:root {
  --primary: #e63946;
  --primary-dark: #c1121f;
  --primary-light: #ff6b6b;
  --secondary: #1a1a2e;
  --accent: #f4a261;
  --accent2: #e9c46a;
  --bg: #f8f9fa;
  --bg-alt: #ffffff;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --bg-glass-border: rgba(255, 255, 255, 0.4);
  --text: #1d1d1f;
  --text-secondary: #555;
  --text-muted: #888;
  --border: #e5e5e5;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.14);
  --shadow-glow: 0 0 24px rgba(230, 57, 70, 0.3);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

[data-theme="dark"] {
  --primary: #ff6b6b;
  --primary-dark: #e63946;
  --primary-light: #ff8e8e;
  --secondary: #e0e0e0;
  --accent: #f4a261;
  --accent2: #e9c46a;
  --bg: #0f0f1a;
  --bg-alt: #1a1a2e;
  --bg-card: #1e1e32;
  --bg-glass: rgba(26, 26, 46, 0.78);
  --bg-glass-border: rgba(255, 255, 255, 0.08);
  --text: #e8e8ed;
  --text-secondary: #a0a0b0;
  --text-muted: #6e6e80;
  --border: #2a2a40;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 24px rgba(255, 107, 107, 0.25);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  line-height: 1.35;
  font-weight: 700;
  color: var(--text);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.65rem; }
h3 { font-size: 1.25rem; }

p {
  margin-bottom: 1em;
  color: var(--text-secondary);
}

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

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* ============ HEADER ============ */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--bg-glass-border);
  transition: background var(--transition), box-shadow var(--transition);
}

#site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
  color: var(--text);
}

.logo svg {
  border-radius: 50%;
  transition: transform var(--transition), box-shadow var(--transition);
}

.logo:hover svg {
  transform: rotate(-8deg) scale(1.08);
  box-shadow: var(--shadow-glow);
}

.logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}

#main-nav {
  flex: 1;
  min-width: 0;
}

#main-nav ul {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: wrap;
}

#main-nav a {
  display: block;
  padding: 0.45rem 0.7rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  position: relative;
  transition: all var(--transition);
}

#main-nav a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width var(--transition);
}

#main-nav a:hover {
  color: var(--primary);
  background: rgba(230, 57, 70, 0.08);
}

#main-nav a:hover::after {
  width: 60%;
}

#site-search {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition);
  flex-shrink: 0;
}

#site-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
}

#site-search input {
  border: none;
  outline: none;
  background: transparent;
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  color: var(--text);
  width: 180px;
  font-family: var(--font);
}

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

#site-search button {
  border: none;
  background: transparent;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: background var(--transition);
}

#site-search button:hover {
  background: rgba(230, 57, 70, 0.1);
}

#mobile-menu-btn,
#theme-toggle {
  display: none;
  border: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.45rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

#mobile-menu-btn:hover,
#theme-toggle:hover {
  border-color: var(--primary);
  background: rgba(230, 57, 70, 0.08);
}

#theme-toggle {
  display: flex;
}

/* ============ BREADCRUMB ============ */
#breadcrumb {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
}

#breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

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

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

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

#breadcrumb [aria-current="page"] {
  color: var(--primary);
  font-weight: 600;
}

/* ============ MAIN ============ */
main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

section {
  margin-bottom: 3.5rem;
  scroll-margin-top: 80px;
}

section > h2 {
  font-size: 1.65rem;
  margin-bottom: 1.2rem;
  padding-bottom: 0.6rem;
  position: relative;
  display: inline-block;
}

section > h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), transparent);
  border-radius: 3px;
}

section > h3 {
  margin: 1.8rem 0 0.8rem;
  color: var(--text);
  padding-left: 0.8rem;
  border-left: 4px solid var(--primary);
}

/* ============ HERO ============ */
#hero {
  position: relative;
  margin-top: 1.5rem;
  padding: 3rem 2rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #e63946 100%);
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

#hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(244, 162, 97, 0.35) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
}

#hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(230, 57, 70, 0.4) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-30px, 20px) scale(1.1); }
}

#hero h1 {
  position: relative;
  z-index: 2;
  font-size: 2.2rem;
  color: #fff;
  margin-bottom: 1rem;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 0.8s ease both;
}

.hero-sub {
  position: relative;
  z-index: 2;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1rem;
  max-width: 800px;
  margin-bottom: 2rem;
  animation: fadeInUp 0.8s 0.15s ease both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
  animation: fadeInUp 0.8s 0.3s ease both;
}

.stat-item {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  transition: transform var(--transition), background var(--transition);
}

.stat-item:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.16);
}

.stat-number {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent2);
  line-height: 1.2;
}

.stat-label {
  display: block;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 0.25rem;
}

.banner-carousel {
  position: relative;
  z-index: 2;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.8s 0.45s ease both;
}

.carousel-slide {
  display: none;
}

.carousel-slide.active {
  display: block;
  animation: slideFade 0.6s ease;
}

@keyframes slideFade {
  from { opacity: 0; transform: scale(1.03); }
  to { opacity: 1; transform: scale(1); }
}

.carousel-slide svg {
  width: 100%;
  height: auto;
  display: block;
}

.carousel-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  z-index: 3;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.6);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition);
}

.dot.active {
  background: var(--primary);
  border-color: var(--primary);
  width: 28px;
  border-radius: 5px;
}

.dot:hover {
  border-color: #fff;
}

/* ============ CARDS / CONTENT SECTIONS ============ */
#brand-intro,
#products,
#solutions,
#applications,
#cases,
#news,
#articles,
#faq,
#howto,
#contact,
#sitemap,
#privacy,
#disclaimer,
#copyright,
#author-info,
#friendly-links {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), transform var(--transition), background var(--transition);
}

#brand-intro:hover,
#products:hover,
#solutions:hover,
#applications:hover,
#cases:hover,
#news:hover,
#articles:hover,
#faq:hover,
#howto:hover,
#contact:hover {
  box-shadow: var(--shadow-md);
}

/* ============ NEWS / ARTICLES ============ */
#news article,
#articles article {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

#news article::before,
#articles article::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

#news article:hover,
#articles article:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

#news article:hover::before,
#articles article:hover::before {
  transform: scaleY(1);
}

#news article h3,
#articles article h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
  color: var(--text);
}

#news time,
#articles time {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  padding: 0.15rem 0.6rem;
  background: rgba(230, 57, 70, 0.08);
  border-radius: var(--radius-sm);
}

#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 600;
  font-size: 0.88rem;
  margin-top: 0.5rem;
  transition: gap var(--transition);
}

#articles article a:hover {
  gap: 0.6rem;
}

/* ============ FAQ ============ */
#faq details {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: all var(--transition);
}

#faq details[open] {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.08);
}

#faq summary {
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  list-style: none;
  transition: background var(--transition);
  position: relative;
}

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

#faq summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform var(--transition);
  line-height: 1;
}

#faq details[open] summary::after {
  transform: rotate(45deg);
}

#faq summary:hover {
  background: rgba(230, 57, 70, 0.05);
}

#faq details p {
  padding: 0 1.25rem 1.25rem;
  margin: 0;
  font-size: 0.92rem;
  animation: fadeInUp 0.3s ease;
}

/* ============ HOWTO ============ */
#howto h3 {
  margin-top: 1.5rem;
}

#howto h3:first-of-type {
  margin-top: 0;
}

/* ============ CONTACT ============ */
#contact address {
  font-style: normal;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

#contact address p {
  margin-bottom: 0.6rem;
}

#contact address p:last-child {
  margin-bottom: 0;
}

#contact address strong {
  color: var(--text);
}

/* ============ SITEMAP / LINKS ============ */
#sitemap ul,
#friendly-links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

#sitemap li a,
#friendly-links li a {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

#sitemap li a:hover,
#friendly-links li a:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* ============ FOOTER ============ */
footer {
  background: linear-gradient(180deg, var(--secondary) 0%, #0d0d18 100%);
  color: #ccc;
  margin-top: 2rem;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent2), var(--primary));
  background-size: 300% 100%;
  animation: gradientMove 4s linear infinite;
}

@keyframes gradientMove {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.footer-col h3 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 1rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-col p {
  color: #999;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col ul a {
  color: #999;
  font-size: 0.85rem;
  transition: all var(--transition);
  display: inline-block;
}

.footer-col ul a:hover {
  color: var(--primary-light);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.25rem 1.5rem;
  text-align: center;
}

.footer-bottom p {
  color: #777;
  font-size: 0.8rem;
  margin: 0;
}

.footer-bottom a {
  color: var(--primary-light);
}

/* ============ BACK TO TOP ============ */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md), var(--shadow-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.8);
  transition: all var(--transition);
  z-index: 999;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

#back-to-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: var(--shadow-lg), 0 0 32px rgba(230, 57, 70, 0.5);
}

#back-to-top:active {
  transform: translateY(-2px) scale(0.98);
}

/* ============ SCROLL ANIMATIONS ============ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .header-inner {
    gap: 0.6rem;
  }

  #main-nav a {
    padding: 0.4rem 0.5rem;
    font-size: 0.82rem;
  }

  #site-search input {
    width: 140px;
  }

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

@media (max-width: 768px) {
  body {
    font-size: 15px;
  }

  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.3rem; }
  h3 { font-size: 1.1rem; }

  section > h2 {
    font-size: 1.3rem;
  }

  .header-inner {
    padding: 0.6rem 1rem;
    flex-wrap: nowrap;
  }

  .logo-text {
    font-size: 1rem;
  }

  #main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-card);
    box-shadow: var(--shadow-lg);
    padding: 5rem 1.5rem 2rem;
    transition: right var(--transition);
    z-index: 1001;
    overflow-y: auto;
  }

  #main-nav.open {
    right: 0;
  }

  #main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }

  #main-nav a {
    padding: 0.7rem 1rem;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
  }

  #main-nav a::after {
    display: none;
  }

  #main-nav a:hover {
    background: rgba(230, 57, 70, 0.1);
  }

  #mobile-menu-btn {
    display: flex;
    order: 3;
    margin-left: auto;
  }

  #theme-toggle {
    order: 4;
  }

  #site-search {
    order: 5;
    width: 100%;
    margin-top: 0.5rem;
  }

  #site-search input {
    width: 100%;
    flex: 1;
  }

  #hero {
    padding: 2rem 1.25rem;
    border-radius: var(--radius-lg);
  }

  #hero h1 {
    font-size: 1.5rem;
  }

  .hero-sub {
    font-size: 0.9rem;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .stat-number {
    font-size: 1.4rem;
  }

  .stat-label {
    font-size: 0.72rem;
  }

  #brand-intro,
  #products,
  #solutions,
  #applications,
  #cases,
  #news,
  #articles,
  #faq,
  #howto,
  #contact,
  #sitemap,
  #privacy,
  #disclaimer,
  #copyright,
  #author-info,
  #friendly-links {
    padding: 1.25rem;
  }

  #news article,
  #articles article {
    padding: 1rem 1.1rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 2rem 1.25rem 1.5rem;
  }

  #back-to-top {
    bottom: 1.25rem;
    right: 1.25rem;
    width: 42px;
    height: 42px;
  }

  main {
    padding: 0 1rem 2rem;
  }

  #breadcrumb {
    padding: 0.6rem 1rem;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    grid-template-columns: 1fr 1fr;
  }

  .stat-item {
    padding: 0.75rem 0.5rem;
  }

  .stat-number {
    font-size: 1.2rem;
  }

  #hero h1 {
    font-size: 1.3rem;
  }

  .carousel-dots {
    bottom: 0.6rem;
  }

  .dot {
    width: 8px;
    height: 8px;
  }

  .dot.active {
    width: 22px;
  }
}

/* ============ ACCESSIBILITY ============ */
@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;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

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

/* ============ PRINT ============ */
@media print {
  #site-header,
  #back-to-top,
  #mobile-menu-btn,
  #theme-toggle,
  #site-search,
  .carousel-dots,
  footer::before {
    display: none !important;
  }

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

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