:root {
  --orange: #ff6b35;
  --orange-light: #ff8c5f;
  --orange-dark: #e5521c;
  --teal: #4ecdc4;
  --purple: #845ec2;
  --yellow: #ffd166;
  --bg: #fffaf6;
  --bg-alt: #ffffff;
  --bg-soft: #fff3ec;
  --text: #2b2118;
  --text-soft: #6b5d52;
  --text-mute: #9c8f84;
  --border: rgba(255, 107, 53, 0.16);
  --card-shadow: 0 10px 30px rgba(255, 107, 53, 0.08), 0 2px 8px rgba(43, 33, 24, 0.04);
  --card-shadow-hover: 0 18px 44px rgba(255, 107, 53, 0.18), 0 4px 12px rgba(43, 33, 24, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.62);
  --glass-border: rgba(255, 255, 255, 0.75);
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 26px;
  --max-width: 1180px;
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
}

html[data-theme="dark"],
body.dark-mode {
  --bg: #14100d;
  --bg-alt: #1d1712;
  --bg-soft: #241b14;
  --text: #f4ede6;
  --text-soft: #c4b6a9;
  --text-mute: #8f8175;
  --border: rgba(255, 140, 95, 0.22);
  --glass-bg: rgba(30, 23, 17, 0.62);
  --glass-border: rgba(255, 255, 255, 0.08);
  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.25);
  --card-shadow-hover: 0 18px 44px rgba(255, 107, 53, 0.22), 0 4px 12px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14100d;
    --bg-alt: #1d1712;
    --bg-soft: #241b14;
    --text: #f4ede6;
    --text-soft: #c4b6a9;
    --text-mute: #8f8175;
    --border: rgba(255, 140, 95, 0.22);
    --glass-bg: rgba(30, 23, 17, 0.62);
    --glass-border: rgba(255, 255, 255, 0.08);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.25);
    --card-shadow-hover: 0 18px 44px rgba(255, 107, 53, 0.22), 0 4px 12px rgba(0, 0, 0, 0.35);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(circle at 8% 4%, rgba(255, 107, 53, 0.1), transparent 42%),
    radial-gradient(circle at 92% 12%, rgba(78, 205, 196, 0.1), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(132, 94, 194, 0.08), transparent 50%);
  background-attachment: fixed;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
  overflow-x: hidden;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--orange-dark);
  text-decoration: none;
  transition: color 0.25s var(--ease), opacity 0.25s var(--ease);
}

a:hover,
a:focus-visible {
  color: var(--orange);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(255, 107, 53, 0.55);
  outline-offset: 3px;
  border-radius: 6px;
}

ul,
ol {
  padding-left: 1.4em;
}

h1, h2, h3, h4 {
  line-height: 1.3;
  color: var(--text);
  margin: 0 0 0.6em;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.7rem, 4.2vw, 2.7rem);
}

h2 {
  font-size: clamp(1.35rem, 2.8vw, 1.9rem);
  position: relative;
  padding-left: 18px;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 6px;
  border-radius: 6px;
  background: linear-gradient(180deg, var(--orange), var(--yellow));
}

h3 {
  font-size: clamp(1.08rem, 1.8vw, 1.25rem);
  margin-top: 1.6em;
}

p {
  margin: 0 0 1em;
  color: var(--text-soft);
}

strong {
  color: var(--text);
}

blockquote {
  margin: 1.5em 0;
  padding: 20px 24px;
  border-left: 4px solid var(--orange);
  border-radius: var(--radius);
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--card-shadow);
}

blockquote p {
  margin: 0 0 0.6em;
  color: var(--text-soft);
}

blockquote p:last-child {
  margin-bottom: 0;
}

time {
  font-size: 0.85rem;
  color: var(--text-mute);
  font-variant-numeric: tabular-nums;
}

/* ============ Header ============ */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 12px clamp(16px, 4vw, 40px);
  background: var(--glass-bg);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 24px rgba(43, 33, 24, 0.05);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.brand svg {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  box-shadow: 0 6px 18px rgba(255, 107, 53, 0.4);
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}

.brand:hover svg {
  transform: rotate(-12deg) scale(1.08);
  box-shadow: 0 10px 26px rgba(255, 107, 53, 0.55);
}

header nav {
  flex: 1 1 auto;
  min-width: 0;
}

header nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

header nav ul li a {
  display: inline-block;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-soft);
  transition: background 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease);
}

header nav ul li a:hover,
header nav ul li a:focus-visible {
  background: rgba(255, 107, 53, 0.12);
  color: var(--orange-dark);
  transform: translateY(-2px);
}

.search {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 1 320px;
}

.search label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.search input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 10px 16px;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg-alt);
  border: 1.5px solid var(--border);
  border-radius: 999px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

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

.search input:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.14);
  outline: none;
}

.search button,
.theme-toggle,
.menu-toggle {
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: linear-gradient(135deg, var(--orange), var(--orange-light));
  border: none;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 6px 16px rgba(255, 107, 53, 0.32);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), filter 0.25s var(--ease);
}

.search button:hover,
.theme-toggle:hover,
.menu-toggle:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255, 107, 53, 0.45);
  filter: saturate(1.1);
}

.search button:active,
.theme-toggle:active,
.menu-toggle:active {
  transform: translateY(0);
}

.theme-toggle {
  background: linear-gradient(135deg, var(--purple), #a37de0);
  box-shadow: 0 6px 16px rgba(132, 94, 194, 0.32);
}

.theme-toggle:hover {
  box-shadow: 0 10px 24px rgba(132, 94, 194, 0.45);
}

.menu-toggle {
  display: none;
  background: linear-gradient(135deg, var(--teal), #6fd8d0);
  box-shadow: 0 6px 16px rgba(78, 205, 196, 0.32);
}

/* ============ Breadcrumb ============ */
body > nav[aria-label="面包屑导航"] {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px clamp(16px, 4vw, 40px) 0;
}

body > nav[aria-label="面包屑导航"] ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.85rem;
  color: var(--text-mute);
}

body > nav[aria-label="面包屑导航"] li + li::before {
  content: "›";
  margin-right: 8px;
  color: var(--text-mute);
  opacity: 0.7;
}

body > nav[aria-label="面包屑导航"] a {
  color: var(--text-soft);
}

body > nav[aria-label="面包屑导航"] a:hover {
  color: var(--orange);
}

body > nav[aria-label="面包屑导航"] [aria-current="page"] {
  color: var(--orange-dark);
  font-weight: 600;
}

/* ============ Main layout ============ */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px) 80px;
}

main > section {
  margin-top: clamp(40px, 6vw, 72px);
  padding: clamp(24px, 4vw, 44px);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.4s var(--ease), transform 0.4s var(--ease), background 0.4s var(--ease);
  animation: fadeUp 0.7s var(--ease) both;
}

main > section:hover {
  box-shadow: var(--card-shadow-hover);
}

main > section#hero {
  margin-top: clamp(20px, 3vw, 32px);
  background:
    linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(132, 94, 194, 0.08) 50%, rgba(78, 205, 196, 0.1));
  border-color: rgba(255, 107, 53, 0.22);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ============ Hero ============ */
#hero {
  position: relative;
  overflow: hidden;
}

#hero::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 209, 102, 0.4), transparent 70%);
  pointer-events: none;
  animation: floatY 7s ease-in-out infinite;
}

#hero h1 {
  background: linear-gradient(120deg, var(--orange-dark), var(--orange) 40%, var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--orange-dark);
}

#hero > p {
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  max-width: 72ch;
}

/* ============ Carousel ============ */
.carousel {
  display: flex;
  gap: 20px;
  margin: 28px 0 32px;
  padding: 6px 4px 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--orange) transparent;
}

.carousel::-webkit-scrollbar {
  height: 6px;
}

.carousel::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, var(--orange), var(--yellow));
  border-radius: 999px;
}

.carousel::-webkit-scrollbar-track {
  background: transparent;
}

.carousel figure {
  flex: 0 0 min(560px, 88%);
  margin: 0;
  scroll-snap-align: start;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-soft);
  box-shadow: var(--card-shadow);
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease);
}

.carousel figure:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--card-shadow-hover);
}

.carousel figure svg {
  width: 100%;
  height: auto;
  aspect-ratio: 800 / 320;
  object-fit: cover;
}

.carousel figcaption {
  padding: 14px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-soft);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* ============ Stats ============ */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}

.stats li {
  padding: 20px 16px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-soft);
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.stats li:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-shadow-hover);
}

.stats strong {
  display: block;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 4px;
  background: linear-gradient(120deg, var(--orange), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-variant-numeric: tabular-nums;
}

/* ============ Articles ============ */
main article {
  padding: 20px 22px;
  margin-bottom: 16px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}

main article:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
  border-color: rgba(255, 107, 53, 0.4);
}

main article h3 {
  margin-top: 0;
  margin-bottom: 6px;
}

main article h3 + p {
  margin-bottom: 8px;
}

main article a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 107, 53, 0.1);
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

main article a::after {
  content: "→";
  transition: transform 0.25s var(--ease);
}

main article a:hover {
  background: rgba(255, 107, 53, 0.2);
  transform: translateX(2px);
}

main article a:hover::after {
  transform: translateX(4px);
}

/* ============ FAQ details ============ */
#faq details {
  margin-bottom: 12px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}

#faq details:hover {
  border-color: rgba(255, 107, 53, 0.35);
  box-shadow: var(--card-shadow);
}

#faq details[open] {
  border-color: rgba(255, 107, 53, 0.45);
  box-shadow: var(--card-shadow-hover);
}

#faq summary {
  position: relative;
  padding: 16px 52px 16px 20px;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

#faq summary::-webkit-details-marker {
  display: none;
}

#faq summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--orange), var(--orange-light));
  border-radius: 50%;
  transition: transform 0.35s var(--ease), background 0.35s var(--ease);
}

#faq details[open] summary {
  color: var(--orange-dark);
  background: rgba(255, 107, 53, 0.06);
}

#faq details[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
  background: linear-gradient(135deg, var(--purple), #a37de0);
}

#faq details p {
  margin: 0;
  padding: 0 20px 18px;
  font-size: 0.94rem;
  animation: fadeUp 0.4s var(--ease) both;
}

/* ============ Contact & lists ============ */
#contact ul,
#sitemap ul,
#links ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1em;
  display: grid;
  gap: 10px;
}

#contact ul {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

#contact ul li,
#sitemap ul li,
#links ul li {
  position: relative;
  padding: 12px 16px 12px 40px;
  font-size: 0.92rem;
  color: var(--text-soft);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), color 0.3s var(--ease);
  word-break: break-word;
}

#contact ul li::before,
#sitemap ul li::before,
#links ul li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  width: 8px;
  height: 8px;
  transform: translateY(-50%) rotate(45deg);
  border-radius: 2px;
  background: linear-gradient(135deg, var(--orange), var(--yellow));
}

#contact ul li:hover,
#sitemap ul li:hover,
#links ul li:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-shadow);
  color: var(--text);
}

#sitemap ul,
#links ul {
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}

#sitemap ul li,
#links ul li {
  padding: 10px 14px 10px 36px;
}

#sitemap ul li a,
#links ul li a {
  color: var(--text-soft);
  font-weight: 500;
}

#sitemap ul li a:hover,
#links ul li a:hover {
  color: var(--orange-dark);
}

/* ============ Footer ============ */
footer {
  padding: 40px clamp(16px, 4vw, 40px) 60px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-mute);
  background: linear-gradient(180deg, transparent, rgba(255, 107, 53, 0.06));
  border-top: 1px solid var(--border);
}

footer p {
  margin: 0 0 8px;
  color: var(--text-mute);
}

footer a {
  color: var(--text-soft);
  margin: 0 4px;
}

footer a:hover {
  color: var(--orange);
}

/* ============ Back to top ============ */
.back-to-top {
  position: fixed;
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(14px, 3vw, 32px);
  z-index: 90;
  padding: 12px 18px;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: inherit;
  color: #fff;
  background: linear-gradient(135deg, var(--orange), var(--orange-light));
  border: none;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(255, 107, 53, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), visibility 0.35s, box-shadow 0.3s var(--ease);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(255, 107, 53, 0.55);
}

.back-to-top.is-visible,
body.scrolled .back-to-top {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Scroll reveal helper */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  header {
    gap: 12px;
  }

  header nav ul li a {
    padding: 6px 10px;
    font-size: 0.85rem;
  }

  .search {
    flex: 1 1 100%;
    order: 5;
  }
}

@media (max-width: 860px) {
  .menu-toggle {
    display: inline-block;
    margin-left: auto;
  }

  header nav {
    flex: 1 1 100%;
    order: 6;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.45s var(--ease), opacity 0.35s var(--ease);
  }

  header.nav-open nav {
    max-height: 520px;
    opacity: 1;
    padding-top: 8px;
  }

  header nav ul {
    flex-direction: column;
    gap: 2px;
  }

  header nav ul li a {
    display: block;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
  }

  .theme-toggle {
    padding: 10px 14px;
    font-size: 0.82rem;
  }

  main > section {
    border-radius: var(--radius);
  }

  .carousel figure {
    flex: 0 0 86%;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  header {
    padding: 10px 14px;
  }

  .brand {
    font-size: 1.05rem;
  }

  .brand svg {
    width: 38px;
    height: 38px;
  }

  .search {
    flex-wrap: wrap;
  }

  .search input {
    flex: 1 1 100%;
  }

  .search button {
    flex: 1 1 100%;
  }

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

  main > section {
    padding: 20px 16px;
  }

  h2 {
    padding-left: 14px;
  }

  h2::before {
    width: 5px;
  }

  #contact ul {
    grid-template-columns: 1fr;
  }

  #sitemap ul,
  #links ul {
    grid-template-columns: repeat(2, 1fr);
  }

  #sitemap ul li,
  #links ul li {
    padding: 9px 12px 9px 30px;
    font-size: 0.86rem;
  }

  #sitemap ul li::before,
  #links ul li::before {
    left: 12px;
    width: 6px;
    height: 6px;
  }

  blockquote {
    padding: 16px 18px;
  }

  main article {
    padding: 16px;
  }

  .back-to-top {
    padding: 10px 14px;
    font-size: 0.8rem;
  }
}

@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 print {
  header,
  footer,
  .back-to-top,
  .carousel,
  .search,
  .theme-toggle,
  .menu-toggle {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  main > section {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
  }
}