*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
/* 內容寬度跟著視窗：視窗越寬內容越寬（留 4% 邊），太寬時才停在 1600px，免得一行字長到難讀 */
:root { --content-w: min(96vw, 1600px); }
body {
  position: relative;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", sans-serif;
  background: var(--c-0f1117); color: var(--c-e2e8f0);
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; padding: 48px 16px 80px;
}
h1 { font-size: 1.6rem; font-weight: 700; letter-spacing: .04em; color: var(--c-f8fafc); margin-bottom: 6px; }
.subtitle { font-size: .85rem; color: var(--c-64748b); margin-bottom: 36px; }
.card {
  background: var(--c-1e2330); border: 1px solid var(--c-2d3548);
  border-radius: 14px; padding: 28px 32px; width: 100%; max-width: var(--content-w);
}
label { display: block; font-size: .8rem; color: var(--c-94a3b8); margin-bottom: 8px;
        letter-spacing: .06em; text-transform: uppercase; }
.input-row { display: flex; gap: 10px; }
@media (max-width: 720px) { .input-row { flex-wrap: wrap; } .input-row input[type="text"] { flex-basis: 100%; } }
input[type="text"] {
  flex: 1; background: var(--c-0f1117); border: 1.5px solid var(--c-2d3548);
  border-radius: 8px; padding: 12px 16px; font-size: 1rem;
  color: var(--c-e2e8f0); outline: none; transition: border-color .2s;
}
input[type="text"]:focus { border-color: var(--c-4f80ff); }
input[type="text"]::placeholder { color: var(--c-475569); }
button {
  cursor: pointer; border: none; border-radius: 8px;
  font-size: .95rem; font-weight: 600; padding: 12px 22px;
  transition: opacity .15s, transform .1s; white-space: nowrap;
}
button:active { transform: scale(.97); }
button:disabled, button.busy { opacity: .45; cursor: not-allowed; }
button.busy:active { transform: none; }
#btn-search { background: var(--c-4f80ff); color: #fff; }
#btn-search:hover:not(:disabled) { background: var(--c-3b6ef0); }
#btn-export { background: var(--c-1a3a2a); color: var(--c-4ade80); border: 1px solid var(--c-166534); display: none; }
#btn-export:hover:not(:disabled) { background: var(--c-14532d); }
#status { margin-top: 18px; font-size: .82rem; color: var(--c-64748b);
          min-height: 20px; display: flex; align-items: center; gap: 8px; }
.spinner { width: 14px; height: 14px; border: 2px solid var(--c-2d3548);
           border-top-color: var(--c-4f80ff); border-radius: 50%;
           animation: spin .7s linear infinite; display: none; }
@keyframes spin { to { transform: rotate(360deg); } }
.drop-overlay { position: fixed; inset: 0; z-index: 900; display: none; align-items: center; justify-content: center;
                 background: rgba(var(--ov), .82); border: 3px dashed var(--c-7dd3fc); pointer-events: none;
                 color: var(--c-7dd3fc); font-size: 1.4rem; font-weight: 700; text-align: center; line-height: 1.8; }
.drop-overlay.show { display: flex; }
.drop-hint { flex: 1; color: var(--c-64748b); font-size: .85rem; border: 1.5px dashed var(--c-2d3548); border-radius: 8px;
              padding: 10px 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.drop-hint.loaded { color: var(--c-7dd3fc); border-color: var(--c-2563eb); border-style: solid; }
.drop-overlay small { font-size: .85rem; color: var(--c-94a3b8); font-weight: 400; }
.tabs { display: flex; gap: 8px; width: 100%; max-width: var(--content-w); margin-bottom: 18px; }
.tab { background: var(--c-1e2330); color: var(--c-94a3b8); border: 1px solid var(--c-2d3548); }
.tab.active { background: var(--c-1e3a5f); color: var(--c-7dd3fc); border-color: var(--c-2563eb); }
.page { display: none; width: 100%; flex-direction: column; align-items: center; }
.page.active { display: flex; }
.progress-slot { width: 100%; max-width: var(--content-w); display: flex; justify-content: center; }
.btn-go { background: var(--c-1a3a2a) !important; color: var(--c-4ade80) !important; border: 1px solid var(--c-166534) !important; }
.btn-open { display: inline-block; margin: 6px 0; padding: 10px 16px; border-radius: 8px; background: var(--c-1a3a2a);
             color: var(--c-4ade80); border: 1px solid var(--c-166534); font-weight: 700; text-decoration: none; }
.table-wrap { margin-top: 28px; overflow-x: auto; border-radius: 10px; width: 100%; max-width: var(--content-w);
              border: 1px solid var(--c-2d3548); display: none; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
thead th {
  background: var(--c-1a2236); padding: 12px 16px; text-align: left;
  font-size: .75rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--c-94a3b8); border-bottom: 1px solid var(--c-2d3548);
}
thead th:first-child { border-radius: 10px 0 0 0; }
thead th:last-child  { border-radius: 0 10px 0 0; }
tbody tr { border-bottom: 1px solid var(--c-1e2330); transition: background .15s;
           animation: fadeIn .3s ease; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--c-232b40); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
tbody tr:nth-child(even) { background: var(--c-1a2030); }
tbody tr:nth-child(even):hover { background: var(--c-232b40); }
td { padding: 13px 16px; vertical-align: top; }
td.word { font-weight: 700; color: var(--c-f1f5f9); font-size: 1rem; }
td.pin  { color: var(--c-7dd3fc); font-style: italic; white-space: nowrap; }
td.pos  { color: var(--c-a78bfa); white-space: nowrap; }
td.def  { color: var(--c-cbd5e1); line-height: 1.6; white-space: pre-wrap; }
td.error { color: var(--c-f87171); font-size: .85rem; }
td.lv { color: var(--c-94a3b8); font-size: .82rem; white-space: nowrap; }
td.en { color: var(--c-5eead4); font-size: .9rem; line-height: 1.5; }
/* 表格任一格可點擊複製 */
.table-wrap table td, table.ls-table td { cursor: copy; }
table.ls-table td:has(input) { cursor: default; }
.table-wrap table td.more-sum, .table-wrap table td.rf-empty { cursor: default; }
table.ls-table td.just-copied, .table-wrap table td.just-copied { outline: 2px solid var(--c-4ade80); outline-offset: -2px; }
#copy-toast {
  position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%) translateY(12px);
  background: var(--c-14532d); color: var(--c-dcfce7); border: 1px solid var(--c-22c55e);
  padding: 9px 18px; border-radius: 999px; font-size: .85rem; font-weight: 600;
  box-shadow: 0 6px 24px rgba(0,0,0,.4); opacity: 0; pointer-events: none;
  transition: opacity .18s, transform .18s; z-index: 9999; max-width: 80vw;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#copy-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.badge { display: inline-block; background: var(--c-2d1f5e); color: var(--c-a78bfa);
         border: 1px solid var(--c-4c2d9c); border-radius: 5px;
         padding: 1px 7px; font-size: .78rem; font-weight: 600; }
.lv-tag { display: inline-block; border-radius: 5px; padding: 2px 8px;
          font-size: .76rem; font-weight: 600; white-space: nowrap; }
.lv-基礎 { background: var(--c-1a3a2a); color: var(--c-4ade80); border: 1px solid var(--c-166534); }
.lv-進階 { background: var(--c-1e2e4a); color: var(--c-60a5fa); border: 1px solid var(--c-1d4ed8); }
.lv-est { background: var(--c-3a2a10); color: var(--c-fbbf24); border: 1px dashed var(--c-d97706); }
.table-wrap table td.lv-est-cell { background: rgba(217, 119, 6, .18); }
.lv-merged { background: var(--c-2a1f3d); color: var(--c-c4b5fd); border: 1px solid var(--c-7c3aed); }
.table-wrap table td.merged-cell, table.ls-table td.word.merged-cell { background: rgba(124, 58, 237, .20); }
.merged-tag { display: block; width: fit-content; margin-top: 4px; font-size: .68rem; font-weight: 400; color: var(--c-c4b5fd);
              border: 1px solid var(--c-7c3aed); border-radius: 4px; padding: 0 5px; }
.rf-legend.merged { color: var(--c-c4b5fd); }
.merged-swatch { display: inline-block; width: 12px; height: 12px; border-radius: 3px; background: rgba(124, 58, 237, .5);
                 border: 1px solid var(--c-7c3aed); }
.rw-syn.syn-off { opacity: .55; border-style: dashed; }
.syn-off-tag { font-size: .66rem; color: var(--c-fbbf24); margin-left: 2px; }
.rf-legend { display: inline-flex; align-items: center; gap: 6px; font-size: .75rem; color: var(--c-fbbf24); margin-left: 8px; }
.lv-est-swatch { display: inline-block; width: 12px; height: 12px; border-radius: 3px; background: rgba(217, 119, 6, .45);
                 border: 1px dashed var(--c-d97706); }
.lv-精熟 { background: var(--c-3a1a2a); color: var(--c-f472b6); border: 1px solid var(--c-9d174d); }
#btn-bpmf { background: var(--c-1a2a3a); color: var(--c-64748b); border: 1px solid var(--c-2d3548); font-size:.85rem; }
#btn-bpmf.active { background: var(--c-1e3a5f); color: var(--c-7dd3fc); border-color: var(--c-2563eb); }
#bpmf-hint { font-size:.82rem; color:var(--c-7dd3fc); margin-top:8px; min-height:18px; letter-spacing:.04em; }
.progress-wrap { display: none; width: 100%; max-width: var(--content-w); margin-top: 18px;
                  flex-direction: column; align-items: center; gap: 6px; }
.progress-body { width: 100%; }
.loading-pet { width: 160px; height: 160px; object-fit: contain;
                filter: drop-shadow(0 4px 10px rgba(0,0,0,.55));
                animation: petBob 1s ease-in-out infinite; }
@keyframes petBob {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-4px) rotate(-2deg); }
}
.progress-label { display: flex; justify-content: space-between; align-items: baseline;
                   font-size: .8rem; color: var(--c-94a3b8); margin-bottom: 7px; letter-spacing: .04em; }
.progress-label .progress-pct { color: var(--c-fbbf24); font-weight: 700; font-size: .95rem; }
.progress-track { width: 100%; height: 16px; background: var(--c-0b0d13); border: 1.5px solid var(--c-2d3548);
                   border-radius: 999px; overflow: hidden; box-shadow: inset 0 1px 4px rgba(0,0,0,.5); }
.progress-fill { height: 100%; width: 0%; background: linear-gradient(90deg,var(--c-f59e0b),var(--c-fbbf24));
                  border-radius: 999px; transition: width .25s ease;
                  box-shadow: 0 0 10px rgba(251,191,36,.6);
                  animation: progressPulse 1.4s ease-in-out infinite; }
@keyframes progressPulse {
  0%,100% { box-shadow: 0 0 6px rgba(251,191,36,.45); }
  50% { box-shadow: 0 0 18px rgba(251,191,36,.9); }
}
.joke-text { margin-top: 10px; font-size: .82rem; color: var(--c-64748b); font-style: italic;
              min-height: 16px; text-align: center; }
.segment-line { display: none; width: 100%; max-width: var(--content-w); margin-top: 16px;
                 background: var(--c-1a2236); border: 1px solid var(--c-2d3548); border-radius: 8px;
                 padding: 10px 14px; font-size: .85rem; overflow-x: auto; white-space: nowrap; }
.segment-line .seg-label { color: var(--c-7dd3fc); font-weight: 600; margin-right: 8px; white-space: nowrap; }
.segment-line .seg-word { display: inline-block; background: var(--c-232b40); color: var(--c-cbd5e1);
                           border-radius: 5px; padding: 2px 8px; margin-right: 6px; font-size: .82rem;
                           cursor: pointer; transition: background .15s; }
.segment-line .seg-word:hover { background: var(--c-2d3a5a); }
.segment-line .seg-word.on { background: var(--c-2563eb); color: #fff; }
.seg-fix-btn { font-size: .75rem !important; padding: 2px 10px !important; margin-right: 10px; vertical-align: middle;
               background: var(--c-2a2410) !important; color: var(--c-fbbf24) !important; border: 1px solid var(--c-a16207) !important; }
.rw-work-head { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }
.rw-work-head label { margin: 0 !important; }
.rw-fix { margin-left: 4px; }
.seg-fix { position: fixed; right: 16px; bottom: 16px; z-index: 950; width: 360px; max-width: calc(100vw - 32px);
           max-height: calc(100vh - 32px); overflow-y: auto; display: none; background: var(--c-161b26); color: var(--c-e2e8f0);
           border: 1px solid var(--c-a16207); border-radius: 12px; padding: 14px 16px; box-shadow: 0 12px 40px rgba(0,0,0,.55); }
.seg-fix.show { display: block; }
.seg-fix .sf-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.seg-fix .sf-head b { color: var(--c-fbbf24); }
.seg-fix .sf-head button { padding: 2px 8px; font-size: .8rem; }
.seg-fix .sf-note { font-size: .75rem; color: var(--c-94a3b8); margin-bottom: 8px; line-height: 1.5; }
.seg-fix label { display: block; font-size: .8rem; color: var(--c-7dd3fc); margin: 10px 0 4px; }
.seg-fix .sf-row { display: flex; gap: 6px; flex-wrap: wrap; }
.seg-fix .sf-row input { flex: 1; min-width: 90px; background: var(--c-0f1117); color: var(--c-e2e8f0); border: 1.5px solid var(--c-2d3548);
                          border-radius: 7px; padding: 7px 10px; font-size: .88rem; font-family: inherit; outline: none; }
.seg-fix .sf-row button { padding: 6px 12px; font-size: .82rem; }
.seg-fix .sf-msg { min-height: 1.2em; margin-top: 8px; font-size: .78rem; color: var(--c-4ade80); }
.seg-fix .sf-list { display: flex; flex-wrap: wrap; gap: 6px; }
.seg-fix .sf-item { display: inline-flex; align-items: center; gap: 6px; background: var(--c-1e2330); border: 1px solid var(--c-2d3548);
                    border-radius: 6px; padding: 3px 4px 3px 8px; font-size: .85rem; }
.seg-fix .sf-item small { color: var(--c-94a3b8); font-size: .72rem; }
.seg-fix .sf-item button { padding: 0 6px; font-size: .72rem; }
.seg-fix .sf-actions { margin-top: 12px; text-align: right; }
/* 顯示用表格上方的篩選列：全部顯示／各詞彙等級，點斷詞時多一個「只顯示某詞」標籤 */
.result-filter { display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
                  padding: 10px 12px; background: var(--c-161b27); border-bottom: 1px solid var(--c-2d3548); }
.result-filter button { font-size: .78rem; font-weight: 600; padding: 4px 11px; border-radius: 999px;
                         background: var(--c-1a2030); color: var(--c-cbd5e1); border: 1px solid var(--c-2d3548); }
.result-filter button:hover { background: var(--c-232b40); }
.result-filter button.on { background: var(--c-2563eb); color: #fff; border-color: var(--c-2563eb); }
.result-filter .rf-word { margin-left: auto; font-size: .8rem; color: var(--c-7dd3fc); }
.result-filter .rf-word button { margin-left: 6px; padding: 2px 9px; }
td .more-btn { display: block; margin-top: 6px; font-size: .75rem; font-weight: 600; padding: 3px 10px;
                background: var(--c-1e3a5f); color: var(--c-7dd3fc); border: 1px solid var(--c-2563eb); border-radius: 6px; }
td .more-btn:hover { background: var(--c-24497a); }
td.more-sum { color: var(--c-64748b); font-size: .85rem; }
tbody tr.more-row, tbody tr.more-row:nth-child(even) { background: var(--c-141926); }
tbody tr.more-row td.word { color: var(--c-94a3b8); font-weight: 600; padding-left: 28px; }
td.rf-empty { text-align: center; color: var(--c-64748b); padding: 22px; }
/* 第一次打開的完整教學：右上角一鍵跳過 */
.tour-skip { position: fixed; top: 16px; right: 18px; z-index: 850; display: none;
              background: var(--c-1e2330); color: var(--c-fbbf24); border: 1px solid var(--c-fbbf24); padding: 8px 16px;
              font-size: .85rem; box-shadow: 0 6px 18px rgba(0,0,0,.45); }
.tour-skip.show { display: block; }
.tour-arrow { position: fixed; z-index: 850; display: none; font-size: 2.6rem; line-height: 1;
               color: var(--c-fbbf24); text-shadow: 0 0 14px rgba(251,191,36,.6); pointer-events: none;
               animation: arrowNudge .9s ease-in-out infinite; }
.tour-arrow.show { display: block; }
@keyframes arrowNudge { 0%,100% { transform: translateY(0); } 50% { transform: translateY(10px); } }
.tour-skip:hover { background: var(--c-2a2410); }
.fullscreen-overlay img.skip-img { width: min(80vw, 520px); max-height: none; height: auto;
                                    image-rendering: auto; border-radius: 10px; }
.header-row { display: flex; align-items: flex-start; gap: 18px; margin-bottom: 22px; }
.brand { margin-top: 22px; min-width: 0; }
.logo-menu { position: relative; }
.site-logo { height: 88px; width: auto; display: block; cursor: pointer;
              filter: drop-shadow(0 3px 8px rgba(0,0,0,.5));
              transition: transform .15s ease; }
.site-logo:hover { transform: scale(1.06); }
.logo-dropdown { position: absolute; top: 100%; left: 0; margin-top: 10px;
                  background: var(--c-1e2330); border: 1px solid var(--c-2d3548); border-radius: 10px;
                  min-width: 250px; padding: 6px; box-shadow: 0 14px 34px rgba(0,0,0,.55);
                  display: none; flex-direction: column; z-index: 600; }
.logo-dropdown.show { display: flex; }
.dd-item { display: block; padding: 10px 12px; border-radius: 7px; cursor: pointer;
            color: var(--c-e2e8f0); text-decoration: none; }
.dd-item:hover { background: var(--c-232b40); }
.dd-title { font-size: .92rem; font-weight: 600; }
.dd-sub { display: block; font-size: .76rem; color: var(--c-7dd3fc); margin-top: 3px; text-decoration: none; }
.fullscreen-overlay { position: fixed; inset: 0; background: rgba(4,5,9,.94);
                       display: none; flex-direction: column; align-items: center;
                       justify-content: center; gap: 20px; z-index: 900; cursor: pointer; }
.fullscreen-overlay.show { display: flex; }
.fullscreen-overlay img { max-width: min(80vw, 480px); max-height: 58vh; object-fit: contain; }
.fullscreen-overlay .roast-caption { font-size: 1.3rem; font-weight: 700; color: var(--c-fbbf24);
                                      text-align: center; padding: 0 24px; }
/* 桌子和螢幕是黑的，墊一圈淡光暈才看得出輪廓 */
.fullscreen-overlay img.okfine-img { width: min(70vw, 360px); height: auto;
  background: radial-gradient(circle, rgba(203,213,225,.55) 0%, rgba(148,163,184,.25) 45%, transparent 70%);
  /* 桌子、螢幕貼著原圖的下緣和左緣，整張圖往四周淡出，避免被切出一條硬邊 */
  -webkit-mask-image: radial-gradient(circle at 55% 45%, #000 50%, transparent 71%);
  mask-image: radial-gradient(circle at 55% 45%, #000 50%, transparent 71%); }
.fullscreen-overlay img.impatient-img { max-width: min(90vw, 860px); max-height: 72vh; border-radius: 10px;
                                         box-shadow: 0 12px 36px rgba(0,0,0,.6); }
.fullscreen-overlay img.thanks-img { width: min(60vw, 300px); height: auto; }
/* 人物貼著原圖下緣，下方淡出，避免被切出一條硬邊 */
.fullscreen-overlay img.why-img { -webkit-mask-image: linear-gradient(to top, transparent, #000 22%);
                                   mask-image: linear-gradient(to top, transparent, #000 22%); }
.tour-pick { position: fixed; inset: 0; z-index: 850; display: none; align-items: center; justify-content: center;
              background: rgba(4,5,9,.72); }
.tour-pick.show { display: flex; }
.tour-pick-box { background: var(--c-1e2330); border: 1px solid var(--c-2d3548); border-radius: 14px; padding: 24px 28px;
                  display: flex; flex-direction: column; gap: 10px; min-width: 260px; }
.tour-pick-title { font-size: 1.15rem; font-weight: 700; color: var(--c-f8fafc); margin-bottom: 6px; text-align: center; }
.tour-pick-box .tour-cancel { background: transparent; color: var(--c-64748b); border: 1px solid var(--c-2d3548); }
.tour-bar { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 800;
             width: min(92vw, 720px); display: none; background: var(--c-172033); border: 2px solid var(--c-fbbf24);
             border-radius: 12px; padding: 14px 18px; box-shadow: 0 12px 34px rgba(0,0,0,.6); cursor: pointer; }
.tour-bar.show { display: block; }
.tour-step { font-size: .75rem; color: var(--c-fbbf24); font-weight: 700; margin-bottom: 4px; }
.tour-text { font-size: .95rem; color: var(--c-f1f5f9); line-height: 1.7; }
.tour-hint { font-size: .75rem; color: var(--c-94a3b8); margin-top: 6px; text-align: right; }
/* 教學中目前在講的那個元件 */
.tour-focus { outline: 3px solid var(--c-fbbf24) !important; outline-offset: 4px;
               box-shadow: 0 0 0 8px rgba(251,191,36,.18), 0 0 26px rgba(251,191,36,.45) !important;
               border-radius: 8px; transition: outline-color .2s;
               scroll-margin-top: 24px; scroll-margin-bottom: 190px; }  /* 捲動時停在說明列上方 */
body.touring { padding-bottom: 220px; }  /* 最底下的元件也能捲到說明列上方 */
.fullscreen-overlay .roast-hint { font-size: .8rem; color: var(--c-64748b); }
.toast-overlay { position: fixed; inset: 0; background: rgba(4,5,9,.6);
                  display: none; align-items: center; justify-content: center;
                  z-index: 900; cursor: pointer; }
.toast-overlay.show { display: flex; }
.toast-box { background: var(--c-1e2330); border: 1px solid var(--c-2d3548); border-radius: 12px;
              padding: 22px 30px; font-size: 1.05rem; color: var(--c-f8fafc); text-align: center; }
.credits-box { min-width: 260px; text-align: left; padding: 24px 32px; }
.credits-title { font-size: 1.15rem; font-weight: 700; color: var(--c-f8fafc);
                  text-align: center; margin-bottom: 16px; letter-spacing: .04em; }
.credits-row { display: flex; flex-direction: column; gap: 2px;
                padding: 10px 0; border-top: 1px solid var(--c-2d3548); }
.credits-row:first-of-type { border-top: none; }
.credits-name { font-size: 1rem; font-weight: 600; color: var(--c-e2e8f0); }
.credits-role { font-size: .78rem; color: var(--c-7dd3fc); }
.credits-note { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--c-2d3548);
                 font-size: .82rem; line-height: 1.6; color: var(--c-94a3b8); }
.credits-note a { color: var(--c-7dd3fc); }
.credits-coffee { margin-top: 10px; font-size: .85rem; color: var(--c-cbd5e1); }
.credits-coffee a { color: var(--c-fbbf24); font-weight: 700; }
.fullscreen-overlay video { max-width: min(80vw, 420px); max-height: 66vh; border-radius: 12px;
                             box-shadow: 0 10px 30px rgba(0,0,0,.6); }
.credits-hint { margin-top: 16px; font-size: .76rem; color: var(--c-64748b); text-align: center; }

/* ── 使用身份 ── */
.lang-toggle { display: none !important; margin-left: auto; margin-top: 22px; margin-right: 8px; align-self: flex-start; padding: 6px 12px;
  border: 1px solid var(--c-cbd5e1); border-radius: 999px; background: #fff; color: var(--c-334155); font-size: .85rem; font-weight: 600; cursor: pointer; }
.lang-toggle:hover { border-color: var(--c-4f8ef7); }
.role-chip { margin-left: 0; margin-top: 22px; align-self: flex-start; display: inline-flex; align-items: center; gap: 6px;
             background: var(--c-1e2330); color: var(--c-e2e8f0); border: 1.5px solid var(--c-2d3548); border-radius: 999px;
             padding: 7px 14px; font-size: .85rem; cursor: pointer; white-space: nowrap; }
.role-chip small { color: var(--c-64748b); font-size: .72rem; }
.role-chip[hidden] { display: none; }   /* 帳號功能沒開時不顯示（.role-chip 的 display 會蓋過 hidden） */
.role-chip:hover { border-color: var(--c-4f8ef7); }
.role-pick { display: none; position: fixed; inset: 0; z-index: 3000; background: rgba(8,10,16,.82);
             align-items: center; justify-content: center; padding: 16px; }
.role-pick.show { display: flex; }
.role-box { background: var(--c-161a24); border: 1px solid var(--c-2d3548); border-radius: 16px; padding: 28px; max-width: 640px; width: 100%; text-align: center; }
.role-box h2 { font-size: 1.3rem; margin-bottom: 6px; }
.role-box > p { color: var(--c-94a3b8); font-size: .85rem; margin-bottom: 20px; }
.role-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.role-card { display: flex; flex-direction: column; align-items: center; gap: 8px; background: var(--c-1e2330); color: var(--c-e2e8f0);
             border: 2px solid var(--c-2d3548); border-radius: 14px; padding: 22px 16px; cursor: pointer; font-family: inherit; }
.role-card:hover, .role-card.on { border-color: var(--c-4f8ef7); background: var(--c-1d2740); }
.role-card b { font-size: 1.05rem; }
.role-card span { color: var(--c-94a3b8); font-size: .8rem; line-height: 1.6; }
.role-card .role-icon { font-size: 1rem; }
.role-k12-note { margin-top: 6px; font-size: .75rem; color: var(--c-f59e0b); }
/* 國語文老師：表格不顯示英文對應（Excel 照樣有） */
body.role-k12 .en, body.role-k12 .tcsl-only { display: none; }
/* 新手教學框起表格的一整列（tr 的 outline 在表格裡畫不出來，改用每格的內框線） */
tr.tour-focus { outline: none !important; }
tr.tour-focus > td { box-shadow: inset 0 3px 0 var(--c-fbbf24), inset 0 -3px 0 var(--c-fbbf24); }
tr.tour-focus > td:first-child { box-shadow: inset 3px 3px 0 var(--c-fbbf24), inset 0 -3px 0 var(--c-fbbf24); }
tr.tour-focus > td:last-child { box-shadow: inset -3px 3px 0 var(--c-fbbf24), inset 0 -3px 0 var(--c-fbbf24); }

/* 已併入其他分頁的舊分頁：按鈕藏起來（程式碼保留） */
.tab.tab-retired { display: none !important; }
/* 查詞表格：近反義詞欄（勾「顯示近義詞／反義詞欄」才出現） */
.lk-opts { padding: 10px 14px 0; }
.rel-col { display: none; }
.table-wrap.show-rel .rel-col { display: table-cell; }
td.rel-col { font-size: .85rem; line-height: 1.6; min-width: 140px; }
td.rel-col .rel-tag { color: var(--c-94a3b8); font-size: .75rem; margin-right: 4px; }
/* 查詞表格：成語展開典故 */
.id-open { margin-left: 6px; font-size: .72rem; padding: 2px 8px; border-radius: 999px; background: var(--c-2a1f3d); color: var(--c-c4b5fd);
           border: 1px solid var(--c-7c3aed); cursor: pointer; }
tr.id-detail > td { background: var(--c-1a1528); padding: 12px 18px; font-size: .88rem; line-height: 1.8; }
tr.id-detail .id-tag { display: inline-block; min-width: 4em; color: var(--c-c4b5fd); font-size: .78rem; }

/* 萌典分類標籤：外來語、量詞、方言；大陸用語紅色、查詞表格整列換底色 */
.moe-tag { display: inline-block; margin: 4px 4px 0 0; padding: 0 6px; border-radius: 6px; font-size: .68rem; font-weight: 400;
           color: var(--c-7dd3fc); border: 1px solid var(--c-0e7490); background: var(--c-0c2a33); vertical-align: middle; white-space: nowrap; }
.moe-tag.moe-cn { color: var(--c-fca5a5); border-color: var(--c-b91c1c); background: var(--c-3b1212); }
tr.lk-cn > td { background: rgba(185, 28, 28, .14); }
.wd-card-cn { border-color: var(--c-b91c1c) !important; }
.wd-card-cn .wd-card-tab { color: var(--c-fca5a5); }

/* 教師備課／學生自學：自學看不到備課分頁與備課教學，備課看不到自學分頁 */
body:not(.mode-self) .tab-self { display: none; }
body.mode-self .tab[data-page="lesson"], body.mode-self #tour-pick [data-tour="lesson"],
body.mode-self #tour-pick [data-tour="all"] { display: none; }
.self-paths { margin-top: 8px; }
.self-plan { margin: 8px 0 4px 20px; line-height: 1.9; color: var(--c-cbd5e1); }

/* 右下角：連續天數、在線人數、總參訪 */
.site-stats { position: fixed; right: 12px; bottom: 10px; z-index: 50; display: flex; gap: 10px; padding: 4px 10px; border-radius: 99px;
  background: rgba(var(--ov), .85); border: 1px solid var(--c-2d3548); color: var(--c-94a3b8); font-size: 12px; pointer-events: none; }
.site-stats:empty, body.touring .site-stats { display: none; }
.site-foot { margin: 28px 0 8px; text-align: center; font-size: .8rem; color: var(--c-64748b); letter-spacing: .1em; }
@media (max-width: 560px) { .site-stats { right: 6px; bottom: 6px; gap: 6px; font-size: 11px; } }

/* 帳號選單、刪除帳號確認 */
.auth-menu { position: fixed; z-index: 300; width: 280px; max-width: calc(100vw - 16px); max-height: calc(100vh - 90px); overflow-y: auto; background: var(--c-1a1f2e); border: 1px solid var(--c-2d3548);
  border-radius: 12px; padding: 6px; box-shadow: 0 10px 30px rgba(0,0,0,.45); display: flex; flex-direction: column; }
.auth-menu[hidden] { display: none; }
.auth-menu .am-email { padding: 8px 10px; color: var(--c-94a3b8); font-size: .85rem; border-bottom: 1px solid var(--c-2d3548); margin-bottom: 4px; word-break: break-all; }
.auth-menu a, .auth-menu button { display: block; text-align: left; padding: 8px 10px; border-radius: 8px; color: var(--c-e2e8f0); text-decoration: none;
  background: none; border: 0; font: inherit; cursor: pointer; }
.auth-menu a:hover, .auth-menu button:hover { background: var(--c-2d3548); } .auth-menu .am-danger { color: var(--c-fca5a5); }
.del-dialog { background: var(--c-1a1f2e); color: var(--c-e2e8f0); border: 1px solid var(--c-2d3548); border-radius: 14px; max-width: 420px; width: calc(100% - 32px); padding: 20px; }
.del-dialog { margin: auto; }   /* 全站 * { margin: 0 } 會把對話框的置中拿掉 */
.del-dialog::backdrop { background: rgba(0,0,0,.6); } .del-dialog h3 { margin: 0 0 8px; } .del-dialog p { color: var(--c-cbd5e1); font-size: .92rem; }
.del-dialog input { display: block; width: 100%; margin-top: 6px; padding: 8px 10px; background: var(--c-0f1117); color: var(--c-e2e8f0); border: 1.5px solid var(--c-2d3548); border-radius: 8px; font: inherit; }
.del-msg { color: var(--c-fca5a5); min-height: 1.4em; margin-top: 8px; font-size: .9rem; }
.del-acts { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
.del-acts button { padding: 8px 14px; border-radius: 8px; border: 0; background: var(--c-2d3548); color: var(--c-e2e8f0); font: inherit; cursor: pointer; }
.del-acts .del-go { background: var(--c-b91c1c); color: #fff; }

/* ── 手機、窄螢幕 ──
   內容寬度改成跟著版面（96vw 加上兩邊 16px 留白會比手機螢幕寬，整頁就能左右滑）；
   標題列：logo＋標題一行，語言／模式／帳號／身份按鈕換到下一行；卡片內距縮小。 */
@media (max-width: 800px) {
  :root { --content-w: 100%; }
}
@media (max-width: 720px) {
  body { padding: 18px 12px 72px; }
  .card { padding: 18px 16px; }
  .header-row { flex-wrap: wrap; align-items: center; gap: 10px 8px; margin-bottom: 16px; width: 100%; }
  .site-logo { height: 56px; }
  .brand { margin-top: 0; flex: 1 1 calc(100% - 72px); }
  h1 { font-size: 1.3rem; letter-spacing: .02em; margin-bottom: 2px; }
  .subtitle { margin-bottom: 0; font-size: .78rem; line-height: 1.5; }
  .lang-toggle, .role-chip { margin: 0; min-height: 40px; }
  .role-chip small { display: none; }
  .tabs { flex-wrap: wrap; }
  .site-stats { position: static; margin: 20px auto 0; justify-content: center; flex-wrap: wrap; pointer-events: auto; }
}

/* ── 圖示與細節（Tabler 線條圖示取代 emoji；配色沿用：底 var(--c-0f1117)、面 var(--c-1e2330)、線 var(--c-2d3548)、強調藍 var(--c-4f8ef7)／var(--c-7dd3fc)）──
   形狀規則：卡片 14px、按鈕與輸入框 8px、圖示徽章 12px、只有圖示的小按鈕是圓的。 */
svg.ic { width: 1.15em; height: 1.15em; flex-shrink: 0; vertical-align: -0.2em; fill: none; stroke: currentColor;
  stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
label svg.ic, summary svg.ic { color: var(--c-7dd3fc); width: 1.2em; height: 1.2em; }
/* 大圖示放在淡藍色的圓角方塊裡（情境卡、身份／模式選擇） */
.role-card .role-icon, .scene-tile span.ic, .scene-h span.ic {
  display: inline-grid; place-items: center; width: 48px; height: 48px; border-radius: 12px;
  background: rgba(79, 142, 247, .12); color: var(--c-7dd3fc); font-size: 1rem; }
.role-card .role-icon svg.ic, .scene-tile span.ic svg.ic, .scene-h span.ic svg.ic { width: 26px; height: 26px; stroke-width: 1.5; vertical-align: 0; }
.scene-h span.ic { width: 56px; height: 56px; } .scene-h span.ic svg.ic { width: 30px; height: 30px; }
/* 只有圖示的發音鈕 */
button.say, .self-main button.say { display: inline-grid; place-items: center; width: 32px; height: 32px; padding: 0 !important;
  border-radius: 999px !important; background: transparent !important; border: 1px solid var(--c-2d3548) !important; color: var(--c-7dd3fc) !important; }
button.say:hover { border-color: var(--c-4f8ef7) !important; background: rgba(79, 142, 247, .12) !important; }
button.say svg.ic { width: 17px; height: 17px; vertical-align: 0; }
/* 卡片：細的上緣光和柔和陰影，比平面多一點層次 */
.card { box-shadow: inset 0 1px 0 rgba(255, 255, 255, .03), 0 1px 2px rgba(5, 8, 15, .4), 0 8px 24px rgba(5, 8, 15, .25); }
/* 瀏覽器自己畫的部分也照主題：選字、游標、鍵盤焦點、捲軸 */
::selection { background: rgba(79, 142, 247, .35); color: var(--c-f8fafc); }
input, textarea { caret-color: var(--c-7dd3fc); }
:focus-visible { outline: 2px solid var(--c-4f8ef7); outline-offset: 2px; }
button:focus:not(:focus-visible) { outline: none; }
* { scrollbar-width: thin; scrollbar-color: var(--c-2d3548) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; } ::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--c-2d3548); border-radius: 999px; border: 2px solid var(--c-0f1117); }
::-webkit-scrollbar-thumb:hover { background: var(--c-3b4a66); }
.site-stats span { display: inline-flex; align-items: center; gap: 4px; }

.subtitle:empty { display: none; }
/* 頁面最底下的「資料來源與授權」（各頁的出處說明集中到使用條款頁） */


/* 右上角選單分區 */
#mode-chip { margin-left: auto; }
.auth-menu .am-sec { padding: 6px 0; border-top: 1px solid var(--c-2d3548); } .auth-menu .am-sec:first-child { border-top: 0; }
.auth-menu .am-h { padding: 4px 10px 6px; font-size: .74rem; color: var(--c-64748b); letter-spacing: .04em; }
.auth-menu .am-email { padding: 0 10px 6px; font-size: .82rem; color: var(--c-94a3b8); word-break: break-all; border: 0; margin: 0; }
.auth-menu a, .auth-menu button[data-am] { display: flex; align-items: center; gap: 10px; width: 100%; }
.auth-menu svg.ic { color: var(--c-94a3b8); }
.auth-menu .am-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 6px 10px; font-size: .88rem; color: var(--c-cbd5e1); }
.am-seg { display: inline-flex; background: var(--c-0f1117); border: 1px solid var(--c-2d3548); border-radius: 8px; padding: 2px; }
.auth-menu .am-seg button { display: block; width: auto; padding: 4px 10px; border-radius: 6px; font-size: .8rem; font-weight: 600; color: var(--c-94a3b8); }
.auth-menu .am-seg button.on { background: var(--c-1e3a5f); color: var(--c-7dd3fc); }
.app-dialog label { display: block; text-transform: none; letter-spacing: 0; font-size: .88rem; color: var(--c-cbd5e1); margin: 10px 0 0; }
.app-dialog textarea { display: block; width: 100%; margin-top: 6px; padding: 8px 10px; background: var(--c-0f1117); color: var(--c-e2e8f0);
  border: 1.5px solid var(--c-2d3548); border-radius: 8px; font: inherit; resize: vertical; }
.del-acts .dlg-go { background: var(--c-4f8ef7); color: #fff; }

/* 管理存檔 */
.lpm-dialog { max-width: 820px; }
.lpm-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.lpm-head button { background: none; color: var(--c-94a3b8); padding: 4px 8px; }
.lpm-dialog input[type="search"], .lpm-table input { width: 100%; padding: 7px 10px; background: var(--c-0f1117); color: var(--c-e2e8f0);
  border: 1.5px solid var(--c-2d3548); border-radius: 8px; font: inherit; font-size: .9rem; }
.lpm-table input { padding: 5px 8px; background: transparent; border-color: transparent; }
.lpm-table input:hover, .lpm-table input:focus { border-color: var(--c-2d3548); background: var(--c-0f1117); }
.lpm-wrap { max-height: 55vh; overflow: auto; margin-top: 10px; border: 1px solid var(--c-2d3548); border-radius: 10px; }
.lpm-table { width: 100%; border-collapse: collapse; font-size: .88rem; min-width: 620px; }
.lpm-table th { position: sticky; top: 0; background: var(--c-1a1f2e); color: var(--c-94a3b8); font-weight: 600; text-align: left; padding: 8px; }
.lpm-table td { padding: 4px 8px; border-top: 1px solid var(--c-2d3548); color: var(--c-cbd5e1); white-space: nowrap; }
.lpm-table td:first-child { width: 36%; } .lpm-table td:nth-child(2) { width: 22%; }
.lpm-acts { display: flex; gap: 6px; } .lpm-acts button { padding: 5px 10px; font-size: .82rem; background: var(--c-232a3a); color: var(--c-cbd5e1); border: 1px solid var(--c-2d3548); }
.lpm-acts .lpm-del { color: var(--c-f87171); }
.lpm-dim { color: var(--c-64748b); font-size: .82rem; margin-top: 10px; }

/* 學生帳號：沒有備課、沒有模式切換 */
body.acct-student #mode-chip, body.acct-student #role-chip, body.acct-student .tabs { display: none !important; }
body.acct-student #auth-chip { margin-left: auto; }
.acct-msg { color: var(--c-f87171); min-height: 1.4em; margin-top: 10px; }
/* 防抄襲（guard.js，有開帳號才有）：帳號浮水印蓋整頁但點得穿；列印不印自學頁 */
.wm { position: fixed; inset: 0; z-index: 9999; pointer-events: none; }
@media print { body.guarded #page-self { display: none !important; } }
.del-acts a.dlg-go { display: inline-flex; align-items: center; padding: 8px 14px; border-radius: 8px; white-space: nowrap; text-decoration: none; font-weight: 600; }