/* 方言志 · 嵌入式页面样式 */

    
    body.dialect-body {
      height: auto;
      min-height: 100%;
      overflow: auto;
      background:
        radial-gradient(circle at 12% 0%, rgba(196, 71, 44, 0.08), transparent 32rem),
        radial-gradient(circle at 92% 18%, rgba(23, 111, 99, 0.07), transparent 28rem),
        var(--paper);
    }
    .dialect-shell {
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }
    .dialect-shell .topbar {
      position: sticky;
      top: 0;
    }
    .dialect-shell .brand,
    .dialect-shell .tab {
      text-decoration: none;
    }
    .dialect-shell .tab.is-active {
      color: var(--ink);
    }
    .dialect-shell .tab.is-active::after {
      content: "";
      position: absolute;
      right: 14px;
      bottom: 7px;
      left: 14px;
      height: 2px;
      background: var(--red);
      border-radius: 2px;
    }
    .dialect-main {
      flex: 1;
      width: min(1080px, calc(100% - 40px));
      margin: 0 auto;
      padding: 34px 0 76px;
    }
    .dialect-hero {
      display: grid;
      grid-template-columns: minmax(0, 1.35fr) minmax(230px, 0.65fr);
      gap: 36px;
      align-items: end;
      padding: 8px 0 36px;
      border-bottom: 1px solid var(--line-strong);
    }
    .dialect-hero .eyebrow {
      margin: 0 0 12px;
      color: var(--red);
      font-family: var(--sans);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.2em;
    }
    .dialect-hero h1 {
      margin: 0;
      font-family: var(--serif);
      font-size: clamp(48px, 8vw, 82px);
      font-weight: 600;
      line-height: 1.05;
      letter-spacing: 0.02em;
    }
    .dialect-hero h1 em {
      color: var(--red);
      font-style: normal;
    }
    .dialect-hero .lead {
      max-width: 620px;
      margin: 20px 0 0;
      color: var(--ink-2);
      font-size: 18px;
      line-height: 1.8;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px 18px;
      margin-top: 24px;
    }
    .hero-actions .primary-btn {
      width: auto;
      min-width: 148px;
      padding: 0 22px;
      text-decoration: none;
    }
    .text-link {
      color: var(--red-deep);
      font-size: 14px;
      text-decoration: underline;
      text-underline-offset: 4px;
    }
    .hero-note {
      position: relative;
      padding: 22px;
      overflow: hidden;
      background: linear-gradient(145deg, var(--card-strong), var(--card));
      border: 1px solid var(--line);
      border-radius: 18px;
      box-shadow: var(--shadow-soft);
      transform: rotate(1.4deg);
    }
    .hero-note::before {
      content: "";
      position: absolute;
      top: -40px;
      right: -30px;
      width: 150px;
      height: 150px;
      background: var(--red-soft);
      border-radius: 50%;
      opacity: 0.65;
    }
    .hero-note .tile-stamp {
      position: relative;
      display: grid;
      place-items: center;
      width: 56px;
      height: 56px;
      margin-bottom: 18px;
      color: #fff8ec;
      background: var(--red);
      border-radius: 12px;
      font-family: var(--hand);
      font-size: 30px;
      box-shadow: 0 5px 0 var(--red-deep);
    }
    .hero-note strong {
      position: relative;
      display: block;
      font-family: var(--serif);
      font-size: 22px;
      font-weight: 600;
    }
    .hero-note p {
      position: relative;
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.75;
    }
    .stat-strip {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1px;
      margin: 0 0 46px;
      overflow: hidden;
      background: var(--line);
      border: 1px solid var(--line);
      border-radius: 0 0 14px 14px;
    }
    .stat-strip div {
      padding: 16px 18px;
      background: rgba(251, 247, 238, 0.78);
    }
    .stat-strip strong {
      display: block;
      color: var(--red-deep);
      font-family: var(--serif);
      font-size: 24px;
      font-weight: 600;
    }
    .stat-strip span {
      color: var(--muted);
      font-size: 11px;
      letter-spacing: 0.05em;
    }
    .section {
      margin-top: 52px;
    }
    .section-heading {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 20px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--line);
    }
    .section-heading h2 {
      margin: 0;
      font-family: var(--serif);
      font-size: clamp(28px, 4vw, 38px);
      font-weight: 600;
      letter-spacing: 0.02em;
    }
    .section-heading span {
      color: var(--muted-2);
      font-size: 10px;
      letter-spacing: 0.18em;
      white-space: nowrap;
    }
    .three-points {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .point-card {
      padding: 18px;
      background: rgba(251, 247, 238, 0.72);
      border: 1px solid var(--line);
      border-radius: 12px;
    }
    .point-card .guide-no {
      display: block;
      margin-bottom: 16px;
      color: var(--red);
      font-family: var(--latin);
      font-size: 12px;
      letter-spacing: 0.12em;
      white-space: nowrap;
    }
    .point-card h3 {
      margin: 0 0 7px;
      font-family: var(--serif);
      font-size: 20px;
      font-weight: 600;
    }
    .point-card p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.75;
    }
    .dialect-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }
    .dialect-card {
      position: relative;
      padding: 20px 20px 18px;
      overflow: hidden;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 14px;
    }
    .dialect-card.is-wide {
      grid-column: span 2;
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(280px, 1.1fr);
      gap: 22px;
      align-items: start;
      background: linear-gradient(120deg, #2b2923, #211f1a);
      border-color: #211f1a;
    }
    .dialect-card .card-index {
      display: block;
      margin-bottom: 10px;
      color: var(--red);
      font-family: var(--latin);
      font-size: 10px;
      letter-spacing: 0.16em;
    }
    .dialect-card h3 {
      margin: 0;
      font-family: var(--serif);
      font-size: 28px;
      font-weight: 600;
      letter-spacing: 0.04em;
    }
    .dialect-card .region {
      margin: 4px 0 10px;
      color: var(--muted-2);
      font-size: 10px;
      letter-spacing: 0.04em;
    }
    .dialect-card p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.75;
    }
    .dialect-card.is-wide h3,
    .dialect-card.is-wide .card-index {
      color: #fff8ec;
    }
    .dialect-card.is-wide .region {
      color: rgba(255, 248, 236, 0.58);
    }
    .dialect-card.is-wide p {
      color: rgba(255, 248, 236, 0.78);
    }
    .dialect-card.is-wide .card-index {
      color: var(--gold);
    }
    .subarea-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 6px;
    }
    .subarea-grid span {
      display: block;
      padding: 8px 9px;
      color: rgba(255, 248, 236, 0.82);
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid rgba(255, 248, 236, 0.12);
      border-radius: 7px;
      font-size: 11px;
      line-height: 1.5;
    }
    .subarea-grid small {
      display: block;
      margin-top: 2px;
      color: rgba(255, 248, 236, 0.44);
      font-size: 9px;
    }
    .understanding {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 8px;
    }
    .understanding div {
      padding: 16px 14px;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 10px;
    }
    .understanding strong {
      display: block;
      margin-bottom: 5px;
      color: var(--ink-2);
      font-family: var(--serif);
      font-size: 18px;
      font-weight: 600;
    }
    .understanding span {
      color: var(--muted);
      font-size: 11px;
      line-height: 1.65;
    }
    .callout {
      margin-top: 14px;
      padding: 16px 18px;
      color: var(--ink-2);
      background: rgba(23, 111, 99, 0.07);
      border-left: 3px solid var(--jade);
      border-radius: 0 10px 10px 0;
      font-size: 13px;
      line-height: 1.8;
    }
    .callout strong { color: var(--jade); }
    .standard-note {
      display: grid;
      grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
      gap: 24px;
      align-items: start;
      padding: 24px;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 14px;
    }
    .standard-note blockquote {
      margin: 0;
      padding-left: 16px;
      color: var(--ink-2);
      border-left: 2px solid var(--red);
      font-family: var(--serif);
      font-size: 21px;
      line-height: 1.7;
    }
    .standard-note p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.85;
    }
    .boundary-note {
      padding: 18px 20px;
      color: var(--muted);
      background: var(--paper-2);
      border-radius: 12px;
      font-size: 13px;
      line-height: 1.85;
    }
    .boundary-note strong { color: var(--ink-2); }
    .resource-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 8px;
    }
    .resource-grid a {
      display: block;
      padding: 14px 15px;
      color: var(--ink-2);
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 10px;
      text-decoration: none;
      transition: border-color 0.18s ease, background 0.18s ease;
    }
    .resource-grid a:hover {
      background: var(--card-strong);
      border-color: var(--line-strong);
    }
    .resource-grid strong {
      display: block;
      font-size: 13px;
      font-weight: 600;
    }
    .resource-grid span {
      display: block;
      margin-top: 3px;
      color: var(--muted-2);
      font-size: 10px;
      line-height: 1.5;
    }
    .dialect-footer {
      padding: 22px 0 8px;
      color: var(--muted-2);
      border-top: 1px solid var(--line);
      font-size: 11px;
      line-height: 1.8;
    }
    .dialect-footer a {
      color: var(--red-deep);
      text-decoration: underline;
      text-underline-offset: 3px;
    }
    @media (max-width: 820px) {
      .dialect-hero,
      .standard-note {
        grid-template-columns: 1fr;
      }
      .dialect-hero {
        gap: 24px;
      }
      .hero-note {
        max-width: 420px;
        transform: none;
      }
      .dialect-card.is-wide {
        grid-template-columns: 1fr;
      }
      .dialect-card.is-wide {
        grid-column: span 2;
      }
      .subarea-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }
    @media (max-width: 620px) {
      .dialect-main {
        width: calc(100% - 28px);
        max-width: 1080px;
        padding-top: 24px;
      }
      .dialect-shell .brand-name {
        display: none;
      }
      .dialect-shell .topbar {
        gap: 8px;
        min-height: 58px;
        padding: 0 12px;
      }
      .dialect-shell .tab {
        height: 42px;
        padding: 0 9px;
        font-size: 12px;
      }
      .dialect-shell .tab.is-active::after {
        right: 9px;
        left: 9px;
        bottom: 6px;
      }
      .dialect-hero h1 {
        font-size: clamp(44px, 15vw, 64px);
      }
      .dialect-hero .lead {
        font-size: 16px;
      }
      .stat-strip,
      .three-points,
      .dialect-grid,
      .understanding,
      .resource-grid {
        grid-template-columns: 1fr;
      }
      .dialect-card.is-wide {
        grid-column: auto;
      }
      .subarea-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .section {
        margin-top: 40px;
      }
      .section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 4px;
      }
      .section-heading span {
        font-size: 9px;
      }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
    }
  

/* 嵌入 App 后：screen-scroll 已经负责宽度和内边距 */
#screen-dialects .dialect-main{width:100%;max-width:none;margin:0;padding:0;}
#screen-dialects .dialect-hero{padding-top:0;}


/* 官话：扩展介绍 */
.mandarin-card {
  align-items: start;
}

.mandarin-intro > p {
  margin: 0;
}

.mandarin-intro > p + p {
  margin-top: 9px;
}

.mandarin-intro > p strong {
  color: #fff8ec;
  font-weight: 600;
}

.mandarin-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin-top: 16px;
}

.mandarin-facts span {
  padding: 8px 9px;
  color: rgba(255, 248, 236, 0.68);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 248, 236, 0.1);
  border-radius: 7px;
  font-size: 10px;
  line-height: 1.55;
}

.mandarin-facts b {
  display: block;
  margin-bottom: 3px;
  color: var(--gold);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.mandarin-detail {
  grid-column: 1 / -1;
  margin-top: 7px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 248, 236, 0.13);
}

.mandarin-detail h4 {
  margin: 0 0 10px;
  color: #fff8ec;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.mandarin-detail dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 20px;
  margin: 0;
}

.mandarin-detail dl > div {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 9px;
  align-items: baseline;
}

.mandarin-detail dt {
  color: var(--gold);
  font-size: 11px;
  white-space: nowrap;
}

.mandarin-detail dd {
  margin: 0;
  color: rgba(255, 248, 236, 0.66);
  font-size: 11px;
  line-height: 1.65;
}

@media (max-width: 620px) {
  .mandarin-facts {
    grid-template-columns: 1fr;
  }

  .mandarin-detail dl {
    grid-template-columns: 1fr;
  }

  .mandarin-detail dl > div {
    grid-template-columns: 62px minmax(0, 1fr);
  }
}

/* 去掉八片小卡和事实卡后，官话卡改为单列 */
.dialect-card.is-wide.mandarin-card { grid-template-columns: 1fr; }

/* 去掉右侧速记卡和统计条后，首屏改为单列 */
#screen-dialects .dialect-hero { grid-template-columns: 1fr; }


/* 长文版方言分区介绍 */
.dialect-intro {
  padding: 4px 0 30px;
  border-bottom: 1px solid var(--line-strong);
}

.dialect-intro .eyebrow {
  margin: 0 0 10px;
  color: var(--red);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.dialect-intro h2 {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.dialect-intro > p {
  max-width: 920px;
  margin: 0;
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.95;
}

.dialect-intro > p strong {
  color: var(--red-deep);
  font-weight: 600;
}

.ten-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 18px 0 12px;
}

.ten-list a {
  padding: 6px 11px;
  color: var(--ink-2);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  text-decoration: none;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.ten-list a:hover {
  background: var(--red-soft);
  border-color: rgba(196, 71, 44, 0.24);
}

.intro-note {
  color: var(--muted-2) !important;
  font-size: 12px !important;
  line-height: 1.8 !important;
}

.dialect-doc {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 40px;
  align-items: start;
  margin-top: 36px;
}

.dialect-toc {
  position: sticky;
  top: 18px;
  padding-top: 8px;
  border-top: 1px solid var(--line-strong);
}

.toc-title {
  margin: 0 0 8px;
  color: var(--muted-2);
  font-size: 9px;
  letter-spacing: 0.16em;
}

.dialect-toc a {
  display: block;
  padding: 7px 0;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.5;
  text-decoration: none;
}

.dialect-toc a:hover {
  color: var(--red-deep);
}

.dialect-article {
  min-width: 0;
}

.dialect-entry {
  padding: 0 0 36px;
  margin: 0 0 36px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 84px;
}

.dialect-entry:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.entry-head {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 18px;
}

.entry-no {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--red);
  border: 1px solid rgba(196, 71, 44, 0.35);
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 16px;
}

.entry-kicker {
  margin: 1px 0 2px;
  color: var(--red);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.entry-head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.03em;
}

.entry-region {
  margin: 6px 0 0;
  color: var(--muted-2);
  font-size: 11px;
  line-height: 1.65;
}

.entry-body p {
  margin: 0 0 14px;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.95;
}

.entry-body p:last-child {
  margin-bottom: 0;
}

.entry-body strong {
  color: var(--red-deep);
  font-weight: 600;
}

.subarea-list {
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

.subarea-item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.subarea-no {
  padding-top: 4px;
  color: var(--red);
  font-family: var(--latin);
  font-size: 12px;
}

.subarea-item h3 {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
}

.subarea-item p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

@media (max-width: 820px) {
  .dialect-doc {
    grid-template-columns: 1fr;
    gap: 18px;
    margin-top: 28px;
  }

  .dialect-toc {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 2px 12px;
    padding: 9px 0 14px;
  }

  .toc-title {
    width: 100%;
    margin-bottom: 3px;
  }

  .dialect-toc a {
    padding: 2px 0;
    border: 0;
    font-size: 11px;
  }

  .entry-head {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 11px;
  }

  .entry-no {
    width: 33px;
    height: 33px;
    font-size: 14px;
  }

  .entry-body p {
    font-size: 14.5px;
    line-height: 1.9;
  }

  .subarea-item {
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 8px;
  }
}


/* 精简版分区导览 */
.dialect-index {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  margin: 22px 0 12px;
}

.dialect-index a {
  display: block;
  padding: 11px 12px;
  color: var(--ink-2);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 9px;
  text-decoration: none;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.dialect-index a:hover {
  background: var(--red-soft);
  border-color: rgba(196, 71, 44, 0.22);
}

.dialect-index span {
  display: block;
  margin-bottom: 8px;
  color: var(--red);
  font-family: var(--latin);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.dialect-index strong {
  display: block;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
}

.dialect-index small {
  display: block;
  margin-top: 3px;
  color: var(--muted-2);
  font-size: 10px;
  line-height: 1.45;
}

.dialect-article {
  margin-top: 36px;
}

.entry-summary {
  max-width: 900px;
  margin: 0 0 18px;
  color: var(--ink-2);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.8;
}

.fact-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0 0 20px;
}

.fact-item {
  padding: 11px 13px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 9px;
}

.fact-item b {
  display: block;
  margin-bottom: 4px;
  color: var(--red);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.fact-item span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.subarea-table {
  margin-top: 20px;
  border-top: 1px solid var(--line-strong);
}

.subarea-row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1.25fr) minmax(0, 1.1fr);
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
}

.subarea-row > span {
  color: var(--muted);
}

.subarea-row strong {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 600;
}

.subarea-head {
  padding: 6px 0;
  color: var(--muted-2);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.subarea-head span {
  color: var(--muted-2);
}

@media (max-width: 820px) {
  .dialect-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .fact-row {
    grid-template-columns: 1fr;
  }

  .fact-item {
    padding: 10px 12px;
  }

  .entry-summary {
    font-size: 16.5px;
  }

  .subarea-head {
    display: none;
  }

  .subarea-row {
    grid-template-columns: 1fr;
    gap: 3px;
    padding: 12px 0;
  }

  .subarea-row strong {
    font-size: 15px;
  }

  .subarea-row > span:last-child {
    color: var(--ink-2);
  }
}


/* 分区块 + 常识卡 */
.section-lede {
  max-width: 900px;
  margin: 0 0 18px;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.9;
}

.common-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.common-card {
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 11px;
}

.common-no {
  display: block;
  margin-bottom: 12px;
  color: var(--red);
  font-family: var(--latin);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.common-card h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
}

.common-card p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.8;
}

.difference-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 10px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.difference-strip div {
  padding: 12px 14px;
  background: rgba(251, 247, 238, 0.8);
}

.difference-strip b {
  display: block;
  margin-bottom: 3px;
  color: var(--red-deep);
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
}

.difference-strip span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.65;
}

.understanding-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
  margin-top: 10px;
}

.understanding-grid div {
  padding: 12px 13px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 9px;
}

.understanding-grid strong {
  display: block;
  margin-bottom: 3px;
  color: var(--ink-2);
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
}

.understanding-grid span {
  color: var(--muted);
  font-size: 10px;
  line-height: 1.6;
}

.dialect-blocks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.dialect-block {
  padding: 17px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.dialect-block.is-wide {
  grid-column: 1 / -1;
  background: linear-gradient(120deg, #2b2923, #211f1a);
  border-color: #211f1a;
}

.block-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}

.block-no {
  flex: 0 0 auto;
  padding-top: 4px;
  color: var(--red);
  font-family: var(--latin);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.block-head h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
  line-height: 1.2;
}

.block-head p {
  margin: 3px 0 0;
  color: var(--muted-2);
  font-size: 10px;
  line-height: 1.55;
}

.block-summary {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.8;
}

.block-tags,
.block-subarea {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 12px;
}

.block-tags span,
.block-subarea span {
  padding: 4px 7px;
  color: var(--ink-2);
  background: rgba(43, 38, 29, 0.04);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 10px;
  line-height: 1.3;
}

.block-note {
  margin: 12px 0 0;
  color: var(--muted-2);
  font-size: 10px;
  line-height: 1.7;
}

.dialect-block.is-wide .block-no {
  color: var(--gold);
}

.dialect-block.is-wide .block-head h3 {
  color: #fff8ec;
}

.dialect-block.is-wide .block-head p,
.dialect-block.is-wide .block-summary,
.dialect-block.is-wide .block-note {
  color: rgba(255, 248, 236, 0.68);
}

.dialect-block.is-wide .block-subarea span {
  color: rgba(255, 248, 236, 0.78);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 248, 236, 0.12);
}

@media (max-width: 1000px) {
  .dialect-blocks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .understanding-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .common-grid,
  .difference-strip,
  .understanding-grid,
  .dialect-blocks {
    grid-template-columns: 1fr;
  }

  .dialect-block.is-wide {
    grid-column: auto;
  }

  .common-card {
    padding: 14px;
  }

  .dialect-block {
    padding: 15px;
  }
}

/* 官话八区子块 */
.mandarin-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:14px;}
.mandarin-subblock{display:grid;grid-template-columns:20px minmax(0,1fr);gap:8px;padding:12px;background:rgba(255,255,255,.055);border:1px solid rgba(255,248,236,.11);border-radius:9px;}
.subblock-no{color:var(--gold);font-family:var(--latin);font-size:10px;padding-top:2px;}
.mandarin-subblock h4{margin:0 0 5px;color:#fff8ec;font-family:var(--serif);font-size:17px;font-weight:600;}
.subblock-region,.subblock-feature{margin:0;color:rgba(255,248,236,.62);font-size:10.5px;line-height:1.65;}
.subblock-region b{color:var(--gold);font-weight:500;margin-right:3px;}
.subblock-feature{margin-top:4px;color:rgba(255,248,236,.78);}
@media(max-width:720px){.mandarin-grid{grid-template-columns:1fr;}}

/* 官话大字右侧的片区泡泡 */
.subblock-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;flex-wrap:wrap;}
.subblock-title-row h4{margin:0;}
.subblock-chips{display:flex;flex:1 1 auto;flex-wrap:wrap;justify-content:flex-end;gap:3px;min-width:0;padding-top:1px;}
.subblock-chips span{padding:2px 5px;color:rgba(255,248,236,.72);background:rgba(255,255,255,.045);border:1px solid rgba(255,248,236,.1);border-radius:999px;font-size:8.5px;line-height:1.4;white-space:nowrap;}
@media(max-width:720px){.subblock-chips{justify-content:flex-start;}}

/* 为什么词不一样 */
.reason-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
.reason-card{padding:15px;background:var(--card);border:1px solid var(--line);border-radius:11px;}
.reason-no{display:block;margin-bottom:10px;color:var(--red);font-family:var(--latin);font-size:9px;letter-spacing:.1em;}
.reason-card h3{margin:0 0 5px;font-family:var(--serif);font-size:18px;font-weight:600;}
.reason-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.75;}
.reason-example{margin-top:10px;padding-top:8px;border-top:1px solid var(--line);color:var(--red-deep);font-family:var(--serif);font-size:11px;line-height:1.65;}
.vocab-example{margin-top:14px;overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:11px;}
.vocab-example h3{margin:0;padding:12px 15px;color:var(--ink);font-family:var(--serif);font-size:18px;font-weight:600;border-bottom:1px solid var(--line);}
.vocab-row{display:grid;grid-template-columns:64px minmax(0,1fr);gap:12px;padding:9px 15px;border-bottom:1px solid var(--line);font-size:12px;line-height:1.65;}
.vocab-row:last-child{border-bottom:0;}
.vocab-row b{color:var(--red-deep);font-family:var(--serif);font-weight:600;}
.vocab-row span{color:var(--muted);}
.vocab-summary{margin:16px 0 0;padding:14px 17px;color:var(--ink-2);background:rgba(196,71,44,.06);border-left:3px solid var(--red);font-family:var(--serif);font-size:16px;line-height:1.8;}
.vocab-note{margin:10px 0 0;color:var(--muted-2);font-size:11.5px;line-height:1.8;}
@media(max-width:820px){.reason-grid{grid-template-columns:1fr;}}
@media(max-width:420px){.vocab-row{grid-template-columns:1fr;gap:2px;}}

.vocab-source{margin:10px 0 0;color:var(--muted-2);font-size:10.5px;line-height:1.7;}