@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500;1,600&display=swap');

:root {
  --font: 'DM Sans', Arial, sans-serif;
  --text-size: 16px;
  --display-size: 64px;
  --page: #f4f1e9;
  --ink: #20241f;
  --muted: #646b61;
  --blue: #335cff;
  --line: #d5d6ca;
}

body { font-size: var(--text-size); }
small, button, input { font-size: inherit; }
sup, sub { font-size: inherit; }
h1, h2 { font-size: var(--display-size); }
h3 { font-size: var(--text-size); font-weight: 600; }
@media (max-width: 650px) { :root { --display-size: 40px; } }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: var(--font);

  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); text-decoration: none; text-underline-offset: 4px; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--blue); outline-offset: 5px; }
button { font-family: var(--font); }
.skip-link {
  position: fixed;
  top: -80px;
  left: 20px;
  z-index: 20;
  padding: 10px 18px;
  color: #fff;
  background: var(--ink);
}
.skip-link:focus { top: 12px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: var(--page);
  backdrop-filter: blur(16px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  width: min(1180px, calc(100% - 64px));
  min-height: 86px;
  margin: 0 auto;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);

  font-weight: 700;
  letter-spacing: 1px;
  white-space: nowrap;
}
.brand::before { width: 10px; height: 10px; border-radius: 50%; background: var(--blue); content: ""; }
.brand-cn { margin-left: 5px; color: var(--muted);  font-weight: 400; letter-spacing: 1px; }
.brand:hover { text-decoration: none; }
.primary-nav { display: flex; align-items: center; gap: 28px; line-height: normal; }
.primary-nav a { position: relative; padding: 12px 0; color: var(--ink);  }
.primary-nav a:not(.cv-link)::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
  content: "";
}
.primary-nav a:hover { text-decoration: none; }
.primary-nav a:hover::after, .primary-nav a[aria-current]::after { transform: scaleX(1); }
.primary-nav .cv-link { padding: 12px 15px; border: 1px solid var(--ink); border-radius: 30px; }
.cv-link span { margin-left: 17px; }
.primary-nav .cv-link:hover { border-color: var(--ink); }
.menu-toggle { display: none; align-items: center; gap: 12px; border: 0; color: var(--ink); background: transparent;  padding: 10px 0 10px 15px; cursor: pointer; }
.menu-toggle span {  font-weight: 400; }
.archive-wrap { width: min(1180px, calc(100% - 64px)); margin: 0 auto; }
.archive-nav { display: flex; flex-wrap: wrap; gap: 8px 24px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.archive-nav a { color: var(--muted);  }
.archive-nav a:hover, .archive-nav a[aria-current] { color: var(--blue); }
.archive-nav a[aria-current] { text-decoration: underline; text-decoration-thickness: 2px; }
/* The generator still emits the legacy MENU entries; their destinations are in the static navigation above. */
#layout-menu-container { display: none; }
#layout-content { max-width: 940px; min-height: 55vh; padding: 68px 0 80px; margin: 0 auto; overflow-wrap: break-word; }
#toptitle { margin-bottom: 36px; }
h1, h2, h3 { font-family: var(--font); }
#toptitle h1 { margin: 0;  font-weight: 600; line-height: 1.08; letter-spacing: -.055em; }
#subtitle { margin-top: 20px; color: var(--muted); }
h2 { margin: 64px 0 24px; padding-top: 18px; border-top: 1px solid var(--line);  font-weight: 550; line-height: 1.3; letter-spacing: -.035em; scroll-margin-top: 110px; }
h3 { margin: 34px 0 15px;  font-weight: 600; line-height: 1.4; letter-spacing: -.02em; }
#toptitle + h2 { margin-top: 0; }
p { margin: 0 0 20px; }
ul, ol { padding-left: 22px; margin: 0 0 24px; }
li { padding-left: 7px; margin-bottom: 15px; }
li::marker { color: #87928d; }
li p { margin-bottom: 8px; }
li ul, li ol { margin-top: 8px; margin-bottom: 15px; }
li li { margin-bottom: 5px; color: #55615e;  }
ol ol { list-style-type: lower-alpha; }
ol ol ol { list-style-type: lower-roman; }
#layout-content > ol > li { padding-bottom: 20px; margin-bottom: 24px; border-bottom: 1px solid var(--line); }
#layout-content > ol > li:last-child { border-bottom: 0; }
strong, b { font-weight: 650; }
img { max-width: 100%; height: auto; }
img[height="32px"] { height: 32px; width: auto; margin-right: 17px; }
iframe { display: block; max-width: 100%; border-radius: 8px; }
table { max-width: 100%; border-collapse: collapse; }
td, th { padding: 9px 14px; border-bottom: 1px solid var(--line); text-align: left; }
pre, tt, code { font-family: var(--font);  }
pre { overflow-x: auto; padding: 20px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
tt, code { padding: 2px 5px; border-radius: 3px; background: #e9ede7; }
.blockcontent { padding: 20px 24px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.blocktitle { margin-bottom: 10px; font-weight: 650; }
.infoblock, .codeblock { margin: 25px 0; }
.section-nav { margin: -6px 0 40px; }
.section-nav-label { display: block; margin-bottom: 11px; color: var(--muted);  font-weight: 600; letter-spacing: .13em; }
.section-nav-links { display: flex; flex-wrap: wrap; gap: 8px; }
.section-nav a { padding: 5px 13px; border: 1px solid var(--line); border-radius: 4px; color: #53605a; background: #fff;  transition: border-color .2s ease, color .2s ease; }
.section-nav a:hover { border-color: var(--blue); color: var(--blue); text-decoration: none; }
#footer-container { border-top: 1px solid var(--line); }
#footer { max-width: 940px; padding: 25px 0 32px; margin: 0 auto; color: var(--muted);  line-height: 1.8; }
#footer a { color: inherit; }

@media (max-width: 1100px) {
  .brand-cn { display: none; }
  .primary-nav { gap: 20px; }
}

@media (max-width: 820px) {
  .header-inner, .archive-wrap { width: calc(100% - 48px); }
  .header-inner { min-height: 74px; }
  .primary-nav { gap: 16px; }
  .primary-nav a {  }
  .primary-nav .cv-link { padding: 9px 12px; }
  .cv-link span { display: none; }
}

@media (max-width: 1100px) {
  .header-inner { min-height: 70px; flex-wrap: wrap; gap: 0; }
  .brand {  }
  .brand-cn { display: inline;  }
  .primary-nav { flex-basis: 100%; flex-wrap: wrap; gap: 18px 25px; padding: 0 0 20px; }
  .primary-nav a {  }
  .js .menu-toggle { display: flex; }
  .js .primary-nav { display: none; position: absolute; top: 70px; left: 0; right: 0; max-height: calc(100vh - 70px); max-height: calc(100dvh - 70px); overflow-y: auto; padding: 18px 24px 25px; border-bottom: 1px solid var(--line); background: var(--page); align-items: stretch; gap: 5px; }
  .js .primary-nav.is-open { display: flex; flex-direction: column; }
  .js .primary-nav a:not(.cv-link) { padding: 13px 0;  }
  .js .primary-nav .cv-link { margin-top: 12px; padding: 13px;  }
  .cv-link span { display: inline; float: right; }
  .archive-nav { gap: 8px 19px; padding: 20px 0; }
  .archive-nav a {  }
  #layout-content { padding: 45px 0 55px; }
  #toptitle { margin-bottom: 30px; }
  #toptitle h1 {  }
  h2 { margin-top: 45px;  }
  body {  line-height: 1.75; }
  li { padding-left: 3px; }
  #footer { padding: 22px 0 30px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}