:root {
  --brand: #f97316;
  --brand-dark: #ea580c;
  --brand-light: #fb923c;
  --brand-soft: #fff7ed;
  --brand-glow: rgba(249, 115, 22, 0.35);
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-green: #22c55e;

  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --bg-soft: #f1f5f9;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --text: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-faint: #94a3b8;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --header-bg: rgba(255, 255, 255, 0.82);
  --footer-bg: #0f172a;
  --footer-text: #cbd5e1;
  --footer-muted: #94a3b8;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 999px;

  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow: 0 6px 20px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 24px 56px rgba(15, 23, 42, 0.14);
  --shadow-brand: 0 10px 30px rgba(249, 115, 22, 0.28);

  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-blur: saturate(180%) blur(18px);

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --header-h: 64px;
  --container: 1200px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition: 0.3s var(--ease-out);

  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #0b1120;
  --bg-alt: #0f172a;
  --bg-soft: #1e293b;
  --surface: #111c30;
  --surface-2: #16233a;
  --text: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-faint: #64748b;
  --border: #1e293b;
  --border-strong: #334155;

  --header-bg: rgba(11, 17, 32, 0.82);
  --footer-bg: #060b16;
  --footer-text: #94a3b8;
  --footer-muted: #64748b;

  --brand-soft: rgba(249, 115, 22, 0.12);

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.45);
  --shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 24px 56px rgba(0, 0, 0, 0.6);
  --shadow-brand: 0 10px 30px rgba(249, 115, 22, 0.35);

  --glass-bg: rgba(17, 28, 48, 0.55);
  --glass-border: rgba(148, 163, 184, 0.18);

  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120;
    --bg-alt: #0f172a;
    --bg-soft: #1e293b;
    --surface: #111c30;
    --surface-2: #16233a;
    --text: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-faint: #64748b;
    --border: #1e293b;
    --border-strong: #334155;
    --header-bg: rgba(11, 17, 32, 0.82);
    --footer-bg: #060b16;
    --footer-text: #94a3b8;
    --footer-muted: #64748b;
    --brand-soft: rgba(249, 115, 22, 0.12);
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.45);
    --shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.55);
    --shadow-lg: 0 24px 56px rgba(0, 0, 0, 0.6);
    --shadow-brand: 0 10px 30px rgba(249, 115, 22, 0.35);
    --glass-bg: rgba(17, 28, 48, 0.55);
    --glass-border: rgba(148, 163, 184, 0.18);
    color-scheme: dark;
  }
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 0.4s var(--ease-out), color 0.4s var(--ease-out);
}

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

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

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

[data-theme="dark"] a {
  color: var(--brand-light);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.15rem, 2.2vw, 1.4rem); }
h4 { font-size: 1.1rem; }

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

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.4em;
}

li {
  margin-bottom: 0.4em;
  color: var(--text-secondary);
}

strong { color: var(--text); font-weight: 700; }

time {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-muted);
}

address { font-style: normal; }

.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(--brand);
  color: #fff;
}

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

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-alt); }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-alt);
}
::-webkit-scrollbar-thumb:hover { background: var(--brand); }

#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--header-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition), background-color var(--transition);
}

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

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  transition: transform var(--transition);
}

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

.logo svg {
  filter: drop-shadow(0 4px 10px var(--brand-glow));
  transition: transform 0.5s var(--ease-spring);
}

.logo:hover svg { transform: rotate(-8deg) scale(1.08); }

.logo-text {
  font-size: 1.15rem;
  font-weight: 800;
  background: linear-gradient(120deg, var(--brand) 0%, var(--brand-light) 50%, var(--brand) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  white-space: nowrap;
  animation: logoShine 6s linear infinite;
}

@keyframes logoShine {
  to { background-position: 200% center; }
}

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

#main-nav ul {
  display: flex;
  align-items: 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: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: color var(--transition), background-color var(--transition);
}

#main-nav a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  background: linear-gradient(90deg, var(--brand), var(--brand-light));
  border-radius: var(--radius-full);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

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

#main-nav a:hover::after { transform: scaleX(1); }

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

#site-search {
  display: flex;
  align-items: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 4px 4px 4px 14px;
  transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
}

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

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

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

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

#site-search button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

#site-search button:hover {
  transform: scale(1.08) rotate(6deg);
  box-shadow: var(--shadow-brand);
}

#theme-toggle,
#mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--text-secondary);
  cursor: pointer;
  transition: transform var(--transition), background-color var(--transition),
    border-color var(--transition), color var(--transition);
}

#theme-toggle:hover,
#mobile-menu-btn:hover {
  transform: translateY(-2px) rotate(-10deg);
  background: var(--brand-soft);
  border-color: var(--brand);
  color: var(--brand);
}

#mobile-menu-btn { display: none; }

#mobile-nav {
  display: none;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border);
  animation: slideDown 0.35s var(--ease-out);
}

#mobile-nav[hidden] { display: none; }

#mobile-nav ul {
  list-style: none;
  margin: 0;
  padding: 8px 16px 16px;
}

#mobile-nav li { margin: 0; }

#mobile-nav a {
  display: block;
  padding: 12px 14px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-weight: 500;
  transition: background-color var(--transition), color var(--transition), padding-left var(--transition);
}

#mobile-nav a:hover {
  background: var(--brand-soft);
  color: var(--brand);
  padding-left: 22px;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

#breadcrumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 20px 0;
}

#breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.85rem;
}

#breadcrumb li { margin: 0; color: var(--text-muted); }

#breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--text-faint);
}

#breadcrumb a { color: var(--text-muted); }
#breadcrumb a:hover { color: var(--brand); }
#breadcrumb [aria-current="page"] { color: var(--brand); font-weight: 600; }

main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px 60px;
}

main > section {
  margin-top: 56px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

main > section > h2 {
  position: relative;
  padding-left: 18px;
  margin-bottom: 24px;
}

main > section > h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 6px;
  border-radius: var(--radius-full);
  background: linear-gradient(180deg, var(--brand), var(--brand-light), var(--accent-purple));
  box-shadow: 0 0 12px var(--brand-glow);
}

main > section > h2::after {
  content: "";
  display: block;
  width: 64px;
  height: 3px;
  margin-top: 12px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--brand), transparent);
}

#hero {
  position: relative;
  margin-top: 28px !important;
  padding: clamp(28px, 5vw, 56px) clamp(20px, 4vw, 48px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 12% 18%, rgba(249, 115, 22, 0.18), transparent 45%),
    radial-gradient(circle at 88% 12%, rgba(139, 92, 246, 0.16), transparent 45%),
    radial-gradient(circle at 78% 92%, rgba(59, 130, 246, 0.14), transparent 45%),
    linear-gradient(135deg, var(--brand-soft) 0%, var(--surface) 45%, var(--bg-alt) 100%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(rgba(249, 115, 22, 0.09) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.7;
  pointer-events: none;
  animation: heroDrift 24s linear infinite;
}

@keyframes heroDrift {
  from { background-position: 0 0; }
  to { background-position: 260px 260px; }
}

.hero-content { position: relative; z-index: 1; }

#hero-title {
  background: linear-gradient(120deg, var(--text) 0%, var(--brand-dark) 55%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  margin-bottom: 18px;
}

.hero-lead {
  font-size: clamp(0.95rem, 1.6vw, 1.08rem);
  color: var(--text-secondary);
  max-width: 62ch;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 32px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition),
    background-color var(--transition), color var(--transition);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 55%, var(--brand-light) 100%);
  background-size: 200% auto;
  box-shadow: var(--shadow-brand);
  border: none;
}

.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s var(--ease-out);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-3px) scale(1.02);
  background-position: right center;
  box-shadow: 0 16px 38px rgba(249, 115, 22, 0.42);
}

.btn-primary:hover::after { left: 130%; }

.btn-secondary {
  color: var(--brand-dark);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1.5px solid var(--brand);
}

.btn-secondary:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  transform: translateY(-3px);
  box-shadow: var(--shadow-brand);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

.hero-stats li {
  margin: 0;
  text-align: center;
  padding: 6px 4px;
  border-right: 1px solid var(--border);
}

.hero-stats li:last-child { border-right: none; }

.hero-stats strong {
  display: block;
  font-size: clamp(1.15rem, 2.6vw, 1.7rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--brand), var(--accent-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  line-height: 1.2;
}

.hero-stats span {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 2px;
}

#banner-carousel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  aspect-ratio: 2 / 1;
}

.carousel-track {
  display: flex;
  height: 100%;
  transition: transform 0.7s var(--ease-out);
  will-change: transform;
}

.carousel-slide {
  flex: 0 0 100%;
  height: 100%;
  position: relative;
}

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

.carousel-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(15, 23, 42, 0.28));
  pointer-events: none;
}

.carousel-dots {
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  z-index: 2;
}

.carousel-dots button {
  width: 10px;
  height: 10px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: var(--text-faint);
  cursor: pointer;
  transition: all var(--transition);
}

.carousel-dots button[aria-selected="true"] {
  width: 28px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--brand), var(--brand-light));
  box-shadow: 0 0 12px var(--brand-glow);
}

.carousel-dots button:hover {
  background: var(--brand);
  transform: scale(1.2);
}

#brand article,
#products article,
#solutions article,
#cases article,
#news article,
#articles article,
#howto article {
  position: relative;
  padding: 24px 26px;
  margin-bottom: 18px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition), background-color var(--transition);
  overflow: hidden;
}

#brand article::before,
#products article::before,
#solutions article::before,
#cases article::before,
#news article::before,
#articles article::before,
#howto article::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--brand), var(--brand-light));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

#brand article:hover,
#products article:hover,
#solutions article:hover,
#cases article:hover,
#news article:hover,
#articles article:hover,
#howto article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand);
}

#brand article:hover::before,
#products article:hover::before,
#solutions article:hover::before,
#cases article:hover::before,
#news article:hover::before,
#articles article:hover::before,
#howto article:hover::before {
  transform: scaleY(1);
}

#brand article h3,
#products article h3,
#solutions article h3,
#cases article h3,
#news article h3,
#articles article h3,
#howto article h3 {
  margin-bottom: 10px;
}

#news article h3 a,
#articles article h3 a {
  display: inline-block;
  background-image: linear-gradient(90deg, var(--brand), var(--brand-light));
  background-size: 0% 2px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size var(--transition), color var(--transition);
}

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

#news article time,
#articles article time {
  display: block;
  margin-bottom: 10px;
}

#articles article > a:last-child {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--brand);
  transition: gap var(--transition), color var(--transition);
}

#articles article > a:last-child:hover { gap: 10px; }

#advantages ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  list-style: none;
  padding: 0;
  margin: 0;
}

#advantages li {
  position: relative;
  margin: 0;
  padding: 26px 24px 24px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

#advantages li::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--brand-glow), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition), transform var(--transition);
}

#advantages li:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand);
}

#advantages li:hover::after {
  opacity: 1;
  transform: scale(1.3);
}

#advantages li h3 {
  position: relative;
  padding-left: 46px;
  margin-bottom: 12px;
  z-index: 1;
}

#advantages li h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand-light));
  box-shadow: 0 6px 16px var(--brand-glow);
}

#advantages li h3::after {
  content: "✓";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 800;
}

#advantages li p { position: relative; z-index: 1; margin-bottom: 0; }

#industry ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  list-style: none;
  padding: 0;
}

#industry li {
  margin: 0;
  padding: 20px 22px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border);
  border-left: 4px solid var(--brand);
  transition: transform var(--transition), box-shadow var(--transition),
    border-left-color var(--transition);
}

#industry li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow);
  border-left-color: var(--accent-purple);
}

#testimonials blockquote {
  position: relative;
  margin: 0 0 18px;
  padding: 26px 28px 22px 64px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

#testimonials blockquote::before {
  content: "\201C";
  position: absolute;
  left: 20px;
  top: 8px;
  font-size: 4.5rem;
  line-height: 1;
  font-family: Georgia, serif;
  color: var(--brand);
  opacity: 0.5;
}

#testimonials blockquote:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

#testimonials blockquote p {
  font-size: 1.02rem;
  color: var(--text-secondary);
  font-style: italic;
}

#testimonials blockquote footer {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

#testimonials blockquote footer::before {
  content: "— ";
  color: var(--brand);
}

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

#howto ol > li {
  position: relative;
  counter-increment: step;
  margin-bottom: 18px;
  padding: 22px 24px 20px 76px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

#howto ol > li::before {
  content: counter(step);
  position: absolute;
  left: 22px;
  top: 22px;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-weight: 800;
  font-size: 1rem;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  box-shadow: 0 6px 16px var(--brand-glow);
  transition: transform var(--transition);
}

#howto ol > li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand);
}

#howto ol > li:hover::before {
  transform: scale(1.12) rotate(-8deg);
}

#howto ol > li h4 {
  margin: 0 0 8px;
  color: var(--brand-dark);
}

[data-theme="dark"] #howto ol > li h4 { color: var(--brand-light); }

#howto ol > li p { margin-bottom: 0; }

#faq details {
  margin-bottom: 12px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

#faq details[open] {
  border-color: var(--brand);
  box-shadow: var(--shadow);
}

#faq summary {
  position: relative;
  padding: 18px 56px 18px 22px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: background-color var(--transition), color var(--transition);
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--brand);
  background: var(--brand-soft);
  transition: transform var(--transition), background-color var(--transition),
    color var(--transition);
}

#faq details[open] summary {
  background: var(--brand-soft);
  color: var(--brand-dark);
}

[data-theme="dark"] #faq details[open] summary { color: var(--brand-light); }

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

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

#faq details p {
  padding: 4px 22px 20px;
  margin: 0;
  font-size: 0.94rem;
  color: var(--text-secondary);
  animation: fadeInUp 0.4s var(--ease-out);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

#contact address {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  padding: 26px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

#contact address p {
  margin: 0;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.92rem;
  transition: transform var(--transition), border-color var(--transition),
    box-shadow var(--transition);
}

#contact address p:hover {
  transform: translateY(-3px);
  border-color: var(--brand);
  box-shadow: var(--shadow);
}

#contact address strong {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--brand);
  margin-bottom: 4px;
}

#map-placeholder {
  margin-top: 20px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

#map-placeholder svg {
  width: 100%;
  height: auto;
  transition: transform 0.6s var(--ease-out);
}

#map-placeholder:hover svg { transform: scale(1.04); }

#security,
#service,
#sitemap,
#links,
#copyright-notice,
#privacy-summary,
#disclaimer-summary {
  padding: 26px 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}

#security p,
#service ul,
#sitemap ul,
#links ul { margin-bottom: 0; }

#service ul {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

#service li {
  position: relative;
  margin: 0;
  padding: 16px 18px 16px 46px;
  border-radius: var(--radius);
  background: var(--surface-2);
  border: 1px solid var(--border);
  transition: transform var(--transition), border-color var(--transition),
    background-color var(--transition);
}

#service li::before {
  content: "★";
  position: absolute;
  left: 16px;
  top: 15px;
  color: var(--brand);
  font-size: 1rem;
  transition: transform var(--transition);
}

#service li:hover {
  transform: translateY(-3px);
  border-color: var(--brand);
  background: var(--brand-soft);
}

#service li:hover::before { transform: rotate(72deg) scale(1.2); }

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

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

#sitemap a,
#links a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface-2);
  border: 1px solid var(--border);
  transition: transform var(--transition), background-color var(--transition),
    color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

#sitemap a:hover,
#links a:hover {
  transform: translateY(-3px);
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  border-color: transparent;
  box-shadow: var(--shadow-brand);
}

#site-footer {
  background:
    radial-gradient(circle at 15% 0%, rgba(249, 115, 22, 0.16), transparent 45%),
    radial-gradient(circle at 85% 100%, rgba(139, 92, 246, 0.14), transparent 45%),
    var(--footer-bg);
  color: var(--footer-text);
  margin-top: 60px;
  position: relative;
  overflow: hidden;
}

#site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--brand-light), var(--accent-purple), var(--brand));
  background-size: 300% 100%;
  animation: footerGlow 8s linear infinite;
}

@keyframes footerGlow {
  to { background-position: 300% 0; }
}

.footer-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 52px 20px 36px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 36px;
}

.footer-brand svg {
  margin-bottom: 14px;
  filter: drop-shadow(0 6px 16px var(--brand-glow));
  transition: transform var(--transition);
}

.footer-brand:hover svg { transform: rotate(-8deg) scale(1.08); }

.footer-brand p {
  color: var(--footer-text);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.footer-brand p strong {
  color: #fff;
  font-size: 1.05rem;
}

.footer-brand p:last-child {
  color: var(--footer-muted);
  font-size: 0.82rem;
}

.footer-nav h3,
.footer-contact h3 {
  position: relative;
  font-size: 0.95rem;
  color: #fff;
  margin-bottom: 16px;
  padding-bottom: 10px;
}

.footer-nav h3::after,
.footer-contact h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 2px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--brand), transparent);
}

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

.footer-nav li { margin-bottom: 8px; }

.footer-nav a {
  position: relative;
  display: inline-block;
  color: var(--footer-text);
  font-size: 0.88rem;
  padding-left: 0;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-nav a::before {
  content: "→";
  position: absolute;
  left: -14px;
  opacity: 0;
  color: var(--brand);
  transition: opacity var(--transition), left var(--transition);
}

.footer-nav a:hover {
  color: var(--brand-light);
  padding-left: 14px;
}

.footer-nav a:hover::before { opacity: 1; left: 0; }

.footer-contact address p {
  margin-bottom: 8px;
  font-size: 0.88rem;
  color: var(--footer-text);
}

.footer-contact a {
  color: var(--brand-light);
  transition: color var(--transition);
}

.footer-contact a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.18);
  padding: 24px 20px 32px;
  text-align: center;
}

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

.footer-bottom p:last-child { margin-bottom: 0; }

.footer-bottom time { color: var(--footer-muted); font-size: 0.8rem; }

#back-to-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 900;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  box-shadow: var(--shadow-brand);
  cursor: pointer;
  transition: transform var(--transition), opacity var(--transition),
    box-shadow var(--transition);
}

#back-to-top[hidden] {
  display: flex;
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px) scale(0.8);
}

#back-to-top:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: 0 16px 36px rgba(249, 115, 22, 0.5);
}

#back-to-top svg { transition: transform var(--transition); }
#back-to-top:hover svg { transform: translateY(-2px); }

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

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

@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) {
  #main-nav { display: none; }
  #mobile-menu-btn { display: flex; }
  #mobile-nav { display: block; }
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  #hero {
    grid-template-columns: 1fr;
  }
  #banner-carousel {
    aspect-ratio: 16 / 9;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-stats li:nth-child(2) { border-right: none; }
  .hero-stats li:nth-child(1),
  .hero-stats li:nth-child(2) {
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
  }
  .hero-stats li:nth-child(3),
  .hero-stats li:nth-child(4) { padding-top: 12px; }
}

@media (max-width: 640px) {
  :root { --header-h: 58px; }

  body { font-size: 15px; }

  .header-inner { padding: 0 14px; gap: 10px; }

  .logo-text { font-size: 1rem; }

  #site-search { display: none; }

  main { padding: 0 14px 44px; }

  main > section { margin-top: 40px; }

  #hero {
    padding: 24px 18px;
    border-radius: var(--radius-lg);
    gap: 26px;
  }

  .hero-actions { gap: 10px; }
  .btn-primary,
  .btn-secondary {
    flex: 1 1 auto;
    padding: 12px 20px;
    font-size: 0.9rem;
  }

  .hero-stats { padding: 14px 10px; gap: 6px; }
  .hero-stats strong { font-size: 1.15rem; }
  .hero-stats span { font-size: 0.72rem; }

  #brand article,
  #products article,
  #solutions article,
  #cases article,
  #news article,
  #articles article,
  #howto article {
    padding: 20px 18px;
    border-radius: var(--radius);
  }

  #advantages ul { grid-template-columns: 1fr; gap: 14px; }

  #contact address { padding: 18px; gap: 10px; }

  #howto ol > li {
    padding: 20px 18px 18px 66px;
  }

  #howto ol > li::before {
    left: 16px;
    top: 18px;
    width: 34px;
    height: 34px;
  }

  #faq summary { padding: 16px 50px 16px 18px; font-size: 0.95rem; }

  #faq details p { padding: 4px 18px 18px; }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 26px;
    padding: 40px 18px 28px;
  }

  .footer-bottom { padding: 20px 16px 28px; }

  #back-to-top {
    right: 14px;
    bottom: 16px;
    width: 42px;
    height: 42px;
  }

  #testimonials blockquote {
    padding: 22px 20px 18px 52px;
  }

  #testimonials blockquote::before {
    font-size: 3.4rem;
    left: 14px;
  }
}

@media (max-width: 380px) {
  .logo-text { display: none; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
}

@media print {
  #site-header,
  #mobile-nav,
  #back-to-top,
  .hero-actions,
  #banner-carousel,
  #site-footer { display: none !important; }
  body { background: #fff; color: #000; }
  main { max-width: 100%; padding: 0; }
  a { color: #000; text-decoration: underline; }
}