@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600;700&display=swap');

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  
  hyphens: auto;
  -webkit-hyphens: auto;
  -ms-hyphens: auto;
  hyphenate-limit-chars: 6 3 3;
  -webkit-hyphenate-limit-before: 3;
  -webkit-hyphenate-limit-after: 3;
}

.no-hyphens,
.no-hyphens * {
  hyphens: none !important;
  -webkit-hyphens: none !important;
  -ms-hyphens: none !important;
}

body {
  font-family: "Fira Code", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue",
    Helvetica, Arial, sans-serif;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "liga" 1, "calt" 1, "kern" 1;
}

img { max-width: 100%; height: auto; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-hover); }

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 9999;
  padding: 10px 18px;
  background: var(--primary);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

:focus:not(:focus-visible) {
  outline: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (prefers-contrast: more) {
  :root, [data-theme="light"] {
    --border: #999;
    --text-muted: #444;
  }
  [data-theme="dark"] {
    --border: #888;
    --text-muted: #ccc;
  }
}

:root,
[data-theme="light"] {
  
  --bg: #f5f3ee;
  --surface: #ffffff;
  --surface-alt: #f0ede5;
  --surface-hover: #ebe7dc;

  
  --border: #e2ddd2;
  --border-light: #ece8de;

  
  --text: #2d3436;
  --text-muted: #6b7280;
  --text-faint: #9ca3af;

  
  --primary: #5b7b8c;
  --primary-hover: #466372;
  --primary-light: #e4ebef;
  --primary-bg: rgba(91, 123, 140, 0.08);

  
  --secondary: #7a9a7e;
  --secondary-hover: #638568;
  --secondary-light: #e6ede7;

  
  --accent: #b88c6a;
  --accent-hover: #a07656;
  --accent-light: #f3ebe3;

  
  --code-bg: #f0ede5;
  --code-text: #5b6b73;
  --code-border: #e2ddd2;

  
  --shadow-sm: 0 1px 3px rgba(45, 52, 54, 0.06);
  --shadow-md: 0 4px 12px rgba(45, 52, 54, 0.08);
  --shadow-lg: 0 8px 24px rgba(45, 52, 54, 0.1);

  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  
  --header-height: 64px;
}

[data-theme="dark"] {
  --bg: #1a1d21;
  --surface: #23272e;
  --surface-alt: #2a2f37;
  --surface-hover: #323842;

  --border: #3a3f48;
  --border-light: #32373f;

  --text: #e4e2dd;
  --text-muted: #9ca3af;
  --text-faint: #6b7280;

  --primary: #8baabb;
  --primary-hover: #a3c0cf;
  --primary-light: #2d3a42;
  --primary-bg: rgba(139, 170, 187, 0.12);

  --secondary: #9ab89e;
  --secondary-hover: #b0ccb4;
  --secondary-light: #2d3a30;

  --accent: #d4a882;
  --accent-hover: #e0bd9a;
  --accent-light: #3a3328;

  --code-bg: #2a2f37;
  --code-text: #b0bec5;
  --code-border: #3a3f48;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);
}

@media (prefers-color-scheme: dark) {
  [data-theme="auto"] {
    --bg: #1a1d21;
    --surface: #23272e;
    --surface-alt: #2a2f37;
    --surface-hover: #323842;
    --border: #3a3f48;
    --border-light: #32373f;
    --text: #e4e2dd;
    --text-muted: #9ca3af;
    --text-faint: #6b7280;
    --primary: #8baabb;
    --primary-hover: #a3c0cf;
    --primary-light: #2d3a42;
    --primary-bg: rgba(139, 170, 187, 0.12);
    --secondary: #9ab89e;
    --secondary-hover: #b0ccb4;
    --secondary-light: #2d3a30;
    --accent: #d4a882;
    --accent-hover: #e0bd9a;
    --accent-light: #3a3328;
    --code-bg: #2a2f37;
    --code-text: #b0bec5;
    --code-border: #3a3f48;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);
  }
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-main {
  flex: 1;
  padding: 32px 0 64px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 24px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}

.site-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
}

.site-titles {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-title-main {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
}

.site-title-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text);
  background-color: var(--surface-alt);
}

.nav-link.active {
  color: var(--primary);
  background-color: var(--primary-bg);
}

.nav-caret {
  font-size: 0.7rem;
  transition: transform 0.2s;
}

.nav-item.has-children:hover .nav-caret {
  transform: rotate(180deg);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  z-index: 200;
}

.nav-item.has-children:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-link {
  display: block;
  padding: 8px 12px;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}

.nav-dropdown-link:hover {
  color: var(--text);
  background-color: var(--surface-alt);
}

.nav-dropdown-link.active {
  color: var(--primary);
  background-color: var(--primary-bg);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}

.icon-btn:hover {
  color: var(--text);
  background-color: var(--surface-alt);
}

.icon-sun { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  [data-theme="auto"] .icon-sun { display: block; }
  [data-theme="auto"] .icon-moon { display: none; }
}

.mobile-menu-btn { display: none; }

.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 300;
}

.mobile-nav-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  width: 280px;
  max-width: 85vw;
  height: 100vh;
  background: var(--surface);
  border-left: 1px solid var(--border);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  z-index: 301;
  display: flex;
  flex-direction: column;
}

.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.mobile-nav-title {
  font-weight: 600;
  font-size: 1rem;
}

.mobile-nav-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

.mobile-nav-item {
  margin-bottom: 2px;
}

.mobile-nav-link {
  display: block;
  padding: 10px 14px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: var(--surface-alt);
  color: var(--primary);
}

.mobile-nav-children {
  padding-left: 16px;
  margin-top: 2px;
}

.mobile-nav-child-link {
  display: block;
  padding: 8px 14px;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}

.mobile-nav-child-link:hover,
.mobile-nav-child-link.active {
  color: var(--primary);
  background: var(--primary-bg);
}

.search-modal {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s;
}

.search-modal.open {
  opacity: 1;
  visibility: visible;
}

.search-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
}

.search-modal-box {
  position: relative;
  width: 100%;
  max-width: 560px;
  margin: 0 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(-12px);
  transition: transform 0.25s;
}

.search-modal.open .search-modal-box {
  transform: translateY(0);
}

.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}

.search-input-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 1rem;
  color: var(--text);
  font-family: inherit;
}

.search-input::placeholder {
  color: var(--text-faint);
}

.search-kbd {
  font-size: 0.72rem;
  padding: 2px 7px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  font-family: inherit;
}

.search-results {
  max-height: 400px;
  overflow-y: auto;
  padding: 8px;
}

.search-placeholder {
  padding: 32px 20px;
  text-align: center;
  color: var(--text-faint);
  font-size: 0.9rem;
}

.search-placeholder kbd {
  font-size: 0.75rem;
  padding: 1px 6px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
}

.search-result-item {
  display: block;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s;
}

.search-result-item:hover,
.search-result-item.active {
  background: var(--primary-bg);
}

.search-result-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.search-result-item.active .search-result-title {
  color: var(--primary);
}

.search-result-snippet {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.search-result-path {
  font-size: 0.72rem;
  color: var(--text-faint);
  margin-top: 4px;
}

.search-highlight {
  background: var(--accent-light);
  color: var(--accent);
  padding: 0 2px;
  border-radius: 2px;
  font-weight: 600;
}

.search-no-results {
  padding: 32px 20px;
  text-align: center;
  color: var(--text-faint);
  font-size: 0.9rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb-sep {
  color: var(--text-faint);
}

.breadcrumb-current {
  color: var(--text);
  font-weight: 500;
}

.page-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.page-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.page-date {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.page-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.78rem;
  background: var(--primary-bg);
  color: var(--primary);
  border-radius: 20px;
  font-weight: 500;
}

.markdown-body {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
}

.markdown-body > *:first-child {
  margin-top: 0;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  font-weight: 700;
  line-height: 1.35;
  margin: 2em 0 0.8em;
  color: var(--text);
  scroll-margin-top: calc(var(--header-height) + 16px);
}

.markdown-body h1 { font-size: 1.8rem; }
.markdown-body h2 {
  font-size: 1.5rem;
  padding-bottom: 0.4em;
  border-bottom: 1px solid var(--border);
}
.markdown-body h3 { font-size: 1.25rem; }
.markdown-body h4 { font-size: 1.1rem; }
.markdown-body h5 { font-size: 1rem; }
.markdown-body h6 { font-size: 0.9rem; color: var(--text-muted); }

.markdown-body .headerlink {
  opacity: 0;
  margin-left: 8px;
  color: var(--text-faint);
  text-decoration: none;
  transition: opacity 0.2s;
  font-size: 0.8em;
}

.markdown-body h1:hover .headerlink,
.markdown-body h2:hover .headerlink,
.markdown-body h3:hover .headerlink,
.markdown-body h4:hover .headerlink {
  opacity: 1;
}

.markdown-body p {
  margin: 1em 0;
}

.markdown-body ul,
.markdown-body ol {
  margin: 1em 0;
  padding-left: 2em;
}

.markdown-body li {
  margin: 0.4em 0;
}

.markdown-body li > ul,
.markdown-body li > ol {
  margin: 0.4em 0;
}

.markdown-body .task-list-item {
  list-style: none;
  margin-left: -1.5em;
}

.markdown-body .task-list-item-checkbox {
  margin-right: 0.5em;
  accent-color: var(--primary);
}

.markdown-body blockquote {
  margin: 1.5em 0;
  padding: 0.8em 1.2em;
  border-left: 4px solid var(--primary);
  background: var(--primary-bg);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-muted);
}

.markdown-body blockquote p {
  margin: 0.4em 0;
}

.markdown-body .admonition {
  margin: 1.5em 0;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface-alt);
}

.markdown-body .admonition-title {
  font-weight: 700;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.markdown-body .admonition.note { border-left: 4px solid var(--primary); }
.markdown-body .admonition.warning { border-left: 4px solid var(--accent); }
.markdown-body .admonition.tip { border-left: 4px solid var(--secondary); }

.markdown-body code {
  font-family: "Fira Code", "JetBrains Mono", "Cascadia Code", Consolas,
    "Liberation Mono", Menlo, monospace;
  font-size: 0.88em;
  font-weight: 500;
  padding: 0.15em 0.45em;
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 4px;
  border: 1px solid var(--code-border);
  
  hyphens: none;
  -webkit-hyphens: none;
}

.markdown-body pre {
  margin: 1.5em 0;
  padding: 18px 20px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius-md);
  overflow-x: auto;
  line-height: 1.6;
}

.markdown-body pre code {
  padding: 0;
  background: transparent;
  border: none;
  font-family: "Fira Code", "JetBrains Mono", "Cascadia Code", Consolas,
    "Liberation Mono", Menlo, monospace;
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--text);
  hyphens: none;
  -webkit-hyphens: none;
}

.markdown-body table {
  width: 100%;
  margin: 1.5em 0;
  border-collapse: collapse;
  font-size: 0.92rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.markdown-body thead {
  background: var(--surface-alt);
}

.markdown-body th,
.markdown-body td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.markdown-body th {
  font-weight: 600;
  color: var(--text);
}

.markdown-body tbody tr:last-child td {
  border-bottom: none;
}

.markdown-body tbody tr:hover {
  background: var(--surface-alt);
}

.markdown-body hr {
  margin: 2.5em 0;
  border: none;
  border-top: 1px solid var(--border);
}

.markdown-body a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.markdown-body a:hover {
  border-bottom-color: var(--primary);
}

.markdown-body img {
  border-radius: var(--radius-md);
  margin: 1.5em 0;
  border: 1px solid var(--border);
}

.markdown-body strong { font-weight: 700; }
.markdown-body em { font-style: italic; }

.markdown-body del {
  text-decoration: line-through;
  color: var(--text-muted);
}

.markdown-body .MathJax,
.markdown-body mjx-container {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
}

.markdown-body mjx-container {
  margin: 0.5em 0 !important;
  padding: 2px 0;
}

.markdown-body .MathJax_Display,
.markdown-body mjx-container[display="true"],
.markdown-body mjx-container[jax="CHTML"][display="true"] {
  display: block !important;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  max-width: 100% !important;
  padding: 6px 2px;
}

.markdown-body .MathJax:not(.MathJax_Display),
.markdown-body mjx-container:not([display="true"]) {
  overflow-x: visible;
}

.markdown-body mjx-container[display="true"] > mjx-math {
  max-width: 100%;
}

.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  padding: 40px 24px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 360px;
}

.footer-logo {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.footer-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 2px;
}

.footer-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col a,
.footer-col span {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 16px 0;
}

.footer-bottom .container {
  font-size: 0.82rem;
  color: var(--text-faint);
  text-align: center;
}

.hero {
  text-align: center;
  padding: 48px 0 40px;
}

.hero-logo {
  width: 88px;
  height: 88px;
  margin: 0 auto 20px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border);
}

.hero-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.hero-class {
  display: inline-block;
  padding: 4px 14px;
  background: var(--primary-bg);
  color: var(--primary);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 8px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin: 32px 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.25s;
}

.card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-bg);
  color: var(--primary);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  font-size: 1.3rem;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin: 32px 0;
}

.team-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: all 0.25s;
}

.team-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.team-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  flex-shrink: 0;
}

.team-info {
  flex: 1;
  min-width: 0;
}

.team-role {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.team-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.team-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.paper-list {
  margin: 24px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}

.paper-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s, padding 0.2s;
}

.paper-item:last-child {
  border-bottom: none;
}

.paper-item:hover {
  background: var(--surface-alt);
  padding-left: 24px;
}

.paper-info {
  flex: 1;
  min-width: 0;
}

.paper-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.paper-title a {
  color: inherit;
}

.paper-title a:hover {
  color: var(--primary);
}

.paper-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.paper-badge {
  display: inline-block;
  padding: 1px 8px;
  font-size: 0.72rem;
  font-weight: 600;
  border-radius: 4px;
  line-height: 1.6;
}

.paper-badge-pinned {
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid var(--accent);
}

.paper-item-pinned {
  border-left: 3px solid var(--accent);
  padding-left: 12px;
}

.paper-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  padding: 16px 0;
  flex-wrap: wrap;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  font-size: 0.88rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}

.pagination-btn:hover:not(.disabled):not(.active) {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
}

.pagination-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  font-weight: 600;
}

.pagination-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.pagination-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0 8px;
}

.pagination-ellipsis {
  color: var(--text-faint);
  padding: 0 4px;
  font-size: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  font-family: inherit;
}

.btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
}

.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn.btn-primary {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.btn.btn-primary:hover {
  background: var(--primary-hover);
  color: #ffffff;
  border-color: var(--primary-hover);
}

.btn.btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn,
.btn-icon,
.icon-btn,
.nav-link,
.mobile-nav-link,
.search-result-item {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn:active,
.btn-icon:active,
.icon-btn:active {
  transform: scale(0.96);
  transition: transform 0.1s;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
}

.markdown-body pre {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
}

.markdown-body img {
  max-width: 100%;
  height: auto;
}

.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
  margin: 1em 0;
}

.table-wrapper table {
  margin: 0;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 40px 0 20px;
}

.section-heading h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  border: none;
  padding: 0;
}

.section-heading-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 0.2s;
}

.contact-item:hover {
  border-color: var(--primary);
}

.contact-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-bg);
  color: var(--primary);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
}

@media (max-width: 960px) {
  .site-nav { display: none; }
  .mobile-menu-btn { display: inline-flex; }

  .hero-title { font-size: 1.8rem; }
  .page-title { font-size: 1.6rem; }

  .footer-inner {
    flex-direction: column;
    gap: 28px;
  }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .site-main { padding: 20px 0 40px; }

  .site-title-sub { display: none; }
  .hero { padding: 28px 0 24px; }
  .hero-title { font-size: 1.5rem; }
  .hero-logo { width: 68px; height: 68px; }

  .card-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .paper-item {
    flex-direction: column;
    gap: 12px;
  }

  .paper-info {
    min-width: 0;
  }

  .paper-actions {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .paper-actions .btn {
    flex: 1;
    min-width: 80px;
    justify-content: center;
    min-height: 40px;
  }

  .markdown-body {
    font-size: 0.95rem;
  }

  .markdown-body h1 { font-size: 1.5rem; }
  .markdown-body h2 { font-size: 1.3rem; }
  .markdown-body h3 { font-size: 1.15rem; }

  
  .search-modal {
    padding-top: 5vh;
    padding-left: 0;
    padding-right: 0;
  }

  .search-modal-box {
    margin: 0 12px;
    max-width: 100%;
    border-radius: var(--radius-md);
  }

  .search-input-wrap {
    padding: 12px 14px;
    gap: 8px;
  }

  .search-input {
    font-size: 16px; 
    min-width: 0;
  }

  .search-kbd {
    display: none; 
  }

  .search-results {
    max-height: 55vh;
  }

  .search-result-item {
    padding: 10px 12px;
  }

  .search-result-title {
    font-size: 0.92rem;
  }

  .search-result-snippet {
    font-size: 0.82rem;
  }

  
  .page-actions {
    padding: 10px 12px;
    gap: 6px;
  }

  .page-actions .btn-icon {
    flex: 1;
    min-width: 0;
    justify-content: center;
    min-height: 40px;
    padding: 8px 10px;
    font-size: 0.78rem;
  }

  
  .btn,
  .btn-icon {
    min-height: 40px;
  }

  .icon-btn {
    min-width: 40px;
    min-height: 40px;
  }
}

@media (max-width: 380px) {
  .container { padding: 0 12px; }

  .hero-title { font-size: 1.3rem; }
  .page-title { font-size: 1.3rem; }

  .site-title-main {
    font-size: 0.95rem;
  }

  .paper-actions .btn {
    font-size: 0.8rem;
    padding: 6px 10px;
  }

  .search-modal-box {
    margin: 0 8px;
  }

  .search-input {
    font-size: 15px;
  }
}

.page-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  flex-wrap: wrap;
}

.page-actions-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-right: 4px;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 500;
  font-family: inherit;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-icon:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
}

.btn-icon svg {
  flex-shrink: 0;
}

.btn-icon.active {
  background: var(--primary-bg);
  border-color: var(--primary);
  color: var(--primary);
}

@media print {
  .site-header,
  .site-footer,
  .search-modal,
  .mobile-nav,
  .mobile-nav-overlay,
  .breadcrumb,
  .page-actions,
  .hero-actions {
    display: none !important;
  }

  .site-main { padding: 0; }
  .container { max-width: 100%; padding: 0 24px; }

  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
    line-height: 1.6;
  }

  .page-title {
    font-size: 20pt;
    border-bottom: 2px solid #000;
    padding-bottom: 8px;
  }

  .markdown-body h2 {
    border-bottom: 1px solid #333;
  }

  .markdown-body a {
    color: #000;
    text-decoration: underline;
  }

  .markdown-body pre {
    background: #f5f5f5 !important;
    border: 1px solid #ccc !important;
    white-space: pre-wrap;
    word-wrap: break-word;
  }

  .markdown-body code {
    background: #f0f0f0 !important;
    border: 1px solid #ddd !important;
  }

  .markdown-body table {
    border: 1px solid #333;
  }

  .markdown-body th,
  .markdown-body td {
    border: 1px solid #666;
  }

  .card,
  .team-card,
  .contact-item {
    break-inside: avoid;
    border: 1px solid #ccc !important;
    box-shadow: none !important;
  }

  
  .markdown-body a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    color: #666;
  }

  @page {
    margin: 2cm;
  }
}

.finance-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.finance-select-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.finance-select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

.finance-select:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.finance-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.finance-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.finance-card-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.finance-card-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  font-family: "Fira Code", monospace;
}

.finance-card-sub {
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-top: 6px;
}

.finance-positive { color: var(--secondary); }
.finance-negative { color: #d47c7c; }

.finance-section-title {
  font-size: 1.15rem;
  margin: 28px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
}

.finance-subtitle {
  font-size: 0.95rem;
  margin: 16px 0 8px;
  color: var(--text-muted);
}

.finance-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.finance-table th,
.finance-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.finance-table th {
  background: var(--surface-alt);
  font-weight: 600;
  color: var(--text);
}

.finance-table td {
  font-family: "Fira Code", monospace;
  color: var(--text-muted);
}

.finance-table tr:hover {
  background: var(--surface-hover);
}

.finance-total-row {
  font-weight: 700;
  background: var(--primary-bg);
}

.finance-total-row td {
  color: var(--text);
  border-top: 2px solid var(--primary);
}

.finance-table-sm {
  font-size: 0.85rem;
}

.finance-table-sm th,
.finance-table-sm td {
  padding: 8px 12px;
}

.finance-note {
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-top: 16px;
  padding: 12px;
  background: var(--surface-alt);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}

.timeline-container {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline-container::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--primary), var(--accent));
  transform: translateX(-50%);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 16px 32px;
  margin-bottom: 8px;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  top: 24px;
  width: 16px;
  height: 16px;
  background: var(--surface);
  border: 3px solid var(--primary);
  border-radius: 50%;
  z-index: 1;
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -8px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -8px;
}

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: inline-block;
  max-width: 100%;
  text-align: left;
}

.timeline-date {
  font-size: 0.82rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 6px;
  font-family: "Fira Code", monospace;
}

.timeline-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

@media (max-width: 640px) {
  .timeline-container::before {
    left: 20px;
  }
  .timeline-item,
  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    width: 100%;
    left: 0;
    text-align: left;
    padding-left: 48px;
    padding-right: 8px;
  }
  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 12px;
    right: auto;
  }
  .finance-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .finance-card-value {
    font-size: 1.2rem;
  }
}