/* 桌面和手机共用完整正文；只改变排版，不依赖设备识别或客户端路由。 */
:root {
  color-scheme: light;
  --background: #fafafa;
  --surface: #fff;
  --ink: #222;
  --muted: #666;
  --line: #e5e5e5;
  --accent: #b93d24;
  --tint: #f8eee9;
  font-family:
    -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--background);
  font-synthesis: none;
  scroll-behavior: smooth;
  scroll-padding-top: 28px;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--accent);
  text-underline-offset: 4px;
  overflow-wrap: anywhere;
}
button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}
button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}
button:disabled {
  cursor: wait;
}
button:hover {
  background: var(--tint);
}
[hidden] {
  display: none !important;
}
main:focus {
  outline: none;
}
a:hover {
  color: #8b2d1b;
}
.skip-link {
  position: fixed;
  top: 10px;
  left: 12px;
  z-index: 5;
  padding: 12px;
  background: white;
  transform: translateY(-160%);
}
.skip-link:focus {
  transform: none;
}
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.header-inner {
  max-width: 1200px;
  margin: auto;
  min-height: 88px;
  padding: 16px 40px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand {
  font-size: 25px;
  font-weight: 650;
  letter-spacing: -1px;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 44px;
}
.brand span {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 2px;
  color: var(--muted);
  border-left: 1px solid var(--line);
  padding-left: 14px;
}
.desktop-navigation {
  margin-left: auto;
  display: flex;
  gap: 28px;
}
.desktop-navigation a {
  display: flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
}
.desktop-navigation a[aria-current] {
  color: var(--accent);
}
.language-switch {
  font-size: 13px;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--ink);
}
.document-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 40px 0;
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 72px;
  align-items: start;
}
.sidebar {
  position: sticky;
  top: 28px;
  max-height: calc(100vh - 56px);
  overflow: auto;
  padding-right: 16px;
  padding-bottom: 16px;
}
.eyebrow {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin: 0 0 18px;
  font-weight: 600;
}
.toc-heading {
  font-size: 15px;
  font-weight: 600;
  margin: 32px 0 12px;
}
.desktop-toc,
.mobile-toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.desktop-toc a,
.mobile-toc-list a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  min-height: 44px;
  padding: 10px 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
  text-decoration: none;
}
.desktop-toc a span,
.mobile-toc-list a span {
  flex: none;
  min-width: 2ch;
  white-space: nowrap;
  color: #8b736b;
  font-variant-numeric: tabular-nums;
  font-size: 11px;
}
.desktop-toc a:hover,
.desktop-toc a[aria-current] {
  color: var(--accent);
}
.desktop-toc a[aria-current] {
  font-weight: 600;
}
.sidebar-contact {
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding-top: 24px;
  display: grid;
  gap: 5px;
  font-size: 13px;
  color: var(--muted);
}
.sidebar-contact a {
  display: flex;
  gap: 30px;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
}
main {
  min-width: 0;
  max-width: 760px;
}
.document-header {
  margin-bottom: 32px;
}
.document-header h1 {
  font-size: clamp(32px, 3.4vw, 48px);
  line-height: 1.22;
  letter-spacing: -1.6px;
  font-weight: 650;
  margin: 0 0 20px;
}
.document-description {
  font-size: 17px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0 0 24px;
}
.document-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
}
.document-meta time {
  color: var(--ink);
  margin-left: 8px;
}
.reading-summary {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px 28px;
  margin-bottom: 32px;
}
.summary-heading {
  display: flex;
  align-items: baseline;
  gap: 16px;
  justify-content: space-between;
}
.summary-heading h2 {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}
.summary-heading > span {
  color: var(--muted);
  font-size: 11px;
  white-space: nowrap;
}
.reading-summary ul {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}
.reading-summary li {
  display: flex;
  gap: 16px;
  margin: 20px 0;
}
.summary-number {
  color: var(--accent);
  font-size: 11px;
  line-height: 2;
  font-variant-numeric: tabular-nums;
}
.reading-summary strong {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.7;
}
.reading-summary li p {
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
  margin: 3px 0 0;
}
.summary-note {
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin: 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}
.reading-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 24px 0 0;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
.reading-tools > span {
  margin-right: auto;
}
.reading-tools button,
.contact-actions button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 14px;
  background: var(--surface);
}
.reading-tools button[aria-pressed="true"] {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--tint);
}
.document-body {
  font-size: 16px;
  line-height: 1.9;
  overflow-wrap: anywhere;
}
.document-section {
  margin-top: 42px;
  scroll-margin-top: 28px;
}
.document-section h2 {
  font-size: 21px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.3px;
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 20px;
}
.section-number {
  font-size: 12px;
  letter-spacing: 0;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  flex: none;
}
.document-section p {
  margin: 14px 0;
  white-space: pre-line;
}
.document-section p:last-child {
  margin-bottom: 0;
}
.large-text .document-body {
  font-size: 20px;
}
.large-text .document-section h2 {
  font-size: 24px;
}
.contact-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
  font-size: 13px;
}
.email-button {
  min-height: 44px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 11px 18px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.email-button:hover {
  color: #fff;
  background: #98321e;
}
.contact-actions [role="status"] {
  width: 100%;
  font-size: 12px;
  color: var(--muted);
}
.healing-example {
  margin: 24px 0;
}
.healing-example > div {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.healing-example img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}
.healing-example span,
.healing-example figcaption {
  font-size: 12px;
  color: var(--muted);
}
.healing-example figcaption {
  margin-top: 12px;
}
.document-footer {
  border-top: 1px solid var(--line);
  margin-top: 56px;
  padding: 28px 0 40px;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.document-footer p {
  margin: 0;
}
.document-footer > div {
  display: flex;
  gap: 24px;
}
.document-footer a {
  min-height: 44px;
  display: flex;
  align-items: center;
  text-decoration: none;
}
.mobile-toc,
.mobile-navigation {
  display: none;
}
/* 小屏不复制原生返回栏；底部文档入口给正文预留空间，避免遮住最后一段。 */
@media (max-width: 900px) {
  .header-inner {
    padding: 12px 24px;
    min-height: 72px;
  }
  .brand span {
    display: none;
  }
  .desktop-navigation {
    gap: 18px;
  }
  .document-layout {
    padding: 36px 24px 0;
    gap: 36px;
    grid-template-columns: 180px minmax(0, 1fr);
  }
  .document-header h1 {
    font-size: 36px;
  }
  .reading-summary {
    padding: 22px;
  }
  .sidebar {
    padding-right: 0;
  }
}
@media (max-width: 700px) {
  .header-inner {
    padding: 10px 20px;
    min-height: 64px;
    justify-content: space-between;
    gap: 12px;
  }
  .brand {
    font-size: 23px;
  }
  .brand span {
    display: block;
    font-size: 11px;
    letter-spacing: 1px;
    padding-left: 10px;
  }
  .brand {
    gap: 10px;
  }
  .language-switch {
    font-size: 12px;
  }
  .desktop-navigation,
  .sidebar {
    display: none;
  }
  .document-layout {
    display: block;
    padding: 28px 20px 80px;
  }
  .document-header {
    margin-bottom: 24px;
  }
  .document-header .eyebrow {
    font-size: 11px;
    margin-bottom: 16px;
  }
  .document-header h1 {
    font-size: 34px;
    letter-spacing: -1px;
    margin-bottom: 14px;
  }
  .document-description {
    font-size: 15px;
    margin-bottom: 18px;
  }
  .document-meta {
    font-size: 11px;
    gap: 4px 16px;
  }
  .reading-summary {
    padding: 20px;
    border-radius: 14px;
    margin-bottom: 20px;
  }
  .reading-summary li {
    gap: 12px;
    margin: 16px 0;
  }
  .summary-heading h2 {
    font-size: 15px;
  }
  .reading-summary ul {
    margin: 16px 0;
  }
  .mobile-toc {
    display: block;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--surface);
    margin-bottom: 22px;
  }
  .mobile-toc summary {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 52px;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
  }
  .mobile-toc summary::-webkit-details-marker {
    display: none;
  }
  .mobile-toc summary span {
    margin-left: auto;
    color: var(--muted);
    font-size: 11px;
    font-weight: 400;
  }
  .mobile-toc summary:after {
    content: "+";
    font-size: 20px;
    color: var(--accent);
    font-weight: 400;
  }
  .mobile-toc[open] summary:after {
    content: "−";
  }
  .mobile-toc-list {
    padding: 8px 16px 14px;
    border-top: 1px solid var(--line);
  }
  .mobile-toc-list a {
    font-size: 14px;
  }
  .document-section {
    margin-top: 34px;
  }
  .document-section h2 {
    font-size: 20px;
    gap: 12px;
    margin-bottom: 18px;
  }
  .document-body {
    font-size: 16px;
    line-height: 1.9;
  }
  .reading-tools {
    margin-top: 0;
    padding-bottom: 16px;
  }
  .print-button {
    display: none;
  }
  .document-footer {
    margin-top: 40px;
    padding: 24px 0;
  }
  .mobile-navigation {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    background: #fff;
    border-top: 1px solid var(--line);
    padding: 6px 12px max(6px, env(safe-area-inset-bottom));
    box-shadow: 0 -3px 18px #22222204;
  }
  .mobile-navigation a {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 48px;
    padding: 6px;
    font-size: 12px;
    color: var(--muted);
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
  }
  .mobile-navigation a[aria-current] {
    color: var(--accent);
    background: var(--tint);
    font-weight: 600;
  }
  .document-layout {
    padding-bottom: calc(80px + env(safe-area-inset-bottom));
  }
}
@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }
}
/* 打印不保留目录、工具栏和底部浮层；全部条款始终存在于静态正文。 */
@media print {
  body {
    background: white;
    color: #000;
  }
  .site-header,
  .sidebar,
  .mobile-toc,
  .mobile-navigation,
  .reading-tools,
  .contact-actions,
  .skip-link,
  .document-footer {
    display: none !important;
  }
  .document-layout {
    display: block;
    padding: 0;
    max-width: none;
  }
  main {
    max-width: none;
  }
  .document-body {
    font-size: 11pt;
    line-height: 1.6;
  }
  .document-section h2 {
    break-after: avoid;
  }
  .document-section {
    margin-top: 24px;
  }
  .reading-summary {
    break-inside: avoid;
  }
  .document-header h1 {
    font-size: 26pt;
  }
  a {
    color: #000;
  }
  .document-section p {
    orphans: 3;
    widows: 3;
  }
}

/* 操作步骤保留顺序语义，长文字与普通正文使用相同换行规则。 */
.instruction-steps {
  padding-left: 1.4em;
}
.instruction-steps li {
  padding-left: 0.4em;
  margin: 12px 0;
}
.instruction-steps li::marker {
  color: var(--accent);
}

/* 法律正文采用连续条款和可引用编号，支持页保留操作说明版式。 */
.formal-document .document-header {
  padding-bottom: 28px;
  border-bottom: 2px solid var(--ink);
}
.formal-document .document-header h1 {
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.4;
  letter-spacing: 0;
}
.formal-document .document-description {
  font-size: 15px;
}
.legal-notice {
  border-left: 3px solid #8b736b;
  padding: 2px 0 2px 20px;
  margin: 0 0 32px;
  font-size: 14px;
  line-height: 1.85;
}
.legal-notice h2 {
  margin: 0 0 10px;
  font-size: 16px;
}
.legal-notice p {
  margin: 10px 0;
}
.legal-notice strong {
  font-weight: 600;
}
.formal-document .document-section h2 {
  font-size: 20px;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.formal-document .section-number {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
}
.legal-clause {
  display: grid;
  grid-template-columns: 2.9em minmax(0, 1fr);
  gap: 0.6em;
}
.clause-number {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-size: 0.875em;
  padding-top: 0.15em;
}
.large-text .legal-notice {
  font-size: 18px;
}
@media (max-width: 700px) {
  .formal-document .document-header {
    padding-bottom: 22px;
  }
  .formal-document .document-section h2 {
    display: block;
    font-size: 19px;
    line-height: 1.7;
  }
  .formal-document .section-number {
    margin-right: 10px;
  }
  .legal-clause {
    grid-template-columns: 2.4em minmax(0, 1fr);
    gap: 0.4em;
  }
  .legal-notice {
    padding-left: 16px;
  }
}
@media print {
  .legal-notice {
    font-size: 10pt;
  }
  .formal-document .document-header h1 {
    font-size: 24pt;
  }
  .formal-document .document-section h2 {
    font-size: 13pt;
  }
  .legal-clause {
    display: block;
  }
  .clause-number {
    margin-right: 1em;
  }
}