: 999px;
  padding: 7px 14px; font: inherit; font-size: 14px; cursor: pointer; white-space: nowrap; }
.search-open:hover { border-color: var(--amber); color: var(--ink); }
.search-open kbd { font: inherit; font-size: 11px; border: 1px solid var(--line); border-radius: 4px; padding: 0 5px; }
@media (max-width: 600px) { .search-open kbd, .search-open .t { display: none; } }
.search-dialog { width: min(640px, calc(100vw - 32px)); max-height: min(80vh, 640px); border: 0; border-radius: 16px; padding: 0; background: var(--card); color: var(--ink);
  box-shadow: 0 20px 60px rgba(0,0,0,.35); margin: 10vh auto auto; }
.search-dialog::backdrop { background: rgba(0,0,0,.5); }
.search-form { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.search-input { flex: 1; border: 0; outline: 0; background: transparent; color: inherit; font: inherit; font-size: 17px; min-width: 0; }
.search-close { border: 1px solid var(--line); background: transparent; color: var(--muted); border-radius: 6px; font: inherit; font-size: 12px; padding: 3px 8px; cursor: pointer; }
.search-body { padding: 12px 16px 16px; overflow: auto; max-height: calc(min(80vh, 640px) - 60px); }
.search-body .small { font-size: 13px; color: var(--muted); margin: 4px 0 8px; }
.search-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.search-list { list-style: none; margin: 0; padding: 0; }
.search-list a { display: block; padding: 10px 12px; border-radius: 10px; color: inherit; text-decoration: none; }
.search-list li[aria-selected="true"] a, .search-list a:hover { background: rgba(255,182,0,.14); }
.search-list b { display: block; font-size: 15px; margin-bottom: 2px; }
.search-list .type { font-size: 11px; color: #9a6700; font-weight: 700; margin-right: 6px; }
.search-list .ex { font-size: 13px; color: var(--muted); line-height: 1.6; }
.search-list mark { background: rgba(255,182,0,.45); color: inherit; border-radius: 3px; }
.search-empty a { color: #9a6700; }
.site-footer .fbrand p a { color: #9a6700; text-decoration: underline; }
/* Google「新增至偏好來源」按鈕：publisher.js 載入完成前，文字會繼承外層顏色（深色模式是淺色字）→ 白色膠囊上變成一片空白。
   固定深色字、白底膠囊，載入前（備用連結）與載入後都看得到；和 mkt.lot.tw 相同做法 */
.pref[google-add-preferred-source-btn] { display: inline-block; color: #1f1f1f; color-scheme: light; background: #fff; border-radius: 20px; }
.pref[google-add-preferred-source-btn] > a { display: inline-block; padding: 7px 14px; color: #1f1f1f !important; text-decoration: none; font-size: 14px; }
.pref[google-add-preferred-source-btn][data-initialized] { background: #fff; border-radius: 20px; }