:root {
  --lemon-primary: #8BC34A;
  --lemon-primary-dark: #558B2F;
  --lemon-primary-light: #AED581;
  --lemon-accent: #DCE775;
  --lemon-bg: #f7fbf2;
  --lemon-bg-alt: #ffffff;
  --lemon-card: rgba(255, 255, 255, 0.72);
  --lemon-glass: rgba(255, 255, 255, 0.55);
  --lemon-glass-border: rgba(139, 195, 74, 0.35);
  --lemon-text: #26301f;
  --lemon-text-soft: #5a6650;
  --lemon-text-muted: #8a9480;
  --lemon-border: rgba(139, 195, 74, 0.22);
  --lemon-shadow: 0 8px 28px rgba(85, 139, 47, 0.12);
  --lemon-shadow-hover: 0 14px 40px rgba(85, 139, 47, 0.22);
  --lemon-radius: 16px;
  --lemon-radius-sm: 10px;
  --lemon-radius-lg: 24px;
  --lemon-transition: 0.32s cubic-bezier(0.22, 0.9, 0.32, 1);
  --lemon-gradient-banner: linear-gradient(120deg, #d4f0a8 0%, #a8e063 35%, #8BC34A 65%, #6aa832 100%);
  --lemon-gradient-soft: linear-gradient(135deg, rgba(220, 231, 117, 0.35) 0%, rgba(139, 195, 74, 0.18) 100%);
  --lemon-header-bg: rgba(255, 255, 255, 0.78);
  --lemon-footer-bg: linear-gradient(180deg, rgba(241, 248, 233, 0.9), rgba(220, 237, 200, 0.95));
  --lemon-btn-bg: linear-gradient(135deg, #9ccc65, #7cb342);
  --lemon-btn-text: #ffffff;
  --lemon-scroll-thumb: rgba(139, 195, 74, 0.55);
}

body.dark {
  --lemon-primary: #9ccc65;
  --lemon-primary-dark: #AED581;
  --lemon-primary-light: #7cb342;
  --lemon-accent: #c0ca33;
  --lemon-bg: #10150e;
  --lemon-bg-alt: #171d14;
  --lemon-card: rgba(30, 38, 26, 0.72);
  --lemon-glass: rgba(24, 31, 21, 0.6);
  --lemon-glass-border: rgba(156, 204, 101, 0.28);
  --lemon-text: #e4ebdd;
  --lemon-text-soft: #b3bfa8;
  --lemon-text-muted: #7f8c74;
  --lemon-border: rgba(156, 204, 101, 0.2);
  --lemon-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
  --lemon-shadow-hover: 0 14px 40px rgba(0, 0, 0, 0.6);
  --lemon-gradient-banner: linear-gradient(120deg, #2c3d1c 0%, #3d5524 40%, #4f6d2c 70%, #2f421d 100%);
  --lemon-gradient-soft: linear-gradient(135deg, rgba(156, 204, 101, 0.12) 0%, rgba(76, 110, 46, 0.18) 100%);
  --lemon-header-bg: rgba(18, 24, 15, 0.82);
  --lemon-footer-bg: linear-gradient(180deg, rgba(22, 29, 19, 0.95), rgba(15, 20, 13, 0.98));
  --lemon-btn-bg: linear-gradient(135deg, #7cb342, #558b2f);
  --lemon-btn-text: #f4fbe9;
  --lemon-scroll-thumb: rgba(156, 204, 101, 0.4);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.85;
  color: var(--lemon-text);
  background: var(--lemon-bg);
  background-image: radial-gradient(circle at 12% 8%, rgba(220, 231, 117, 0.18) 0%, transparent 42%),
    radial-gradient(circle at 88% 92%, rgba(139, 195, 74, 0.16) 0%, transparent 46%);
  background-attachment: fixed;
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
}

body.dark {
  background-image: radial-gradient(circle at 12% 8%, rgba(156, 204, 101, 0.08) 0%, transparent 42%),
    radial-gradient(circle at 88% 92%, rgba(124, 179, 66, 0.08) 0%, transparent 46%);
}

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

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--lemon-scroll-thumb);
  border-radius: 10px;
  border: 2px solid transparent;
  background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--lemon-primary);
  background-clip: content-box;
}

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

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

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

h1,
h2,
h3,
h4 {
  line-height: 1.45;
  color: var(--lemon-primary-dark);
  font-weight: 700;
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  margin: 0 0 0.6em;
}

h2 {
  font-size: clamp(1.25rem, 2.4vw, 1.55rem);
  margin: 2.2em 0 0.9em;
  padding-left: 16px;
  position: relative;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 5px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--lemon-primary-light), var(--lemon-primary));
  box-shadow: 0 0 12px rgba(139, 195, 74, 0.5);
}

h3 {
  font-size: 1.15rem;
  margin: 1.7em 0 0.6em;
  color: var(--lemon-text);
}

h4 {
  font-size: 1.02rem;
  margin: 1.4em 0 0.5em;
  color: var(--lemon-text-soft);
}

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

strong {
  color: var(--lemon-primary-dark);
  font-weight: 700;
}

.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;
}

#site-header {
  position: relative;
  z-index: 1000;
  background: var(--lemon-header-bg);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--lemon-glass-border);
  transition: box-shadow var(--lemon-transition), background var(--lemon-transition), transform var(--lemon-transition);
}

#site-header.sticky {
  position: sticky;
  top: 0;
  box-shadow: 0 6px 24px rgba(85, 139, 47, 0.16);
  animation: headerSlideDown 0.4s ease;
}

@keyframes headerSlideDown {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

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

.brand svg {
  filter: drop-shadow(0 4px 10px rgba(139, 195, 74, 0.4));
  transition: transform var(--lemon-transition);
}

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

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: linear-gradient(120deg, var(--lemon-primary-dark), var(--lemon-primary), var(--lemon-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

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

#main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 2px 4px;
  font-size: 0.88rem;
}

#main-nav li {
  margin: 0;
}

#main-nav a {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--lemon-text-soft);
  position: relative;
  transition: color var(--lemon-transition), background var(--lemon-transition), transform var(--lemon-transition);
}

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

#main-nav a:hover,
#main-nav a:focus-visible {
  color: var(--lemon-primary-dark);
  background: var(--lemon-gradient-soft);
  transform: translateY(-1px);
}

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

.header-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  flex-shrink: 0;
}

#site-search {
  display: flex;
  gap: 6px;
  align-items: center;
}

#site-search input {
  padding: 8px 14px;
  border: 1px solid var(--lemon-glass-border);
  border-radius: 999px;
  background: var(--lemon-glass);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--lemon-text);
  width: 170px;
  font-size: 0.86rem;
  outline: none;
  transition: border-color var(--lemon-transition), box-shadow var(--lemon-transition), width var(--lemon-transition);
}

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

#site-search input:focus {
  border-color: var(--lemon-primary);
  box-shadow: 0 0 0 3px rgba(139, 195, 74, 0.22);
  width: 200px;
}

#site-search button,
#theme-toggle,
#menu-toggle {
  padding: 8px 14px;
  border: 1px solid var(--lemon-glass-border);
  background: var(--lemon-glass);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--lemon-primary-dark);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.84rem;
  font-weight: 600;
  font-family: inherit;
  transition: transform var(--lemon-transition), box-shadow var(--lemon-transition), background var(--lemon-transition), color var(--lemon-transition);
  white-space: nowrap;
}

#site-search button:hover,
#theme-toggle:hover,
#menu-toggle:hover {
  background: var(--lemon-btn-bg);
  color: var(--lemon-btn-text);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(139, 195, 74, 0.35);
}

#site-search button:active,
#theme-toggle:active,
#menu-toggle:active {
  transform: translateY(0) scale(0.97);
}

#menu-toggle {
  display: none;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 60px;
  position: relative;
}

section {
  margin-bottom: 44px;
  scroll-margin-top: 90px;
}

.hero {
  position: relative;
  margin-top: 28px;
  padding: 40px 34px 34px;
  border-radius: var(--lemon-radius-lg);
  background: var(--lemon-gradient-banner);
  overflow: hidden;
  box-shadow: var(--lemon-shadow);
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 18% 20%, rgba(255, 255, 255, 0.42) 0%, transparent 34%),
    radial-gradient(circle at 82% 78%, rgba(255, 255, 255, 0.28) 0%, transparent 38%);
  z-index: -1;
}

.hero::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -40px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.35), transparent 70%);
  z-index: -1;
  pointer-events: none;
}

body.dark .hero {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.55);
}

body.dark .hero::before {
  background-image: radial-gradient(circle at 18% 20%, rgba(156, 204, 101, 0.14) 0%, transparent 34%),
    radial-gradient(circle at 82% 78%, rgba(124, 179, 66, 0.12) 0%, transparent 38%);
}

.hero h1 {
  color: #2e4a12;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.35);
}

body.dark .hero h1 {
  color: #eaf5d8;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
}

.hero .lead,
.hero p {
  color: #34491f;
}

body.dark .hero .lead,
body.dark .hero p {
  color: #d3e2c2;
}

.lead {
  font-size: 1.05rem;
  font-weight: 500;
}

.banner {
  position: relative;
  margin: 26px 0 22px;
  border-radius: var(--lemon-radius);
  overflow: hidden;
  border: 1px solid var(--lemon-glass-border);
  background: var(--lemon-glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: var(--lemon-shadow);
}

.banner-slide {
  display: none;
  animation: bannerFade 0.6s ease;
}

.banner-slide svg {
  width: 100%;
  height: auto;
  display: block;
}

@keyframes bannerFade {
  from {
    opacity: 0;
    transform: scale(1.02);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.banner-dots {
  position: absolute;
  bottom: 12px;
  right: 14px;
  display: flex;
  gap: 8px;
  z-index: 3;
}

.banner-dots button {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--lemon-glass-border);
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--lemon-primary-dark);
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 700;
  font-family: inherit;
  transition: transform var(--lemon-transition), background var(--lemon-transition), color var(--lemon-transition), box-shadow var(--lemon-transition);
}

.banner-dots button:hover {
  transform: scale(1.12);
  box-shadow: 0 4px 12px rgba(85, 139, 47, 0.3);
}

.banner-dots button[aria-selected="true"] {
  background: var(--lemon-btn-bg);
  color: var(--lemon-btn-text);
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(85, 139, 47, 0.45);
}

.stats {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
}

.stats li {
  background: var(--lemon-card);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--lemon-glass-border);
  border-radius: var(--lemon-radius-sm);
  padding: 14px 16px;
  font-size: 0.88rem;
  color: #3a4a28;
  text-align: center;
  transition: transform var(--lemon-transition), box-shadow var(--lemon-transition), border-color var(--lemon-transition);
}

body.dark .stats li {
  color: var(--lemon-text-soft);
}

.stats li:hover {
  transform: translateY(-4px);
  box-shadow: var(--lemon-shadow-hover);
  border-color: var(--lemon-primary);
}

.stats .num {
  display: block;
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--lemon-primary-dark);
  line-height: 1.2;
  margin-bottom: 2px;
  font-variant-numeric: tabular-nums;
}

#breadcrumb {
  margin: 18px 0 8px;
}

#breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 14px;
  margin: 0;
  font-size: 0.84rem;
  color: var(--lemon-text-muted);
  background: var(--lemon-card);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--lemon-glass-border);
  border-radius: 999px;
  width: fit-content;
}

#breadcrumb li {
  display: flex;
  align-items: center;
}

#breadcrumb li + li::before {
  content: "›";
  margin-right: 6px;
  color: var(--lemon-primary);
  font-weight: 700;
}

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

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

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

#about p,
#history p,
#culture p,
#products p,
#advantages p,
#solutions p,
#applications p,
#cases p,
#news p,
#articles p,
#knowledge p,
#howto p,
#faq p,
#contact p,
#legal p {
  background: var(--lemon-card);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--lemon-border);
  border-radius: var(--lemon-radius-sm);
  padding: 16px 20px;
  margin-bottom: 14px;
  transition: box-shadow var(--lemon-transition), transform var(--lemon-transition), border-color var(--lemon-transition);
}

#about p:hover,
#history p:hover,
#culture p:hover,
#products p:hover,
#advantages p:hover,
#solutions p:hover,
#applications p:hover,
#cases p:hover,
#news p:hover,
#articles p:hover,
#knowledge p:hover,
#howto p:hover,
#contact p:hover,
#legal p:hover {
  border-color: var(--lemon-primary);
  box-shadow: var(--lemon-shadow);
  transform: translateY(-2px);
}

.org-info {
  background: var(--lemon-card);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--lemon-glass-border);
  border-radius: var(--lemon-radius);
  padding: 20px 24px;
  box-shadow: var(--lemon-shadow);
  margin-top: 18px;
}

.org-info h3 {
  margin-top: 0;
  color: var(--lemon-primary-dark);
}

.org-info ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0 24px;
}

.org-info li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--lemon-border);
  font-size: 0.92rem;
  color: var(--lemon-text-soft);
}

.org-info li:last-child {
  border-bottom: none;
}

.timeline {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  counter-reset: step;
  position: relative;
}

.timeline li {
  position: relative;
  padding: 0 0 22px 48px;
  margin-left: 18px;
  border-left: 2px solid var(--lemon-border);
  transition: border-color var(--lemon-transition);
}

.timeline li:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.timeline li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: -17px;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--lemon-btn-bg);
  color: var(--lemon-btn-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(139, 195, 74, 0.4);
  transition: transform var(--lemon-transition), box-shadow var(--lemon-transition);
}

.timeline li:hover::before {
  transform: scale(1.12);
  box-shadow: 0 6px 20px rgba(139, 195, 74, 0.6);
}

.timeline li:hover {
  border-left-color: var(--lemon-primary);
}

.timeline h3 {
  margin: 0 0 6px;
  font-size: 1.08rem;
}

.timeline p {
  margin: 0;
  font-size: 0.94rem;
  background: transparent;
  border: none;
  padding: 0;
  box-shadow: none;
}

.timeline p:hover {
  transform: none;
  box-shadow: none;
  border: none;
}

#culture ul,
#advantages ul,
#solutions ul,
#applications ul,
#howto ul,
#sitemap ul,
#links ul,
#contact ul,
#legal ul {
  padding-left: 0;
  list-style: none;
}

#culture ul li,
#howto ul li,
#contact ul li {
  position: relative;
  padding: 8px 12px 8px 30px;
  margin-bottom: 6px;
  background: var(--lemon-card);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--lemon-border);
  border-radius: var(--lemon-radius-sm);
  font-size: 0.94rem;
  color: var(--lemon-text-soft);
  transition: transform var(--lemon-transition), border-color var(--lemon-transition), box-shadow var(--lemon-transition);
}

#culture ul li::before,
#howto ul li::before,
#contact ul li::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lemon-primary);
  transform: translateY(-50%);
  box-shadow: 0 0 8px rgba(139, 195, 74, 0.6);
}

#culture ul li:hover,
#howto ul li:hover,
#contact ul li:hover {
  transform: translateX(4px);
  border-color: var(--lemon-primary);
  box-shadow: var(--lemon-shadow);
}

blockquote {
  margin: 14px 0;
  padding: 18px 22px;
  background: var(--lemon-card);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--lemon-glass-border);
  border-left: 5px solid var(--lemon-primary);
  border-radius: 0 var(--lemon-radius) var(--lemon-radius) 0;
  box-shadow: var(--lemon-shadow);
  position: relative;
  transition: transform var(--lemon-transition), box-shadow var(--lemon-transition);
}

blockquote::before {
  content: "\201C";
  position: absolute;
  top: -8px;
  right: 18px;
  font-size: 3.4rem;
  line-height: 1;
  color: var(--lemon-primary);
  opacity: 0.28;
  font-family: Georgia, serif;
}

blockquote:hover {
  transform: translateY(-3px);
  box-shadow: var(--lemon-shadow-hover);
}

blockquote p {
  margin: 0;
  font-size: 0.98rem;
  color: var(--lemon-text-soft);
  background: transparent;
  border: none;
  padding: 0;
  box-shadow: none;
}

blockquote p:hover {
  transform: none;
  box-shadow: none;
  border: none;
}

blockquote footer {
  margin-top: 10px;
  font-size: 0.84rem;
  color: var(--lemon-primary-dark);
  font-weight: 600;
}

article {
  background: var(--lemon-card);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--lemon-border);
  border-radius: var(--lemon-radius);
  padding: 20px 24px;
  margin-bottom: 18px;
  box-shadow: var(--lemon-shadow);
  transition: transform var(--lemon-transition), box-shadow var(--lemon-transition), border-color var(--lemon-transition);
  position: relative;
  overflow: hidden;
}

article::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--lemon-primary-light), var(--lemon-primary));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--lemon-transition);
}

article:hover {
  transform: translateY(-4px);
  box-shadow: var(--lemon-shadow-hover);
  border-color: var(--lemon-primary);
}

article:hover::after {
  transform: scaleY(1);
}

article h3 {
  margin-top: 0;
  font-size: 1.12rem;
}

article p {
  background: transparent;
  border: none;
  padding: 0;
  box-shadow: none;
  font-size: 0.94rem;
}

article p:hover {
  transform: none;
  box-shadow: none;
  border: none;
}

article .meta {
  font-size: 0.8rem;
  color: var(--lemon-text-muted);
  margin-bottom: 10px;
}

article a {
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--lemon-gradient-soft);
  border: 1px solid var(--lemon-glass-border);
  transition: background var(--lemon-transition), color var(--lemon-transition), transform var(--lemon-transition), box-shadow var(--lemon-transition);
}

article a:hover {
  background: var(--lemon-btn-bg);
  color: var(--lemon-btn-text);
  transform: translateX(4px);
  box-shadow: 0 4px 14px rgba(139, 195, 74, 0.35);
}

details {
  background: var(--lemon-card);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--lemon-border);
  border-radius: var(--lemon-radius-sm);
  padding: 4px 20px;
  margin-bottom: 12px;
  box-shadow: var(--lemon-shadow);
  transition: border-color var(--lemon-transition), box-shadow var(--lemon-transition), background var(--lemon-transition);
}

details:hover {
  border-color: var(--lemon-primary);
  box-shadow: var(--lemon-shadow-hover);
}

details[open] {
  border-color: var(--lemon-primary);
  background: var(--lemon-glass);
}

summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--lemon-primary-dark);
  padding: 14px 0;
  font-size: 0.98rem;
  list-style: none;
  position: relative;
  padding-right: 32px;
  transition: color var(--lemon-transition);
  outline: none;
}

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

summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--lemon-gradient-soft);
  border: 1px solid var(--lemon-glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--lemon-primary-dark);
  transition: transform var(--lemon-transition), background var(--lemon-transition), color var(--lemon-transition);
}

details[open] summary::after {
  content: "−";
  background: var(--lemon-btn-bg);
  color: var(--lemon-btn-text);
  transform: translateY(-50%) rotate(180deg);
}

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

details p {
  margin: 0 0 16px;
  font-size: 0.93rem;
  background: transparent;
  border: none;
  padding: 0;
  box-shadow: none;
  color: var(--lemon-text-soft);
  animation: faqOpen 0.35s ease;
}

details p:hover {
  transform: none;
  box-shadow: none;
  border: none;
}

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

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.contact-grid > div {
  background: var(--lemon-card);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--lemon-glass-border);
  border-radius: var(--lemon-radius);
  padding: 22px 24px;
  box-shadow: var(--lemon-shadow);
  transition: transform var(--lemon-transition), box-shadow var(--lemon-transition), border-color var(--lemon-transition);
}

.contact-grid > div:hover {
  transform: translateY(-4px);
  box-shadow: var(--lemon-shadow-hover);
  border-color: var(--lemon-primary);
}

.contact-grid h3 {
  margin-top: 0;
  color: var(--lemon-primary-dark);
}

.contact-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.contact-grid li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--lemon-border);
  font-size: 0.92rem;
  color: var(--lemon-text-soft);
}

.contact-grid li:last-child {
  border-bottom: none;
}

#sitemap ul.sitemap-list {
  columns: 3;
  column-gap: 24px;
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
}

#sitemap ul.sitemap-list li {
  padding: 6px 0;
  break-inside: avoid;
}

#sitemap ul.sitemap-list a {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--lemon-gradient-soft);
  border: 1px solid var(--lemon-glass-border);
  font-size: 0.88rem;
  transition: transform var(--lemon-transition), background var(--lemon-transition), color var(--lemon-transition), box-shadow var(--lemon-transition);
}

#sitemap ul.sitemap-list a:hover {
  background: var(--lemon-btn-bg);
  color: var(--lemon-btn-text);
  transform: translateX(4px);
  box-shadow: 0 4px 14px rgba(139, 195, 74, 0.35);
}

#links ul {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

#links ul li {
  margin: 0;
}

#links ul a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--lemon-card);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--lemon-glass-border);
  font-size: 0.9rem;
  transition: transform var(--lemon-transition), background var(--lemon-transition), color var(--lemon-transition), box-shadow var(--lemon-transition);
}

#links ul a:hover {
  background: var(--lemon-btn-bg);
  color: var(--lemon-btn-text);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(139, 195, 74, 0.35);
}

#legal {
  background: var(--lemon-gradient-soft);
  border: 1px solid var(--lemon-glass-border);
  border-radius: var(--lemon-radius-lg);
  padding: 26px 30px;
  box-shadow: var(--lemon-shadow);
}

#legal h2 {
  margin-top: 0;
}

#legal h3 {
  color: var(--lemon-primary-dark);
}

#site-footer {
  background: var(--lemon-footer-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--lemon-glass-border);
  padding: 40px 20px 16px;
  font-size: 0.88rem;
  position: relative;
  overflow: hidden;
}

#site-footer::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 195, 74, 0.16), transparent 70%);
  pointer-events: none;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  position: relative;
  z-index: 1;
}

.footer-inner h2,
.footer-inner h3 {
  font-size: 1rem;
  margin: 0 0 12px;
  color: var(--lemon-primary-dark);
  position: relative;
  padding-bottom: 8px;
}

.footer-inner h2::after,
.footer-inner h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 3px;
  border-radius: 3px;
  background: var(--lemon-btn-bg);
}

.footer-inner p {
  font-size: 0.88rem;
  color: var(--lemon-text-soft);
  margin: 0;
  background: transparent;
  border: none;
  padding: 0;
  box-shadow: none;
}

.footer-inner p:hover {
  transform: none;
  box-shadow: none;
  border: none;
}

.footer-inner ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-inner li {
  padding: 4px 0;
  color: var(--lemon-text-soft);
}

.footer-inner a {
  position: relative;
  transition: color var(--lemon-transition), padding-left var(--lemon-transition);
}

.footer-inner a::before {
  content: "›";
  position: absolute;
  left: -12px;
  opacity: 0;
  color: var(--lemon-primary);
  transition: opacity var(--lemon-transition), left var(--lemon-transition);
}

.footer-inner a:hover {
  color: var(--lemon-primary-dark);
  padding-left: 6px;
}

.footer-inner a:hover::before {
  opacity: 1;
  left: -4px;
}

.copyright {
  max-width: 1200px;
  margin: 28px auto 0;
  padding-top: 16px;
  border-top: 1px solid var(--lemon-border);
  text-align: center;
  color: var(--lemon-text-muted);
  font-size: 0.8rem;
  position: relative;
  z-index: 1;
}

#back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid var(--lemon-glass-border);
  border-radius: 50%;
  background: var(--lemon-btn-bg);
  color: var(--lemon-btn-text);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.9);
  pointer-events: none;
  transition: opacity var(--lemon-transition), transform var(--lemon-transition), visibility var(--lemon-transition), box-shadow var(--lemon-transition);
  font-size: 0.72rem;
  font-weight: 700;
  font-family: inherit;
  z-index: 2000;
  box-shadow: 0 6px 20px rgba(85, 139, 47, 0.4);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  line-height: 1.1;
}

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

#back-to-top:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 10px 28px rgba(85, 139, 47, 0.55);
}

#back-to-top:active {
  transform: translateY(0) scale(0.96);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.9, 0.32, 1), transform 0.7s cubic-bezier(0.22, 0.9, 0.32, 1);
  will-change: opacity, transform;
}

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

.reveal:nth-child(even) {
  transform: translateY(36px);
}

.reveal:nth-child(even).visible {
  transform: translateY(0);
}

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

@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;
  }
}

@media (max-width: 1024px) {
  .header-inner {
    gap: 12px;
    padding: 10px 16px;
  }
  #site-search input {
    width: 140px;
  }
  #site-search input:focus {
    width: 160px;
  }
  #sitemap ul.sitemap-list {
    columns: 2;
  }
  .hero {
    padding: 32px 26px 28px;
  }
}

@media (max-width: 820px) {
  body {
    font-size: 15px;
  }
  .header-inner {
    padding: 10px 14px;
    gap: 10px;
  }
  #main-nav {
    display: none;
    width: 100%;
    order: 3;
    flex-basis: 100%;
    background: var(--lemon-glass);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border: 1px solid var(--lemon-glass-border);
    border-radius: var(--lemon-radius);
    margin-top: 6px;
    padding: 8px;
    box-shadow: var(--lemon-shadow);
    animation: navSlide 0.32s ease;
  }
  #main-nav.open {
    display: block;
  }
  @keyframes navSlide {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  #main-nav ul {
    flex-direction: column;
    gap: 0;
  }
  #main-nav li {
    border-bottom: 1px solid var(--lemon-border);
  }
  #main-nav li:last-child {
    border-bottom: none;
  }
  #main-nav a {
    display: block;
    padding: 10px 14px;
    border-radius: var(--lemon-radius-sm);
  }
  #main-nav a::after {
    display: none;
  }
  #menu-toggle {
    display: inline-block;
  }
  .header-tools {
    margin-left: auto;
  }
  #site-search input {
    width: 120px;
  }
  #site-search input:focus {
    width: 140px;
  }
  main {
    padding: 0 14px 48px;
  }
  section {
    margin-bottom: 34px;
    scroll-margin-top: 76px;
  }
  .hero {
    padding: 26px 20px 22px;
    border-radius: var(--lemon-radius);
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .stats li {
    padding: 12px 10px;
  }
  .stats .num {
    font-size: 1.3rem;
  }
  .banner-dots {
    bottom: 8px;
    right: 8px;
    gap: 6px;
  }
  .banner-dots button {
    width: 24px;
    height: 24px;
    font-size: 0.7rem;
  }
  .org-info {
    padding: 16px 18px;
  }
  .org-info ul {
    grid-template-columns: 1fr;
  }
  .timeline li {
    padding-left: 40px;
    margin-left: 14px;
  }
  article {
    padding: 16px 18px;
  }
  details {
    padding: 2px 16px;
  }
  #legal {
    padding: 20px 20px;
  }
  #sitemap ul.sitemap-list {
    columns: 1;
  }
  .footer-inner {
    gap: 22px;
  }
  #back-to-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    gap: 8px;
  }
  .brand-name {
    font-size: 1.08rem;
  }
  .brand svg {
    width: 32px;
    height: 32px;
  }
  #site-search input {
    width: 96px;
    padding: 7px 10px;
  }
  #site-search input:focus {
    width: 116px;
  }
  #site-search button,
  #theme-toggle,
  #menu-toggle {
    padding: 7px 11px;
    font-size: 0.78rem;
  }
  .hero {
    padding: 22px 16px 18px;
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  blockquote {
    padding: 14px 16px;
  }
  article a {
    padding: 5px 12px;
    font-size: 0.82rem;
  }
  #links ul {
    gap: 8px;
  }
  #links ul a {
    padding: 6px 14px;
    font-size: 0.84rem;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  #legal {
    padding: 18px 16px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (hover: none) {
  article:hover,
  .stats li:hover,
  blockquote:hover,
  .contact-grid > div:hover,
  details:hover {
    transform: none;
  }
}