:root {
  --primary: #2b6cb0;
  --primary-light: #4299e1;
  --primary-dark: #1a365d;
  --accent: #f6ad55;
  --accent-deep: #ed8936;
  --pink: #ed64a6;
  --purple: #805ad5;
  --bg: #f7fafc;
  --bg-alt: #edf2f7;
  --surface: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --text: #1a202c;
  --text-soft: #4a5568;
  --text-muted: #718096;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(26, 54, 93, 0.08);
  --shadow-md: 0 6px 20px rgba(26, 54, 93, 0.1);
  --shadow-lg: 0 16px 40px rgba(26, 54, 93, 0.14);
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --grad-hero: linear-gradient(135deg, #ebf4ff 0%, #e6fffa 45%, #fefcbf 100%);
  --grad-accent: linear-gradient(135deg, #2b6cb0 0%, #805ad5 50%, #ed64a6 100%);
  --grad-btn: linear-gradient(135deg, #4299e1 0%, #2b6cb0 100%);
  --grad-soft: linear-gradient(135deg, rgba(66, 153, 225, 0.12), rgba(128, 90, 213, 0.12));
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

[data-theme="dark"] {
  --primary: #63b3ed;
  --primary-light: #90cdf4;
  --primary-dark: #ebf4ff;
  --accent: #f6ad55;
  --accent-deep: #ed8936;
  --bg: #0f1623;
  --bg-alt: #16202f;
  --surface: #1a2638;
  --surface-glass: rgba(26, 38, 56, 0.72);
  --text: #e8eef7;
  --text-soft: #b6c2d4;
  --text-muted: #8a99ad;
  --border: #2a3a52;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.55);
  --grad-hero: linear-gradient(135deg, #16202f 0%, #1c2b45 45%, #2a2140 100%);
  --grad-soft: linear-gradient(135deg, rgba(99, 179, 237, 0.14), rgba(128, 90, 213, 0.16));
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 8% 4%, rgba(66, 153, 225, 0.1), transparent 42%),
    radial-gradient(circle at 92% 12%, rgba(237, 100, 166, 0.09), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(246, 173, 85, 0.08), transparent 45%);
  background-attachment: fixed;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

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

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

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

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.35;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(1.6rem, 4vw, 2.5rem);
}

h2 {
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  position: relative;
  padding-left: 18px;
  margin-bottom: 1rem;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 6px;
  border-radius: 6px;
  background: var(--grad-accent);
}

h3 {
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  margin: 1.4rem 0 0.6rem;
  color: var(--primary-dark);
}

[data-theme="dark"] h3 {
  color: var(--primary-light);
}

h4 {
  font-size: 1.05rem;
  margin: 1rem 0 0.5rem;
  color: var(--text-soft);
}

p {
  margin-bottom: 1rem;
  color: var(--text-soft);
}

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

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

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -60px;
  left: 16px;
  z-index: 2000;
  padding: 10px 20px;
  background: var(--primary);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  transition: top var(--transition);
}

.skip-link:focus {
  top: 0;
  color: #fff;
}

/* ===== HEADER ===== */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), box-shadow var(--transition);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand svg {
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(43, 108, 176, 0.35);
  transition: transform var(--transition);
}

.brand:hover svg {
  transform: rotate(-6deg) scale(1.06);
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

#site-header nav {
  flex: 1 1 auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav-list a {
  display: inline-block;
  padding: 8px 12px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-soft);
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--primary);
  background: var(--grad-soft);
  transform: translateY(-1px);
}

.nav-list a:hover::after,
.nav-list a:focus-visible::after {
  transform: scaleX(1);
}

.site-search {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.site-search input {
  width: 180px;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), width var(--transition);
}

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

.site-search input:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.2);
  width: 220px;
}

.site-search button {
  padding: 8px 18px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  background: var(--grad-btn);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.site-search button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(43, 108, 176, 0.35);
  filter: brightness(1.06);
}

.site-search button:active {
  transform: translateY(0);
}

#menu-toggle,
#theme-toggle {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--text);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

#menu-toggle {
  display: none;
}

#menu-toggle:hover,
#theme-toggle:hover {
  transform: rotate(12deg) scale(1.08);
  background: var(--grad-soft);
  box-shadow: var(--shadow-sm);
}

/* ===== MAIN LAYOUT ===== */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

main > section {
  margin-top: 48px;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
  animation: fadeUp 0.7s cubic-bezier(0.4, 0, 0.2, 1) both;
}

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

main > section:nth-of-type(odd) {
  background-image: var(--grad-soft);
  background-blend-mode: overlay;
}

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

/* ===== HERO ===== */
#hero {
  margin-top: 32px;
  padding: 48px 40px;
  background: var(--grad-hero);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

#hero::before,
#hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
  pointer-events: none;
}

#hero::before {
  width: 300px;
  height: 300px;
  top: -120px;
  right: -80px;
  background: radial-gradient(circle, rgba(237, 100, 166, 0.5), transparent 70%);
}

#hero::after {
  width: 260px;
  height: 260px;
  bottom: -100px;
  left: -60px;
  background: radial-gradient(circle, rgba(66, 153, 225, 0.55), transparent 70%);
}

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

#hero-title {
  margin-bottom: 18px;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  text-shadow: none;
}

.lead {
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  color: var(--text-soft);
  max-width: 820px;
  margin-bottom: 28px;
}

.hero-banner {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.hero-banner:hover {
  transform: translateY(-4px) scale(1.008);
  box-shadow: var(--shadow-lg);
}

.hero-banner svg {
  width: 100%;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.hero-stats li {
  padding: 18px 12px;
  text-align: center;
  font-size: 0.92rem;
  color: var(--text-soft);
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.hero-stats li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.hero-stats strong {
  display: block;
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  font-weight: 800;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  margin-bottom: 2px;
}

/* ===== BREADCRUMB & ANCHOR NAV ===== */
.breadcrumb {
  margin-top: 24px;
  font-size: 0.9rem;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--text-muted);
}

.breadcrumb a {
  padding: 2px 6px;
  border-radius: 6px;
  transition: background var(--transition);
}

.breadcrumb a:hover {
  background: var(--grad-soft);
}

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

.anchor-nav {
  position: sticky;
  top: 74px;
  z-index: 900;
  margin-top: 24px;
  padding: 10px 14px;
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  backdrop-filter: blur(14px) saturate(180%);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  scrollbar-width: none;
}

.anchor-nav::-webkit-scrollbar {
  display: none;
}

.anchor-nav ul {
  display: flex;
  gap: 6px;
  white-space: nowrap;
}

.anchor-nav a {
  display: inline-block;
  padding: 6px 16px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-soft);
  border-radius: 999px;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

.anchor-nav a:hover,
.anchor-nav a:focus-visible {
  color: #fff;
  background: var(--grad-btn);
  transform: translateY(-1px);
}

/* ===== LISTS IN SECTIONS ===== */
section ul:not(.hero-stats):not(.nav-list):not(.news-list):not(.anchor-nav ul) {
  display: grid;
  gap: 10px;
  margin: 12px 0 8px;
}

#products ul li,
#sitemap ul li {
  position: relative;
  padding: 12px 16px 12px 44px;
  color: var(--text-soft);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

#products ul li::before,
#sitemap ul li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  width: 10px;
  height: 10px;
  transform: translateY(-50%) rotate(45deg);
  border-radius: 3px;
  background: var(--grad-accent);
}

#products ul li:hover,
#sitemap ul li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
  border-color: var(--primary-light);
  background: var(--surface);
}

/* ===== BLOCKQUOTE ===== */
blockquote {
  margin: 20px 0;
  padding: 4px 0 4px 24px;
  border-left: 4px solid transparent;
  border-image: var(--grad-accent) 1;
  display: grid;
  gap: 12px;
}

blockquote p {
  position: relative;
  padding: 14px 18px;
  margin: 0;
  font-style: italic;
  color: var(--text-soft);
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

blockquote p:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

/* ===== NEWS ===== */
.news-list {
  display: grid;
  gap: 10px;
}

.news-list li {
  padding: 14px 18px;
  color: var(--text-soft);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.news-list li:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: var(--primary-light);
}

.news-list time {
  display: inline-block;
  margin-right: 10px;
  padding: 2px 10px;
  font-weight: 600;
  color: #fff;
  background: var(--grad-btn);
  border-radius: 999px;
  font-size: 0.78rem;
}

/* ===== ARTICLES ===== */
#articles article {
  padding: 22px;
  margin-bottom: 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#articles article::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--grad-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

#articles article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

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

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

#articles article p {
  margin-bottom: 8px;
}

#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--grad-soft);
  border: 1px solid var(--border);
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}

#articles article a::after {
  content: "→";
  transition: transform var(--transition);
}

#articles article a:hover {
  color: #fff;
  background: var(--grad-btn);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(43, 108, 176, 0.3);
}

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

/* ===== HOWTO ===== */
#howto ol {
  counter-reset: step;
  display: grid;
  gap: 12px;
  margin: 16px 0;
}

#howto ol li {
  counter-increment: step;
  position: relative;
  padding: 16px 18px 16px 62px;
  color: var(--text-soft);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#howto ol li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  color: #fff;
  background: var(--grad-btn);
  border-radius: 50%;
  box-shadow: 0 4px 10px rgba(43, 108, 176, 0.3);
}

#howto ol li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
  border-color: var(--primary-light);
}

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

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

#faq details[open] {
  border-color: var(--primary-light);
  background: var(--surface);
}

#faq summary {
  position: relative;
  padding: 16px 52px 16px 20px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition), background var(--transition);
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--primary);
  background: var(--grad-soft);
  border-radius: 50%;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}

#faq details[open] summary {
  color: var(--primary);
  background: var(--grad-soft);
}

#faq details[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
  color: #fff;
  background: var(--grad-btn);
}

#faq details p {
  padding: 0 20px 18px;
  margin: 0;
  color: var(--text-soft);
  animation: fadeUp 0.4s ease both;
}

/* ===== CONTACT ===== */
#contact address {
  font-style: normal;
  display: grid;
  gap: 10px;
  padding: 22px;
  margin-bottom: 12px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

#contact address p {
  margin: 0;
  padding-left: 26px;
  position: relative;
  color: var(--text-soft);
}

#contact address p::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--grad-accent);
}

/* ===== FOOTER ===== */
footer {
  margin-top: 60px;
  padding: 40px 20px;
  text-align: center;
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
  color: var(--text-soft);
}

footer p {
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

footer a {
  font-weight: 500;
}

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

/* ===== BACK TO TOP ===== */
#back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 1100;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  background: var(--grad-btn);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.9);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), box-shadow var(--transition);
}

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

#back-to-top:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: var(--shadow-lg);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 980px) {
  .header-inner {
    gap: 10px;
  }

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

  .site-search input:focus {
    width: 170px;
  }

  .nav-list a {
    padding: 8px 9px;
    font-size: 0.86rem;
  }
}

@media (max-width: 820px) {
  .header-inner {
    padding: 10px 16px;
  }

  #menu-toggle {
    display: inline-flex;
  }

  #site-header nav {
    order: 10;
    flex-basis: 100%;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.35s ease, opacity 0.3s ease, margin 0.3s ease;
  }

  #site-header nav.open {
    max-height: 420px;
    opacity: 1;
    margin-top: 8px;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-list a {
    display: block;
    padding: 11px 14px;
    font-size: 0.95rem;
  }

  .nav-list a::after {
    display: none;
  }

  .site-search {
    margin-left: auto;
  }

  .site-search input {
    width: 120px;
  }

  .site-search input:focus {
    width: 140px;
  }

  .site-search button {
    padding: 8px 12px;
  }

  main {
    padding: 0 14px 48px;
  }

  main > section {
    margin-top: 28px;
    padding: 22px 18px;
    border-radius: var(--radius);
  }

  #hero {
    margin-top: 20px;
    padding: 30px 20px;
  }

  .anchor-nav {
    top: 66px;
    padding: 8px 10px;
  }

  .hero-stats {
    gap: 10px;
  }

  .hero-stats li {
    padding: 14px 6px;
    font-size: 0.8rem;
  }
}

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

  .brand-name {
    font-size: 1.05rem;
  }

  .brand svg {
    width: 34px;
    height: 34px;
  }

  .site-search input {
    width: 96px;
    padding: 7px 11px;
  }

  .site-search input:focus {
    width: 116px;
  }

  .site-search button {
    padding: 7px 10px;
    font-size: 0.82rem;
  }

  #menu-toggle,
  #theme-toggle {
    width: 36px;
    height: 36px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .hero-stats li {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    font-size: 0.85rem;
  }

  .hero-stats strong {
    font-size: 1.35rem;
    margin-bottom: 0;
  }

  blockquote {
    padding-left: 12px;
  }

  #articles article {
    padding: 16px;
  }

  #howto ol li {
    padding: 14px 14px 14px 54px;
  }

  #contact address {
    padding: 16px;
  }

  #back-to-top {
    right: 14px;
    bottom: 14px;
    width: 42px;
    height: 42px;
  }
}

@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 {
  #site-header,
  .anchor-nav,
  #back-to-top,
  .site-search,
  footer {
    display: none !important;
  }

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

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