/* www.pyroglaux.com/blog/ — same layout as blog.aieinksmart.com, in the main site's colours
   (#024886 navy from the Waimaoniu template, #EE922B orange accent). */
:root {
  --blue: #024886;
  --orange: #ee922b;
  --ink: #1f2933;
  --text: #555f6b;
  --line: #e2e6ea;
  --soft: #f2f6f9;
  --wrap: 1140px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: #fff; color: var(--text);
  font: 16px/1.65 Nunito, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
img { max-width: 100%; height: auto; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
svg { width: 1em; height: 1em; fill: currentColor; flex: none; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }

/* ---------- header ---------- */
.site-header { background: #fff; position: sticky; top: 0; z-index: 20; box-shadow: 0 1px 0 var(--line); }
.header-row { display: flex; align-items: center; gap: 28px; min-height: 76px; }
.logo img { height: 40px; width: auto; display: block; }
.main-nav { flex: 1; display: flex; justify-content: center; }
.main-nav > ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0 24px; }
.main-nav li { position: relative; }
.main-nav > ul > li > a {
  display: inline-flex; align-items: center; gap: 4px; padding: 14px 0;
  color: var(--ink); font-weight: 700; font-size: 15px;
}
.main-nav > ul > li > a.cur { color: var(--orange); }
.main-nav a:hover { color: var(--orange); text-decoration: none; }
.main-nav .sub {
  list-style: none; margin: 0; padding: 8px 0; position: absolute; top: 100%; left: -16px; min-width: 250px;
  background: #fff; box-shadow: 0 8px 24px rgba(0, 0, 0, .12); border-top: 3px solid var(--blue);
  opacity: 0; visibility: hidden; transform: translateY(6px); transition: .15s;
}
.main-nav li:hover > .sub, .main-nav li:focus-within > .sub { opacity: 1; visibility: visible; transform: none; }
.main-nav .sub a { display: block; padding: 9px 18px; color: var(--ink); font-weight: 600; font-size: 14px; }
.main-nav .sub a:hover { background: var(--soft); color: var(--blue); }
.btn-quote {
  display: inline-block; background: var(--orange); color: #fff; font-weight: 700; font-size: 13px;
  letter-spacing: 1.2px; text-transform: uppercase; padding: 11px 22px; border-radius: 30px; white-space: nowrap;
}
.btn-quote:hover { background: #d97f1c; text-decoration: none; }
.nav-toggle, .nav-burger { display: none; }

/* ---------- hero ---------- */
.hero { background: linear-gradient(120deg, #024886 0%, #01325e 100%); color: #fff; padding: 56px 0 50px; }
.hero .crumbs { font-size: 14px; opacity: .85; margin-bottom: 10px; }
.hero .crumbs a { color: #fff; }
.hero h1 { margin: 0; max-width: 900px; font-size: 36px; line-height: 1.2; font-weight: 800; }
.hero p { margin: 12px 0 0; max-width: 760px; opacity: .9; }

/* ---------- layout ---------- */
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 40px; padding-top: 36px; padding-bottom: 60px; }
.post { min-width: 0; }

.meta { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-bottom: 18px; font-size: 14px; }
.meta span { display: inline-flex; align-items: center; gap: 6px; color: var(--ink); font-weight: 700; }
.meta svg { color: var(--blue); }

/* table of contents (inline on small screens) */
.toc { border: 1px solid var(--line); border-radius: 8px; margin-bottom: 24px; }
.toc summary { list-style: none; cursor: pointer; padding: 14px 18px; color: var(--ink); font-size: 18px; font-weight: 800; }
.toc summary::-webkit-details-marker { display: none; }
.toc ol { margin: 0; padding: 0 18px 16px 40px; }
.toc li { padding: 3px 0; }
.toc a { font-weight: 700; }

.feature { margin: 0 0 24px; }
.feature img { width: 100%; display: block; border-radius: 8px; }

/* article body */
.entry h2 { color: var(--ink); font-size: 28px; line-height: 1.2; font-weight: 800; margin: 34px 0 14px; scroll-margin-top: 96px; }
.entry h3 { color: var(--ink); font-size: 21px; line-height: 1.3; font-weight: 800; margin: 24px 0 10px; scroll-margin-top: 96px; }
.entry p { margin: 0 0 16px; }
.entry ul, .entry ol { margin: 0 0 16px; padding-left: 24px; }
.entry li { margin: 4px 0; }
.entry strong { color: var(--ink); }
.entry a { font-weight: 700; }
.entry img { display: block; margin: 20px auto; border-radius: 6px; }
.entry figure { margin: 24px 0; }
.entry figcaption { text-align: center; font-size: 14px; }
.entry blockquote { margin: 20px 0; padding: 12px 20px; border-left: 4px solid var(--orange); background: var(--soft); }
.entry code { background: var(--soft); padding: 1px 5px; border-radius: 3px; font-size: .92em; color: var(--ink); }
.entry table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15px; display: block; overflow-x: auto; }
.entry th, .entry td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; vertical-align: top; }
.entry th { background: var(--soft); color: var(--ink); }
.entry .faq h3 { font-size: 18px; }

/* call to action under every post */
.cta { margin: 36px 0 0; padding: 24px; border-radius: 10px; background: var(--soft); border-left: 5px solid var(--orange); }
.cta h3 { margin: 0 0 6px; color: var(--ink); font-size: 21px; }
.cta p { margin: 0 0 14px; }

.recent-block { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line); }
.recent-block h3 { color: var(--ink); font-size: 22px; font-weight: 800; margin: 0 0 12px; }
.recent-block ul { margin: 0; padding-left: 20px; }
.recent-block li { padding: 3px 0; }
.recent-block a { font-weight: 700; }
.recent-block span { font-size: 14px; }

/* ---------- sidebar ---------- */
.sidebar { display: flex; flex-direction: column; gap: 24px; }
.widget { border: 1px solid var(--line); border-radius: 8px; padding: 18px; }
.widget h3 { font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--blue); margin: 0 0 10px; }
.widget ul { list-style: none; margin: 0; padding: 0; }
.widget li { padding: 6px 0; border-top: 1px solid var(--line); font-size: 14px; }
.widget li:first-child { border-top: 0; }
.widget a { color: var(--ink); font-weight: 600; }
.widget a:hover { color: var(--blue); }
.widget.quote { background: var(--blue); border-color: var(--blue); color: #fff; }
.widget.quote h3 { color: #fff; }
.widget.quote p { margin: 0 0 14px; font-size: 14px; }

.toc-side { position: sticky; top: 96px; max-height: calc(100vh - 116px); display: flex; flex-direction: column; }
.toc-side ol { list-style: none; margin: 0; padding: 0 4px 0 0; overflow-y: auto; }
.toc-side li { border-top: 1px solid var(--line); }
.toc-side li:first-child { border-top: 0; }
.toc-side a { display: flex; gap: 10px; padding: 8px 2px; color: var(--ink); font-size: 14px; font-weight: 600; line-height: 1.4; }
.toc-side a b { color: var(--orange); font-size: 12px; min-width: 18px; padding-top: 1px; }
.toc-side a:hover, .toc-side a.active { color: var(--blue); text-decoration: none; }
.toc-side a.active { font-weight: 800; }

/* ---------- list page ---------- */
.list { padding-top: 36px; padding-bottom: 60px; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px 24px; }
.card { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; display: flex; flex-direction: column; }
.card .thumb img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; display: block; }
.card .thumb.blank { aspect-ratio: 16 / 9; background: linear-gradient(120deg, #024886, #0b6bb8); }
.card-body { padding: 16px 18px 20px; }
.card .cat { color: var(--orange); font-size: 12px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; }
.card h2 { font-size: 19px; line-height: 1.3; margin: 6px 0 8px; font-weight: 800; }
.card h2 a { color: var(--ink); }
.card p { margin: 0 0 10px; font-size: 15px; }
.card time { font-size: 13px; }
.empty { padding: 40px 0; text-align: center; }
.more-news { margin-top: 40px; text-align: center; }

/* ---------- footer ---------- */
.site-footer { background: radial-gradient(at 100% 0%, #024886 0%, #10202f 100%); color: #fff; padding: 44px 0 22px; font-size: 14px; }
.site-footer a { color: #fff; font-weight: 600; }
.f-grid { display: grid; grid-template-columns: repeat(3, 1fr) 1.4fr; gap: 32px; }
.f-col h4 { color: #fff; margin: 0 0 14px; font-size: 18px; font-weight: 800; letter-spacing: .3px; }
.f-col ul { list-style: none; margin: 0; padding: 0; }
.f-col li { padding: 5px 0; }
.footer-brand-row {
  border-top: 1px solid rgba(255, 255, 255, .22); margin-top: 36px; padding-top: 18px;
  display: flex; flex-wrap: wrap; gap: 8px 0; font-size: 13px; color: rgba(255, 255, 255, .7);
}
.footer-brand-row span:not(:last-child)::after { content: "|"; color: rgba(255, 255, 255, .35); margin: 0 10px; }
.copy { border-top: 1px solid rgba(255, 255, 255, .22); margin-top: 18px; padding-top: 16px; text-align: center;
  color: rgba(255, 255, 255, .75); font-size: 13px; }

/* ---------- responsive ---------- */
@media (min-width: 981px) { .toc-inline { display: none; } }
@media (max-width: 1100px) {
  .main-nav > ul { gap: 0 16px; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .toc-side { display: none; }
  .f-grid { grid-template-columns: 1fr 1fr; }
  .header-row { flex-wrap: wrap; min-height: 64px; gap: 12px; }
  .nav-burger { display: block; order: 3; width: 28px; height: 22px; position: relative; cursor: pointer; margin-left: auto; }
  .nav-burger span, .nav-burger span::before, .nav-burger span::after {
    content: ""; position: absolute; left: 0; width: 28px; height: 3px; background: var(--blue); border-radius: 2px;
  }
  .nav-burger span { top: 9px; }
  .nav-burger span::before { top: -9px; }
  .nav-burger span::after { top: 9px; }
  .btn-quote { order: 2; }
  .main-nav { order: 4; flex-basis: 100%; display: none; padding-bottom: 12px; justify-content: flex-start; }
  .nav-toggle:checked ~ .main-nav { display: block; }
  .main-nav > ul { flex-direction: column; }
  .main-nav > ul > li > a { padding: 8px 0; }
  .main-nav .sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 6px 14px; }
  .main-nav .sub a { padding: 5px 0; }
}
@media (max-width: 600px) {
  .f-grid, .grid { grid-template-columns: 1fr; }
  .hero { padding: 36px 0 32px; }
  .hero h1 { font-size: 26px; }
  .entry h2 { font-size: 23px; }
  .entry h3 { font-size: 19px; }
  .btn-quote { display: none; }
}