:root {
  --bg: #e8f3f3;
  --panel: #ffffff;
  --panel-2: #f4f8f8;
  --ink: #20242a;
  --ink-2: #5d6673;
  --ink-3: #646b68; /* S3(V1.12) 对比度修正：原 #87908d 对最暗背景 #dfecec 仅 2.71:1 不达 WCAG AA；
     等比加深（色相不变）后 白5.46/淡青底4.82/工具条4.51 全 ≥4.5:1，脚本复测见 logs */
  --line: #dde8e8;
  --accent: #8f1d22;
  --accent-2: #f7e8e8;
  --green: #316b54;
  --shadow: 0 8px 24px rgba(20, 60, 60, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
}

button, input, textarea { font: inherit; }

.sticky-head {
  position: sticky;
  top: 0;
  z-index: 50;
  /* S3(V1.12) backdrop-filter 降级：默认纯色白底（老浏览器/低端设备零异常），
     支持毛玻璃的浏览器由下方 @supports 增强为半透明+blur，观感不变 */
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

@supports ((backdrop-filter: blur(10px)) or (-webkit-backdrop-filter: blur(10px))) {
  .sticky-head {
    background: rgba(255, 255, 255, 0.97);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }
}

.utility-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 3px 28px;
  background: #dfecec;
  border-bottom: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 12px;
}

.util-tagline { margin: 0; }

.util-links {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.util-link {
  border: 0;
  background: none;
  padding: 0;
  color: var(--ink-2);
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}

.util-link:hover { color: var(--accent); text-decoration: underline; }

.topbar {
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 64px;
  padding: 10px 28px 8px;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 180px;
}

.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.03em;
}

.brand-name {
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.25;
}

.brand-sub {
  color: var(--ink-3);
  font-size: 12px;
  line-height: 1.25;
}

h1 {
  margin: 0;
  font-size: 20px;
  line-height: 1.3;
  font-weight: 650;
  letter-spacing: 0.02em;
}

h2 {
  margin: 0;
  font-size: 17px;
  line-height: 1.4;
  font-weight: 650;
}

h3 {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.5;
}

/* S4(V1.13) 语义层级修正：首页页签卡片标题 h3→h2（消除 h1 金匾→卡片标题的跳级）；
   本规则让卡片标题视觉与原 h3 完全一致（15px/700/1.5/下距8px），覆盖全局 h2 的 17px/650/1.4 */
#tab-home .notice-card h2 {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.5;
  font-weight: 700;
}

p { margin: 0 0 10px; }

.top-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.trust-line {
  margin-left: auto;
  color: var(--ink-3);
  font-size: 12px;
}

.counter-pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 1px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--ink-2);
  font-size: 12px;
  white-space: nowrap;
}

.tabbar {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  overflow-x: auto;
  flex: 1;
}

.tab-btn,
.filter-btn {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink-2);
  border-radius: 7px;
  padding: 5px 10px;
  cursor: pointer;
  white-space: nowrap;
  font-size: 13px;
}

.tab-btn.active,
.filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-2);
  font-weight: 650;
}

.header-cta {
  border-color: var(--accent);
  color: var(--accent);
  background: #fff;
  font-weight: 650;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  padding: 0 28px 9px;
  color: var(--ink-3);
  font-size: 12px;
}

.layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 18px;
  max-width: 1440px;
  margin: 0 auto;
  padding: 18px 28px 32px;
}

.sidebar {
  position: sticky;
  top: 140px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.side-card,
.notice-card,
.cafe-form {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.side-card { padding: 13px; }

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.stats-list {
  margin: 0;
  display: grid;
  gap: 8px;
}

.stats-list div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.stats-list dt { color: var(--ink-3); }
.stats-list dd { margin: 0; font-weight: 650; }
.side-note, .section-note, .muted { color: var(--ink-3); font-size: 12px; }

.main { min-width: 0; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-end;
  margin-bottom: 12px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.market-list-wrap {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.market-head,
.market-row {
  display: grid;
  grid-template-columns: 46px 1.7fr 1.05fr 0.85fr 0.7fr 1fr 62px 0.8fr;
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
}

.market-head {
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.market-row { border-bottom: 1px solid var(--line); }
.market-row:last-child { border-bottom: 0; }
.market-row:hover { background: rgba(143, 29, 34, 0.03); }

.index-cell {
  width: 52px;
  color: var(--ink-2);
  font-weight: 650;
}

.market-name {
  color: var(--accent);
  font-weight: 700;
}

.market-name-link {
  text-decoration: none;
}

.market-name-link:hover {
  text-decoration: underline;
}

.market-bg {
  display: inline-flex;
  margin-top: 4px;
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--accent-2);
  color: var(--accent);
  font-size: 12px;
}

.risk-note {
  margin-top: 7px;
  color: var(--ink-3);
  font-size: 12px;
  line-height: 1.6;
}

.discount {
  color: var(--green);
  font-weight: 750;
  white-space: nowrap;
}

.price-note {
  margin-top: 4px;
  color: var(--accent);
  font-size: 12px;
  line-height: 1.5;
}

.action-link,
.qcc-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 650;
}

.action-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 3px 10px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: #fff;
  white-space: nowrap;
}

.action-link:hover,
.qcc-link:hover {
  background: var(--accent-2);
}

.code-text {
  margin-top: 4px;
  color: var(--ink-2);
  font-size: 12px;
}

.qr-box {
  width: 58px;
  height: 58px;
  border: 1px solid #222;
  background:
    linear-gradient(90deg, #111 8px, transparent 8px) 0 0 / 16px 16px,
    linear-gradient(#111 8px, transparent 8px) 0 0 / 16px 16px,
    #fff;
  cursor: pointer;
}

.empty-cell {
  padding: 24px;
  text-align: center;
  color: var(--ink-3);
}

/* ======== V1.06 首页叙事区 ======== */
.hero {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 34px 28px 26px;
  margin-bottom: 14px;
  text-align: center;
}

.hero-plaque {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 26px;
  font-weight: 750;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.hero-hammer {
  display: inline-block;
  margin: 0 auto 14px;
  padding: 12px 22px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
}

.hammer-line {
  margin: 0;
  font-size: 20px;
  font-weight: 750;
  letter-spacing: 0.04em;
}

.hammer-sub {
  margin: 4px 0 0;
  font-size: 14px;
  opacity: 0.92;
}

.hero-sub {
  max-width: 640px;
  margin: 0 auto 18px;
  color: var(--ink-2);
  font-size: 14px;
}

.cta-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.cta-btn {
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 14px;
}

.hero .primary-btn { grid-column: auto; }

.ghost-btn {
  border: 1px solid var(--accent);
  background: #fff;
  color: var(--accent);
  cursor: pointer;
  font-weight: 650;
}

.ghost-btn:hover { background: var(--accent-2); }

.brand-sign {
  margin: 18px 0 0;
  text-align: center;
  color: var(--ink-3);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 8px;
}

.chip {
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--ink-2);
  font-size: 12px;
}

.notice-card { padding: 16px; margin-bottom: 12px; }
.partner-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.cafe-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 16px;
}

.cafe-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--ink-2);
}

.cafe-form .full { grid-column: 1 / -1; }

input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 10px;
  background: #fff;
  color: var(--ink);
}

textarea { resize: vertical; }

.primary-btn {
  grid-column: 1 / -1;
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 650;
}

.feedback {
  margin-top: 12px;
  padding: 12px 14px;
  border: 1px solid #cde7d4;
  background: #f2fbf4;
  color: #24543a;
  border-radius: 10px;
  white-space: pre-wrap;
}

.feedback-error {
  border: 1px solid #eccfcf;
  background: #fdf3f3;
  color: #8f1d22;
}

.req {
  color: var(--accent);
  font-weight: 700;
}

.crumb-link {
  border: 0;
  background: none;
  padding: 0;
  color: var(--accent);
  font-size: 12px;
  cursor: pointer;
}

.crumb-link:hover { text-decoration: underline; }

.contact-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 650;
}

.contact-link:hover { text-decoration: underline; }

.story-card h3 { color: var(--accent); }

.footer {
  border-top: 1px solid var(--line);
  padding: 22px 28px 18px;
  color: var(--ink-2);
  background: var(--panel);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.8fr 1.6fr;
  gap: 28px;
  max-width: 1440px;
  margin: 0 auto;
}

.footer h4 {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.footer p { margin: 0 0 6px; }

.footer-nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.footer-nav-btn {
  border: 0;
  background: none;
  padding: 0;
  color: var(--ink-2);
  cursor: pointer;
}

.footer-nav-btn:hover { color: var(--accent); text-decoration: underline; }

.footer-note { color: var(--ink-3); font-size: 12px; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1440px;
  margin: 18px auto 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 12px;
}

@media (max-width: 1080px) {
  .topbar { flex-wrap: wrap; }
  .tabbar { order: 3; width: 100%; justify-content: flex-start; }
  .top-actions { margin-left: auto; }
  .trust-line { margin-left: 0; }
  .utility-bar { flex-wrap: wrap; }
}

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .filter-group { flex-direction: row; flex-wrap: wrap; }
  .partner-grid, .cafe-form { grid-template-columns: 1fr; }
  .breadcrumb { flex-wrap: wrap; }
  .footer-grid { grid-template-columns: 1fr; gap: 18px; }
  .footer-nav { flex-direction: row; flex-wrap: wrap; gap: 14px; }
  .market-head { display: none; }
  .market-row { grid-template-columns: 1fr; gap: 6px; }
}

/* ============ S3 · V1.12 手机级断点（768px，375px 复验通过） ============ */
@media (max-width: 768px) {
  /* 水平留白 28px→14px，窄屏把宽度还给内容 */
  .utility-bar { padding: 4px 14px; gap: 6px; justify-content: center; text-align: center; }
  .topbar { padding: 8px 14px 6px; gap: 10px; min-height: 56px; }
  .brand-lockup { min-width: 0; }
  .breadcrumb { padding: 0 14px 8px; gap: 6px; }
  .layout { padding: 14px 14px 28px; gap: 14px; }
  .notice-card, .cafe-form, .side-card { padding: 14px; }
  .hero { padding: 24px 16px 20px; }
  .hero-plaque { font-size: 21px; letter-spacing: 0.04em; }
  .hero-hammer { padding: 10px 14px; }
  .hammer-line { font-size: 17px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 6px; }
  .cta-row { gap: 8px; }
  .cta-btn { flex: 1 1 100%; }
  .footer { padding: 20px 14px 16px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
  .market-head, .market-row { padding: 10px; }
  /* 集市列表横向溢出兜底：极窄屏允许容器内横向滚动，不撑破页面 */
  .market-list-wrap { overflow-x: auto; }
}

/* ============ V1.08 可访问性：键盘焦点可见 ============ */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
.footer-nav-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ============ S2 · V1.11 小镇人气卡（showTrafficBadge=true 才显示；
   基础规则不写 display，保证 hidden 属性生效——GUI 抽屉 bug 同款教训） ============ */
.traffic-badge {
  padding: 10px 14px;
  margin-bottom: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid #0e7c7b;
  border-radius: 10px;
  box-shadow: var(--shadow);
  color: var(--ink-2);
  font-size: 13px;
}

.traffic-badge strong { color: var(--ink); font-weight: 650; }

.traffic-badge .badge-note {
  margin-left: 10px;
  color: var(--ink-3);
  font-size: 12px;
}

/* ============ S3 · V1.12 A11y 与降级提示 ============ */
/* Skip Link：视觉隐藏，键盘 Tab 首个焦点时滑入左上角（读屏/键盘用户跳过顶部十余个按钮直达主内容） */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 9px 18px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  border-radius: 0 0 10px 0;
}

.skip-link:focus {
  left: 0;
}

/* 表单字段级提示（aria-describedby 关联目标，读屏播报，视觉弱化） */
.field-hint {
  color: var(--ink-3);
  font-size: 12px;
}

/* noscript 提示条（禁用 JS 时唯一可见的动态告知） */
.noscript-note {
  padding: 10px 16px;
  background: var(--accent-2);
  color: var(--accent);
  font-size: 13px;
  font-weight: 650;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

/* 程序化焦点目标（main/tab-panel tabindex=-1）：不显示焦点环，键盘 Tab 走的交互元素才显示 */
#main:focus,
.tab-panel:focus {
  outline: none;
}