/* PDF 删除页（/tools/pdf_remover）样式
   约定：class 前缀 prm-；配色沿用站点主题变量，自动适配深/浅色。
   注意：本站多处用 display:flex/grid 声明容器，凡用 hidden 属性控制显隐的元素
         都必须补 [hidden]{display:none!important} 兜底，否则 hidden 不生效。 */

.prm {
    padding: 22px 24px 56px;
    box-sizing: border-box;
    color: var(--text-primary, #111827);
}

/* ---------- 头部 ---------- */
.prm-hero { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.prm-hero-ico {
    flex: 0 0 52px; width: 52px; height: 52px; border-radius: 15px;
    display: flex; align-items: center; justify-content: center; font-size: 26px;
    background: linear-gradient(135deg, color-mix(in srgb, #dc2626 16%, transparent), color-mix(in srgb, #dc2626 5%, transparent));
    border: 1px solid color-mix(in srgb, #dc2626 24%, transparent);
}
.prm-title { margin: 0; font-size: 26px; font-weight: 800; letter-spacing: .2px; }
.prm-sub { margin: 5px 0 0; font-size: 13.5px; line-height: 1.6; color: var(--text-secondary, #6b7280); }

/* ---------- 提示条 ---------- */
.prm-note {
    margin: 0 0 14px; padding: 9px 13px; border-radius: 10px;
    font-size: 13px; line-height: 1.5;
    background: color-mix(in srgb, var(--accent, #136ce9) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent, #136ce9) 26%, transparent);
}
.prm-note.is-err {
    background: color-mix(in srgb, #dc2626 10%, transparent);
    border-color: color-mix(in srgb, #dc2626 32%, transparent); color: #b91c1c;
}
.prm-note.is-warn {
    background: color-mix(in srgb, #f59e0b 12%, transparent);
    border-color: color-mix(in srgb, #f59e0b 34%, transparent); color: #b45309;
}
.prm-note.is-ok {
    background: color-mix(in srgb, #16a34a 10%, transparent);
    border-color: color-mix(in srgb, #16a34a 30%, transparent); color: #15803d;
}
.prm-note[hidden] { display: none !important; }

/* ---------- 布局 ---------- */
.prm-app { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 16px; align-items: start; }
.prm-side { display: flex; flex-direction: column; gap: 12px; position: sticky; top: 12px; }
.prm-main { min-width: 0; display: flex; flex-direction: column; }

.prm-card {
    padding: 14px 15px; box-sizing: border-box;
    background: var(--bg-primary, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 14px;
}
.prm-block + .prm-block { margin-top: 14px; }

/* ---------- 上传 ---------- */
.prm-drop {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 6px; padding: 26px 16px; text-align: center; cursor: pointer;
    border: 2px dashed var(--border-color, #e5e7eb); border-radius: 14px;
    transition: border-color .15s, background .15s;
}
.prm-drop:hover { border-color: color-mix(in srgb, #dc2626 45%, transparent); }
.prm.is-drag .prm-drop {
    border-color: #dc2626;
    background: color-mix(in srgb, #dc2626 6%, transparent);
}
.prm-drop-ico { font-size: 34px; line-height: 1; }
.prm-drop-t { margin: 4px 0 0; font-size: 15px; font-weight: 600; }
.prm-drop-s { margin: 0; font-size: 12.5px; line-height: 1.6; color: var(--text-secondary, #6b7280); }
.prm-drop .prm-btn-go { margin-top: 10px; flex: 0 0 auto; }
.prm-drop[hidden], .prm-file[hidden], .prm-card[hidden],
.prm-empty[hidden], .prm-grid[hidden], .prm-spin[hidden],
.prm-mark[hidden], .prm-summary[hidden], .prm-empty-mark[hidden] { display: none !important; }

/* ---------- 文件卡片 ---------- */
.prm-file-head { display: flex; align-items: center; gap: 10px; }
.prm-file-ico {
    flex: 0 0 40px; width: 40px; height: 40px; border-radius: 11px;
    display: flex; align-items: center; justify-content: center; font-size: 20px;
    background: color-mix(in srgb, #dc2626 12%, transparent);
}
.prm-file-info { min-width: 0; flex: 1 1 auto; }
.prm-file-name {
    font-size: 13.5px; font-weight: 600; line-height: 1.4;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.prm-file-meta { margin-top: 2px; font-size: 12px; color: var(--text-secondary, #6b7280); }
.prm-icon-btn {
    flex: 0 0 auto; width: 32px; height: 32px; border-radius: 9px; cursor: pointer;
    display: flex; align-items: center; justify-content: center; font-size: 15px;
    background: transparent; border: 1px solid var(--border-color, #e5e7eb);
    color: var(--text-secondary, #6b7280);
}
.prm-icon-btn:hover { color: #dc2626; border-color: color-mix(in srgb, #dc2626 40%, transparent); }
.prm-file .prm-btn-line { margin-top: 10px; display: block; text-align: center; }

/* ---------- 表单 ---------- */
.prm-label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 600; }
.prm-input {
    width: 100%; box-sizing: border-box; padding: 8px 10px; font-size: 14px;
    border-radius: 9px; border: 1px solid var(--border-color, #e5e7eb);
    background: var(--bg-secondary, #f9fafb); color: var(--text-primary, #111827);
}
.prm-input:focus { outline: none; border-color: var(--accent, #136ce9); }
.prm-tip { margin: 6px 0 0; font-size: 12px; line-height: 1.6; color: var(--text-secondary, #6b7280); }
.prm-out-row { display: flex; align-items: center; gap: 6px; }
.prm-out-row .prm-input { flex: 1 1 auto; min-width: 0; }
.prm-suffix { flex: 0 0 auto; font-size: 13px; color: var(--text-secondary, #6b7280); }

/* ---------- 汇总 ---------- */
.prm-summary { margin-top: 8px; font-size: 12.5px; color: var(--text-secondary, #6b7280); }
.prm-bar {
    margin-top: 6px; height: 6px; border-radius: 99px; overflow: hidden;
    background: color-mix(in srgb, var(--text-primary, #111827) 10%, transparent);
}
.prm-bar-fill { height: 100%; width: 0; background: #dc2626; transition: width .25s ease; }

/* ---------- 按钮 ---------- */
.prm-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 8px 14px; font-size: 13.5px; font-weight: 600; cursor: pointer;
    border-radius: 10px; border: 1px solid var(--border-color, #e5e7eb);
    background: var(--bg-secondary, #f9fafb); color: var(--text-primary, #111827);
    transition: background .15s, border-color .15s, opacity .15s;
}
.prm-btn:hover:not(:disabled) { border-color: color-mix(in srgb, var(--accent, #136ce9) 40%, transparent); }
.prm-btn:disabled { opacity: .5; cursor: not-allowed; }
.prm-btn-go { background: var(--accent, #136ce9); border-color: var(--accent, #136ce9); color: #fff; }
.prm-btn-go:hover:not(:disabled) { filter: brightness(1.06); }
.prm-btn-block { width: 100%; margin-top: 10px; box-sizing: border-box; }
.prm-btn-xs { padding: 5px 9px; font-size: 12px; border-radius: 8px; }
.prm-btn-line { text-decoration: none; }
.prm-quick { display: flex; flex-wrap: wrap; gap: 6px; }
.prm-only { margin-top: 6px; }
.prm-btn.is-on {
    background: var(--accent, #136ce9); border-color: var(--accent, #136ce9); color: #fff;
}
.prm-seg { display: flex; gap: 6px; }
.prm-seg .prm-btn { flex: 1 1 0; }
.prm-spin-dot {
    width: 13px; height: 13px; border-radius: 50%; flex: 0 0 auto;
    border: 2px solid rgba(255, 255, 255, .35); border-top-color: #fff;
    animation: prm-spin .7s linear infinite;
}
@keyframes prm-spin { to { transform: rotate(360deg); } }

/* ---------- 预览栏 ---------- */
.prm-bar-top {
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
    flex-wrap: wrap; margin-bottom: 10px; padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color, #e5e7eb);
}
.prm-bar-left { display: flex; align-items: baseline; gap: 8px; }
.prm-bar-right { display: flex; align-items: center; gap: 10px; }
.prm-bar-title { margin: 0; font-size: 14px; font-weight: 700; }
.prm-bar-count, .prm-sel-count { font-size: 12.5px; color: var(--text-secondary, #6b7280); }
.prm-sel-count { color: #dc2626; font-weight: 600; }
.prm-bar-hint { font-size: 12px; color: var(--text-secondary, #6b7280); }

/* ---------- 页面网格 ---------- */
.prm-stage { flex: 1 1 auto; min-height: 320px; }
.prm-grid {
    display: grid; gap: 12px;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    contain: layout style;   /* 上百张卡时把重排限制在网格内部 */
}
.prm-page {
    position: relative; cursor: pointer; padding: 6px; box-sizing: border-box;
    contain: layout style;
    border-radius: 12px; border: 2px solid transparent;
    background: transparent; transition: border-color .15s, background .15s;
}
.prm-page:hover { border-color: color-mix(in srgb, var(--accent, #136ce9) 40%, transparent); }
.prm-page:focus-visible { outline: 2px solid var(--accent, #136ce9); outline-offset: 2px; }
.prm-page.is-del {
    border-color: #dc2626;
    background: color-mix(in srgb, #dc2626 8%, transparent);
}
.prm-page.is-del .prm-thumb { opacity: .55; filter: grayscale(.65); }
.prm-page.is-keep {
    border-color: #16a34a;
    background: color-mix(in srgb, #16a34a 10%, transparent);
}
.prm-thumb {
    position: relative; width: 100%; aspect-ratio: 3 / 4; border-radius: 8px;
    overflow: hidden; display: flex; align-items: center; justify-content: center;
    background: var(--bg-secondary, #f3f4f6);
    border: 1px solid var(--border-color, #e5e7eb);
}
.prm-thumb canvas { width: 100%; height: 100%; object-fit: contain; display: block; }
.prm-page-no {
    position: absolute; left: 0; right: 0; bottom: 0; text-align: center;
    font-size: 10.5px; padding: 2px 0; color: #fff; background: rgba(0, 0, 0, .5);
}
.prm-mark {
    position: absolute; top: 6px; right: 6px; width: 22px; height: 22px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; font-size: 12px;
    background: #dc2626; color: #fff; box-shadow: 0 2px 6px rgba(0, 0, 0, .25);
}
.prm-mark.is-keep { background: #16a34a; }
/* 缩略图上的放大查看按钮：默认隐藏，悬停/聚焦时显示，点击打开灯箱（不触发选择） */
.prm-thumb-zoom {
    position: absolute; top: 6px; left: 6px; z-index: 3;
    width: 26px; height: 26px; border-radius: 50%; cursor: pointer;
    display: none; align-items: center; justify-content: center; font-size: 13px; line-height: 1;
    color: #fff; background: rgba(17, 24, 39, .62);
    border: 1px solid rgba(255, 255, 255, .5); padding: 0;
}
.prm-thumb-zoom:hover { background: var(--accent, #136ce9); }
.prm-page:hover .prm-thumb-zoom,
.prm-page:focus-within .prm-thumb-zoom,
.prm-thumb-zoom:focus-visible { display: flex; }
.prm-spin {
    position: absolute; inset: 0; margin: auto; width: 18px; height: 18px; border-radius: 50%;
    border: 2px solid color-mix(in srgb, var(--accent, #136ce9) 30%, transparent);
    border-top-color: var(--accent, #136ce9);
    animation: prm-spin .7s linear infinite;
}
.prm-empty {
    min-height: 300px; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 10px;
    color: var(--text-secondary, #6b7280); font-size: 13.5px; text-align: center;
}
.prm-empty-ico { font-size: 46px; line-height: 1; }
.prm-empty-mark {
    margin: 18px 0 0; text-align: center; font-size: 13px; color: var(--text-secondary, #6b7280);
}

/* ---------- 说明 ---------- */
.prm-about { margin-top: 26px; font-size: 13px; line-height: 1.75; color: var(--text-secondary, #6b7280); }
.prm-about-title { font-size: 15px; font-weight: 700; color: var(--text-primary, #111827); margin: 0 0 8px; }
.prm-about-list { margin: 0 0 16px; padding-left: 20px; }
.prm-about-list li { margin-bottom: 4px; }
.prm-about h3 { font-size: 14px; font-weight: 700; color: var(--text-primary, #111827); margin: 18px 0 8px; }
.prm-about table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.prm-about th, .prm-about td {
    border: 1px solid var(--border-color, #e5e7eb); padding: 7px 10px; text-align: left; vertical-align: top;
}
.prm-about th { background: var(--bg-secondary, #f9fafb); color: var(--text-primary, #111827); }
.prm-hint { margin-top: 12px; font-size: 12.5px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1099px) {
    .prm-app { grid-template-columns: 280px minmax(0, 1fr); }
    .prm-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
}
@media (max-width: 767px) {
    .prm { padding: 16px 14px 44px; }
    .prm-app { grid-template-columns: minmax(0, 1fr); }
    .prm-side { position: static; }
    .prm-hero-ico { flex-basis: 44px; width: 44px; height: 44px; font-size: 22px; border-radius: 13px; }
    .prm-title { font-size: 21px; }
    .prm-grid { grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 10px; }
    .prm-bar-hint { display: none; }
    .prm-input { font-size: 16px; }         /* 防 iOS 聚焦缩放 */
    .prm-btn-block { padding: 11px 14px; }
}
@media (max-width: 420px) {
    .prm-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .prm-quick .prm-btn-xs { flex: 1 1 46%; }
    .prm-about table { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
    .prm-spin, .prm-spin-dot { animation: none; }
    .prm-bar-fill { transition: none; }
}

/* ---------- 页面预览放大 / 全屏 灯箱 ---------- */
.prm-zoom {
    position: fixed; inset: 0; z-index: 999; display: flex; align-items: center; justify-content: center;
}
.prm-zoom[hidden] { display: none !important; }
.prm-zoom-mask { position: absolute; inset: 0; background: rgba(8, 12, 22, .82); }
.prm-zoom-box {
    position: relative; z-index: 1; display: flex; flex-direction: column; width: min(94vw, 1100px);
    height: min(92vh, 880px); background: var(--bg-primary, #fff); border-radius: 16px; overflow: hidden;
    box-shadow: 0 30px 90px rgba(0, 0, 0, .5);
}
.prm-zoom-bar {
    display: flex; align-items: center; gap: 10px; padding: 10px 14px; flex: 0 0 auto;
    border-bottom: 1px solid var(--border-color, #e5e7eb); background: var(--bg-primary, #fff);
}
.prm-zoom-title { font-size: 14px; font-weight: 700; }
.prm-zoom-val {
    font-size: 12.5px; color: var(--text-secondary, #6b7280); font-variant-numeric: tabular-nums;
    min-width: 44px;
}
.prm-zoom-btns { margin-left: auto; display: flex; gap: 6px; }
.prm-zoom-btn {
    min-width: 32px; height: 32px; padding: 0 8px; cursor: pointer; font-size: 15px; line-height: 1;
    color: var(--text-primary, #111827); background: var(--bg-secondary, #f3f4f6);
    border: 1px solid var(--border-color, #e5e7eb); border-radius: 8px;
}
.prm-zoom-btn:hover { border-color: var(--accent, #136ce9); color: var(--accent, #136ce9); }
.prm-zoom-stage {
    flex: 1 1 auto; min-height: 0; position: relative; overflow: auto; padding: 16px;
    display: flex; align-items: center; justify-content: center;
    cursor: grab;
}
.prm-zoom-stage.is-pan { cursor: grabbing; }
.prm-zoom-stage canvas {
    display: block; max-width: none; border-radius: 4px;
    box-shadow: 0 10px 34px rgba(0, 0, 0, .35); background: #fff;
    transform-origin: top left;
}
.prm-zoom-hint {
    margin: 0; flex: 0 0 auto; padding: 8px 14px; font-size: 12px; line-height: 1.5;
    color: var(--text-secondary, #6b7280); border-top: 1px solid var(--border-color, #e5e7eb);
}
/* 灯箱打开时锁住页面滚动 */
body.prm-zoom-open { overflow: hidden; }
@media (max-width: 420px) {
    .prm-zoom-box { width: 100vw; height: 100vh; border-radius: 0; }
    .prm-zoom-btns .prm-zoom-btn { min-width: 30px; }
}