:root {
  --color-brand: #d80c18;
  --color-brand-dark: #b90510;
  --color-brand-soft: #f5f7fa;
  --color-brand-pale: #ffffff;
  --color-ink: #1d2530;
  --color-muted: #6b7480;
  --color-light: #f4f6f9;
  --color-line: #e6ebf2;
  --color-white: #ffffff;
  --shadow-card: 0 18px 48px rgba(154, 44, 48, 0.1);
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
  line-height: 1.6;
  background: var(--color-white);
}

.page-main {
  padding-top: var(--header-height);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(1280px, calc(100% - 64px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(237, 240, 245, 0.95);
  backdrop-filter: blur(12px);
  transition: box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 12px 32px rgba(31, 43, 61, 0.08);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  gap: 42px;
}

.brand {
  flex: 0 0 auto;
}

.brand img {
  width: 174px;
  height: 56px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex: 0 1 auto;
  height: 100%;
  gap: 46px;
}

.site-nav > a,
.nav-item > a {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  color: #263241;
  font-size: 16px;
  font-weight: 400;
  line-height: 1;
  white-space: nowrap;
}

.site-nav > a:hover,
.nav-item:hover > a,
.site-nav > a.active,
.nav-item.active > a {
  color: #111827;
}

.site-nav > a::before,
.nav-item > a::before {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--color-brand);
  opacity: 0;
  transform: scaleX(0);
  transform-origin: center;
  transition: opacity 0.2s ease, transform 0.2s ease;
  content: "";
}

.site-nav > a:hover::before,
.nav-item:hover > a::before,
.site-nav > a.active::before,
.nav-item.active > a::before {
  opacity: 1;
  transform: scaleX(1);
}

.nav-item {
  height: 100%;
}

.nav-item.has-dropdown > a::after {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-left: 6px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  content: "";
}

.mega-menu {
  position: absolute;
  top: var(--header-height);
  left: 20px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: 488px;
  padding: 24px;
  gap: 24px;
  border: 1px solid var(--color-line);
  border-top: 0;
  border-radius: 0 0 8px 8px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 18px 46px rgba(35, 45, 62, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}

.has-dropdown:hover .mega-menu,
.has-dropdown.is-open .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-column h3 {
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
  color: #9aa4b2;
  font-size: 14px;
}

.mega-column a {
  display: block;
  padding: 7px 0;
}

.mega-column strong {
  display: block;
  color: #303948;
  font-size: 15px;
}

.mega-column span {
  display: block;
  margin-top: 2px;
  color: #8b95a3;
  font-size: 12px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
  margin-left: auto;
}

.phone-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #8a94a3;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.phone-icon {
  color: var(--color-brand);
  font-size: 16px;
}

.trial-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 18px;
  border-radius: 4px;
  color: var(--color-white);
  background: var(--color-brand);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: 0 10px 22px rgba(216, 12, 24, 0.2);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background: var(--color-white);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--color-ink);
}

.hero {
  padding: calc(var(--header-height) + 108px) 0 112px;
  overflow: hidden;
  background: var(--color-white);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
  gap: 76px;
  align-items: center;
}

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

.eyebrow {
  margin: 0 0 14px;
  color: var(--color-brand);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  color: #15202f;
  font-size: clamp(34px, 4.2vw, 52px);
  line-height: 1.18;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 700px;
  margin: 30px 0 0;
  color: #647080;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  gap: 18px;
  margin-top: 46px;
}

.hero-visual {
  overflow: hidden;
  border: 1px solid rgba(216, 12, 24, 0.1);
  border-radius: 8px;
  background: var(--color-white);
  box-shadow: var(--shadow-card);
}

.hero-visual img {
  width: 100%;
  min-height: 470px;
  object-fit: cover;
  opacity: 0.88;
  mix-blend-mode: multiply;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 158px;
  height: 52px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn.primary {
  color: var(--color-white);
  background: var(--color-brand);
  box-shadow: 0 14px 28px rgba(216, 12, 24, 0.22);
}

.btn.soft {
  color: var(--color-brand);
  border-color: #d9e0ea;
  background: var(--color-brand-soft);
}

.section {
  padding: 124px 0;
}

.about-band,
.industries-section {
  background: var(--color-white);
}

.about-band {
  padding: 0 0 112px;
  background: var(--color-white);
}

.about-hero {
  width: 100vw;
  height: 420px;
  margin-left: calc(50% - 50vw);
  overflow: hidden;
  background: var(--color-light);
}

.about-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.company-info {
  max-width: 1080px;
  margin: 92px auto 0;
}

.company-info h1,
.company-info h2 {
  margin: 0 0 34px;
  color: #182434;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.2;
  text-align: center;
  letter-spacing: 0;
}

.company-copy {
  color: #243144;
  font-size: 18px;
  line-height: 2;
  text-align: justify;
}

.company-copy p {
  margin: 0;
}

.company-copy p + p {
  margin-top: 22px;
}

.about-stats {
  margin-top: 72px;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
  gap: 58px;
  align-items: center;
}

.section-copy h2,
.section-heading h1,
.section-heading h2,
.compact-band h1,
.compact-band h2 {
  margin: 0;
  color: #182434;
  font-size: clamp(32px, 3.6vw, 46px);
  line-height: 1.24;
  letter-spacing: 0;
}

.section-copy p:not(.eyebrow),
.section-heading p:not(.eyebrow),
.compact-band p:not(.eyebrow) {
  margin: 28px 0 0;
  color: var(--color-muted);
  font-size: 17px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 34px;
}

.stats-grid article {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 210px;
  padding: 36px 24px;
  text-align: center;
  border: 1px solid #dfe5ee;
  border-radius: 8px;
  background: var(--color-white);
  box-shadow: none;
}

.stats-grid strong {
  display: block;
  color: var(--color-brand);
  font-size: 60px;
  line-height: 1;
  transform-origin: center bottom;
}

.stats-grid strong.count-bounce {
  animation: numberBounce 0.72s cubic-bezier(0.2, 0.9, 0.2, 1.35);
}

@keyframes numberBounce {
  0% {
    transform: translateY(18px) scale(0.82);
  }
  48% {
    transform: translateY(-8px) scale(1.08);
  }
  72% {
    transform: translateY(3px) scale(0.98);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}

.stats-grid span {
  display: block;
  margin-top: 22px;
  color: #101a2a;
  font-size: 16px;
  font-weight: 700;
}

.stats-band {
  padding: 96px 0;
  background: var(--color-light);
}

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

.aos-init {
  opacity: 0;
  transform: translateY(34px);
  transition:
    opacity 0.7s ease var(--aos-delay, 0ms),
    transform 0.7s ease var(--aos-delay, 0ms);
  will-change: opacity, transform;
}

.aos-init.aos-animate {
  opacity: 1;
  transform: translateY(0);
}

.product-card.aos-init,
.industry-row.aos-init {
  transform: translateY(38px) scale(0.985);
}

.product-card.aos-init.aos-animate,
.industry-row.aos-init.aos-animate {
  transform: translateY(0) scale(1);
}

.products-section,
.news-section {
  background: var(--color-light);
}

.section-heading {
  max-width: 900px;
  margin-bottom: 56px;
}

.section-heading.center {
  max-width: none;
  text-align: center;
}

.section-heading.with-action {
  display: flex;
  max-width: none;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.honors-section {
  margin-top: 116px;
}

.honors-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 42px 34px;
}

.honor-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 236px;
  padding: 30px 70px 34px;
  text-align: center;
  overflow: hidden;
  border-radius: 8px;
  background: #fff url("../assets/about-item-bg.jpg") center bottom / contain no-repeat;
}

.honor-source,
.honor-card strong,
.honor-card p {
  position: relative;
  z-index: 1;
}

.honor-source {
  color: #263247;
  font-size: 16px;
  font-weight: 800;
}

.honor-card strong {
  display: block;
  margin-top: 10px;
  color: var(--color-brand);
  font-size: 24px;
  line-height: 1.22;
}

.honor-card p {
  max-width: 168px;
  margin: 34px auto 0;
  padding-top: 0;
  border-top: 0;
  color: #263247;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.55;
}

.product-accordion {
  display: flex;
  gap: 24px;
  min-height: 560px;
}

.product-card {
  position: relative;
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  justify-content: flex-end;
  min-width: 0;
  overflow: hidden;
  padding: 38px;
  border: 1px solid #dfe5ee;
  border-radius: 8px;
  color: var(--color-white);
  background:
    linear-gradient(180deg, rgba(22, 29, 39, 0.18) 0%, rgba(22, 29, 39, 0.88) 100%),
    url("../assets/product-ai-os.svg") center / cover no-repeat,
    linear-gradient(145deg, #f5f7fa 0%, #ffffff 100%);
  box-shadow: 0 14px 34px rgba(216, 12, 24, 0.09);
  cursor: pointer;
  transition: flex 0.36s ease, transform 0.24s ease, box-shadow 0.24s ease;
}

.product-card:nth-child(2) {
  background-position: 58% center;
}

.product-card:nth-child(3) {
  background-position: 68% center;
}

.product-card:nth-child(4) {
  background-position: 78% center;
}

.product-card:nth-child(5) {
  background-position: 88% center;
}

.product-card::before {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 24% 18%, rgba(216, 12, 24, 0.42), transparent 32%),
    linear-gradient(90deg, rgba(19, 28, 42, 0.58), rgba(19, 28, 42, 0.18));
  opacity: 0.72;
  content: "";
}

.product-card.is-active {
  flex: 2.35 1 0;
  box-shadow: 0 22px 54px rgba(216, 12, 24, 0.16);
}

.product-card:focus {
  outline: 3px solid rgba(216, 12, 24, 0.28);
  outline-offset: 3px;
}

.product-tag,
.product-card h3,
.product-detail {
  position: relative;
  z-index: 1;
}

.product-tag {
  align-self: flex-start;
  margin-bottom: 24px;
  padding: 8px 14px;
  border-radius: 6px;
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.2);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.product-card h3 {
  min-height: 90px;
  margin: 0;
  font-size: 34px;
  line-height: 1.2;
  letter-spacing: 0;
  writing-mode: horizontal-tb;
}

.product-detail {
  max-width: 520px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transform: translateY(14px);
  transition: max-height 0.32s ease, opacity 0.24s ease, transform 0.24s ease;
}

.product-card.is-active .product-detail {
  max-height: 290px;
  opacity: 1;
  transform: translateY(0);
}

.product-detail p {
  margin: 6px 0 24px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 16px;
}

.product-detail ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-detail li {
  position: relative;
  padding-left: 24px;
  color: rgba(255, 255, 255, 0.94);
  white-space: nowrap;
}

.product-detail li::before {
  position: absolute;
  top: 10px;
  left: 2px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.22);
  content: "";
}

.product-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 30px;
}

.product-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 4px;
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
}

.product-actions a:first-child {
  border-color: var(--color-brand);
  background: var(--color-brand);
}

.industry-accordion {
  display: grid;
  gap: 24px;
}

.industry-row {
  display: flex;
  gap: 24px;
  min-height: 360px;
}

.industry-card {
  position: relative;
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  justify-content: flex-end;
  min-width: 0;
  overflow: hidden;
  padding: 44px;
  border-radius: 8px;
  color: var(--color-white);
  background:
    linear-gradient(180deg, rgba(19, 28, 42, 0.18) 0%, rgba(19, 28, 42, 0.86) 100%),
    url("../assets/industry-pattern.svg") center / cover no-repeat,
    #263241;
  box-shadow: 0 14px 34px rgba(28, 38, 52, 0.1);
  cursor: pointer;
  transition: flex 0.36s ease, box-shadow 0.24s ease, transform 0.24s ease;
}

.industry-card:nth-child(2) {
  background-position: 58% center;
}

.industry-card:nth-child(3) {
  background-position: 78% center;
}

.industry-card::before {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 24% 22%, rgba(216, 12, 24, 0.4), transparent 34%),
    linear-gradient(90deg, rgba(15, 23, 34, 0.54), rgba(15, 23, 34, 0.18));
  opacity: 0.74;
  content: "";
}

.industry-card.is-active {
  flex: 2.2 1 0;
  box-shadow: 0 22px 54px rgba(28, 38, 52, 0.16);
}

.industry-card:focus {
  outline: 3px solid rgba(216, 12, 24, 0.28);
  outline-offset: 3px;
}

.industry-card h3,
.industry-detail {
  position: relative;
  z-index: 1;
}

.industry-card h3 {
  min-height: 52px;
  margin: 0;
  font-size: 34px;
  line-height: 1.22;
  letter-spacing: 0;
  white-space: nowrap;
}

.industry-detail {
  max-width: 560px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transform: translateY(14px);
  transition: max-height 0.32s ease, opacity 0.24s ease, transform 0.24s ease;
}

.industry-card.is-active .industry-detail {
  max-height: 180px;
  opacity: 1;
  transform: translateY(0);
}

.industry-detail p {
  margin: 12px 0 26px;
  color: rgba(255, 255, 255, 0.9);
}

.industry-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 470px;
}

.industry-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 4px;
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
}

.industry-actions a:first-child {
  color: #172234;
  border-color: var(--color-white);
  background: var(--color-white);
}

.cases-section {
  background: var(--color-light);
}

.partners-section {
  background: var(--color-white);
}

.compact-band {
  padding: 64px;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background: var(--color-white);
  box-shadow: var(--shadow-card);
}

.compact-band.light {
  background: var(--color-white);
}

.text-link {
  color: var(--color-brand);
  font-weight: 800;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.news-grid article {
  min-height: 280px;
  padding: 36px;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background: var(--color-white);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.news-grid article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.news-grid time {
  color: var(--color-brand);
  font-weight: 800;
}

.news-grid h3 {
  margin: 16px 0 12px;
  color: #222d3c;
  font-size: 21px;
  line-height: 1.35;
}

.news-grid p {
  margin: 0;
  color: var(--color-muted);
}

.cta-section {
  padding: 96px 0;
  background: var(--color-light);
}

.cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px 64px;
  align-items: center;
}

.cta-inner h2 {
  margin: 0;
  color: #172234;
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.2;
}

.cta-inner p {
  max-width: 720px;
  margin: 14px 0 0;
  color: var(--color-muted);
}

.trial-page {
  min-height: 100vh;
  padding-top: var(--header-height);
  background:
    radial-gradient(circle at 22% 62%, rgba(255, 255, 255, 0.72), transparent 30%),
    linear-gradient(115deg, #eef8ff 0%, #f5fbff 48%, #f4f1ff 100%);
}

.trial-hero {
  min-height: calc(100vh - var(--header-height));
  padding: 86px 0;
}

.trial-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 520px;
  gap: 92px;
  align-items: center;
}

.trial-copy h1 {
  margin: 0 0 34px;
  color: #182434;
  font-size: clamp(34px, 4vw, 50px);
  line-height: 1.18;
}

.trial-benefits {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 220px));
  gap: 18px 34px;
}

.trial-benefits span {
  position: relative;
  padding-left: 30px;
  color: #182434;
  font-size: 17px;
}

.trial-benefits span::before {
  position: absolute;
  top: 2px;
  left: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  color: #1b83ff;
  background: #dcebff;
  font-size: 15px;
  line-height: 20px;
  text-align: center;
  content: "✓";
}

.trial-phone {
  margin: 36px 0 0;
  color: #182434;
  font-size: 20px;
}

.trial-logos {
  margin-top: 116px;
}

.trial-logos p {
  margin: 0 0 28px;
  color: #263247;
  font-size: 18px;
  text-align: center;
}

.logo-wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  max-width: 620px;
}

.logo-wall span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 12px;
  border-radius: 4px;
  color: #6c7480;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 24px rgba(34, 56, 90, 0.08);
  font-weight: 800;
}

.trial-form {
  padding: 62px 64px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 26px 80px rgba(35, 51, 74, 0.16);
}

.trial-form h2 {
  margin: 0;
  color: #182434;
  font-size: 32px;
  line-height: 1.25;
  text-align: center;
}

.trial-form > p {
  margin: 8px 0 30px;
  color: #263247;
  text-align: center;
}

.trial-form label {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  margin-top: 18px;
  color: #182434;
  font-size: 15px;
}

.trial-form em {
  color: var(--color-brand);
  font-style: normal;
}

.trial-form input,
.trial-form select {
  width: 100%;
  height: 58px;
  padding: 0 20px;
  border: 1px solid #dfe5ee;
  border-radius: 0;
  color: #182434;
  background: var(--color-white);
  font: inherit;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.trial-form input:focus,
.trial-form select:focus {
  border-color: #1b83ff;
  box-shadow: 0 0 0 3px rgba(27, 131, 255, 0.12);
}

.verify-row {
  display: grid;
  grid-template-columns: 1fr 150px;
  gap: 12px;
  margin-left: 94px;
  margin-top: 18px;
}

.verify-row label {
  display: block;
  margin: 0;
}

.verify-row button {
  height: 58px;
  border: 1px solid #1b83ff;
  color: #006de7;
  background: var(--color-white);
  font: inherit;
  cursor: pointer;
}

.agreement {
  display: flex !important;
  grid-template-columns: none !important;
  gap: 8px !important;
  align-items: flex-start !important;
  margin-left: 94px;
  color: #7a8493 !important;
  font-size: 13px !important;
}

.agreement input {
  width: 16px;
  height: 16px;
  padding: 0;
}

.submit-btn {
  display: block;
  width: min(300px, 100%);
  height: 60px;
  margin: 38px auto 0;
  border: 0;
  border-radius: 4px;
  color: var(--color-white);
  background: linear-gradient(90deg, #006dff 0%, #00b8d9 100%);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 14px 32px rgba(0, 126, 238, 0.24);
}

.site-footer {
  position: relative;
  overflow: hidden;
  padding: 58px 0 34px;
  color: #aebbd0;
  background:
    radial-gradient(circle at 76% 88%, rgba(73, 102, 140, 0.18), transparent 32%),
    linear-gradient(135deg, #101b2b 0%, #1a2940 100%);
}

.site-footer::before {
  position: absolute;
  inset: auto 0 0;
  height: 210px;
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.08), transparent 68%);
  content: "";
}

.footer-main,
.footer-products,
.footer-bottom {
  position: relative;
  z-index: 1;
}

.footer-main {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 80px;
}

.footer-brand img {
  width: 150px;
  height: auto;
  filter: brightness(0) invert(1);
}

.footer-service {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
  color: #cbd6e6;
  font-size: 18px;
}

.footer-service.muted {
  color: #8f9db1;
}

.service-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: var(--color-white);
  background: linear-gradient(135deg, #5e7cff, #d6e4ff);
  font-size: 13px;
  font-weight: 700;
}

.footer-service.muted .service-avatar {
  background: #728198;
}

.footer-social {
  margin-top: 34px;
}

.footer-social p {
  margin: 0 0 14px;
  color: #c1ccdc;
  font-size: 13px;
}

.social-icons {
  display: flex;
  gap: 12px;
}

.social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(205, 216, 232, 0.42);
  border-radius: 50%;
  color: #dce6f5;
  font-size: 13px;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 42px;
}

.footer-column h3 {
  margin: 0 0 22px;
  color: var(--color-white);
  font-size: 18px;
  font-weight: 700;
}

.footer-column a {
  display: block;
  margin-top: 13px;
  color: #aebbd0;
  font-size: 16px;
  transition: color 0.2s ease;
}

.footer-column a:hover,
.footer-products a:hover,
.footer-bottom a:hover {
  color: var(--color-white);
}

.footer-products {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: 58px;
  padding: 28px 0 22px;
  border-bottom: 1px solid rgba(205, 216, 232, 0.18);
  color: #aebbd0;
  font-size: 14px;
}

.footer-products span {
  color: #c9d4e4;
}

.footer-products a {
  color: #aebbd0;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 24px;
  padding-top: 26px;
  color: #aebbd0;
  font-size: 14px;
}

.footer-bottom p {
  margin: 0;
}

.footer-bottom a {
  color: #aebbd0;
}

.back-top {
  position: fixed;
  right: 34px;
  bottom: 34px;
  z-index: 80;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  color: #111827;
  background: var(--color-white);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.18);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(18px);
  transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.back-top::before {
  position: absolute;
  top: 17px;
  left: 50%;
  width: 8px;
  height: 8px;
  border-top: 1.5px solid currentColor;
  border-left: 1.5px solid currentColor;
  content: "";
  transform: translateX(-50%) rotate(45deg);
}

.back-top span {
  position: relative;
  display: block;
  width: 14px;
  height: 18px;
  font-size: 0;
}

.back-top span::before,
.back-top span::after {
  position: absolute;
  left: 50%;
  background: currentColor;
  content: "";
  transform: translateX(-50%);
}

.back-top span::before {
  top: 6px;
  width: 1.5px;
  height: 10px;
}

.back-top span::after {
  bottom: 1px;
  width: 6px;
  height: 1.5px;
}

.back-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-top:hover,
.back-top:focus-visible {
  background: #f8fafc;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.22);
  transform: translateY(-3px);
}

@media (max-width: 1080px) {
  .header-inner {
    gap: 24px;
  }

  .site-nav {
    gap: 24px;
  }

  .site-nav > a,
  .nav-item > a {
    font-size: 14px;
  }

  .phone-link {
    display: none;
  }

  .hero-grid,
  .split-layout {
    grid-template-columns: 1fr;
  }

  .product-accordion {
    min-height: 500px;
    gap: 18px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .honors-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .news-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-columns {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .trial-layout {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .trial-form {
    max-width: 620px;
    margin: 0 auto;
  }
}

@media (max-width: 780px) {
  :root {
    --header-height: 60px;
  }

  .container {
    width: min(100% - 28px, 1280px);
  }

  .brand img {
    width: 132px;
    height: 42px;
  }

  .menu-toggle {
    display: block;
    margin-left: auto;
  }

  .header-actions {
    display: none;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    right: 14px;
    left: 14px;
    display: none;
    height: auto;
    padding: 10px;
    border: 1px solid var(--color-line);
    border-radius: 8px;
    background: var(--color-white);
    box-shadow: 0 18px 42px rgba(35, 45, 62, 0.12);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav > a,
  .nav-item > a {
    height: 44px;
    padding: 0 8px;
  }

  .nav-item {
    height: auto;
  }

  .mega-menu {
    position: static;
    display: none;
    width: 100%;
    grid-template-columns: 1fr;
    padding: 14px;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .has-dropdown.is-open .mega-menu {
    display: grid;
  }

  .hero {
    padding: calc(var(--header-height) + 52px) 0 68px;
  }

  .hero-grid {
    gap: 34px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .section {
    padding: 76px 0;
  }

  .about-band {
    padding: 0 0 76px;
  }

  .about-hero {
    height: 260px;
  }

  .company-info {
    margin-top: 58px;
  }

  .company-info h1,
  .company-info h2 {
    margin-bottom: 24px;
  }

  .company-copy {
    font-size: 16px;
    line-height: 1.85;
    text-align: left;
  }

  .about-stats {
    margin-top: 48px;
  }

  .stats-grid,
  .honors-grid,
  .news-grid,
  .cta-inner {
    grid-template-columns: 1fr;
  }

  .honors-section {
    margin-top: 72px;
  }

  .honor-card {
    min-height: 220px;
    padding: 30px 62px 34px;
    background-size: contain;
  }

  .compact-band {
    padding: 28px 22px;
  }

  .product-accordion {
    display: grid;
    min-height: auto;
  }

  .product-card,
  .product-card.is-active {
    min-height: 420px;
    padding: 28px 22px;
  }

  .product-detail li {
    white-space: normal;
  }

  .industry-row {
    display: grid;
    min-height: auto;
  }

  .industry-card,
  .industry-card.is-active {
    min-height: 340px;
    padding: 30px 22px;
  }

  .industry-card h3 {
    white-space: normal;
  }

  .section-heading.with-action {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer {
    padding: 46px 0 28px;
  }

  .footer-columns {
    grid-template-columns: 1fr 1fr;
    gap: 30px 24px;
  }

  .footer-column h3 {
    margin-bottom: 14px;
    font-size: 16px;
  }

  .footer-column a {
    margin-top: 10px;
    font-size: 14px;
  }

  .footer-products {
    margin-top: 42px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .back-top {
    right: 18px;
    bottom: 20px;
    width: 42px;
    height: 42px;
    font-size: 21px;
  }

  .trial-hero {
    padding: 58px 0;
  }

  .trial-benefits,
  .logo-wall {
    grid-template-columns: 1fr;
  }

  .trial-logos {
    margin-top: 64px;
  }

  .trial-form {
    padding: 34px 22px;
  }

  .trial-form label {
    display: block;
  }

  .trial-form label > span {
    display: block;
    margin-bottom: 8px;
  }

  .verify-row,
  .agreement {
    margin-left: 0;
  }

  .verify-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .aos-init,
  .product-card.aos-init,
  .industry-row.aos-init,
  .stats-grid strong.count-bounce {
    opacity: 1;
    transform: none;
    transition: none;
    animation: none;
  }
}