/* 临时文件中转站 —— 浅色主题，全部资源本地，无任何外链字体/图标库 */

:root {
  --bg: #f4f6fb;
  --bg-accent: #e9edf9;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --border: #e3e8f0;
  --border-strong: #cfd8e6;
  --ink: #0f172a;
  --ink-soft: #475569;
  --ink-muted: #8a97ab;
  --brand: #4f46e5;
  --brand-dark: #4338ca;
  --brand-soft: #eef0ff;
  --brand-line: #c7ccf7;
  --ok: #059669;
  --ok-soft: #e7f7f0;
  --warn: #b45309;
  --warn-soft: #fdf3e3;
  --danger: #dc2626;
  --danger-soft: #fdecec;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05), 0 1px 3px rgba(15, 23, 42, .04);
  --shadow-md: 0 10px 30px -12px rgba(15, 23, 42, .18), 0 2px 8px rgba(15, 23, 42, .05);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei",
          "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1100px 620px at 12% -8%, var(--brand-soft) 0%, transparent 62%),
    radial-gradient(900px 520px at 92% 4%, #e6f4fb 0%, transparent 58%),
    var(--bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 56px;
}

/* ------------------------------- 头部 --------------------------------- */

.hero { margin-bottom: 26px; }

.brand { display: flex; align-items: flex-start; gap: 14px; }

.logo {
  flex: none;
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(145deg, var(--brand) 0%, #7c5cf0 100%);
  box-shadow: 0 8px 20px -8px rgba(79, 70, 229, .6);
}

.brand-text h1 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.2px;
}

.sub {
  margin: 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  max-width: 46em;
}

.privacy {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.privacy li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px 5px 9px;
  font-size: 12.5px;
  color: var(--ok);
  background: var(--ok-soft);
  border: 1px solid #c8ecdd;
  border-radius: 999px;
  white-space: nowrap;
}

.privacy .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ok);
}

/* ------------------------------- 分页 --------------------------------- */

.tabs {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  margin-bottom: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

.tab {
  appearance: none;
  border: 0;
  cursor: pointer;
  padding: 8px 20px;
  border-radius: 999px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
  background: transparent;
  transition: background .16s, color .16s;
}

.tab:hover { color: var(--ink); background: var(--surface-soft); }

.tab.is-active {
  color: #fff;
  background: linear-gradient(145deg, var(--brand) 0%, #6d5cf0 100%);
  box-shadow: 0 6px 16px -8px rgba(79, 70, 229, .75);
}

.panel { display: none; }
.panel.is-active { display: block; animation: rise .22s ease-out; }

@keyframes rise {
  from { opacity: 0; transform: translateY(5px); }
  to   { opacity: 1; transform: none; }
}

/* ------------------------------- 卡片 --------------------------------- */

.dropzone, .result, .picked {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.dropzone {
  padding: 38px 22px;
  text-align: center;
  cursor: pointer;
  border-style: dashed;
  border-width: 1.5px;
  border-color: var(--border-strong);
  transition: border-color .16s, background .16s, transform .16s;
}

.dropzone:hover,
.dropzone:focus-visible { border-color: var(--brand-line); background: var(--surface-soft); outline: none; }

.dropzone.is-over {
  border-color: var(--brand);
  background: var(--brand-soft);
  transform: scale(1.005);
}

.dz-icon {
  display: inline-grid; place-items: center;
  width: 58px; height: 58px;
  margin-bottom: 12px;
  border-radius: 18px;
  color: var(--brand);
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
}

.dz-title { margin: 0 0 4px; font-size: 16px; font-weight: 650; }
.dz-hint  { margin: 0 0 10px; font-size: 13.5px; color: var(--ink-soft); }
.link     { color: var(--brand); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.dz-limit { margin: 0; font-size: 12.5px; color: var(--ink-muted); }

/* 已选文件 */
.picked {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding: 14px 16px;
}

.picked-icon {
  flex: none;
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 11px;
  color: var(--brand);
  background: var(--brand-soft);
}

.picked-meta { flex: 1; min-width: 0; }

.picked-name {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.picked-size { margin: 1px 0 0; font-size: 12.5px; color: var(--ink-muted); }

/* 进度 */
.progress { margin-top: 14px; }

.progress-track {
  height: 8px;
  border-radius: 999px;
  background: var(--bg-accent);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand) 0%, #7c5cf0 100%);
  transition: width .18s ease-out;
}

.progress-text {
  margin: 8px 0 0;
  font-size: 12.5px;
  color: var(--ink-soft);
  text-align: center;
}

/* ------------------------------- 按钮 --------------------------------- */

.actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.btn-primary, .btn-ghost {
  appearance: none;
  cursor: pointer;
  font: inherit;
  font-size: 14.5px;
  font-weight: 600;
  border-radius: 11px;
  padding: 11px 22px;
  transition: transform .12s, box-shadow .16s, background .16s, color .16s;
}

.btn-primary {
  flex: 1 1 auto;
  border: 0;
  color: #fff;
  background: linear-gradient(145deg, var(--brand) 0%, #6d5cf0 100%);
  box-shadow: 0 10px 22px -12px rgba(79, 70, 229, .9);
}

.btn-primary:hover:not(:disabled) { transform: translateY(-1px); }

.btn-primary:disabled {
  cursor: not-allowed;
  color: var(--ink-muted);
  background: var(--bg-accent);
  box-shadow: none;
}

.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--ink-soft);
  background: var(--surface);
}

.btn-ghost:hover { border-color: var(--brand-line); color: var(--brand); background: var(--brand-soft); }

#upload-btn, #lookup-btn { width: 100%; margin-top: 16px; }

/* ----------------------------- 结果卡片 ------------------------------- */

.result { margin-top: 16px; padding: 24px 22px; box-shadow: var(--shadow-md); }

.result-label {
  margin: 0 0 12px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.code-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--brand-soft) 0%, #f6f5ff 100%);
  border: 1px solid var(--brand-line);
}

.code {
  font-family: var(--mono);
  font-size: 40px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--brand-dark);
  line-height: 1.1;
  word-break: break-all;
}

.btn-copy {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-dark);
  background: #fff;
  border: 1px solid var(--brand-line);
  border-radius: 10px;
  cursor: pointer;
  transition: background .16s, transform .12s;
}

.btn-copy:hover { background: var(--brand-soft); transform: translateY(-1px); }
.btn-copy.is-done { color: var(--ok); border-color: #c8ecdd; background: var(--ok-soft); }

/* 事实列表 */
.facts {
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 15px;
  background: var(--surface);
}

.facts dt { font-size: 13px; color: var(--ink-muted); flex: none; }

.facts dd {
  margin: 0;
  font-size: 13.5px;
  font-weight: 600;
  text-align: right;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  min-width: 0;
}

.countdown { font-family: var(--mono); color: var(--brand-dark); }
.countdown.is-urgent { color: var(--warn); }
.countdown.is-dead { color: var(--danger); }

/* 文件大卡片 */
.file-hero {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius);
  background: var(--surface-soft);
  border: 1px solid var(--border);
}

.file-hero-icon {
  flex: none;
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 13px;
  color: var(--brand);
  background: var(--brand-soft);
}

.file-hero-name {
  margin: 0;
  font-size: 15px;
  font-weight: 650;
  word-break: break-all;
}

.file-hero-size { margin: 2px 0 0; font-size: 12.5px; color: var(--ink-muted); }

/* --------------------------- 下载码输入格 ----------------------------- */

.field-label {
  display: block;
  margin-bottom: 10px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
}

.code-inputs { display: flex; gap: 10px; justify-content: center; }

.code-cell {
  width: 100%;
  max-width: 62px;
  aspect-ratio: 3 / 4;
  text-align: center;
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
  background: var(--surface);
  border: 1.5px solid var(--border-strong);
  border-radius: 13px;
  box-shadow: var(--shadow-sm);
  transition: border-color .14s, box-shadow .14s;
  padding: 0;
}

.code-cell:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, .16);
}

.code-cell.is-filled { border-color: var(--brand-line); background: var(--surface); }

.field-hint {
  margin: 10px 0 0;
  font-size: 12.5px;
  color: var(--ink-muted);
  text-align: center;
}

.alert {
  margin: 14px 0 0;
  padding: 11px 14px;
  font-size: 13.5px;
  border-radius: 11px;
  background: var(--danger-soft);
  border: 1px solid #f6cfcf;
  color: var(--danger);
}

.alert.is-warn {
  background: var(--warn-soft);
  border-color: #f2ddb8;
  color: var(--warn);
}

/* ------------------------------- 页脚 --------------------------------- */

.footnote {
  margin: 18px 0 0;
  font-size: 12.5px;
  color: var(--ink-muted);
  line-height: 1.65;
}

.site-foot {
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 12.5px;
  color: var(--ink-soft);
}

.site-foot p { margin: 0; }
.site-foot .muted { margin-top: 4px; color: var(--ink-muted); font-family: var(--mono); font-size: 11.5px; }

/* ------------------------------- 响应式 ------------------------------- */

@media (max-width: 560px) {
  .page { padding: 24px 16px 40px; }
  .brand-text h1 { font-size: 19px; }
  .code { font-size: 30px; letter-spacing: .1em; }
  .code-box { flex-direction: column; align-items: stretch; text-align: center; gap: 12px; }
  .btn-copy { justify-content: center; }
  .code-inputs { gap: 7px; }
  .code-cell { font-size: 21px; }
  .tab { padding: 8px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ---------------------- 元数据清理报告 ---------------------- */

.clean-report {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-soft);
  padding: 14px 15px 12px;
}

.clean-head {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.clean-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.clean-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.clean-badge.tone-good { color: var(--ok); background: var(--ok-soft); border-color: #bfe6d5; }
.clean-badge.tone-warn { color: var(--warn); background: var(--warn-soft); border-color: #f0dcb8; }
.clean-badge.tone-bad { color: var(--danger); background: var(--danger-soft); border-color: #f5c6c6; }

.clean-format { font-size: 12.5px; color: var(--ink-muted); }

.clean-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.clean-list li {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  padding-left: 18px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-soft);
}

.clean-list li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 8px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ok);
}

.clean-list li.is-warn::before { background: var(--warn); }

.clean-list li b { color: var(--ink); font-weight: 600; }

.clean-list li span { color: var(--ink-muted); }

.clean-note {
  margin: 11px 0 0;
  padding: 9px 11px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.clean-detail { margin-top: 10px; font-size: 12.5px; }

.clean-detail summary {
  cursor: pointer;
  padding: 3px 0;
  color: var(--ink-muted);
  user-select: none;
}

.clean-detail summary:hover { color: var(--brand); }

.clean-detail-list {
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.clean-detail-list > div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 11px;
  background: var(--surface);
}

.clean-detail-list dt { color: var(--ink-muted); }

.clean-detail-list dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
}

.clean-detail-note {
  margin: 8px 0 0;
  color: var(--ink-muted);
  line-height: 1.6;
}

/* 取件页的隐私徽章：只说有没有被处理过 */
.privacy-badge {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 14px 0 0;
  padding: 9px 12px;
  font-size: 12.5px;
  line-height: 1.5;
  border-radius: 10px;
}

.privacy-badge::before {
  content: '';
  flex: none;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.privacy-badge.tone-good { color: var(--ok); background: var(--ok-soft); }
.privacy-badge.tone-warn { color: var(--warn); background: var(--warn-soft); }