:root {
  --primary: #ff4d4f;
  --primary-dark: #d9363e;
  --primary-light: #ff7875;
  --accent: #ffa940;
  --gradient-1: linear-gradient(135deg, #ff4d4f 0%, #ff7a45 50%, #ffa940 100%);
  --gradient-2: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-3: linear-gradient(120deg, #f093fb 0%, #f5576c 100%);
  --gradient-hero: linear-gradient(135deg, #ff4d4f 0%, #ff7a45 40%, #ffa940 100%);
  --bg: #f7f8fc;
  --bg-alt: #ffffff;
  --bg-elevated: rgba(255, 255, 255, 0.72);
  --text: #1a1a2e;
  --text-secondary: #5a5a72;
  --text-muted: #8a8a9e;
  --border: rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 8px 32px rgba(255, 77, 79, 0.28);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-blur: blur(18px);
  --transition: 0.35s 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"] {
  --bg: #0f0f1a;
  --bg-alt: #1a1a2e;
  --bg-elevated: rgba(26, 26, 46, 0.72);
  --text: #eaeaf2;
  --text-secondary: #b0b0c4;
  --text-muted: #7a7a92;
  --border: 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, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 8px 32px rgba(255, 77, 79, 0.35);
  --glass-bg: rgba(26, 26, 46, 0.6);
  --glass-border: rgba(255, 255, 255, 0.12);
}

*,
*::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);
  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;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 77, 79, 0.10), transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(255, 169, 64, 0.10), transparent 40%),
    radial-gradient(circle at 50% 92%, rgba(102, 126, 234, 0.08), transparent 48%);
  pointer-events: none;
  transition: opacity var(--transition);
}

[data-theme="dark"] body::before {
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 77, 79, 0.14), transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(255, 169, 64, 0.10), transparent 40%),
    radial-gradient(circle at 50% 92%, rgba(102, 126, 234, 0.12), transparent 48%);
}

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

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.125rem); }
h3 { font-size: clamp(1.2rem, 2.2vw, 1.5rem); }
h4 { font-size: clamp(1.05rem, 1.8vw, 1.25rem); }

p { margin-bottom: 1rem; 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: linear-gradient(var(--primary), var(--accent));
  border-radius: 10px;
  border: 2px solid var(--bg);
}

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

/* ===== Header ===== */
#siteHeader {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

#siteHeader.scrolled {
  box-shadow: var(--shadow-md);
  background: var(--bg-elevated);
}

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

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

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

.logo svg {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  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: 1.35rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

#mainNav {
  flex: 1;
  display: flex;
  justify-content: center;
}

#mainNav ul {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}

#mainNav a {
  display: inline-block;
  padding: 0.5rem 0.85rem;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition), background var(--transition);
}

#mainNav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width var(--transition);
}

#mainNav a:hover {
  color: var(--primary);
  background: rgba(255, 77, 79, 0.08);
}

#mainNav a:hover::after {
  width: 60%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

#siteSearch {
  display: flex;
  align-items: center;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#siteSearch:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 77, 79, 0.15);
}

#siteSearch input {
  border: none;
  outline: none;
  background: transparent;
  padding: 0.5rem 0.9rem;
  font-size: 0.88rem;
  color: var(--text);
  width: 150px;
  font-family: inherit;
  transition: width var(--transition);
}

#siteSearch input:focus {
  width: 200px;
}

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

#siteSearch button {
  border: none;
  background: var(--gradient-1);
  color: #fff;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: opacity var(--transition), transform var(--transition);
}

#siteSearch button:hover {
  opacity: 0.9;
  transform: scale(1.02);
}

#themeToggle,
#menuToggle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  font-size: 1.15rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#themeToggle:hover,
#menuToggle:hover {
  transform: rotate(15deg) scale(1.08);
  background: var(--gradient-1);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}

#menuToggle {
  display: none;
}

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

main > section {
  margin: 3.5rem 0;
  padding: 2.5rem;
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition), background var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

main > section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-1);
  opacity: 0;
  transition: opacity var(--transition);
}

main > section:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

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

main > section > h2 {
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  position: relative;
  display: inline-block;
}

main > section > h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 4px;
  border-radius: 4px;
  background: var(--gradient-1);
}

main > section > h3 {
  margin: 1.75rem 0 0.85rem;
  color: var(--text);
}

main > section > h3::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gradient-1);
  margin-right: 0.6rem;
  vertical-align: middle;
}

main > section > h4 {
  margin: 1.25rem 0 0.5rem;
  color: var(--primary);
}

/* ===== Hero ===== */
.hero {
  margin: 2rem 0 !important;
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  overflow: visible !important;
}

.hero::before {
  display: none !important;
}

.hero:hover {
  transform: none !important;
  box-shadow: none !important;
}

.hero-slider {
  position: relative;
  background: var(--gradient-hero);
  border-radius: var(--radius-xl);
  padding: 3.5rem 3rem;
  min-height: 340px;
  color: #fff;
  box-shadow: var(--shadow-glow);
  overflow: hidden;
}

.hero-slider::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 20%, rgba(255, 255, 255, 0.25), transparent 45%),
    radial-gradient(circle at 15% 85%, rgba(255, 255, 255, 0.15), transparent 40%);
  pointer-events: none;
}

.hero-slider::after {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  filter: blur(40px);
  pointer-events: none;
  animation: floatBlob 8s ease-in-out infinite;
}

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

.slide {
  display: none;
  position: relative;
  z-index: 2;
  animation: fadeSlide 0.6s ease;
}

.slide.active {
  display: block;
}

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.slide h1,
.slide h2 {
  color: #fff;
  margin-bottom: 1rem;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.slide h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
}

.slide p {
  color: rgba(255, 255, 255, 0.94);
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  max-width: 780px;
  margin-bottom: 0;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.12);
}

.slider-dots {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.6rem;
  z-index: 3;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.7);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition);
}

.dot.active {
  background: #fff;
  width: 28px;
  border-radius: 6px;
  border-color: #fff;
}

.dot:hover {
  transform: scale(1.2);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.stat {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-md);
}

.stat .num {
  display: block;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.stat > span:last-child {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  margin: 1.5rem 0 !important;
  padding: 0.85rem 1.25rem !important;
  background: var(--glass-bg) !important;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-md) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--shadow-sm) !important;
}

.breadcrumb:hover {
  transform: none !important;
}

.breadcrumb::before {
  display: none !important;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  color: var(--text-muted);
  opacity: 0.6;
}

.breadcrumb a {
  color: var(--text-secondary);
  font-weight: 500;
}

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

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

/* ===== Meta ===== */
.meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0.6rem 0.9rem;
  background: rgba(255, 77, 79, 0.06);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1rem 0;
}

[data-theme="dark"] .meta {
  background: rgba(255, 77, 79, 0.12);
}

/* ===== Articles ===== */
#articles article {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

#articles article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gradient-1);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

#articles article:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255, 77, 79, 0.3);
}

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

#articles article h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--text);
  transition: color var(--transition);
}

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

#articles article p {
  margin-bottom: 0.75rem;
}

#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-xl);
  background: rgba(255, 77, 79, 0.1);
  transition: all var(--transition);
}

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

#articles article a:hover {
  background: var(--gradient-1);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

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

/* ===== FAQ ===== */
#faq details {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 0.85rem;
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

#faq details[open] {
  box-shadow: var(--shadow-md);
  border-color: rgba(255, 77, 79, 0.35);
}

#faq details:hover {
  border-color: rgba(255, 77, 79, 0.3);
}

#faq summary {
  padding: 1.15rem 1.5rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
  transition: background var(--transition), color var(--transition);
}

#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 {
  content: "−";
  transform: rotate(180deg);
}

#faq summary:hover {
  background: rgba(255, 77, 79, 0.06);
  color: var(--primary);
}

#faq details p {
  padding: 0 1.5rem 1.25rem;
  margin: 0;
  font-size: 0.95rem;
  animation: fadeSlide 0.35s ease;
}

/* ===== Blockquote ===== */
blockquote {
  background: var(--bg);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.25rem 1.5rem;
  margin: 1rem 0;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}

blockquote::before {
  content: "\201C";
  position: absolute;
  top: 0.25rem;
  left: 0.75rem;
  font-size: 3rem;
  color: var(--primary);
  opacity: 0.18;
  font-family: Georgia, serif;
  line-height: 1;
}

blockquote:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

blockquote p {
  margin: 0;
  color: var(--text-secondary);
  font-style: italic;
  position: relative;
  z-index: 1;
}

/* ===== HowTo ===== */
#howto h4 {
  padding-left: 0.5rem;
  border-left: 3px solid var(--accent);
}

/* ===== Contact ===== */
#contact p {
  line-height: 2;
}

#contact br {
  display: block;
  content: "";
  margin-top: 0.25rem;
}

/* ===== Sitemap & Links ===== */
#sitemap ul,
#links ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}

#sitemap a,
#links a {
  display: block;
  padding: 0.7rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}

#sitemap a:hover,
#links a:hover {
  background: var(--gradient-1);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* ===== Footer ===== */
footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  margin-top: 4rem;
  padding: 2.5rem 1.5rem;
  transition: background var(--transition), border-color var(--transition);
  position: relative;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-1);
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
}

.footer-inner p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.footer-inner p:first-child {
  font-weight: 600;
  color: var(--text-secondary);
}

/* ===== Back to Top ===== */
#backToTop {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--gradient-1);
  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;
}

#backToTop.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

#backToTop:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: 0 12px 40px rgba(255, 77, 79, 0.45);
}

/* ===== Scroll Animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .header-inner {
    gap: 1rem;
    padding: 0.75rem 1rem;
  }

  #mainNav a {
    padding: 0.45rem 0.6rem;
    font-size: 0.85rem;
  }

  #siteSearch input {
    width: 110px;
  }

  #siteSearch input:focus {
    width: 150px;
  }

  main > section {
    padding: 2rem 1.75rem;
  }

  .hero-slider {
    padding: 3rem 2.25rem;
  }
}

@media (max-width: 860px) {
  #menuToggle {
    display: flex;
  }

  #mainNav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition), padding var(--transition);
    justify-content: flex-start;
  }

  #mainNav.open {
    max-height: 520px;
    padding: 1rem 0;
  }

  #mainNav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    padding: 0 1rem;
    width: 100%;
  }

  #mainNav a {
    display: block;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
  }

  #mainNav a::after {
    display: none;
  }

  .header-inner {
    position: relative;
  }

  #siteSearch {
    display: none;
  }

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

  main > section {
    padding: 1.75rem 1.25rem;
    margin: 2.5rem 0;
    border-radius: var(--radius-md);
  }

  .hero-slider {
    padding: 2.5rem 1.5rem;
    border-radius: var(--radius-lg);
    min-height: 300px;
  }

  .hero-slider::after {
    width: 260px;
    height: 260px;
  }

  #articles article:hover {
    transform: translateY(-4px);
  }
}

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

  main {
    padding: 0 0.85rem;
  }

  .header-inner {
    padding: 0.6rem 0.85rem;
    gap: 0.6rem;
  }

  .logo-text {
    font-size: 1.15rem;
  }

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

  #themeToggle,
  #menuToggle {
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }

  .hero-slider {
    padding: 2rem 1.25rem;
    min-height: 280px;
  }

  .slide h1 {
    font-size: 1.35rem;
  }

  .slide p {
    font-size: 0.92rem;
  }

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

  .stat {
    padding: 1.1rem 0.6rem;
  }

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

  .stat > span:last-child {
    font-size: 0.78rem;
  }

  main > section {
    padding: 1.5rem 1rem;
    margin: 2rem 0;
  }

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

  #articles article {
    padding: 1.25rem;
  }

  #faq summary {
    padding: 1rem 1.1rem;
    font-size: 0.92rem;
  }

  #faq details p {
    padding: 0 1.1rem 1rem;
    font-size: 0.88rem;
  }

  #sitemap ul,
  #links ul {
    grid-template-columns: repeat(2, 1fr);
  }

  #backToTop {
    right: 1rem;
    bottom: 1rem;
    width: 42px;
    height: 42px;
    font-size: 1.1rem;
  }

  blockquote {
    padding: 1rem 1.1rem;
  }
}

@media (max-width: 380px) {
  .hero-stats {
    grid-template-columns: 1fr;
  }

  #sitemap ul,
  #links ul {
    grid-template-columns: 1fr;
  }
}

/* ===== 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 {
  #siteHeader,
  #backToTop,
  .slider-dots,
  #siteSearch,
  #themeToggle,
  #menuToggle {
    display: none !important;
  }

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

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