:root {
  --primary: #6d28d9;
  --primary-dark: #4c1d95;
  --primary-light: #8b5cf6;
  --accent: #f9a8d4;
  --accent-strong: #ec4899;
  --bg: #f7f5ff;
  --bg-soft: #ffffff;
  --bg-alt: #f0ecfd;
  --text: #1f1733;
  --text-soft: #5b5470;
  --text-mute: #8a83a0;
  --border: rgba(109, 40, 217, 0.12);
  --card-bg: rgba(255, 255, 255, 0.72);
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.65);
  --shadow-sm: 0 2px 10px rgba(76, 29, 149, 0.08);
  --shadow-md: 0 10px 30px rgba(76, 29, 149, 0.12);
  --shadow-lg: 0 20px 50px rgba(76, 29, 149, 0.18);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --gradient-banner: linear-gradient(135deg, #6d28d9 0%, #8b5cf6 45%, #ec4899 100%);
  --gradient-soft: linear-gradient(135deg, rgba(109, 40, 217, 0.08), rgba(236, 72, 153, 0.08));
  --max-width: 1240px;
  --transition: 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark"],
body.dark-mode {
  --primary: #a78bfa;
  --primary-dark: #7c3aed;
  --primary-light: #c4b5fd;
  --accent: #f472b6;
  --accent-strong: #ec4899;
  --bg: #0f0a1e;
  --bg-soft: #171029;
  --bg-alt: #1d1435;
  --text: #f3efff;
  --text-soft: #c4bbdd;
  --text-mute: #8f86a8;
  --border: rgba(167, 139, 250, 0.18);
  --card-bg: rgba(29, 20, 53, 0.72);
  --glass-bg: rgba(23, 16, 41, 0.6);
  --glass-border: rgba(167, 139, 250, 0.2);
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.55);
  --gradient-banner: linear-gradient(135deg, #3b1d7a 0%, #6d28d9 45%, #be185d 100%);
  --gradient-soft: linear-gradient(135deg, rgba(167, 139, 250, 0.12), rgba(236, 72, 153, 0.12));
}

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

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(139, 92, 246, 0.12), transparent 42%),
    radial-gradient(circle at 88% 22%, rgba(236, 72, 153, 0.1), transparent 40%),
    radial-gradient(circle at 50% 92%, rgba(109, 40, 217, 0.08), transparent 45%);
  background-attachment: fixed;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

h1 {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  position: relative;
  padding-left: 1.1em;
}

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

h3 {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
}

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

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

li {
  margin-bottom: 0.4em;
  color: var(--text-soft);
}

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

.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;
}

/* ================= HEADER ================= */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 22px;
  padding: 12px clamp(16px, 4vw, 40px);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), box-shadow var(--transition);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  box-shadow: 0 6px 18px rgba(109, 40, 217, 0.35);
  transition: transform var(--transition);
}

.brand:hover .logo {
  transform: rotate(-8deg) scale(1.06);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-text strong {
  font-size: 1.15rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--primary), var(--accent-strong));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.brand-text span {
  font-size: 0.72rem;
  color: var(--text-mute);
  letter-spacing: 0.02em;
}

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

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

#main-nav li {
  margin: 0;
}

#main-nav a {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-soft);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

#main-nav a:hover,
#main-nav a:focus-visible {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent-strong));
  transform: translateY(-2px);
}

#site-search {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

#site-search input {
  width: 180px;
  padding: 9px 16px;
  font-size: 0.88rem;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  outline: none;
  transition: width var(--transition), border-color var(--transition), box-shadow var(--transition);
}

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

#site-search input:focus {
  width: 220px;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.18);
}

#site-search button,
#menu-toggle,
#dark-toggle {
  padding: 9px 18px;
  font-size: 0.88rem;
  font-weight: 700;
  font-family: inherit;
  color: #fff;
  cursor: pointer;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--accent-strong));
  box-shadow: 0 6px 16px rgba(109, 40, 217, 0.28);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

#site-search button:hover,
#menu-toggle:hover,
#dark-toggle:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
  box-shadow: 0 10px 24px rgba(109, 40, 217, 0.36);
}

#site-search button:active,
#menu-toggle:active,
#dark-toggle:active {
  transform: translateY(0);
}

#dark-toggle {
  background: var(--bg-soft);
  color: var(--primary);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

#dark-toggle[aria-pressed="true"] {
  background: linear-gradient(135deg, var(--primary), var(--accent-strong));
  color: #fff;
}

#menu-toggle {
  display: none;
}

/* ================= BREADCRUMB ================= */
#breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px clamp(16px, 4vw, 40px) 0;
}

#breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.82rem;
}

#breadcrumb li {
  margin: 0;
  color: var(--text-mute);
}

#breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--text-mute);
  opacity: 0.6;
}

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

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

/* ================= MAIN LAYOUT ================= */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px) 60px;
}

main > section {
  margin-top: clamp(36px, 6vw, 72px);
  animation: fadeUp 0.7s ease both;
  animation-timeline: view();
  animation-range: entry 0% entry 60%;
}

@supports not (animation-timeline: view()) {
  main > section {
    animation: none;
  }
}

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

/* ================= HERO ================= */
#hero {
  position: relative;
  margin-top: clamp(24px, 4vw, 44px);
  padding: clamp(28px, 5vw, 56px) clamp(20px, 4vw, 52px);
  border-radius: var(--radius-xl);
  background: var(--gradient-banner);
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}

#hero::before,
#hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  z-index: -1;
}

#hero::before {
  width: 380px;
  height: 380px;
  top: -140px;
  right: -80px;
  background: rgba(249, 168, 212, 0.55);
}

#hero::after {
  width: 320px;
  height: 320px;
  bottom: -160px;
  left: -60px;
  background: rgba(255, 255, 255, 0.25);
}

#hero h1 {
  color: #fff;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.22);
  max-width: 22em;
}

#hero .lead {
  max-width: 62em;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(0.95rem, 1.6vw, 1.05rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 26px 0 32px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 30px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: 999px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.btn-primary {
  color: var(--primary);
  background: #fff;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.22);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  color: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  color: var(--primary);
  background: #fff;
  transform: translateY(-3px);
}

/* Carousel */
.hero-carousel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
}

.hero-carousel .slide {
  grid-area: 1 / 1;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: scale(1.03);
  transition: opacity 0.8s ease, transform 0.8s ease, visibility 0.8s;
}

.hero-carousel .slide.active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  position: relative;
  z-index: 2;
}

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

.hero-carousel figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 18px 22px;
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  font-weight: 600;
  color: #fff;
  background: linear-gradient(0deg, rgba(15, 10, 30, 0.78), transparent);
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.stats li {
  margin: 0;
  padding: 18px 12px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-md);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: transform var(--transition), background var(--transition);
}

.stats li:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.24);
}

.stats .num {
  display: block;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 800;
  color: #fff;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

/* ================= CARDS / ARTICLES ================= */
main > section > article {
  position: relative;
  margin-bottom: 18px;
  padding: clamp(18px, 3vw, 28px);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

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

main > section > article h3 {
  color: var(--primary);
}

main > section > article > a:last-child {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent-strong));
  transition: transform var(--transition), box-shadow var(--transition);
}

main > section > article > a:last-child:hover {
  transform: translateX(4px);
  box-shadow: 0 6px 18px rgba(109, 40, 217, 0.32);
  color: #fff;
}

/* Articles grid: #articles article cards */
#articles {
  display: block;
}

#articles > article {
  padding: clamp(16px, 2.6vw, 22px);
}

#articles > article h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

#articles > article p {
  margin-bottom: 0.6em;
  font-size: 0.92rem;
}

#articles > div {
  margin-top: 22px;
  padding: clamp(18px, 3vw, 28px);
  background: var(--gradient-soft);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  transition: background var(--transition), border-color var(--transition);
}

#articles > div:hover {
  border-left-color: var(--accent-strong);
}

#articles > div h4 {
  color: var(--primary);
  margin-bottom: 0.5em;
}

/* Blockquote */
blockquote {
  margin: 22px 0 0;
  padding: 20px 26px;
  background: var(--gradient-soft);
  border-left: 5px solid var(--accent-strong);
  border-radius: var(--radius-md);
  font-style: italic;
}

blockquote p {
  margin-bottom: 0.6em;
  color: var(--text);
  font-weight: 500;
}

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

/* ================= FAQ ================= */
#faq details {
  margin-bottom: 12px;
  padding: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

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

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

#faq summary {
  position: relative;
  padding: 16px 52px 16px 20px;
  font-weight: 700;
  font-size: 0.98rem;
  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: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent-strong));
  border-radius: 50%;
  transition: transform var(--transition);
}

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

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

#faq details > p {
  margin: 0;
  padding: 0 20px 18px;
  font-size: 0.93rem;
  animation: fadeIn 0.35s ease both;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ================= HOWTO ================= */
#howto ol {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
}

#howto ol li {
  position: relative;
  padding-left: 46px;
  margin-bottom: 14px;
  counter-increment: step;
}

#howto ol li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent-strong));
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(109, 40, 217, 0.3);
}

/* ================= CONTACT ================= */
#contact address {
  font-style: normal;
  padding: clamp(18px, 3vw, 26px);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  margin-bottom: 18px;
}

#contact address p {
  margin-bottom: 0.5em;
  font-size: 0.94rem;
}

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

#contact address a {
  font-weight: 600;
}

/* ================= SITEMAP / LINKS ================= */
#sitemap ul,
#links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

#sitemap li,
#links li {
  margin: 0;
}

#sitemap a,
#links a {
  display: inline-block;
  padding: 8px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-soft);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: transform var(--transition), color var(--transition), background var(--transition), border-color var(--transition);
}

#sitemap a:hover,
#links a:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent-strong));
  border-color: transparent;
  transform: translateY(-3px);
}

/* ================= PRIVACY / DISCLAIMER / SECURITY ================= */
#privacy,
#disclaimer,
#security {
  padding: clamp(20px, 3vw, 30px);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

#privacy p,
#disclaimer p,
#security p {
  margin-bottom: 0;
  font-size: 0.93rem;
}

/* ================= FOOTER ================= */
footer {
  position: relative;
  margin-top: 40px;
  padding: clamp(30px, 5vw, 50px) clamp(16px, 4vw, 40px) 40px;
  text-align: center;
  background: linear-gradient(180deg, transparent, rgba(109, 40, 217, 0.08));
  border-top: 1px solid var(--border);
}

footer p {
  margin-bottom: 0.6em;
  font-size: 0.85rem;
  color: var(--text-mute);
}

footer nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  margin: 16px 0 22px;
  padding: 0;
  list-style: none;
}

footer nav li {
  margin: 0;
}

footer nav a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-soft);
}

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

#back-to-top {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 90;
  padding: 11px 20px;
  font-size: 0.82rem;
  font-weight: 700;
  font-family: inherit;
  color: #fff;
  cursor: pointer;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--accent-strong));
  box-shadow: 0 10px 26px rgba(109, 40, 217, 0.4);
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

#back-to-top:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 16px 34px rgba(109, 40, 217, 0.5);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 1024px) {
  #site-search input {
    width: 150px;
  }
  #site-search input:focus {
    width: 180px;
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  #site-header {
    gap: 10px 14px;
  }

  #main-nav {
    order: 10;
    flex-basis: 100%;
    display: none;
  }

  #main-nav.open {
    display: block;
    animation: fadeIn 0.3s ease both;
  }

  #main-nav ul {
    flex-direction: column;
    gap: 4px;
    padding-top: 6px;
  }

  #main-nav a {
    display: block;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    background: var(--bg-soft);
  }

  #menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  #site-search {
    order: 11;
    flex-basis: 100%;
  }

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

  #site-search input:focus {
    width: auto;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 15px;
  }

  #site-header {
    padding: 10px 14px;
  }

  .brand-text span {
    display: none;
  }

  .logo {
    width: 40px;
    height: 40px;
  }

  #hero {
    border-radius: var(--radius-lg);
    padding: 26px 18px;
  }

  .hero-actions {
    gap: 10px;
  }

  .btn-primary,
  .btn-secondary {
    flex: 1 1 auto;
    padding: 11px 18px;
    font-size: 0.9rem;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .stats li {
    padding: 14px 8px;
  }

  h2 {
    padding-left: 0.95em;
  }

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

  #faq summary {
    padding: 14px 46px 14px 16px;
    font-size: 0.93rem;
  }

  #faq details > p {
    padding: 0 16px 16px;
  }

  #back-to-top {
    padding: 9px 16px;
    font-size: 0.76rem;
  }
}

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

:focus-visible {
  outline: 3px solid var(--primary-light);
  outline-offset: 2px;
  border-radius: 6px;
}

::selection {
  background: var(--accent);
  color: var(--primary-dark);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--accent-strong));
  border-radius: 999px;
  border: 2px solid var(--bg-alt);
}

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