/* 在线翻译 /tools/translate
   腾讯翻译（fanyi.qq.com）风格双栏翻译工作台。
   颜色走站点 CSS 变量，自动跟随明暗主题。 */

body.page-translate-full .app { max-width: 100%; }
body.page-translate-full .main-content { max-width: 100%; border-right: 0; }

.tr-page { --tr-fs: 15px; max-width: 100%; margin: 0; padding: 20px 24px 64px; }
/* 正文字号（设置弹窗切换 body 类） */
body.tr-fs-m .tr-page { --tr-fs: 17px; }
body.tr-fs-l .tr-page { --tr-fs: 19.5px; }

/* ===== 头部 ===== */
.tr-hero { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.tr-hero-icon {
    width: 52px; height: 52px; border-radius: 14px; flex-shrink: 0;
    background: color-mix(in srgb, var(--accent) 14%, var(--bg-secondary));
    display: flex; align-items: center; justify-content: center; font-size: 28px;
}
.tr-hero-text h1 { font-size: 22px; font-weight: 800; color: var(--text-primary); margin: 0 0 2px; }
.tr-hero-text p { font-size: 13px; color: var(--text-secondary); margin: 0; }

/* ===== 设置按钮（极简齿轮） ===== */
.tr-hero-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.tr-set-btn {
    width: 34px; height: 34px; border-radius: 10px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-color); background: var(--bg-secondary);
    color: var(--text-secondary); transition: all .15s;
}
.tr-set-btn:hover { color: var(--accent); border-color: var(--accent); background: var(--bg-hover); }
.tr-set-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tr-set-btn[aria-expanded="true"] { color: var(--accent); border-color: var(--accent); }

/* ===== 顶部 Tab ===== */
.tr-tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border-color); margin-bottom: 16px; }
.tr-tab {
    background: none; border: 0; border-bottom: 2px solid transparent;
    padding: 10px 18px; margin-bottom: -1px; cursor: pointer;
    font-size: 15px; font-weight: 700; color: var(--text-secondary);
    transition: color .15s; font-family: inherit;
}
.tr-tab:hover { color: var(--text-primary); }
.tr-tab.is-active { color: var(--accent); border-bottom-color: var(--accent); }
.tr-tab:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; border-radius: 4px; }
.tr-pane[hidden] { display: none !important; }

/* ===== 双栏工作台 ===== */
.tr-board {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 46px minmax(0, 1fr);
    gap: 6px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 12px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, .05);
}
.tr-col {
    display: flex; flex-direction: column; min-width: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 12px 8px;
}
.tr-langbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tr-langlabel { font-size: 12px; font-weight: 700; color: var(--text-secondary); flex-shrink: 0; }
.tr-select {
    flex: 1 1 160px; min-width: 0; max-width: 260px;
    padding: 5px 8px; font-size: 13.5px; font-weight: 600;
    border: 1px solid var(--border-color); border-radius: 8px;
    background: var(--bg-secondary); color: var(--accent); outline: none; cursor: pointer;
}
.tr-select:focus { border-color: var(--accent); }
.tr-detected {
    font-size: 11px; color: var(--accent); white-space: nowrap;
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    padding: 2px 9px; border-radius: 999px;
}
.tr-editor { flex: 1 1 auto; min-height: 240px; margin-top: 8px; display: flex; flex-direction: column; }
.tr-textarea {
    flex: 1; width: 100%; min-height: 240px; resize: none;
    border: 0; outline: none; background: transparent;
    font-size: var(--tr-fs); line-height: 1.75; color: var(--text-primary);
    font-family: inherit;
}
.tr-textarea::placeholder { color: var(--text-secondary); opacity: .8; }
.tr-out {
    flex: 1; min-height: 240px; overflow-y: auto; font-size: var(--tr-fs); line-height: 1.75;
    color: var(--text-primary); white-space: pre-wrap; word-break: break-word;
    padding-right: 4px;
}
.tr-out .tr-ph { color: var(--text-secondary); opacity: .8; }
.tr-out.is-error { color: var(--danger); }

.tr-foot {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    margin: 6px 2px 0; font-size: 12px; color: var(--text-secondary); flex-wrap: wrap;
}
.tr-chars.is-over { color: var(--danger); font-weight: 700; }
.tr-status.is-busy { color: var(--accent); }
.tr-status.is-err { color: var(--danger); }

.tr-tools { display: flex; align-items: center; gap: 8px; margin-top: 7px; flex-wrap: wrap; }
.tr-tbtn {
    padding: 6px 13px; font-size: 12.5px; font-weight: 600; border-radius: 8px;
    border: 1px solid transparent; background: var(--bg-hover);
    color: var(--text-secondary); cursor: pointer; transition: all .15s; font-family: inherit;
}
.tr-tbtn:hover:not(:disabled) { color: var(--accent); border-color: var(--accent); }
.tr-tbtn:disabled { opacity: .42; cursor: not-allowed; }
.tr-go { background: var(--accent); color: #fff; padding: 6px 22px; letter-spacing: 2px; }
.tr-go:hover:not(:disabled) { color: #fff !important; opacity: .92; }
.tr-switch-label {
    margin-left: auto; display: inline-flex; align-items: center; gap: 5px;
    font-size: 12.5px; color: var(--text-secondary); cursor: pointer; user-select: none;
}
.tr-switch-label input { accent-color: var(--accent); cursor: pointer; }

/* ===== 交换按钮 ===== */
.tr-swap-col { display: flex; align-items: center; justify-content: center; position: relative; }
.tr-swap-col::before {
    content: ''; position: absolute; left: 50%; top: 6px; bottom: 6px;
    width: 1px; background: var(--border-color);
}
.tr-swap-btn {
    position: relative; z-index: 1;
    width: 36px; height: 36px; border-radius: 50%;
    border: 1px solid var(--border-color); background: var(--bg-primary);
    color: var(--accent); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all .18s;
}
.tr-swap-btn:hover:not(:disabled) { border-color: var(--accent); transform: rotate(180deg); }
.tr-swap-btn:disabled { opacity: .4; cursor: not-allowed; }

/* ===== 示例与说明 ===== */
.tr-samples { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 12px; }
.tr-samples-label { font-size: 12.5px; color: var(--text-secondary); }
.tr-sample {
    padding: 4px 11px; border-radius: 999px; font-size: 12px; cursor: pointer;
    border: 1px solid var(--border-color); background: var(--bg-secondary);
    color: var(--text-secondary); transition: all .15s; font-family: inherit;
}
.tr-sample:hover { color: var(--accent); border-color: var(--accent); }
.tr-note {
    margin: 10px 2px 0; font-size: 12px; line-height: 1.7; color: var(--text-secondary);
    max-width: 1000px;
}
.tr-note b { color: var(--text-primary); }

/* ===== 图片 / 文档翻译引导 ===== */
.tr-guide {
    background: var(--bg-secondary); border: 1px solid var(--border-color);
    border-radius: 16px; padding: 44px 26px; text-align: center; max-width: 640px; margin: 0 auto;
}
.tr-guide-icon { font-size: 42px; }
.tr-guide h2 { font-size: 18px; margin: 10px 0 8px; color: var(--text-primary); }
.tr-guide p, .tr-guide ol { font-size: 13.5px; color: var(--text-secondary); line-height: 1.8; text-align: left; max-width: 440px; margin: 0 auto 10px; }
.tr-guide ol { padding-left: 20px; }
.tr-guide-btn {
    display: inline-block; margin: 6px 0 12px; padding: 9px 20px; font-size: 13.5px;
    border-radius: 10px; text-decoration: none; cursor: pointer; font-family: inherit;
    background: var(--accent); color: #fff; border: 1px solid var(--accent);
}
.tr-guide-btn:hover { opacity: .92; color: #fff; }
.tr-guide-tip { font-size: 12px; }

/* ===== 设置弹窗 ===== */
.tr-set-mask {
    position: fixed; inset: 0; z-index: 100000; padding: 20px;
    background: rgba(0, 0, 0, .45);
    display: flex; align-items: center; justify-content: center;
}
.tr-set-mask[hidden] { display: none !important; }
.tr-set-modal {
    width: 100%; max-width: 400px; overflow: hidden;
    background: var(--bg-primary); border: 1px solid var(--border-color);
    border-radius: 16px; box-shadow: 0 18px 50px rgba(0, 0, 0, .22);
}
.tr-set-head {
    display: flex; align-items: center; gap: 8px;
    padding: 13px 16px 11px; border-bottom: 1px solid var(--border-color);
}
.tr-set-head h3 { flex: 1; margin: 0; font-size: 15px; font-weight: 800; color: var(--text-primary); }
.tr-set-close {
    width: 28px; height: 28px; border: 0; border-radius: 8px; cursor: pointer;
    background: transparent; color: var(--text-secondary); font-size: 14px;
}
.tr-set-close:hover { background: var(--bg-hover); color: var(--text-primary); }
.tr-set-body { padding: 10px 16px 4px; }
.tr-set-row { display: flex; align-items: center; gap: 10px; padding: 8px 0; }
.tr-set-k { flex: 0 0 92px; font-size: 13px; font-weight: 600; color: var(--text-secondary); }
.tr-set-select { flex: 1 1 auto; max-width: none; }
.tr-set-row input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }
.tr-set-tip { margin: 8px 0 0; font-size: 11.5px; line-height: 1.6; color: var(--text-secondary); }
.tr-set-foot { display: flex; align-items: center; gap: 8px; padding: 10px 16px 14px; }
.tr-set-spacer { flex: 1; }

/* ===== 窄屏：单栏堆叠 ===== */
@media (max-width: 920px) {
    .tr-board { grid-template-columns: minmax(0, 1fr); gap: 4px; }
    .tr-swap-col { order: -1; }
    .tr-swap-col::before { display: none; }
    .tr-swap-btn { transform: rotate(90deg); }
    .tr-swap-btn:hover:not(:disabled) { transform: rotate(270deg); }
    .tr-editor, .tr-textarea, .tr-out { min-height: 190px; }
}

@media (max-width: 560px) {
    .tr-page { padding: 14px 12px 56px; --tr-fs: 16px; }
    body.tr-fs-m .tr-page { --tr-fs: 17.5px; }
    body.tr-fs-l .tr-page { --tr-fs: 19.5px; }
    .tr-tab { flex: 1 1 0; padding: 10px 2px; font-size: 14px; }
    .tr-board { padding: 8px; border-radius: 12px; }
    .tr-textarea, .tr-out { font-size: var(--tr-fs); min-height: 170px; }
    .tr-set-mask { padding: 12px; }
    .tr-set-k { flex: 0 0 80px; font-size: 12.5px; }
    .tr-set-btn { width: 32px; height: 32px; }
    .tr-editor { min-height: 170px; }
    .tr-select { flex: 1 1 100%; max-width: none; }
    .tr-tbtn { flex: 1 1 auto; }
    .tr-go { width: 100%; }
}

/* ===== 翻译历史（右侧抽屉） ===== */
.tr-hist-btn { position: relative; }
.tr-hist-badge {
    position: absolute; top: -5px; right: -5px; min-width: 17px; height: 17px; padding: 0 4px;
    border-radius: 999px; background: var(--accent); color: #fff;
    font-size: 10px; font-weight: 700; line-height: 17px; text-align: center;
    box-shadow: 0 0 0 2px var(--bg-primary);
}
.tr-hist-badge[hidden] { display: none !important; }

.tr-hist-mask {
    position: fixed; inset: 0; z-index: 100001;
    background: rgba(0, 0, 0, .42);
    display: flex; justify-content: flex-end;
}
.tr-hist-mask[hidden] { display: none !important; }
.tr-hist {
    width: min(460px, 100%); height: 100%;
    display: flex; flex-direction: column;
    background: var(--bg-primary); border-left: 1px solid var(--border-color);
    box-shadow: -14px 0 40px rgba(0, 0, 0, .18);
    animation: tr-hist-in .2s ease;
}
@keyframes tr-hist-in { from { transform: translateX(26px); opacity: .35; } to { transform: none; opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .tr-hist { animation: none; } }

.tr-hist-head {
    flex: 0 0 auto; display: flex; align-items: center; gap: 8px;
    padding: 13px 14px 11px; border-bottom: 1px solid var(--border-color);
}
.tr-hist-head h3 { flex: 1; margin: 0; font-size: 15px; font-weight: 800; color: var(--text-primary); }
.tr-hist-sub { font-size: 12px; color: var(--text-secondary); }

.tr-hist-stats {
    flex: 0 0 auto; margin: 0; padding: 8px 14px 0;
    font-size: 12px; line-height: 1.6; color: var(--text-secondary);
}
.tr-hist-stats b { color: var(--accent); }

.tr-hist-bar { flex: 0 0 auto; display: flex; flex-direction: column; gap: 7px; padding: 9px 14px; }
.tr-hist-input {
    width: 100%; height: 34px; padding: 0 11px; font-size: 13.5px; font-family: inherit;
    border: 1px solid var(--border-color); border-radius: 9px;
    background: var(--bg-secondary); color: var(--text-primary); outline: none;
}
.tr-hist-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent); }
.tr-hist-sels { display: flex; gap: 6px; }
.tr-hist-sel { flex: 1 1 0; min-width: 0; max-width: none; font-size: 12.5px; padding: 5px 6px; }

.tr-hist-acts { flex: 0 0 auto; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; padding: 0 14px 9px; }
.tr-hist-spacer { flex: 1; }
.tr-tbtn.tr-danger { color: var(--danger); }
.tr-tbtn.tr-danger:hover:not(:disabled) { color: var(--danger); border-color: var(--danger); }

.tr-hist-list {
    flex: 1 1 auto; min-height: 0; overflow-y: auto;
    padding: 0 14px 8px; display: flex; flex-direction: column; gap: 9px;
}
.tr-hitem {
    display: flex; flex-direction: column; gap: 6px;
    padding: 10px 11px 8px; border-radius: 12px;
    border: 1px solid var(--border-color); background: var(--bg-secondary);
}
.tr-hitem.is-fav { border-color: var(--accent); }
.tr-hitem-top { display: flex; align-items: center; gap: 8px; }
.tr-hitem-pair {
    max-width: 64%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    font-size: 11.5px; font-weight: 700; color: var(--accent);
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    border-radius: 999px; padding: 2px 9px;
}
.tr-hitem-time { margin-left: auto; font-size: 11.5px; color: var(--text-secondary); white-space: nowrap; }
.tr-hitem-src, .tr-hitem-dst {
    font-size: 13px; line-height: 1.6; word-break: break-word;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.tr-hitem-src { color: var(--text-primary); }
.tr-hitem-dst { color: var(--text-secondary); }
.tr-hitem-acts { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.tr-hb {
    padding: 4px 10px; font-size: 12px; font-weight: 600; border-radius: 7px; font-family: inherit;
    border: 1px solid var(--border-color); background: var(--bg-primary);
    color: var(--text-secondary); cursor: pointer; transition: all .15s;
}
.tr-hb:hover { color: var(--accent); border-color: var(--accent); }
.tr-hb.is-on { color: #d98b00; border-color: #d98b00; }
.tr-hb-del:hover { color: var(--danger); border-color: var(--danger); }

.tr-hist-more { flex: 0 0 auto; padding: 2px 14px 10px; text-align: center; }
.tr-hist-more[hidden] { display: none !important; }
.tr-hist-empty {
    flex: 0 0 auto; margin: 2px 14px 10px; padding: 26px 12px; text-align: center;
    font-size: 13px; color: var(--text-secondary);
    border: 1px dashed var(--border-color); border-radius: 12px;
}
.tr-hist-empty[hidden] { display: none !important; }

.tr-hist-undo {
    flex: 0 0 auto; display: flex; align-items: center; gap: 10px;
    margin: 0 14px 8px; padding: 7px 11px; border-radius: 10px;
    border: 1px solid var(--border-color); background: var(--bg-secondary);
    font-size: 12.5px; color: var(--text-secondary);
}
.tr-hist-undo[hidden] { display: none !important; }
.tr-hist-undo span { flex: 1; }

.tr-hist-foot {
    flex: 0 0 auto; padding: 9px 14px calc(11px + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid var(--border-color);
    font-size: 11.5px; line-height: 1.6; color: var(--text-secondary);
}

@media (max-width: 560px) {
    .tr-hist { width: 100%; border-left: 0; }
    .tr-hist-sels { flex-wrap: wrap; }
    .tr-hist-sel { flex: 1 1 100%; }
    .tr-hist-acts .tr-tbtn { flex: 1 1 auto; }
    .tr-hist-input { height: 38px; font-size: 16px; } /* 防 iOS 聚焦缩放 */
}