/* wmclean 前端样式
   配色跟随系统深浅色，不做手动切换开关 —— 这是个用完即走的工具页，
   多一个开关不如少一个决策。 */

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --text: #1a1d21;
  --text-muted: #6b7280;
  --border: #e3e6ea;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #eff4ff;
  --ok: #059669;
  --warn: #d97706;
  --danger: #dc2626;
  --tier-a: #059669;
  --tier-b: #2563eb;
  --tier-c: #d97706;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
}

.tool-network{max-width:960px;margin:20px auto 34px;padding:16px 20px;display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:9px 20px;color:var(--muted);font-size:.86rem}.tool-network strong{color:var(--text)}.tool-network a{color:inherit;text-underline-offset:3px}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #171a1f;
    --surface-2: #1f232a;
    --text: #e6e8eb;
    --text-muted: #9aa3ad;
    --border: #2a2f37;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-soft: #17233a;
    --ok: #34d399;
    --warn: #fbbf24;
    --danger: #f87171;
    --tier-a: #34d399;
    --tier-b: #60a5fa;
    --tier-c: #fbbf24;
    --shadow: 0 1px 3px rgba(0,0,0,.4);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ---------- header ---------- */
.site-header { padding: 40px 0 24px; }
.language-nav { display:flex; justify-content:flex-end; gap:.45rem; margin-bottom:.55rem; }
.language-nav a { color:var(--text-muted); text-decoration:none; padding:.2rem .55rem; border:1px solid var(--border); border-radius:999px; font-size:.82rem; }
.language-nav a:hover, .language-nav a.active { color:var(--accent); border-color:var(--accent); background:var(--accent-soft); }
.language-suggestion { display:flex; align-items:center; justify-content:center; gap:.8rem; padding:.55rem 1rem; background:var(--accent-soft); border-bottom:1px solid var(--border); font-size:.9rem; }
.language-suggestion a { color:var(--accent); font-weight:600; }
.language-suggestion button { border:0; background:transparent; color:var(--text-muted); font-size:1.2rem; cursor:pointer; }
.logo { margin: 0 0 6px; font-size: 1.7rem; font-weight: 650; letter-spacing: -.01em; }
.tagline { margin: 0; color: var(--text-muted); font-size: .95rem; max-width: 70ch; }

/* ---------- card ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 18px; font-size: 1.15rem; display: flex; align-items: center; gap: 10px; }
.card h3 { margin: 20px 0 10px; font-size: 1rem; }
.card h4 { margin: 16px 0 8px; font-size: .9rem; color: var(--text-muted); }

.step-num {
  display: inline-grid; place-items: center;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--accent); color: #fff;
  font-size: .8rem; font-weight: 600; flex: none;
}

.hidden { display: none !important; }
.muted { color: var(--text-muted); }
.small { font-size: .85rem; }

/* ---------- dropzone ---------- */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 44px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  background: var(--surface-2);
}
.ocr-language-row { display:flex; align-items:center; gap:.65rem; margin:.8rem 0; color:var(--text-muted); font-size:.88rem; }
.ocr-language-row select { max-width:240px; padding:.38rem .55rem; color:var(--text); background:var(--surface); border:1px solid var(--border); border-radius:6px; }
.dropzone:hover, .dropzone:focus-visible, .dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
  outline: none;
}
.dz-icon {
  width: 40px; height: 40px; margin-bottom: 10px;
  fill: none; stroke: var(--accent); stroke-width: 1.6;
  stroke-linecap: round; stroke-linejoin: round;
}
.dz-main { margin: 0 0 4px; font-weight: 500; }
.dz-sub { margin: 0; color: var(--text-muted); font-size: .85rem; }

.notice {
  margin: 16px 0 0; padding: 10px 14px;
  background: var(--surface-2); border-left: 3px solid var(--warn);
  border-radius: 4px; font-size: .85rem; color: var(--text-muted);
}

/* ---------- progress ---------- */
.progress-row { display: flex; align-items: center; gap: 16px; }
.spinner {
  width: 28px; height: 28px; flex: none;
  border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2.5s; } }
#progress-title { margin: 0; font-weight: 500; }
#progress-detail { margin: 2px 0 0; font-size: .85rem; }

/* ---------- 结果布局 ---------- */
.result-grid { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(0,1fr); gap: 24px; }
@media (max-width: 900px) { .result-grid { grid-template-columns: 1fr; } }

.selection-summary {
  display: grid; grid-template-columns: auto auto 1fr; align-items: center; gap: 8px 18px;
  margin: -4px 0 18px; padding: 11px 14px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--accent-soft); font-size: .88rem;
}
.selection-summary strong { color: var(--accent); }
.selection-summary span { font-weight: 600; }
.selection-summary small { color: var(--text-muted); }

.preview-toolbar { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.preview-col { min-width: 0; }
.preview-viewport {
  width: 100%; max-height: min(72vh, 760px); overflow: auto;
  border: 1px solid var(--border); border-radius: 7px; background: var(--surface-2);
  overscroll-behavior: contain; scrollbar-gutter: stable;
}

.canvas-wrap {
  position: relative; display: inline-block; max-width: 100%;
  border: 0; border-radius: 0; overflow: visible;
  background: var(--surface-2);
  /* 棋盘格背景，透明图也能看清 */
  background-image:
    linear-gradient(45deg, rgba(128,128,128,.08) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(128,128,128,.08) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(128,128,128,.08) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(128,128,128,.08) 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}
#preview-img { display: block; max-width: 100%; height: auto; }
.box-layer { position: absolute; inset: 0; }
.canvas-wrap.drawing { cursor: crosshair; }

.wbox {
  position: absolute;
  border: 2px solid var(--accent);
  background: rgba(37,99,235,.14);
  cursor: move;
}
.wbox.src-user   { border-color: var(--ok);   background: rgba(5,150,105,.14); }
.wbox.src-tile   { border-style: dashed; }
.wbox .wbox-label {
  position: absolute; top: -21px; left: -2px;
  background: var(--accent); color: #fff;
  font-size: .68rem; padding: 1px 6px; border-radius: 3px;
  white-space: nowrap; max-width: 240px; overflow: hidden; text-overflow: ellipsis;
}
.wbox.src-user .wbox-label { background: var(--ok); }
.wbox .wbox-del {
  position: absolute; top: -9px; right: -9px;
  width: 19px; height: 19px; border-radius: 50%;
  background: var(--danger); color: #fff; border: none;
  font-size: .75rem; line-height: 1; cursor: pointer; padding: 0;
}
.wbox .wbox-handle {
  position: absolute; right: -6px; bottom: -6px;
  width: 12px; height: 12px; background: var(--accent);
  border: 2px solid var(--surface); border-radius: 2px; cursor: nwse-resize;
}
.wbox.src-user .wbox-handle { background: var(--ok); }
.wbox.candidate-preview {
  pointer-events: none; border: 3px solid var(--warn); background: rgba(217,119,6,.2);
  animation: candidate-pulse .8s ease-in-out 2;
}
.wbox.candidate-preview .wbox-label { background: var(--warn); }
@keyframes candidate-pulse { 50% { box-shadow: 0 0 0 6px rgba(217,119,6,.18); } }

/* ---------- 检测详情 ---------- */
.info-line {
  font-size: .85rem; color: var(--text-muted);
  padding-bottom: 12px; margin-bottom: 8px; border-bottom: 1px solid var(--border);
}

.group { border-bottom: 1px solid var(--border); }
.group:last-of-type { border-bottom: none; }
.group > summary {
  cursor: pointer; padding: 11px 0; font-weight: 500; font-size: .92rem;
  display: flex; align-items: center; gap: 8px; list-style: none;
}
.group > summary::-webkit-details-marker { display: none; }
.group > summary::after {
  content: "›"; margin-left: auto; color: var(--text-muted);
  transform: rotate(90deg); transition: transform .15s;
}
.group[open] > summary::after { transform: rotate(270deg); }
.group-body { padding: 0 0 14px; }

.dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.dot-visible { background: var(--accent); }
.dot-meta    { background: var(--tier-a); }
.dot-decoded { background: var(--tier-b); }
.dot-signal  { background: var(--tier-c); }

.badge {
  margin-left: 2px; padding: 1px 8px; border-radius: 999px;
  background: var(--surface-2); color: var(--text-muted);
  font-size: .75rem; font-weight: 600;
}
.badge.has { background: var(--accent); color: #fff; }

.tier-note {
  margin: 0 0 10px; font-size: .8rem; padding: 7px 10px;
  border-radius: 5px; background: var(--surface-2); border-left: 3px solid var(--border);
}
.tier-note.tier-a { border-left-color: var(--tier-a); }
.tier-note.tier-b { border-left-color: var(--tier-b); }
.tier-note.tier-c { border-left-color: var(--tier-c); }

.item {
  padding: 9px 11px; margin-bottom: 7px;
  background: var(--surface-2); border-radius: 6px; font-size: .85rem;
}
.candidate-item { border: 1px solid transparent; transition: border-color .12s, background .12s; }
.candidate-item.selected { border-color: var(--accent); background: var(--accent-soft); }
.item.hl { border-left: 3px solid var(--tier-a); }
.item-key { color: var(--text-muted); font-size: .76rem; font-family: ui-monospace, monospace; }
.item-val { word-break: break-all; margin-top: 2px; }
.item-meta { color: var(--text-muted); font-size: .75rem; margin-top: 3px; }
.item-meta.candidate-warning { color: #9a6700; font-weight: 600; }
.candidate-choice {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 8px;
  padding: 5px 9px; border: 1px solid var(--border); border-radius: 5px;
  background: var(--surface); cursor: pointer; font-size: .8rem; font-weight: 600;
}
.candidate-choice:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.candidate-choice input { margin: 0; }
.candidate-actions { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; margin-top: 8px; }
.candidate-actions .candidate-choice { margin-top: 0; }
.candidate-locate {
  padding: 5px 9px; border: 0; background: transparent; color: var(--accent);
  font: inherit; font-size: .8rem; font-weight: 600; cursor: pointer;
}
.candidate-locate:hover { text-decoration: underline; }
.item-content {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--surface); padding: 6px 9px; border-radius: 4px;
  margin-top: 5px; word-break: break-all; border: 1px solid var(--border);
}

.empty { color: var(--text-muted); font-size: .85rem; padding: 4px 0; }

.warn-item {
  margin-top: 10px; padding: 8px 11px; font-size: .8rem;
  background: var(--surface-2); border-left: 3px solid var(--warn); border-radius: 4px;
}

/* ---------- 清洗面板 ---------- */
.clean-panel { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); }
.opt-row { display: flex; gap: 22px; flex-wrap: wrap; margin-bottom: 14px; }
.chk { display: flex; align-items: center; gap: 7px; font-size: .9rem; cursor: pointer; }

.clean-modes {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px; margin: 4px 0 14px;
}
.clean-mode {
  display: flex; align-items: flex-start; gap: 10px; padding: 12px 13px;
  border: 1px solid var(--border); border-radius: 7px; cursor: pointer;
  background: var(--surface); transition: border-color .12s, background .12s;
}
.clean-mode:hover, .clean-mode:has(input:checked) {
  border-color: var(--accent); background: var(--accent-soft);
}
.clean-mode input { margin-top: 4px; flex: none; }
.clean-mode span { display: block; min-width: 0; }
.clean-mode strong { display: block; font-size: .88rem; }
.clean-mode strong em {
  margin-left: 5px; padding: 1px 6px; border-radius: 999px;
  color: #fff; background: var(--ok); font-size: .68rem; font-style: normal;
}
.clean-mode small { display: block; margin-top: 3px; color: var(--text-muted); line-height: 1.45; }
.clean-mode.disabled { opacity: .55; cursor: not-allowed; }
@media (max-width: 700px) { .clean-modes { grid-template-columns: 1fr; } }

@media (max-width: 700px) {
  .wrap { padding-left: 12px; padding-right: 12px; }
  .site-header { padding-top: 20px; }
  .language-nav { overflow-x: auto; justify-content: flex-start; padding-bottom: 4px; }
  .card { padding: 16px; }
  .selection-summary { grid-template-columns: 1fr auto; gap: 4px 10px; }
  .selection-summary small { grid-column: 1 / -1; }
  .preview-viewport { max-height: 62vh; }
  .candidate-choice, .candidate-locate { min-height: 38px; }
  .clean-panel .btn-primary { width: 100%; }
}

.levels { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px,1fr)); gap: 10px; margin-bottom: 18px; }
.level {
  border: 1px solid var(--border); border-radius: 7px; padding: 11px 13px;
  cursor: pointer; transition: border-color .12s, background .12s;
  background: var(--surface);
}
.level:hover { border-color: var(--accent); }
.level.sel { border-color: var(--accent); background: var(--accent-soft); }
.level-name { font-weight: 600; font-size: .88rem; margin-bottom: 3px; }
.level-desc { font-size: .78rem; color: var(--text-muted); line-height: 1.45; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block; padding: 8px 16px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  font-size: .88rem; cursor: pointer; text-decoration: none;
  font-family: inherit; transition: background .12s, border-color .12s;
}
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-sm { padding: 5px 11px; font-size: .8rem; }
.btn-lg { padding: 11px 26px; font-size: .95rem; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 500; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- 完成 ---------- */
.done-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 24px; }
@media (max-width: 900px) { .done-grid { grid-template-columns: 1fr; } }
.result-preview { max-width: 100%; height: auto; border: 1px solid var(--border); border-radius: 6px; }
.steps { margin: 0 0 18px; padding-left: 20px; font-size: .85rem; }
.steps li { margin-bottom: 4px; }
#download-link { margin-right: 8px; }

/* ---------- 错误 ---------- */
.error-box {
  padding: 13px 16px; border-radius: var(--radius); margin-bottom: 20px;
  background: var(--surface); border: 1px solid var(--danger);
  border-left-width: 4px; color: var(--text); font-size: .9rem;
}

/* ---------- 说明正文 ---------- */
.prose { font-size: .9rem; }
.prose h2 { margin-top: 0; }
.prose h3 { margin-top: 22px; }
.prose ul { padding-left: 22px; }
.prose li { margin-bottom: 7px; }
.prose p { max-width: 78ch; }

/* ---------- footer ---------- */
.site-footer {
  margin-top: 40px; padding: 24px 0 40px;
  border-top: 1px solid var(--border); color: var(--text-muted); font-size: .82rem;
}
.site-footer p { margin: 0; }