:root {
  --brand: #f5a623;
  --brand-dark: #e8860c;
  --brand-light: #ffd27a;
  --brand-soft: rgba(245, 166, 35, 0.12);
  --accent: #ff6b6b;
  --accent-2: #7c5cff;
  --bg: #fbf8f3;
  --bg-alt: #f3ede2;
  --surface: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --surface-glass-strong: rgba(255, 255, 255, 0.88);
  --text: #221d16;
  --text-soft: #5b5347;
  --text-muted: #8b8172;
  --border: rgba(34, 29, 22, 0.1);
  --border-strong: rgba(34, 29, 22, 0.18);
  --shadow-sm: 0 2px 8px rgba(60, 42, 10, 0.06);
  --shadow-md: 0 10px 30px rgba(60, 42, 10, 0.1);
  --shadow-lg: 0 24px 60px rgba(60, 42, 10, 0.16);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --grad-banner: linear-gradient(135deg, #ffb347 0%, #f5a623 38%, #ff7e5f 72%, #7c5cff 100%);
  --grad-brand: linear-gradient(135deg, #f5a623, #ff7e5f);
  --grad-text: linear-gradient(120deg, #e8860c, #ff6b6b 55%, #7c5cff);
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

[data-theme="dark"] {
  --bg: #12100d;
  --bg-alt: #1a1712;
  --surface: #1e1a15;
  --surface-glass: rgba(30, 26, 21, 0.66);
  --surface-glass-strong: rgba(30, 26, 21, 0.9);
  --text: #f5efe4;
  --text-soft: #c9c0b1;
  --text-muted: #93897a;
  --border: rgba(245, 239, 228, 0.12);
  --border-strong: rgba(245, 239, 228, 0.22);
  --brand-soft: rgba(245, 166, 35, 0.16);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.6);
  --grad-banner: linear-gradient(135deg, #4a3410 0%, #6b3f0d 35%, #7a2f2f 70%, #3b2a70 100%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12100d;
    --bg-alt: #1a1712;
    --surface: #1e1a15;
    --surface-glass: rgba(30, 26, 21, 0.66);
    --surface-glass-strong: rgba(30, 26, 21, 0.9);
    --text: #f5efe4;
    --text-soft: #c9c0b1;
    --text-muted: #93897a;
    --border: rgba(245, 239, 228, 0.12);
    --border-strong: rgba(245, 239, 228, 0.22);
    --brand-soft: rgba(245, 166, 35, 0.16);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.6);
    --grad-banner: linear-gradient(135deg, #4a3410 0%, #6b3f0d 35%, #7a2f2f 70%, #3b2a70 100%);
  }
}

*,
*::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: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  background-image: radial-gradient(circle at 12% 0%, rgba(245, 166, 35, 0.14), transparent 42%),
    radial-gradient(circle at 88% 8%, rgba(124, 92, 255, 0.12), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(255, 107, 107, 0.08), transparent 45%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease);
}

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

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

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

h1,
h2,
h3,
h4 {
  margin: 0 0 0.6em;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

h1 {
  font-size: clamp(1.7rem, 3.6vw, 2.9rem);
}

h2 {
  font-size: clamp(1.4rem, 2.6vw, 2.1rem);
}

h3 {
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
}

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

ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.3em;
  color: var(--text-soft);
}

li {
  margin-bottom: 0.45em;
}

li::marker {
  color: var(--brand);
}

blockquote {
  margin: 0 0 1em;
  padding: 14px 20px;
  border-left: 4px solid var(--brand);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--brand-soft);
  color: var(--text-soft);
  font-style: italic;
}

blockquote p {
  margin: 0;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

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

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

#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-glass);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid var(--border);
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

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

.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.brand a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}

.brand svg {
  transition: transform 0.5s var(--ease);
  filter: drop-shadow(0 4px 10px rgba(245, 166, 35, 0.35));
}

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

.brand-name {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-slogan {
  margin: 0;
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

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

#main-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

#main-nav li {
  margin: 0;
}

#main-nav a {
  position: relative;
  display: block;
  padding: 8px 12px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-soft);
  border-radius: var(--radius-sm);
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

#main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 2px;
  background: var(--grad-brand);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width 0.3s var(--ease);
}

#main-nav a:hover,
#main-nav a:focus-visible {
  color: var(--brand-dark);
  background: var(--brand-soft);
}

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

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

#site-search {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 4px 4px 14px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

#site-search:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--brand-soft);
}

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

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

#site-search button {
  border: 0;
  cursor: pointer;
  padding: 7px 16px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  background: var(--grad-brand);
  border-radius: 999px;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

#site-search button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(245, 166, 35, 0.4);
}

#theme-toggle,
#menu-toggle {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
    border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

#theme-toggle:hover,
#menu-toggle:hover {
  transform: translateY(-2px) rotate(6deg);
  border-color: var(--brand);
  box-shadow: var(--shadow-sm);
}

#menu-toggle {
  display: none;
}

.breadcrumb {
  max-width: 1240px;
  margin: 0 auto;
  padding: 16px 24px 0;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb li {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.breadcrumb a {
  color: var(--text-soft);
  font-weight: 600;
}

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

.breadcrumb [aria-current="page"] {
  color: var(--brand-dark);
  font-weight: 700;
}

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

main > section {
  margin-top: 72px;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

main > section > h2 {
  position: relative;
  padding-left: 18px;
  margin-bottom: 28px;
}

main > section > h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 6px;
  border-radius: 3px;
  background: var(--grad-brand);
}

main > section > article {
  position: relative;
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 30px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
    border-color 0.35s var(--ease);
}

main > section > article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

main > section > article h3 {
  display: inline-block;
  position: relative;
  padding-bottom: 6px;
  margin-bottom: 14px;
}

main > section > article h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 42px;
  height: 3px;
  border-radius: 2px;
  background: var(--grad-brand);
  transition: width 0.35s var(--ease);
}

main > section > article:hover h3::after {
  width: 100%;
}

main > section > article ul,
main > section > article ol {
  padding-left: 1.4em;
}

#hero {
  margin-top: 24px !important;
}

.hero-slider {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: clamp(32px, 6vw, 72px) clamp(24px, 5vw, 64px) clamp(64px, 8vw, 88px);
  background: var(--grad-banner);
  background-size: 200% 200%;
  animation: bannerShift 16s ease infinite;
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}

.hero-slider::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 82% 18%, rgba(255, 255, 255, 0.35), transparent 45%),
    radial-gradient(circle at 12% 88%, rgba(255, 255, 255, 0.18), transparent 42%);
  z-index: -1;
}

.hero-slider::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.5;
  z-index: -1;
  mask-image: linear-gradient(180deg, transparent, #000 40%, transparent);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 40%, transparent);
}

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

.slide {
  display: none;
  max-width: 760px;
  animation: slideIn 0.6s var(--ease);
}

.slide.active {
  display: block;
}

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

.slide h1,
.slide h2 {
  color: #fff;
  text-shadow: 0 2px 18px rgba(90, 50, 0, 0.28);
  margin-bottom: 0.5em;
}

.slide p {
  color: rgba(255, 255, 255, 0.95);
  font-size: clamp(0.95rem, 1.4vw, 1.08rem);
  max-width: 680px;
  text-shadow: 0 1px 10px rgba(90, 50, 0, 0.2);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #4a2c00;
  background: #fff;
  border-radius: 999px;
  box-shadow: 0 10px 26px rgba(60, 30, 0, 0.28);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease),
    background 0.28s var(--ease);
}

.btn-primary::after {
  content: "→";
  transition: transform 0.28s var(--ease);
}

.btn-primary:hover {
  color: #4a2c00;
  transform: translateY(-3px) scale(1.02);
  background: var(--brand-light);
  box-shadow: 0 16px 34px rgba(60, 30, 0, 0.34);
}

.btn-primary:hover::after {
  transform: translateX(5px);
}

.slider-controls {
  position: absolute;
  left: clamp(24px, 5vw, 64px);
  bottom: 28px;
  display: flex;
  gap: 10px;
  z-index: 2;
}

.slider-controls button {
  width: 34px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.45);
  transition: width 0.35s var(--ease), background 0.35s var(--ease);
}

.slider-controls button:hover {
  background: rgba(255, 255, 255, 0.75);
}

.slider-controls button.active {
  width: 56px;
  background: #fff;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: -44px;
  padding: 0 clamp(12px, 3vw, 40px);
  position: relative;
  z-index: 3;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 22px 12px;
  text-align: center;
  background: var(--surface-glass-strong);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  backdrop-filter: blur(18px) saturate(180%);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: transform 0.32s var(--ease), box-shadow 0.32s var(--ease);
}

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

.stat-num {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 900;
  line-height: 1.1;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.02em;
}

#products article ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 10px 24px;
  list-style: none;
  padding-left: 0;
}

#products article ul li {
  position: relative;
  padding: 12px 16px 12px 42px;
  background: var(--brand-soft);
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  transition: transform 0.25s var(--ease), background 0.25s var(--ease);
}

#products article ul li::before {
  content: "✓";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  font-size: 0.72rem;
  font-weight: 900;
  color: #fff;
  background: var(--grad-brand);
  border-radius: 50%;
}

#products article ul li:hover {
  transform: translateX(4px);
  background: rgba(245, 166, 35, 0.2);
}

#cases blockquote {
  position: relative;
  padding: 18px 22px 18px 54px;
  font-style: normal;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--brand);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

#cases blockquote::before {
  content: "“";
  position: absolute;
  left: 16px;
  top: 2px;
  font-size: 2.6rem;
  line-height: 1;
  font-family: Georgia, serif;
  color: var(--brand);
  opacity: 0.6;
}

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

#news article {
  position: relative;
  padding-left: 34px;
}

#news article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 34px;
  bottom: 34px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--brand), transparent);
}

#articles article h3 a {
  color: var(--text);
  background-image: linear-gradient(var(--brand), var(--brand));
  background-size: 0% 2px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 0.35s var(--ease), color 0.25s var(--ease);
}

#articles article h3 a:hover {
  color: var(--brand-dark);
  background-size: 100% 2px;
}

#articles article > a:last-child {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  transition: background 0.28s var(--ease), transform 0.28s var(--ease),
    color 0.28s var(--ease);
}

#articles article > a:last-child::after {
  content: "→";
  transition: transform 0.28s var(--ease);
}

#articles article > a:last-child:hover {
  background: var(--grad-brand);
  color: #fff;
  transform: translateY(-2px);
}

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

#articles article p:nth-of-type(1) {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-alt);
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}

#faq details {
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s var(--ease), border-color 0.3s var(--ease),
    background 0.3s var(--ease);
  overflow: hidden;
}

#faq details:hover {
  border-color: var(--brand);
  box-shadow: var(--shadow-md);
}

#faq details[open] {
  background: var(--surface-glass-strong);
  border-color: var(--brand);
}

#faq summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 18px 56px 18px 22px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  transition: color 0.25s var(--ease);
  user-select: none;
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--brand-dark);
  background: var(--brand-soft);
  border-radius: 50%;
  transition: transform 0.35s var(--ease), background 0.35s var(--ease),
    color 0.35s var(--ease);
}

#faq details[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
  background: var(--grad-brand);
  color: #fff;
}

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

#faq details p {
  padding: 0 22px 20px;
  margin: 0;
  animation: fadeUp 0.4s var(--ease);
}

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

#howto ol {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
}

#howto ol li {
  counter-increment: step;
  position: relative;
  padding: 14px 18px 14px 62px;
  margin-bottom: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-color 0.3s var(--ease);
}

#howto ol li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  font-size: 0.9rem;
  font-weight: 900;
  color: #fff;
  background: var(--grad-brand);
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(245, 166, 35, 0.35);
}

#howto ol li:hover {
  transform: translateX(6px);
  border-color: var(--brand);
  box-shadow: var(--shadow-sm);
}

#howto ul li {
  padding-left: 4px;
}

#contact article p {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  padding: 10px 0;
  margin: 0;
  border-bottom: 1px dashed var(--border);
}

#contact article p:last-child {
  border-bottom: 0;
}

#sitemap ul,
#links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
}

#sitemap li,
#links li {
  margin: 0;
}

#sitemap a,
#links a {
  display: inline-block;
  padding: 9px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-soft);
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: transform 0.26s var(--ease), color 0.26s var(--ease),
    background 0.26s var(--ease), border-color 0.26s var(--ease),
    box-shadow 0.26s var(--ease);
}

#sitemap a:hover,
#links a:hover {
  color: #fff;
  background: var(--grad-brand);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 10px 22px rgba(245, 166, 35, 0.35);
}

#site-footer {
  position: relative;
  margin-top: 40px;
  padding: 64px 24px 32px;
  background: linear-gradient(180deg, transparent, var(--bg-alt) 30%);
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
  gap: 40px;
}

.footer-brand p {
  margin: 0 0 8px;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.footer-brand p strong {
  font-size: 1.15rem;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-links h3,
.footer-legal h3,
.footer-contact h3 {
  font-size: 0.95rem;
  margin-bottom: 14px;
  color: var(--text);
}

.footer-links ul,
.footer-legal ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li,
.footer-legal li {
  margin-bottom: 8px;
}

.footer-links a,
.footer-legal a {
  color: var(--text-soft);
  font-size: 0.9rem;
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.footer-links a:hover,
.footer-legal a:hover {
  color: var(--brand-dark);
  padding-left: 5px;
}

.footer-contact p {
  margin: 0 0 8px;
  font-size: 0.88rem;
  color: var(--text-soft);
  word-break: break-word;
}

.footer-bottom {
  max-width: 1240px;
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  margin: 0 0 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.7;
}

#back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  background: var(--grad-brand);
  border: 0;
  border-radius: 50%;
  box-shadow: 0 10px 26px rgba(245, 166, 35, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.9);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease),
    visibility 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

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

#back-to-top:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 16px 34px rgba(245, 166, 35, 0.55);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}

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

.reveal-delay-1 {
  transition-delay: 0.08s;
}

.reveal-delay-2 {
  transition-delay: 0.16s;
}

.reveal-delay-3 {
  transition-delay: 0.24s;
}

@media (max-width: 1080px) {
  #main-nav {
    display: none;
  }

  #main-nav.is-open {
    display: block;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    padding: 12px 20px 20px;
    background: var(--surface-glass-strong);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    animation: fadeUp 0.3s var(--ease);
  }

  #main-nav.is-open ul {
    flex-direction: column;
    gap: 2px;
  }

  #main-nav.is-open a {
    padding: 12px 14px;
    font-size: 1rem;
  }

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

  #menu-toggle {
    display: grid;
  }

  .header-inner {
    position: relative;
    flex-wrap: wrap;
  }

  #search-input {
    width: 120px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 760px) {
  :root {
    --header-h: 64px;
    --radius-lg: 18px;
    --radius-xl: 22px;
  }

  body {
    font-size: 15px;
  }

  .header-inner {
    padding: 10px 16px;
    gap: 10px;
  }

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

  .brand-slogan {
    display: none;
  }

  .header-tools {
    margin-left: auto;
    gap: 8px;
  }

  #site-search {
    order: 3;
    width: 100%;
    margin-top: 8px;
  }

  #site-search input {
    flex: 1;
    width: 100%;
  }

  #theme-toggle,
  #menu-toggle {
    width: 38px;
    height: 38px;
  }

  .breadcrumb {
    padding: 12px 16px 0;
  }

  main {
    padding: 0 16px 56px;
  }

  main > section {
    margin-top: 48px;
  }

  main > section > article {
    padding: 20px 18px;
    margin-bottom: 16px;
  }

  .hero-slider {
    padding: 32px 20px 64px;
  }

  .slide p {
    font-size: 0.94rem;
  }

  .btn-primary {
    padding: 12px 24px;
    font-size: 0.92rem;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: -32px;
    padding: 0 8px;
  }

  .stat {
    padding: 16px 8px;
  }

  .stat-label {
    font-size: 0.74rem;
  }

  .slider-controls {
    left: 20px;
    bottom: 20px;
  }

  #products article ul {
    grid-template-columns: 1fr;
  }

  #howto ol li {
    padding: 12px 14px 12px 54px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  #site-footer {
    padding: 48px 16px 28px;
  }

  #back-to-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 420px) {
  .hero-stats {
    grid-template-columns: 1fr 1fr;
  }

  .stat-num {
    font-size: 1.35rem;
  }

  #faq summary {
    padding: 16px 50px 16px 16px;
    font-size: 0.94rem;
  }

  #faq details p {
    padding: 0 16px 16px;
  }
}

@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;
  }

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

@media print {
  #site-header,
  #back-to-top,
  .slider-controls,
  #site-search,
  #theme-toggle,
  #menu-toggle {
    display: none !important;
  }

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

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