:root {
  --primary: #c0392b;
  --primary-dark: #962d22;
  --primary-light: #e74c3c;
  --accent: #e67e22;
  --accent2: #8e44ad;
  --accent3: #2c3e50;
  --gradient-1: linear-gradient(135deg, #c0392b 0%, #8e44ad 100%);
  --gradient-2: linear-gradient(135deg, #e74c3c 0%, #e67e22 100%);
  --gradient-3: linear-gradient(120deg, #2c3e50 0%, #c0392b 100%);
  --bg: #f7f5f2;
  --bg-alt: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.72);
  --bg-glass: rgba(255, 255, 255, 0.55);
  --text: #2b2b2b;
  --text-light: #6b6b6b;
  --text-muted: #999999;
  --border: rgba(0, 0, 0, 0.08);
  --border-glass: rgba(255, 255, 255, 0.35);
  --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 8px 32px rgba(192, 57, 43, 0.25);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --header-h: 68px;
  --transition: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-slow: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

[data-theme="dark"] {
  --bg: #121216;
  --bg-alt: #1a1a20;
  --bg-card: rgba(38, 38, 48, 0.72);
  --bg-glass: rgba(30, 30, 40, 0.6);
  --text: #ececf0;
  --text-light: #b0b0bc;
  --text-muted: #78788a;
  --border: rgba(255, 255, 255, 0.08);
  --border-glass: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 8px 32px rgba(192, 57, 43, 0.4);
}

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

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

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);
  background-image:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(192, 57, 43, 0.06), transparent),
    radial-gradient(ellipse 60% 40% at 85% 10%, rgba(142, 68, 173, 0.05), transparent);
  background-attachment: fixed;
}

[data-theme="dark"] body {
  background-image:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(192, 57, 43, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 85% 10%, rgba(142, 68, 173, 0.1), transparent);
}

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

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

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

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
}

h1 { font-size: clamp(1.6rem, 4vw, 2.6rem); }
h2 { font-size: clamp(1.35rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2.2vw, 1.45rem); }

p { margin-bottom: 0.85em; }

/* ===== Header ===== */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: auto;
  min-height: var(--header-h);
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-glass);
  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: 10px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  transition: transform var(--transition);
}

.logo:hover {
  transform: scale(1.04);
}

.logo svg {
  border-radius: 10px;
  box-shadow: var(--shadow-glow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.logo:hover svg {
  transform: rotate(-6deg) scale(1.08);
}

.logo-text {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: var(--gradient-1);
  -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: 4px;
  flex-wrap: wrap;
}

#main-nav a {
  display: block;
  padding: 7px 13px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-light);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  position: relative;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

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

#main-nav a:hover {
  color: var(--primary);
  background: rgba(192, 57, 43, 0.08);
  transform: translateY(-1px);
}

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

#menu-toggle,
#theme-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--text);
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  flex-shrink: 0;
}

#menu-toggle:hover,
#theme-toggle:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

#theme-toggle {
  display: flex;
}

#site-search {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
  flex-shrink: 0;
}

#site-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.15);
}

#site-search input {
  border: none;
  outline: none;
  background: transparent;
  padding: 9px 16px;
  font-size: 0.88rem;
  color: var(--text);
  width: 150px;
  font-family: inherit;
  transition: width var(--transition);
}

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

#site-search input:focus {
  width: 200px;
}

#site-search button {
  border: none;
  background: var(--gradient-2);
  color: #fff;
  padding: 9px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: opacity var(--transition), transform var(--transition);
  white-space: nowrap;
}

#site-search button:hover {
  opacity: 0.88;
  transform: scale(1.03);
}

/* ===== Hero ===== */
#hero {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(40px, 7vw, 80px) 20px clamp(30px, 5vw, 50px);
  text-align: center;
  overflow: hidden;
}

#hero::before {
  content: "";
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 120%;
  height: 160%;
  background: var(--gradient-1);
  opacity: 0.06;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: heroPulse 8s ease-in-out infinite alternate;
}

@keyframes heroPulse {
  0% { transform: translateX(-50%) scale(1) rotate(0deg); opacity: 0.06; }
  100% { transform: translateX(-50%) scale(1.15) rotate(8deg); opacity: 0.11; }
}

#hero h1 {
  position: relative;
  background: var(--gradient-3);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
  animation: fadeUp 0.8s ease both;
  letter-spacing: -0.5px;
}

.hero-lead {
  position: relative;
  max-width: 820px;
  margin: 0 auto 36px;
  color: var(--text-light);
  font-size: clamp(0.95rem, 1.6vw, 1.08rem);
  line-height: 1.85;
  animation: fadeUp 0.8s 0.15s ease both;
}

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

.hero-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 860px;
  margin: 0 auto 44px;
  animation: fadeUp 0.8s 0.3s ease both;
}

.hero-stats > div {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 20px 12px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.hero-stats > div:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow: var(--shadow-md), var(--shadow-glow);
  border-color: rgba(192, 57, 43, 0.3);
}

.hero-stats strong {
  display: block;
  font-size: clamp(1.4rem, 3.2vw, 2.1rem);
  font-weight: 800;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.hero-stats span {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ===== Carousel ===== */
#banner-carousel {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.8s 0.45s ease both;
}

#banner-carousel .slide {
  display: none;
  opacity: 0;
  transition: opacity 0.8s ease;
}

#banner-carousel .slide.active {
  display: block;
  opacity: 1;
  animation: kenBurns 6s ease both;
}

@keyframes kenBurns {
  from { transform: scale(1.06); }
  to { transform: scale(1); }
}

#banner-carousel .slide svg {
  border-radius: var(--radius-lg);
  display: block;
}

/* ===== Breadcrumb ===== */
nav[aria-label="面包屑导航"] {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px 10px;
}

nav[aria-label="面包屑导航"] ol {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

nav[aria-label="面包屑导航"] li + li::before {
  content: "›";
  margin-right: 8px;
  color: var(--text-muted);
  opacity: 0.6;
}

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

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

/* ===== Anchor Nav ===== */
#anchor-nav {
  position: sticky;
  top: var(--header-h);
  z-index: 900;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  padding: 0 20px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

#anchor-nav ul {
  display: flex;
  gap: 6px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 10px 0;
  white-space: nowrap;
}

#anchor-nav a {
  display: block;
  padding: 6px 15px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-light);
  border-radius: 999px;
  border: 1px solid transparent;
  transition: all var(--transition);
}

#anchor-nav a:hover {
  color: #fff;
  background: var(--gradient-2);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* ===== Main Sections ===== */
main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

main section {
  padding: clamp(36px, 6vw, 64px) 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}

main section:last-of-type {
  border-bottom: none;
}

main section > h2 {
  position: relative;
  margin-bottom: 28px;
  padding-left: 20px;
  letter-spacing: -0.3px;
}

main section > h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 1.1em;
  background: var(--gradient-2);
  border-radius: 3px;
  box-shadow: 0 0 12px rgba(192, 57, 43, 0.5);
}

main section > h2::after {
  content: "";
  position: absolute;
  left: 20px;
  bottom: -10px;
  width: 48px;
  height: 3px;
  background: var(--gradient-2);
  border-radius: 2px;
  opacity: 0.5;
}

/* ===== Cards (articles) ===== */
main section article {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

main section article::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-2);
  opacity: 0;
  transition: opacity var(--transition);
}

main section article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(192, 57, 43, 0.25);
}

main section article:hover::before {
  opacity: 1;
}

main section article h3 {
  margin-bottom: 10px;
  color: var(--text);
  transition: color var(--transition);
}

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

main section article p {
  color: var(--text-light);
  font-size: 0.95rem;
}

main section article time {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: rgba(192, 57, 43, 0.08);
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
  font-weight: 500;
}

main section article a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 8px;
  color: var(--primary);
  transition: gap var(--transition), color var(--transition);
}

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

main section article a:hover {
  gap: 12px;
  color: var(--primary-light);
}

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

/* ===== Advantages list ===== */
#advantages ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

#advantages li {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  font-size: 0.93rem;
  color: var(--text-light);
  position: relative;
  padding-left: 48px;
}

#advantages li::before {
  content: "✓";
  position: absolute;
  left: 18px;
  top: 20px;
  width: 22px;
  height: 22px;
  background: var(--gradient-2);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(192, 57, 43, 0.35);
}

#advantages li:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

#advantages li strong {
  color: var(--text);
  display: block;
  margin-bottom: 4px;
  font-size: 1rem;
}

/* ===== Blockquote ===== */
blockquote {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 22px 24px 22px 56px;
  margin: 16px 0;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

blockquote::before {
  content: "\201C";
  position: absolute;
  left: 18px;
  top: 8px;
  font-size: 3rem;
  color: var(--primary);
  opacity: 0.3;
  font-family: Georgia, serif;
  line-height: 1;
}

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

blockquote p {
  color: var(--text-light);
  font-style: italic;
  margin: 0;
  font-size: 0.95rem;
}

/* ===== FAQ details ===== */
#faq details {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), border-color var(--transition);
}

#faq details[open] {
  border-color: rgba(192, 57, 43, 0.3);
  box-shadow: var(--shadow-md);
}

#faq details:hover {
  border-color: rgba(192, 57, 43, 0.2);
}

#faq summary {
  cursor: pointer;
  padding: 18px 24px;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  transition: color var(--transition), background var(--transition);
  position: relative;
}

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

#faq summary::after {
  content: "+";
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--gradient-2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 400;
  transition: transform var(--transition), background var(--transition);
  box-shadow: 0 2px 8px rgba(192, 57, 43, 0.3);
}

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

#faq summary:hover {
  color: var(--primary);
  background: rgba(192, 57, 43, 0.04);
}

#faq details p {
  padding: 0 24px 20px;
  color: var(--text-light);
  font-size: 0.93rem;
  animation: fadeUp 0.35s ease both;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin: 0 24px 20px;
  padding-left: 0;
  padding-right: 0;
}

/* ===== HowTo ordered list ===== */
#howto ol {
  counter-reset: step;
  display: grid;
  gap: 12px;
  margin-top: 8px;
}

#howto ol li {
  counter-increment: step;
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 16px 20px 16px 64px;
  box-shadow: var(--shadow-sm);
  color: var(--text-light);
  font-size: 0.93rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

#howto ol li::before {
  content: counter(step);
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  background: var(--gradient-1);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: var(--shadow-glow);
}

#howto ol li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

/* ===== Contact address ===== */
#contact address {
  font-style: normal;
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 28px 30px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
  display: grid;
  gap: 6px;
}

#contact address p {
  margin: 0;
  color: var(--text-light);
  font-size: 0.95rem;
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}

#contact address a {
  font-weight: 600;
  transition: color var(--transition), transform var(--transition);
  display: inline-block;
}

#contact address a:hover {
  transform: translateX(3px);
}

#contact h3 {
  margin: 24px 0 10px;
  font-size: 1.1rem;
  color: var(--text);
  position: relative;
  padding-left: 16px;
}

#contact h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 0.9em;
  background: var(--gradient-2);
  border-radius: 2px;
}

/* ===== Sitemap & Links ===== */
#sitemap ul,
#links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

#sitemap li,
#links li {
  flex: 0 0 auto;
}

#sitemap a,
#links a {
  display: block;
  padding: 8px 18px;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  border-radius: 999px;
  font-size: 0.86rem;
  color: var(--text-light);
  font-weight: 500;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

#sitemap a:hover,
#links a:hover {
  color: #fff;
  background: var(--gradient-2);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* ===== Legal ===== */
#legal h2 {
  font-size: 1.15rem;
  margin: 28px 0 10px;
  padding-left: 16px;
}

#legal h2::after {
  display: none;
}

#legal p {
  color: var(--text-light);
  font-size: 0.92rem;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
}

/* ===== Meta info ===== */
#meta-info {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 28px 30px !important;
  margin-bottom: 40px;
  box-shadow: var(--shadow-sm);
}

#meta-info h2 {
  font-size: 1.15rem;
}

#meta-info p {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 6px;
}

/* ===== Footer ===== */
footer[role="contentinfo"] {
  background: var(--gradient-3);
  color: rgba(255, 255, 255, 0.85);
  padding: 48px 20px 32px;
  margin-top: 20px;
  position: relative;
  overflow: hidden;
}

footer[role="contentinfo"]::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

footer[role="contentinfo"] > p {
  max-width: 1280px;
  margin: 0 auto 10px;
  font-size: 0.88rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

footer[role="contentinfo"] nav {
  max-width: 1280px;
  margin: 24px auto 0;
  position: relative;
  z-index: 1;
}

footer[role="contentinfo"] nav ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

footer[role="contentinfo"] nav a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.86rem;
  padding: 6px 14px;
  border-radius: 999px;
  transition: all var(--transition);
}

footer[role="contentinfo"] nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

/* ===== Back to top ===== */
#back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--gradient-2);
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: var(--shadow-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.8);
  transition: all var(--transition);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

#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: 0 12px 32px rgba(192, 57, 43, 0.5);
}

#back-to-top:active {
  transform: translateY(-1px) scale(0.98);
}

/* ===== Scroll reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* ===== Selection ===== */
::selection {
  background: rgba(192, 57, 43, 0.25);
  color: var(--text);
}

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

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--accent2));
  border-radius: 999px;
  border: 2px solid var(--bg);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-light), var(--accent2));
}

/* ===== Focus visible ===== */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  #main-nav a {
    padding: 6px 10px;
    font-size: 0.85rem;
  }

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

  #site-search input:focus {
    width: 160px;
  }
}

@media (max-width: 860px) {
  .header-inner {
    gap: 10px;
  }

  #menu-toggle {
    display: flex;
    order: 2;
    margin-left: auto;
  }

  #theme-toggle {
    order: 3;
  }

  #main-nav {
    order: 5;
    flex-basis: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  }

  #main-nav.open {
    max-height: 500px;
  }

  #main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 8px 0;
  }

  #main-nav a {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }

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

  #site-search {
    order: 4;
    flex-basis: 100%;
    margin-top: 4px;
  }

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

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

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

  #anchor-nav {
    top: 0;
  }

  #anchor-nav ul {
    padding: 8px 0;
  }
}

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

  .header-inner {
    padding: 8px 14px;
  }

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

  main {
    padding: 0 14px;
  }

  main section {
    padding: 28px 0;
  }

  main section article {
    padding: 18px 18px;
  }

  .hero-stats {
    gap: 10px;
  }

  .hero-stats > div {
    padding: 16px 8px;
  }

  #contact address {
    padding: 20px 18px;
  }

  #meta-info {
    padding: 20px 18px !important;
  }

  #faq summary {
    padding: 15px 18px;
    font-size: 0.92rem;
  }

  #faq details p {
    margin: 0 18px 16px;
  }

  #howto ol li {
    padding: 14px 16px 14px 56px;
  }

  #howto ol li::before {
    left: 14px;
    width: 28px;
    height: 28px;
    font-size: 0.82rem;
  }

  #back-to-top {
    bottom: 18px;
    right: 18px;
    width: 42px;
    height: 42px;
  }

  blockquote {
    padding: 18px 18px 18px 48px;
  }

  blockquote::before {
    left: 12px;
    font-size: 2.4rem;
  }
}

/* ===== Reduced 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;
  }

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

/* ===== Print ===== */
@media print {
  #site-header,
  #anchor-nav,
  #back-to-top,
  #banner-carousel,
  footer[role="contentinfo"] nav {
    display: none;
  }

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

  main section article,
  #faq details,
  #contact address {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
  }
}