.perk-board {
  /* 版式概念：顶部只保留品牌和入口，筛选收进左侧，右侧专注展示信息卡片。 */
  --background: #f7f8fa;
  --foreground: #292d34;
  --card: #ffffff;
  --primary: #0f766e;
  --primary-foreground: #ffffff;
  --secondary: #f1f3f5;
  --secondary-foreground: #484e58;
  --muted: #f6f7f9;
  --muted-foreground: #626a76;
  --border: #dfe3e8;
  --input: #dfe3e8;
  --ring: #149482;
  --accent: #149482;
  --accent-strong: #0f766e;
  --accent-soft: #e8f6f3;
  --accent-foreground: #ffffff;
  --overlay: #292d3466;
  --radius: 20px;
  --motion-fast: 160ms;
  --motion-ease: ease-out;
  min-height: 100dvh;
  background: var(--background);
  color: var(--foreground);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
.demo-loading, .board-loading { display: grid; place-items: center; min-height: 100dvh; color: var(--muted-foreground); font-size: 14px; }
.perk-board *, .perk-board *::before, .perk-board *::after { box-sizing: border-box; }
.perk-board button, .perk-board input { font: inherit; }
.perk-board button, .perk-board summary { cursor: pointer; }
.perk-board button:disabled { cursor: not-allowed; }
.perk-board :is(button, a, input, summary):focus-visible { outline: 2px solid var(--ring); outline-offset: 3px; }
.perk-board [data-slot="button"] { min-height: 44px; padding-inline: 18px; border-radius: 12px; transition: background-color var(--motion-fast) var(--motion-ease), border-color var(--motion-fast) var(--motion-ease), color var(--motion-fast) var(--motion-ease); }
.perk-board [data-size="icon"] { width: 44px; padding: 0; }
.perk-board [data-slot="badge"] { border-radius: 999px; padding: 4px 10px; font-weight: 400; }

.demo-shell { max-width: 1360px; margin: 0 auto; padding: 0 32px 40px; }
.demo-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 72px; margin-bottom: 24px; border-bottom: 1px solid var(--border); }
.demo-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--foreground); font-size: 22px; font-weight: 700; letter-spacing: -.6px; text-decoration: none; }
.demo-brand svg { width: 25px; height: 25px; color: var(--accent-strong); }
.demo-header-actions { display: flex; align-items: center; gap: 8px; }
.demo-header-actions > [data-slot="badge"] { color: var(--muted-foreground); }
.perk-board .demo-header-actions > a { color: var(--muted-foreground); }

.demo-layout { display: grid; grid-template-columns: 272px minmax(0, 1fr); gap: 28px; align-items: start; }
.demo-sidebar { position: sticky; top: 20px; max-height: calc(100dvh - 40px); overflow-y: auto; padding: 20px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); }
.demo-filter-toggle { display: none; }
.demo-filter-body { display: block; }
.demo-sidebar-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 16px; }
.demo-sidebar-head h2 { margin: 0; font-size: 15px; font-weight: 600; }
.perk-board .demo-reset { min-height: 32px; padding-inline: 10px; color: var(--muted-foreground); font-size: 12px; }
.demo-search { display: grid; grid-template-columns: minmax(0, 1fr) 44px; gap: 8px; }
.demo-search input { min-width: 0; height: 44px; border-radius: 12px; padding-inline: 12px; background: var(--card); }
.demo-search > button { width: 44px; }
.demo-filter-group { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--border); }
.demo-filter-group h3 { margin: 0 0 12px; color: var(--muted-foreground); font-size: 12px; font-weight: 500; }
.demo-filter-row { display: flex; flex-wrap: wrap; gap: 7px; }
.perk-board .demo-pill { min-height: 36px; padding-inline: 12px; border-radius: 999px; font-size: 12px; }
.demo-pill > span { font-variant-numeric: tabular-nums; opacity: .72; }
.perk-board .demo-pill[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: var(--primary-foreground); }
.demo-new-toggle { position: relative; display: inline-flex; align-items: center; gap: 10px; min-height: 44px; cursor: pointer; font-size: 13px; }
.demo-new-toggle input { position: absolute; width: 42px; height: 26px; opacity: 0; margin: 0; cursor: pointer; }
.demo-switch { display: block; width: 42px; height: 26px; padding: 3px; border: 1px solid var(--input); border-radius: 999px; background: var(--border); pointer-events: none; transition: background-color var(--motion-fast) var(--motion-ease), border-color var(--motion-fast) var(--motion-ease); }
.demo-switch::before { content: ""; display: block; width: 18px; height: 18px; border-radius: 50%; background: var(--card); transition: margin-left var(--motion-fast) var(--motion-ease); }
.demo-new-toggle input:checked + .demo-switch { background: var(--accent); border-color: var(--accent); }
.demo-new-toggle input:checked + .demo-switch::before { margin-left: 16px; }
.demo-new-toggle input:focus-visible + .demo-switch { outline: 2px solid var(--ring); outline-offset: 3px; }
.demo-results-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-left: auto; }
.demo-results-toggle { flex-shrink: 0; padding-inline: 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--card); }
.demo-results-toggle input { left: 10px; top: 9px; }
.board-hidden-note { font-size: 12px; color: var(--muted-foreground); }
.demo-sidebar-note { margin: 16px 0 0; color: var(--muted-foreground); font-size: 11px; }

.demo-content { min-width: 0; }
.demo-results-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; row-gap: 8px; margin: 0 0 16px; }
.demo-results-heading h1 { margin: 0; font-size: 20px; font-weight: 600; }
.demo-results-heading > span { color: var(--muted-foreground); font-size: 13px; }
.demo-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; align-items: start; }
.demo-deal { display: flex; flex-direction: column; min-width: 0; padding: 26px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); }
.deal-heading { display: flex; align-items: flex-start; gap: 12px; min-height: 62px; margin-bottom: 18px; }
.deal-heading h2 { flex: 1; min-width: 0; margin: 4px 0 0; font-size: 20px; line-height: 1.55; font-weight: 650; overflow-wrap: anywhere; }
.perk-board .demo-favorite { display: flex; flex-shrink: 0; flex-direction: column; gap: 2px; width: 58px; height: 58px; padding: 6px; border: 1px solid var(--border); border-radius: 12px; color: var(--muted-foreground); background: var(--card); font-size: 11px; line-height: 1.3; }
.perk-board .demo-favorite svg { width: 18px; height: 18px; }
.perk-board .demo-favorite span { white-space: nowrap; }
.perk-board .demo-favorite[aria-pressed="true"] { color: var(--accent-strong); border-color: var(--accent); background: var(--accent-soft); }
.demo-favorite[aria-pressed="true"] svg { fill: currentColor; }
.deal-summary { padding: 16px 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--muted); }
.deal-summary > span { color: var(--muted-foreground); font-size: 12px; }
.deal-summary p { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 48px; margin: 8px 0 0; line-height: 24px; color: var(--secondary-foreground); }
.deal-original { margin-top: 14px; color: var(--muted-foreground); font-size: 13px; }
.deal-original summary { width: fit-content; padding-block: 5px; }
.deal-original summary:hover { color: var(--foreground); }
.deal-original:not([open]) > :not(summary) { display: none; }
.deal-original p { margin: 10px 0; line-height: 1.8; }
.deal-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 18px 0; }
.deal-fresh { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border: 2px solid var(--accent); border-radius: 999px; background: var(--primary); color: var(--primary-foreground); font-size: 11px; font-weight: 600; line-height: 1.4; letter-spacing: .02em; }
.deal-fresh::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--primary-foreground); }
.deal-claimed-state { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted-foreground); font-size: 12px; }
.deal-actions { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; margin-top: auto; }
.perk-board .deal-actions > button { min-height: 46px; }
.demo-deal[data-claimed="true"] { background: var(--muted); }
.demo-deal[data-claimed="true"] .deal-heading h2 { color: var(--muted-foreground); }
.demo-deal[data-claimed="true"] .deal-summary { background: var(--secondary); }

.demo-empty { padding: 56px 24px; text-align: center; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); }
.demo-empty > svg { margin: 0 auto 12px; color: var(--muted-foreground); }
.demo-empty h2 { margin: 0; font-size: 18px; }
.demo-empty p { margin: 8px 0 20px; color: var(--muted-foreground); }
.demo-footer { padding: 26px 0 36px; color: var(--muted-foreground); font-size: 12px; }

.demo-dialog { position: fixed; inset: 0; width: min(540px, calc(100vw - 32px)); max-height: calc(100dvh - 48px); margin: auto; padding: 28px; overflow-y: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); color: var(--foreground); }
.demo-dialog::backdrop { background: var(--overlay); }
.dialog-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.demo-dialog h2 { margin: 18px 0; font-size: 23px; line-height: 1.55; overflow-wrap: anywhere; }
.demo-dialog p { margin: 18px 0; line-height: 1.8; }
.demo-dialog .dialog-note { padding: 14px 16px; border-radius: 12px; background: var(--muted); color: var(--muted-foreground); font-size: 13px; }
.dialog-actions { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 10px; margin-top: 24px; }

@media (max-width: 1100px) {
  .demo-layout { grid-template-columns: 244px minmax(0, 1fr); gap: 20px; }
  .demo-cards { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 760px) {
  .demo-shell { padding: 0 16px 32px; }
  .demo-header { min-height: 64px; gap: 8px; margin-bottom: 16px; }
  .demo-brand { font-size: 20px; }
  .demo-header-actions { gap: 4px; }
  .demo-header-actions > [data-slot="badge"] { display: none; }
  .perk-board .demo-header-actions > a { padding-inline: 8px; font-size: 12px; }
  .demo-layout { display: block; }
  .demo-sidebar { position: static; max-height: none; overflow: visible; padding: 0; border: 0; border-radius: 0; background: transparent; margin-bottom: 20px; }
  .demo-filter-toggle { display: flex; width: 100%; min-height: 44px; align-items: center; gap: 8px; padding: 0 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--card); color: var(--foreground); font-size: 13px; }
  .demo-filter-toggle > svg:first-child { color: var(--accent-strong); }
  .demo-filter-toggle > svg:last-child { margin-left: auto; transition: transform var(--motion-fast) var(--motion-ease); }
  .demo-filter-toggle[aria-expanded="true"] > svg:last-child { transform: rotate(180deg); }
  .demo-filter-count { display: grid; place-items: center; min-width: 20px; height: 20px; padding-inline: 5px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-strong); font-size: 11px; }
  .demo-filter-body { display: none; margin-top: 8px; padding: 16px; border: 1px solid var(--border); border-radius: 16px; background: var(--card); }
  .demo-filter-body[data-open="true"] { display: block; }
  .perk-board .demo-pill { min-height: 44px; padding-inline: 12px; font-size: 12px; }
  .demo-results-heading { margin-top: 4px; }
  .demo-results-actions { width: 100%; margin-left: 0; }
  .board-hidden-note { flex-basis: 100%; }
  .demo-cards { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .demo-deal { padding: 20px; }
  .deal-heading { min-height: 0; gap: 6px; margin-bottom: 16px; }
  .deal-heading h2 { font-size: 18px; }
  .deal-summary { padding: 14px; }
  .deal-actions { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px; }
  .perk-board .deal-actions > button { padding-inline: 10px; font-size: 12px; }
  .demo-dialog { padding: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .perk-board *, .perk-board *::before, .perk-board *::after { transition: none !important; animation: none !important; }
}

/* 正式页面共用扩展：根容器仍是 .perk-board，以下颜色只取语义 token。 */
.board-alert-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  min-width: 0;
  margin: 0 0 16px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  color: var(--muted-foreground);
  font-size: 12px;
  line-height: 1.6;
}
.board-lead-note { flex: 1 1 320px; min-width: 0; margin: 0; color: var(--muted-foreground); font-size: 12px; line-height: 1.6; overflow-wrap: anywhere; }
.board-alert {
  padding: 6px 10px;
  border: 1px solid color-mix(in srgb, var(--destructive) 35%, var(--border));
  border-radius: 10px;
  background: color-mix(in srgb, var(--destructive) 7%, var(--card));
  color: var(--destructive);
  font-size: 12px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}
.board-alert[role="alert"] { border-color: var(--destructive); background: color-mix(in srgb, var(--destructive) 12%, var(--card)); font-weight: 600; }

.board-status { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--border); }
.board-status-list { display: grid; gap: 8px; margin: 0; }
.board-status-item { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: baseline; gap: 10px; }
.board-status-item dt { min-width: 0; color: var(--muted-foreground); font-size: 12px; }
.board-status-item dd { margin: 0; color: var(--foreground); font-size: 12px; text-align: right; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }

.board-sort {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--input);
  border-radius: 12px;
  background: var(--card);
  color: var(--foreground);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.board-sort:focus-visible { outline: 2px solid var(--ring); outline-offset: 3px; }
.board-sort:disabled { cursor: not-allowed; opacity: .6; }

.board-source-results { margin-top: 14px; color: var(--muted-foreground); font-size: 12px; line-height: 1.7; }
.board-source-results > summary { cursor: pointer; }
.board-source-results > summary:hover { color: var(--foreground); }
.board-source-results:not([open]) > :not(summary) { display: none; }
.board-source-results ul { margin: 8px 0 0; padding-left: 18px; }
.board-source-results li { margin: 4px 0; overflow-wrap: anywhere; }
.demo-sidebar .board-footer-note { margin-top: 12px; }

.board-refresh {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  height: 44px;
  padding-inline: 16px;
  border: 1px solid var(--primary);
  border-radius: 12px;
  background: var(--primary);
  color: var(--primary-foreground);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  transition: background-color var(--motion-fast, 160ms) var(--motion-ease, ease-out);
}
.board-refresh:hover:not(:disabled) { background: color-mix(in srgb, var(--primary) 86%, var(--foreground)); }
.board-refresh:focus-visible { outline: 2px solid var(--ring); outline-offset: 3px; }
.board-refresh:disabled { cursor: not-allowed; opacity: .55; }

.board-results-count { color: var(--muted-foreground); font-size: 12px; font-variant-numeric: tabular-nums; }
.board-empty-note { margin: 8px 0 0; color: var(--muted-foreground); font-size: 13px; line-height: 1.7; }
.board-original-meta { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 10px 0 0; color: var(--muted-foreground); font-size: 12px; line-height: 1.7; }
.board-original-meta > * { min-width: 0; overflow-wrap: anywhere; }
.board-footer-note { color: var(--muted-foreground); font-size: 12px; line-height: 1.7; }

.board-error { display: grid; place-items: center; min-height: 100dvh; padding: 24px; background: var(--background); color: var(--foreground); font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
.board-error-card { width: min(100%, 460px); padding: 32px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); text-align: center; }
.board-error-card h1 { margin: 0 0 10px; font-size: 20px; line-height: 1.5; font-weight: 600; overflow-wrap: anywhere; }
.board-error-card p { margin: 0; color: var(--muted-foreground); font-size: 13px; line-height: 1.7; }

@media (max-width: 760px) {
  .board-alert-strip { max-width: 100%; padding: 8px 10px; gap: 6px; }
  .board-lead-note, .board-alert { flex-basis: 100%; min-width: 0; }
  .board-status-list { gap: 6px; }
  .board-status-item { grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
  .board-sort { width: 100%; }
  .board-error-card { padding: 20px; }
  .board-refresh { flex-shrink: 0; padding-inline: 12px; }
}
.board-status h3 { margin: 0 0 12px; color: var(--muted-foreground); font-size: 12px; font-weight: 500; }
.board-lead-note svg,
.board-source-results > summary svg,
.board-original-meta svg { width: 14px; height: 14px; vertical-align: -2px; flex-shrink: 0; }
.board-original-meta > span { display: inline-flex; align-items: center; gap: 4px; }
.board-alert { flex: 1 1 280px; min-width: 0; margin: 0; }
.board-footer-note { margin: 0; }
.demo-footer .board-footer-note { margin: 0 0 4px; }
.demo-footer [data-slot="button"] { min-height: 0; height: auto; padding: 0; border-radius: 0; background: transparent; color: var(--primary); }
.board-error-card .board-refresh { margin-top: 20px; }
/* 登录页：单张居中卡片，和看板共用同一套浅色变量。 */
.board-login { display: flex; flex-direction: column; gap: 12px; width: min(420px, calc(100% - 32px)); margin: 0 auto; padding: 32px 28px; position: relative; top: 12dvh; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); }
.board-login h1 { margin: 8px 0 0; font-size: 20px; font-weight: 600; }
.board-login-hint { margin: 0; color: var(--muted-foreground); }
.board-login .board-alert { flex: none; }
.board-login-form { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.board-login-form label { font-size: 13px; font-weight: 500; }
.board-login-form [data-slot="input"] { height: 44px; border-radius: 12px; background: var(--card); }
.board-login-form [data-slot="button"] { margin-top: 8px; background: var(--primary); color: var(--primary-foreground); }
@media (max-width: 760px) {
  .board-login { top: 6dvh; padding: 24px 20px; }
}
@media (max-width: 760px) {
  .board-alert-strip > .board-alert { flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .board-refresh { transition: none !important; }
}