:root {
  --color-primary: #8B3A3A;
  --color-primary-light: #A85555;
  --color-primary-dark: #6B2A2A;
  --color-secondary: #3A5A40;
  --color-accent: #C9A227;
  --color-ink: #4A4E69;
  --color-bg: #FDF8F3;
  --color-bg-alt: #F5E6D3;
  --color-surface: rgba(255, 255, 255, 0.72);
  --color-surface-solid: #FFFFFF;
  --color-text: #2B2320;
  --color-text-soft: #5C504A;
  --color-text-muted: #8A7D75;
  --color-border: rgba(139, 58, 58, 0.16);
  --color-shadow: rgba(74, 45, 35, 0.12);
  --gradient-hero: linear-gradient(135deg, #8B3A3A 0%, #A85555 42%, #C9A227 100%);
  --gradient-accent: linear-gradient(120deg, #8B3A3A 0%, #3A5A40 100%);
  --gradient-soft: linear-gradient(160deg, rgba(245, 230, 211, 0.85), rgba(253, 248, 243, 0.6));
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --blur-glass: saturate(160%) blur(14px);
  --shadow-sm: 0 2px 8px var(--color-shadow);
  --shadow-md: 0 8px 24px var(--color-shadow);
  --shadow-lg: 0 18px 48px rgba(74, 45, 35, 0.18);
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --max-width: 1200px;
  --transition: 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #17120F;
    --color-bg-alt: #221A16;
    --color-surface: rgba(40, 30, 26, 0.66);
    --color-surface-solid: #241C18;
    --color-text: #F2E7DC;
    --color-text-soft: #C9BAB0;
    --color-text-muted: #9C8C82;
    --color-border: rgba(201, 162, 39, 0.22);
    --color-shadow: rgba(0, 0, 0, 0.4);
    --gradient-hero: linear-gradient(135deg, #4A1F1F 0%, #6B2A2A 45%, #7A5A14 100%);
    --gradient-soft: linear-gradient(160deg, rgba(58, 44, 36, 0.85), rgba(23, 18, 15, 0.6));
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.55);
  }
}

html[data-theme="dark"] {
  --color-bg: #17120F;
  --color-bg-alt: #221A16;
  --color-surface: rgba(40, 30, 26, 0.66);
  --color-surface-solid: #241C18;
  --color-text: #F2E7DC;
  --color-text-soft: #C9BAB0;
  --color-text-muted: #9C8C82;
  --color-border: rgba(201, 162, 39, 0.22);
  --color-shadow: rgba(0, 0, 0, 0.4);
  --gradient-hero: linear-gradient(135deg, #4A1F1F 0%, #6B2A2A 45%, #7A5A14 100%);
  --gradient-soft: linear-gradient(160deg, rgba(58, 44, 36, 0.85), rgba(23, 18, 15, 0.6));
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.55);
}

html[data-theme="light"] {
  --color-bg: #FDF8F3;
  --color-bg-alt: #F5E6D3;
  --color-surface: rgba(255, 255, 255, 0.72);
  --color-surface-solid: #FFFFFF;
  --color-text: #2B2320;
  --color-text-soft: #5C504A;
  --color-text-muted: #8A7D75;
  --color-border: rgba(139, 58, 58, 0.16);
  --color-shadow: rgba(74, 45, 35, 0.12);
  --gradient-hero: linear-gradient(135deg, #8B3A3A 0%, #A85555 42%, #C9A227 100%);
  --gradient-soft: linear-gradient(160deg, rgba(245, 230, 211, 0.85), rgba(253, 248, 243, 0.6));
  --shadow-sm: 0 2px 8px var(--color-shadow);
  --shadow-md: 0 8px 24px var(--color-shadow);
  --shadow-lg: 0 18px 48px rgba(74, 45, 35, 0.18);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(201, 162, 39, 0.08), transparent 42%),
    radial-gradient(circle at 88% 92%, rgba(139, 58, 58, 0.08), transparent 46%);
  background-attachment: fixed;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

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

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

li {
  margin: 0.35em 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.35;
  margin: 0 0 0.6em;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(1.65rem, 4vw, 2.6rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  font-weight: 600;
  color: var(--color-primary);
}

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

time {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-family: var(--font-sans);
}

blockquote {
  margin: 1.2em 0;
  padding: 1em 1.4em;
  border-left: 4px solid var(--color-accent);
  background: var(--gradient-soft);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
}

blockquote p {
  margin: 0;
  font-style: italic;
  color: var(--color-text-soft);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: var(--color-primary);
  color: #F5E6D3;
}

/* ============ HEADER ============ */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), box-shadow var(--transition);
}

.brand-bar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem 1.25rem 0.4rem;
}

.brand-bar > a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.9rem;
  color: inherit;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  letter-spacing: 0.08em;
}

.brand-slogan {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
}

#site-header nav[aria-label="主导航"] {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.2rem 1.25rem 0.7rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1rem;
}

#main-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.35rem;
  flex: 1 1 100%;
  order: 3;
}

#main-nav li {
  margin: 0;
}

#main-nav a {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  font-size: 0.9rem;
  color: var(--color-text-soft);
  border-radius: var(--radius-pill);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

#main-nav a:hover,
#main-nav a:focus-visible {
  color: var(--color-primary);
  background: rgba(139, 58, 58, 0.1);
  transform: translateY(-1px);
}

#menu-toggle,
#theme-toggle {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  padding: 0.42rem 0.95rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface-solid);
  color: var(--color-text-soft);
  cursor: pointer;
  transition: all var(--transition);
}

#menu-toggle:hover,
#theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

#menu-toggle[aria-expanded="true"] {
  background: var(--color-primary);
  color: #F5E6D3;
  border-color: var(--color-primary);
}

#site-search {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex: 1 1 240px;
  order: 2;
}

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

#search-input {
  flex: 1;
  min-width: 0;
  padding: 0.45rem 0.9rem;
  font-size: 0.88rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface-solid);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  transition: border-color var(--transition), box-shadow var(--transition);
}

#search-input::placeholder {
  color: var(--color-text-muted);
}

#search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 58, 58, 0.15);
}

#site-search button[type="submit"] {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  color: #F5E6D3;
  background: var(--gradient-accent);
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

#site-search button[type="submit"]:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  filter: brightness(1.08);
}

#breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem 0.7rem;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

#breadcrumb li {
  margin: 0;
}

#breadcrumb li + li::before {
  content: "›";
  margin-right: 0.4rem;
  color: var(--color-text-muted);
}

#breadcrumb a {
  color: var(--color-text-muted);
}

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

/* ============ MAIN LAYOUT ============ */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

section {
  margin-bottom: 2.2rem;
  padding: 1.6rem 1.4rem;
  background: var(--color-surface);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

section:hover {
  box-shadow: var(--shadow-md);
}

section h2 {
  position: relative;
  padding-bottom: 0.5rem;
  margin-bottom: 1.1rem;
}

section h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
}

/* ============ HERO ============ */
#hero {
  background: var(--gradient-hero);
  border: none;
  color: #F5E6D3;
  position: relative;
  overflow: hidden;
  padding: 2.4rem 1.6rem;
}

#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.18), transparent 40%),
    radial-gradient(circle at 10% 90%, rgba(201, 162, 39, 0.22), transparent 45%);
  pointer-events: none;
}

#hero > * {
  position: relative;
  z-index: 1;
}

#hero h1 {
  color: #FFF8EF;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.22);
}

#hero > p {
  color: rgba(255, 248, 239, 0.92);
  font-size: 1.02rem;
  max-width: 62ch;
}

#banner-carousel {
  display: flex;
  gap: 1rem;
  margin: 1.8rem 0;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 0.6rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.4) transparent;
}

#banner-carousel::-webkit-scrollbar {
  height: 6px;
}

#banner-carousel::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-pill);
}

#banner-carousel figure {
  margin: 0;
  flex: 0 0 88%;
  scroll-snap-align: center;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

#banner-carousel figure:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

#banner-carousel svg {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

#banner-carousel figcaption {
  padding: 0.7rem 1rem;
  font-size: 0.88rem;
  color: rgba(255, 248, 239, 0.92);
  text-align: center;
}

#stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
  margin: 1.4rem 0 0;
  padding: 0;
}

#stats > div {
  margin: 0;
  padding: 1rem 0.8rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-md);
  transition: transform var(--transition), background var(--transition);
}

#stats > div:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.2);
}

#stats dt {
  font-size: 0.8rem;
  color: rgba(255, 248, 239, 0.82);
  letter-spacing: 0.06em;
}

#stats dd {
  margin: 0.25rem 0 0;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: #FFF8EF;
}

.counter {
  font-variant-numeric: tabular-nums;
}

/* ============ CONTENT CARDS ============ */
#about ul,
#services ul,
#products ul,
#howto ul,
#howto ol,
#sitemap ul,
#links ul {
  background: var(--gradient-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.2rem 1rem 2.2rem;
  margin: 1rem 0;
}

#about ul li::marker,
#products ul li::marker,
#services ul li::marker {
  color: var(--color-accent);
}

article {
  padding: 1.1rem 1.2rem;
  margin-bottom: 1rem;
  background: var(--color-surface-solid);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

article:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

article h3 {
  margin-bottom: 0.35rem;
}

article h3 a {
  color: var(--color-text);
}

article h3 a:hover {
  color: var(--color-primary);
}

article p {
  margin-bottom: 0.6rem;
}

article > p:last-child {
  margin-bottom: 0;
}

article > p:last-child a {
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-primary);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

article > p:last-child a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ============ FAQ ============ */
#faq details {
  background: var(--color-surface-solid);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 0.7rem;
  padding: 0.2rem 1rem;
  transition: box-shadow var(--transition), border-color var(--transition);
}

#faq details:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

#faq details[open] {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

#faq summary {
  cursor: pointer;
  padding: 0.85rem 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
  list-style: none;
  position: relative;
  padding-right: 2rem;
  transition: color var(--transition);
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--color-primary);
  transition: transform var(--transition);
}

#faq details[open] summary::after {
  content: "−";
}

#faq summary:hover {
  color: var(--color-primary);
}

#faq details p {
  padding: 0 0 0.9rem;
  margin: 0;
  font-size: 0.94rem;
  border-top: 1px dashed var(--color-border);
  padding-top: 0.8rem;
}

/* ============ CONTACT DL ============ */
#contact dl,
#meta-info dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem 1rem;
  margin: 1rem 0;
}

#contact dt,
#meta-info dt {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.9rem;
  padding-top: 0.5rem;
}

#contact dd,
#meta-info dd {
  margin: 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--color-border);
  color: var(--color-text-soft);
  font-size: 0.92rem;
}

#contact dd:last-of-type,
#meta-info dd:last-of-type {
  border-bottom: none;
}

#contact a {
  font-weight: 500;
}

/* ============ FOOTER ============ */
footer {
  background: linear-gradient(160deg, rgba(139, 58, 58, 0.92), rgba(58, 90, 64, 0.92));
  color: rgba(255, 248, 239, 0.9);
  padding: 2.2rem 1.25rem 5rem;
  text-align: center;
  font-size: 0.88rem;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.12), transparent 40%);
  pointer-events: none;
}

footer p {
  margin: 0.4rem 0;
  color: rgba(255, 248, 239, 0.9);
  position: relative;
}

footer a {
  color: #F5E6D3;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

footer a:hover {
  color: #FFFFFF;
  border-color: #FFFFFF;
}

/* ============ BACK TO TOP ============ */
#back-to-top {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  z-index: 120;
  padding: 0.6rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: #F5E6D3;
  background: var(--gradient-accent);
  border: none;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition), box-shadow var(--transition);
}

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

#back-to-top:hover {
  box-shadow: var(--shadow-lg);
  filter: brightness(1.08);
}

/* ============ SCROLL REVEAL ============ */
.js-reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: opacity, transform;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .js-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* ============ RESPONSIVE ============ */
@media (min-width: 640px) {
  #banner-carousel figure {
    flex: 0 0 62%;
  }

  #stats {
    grid-template-columns: repeat(4, 1fr);
  }

  #contact dl,
  #meta-info dl {
    grid-template-columns: minmax(120px, 180px) 1fr;
    align-items: start;
  }

  #contact dt,
  #meta-info dt {
    padding-top: 0;
    padding-bottom: 0.5rem;
  }

  #contact dd,
  #meta-info dd {
    border-bottom: 1px dashed var(--color-border);
  }
}

@media (min-width: 900px) {
  #site-header nav[aria-label="主导航"] {
    flex-wrap: nowrap;
    gap: 1rem;
  }

  #main-nav {
    flex: 1 1 auto;
    order: 1;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
  }

  #main-nav::-webkit-scrollbar {
    display: none;
  }

  #site-search {
    flex: 0 1 280px;
    order: 2;
  }

  #menu-toggle {
    display: none;
  }

  #theme-toggle {
    order: 3;
    flex-shrink: 0;
  }

  #banner-carousel figure {
    flex: 0 0 46%;
  }

  main {
    padding: 2rem 1.5rem 4rem;
  }

  section {
    padding: 2rem 2.2rem;
    margin-bottom: 2.6rem;
  }

  #hero {
    padding: 3.2rem 2.6rem;
  }

  article {
    padding: 1.3rem 1.6rem;
  }
}

@media (max-width: 899px) {
  #main-nav {
    display: none;
    flex-direction: column;
    background: var(--color-surface-solid);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    box-shadow: var(--shadow-md);
  }

  #main-nav.is-open {
    display: flex;
  }

  #main-nav a {
    display: block;
    padding: 0.6rem 0.9rem;
    border-radius: var(--radius-sm);
  }
}

@media (max-width: 420px) {
  body {
    font-size: 15px;
  }

  .brand-name {
    font-size: 1.3rem;
  }

  .brand-slogan {
    font-size: 0.74rem;
  }

  section {
    padding: 1.2rem 1rem;
    border-radius: var(--radius-md);
  }

  #hero {
    padding: 1.8rem 1.1rem;
  }

  #banner-carousel figure {
    flex: 0 0 92%;
  }

  #stats dd {
    font-size: 1.25rem;
  }
}

@media print {
  #site-header,
  #back-to-top,
  #banner-carousel,
  footer {
    display: none;
  }

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

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