:root {
  --sg-primary: #2f7d32;
  --sg-primary-light: #4caf50;
  --sg-primary-dark: #1b5e20;
  --sg-accent: #ffca28;
  --sg-accent-dark: #f9a825;
  --sg-bg: #f5f7f5;
  --sg-bg-alt: #ffffff;
  --sg-surface: rgba(255, 255, 255, 0.72);
  --sg-surface-solid: #ffffff;
  --sg-surface-glass: rgba(255, 255, 255, 0.55);
  --sg-border: rgba(47, 125, 50, 0.14);
  --sg-text: #1f2a22;
  --sg-text-secondary: #4a5a4e;
  --sg-text-muted: #6b7a6f;
  --sg-shadow-sm: 0 2px 8px rgba(31, 42, 34, 0.06);
  --sg-shadow-md: 0 8px 24px rgba(31, 42, 34, 0.09);
  --sg-shadow-lg: 0 16px 48px rgba(31, 42, 34, 0.14);
  --sg-shadow-glow: 0 8px 32px rgba(47, 125, 50, 0.22);
  --sg-radius-sm: 10px;
  --sg-radius-md: 16px;
  --sg-radius-lg: 24px;
  --sg-radius-xl: 32px;
  --sg-radius-pill: 999px;
  --sg-transition: 0.32s cubic-bezier(0.22, 1, 0.36, 1);
  --sg-transition-fast: 0.18s cubic-bezier(0.22, 1, 0.36, 1);
  --sg-gradient-banner: linear-gradient(135deg, #1b5e20 0%, #2f7d32 34%, #43a047 62%, #ffca28 120%);
  --sg-gradient-primary: linear-gradient(135deg, #2f7d32 0%, #4caf50 100%);
  --sg-gradient-accent: linear-gradient(135deg, #ffca28 0%, #f9a825 100%);
  --sg-gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0.28) 100%);
  --sg-font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --sg-font-mono: "SF Mono", "JetBrains Mono", "Fira Code", Consolas, monospace;
  --sg-header-h: 68px;
  --sg-max-w: 1200px;
}

[data-theme="dark"] {
  --sg-bg: #0e1512;
  --sg-bg-alt: #141d18;
  --sg-surface: rgba(26, 38, 31, 0.72);
  --sg-surface-solid: #1a261f;
  --sg-surface-glass: rgba(26, 38, 31, 0.55);
  --sg-border: rgba(76, 175, 80, 0.2);
  --sg-text: #e6efe8;
  --sg-text-secondary: #b3c4b6;
  --sg-text-muted: #8a9c8e;
  --sg-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --sg-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --sg-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --sg-shadow-glow: 0 8px 32px rgba(76, 175, 80, 0.3);
  --sg-gradient-banner: linear-gradient(135deg, #0a1f0c 0%, #1b5e20 40%, #2f7d32 68%, #f9a825 130%);
  --sg-gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.03) 100%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --sg-bg: #0e1512;
    --sg-bg-alt: #141d18;
    --sg-surface: rgba(26, 38, 31, 0.72);
    --sg-surface-solid: #1a261f;
    --sg-surface-glass: rgba(26, 38, 31, 0.55);
    --sg-border: rgba(76, 175, 80, 0.2);
    --sg-text: #e6efe8;
    --sg-text-secondary: #b3c4b6;
    --sg-text-muted: #8a9c8e;
    --sg-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --sg-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --sg-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --sg-shadow-glow: 0 8px 32px rgba(76, 175, 80, 0.3);
    --sg-gradient-banner: linear-gradient(135deg, #0a1f0c 0%, #1b5e20 40%, #2f7d32 68%, #f9a825 130%);
    --sg-gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.03) 100%);
  }
}

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

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

body {
  font-family: var(--sg-font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--sg-text);
  background-color: var(--sg-bg);
  background-image:
    radial-gradient(circle at 10% 0%, rgba(76, 175, 80, 0.08) 0%, transparent 42%),
    radial-gradient(circle at 92% 12%, rgba(255, 202, 40, 0.08) 0%, transparent 38%),
    radial-gradient(circle at 50% 100%, rgba(47, 125, 50, 0.06) 0%, transparent 50%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--sg-transition), color var(--sg-transition);
}

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

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

a:hover {
  color: var(--sg-accent-dark);
}

[data-theme="dark"] a:hover,
:root:not([data-theme="light"]) a:hover {
  color: var(--sg-accent);
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input,
button {
  font-size: inherit;
}

.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;
}

::selection {
  background: var(--sg-primary);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--sg-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ===== Header ===== */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--sg-header-h);
  background: var(--sg-surface);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--sg-border);
  box-shadow: var(--sg-shadow-sm);
  transition: background var(--sg-transition), box-shadow var(--sg-transition), border-color var(--sg-transition);
}

#site-header.is-scrolled {
  box-shadow: var(--sg-shadow-md);
  background: var(--sg-surface-solid);
}

[data-theme="dark"] #site-header.is-scrolled,
:root:not([data-theme="light"]) #site-header.is-scrolled {
  background: rgba(20, 29, 24, 0.92);
}

.header-inner {
  max-width: var(--sg-max-w);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--sg-text);
  white-space: nowrap;
  flex-shrink: 0;
  transition: transform var(--sg-transition);
}

.brand:hover {
  transform: scale(1.04);
  color: var(--sg-text);
}

.brand svg {
  border-radius: 12px;
  box-shadow: var(--sg-shadow-glow);
  transition: transform var(--sg-transition), box-shadow var(--sg-transition);
}

.brand:hover svg {
  transform: rotate(-6deg) scale(1.08);
  box-shadow: 0 10px 36px rgba(47, 125, 50, 0.4);
}

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

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.main-nav a {
  display: block;
  padding: 8px 12px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--sg-text-secondary);
  border-radius: var(--sg-radius-pill);
  white-space: nowrap;
  position: relative;
  transition: color var(--sg-transition-fast), background var(--sg-transition-fast);
}

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

.main-nav a:hover {
  color: var(--sg-primary);
  background: rgba(76, 175, 80, 0.1);
}

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

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

.site-search {
  display: flex;
  align-items: center;
  background: var(--sg-surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--sg-border);
  border-radius: var(--sg-radius-pill);
  overflow: hidden;
  transition: border-color var(--sg-transition), box-shadow var(--sg-transition), transform var(--sg-transition);
}

.site-search:focus-within {
  border-color: var(--sg-primary-light);
  box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.16);
  transform: translateY(-1px);
}

.site-search input {
  width: 150px;
  padding: 8px 14px;
  border: none;
  background: transparent;
  color: var(--sg-text);
  font-size: 0.88rem;
  outline: none;
  transition: width var(--sg-transition);
}

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

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

.site-search button {
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: var(--sg-gradient-primary);
  transition: filter var(--sg-transition-fast), transform var(--sg-transition-fast);
}

.site-search button:hover {
  filter: brightness(1.12);
  transform: scale(1.03);
}

#theme-toggle,
#menu-toggle {
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--sg-text-secondary);
  background: var(--sg-surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--sg-border);
  border-radius: var(--sg-radius-pill);
  transition: color var(--sg-transition-fast), background var(--sg-transition-fast), transform var(--sg-transition-fast), box-shadow var(--sg-transition-fast);
}

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

#menu-toggle {
  display: none;
}

/* ===== Banner ===== */
.banner {
  position: relative;
  max-width: var(--sg-max-w);
  margin: 28px auto 0;
  padding: 0 24px;
}

.banner-slides {
  position: relative;
  border-radius: var(--sg-radius-xl);
  overflow: hidden;
  background: var(--sg-gradient-banner);
  background-size: 200% 200%;
  animation: sgGradientShift 14s ease infinite;
  box-shadow: var(--sg-shadow-lg);
  min-height: 360px;
}

@keyframes sgGradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.banner-slides::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 82% 18%, rgba(255, 202, 40, 0.32) 0%, transparent 46%),
    radial-gradient(circle at 8% 88%, rgba(255, 255, 255, 0.16) 0%, transparent 42%);
  pointer-events: none;
}

.banner-slides::after {
  content: "";
  position: absolute;
  top: -60%;
  left: -20%;
  width: 60%;
  height: 220%;
  background: linear-gradient(100deg, transparent 0%, rgba(255, 255, 255, 0.14) 45%, transparent 90%);
  transform: rotate(12deg);
  animation: sgSheen 7s ease-in-out infinite;
  pointer-events: none;
}

@keyframes sgSheen {
  0%, 100% { transform: translateX(-40%) rotate(12deg); opacity: 0; }
  50% { transform: translateX(320%) rotate(12deg); opacity: 1; }
}

.banner-slide {
  position: relative;
  z-index: 2;
  padding: 56px 56px 64px;
  color: #fff;
  animation: sgFadeUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.banner-slide + .banner-slide {
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

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

.banner-slide h1 {
  font-size: clamp(1.7rem, 3.6vw, 2.7rem);
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
  text-shadow: 0 3px 24px rgba(0, 0, 0, 0.24);
  max-width: 900px;
}

.banner-slide h2 {
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  line-height: 1.35;
  font-weight: 700;
  margin-bottom: 14px;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.2);
}

.banner-slide p {
  font-size: clamp(0.95rem, 1.4vw, 1.08rem);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.92);
  max-width: 820px;
}

.banner-cta {
  display: inline-block;
  margin-top: 26px;
  padding: 14px 34px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--sg-primary-dark);
  background: var(--sg-gradient-accent);
  border-radius: var(--sg-radius-pill);
  box-shadow: 0 8px 28px rgba(255, 202, 40, 0.42);
  position: relative;
  overflow: hidden;
  transition: transform var(--sg-transition), box-shadow var(--sg-transition), color var(--sg-transition);
}

.banner-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 20%, rgba(255, 255, 255, 0.55) 50%, transparent 80%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.banner-cta:hover {
  color: var(--sg-primary-dark);
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 14px 40px rgba(255, 202, 40, 0.6);
}

.banner-cta:hover::before {
  transform: translateX(100%);
}

.banner-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}

.banner-dots span,
.banner-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--sg-border);
  transition: all var(--sg-transition);
}

.banner-dots span.is-active,
.banner-dots button.is-active {
  width: 30px;
  border-radius: var(--sg-radius-pill);
  background: var(--sg-gradient-primary);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  max-width: var(--sg-max-w);
  margin: 22px auto 0;
  padding: 0 24px;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--sg-text-muted);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "›";
  color: var(--sg-text-muted);
  font-size: 1rem;
  line-height: 1;
}

.breadcrumb a {
  color: var(--sg-primary);
  font-weight: 500;
}

.breadcrumb a:hover {
  color: var(--sg-accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ===== Sections ===== */
main > section {
  max-width: var(--sg-max-w);
  margin: 0 auto;
  padding: 48px 24px;
  scroll-margin-top: calc(var(--sg-header-h) + 20px);
}

main > section:not(.banner) {
  position: relative;
}

main > section h2 {
  position: relative;
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--sg-text);
  margin-bottom: 22px;
  padding-left: 20px;
  letter-spacing: 0.4px;
}

main > section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 6px;
  border-radius: var(--sg-radius-pill);
  background: var(--sg-gradient-primary);
  box-shadow: 0 0 16px rgba(47, 125, 50, 0.5);
}

main > section h3 {
  font-size: clamp(1.08rem, 1.9vw, 1.28rem);
  font-weight: 700;
  color: var(--sg-text);
  margin: 26px 0 12px;
  padding-left: 14px;
  border-left: 3px solid var(--sg-accent);
  line-height: 1.4;
}

main > section p {
  color: var(--sg-text-secondary);
  margin-bottom: 14px;
  line-height: 1.85;
}

main > section > p:first-of-type {
  font-size: 1.02rem;
  color: var(--sg-text-secondary);
}

/* ===== Cards / generic blocks ===== */
main > section ul,
main > section ol {
  display: grid;
  gap: 12px;
  margin: 16px 0;
}

main > section ul li,
main > section ol li {
  position: relative;
  padding: 14px 18px 14px 46px;
  background: var(--sg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--sg-border);
  border-radius: var(--sg-radius-md);
  color: var(--sg-text-secondary);
  box-shadow: var(--sg-shadow-sm);
  transition: transform var(--sg-transition), box-shadow var(--sg-transition), border-color var(--sg-transition), background var(--sg-transition);
}

main > section ul li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  width: 12px;
  height: 12px;
  transform: translateY(-50%) rotate(45deg);
  border-radius: 3px;
  background: var(--sg-gradient-primary);
  box-shadow: 0 0 10px rgba(47, 125, 50, 0.4);
}

main > section ol {
  counter-reset: sg-ol;
}

main > section ol li {
  counter-increment: sg-ol;
}

main > section ol li::before {
  content: counter(sg-ol);
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
  background: var(--sg-gradient-primary);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(47, 125, 50, 0.4);
}

main > section ul li:hover,
main > section ol li:hover {
  transform: translateX(6px);
  border-color: var(--sg-primary-light);
  box-shadow: var(--sg-shadow-md);
  background: var(--sg-surface-solid);
}

/* ===== Article cards ===== */
main > section article {
  position: relative;
  padding: 24px 26px;
  margin-bottom: 18px;
  background: var(--sg-surface);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--sg-border);
  border-radius: var(--sg-radius-lg);
  box-shadow: var(--sg-shadow-sm);
  overflow: hidden;
  transition: transform var(--sg-transition), box-shadow var(--sg-transition), border-color var(--sg-transition), background var(--sg-transition);
}

main > section article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--sg-gradient-primary);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--sg-transition);
}

main > section article::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 202, 40, 0.22) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--sg-transition);
  pointer-events: none;
}

main > section article:hover {
  transform: translateY(-5px);
  border-color: var(--sg-primary-light);
  box-shadow: var(--sg-shadow-lg);
  background: var(--sg-surface-solid);
}

main > section article:hover::before {
  transform: scaleY(1);
}

main > section article:hover::after {
  opacity: 1;
}

main > section article h3 {
  margin-top: 0;
  border-left-color: var(--sg-primary);
  transition: color var(--sg-transition-fast);
}

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

main > section article p {
  margin-bottom: 8px;
}

main > section article p:first-of-type {
  font-size: 0.82rem;
  color: var(--sg-text-muted);
  letter-spacing: 0.3px;
}

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

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

main > section article a:hover::after {
  transform: translateX(5px);
}

/* ===== Blockquote ===== */
blockquote {
  position: relative;
  margin: 16px 0;
  padding: 22px 26px 22px 30px;
  background: var(--sg-surface);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--sg-border);
  border-left: 4px solid var(--sg-accent);
  border-radius: var(--sg-radius-md);
  box-shadow: var(--sg-shadow-sm);
  transition: transform var(--sg-transition), box-shadow var(--sg-transition), background var(--sg-transition);
}

blockquote::before {
  content: "\201C";
  position: absolute;
  top: 6px;
  right: 20px;
  font-size: 4rem;
  line-height: 1;
  font-family: Georgia, serif;
  color: var(--sg-primary);
  opacity: 0.16;
  pointer-events: none;
}

blockquote:hover {
  transform: translateY(-3px);
  box-shadow: var(--sg-shadow-md);
  background: var(--sg-surface-solid);
}

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

/* ===== FAQ details ===== */
#faq details {
  margin-bottom: 12px;
  background: var(--sg-surface);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--sg-border);
  border-radius: var(--sg-radius-md);
  box-shadow: var(--sg-shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--sg-transition), border-color var(--sg-transition), transform var(--sg-transition), background var(--sg-transition);
}

#faq details:hover {
  border-color: var(--sg-primary-light);
  box-shadow: var(--sg-shadow-md);
  transform: translateY(-2px);
}

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

#faq summary {
  position: relative;
  padding: 18px 52px 18px 22px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--sg-text);
  cursor: pointer;
  list-style: none;
  transition: color var(--sg-transition-fast), background var(--sg-transition-fast);
}

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

#faq summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--sg-primary);
  border-bottom: 2px solid var(--sg-primary);
  transform: translateY(-70%) rotate(45deg);
  transition: transform var(--sg-transition);
}

#faq details[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

#faq summary:hover {
  color: var(--sg-primary);
  background: rgba(76, 175, 80, 0.06);
}

#faq details p {
  padding: 0 22px 20px;
  margin: 0;
  color: var(--sg-text-secondary);
  animation: sgFadeUp 0.4s ease both;
}

/* ===== Contact / address ===== */
address {
  font-style: normal;
  display: grid;
  gap: 12px;
  margin: 18px 0;
}

address p {
  position: relative;
  padding: 14px 18px 14px 46px;
  background: var(--sg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--sg-border);
  border-radius: var(--sg-radius-md);
  box-shadow: var(--sg-shadow-sm);
  transition: transform var(--sg-transition), box-shadow var(--sg-transition), border-color var(--sg-transition);
}

address p::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  width: 14px;
  height: 14px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: var(--sg-gradient-accent);
  box-shadow: 0 0 12px rgba(255, 202, 40, 0.5);
}

address p:hover {
  transform: translateX(6px);
  border-color: var(--sg-primary-light);
  box-shadow: var(--sg-shadow-md);
}

address a {
  font-weight: 600;
}

/* ===== Sitemap / links ===== */
#sitemap ul,
#links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

#sitemap ul li,
#links ul li {
  padding: 0;
  background: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border: none;
  box-shadow: none;
  transform: none;
}

#sitemap ul li::before,
#links ul li::before {
  display: none;
}

#sitemap a,
#links a {
  display: inline-block;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--sg-text-secondary);
  background: var(--sg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--sg-border);
  border-radius: var(--sg-radius-pill);
  box-shadow: var(--sg-shadow-sm);
  transition: color var(--sg-transition-fast), background var(--sg-transition-fast), transform var(--sg-transition-fast), box-shadow var(--sg-transition-fast), border-color var(--sg-transition-fast);
}

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

#sitemap ul li:hover,
#links ul li:hover {
  transform: none;
  box-shadow: none;
  border: none;
  background: none;
}

/* ===== Footer ===== */
footer {
  position: relative;
  margin-top: 40px;
  padding: 48px 24px 32px;
  text-align: center;
  color: var(--sg-text-muted);
  font-size: 0.88rem;
  background: var(--sg-surface);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-top: 1px solid var(--sg-border);
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(560px, 80%);
  height: 3px;
  border-radius: var(--sg-radius-pill);
  background: var(--sg-gradient-primary);
  opacity: 0.7;
}

footer p {
  margin: 6px 0;
}

footer a {
  color: var(--sg-primary);
  font-weight: 500;
}

footer a:hover {
  color: var(--sg-accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ===== Back to top ===== */
#back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 900;
  width: 52px;
  height: 52px;
  padding: 0;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.15;
  color: #fff;
  background: var(--sg-gradient-primary);
  border-radius: 50%;
  box-shadow: var(--sg-shadow-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.85);
  transition: opacity var(--sg-transition), visibility var(--sg-transition), transform var(--sg-transition), box-shadow var(--sg-transition);
}

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

#back-to-top:hover {
  transform: translateY(-5px) scale(1.08);
  box-shadow: 0 14px 40px rgba(47, 125, 50, 0.5);
}

/* ===== Scroll reveal ===== */
.sg-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);
  will-change: opacity, transform;
}

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

.sg-reveal-delay-1 { transition-delay: 0.08s; }
.sg-reveal-delay-2 { transition-delay: 0.16s; }
.sg-reveal-delay-3 { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .sg-reveal {
    opacity: 1;
    transform: none;
  }
}

/* ===== Responsive ===== */
@media (max-width: 1080px) {
  .site-search input {
    width: 120px;
  }
  .site-search input:focus {
    width: 160px;
  }
  .main-nav a {
    padding: 8px 9px;
    font-size: 0.85rem;
  }
}

@media (max-width: 900px) {
  :root {
    --sg-header-h: 62px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }

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

  .site-search {
    display: none;
  }

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

  .main-nav {
    position: fixed;
    top: var(--sg-header-h);
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    background: var(--sg-surface-solid);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--sg-border);
    box-shadow: var(--sg-shadow-md);
    transition: max-height var(--sg-transition), opacity var(--sg-transition);
    opacity: 0;
  }

  .main-nav.is-open {
    max-height: 70vh;
    overflow-y: auto;
    opacity: 1;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 16px 20px;
    overflow: visible;
  }

  .main-nav a {
    padding: 14px 16px;
    font-size: 0.98rem;
    border-radius: var(--sg-radius-sm);
  }

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

  .banner {
    margin-top: 18px;
    padding: 0 16px;
  }

  .banner-slides {
    border-radius: var(--sg-radius-lg);
    min-height: auto;
  }

  .banner-slide {
    padding: 40px 28px 44px;
  }

  .breadcrumb {
    padding: 0 16px;
  }

  main > section {
    padding: 36px 16px;
  }

  main > section h2 {
    padding-left: 16px;
  }

  main > section h2::before {
    width: 5px;
  }

  #back-to-top {
    right: 16px;
    bottom: 16px;
    width: 46px;
    height: 46px;
    font-size: 0.66rem;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 15px;
    line-height: 1.72;
  }

  .header-inner {
    padding: 0 12px;
    gap: 8px;
  }

  .brand {
    gap: 8px;
  }

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

  .brand span {
    font-size: 0.98rem;
  }

  #theme-toggle {
    padding: 7px 11px;
    font-size: 0.78rem;
  }

  #menu-toggle {
    padding: 7px 12px;
    font-size: 0.78rem;
  }

  .banner {
    padding: 0 12px;
  }

  .banner-slide {
    padding: 32px 20px 36px;
  }

  .banner-slide h1 {
    font-size: 1.4rem;
    margin-bottom: 14px;
  }

  .banner-slide h2 {
    font-size: 1.14rem;
  }

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

  .banner-cta {
    width: 100%;
    text-align: center;
    padding: 13px 20px;
    margin-top: 22px;
  }

  main > section {
    padding: 30px 12px;
  }

  main > section h2 {
    font-size: 1.24rem;
    padding-left: 14px;
    margin-bottom: 18px;
  }

  main > section h3 {
    font-size: 1.02rem;
    padding-left: 11px;
  }

  main > section article,
  blockquote {
    padding: 18px 16px;
    border-radius: var(--sg-radius-md);
  }

  blockquote {
    padding-left: 22px;
  }

  main > section ul li,
  main > section ol li,
  address p {
    padding: 12px 14px 12px 40px;
    border-radius: var(--sg-radius-sm);
  }

  main > section ul li::before {
    left: 15px;
    width: 10px;
    height: 10px;
  }

  main > section ol li::before {
    left: 12px;
    width: 20px;
    height: 20px;
    font-size: 0.72rem;
  }

  address p::before {
    left: 15px;
    width: 12px;
    height: 12px;
  }

  #faq summary {
    padding: 15px 44px 15px 16px;
    font-size: 0.94rem;
  }

  #faq summary::after {
    right: 18px;
  }

  #faq details p {
    padding: 0 16px 18px;
    font-size: 0.92rem;
  }

  #sitemap a,
  #links a {
    padding: 9px 16px;
    font-size: 0.84rem;
  }

  footer {
    padding: 36px 16px 26px;
    font-size: 0.82rem;
  }
}

@media (max-width: 380px) {
  .brand span {
    display: none;
  }
  .banner-slide h1 {
    font-size: 1.26rem;
  }
}

/* ===== Print ===== */
@media print {
  #site-header,
  #back-to-top,
  .banner-dots,
  .site-search,
  #theme-toggle,
  #menu-toggle {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
  }
  .banner-slides {
    background: #2f7d32 !important;
    animation: none;
  }
  main > section article,
  #faq details,
  blockquote,
  main > section ul li,
  main > section ol li {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }
}