:root {
  --brand: #e63946;
  --brand-dark: #c1121f;
  --brand-light: #ff6b6b;
  --accent: #f4a261;
  --accent-2: #e94560;
  --bg: #f5f7fb;
  --bg-soft: #eef1f8;
  --card-bg: rgba(255, 255, 255, 0.78);
  --card-border: rgba(255, 255, 255, 0.65);
  --text: #1a1a2e;
  --text-soft: #4a4e69;
  --text-muted: #6b7280;
  --line: rgba(26, 26, 46, 0.1);
  --shadow-sm: 0 4px 14px rgba(26, 26, 46, 0.08);
  --shadow-md: 0 12px 32px rgba(26, 26, 46, 0.12);
  --shadow-lg: 0 24px 60px rgba(26, 26, 46, 0.18);
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 26px;
  --header-h: 72px;
  --glass-blur: 16px;
  --grad-brand: linear-gradient(135deg, #1a1a2e 0%, #16213e 45%, #e63946 100%);
  --grad-accent: linear-gradient(135deg, #e63946 0%, #f4a261 100%);
  --grad-soft: linear-gradient(135deg, rgba(230, 57, 70, 0.12), rgba(244, 162, 97, 0.12));
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark"] {
  --bg: #0d1020;
  --bg-soft: #12162a;
  --card-bg: rgba(24, 28, 48, 0.72);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #eef1f8;
  --text-soft: #b8c0d8;
  --text-muted: #8a93ad;
  --line: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.6);
  --grad-brand: linear-gradient(135deg, #0b0e1a 0%, #16213e 45%, #b81d2b 100%);
  --grad-soft: linear-gradient(135deg, rgba(230, 57, 70, 0.18), rgba(244, 162, 97, 0.14));
}

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

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

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(230, 57, 70, 0.1), transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(244, 162, 97, 0.12), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(22, 33, 62, 0.08), transparent 55%);
  background-attachment: fixed;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

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

a {
  color: var(--brand);
  text-decoration: none;
  transition: color 0.25s ease, opacity 0.25s ease;
}

a:hover,
a:focus-visible {
  color: var(--brand-dark);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

h1, h2, h3, h4 {
  line-height: 1.3;
  color: var(--text);
  letter-spacing: 0.2px;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 2.8vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }

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

ul, ol { color: var(--text-soft); }

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

::selection {
  background: rgba(230, 57, 70, 0.25);
  color: var(--text);
}

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

.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 20px;
}

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

.brand-logo {
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(230, 57, 70, 0.35);
  transition: transform var(--transition);
}

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

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 1px;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}

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

#main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}

#main-nav ul::-webkit-scrollbar { display: none; }

#main-nav a {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-soft);
  white-space: nowrap;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

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

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

.site-search {
  display: flex;
  align-items: center;
  background: rgba(26, 26, 46, 0.05);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 3px 3px 14px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

[data-theme="dark"] .site-search {
  background: rgba(255, 255, 255, 0.06);
}

.site-search:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.14);
}

.site-search input {
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 0.88rem;
  width: 150px;
  padding: 6px 0;
  outline: none;
  font-family: inherit;
}

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

.site-search button {
  border: none;
  cursor: pointer;
  background: var(--grad-accent);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 999px;
  font-family: inherit;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.site-search button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(230, 57, 70, 0.4);
  filter: brightness(1.05);
}

#theme-toggle,
#menu-toggle {
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-soft);
  background: rgba(26, 26, 46, 0.05);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  transition: all var(--transition);
  white-space: nowrap;
}

[data-theme="dark"] #theme-toggle,
[data-theme="dark"] #menu-toggle {
  background: rgba(255, 255, 255, 0.06);
}

#theme-toggle:hover,
#menu-toggle:hover {
  color: #fff;
  background: var(--grad-accent);
  border-color: transparent;
  transform: translateY(-1px);
}

#menu-toggle { display: none; }

/* ============ Layout ============ */
main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

main > section {
  margin: 56px 0;
  animation: fadeUp 0.7s ease both;
}

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

/* ============ Hero ============ */
.hero {
  margin-top: 32px !important;
  display: grid;
  gap: 28px;
}

.hero-slider {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--grad-brand);
  isolation: isolate;
}

.hero-slider::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.55) 100%);
  pointer-events: none;
  z-index: 1;
}

.slide {
  display: none;
  position: relative;
  animation: slideIn 0.6s ease both;
}

.slide.active { display: block; }

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

.slide svg {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 1200 / 420;
  object-fit: cover;
}

.slide-caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 28px 36px;
  max-width: 640px;
  color: #fff;
}

.slide-caption h2 {
  color: #fff;
  margin-bottom: 8px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.slide-caption p {
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
}

.slider-prev,
.slider-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
}

.slider-prev { left: 18px; }
.slider-next { right: 18px; }

.slider-prev:hover,
.slider-next:hover {
  background: var(--brand);
  transform: translateY(-50%) scale(1.1);
}

.hero-intro {
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 44px);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.hero-intro::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: var(--grad-accent);
  opacity: 0.14;
  border-radius: 50%;
  filter: blur(20px);
  pointer-events: none;
}

.hero-intro h1 {
  position: relative;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
}

.hero-lead {
  font-size: 1.02rem;
  color: var(--text-soft);
  position: relative;
}

.hero-stats {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  position: relative;
}

.hero-stats li {
  background: var(--grad-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 12px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: transform var(--transition), box-shadow var(--transition);
}

.hero-stats li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.hero-stats strong {
  display: block;
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  font-weight: 800;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 2px;
}

/* ============ Breadcrumb ============ */
#breadcrumb {
  margin: 24px 0 0;
}

#breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 10px 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  width: fit-content;
}

#breadcrumb li + li::before {
  content: "›";
  margin-right: 8px;
  color: var(--text-muted);
}

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

/* ============ Cards / Sections ============ */
main > section > h2 {
  position: relative;
  padding-left: 18px;
}

main > section > h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 6px;
  border-radius: 999px;
  background: var(--grad-accent);
}

main > section > h3 {
  margin-top: 1.6em;
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--line);
}

/* Timeline */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.timeline li {
  position: relative;
  padding: 14px 18px 14px 34px;
  margin-bottom: 12px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.timeline li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 22px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--grad-accent);
  box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.15);
}

.timeline li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

/* Lists */
main > section > ul,
main > section > ol {
  padding-left: 1.2em;
}

main > section > ul li,
main > section > ol li {
  margin-bottom: 0.5em;
}

/* ============ Articles ============ */
#articles > article {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 18px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  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;
  left: 0;
  top: 0;
  bottom: 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: rgba(230, 57, 70, 0.35);
}

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

#articles h3 {
  margin: 0 0 6px;
  border: none;
  padding: 0;
}

#articles h3 a {
  color: var(--text);
}

#articles h3 a:hover {
  color: var(--brand);
}

#articles .meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0 0 10px;
  letter-spacing: 0.3px;
}

#articles article > a:last-child {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--brand);
  padding: 4px 0;
}

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

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

/* ============ Blockquotes ============ */
blockquote {
  margin: 16px 0;
  padding: 18px 22px;
  background: var(--grad-soft);
  border-left: 4px solid var(--brand);
  border-radius: 0 var(--radius) var(--radius) 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

blockquote p {
  margin: 0;
  color: var(--text-soft);
  font-style: italic;
}

/* ============ FAQ ============ */
#faq details {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  padding: 0 20px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

#faq details[open] {
  border-color: rgba(230, 57, 70, 0.4);
  box-shadow: var(--shadow-md);
}

#faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-weight: 600;
  color: var(--text);
  position: relative;
  padding-right: 32px;
  transition: color var(--transition);
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--brand);
  transition: transform var(--transition);
}

#faq details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

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

#faq details p {
  margin: 0 0 18px;
  padding-top: 4px;
  border-top: 1px dashed var(--line);
  color: var(--text-soft);
  animation: fadeUp 0.4s ease both;
}

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

#howto ol li {
  counter-increment: step;
  position: relative;
  padding: 14px 18px 14px 56px;
  margin-bottom: 12px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

#howto ol li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--grad-accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(230, 57, 70, 0.35);
}

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

/* ============ Contact ============ */
.contact-info {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.contact-info li {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  font-size: 0.94rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.contact-info li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(230, 57, 70, 0.35);
}

.contact-info strong {
  display: block;
  font-size: 0.78rem;
  color: var(--brand);
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

/* ============ Sitemap & Links ============ */
.sitemap-list,
.friend-links {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sitemap-list li,
.friend-links li {
  margin: 0;
}

.sitemap-list a,
.friend-links a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-soft);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition);
}

.sitemap-list a:hover,
.friend-links a:hover {
  color: #fff;
  background: var(--grad-accent);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(230, 57, 70, 0.3);
}

/* ============ Footer ============ */
#site-footer {
  background: var(--grad-brand);
  color: rgba(255, 255, 255, 0.85);
  padding: 48px 24px 36px;
  margin-top: 40px;
  position: relative;
  overflow: hidden;
}

#site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(244, 162, 97, 0.18), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(230, 57, 70, 0.22), transparent 45%);
  pointer-events: none;
}

.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  position: relative;
  text-align: center;
}

.footer-inner p {
  margin: 0 0 10px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
}

.footer-inner p:first-child strong {
  color: #fff;
  font-size: 1.05rem;
  letter-spacing: 1px;
}

.footer-inner a {
  color: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.footer-inner a:hover {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.6);
}

/* ============ Back to top ============ */
#back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 999;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: #fff;
  background: var(--grad-accent);
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  box-shadow: 0 10px 26px rgba(230, 57, 70, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition), box-shadow var(--transition);
}

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

#back-to-top:hover {
  box-shadow: 0 14px 34px rgba(230, 57, 70, 0.55);
  transform: translateY(-3px);
}

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  .site-search input { width: 110px; }
  #main-nav a { padding: 8px 9px; font-size: 0.86rem; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }

  .header-inner {
    flex-wrap: wrap;
    padding: 10px 18px;
    gap: 12px;
  }

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

  #main-nav {
    order: 4;
    flex-basis: 100%;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease;
  }

  #main-nav.open {
    max-height: 520px;
    opacity: 1;
    padding-bottom: 8px;
  }

  #main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    overflow: visible;
  }

  #main-nav a {
    display: block;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
  }

  .header-tools {
    margin-left: auto;
  }

  .site-search { display: none; }

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

  .slide-caption {
    padding: 20px 22px;
  }

  .slide-caption h2 { font-size: 1.15rem; }
  .slide-caption p { font-size: 0.85rem; }

  .slider-prev,
  .slider-next {
    width: 38px;
    height: 38px;
    font-size: 1.3rem;
  }
}

@media (max-width: 640px) {
  body { font-size: 15px; }

  main { padding: 0 16px 60px; }

  main > section { margin: 40px 0; }

  .hero { margin-top: 20px !important; }

  .hero-intro { padding: 22px 20px; }

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

  .hero-stats li { padding: 12px 8px; font-size: 0.78rem; }

  .slide-caption {
    padding: 16px 16px;
    max-width: 100%;
  }

  .slide-caption h2 { font-size: 1rem; }
  .slide-caption p { font-size: 0.78rem; }

  .slider-prev { left: 8px; }
  .slider-next { right: 8px; }

  #articles > article { padding: 18px; }

  .sitemap-list a,
  .friend-links a { padding: 7px 13px; font-size: 0.82rem; }

  #back-to-top {
    right: 14px;
    bottom: 14px;
    padding: 10px 14px;
    font-size: 0.76rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  #site-header,
  #back-to-top,
  .hero-slider,
  #site-footer {
    display: none !important;
  }

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