/* 万能在线解压 /tools/universal-archive —— class 前缀 ua-
   沿用站点主题变量（深浅色自适应）与统一间距 / 圆角 / 字号层级；
   电脑端满屏（body.tools-page 已解除 .app / .main-content 限宽，根容器不再加 max-width）。 */
.ua {
    --ua-r: 16px;
    --ua-r-sm: 10px;
    --ua-r-xs: 8px;
    --ua-gap: 16px;
    --ua-pad: 16px;
    --ua-line: 1px solid var(--border-color);
    --ua-muted: var(--text-secondary);
    --ua-ok: #15803d;

    width: 100%;
    box-sizing: border-box;
    padding: clamp(14px, 2vw, 24px) clamp(14px, 2.4vw, 28px) clamp(28px, 4vw, 44px);
    display: flex;
    flex-direction: column;
    gap: var(--ua-gap);
}
body.tools-page .ua,
body[data-page="tools"] .ua { max-width: 100%; width: 100%; margin: 0; }

/* [hidden] 兜底：.ua-arch/.ua-note 等声明了 display，会覆盖原生 hidden，必须强制兜底 */
.ua [hidden] { display: none !important; }

/* ===== 头部 ===== */
.ua-hero { display: flex; align-items: flex-start; gap: 14px; }
.ua-hero-txt { flex: 1 1 auto; min-width: 0; }
.ua-title {
    margin: 0 0 6px;
    font-size: clamp(19px, 1.1vw + 14px, 25px);
    line-height: 1.3; font-weight: 800; letter-spacing: -.2px; color: var(--text-primary);
}
.ua-sub {
    margin: 0; max-width: 68ch;
    font-size: clamp(12.5px, .3vw + 12px, 14px); line-height: 1.65; color: var(--text-secondary);
}

/* ===== 提示条 / 进度 ===== */
.ua-note {
    margin: 0; padding: 10px 14px; border-radius: var(--ua-r-sm);
    font-size: 13px; line-height: 1.65; border: var(--ua-line);
    background: var(--bg-secondary); color: var(--text-secondary);
}
.ua-note[hidden] { display: none !important; }
.ua-note.is-err { color: var(--danger); border-color: var(--danger); }
.ua-note.is-ok { color: var(--ua-ok); border-color: #86efac; }
.ua-prog { padding: 9px 12px; border-radius: var(--ua-r-xs); background: var(--bg-secondary); font-size: 13px; color: var(--text-secondary); }
.ua-prog[hidden] { display: none !important; }
.ua-prog-bar { margin-top: 7px; height: 6px; border-radius: 3px; background: var(--bg-primary); overflow: hidden; }
.ua-prog-fill { height: 100%; width: 0; background: var(--accent); transition: width .2s; }

/* ===== 拖拽区 ===== */
.ua-drop {
    border: 2px dashed var(--border-color); border-radius: var(--ua-r);
    background: var(--bg-secondary); padding: clamp(18px, 3vw, 34px) 18px;
    display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center;
    transition: border-color .15s, background .15s;
}
.ua-drop.is-over { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--bg-secondary)); }
.ua-drop-ico { font-size: clamp(30px, 5vw, 44px); line-height: 1; }
.ua-drop-tx { margin: 0; font-size: 14px; color: var(--text-primary); }
.ua-drop-btns { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; }
.ua-drop-tips { display: flex; flex-wrap: wrap; gap: 6px 14px; justify-content: center; font-size: 12.5px; color: var(--text-secondary); }

/* ===== 按钮 ===== */
.ua-btn {
    min-height: 40px; padding: 9px 16px; font-size: 14px; font-weight: 600; font-family: inherit;
    border-radius: var(--ua-r-sm); border: var(--ua-line); background: var(--bg-primary);
    color: var(--text-primary); cursor: pointer;
    transition: background .15s, border-color .15s, color .15s, transform .12s;
}
.ua-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.ua-btn:active:not(:disabled) { transform: translateY(1px); }
.ua-btn:disabled { opacity: .45; cursor: not-allowed; }
.ua-btn-sm { min-height: 32px; padding: 5px 11px; font-size: 12.5px; border-radius: var(--ua-r-xs); }
.ua-btn-go { background: var(--accent); border-color: var(--accent); color: #fff; }
.ua-btn-go:hover:not(:disabled) { color: #fff; filter: brightness(1.08); }
.ua-btn-danger { color: var(--danger); border-color: var(--danger); }
.ua-btn-ghost { background: transparent; }
.ua-icon-btn {
    flex: 0 0 auto; width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
    border: var(--ua-line); border-radius: var(--ua-r-sm);
    background: var(--bg-secondary); color: var(--text-secondary); cursor: pointer; transition: all .15s;
}
.ua-icon-btn:hover { color: var(--accent); border-color: var(--accent); }

/* ===== 压缩包信息条 ===== */
.ua-arch {
    display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
    padding: 11px 13px; border-radius: var(--ua-r-sm);
    border: var(--ua-line); background: var(--bg-secondary);
}
.ua-arch[hidden] { display: none !important; }
.ua-arch-badge {
    padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 800; letter-spacing: .4px;
    background: var(--accent); color: #fff;
}
.ua-arch-name { font-size: 14px; font-weight: 700; color: var(--text-primary); word-break: break-all; }
.ua-arch-meta { font-size: 12.5px; color: var(--text-secondary); }
.ua-flex1 { flex: 1 1 auto; }

/* ===== 主区双栏 ===== */
.ua-main { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 18px; align-items: start; }
.ua-panel {
    border: var(--ua-line); border-radius: var(--ua-r); background: var(--bg-secondary);
    padding: var(--ua-pad); display: flex; flex-direction: column; gap: 12px; min-width: 0;
}
.ua-panel-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.ua-panel-title { margin: 0; font-size: clamp(15px, .5vw + 13px, 17px); font-weight: 800; color: var(--text-primary); }
.ua-panel-count { font-size: 12.5px; font-weight: 600; color: var(--text-secondary); }
.ua-panel-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-left: auto; }

/* 表单控件 */
.ua-input, .ua-select {
    min-height: 36px; padding: 7px 10px; font-size: 13px; font-family: inherit; border-radius: var(--ua-r-xs);
    border: var(--ua-line); background: var(--bg-primary); color: var(--text-primary);
    width: 100%; box-sizing: border-box;
}
.ua-select { width: auto; }
.ua-input:focus-visible, .ua-select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.ua-tip { margin: 0; font-size: 12.5px; line-height: 1.7; color: var(--text-secondary); }
.ua-field { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; color: var(--text-secondary); }
.ua-field > span { font-weight: 600; color: var(--text-primary); }

/* ===== 文件列表 ===== */
.ua-list { display: flex; flex-direction: column; gap: 6px; max-height: 62vh; overflow: auto; contain: layout style; }
.ua-item {
    /* 长列表：视口外的行跳过渲染，配合分批渲染进一步降低首屏与滚动开销 */
    content-visibility: auto; contain-intrinsic-size: auto 40px;
    display: flex; align-items: center; gap: 9px; padding: 7px 9px;
    border-radius: var(--ua-r-xs); border: var(--ua-line); background: var(--bg-primary);
    font-size: 13px; color: var(--text-primary);
}
.ua-item.is-sel { border-color: var(--accent); box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 22%, transparent); }
.ua-item.is-dir { background: transparent; }
.ua-cb { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; flex: 0 0 auto; }
.ua-ico { flex: 0 0 auto; font-size: 15px; }
.ua-name {
    flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    cursor: pointer;
}
.ua-name:hover { color: var(--accent); text-decoration: underline; }
.ua-path { flex: 0 0 auto; font-size: 11.5px; color: var(--text-secondary); max-width: 34%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ua-size { flex: 0 0 auto; font-size: 12px; color: var(--text-secondary); font-variant-numeric: tabular-nums; }
.ua-ops { flex: 0 0 auto; display: flex; gap: 5px; }

.ua-empty {
    padding: 26px 16px; text-align: center; font-size: 13px; color: var(--text-secondary);
    border: 1px dashed var(--border-color); border-radius: var(--ua-r-sm);
}
.ua-empty[hidden] { display: none !important; }
.ua-more-wrap { display: flex; justify-content: center; }

/* ===== 统计 ===== */
.ua-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.ua-stat { padding: 8px 10px; border-radius: var(--ua-r-xs); background: var(--bg-primary); border: var(--ua-line); }
.ua-stat-k { display: block; font-size: 11.5px; color: var(--text-secondary); }
.ua-stat-v { display: block; margin-top: 2px; font-size: 14px; font-weight: 700; color: var(--text-primary); font-variant-numeric: tabular-nums; }

/* ===== 预览 ===== */
.ua-prev { display: flex; flex-direction: column; gap: 9px; }
.ua-prev[hidden] { display: none !important; }
.ua-prev-head { display: flex; align-items: center; gap: 8px; }
.ua-prev-name { font-size: 13px; font-weight: 700; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ua-prev-body {
    max-height: 300px; overflow: auto; margin: 0; padding: 10px 12px; border-radius: var(--ua-r-xs);
    border: var(--ua-line); background: var(--bg-primary);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 12.5px; line-height: 1.65; color: var(--text-primary); white-space: pre-wrap; word-break: break-all;
}
.ua-prev-img { max-width: 100%; max-height: 300px; border-radius: var(--ua-r-xs); border: var(--ua-line); background: var(--bg-primary); }
.ua-prev-tip { margin: 0; font-size: 12.5px; color: var(--text-secondary); }

/* ===== 批量操作条 ===== */
.ua-selbar {
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
    padding: 8px 12px; border-radius: var(--ua-r-sm);
    border: 1px solid var(--accent); background: var(--bg-secondary);
}
.ua-selbar[hidden] { display: none !important; }
.ua-selall { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; cursor: pointer; }
.ua-selcount { font-size: 12.5px; color: var(--text-secondary); }

/* ===== 弹窗 ===== */
.ua-mask {
    position: fixed; inset: 0; z-index: 100000; display: flex; align-items: center; justify-content: center;
    padding: 18px; background: rgba(0, 0, 0, .45);
}
.ua-mask[hidden] { display: none !important; }
.ua-modal {
    width: 100%; max-width: 560px; max-height: 88vh; overflow: auto;
    border-radius: var(--ua-r); border: var(--ua-line); background: var(--bg-primary);
    display: flex; flex-direction: column;
}
.ua-modal-head { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-bottom: var(--ua-line); }
.ua-modal-head h3 { margin: 0; font-size: 15.5px; font-weight: 800; color: var(--text-primary); flex: 1; }
.ua-modal-body { padding: 14px 16px; display: flex; flex-direction: column; gap: 11px; }
.ua-modal-foot { display: flex; align-items: center; gap: 9px; padding: 12px 16px; border-top: var(--ua-line); }
.ua-set-row { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-primary); }
.ua-set-row > span { flex: 0 0 96px; color: var(--text-secondary); }
.ua-set-row .ua-select, .ua-set-row .ua-input { flex: 1 1 auto; min-width: 0; }
.ua-set-tip { margin: 0; font-size: 12.5px; line-height: 1.7; color: var(--text-secondary); }
.ua-result { padding: 9px 12px; border-radius: var(--ua-r-xs); font-size: 13px; line-height: 1.7; border: var(--ua-line); }
.ua-result[hidden] { display: none !important; }
.ua-result.is-ok { color: var(--ua-ok); border-color: #86efac; background: #f0fdf4; }
.ua-result.is-err { color: var(--danger); border-color: var(--danger); background: var(--bg-secondary); }
.ua-result a { color: var(--accent); }

/* ===== 关于 ===== */
.ua-about { border: var(--ua-line); border-radius: var(--ua-r); background: var(--bg-secondary); padding: 16px 18px; }
.ua-about h2 { margin: 0 0 8px; font-size: 16px; font-weight: 800; color: var(--text-primary); }
.ua-about p { margin: 0; max-width: 82ch; font-size: 13.5px; line-height: 1.8; color: var(--text-secondary); }
.ua-feats { margin: 14px 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 8px 18px; }
.ua-feats li { font-size: 13px; line-height: 1.7; color: var(--text-secondary); }
.ua-feats b { color: var(--text-primary); font-weight: 700; }

/* ===== 焦点与动效 ===== */
.ua-btn:focus-visible, .ua-icon-btn:focus-visible, .ua-item:focus-visible {
    outline: 2px solid var(--accent); outline-offset: 2px;
}
@media (hover: none) { .ua-name:hover { text-decoration: none; } }

/* ===== 平板 ≤991px ===== */
@media (max-width: 991px) {
    .ua { --ua-gap: 14px; }
    .ua-main { grid-template-columns: 1fr; gap: 14px; }
    .ua-list { max-height: none; }
}

/* ===== 手机 ≤767px ===== */
@media (max-width: 767px) {
    .ua { padding: 12px 12px calc(26px + env(safe-area-inset-bottom)); }
    .ua-panel { padding: 12px; border-radius: 14px; }
    .ua-drop { padding: 18px 12px; }
    .ua-btns .ua-btn { flex: 1 1 auto; min-width: 44%; min-height: 46px; justify-content: center; font-size: 14.5px; }
    .ua-input, .ua-select { font-size: 16px; min-height: 44px; }
    .ua-panel-tools { margin-left: 0; width: 100%; }
    .ua-panel-tools .ua-input { flex: 1 1 140px; min-width: 0; }
    .ua-path { display: none; }
    .ua-list { max-height: none; }
    .ua-modal { max-width: none; border-radius: 18px 18px 0 0; align-self: flex-end; max-height: 92vh; }
    .ua-mask { padding: 0; align-items: flex-end; }
    .ua-modal-foot { padding-bottom: calc(12px + env(safe-area-inset-bottom)); }
    .ua-about { padding: 14px; }
}

/* ===== 小屏 ≤560px ===== */
@media (max-width: 560px) {
    .ua-stats { grid-template-columns: 1fr; }
    .ua-btns .ua-btn { min-width: 100%; }
    .ua-feats { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    .ua-btn:active:not(:disabled) { transform: none; }
    .ua-btn, .ua-item, .ua-prog-fill { transition: none; }
}