:root {
  --color-primary: #2563eb;
  --color-primary-dark: #0f2b6e;
  --color-dark: #1f2937;
  --color-slate: #4b5563;
  --color-light: #f3f4f6;
  --color-surface: rgba(255, 255, 255, 0.82);
  --color-surface-strong: rgba(255, 255, 255, 0.95);
  --color-accent: #f97316;
  --color-border: rgba(37, 99, 235, 0.12);
  --shadow-lg: 0 32px 80px rgba(15, 43, 110, 0.14);
  --shadow-md: 0 20px 48px rgba(31, 41, 55, 0.12);
  --shadow-sm: 0 12px 30px rgba(37, 99, 235, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --container: min(1180px, calc(100% - 48px));
  --transition: 280ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--color-dark);
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.18), transparent 32%),
    radial-gradient(circle at 88% 14%, rgba(249, 115, 22, 0.12), transparent 20%),
    linear-gradient(180deg, #eef4ff 0%, #f8fafc 20%, #ffffff 55%, #eef3fb 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.section {
  padding: 92px 0;
}

.section-sm {
  padding: 24px 0 0;
}

.page-shell {
  position: relative;
  isolation: isolate;
}

.bg-orb {
  position: fixed;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  filter: blur(24px);
  opacity: 0.4;
  z-index: -1;
  pointer-events: none;
}

.bg-orb-left {
  top: 72px;
  left: -120px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.35), transparent 68%);
}

.bg-orb-right {
  top: 40%;
  right: -120px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.24), transparent 68%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(238, 244, 255, 0.74);
  border-bottom: 1px solid rgba(37, 99, 235, 0.08);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 24px;
  min-height: 84px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 12px 24px rgba(15, 43, 110, 0.18);
}

.brand-copy {
  display: flex;
  flex-direction: column;
}

.brand-copy strong {
  font-size: 1.1rem;
  letter-spacing: 0.08em;
}

.brand-copy span {
  font-size: 0.72rem;
  color: var(--color-slate);
  letter-spacing: 0.14em;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.site-nav a {
  position: relative;
  font-size: 0.96rem;
  color: var(--color-slate);
  transition: color var(--transition);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-dark);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.primary-btn,
.secondary-btn,
.ghost-btn {
  border: none;
  border-radius: 999px;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    background var(--transition),
    color var(--transition);
}

.ghost-btn,
.secondary-btn {
  padding: 10px 16px;
}

.primary-btn {
  background: linear-gradient(135deg, var(--color-primary), #4f7dff);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.primary-btn,
.secondary-btn,
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  font-weight: 600;
}

.primary-btn:hover,
.secondary-btn:hover,
.ghost-btn:hover {
  transform: translateY(-2px);
}

.secondary-btn {
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-primary-dark);
  border: 1px solid rgba(37, 99, 235, 0.18);
}

.ghost-btn {
  background: rgba(255, 255, 255, 0.76);
  color: var(--color-dark);
  border: 1px solid rgba(31, 41, 55, 0.08);
}

.ghost-btn.block,
.secondary-btn.block,
.primary-btn.block {
  width: 100%;
}

.inline-link {
  color: var(--color-primary-dark);
  font-weight: 600;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.75);
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 99px;
}

.hero {
  padding-top: 54px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 44px;
  align-items: center;
}

.hero-copy h1 {
  margin: 18px 0 18px;
  font-size: clamp(2.9rem, 5vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  max-width: 10ch;
}

.hero-lead,
.section-heading p,
.detail-copy p,
.about-panel p {
  color: var(--color-slate);
  line-height: 1.8;
  font-size: 1.02rem;
}

.eyebrow,
.tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary-dark);
  font-size: 0.88rem;
  font-weight: 600;
}

.eyebrow span,
.tag.small {
  background: rgba(37, 99, 235, 0.14);
}

.eyebrow span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.12);
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 28px;
}

.hero-pillars {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.pillar-card,
.stat-card,
.overview-card,
.download-card,
.case-card,
.about-panel,
.timeline-panel,
.news-card,
.testimonial-card,
.price-card,
.scenario-board,
.architecture-card,
.tutorial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(16px);
}

.pillar-card {
  padding: 22px;
  border-radius: var(--radius-md);
}

.pillar-card span,
.stat-card small,
.download-head small,
.news-card small {
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  font-weight: 700;
}

.pillar-card strong {
  display: block;
  margin: 12px 0 8px;
  font-size: 1.1rem;
}

.pillar-card p {
  margin: 0;
  color: var(--color-slate);
  line-height: 1.7;
}

.hero-visual {
  position: relative;
}

.visual-ribbon {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
  margin-bottom: 18px;
}

.visual-ribbon span,
.scenario-tags span,
.arch-chips span,
.culture-row span {
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(37, 99, 235, 0.12);
  color: var(--color-primary-dark);
  font-size: 0.88rem;
}

.scenario-board h4,
.tutorial-card h4 {
  margin: 0;
  font-size: 1.1rem;
}

.scenario-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.scenario-tags span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  text-align: center;
  line-height: 1.4;
}

.mockup-stack {
  display: grid;
  gap: 20px;
  padding: 24px;
  border-radius: 38px;
  background:
    linear-gradient(145deg, rgba(10, 26, 67, 0.98), rgba(21, 54, 129, 0.92)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent);
  box-shadow: 0 34px 84px rgba(15, 43, 110, 0.28);
  overflow: hidden;
}

.product-screen {
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(245, 248, 255, 0.98), rgba(228, 237, 255, 0.94));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
  overflow: hidden;
}

.screen-top {
  display: flex;
  gap: 7px;
  padding: 14px 18px;
  background: rgba(15, 43, 110, 0.08);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #c7d2fe;
}

.screen-body {
  padding: 22px;
}

.screen-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.screen-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.screen-metrics div,
.warehouse-card {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(37, 99, 235, 0.12);
}

.screen-metrics strong,
.warehouse-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.6rem;
}

.mini-chart {
  height: 120px;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(37, 99, 235, 0.22), rgba(37, 99, 235, 0) 75%),
    linear-gradient(125deg, rgba(37, 99, 235, 0.18), rgba(249, 115, 22, 0.28)),
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.5),
      rgba(255, 255, 255, 0.5) 1px,
      transparent 1px,
      transparent 56px
    );
  position: relative;
  overflow: hidden;
}

.mini-chart::after {
  content: "";
  position: absolute;
  inset: auto 0 14px;
  height: 52px;
  margin: 0 18px;
  border-radius: 999px 999px 0 0;
  border: 3px solid rgba(15, 43, 110, 0.7);
  border-bottom: none;
  transform: skewX(-22deg);
}

.signal-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  color: var(--color-slate);
}

.signal-list li::before,
.feature-grid article::before,
.timeline-item::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
}

.warehouse-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.warehouse-card.wide {
  grid-column: 1 / -1;
}

.task-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(31, 41, 55, 0.08);
}

.floating-badge {
  position: absolute;
  max-width: 230px;
  padding: 18px 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(37, 99, 235, 0.12);
}

.floating-badge strong {
  display: block;
  margin-bottom: 6px;
}

.floating-badge span {
  color: var(--color-slate);
  line-height: 1.6;
  font-size: 0.92rem;
}

.badge-left {
  left: -24px;
  bottom: 28px;
}

.badge-right {
  right: -16px;
  top: 96px;
}

.stats-grid,
.overview-cards,
.feature-grid,
.download-grid,
.case-grid,
.about-grid,
.news-grid {
  display: grid;
  gap: 20px;
}

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

.stat-card {
  padding: 28px;
  border-radius: var(--radius-lg);
}

.stat-card strong {
  display: block;
  margin: 14px 0 10px;
  font-size: clamp(2rem, 3vw, 3rem);
  color: var(--color-primary-dark);
}

.stat-card p {
  margin: 0;
  color: var(--color-slate);
  line-height: 1.7;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2 {
  margin: 18px 0 14px;
  font-size: clamp(2rem, 3vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.trust-strip {
  padding-top: 70px;
}

.trust-marquee {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.trust-marquee span {
  padding: 16px 22px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(37, 99, 235, 0.1);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-sm);
}

.overview-cards {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 28px;
}

.overview-card {
  padding: 28px;
  border-radius: var(--radius-lg);
}

.card-top {
  display: flex;
  align-items: center;
  gap: 18px;
}

.card-top h3,
.detail-copy h3,
.download-card h3,
.case-card h3,
.news-card h3,
.about-panel h3,
.timeline-panel h3 {
  margin: 0;
  font-size: 1.55rem;
}

.card-top p,
.case-card p,
.news-card p {
  color: var(--color-slate);
  line-height: 1.75;
}

.product-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(249, 115, 22, 0.18));
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-primary-dark);
}

.overview-card ul {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.overview-card li,
.timeline-item p,
.tutorial-card li {
  color: var(--color-slate);
  line-height: 1.8;
}

.detail-block {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 24px;
  margin-top: 30px;
}

.detail-block.alt {
  grid-template-columns: minmax(320px, 0.84fr) minmax(0, 1.16fr);
}

.detail-copy,
.detail-side {
  display: grid;
  gap: 18px;
}

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

.feature-grid article {
  padding: 22px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(37, 99, 235, 0.1);
}

.feature-grid strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.feature-grid p {
  margin: 0;
  font-size: 0.96rem;
}

.scenario-board,
.testimonial-card,
.price-card,
.architecture-card,
.tutorial-card,
.about-panel,
.timeline-panel {
  padding: 26px;
  border-radius: var(--radius-lg);
}

.testimonial-card p,
.price-card p,
.architecture-card p {
  margin: 14px 0 0;
  color: var(--color-slate);
}

.testimonial-card,
.price-card {
  display: grid;
  gap: 14px;
}

.stars {
  color: var(--color-accent);
  letter-spacing: 0.12em;
}

.testimonial-card strong,
.price-card strong {
  display: block;
}

.price-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(239, 246, 255, 0.94));
}

.price-card small {
  color: var(--color-primary);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.price-card strong {
  font-size: 1.7rem;
  line-height: 1.2;
}

.testimonial-card span {
  color: var(--color-slate);
  line-height: 1.6;
}

.price-card .secondary-btn {
  margin-top: 6px;
}

.architecture-card {
  min-height: 100%;
  display: grid;
  gap: 22px;
}

.arch-top span {
  color: var(--color-primary);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.arch-top strong {
  display: block;
  margin-top: 12px;
  font-size: 1.22rem;
  line-height: 1.5;
}

.arch-flow {
  display: grid;
  grid-template-columns: 1fr 56px 1fr 56px 1fr;
  align-items: center;
  gap: 10px;
}

.arch-flow div {
  padding: 22px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(37, 99, 235, 0.12);
  text-align: center;
  font-weight: 600;
}

.arch-flow i {
  display: block;
  height: 2px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.tutorial-card ol {
  margin: 16px 0 0;
  padding-left: 20px;
}

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

.download-heading {
  max-width: 940px;
}

.download-highlight-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.download-highlight-row span,
.download-meta span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(37, 99, 235, 0.12);
  color: var(--color-primary-dark);
  font-size: 0.86rem;
  font-weight: 600;
}

.download-card {
  position: relative;
  display: grid;
  gap: 16px;
  padding: 28px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 100%;
}

.download-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(37, 99, 235, 0.08), transparent 50%),
    radial-gradient(circle at top right, rgba(249, 115, 22, 0.14), transparent 28%);
  pointer-events: none;
}

.download-head,
.download-actions,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.download-head {
  align-items: flex-start;
}

.download-head h3 {
  font-size: clamp(2rem, 3vw, 2.35rem);
  letter-spacing: -0.04em;
  line-height: 1;
}

.os-badge {
  display: inline-flex;
  width: 60px;
  height: 60px;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  background: rgba(15, 43, 110, 0.92);
  color: #fff;
  font-weight: 800;
}

.download-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.download-progress {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(15, 43, 110, 0.07);
  overflow: hidden;
  margin: 2px 0 0;
  position: relative;
}

.download-progress::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 26%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.18), rgba(79, 125, 255, 0.1));
}

.download-progress span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width 240ms linear;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 2px;
  justify-content: flex-start;
}

.download-actions .primary-btn {
  width: auto;
  min-width: 176px;
  min-height: 48px;
  padding: 12px 24px;
  font-size: 0.96rem;
  letter-spacing: 0.04em;
}

.dual-actions .primary-btn {
  min-width: 144px;
}

.case-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.filter-chip {
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(37, 99, 235, 0.12);
  background: rgba(255, 255, 255, 0.82);
  color: var(--color-primary-dark);
}

.filter-chip.active {
  background: linear-gradient(135deg, var(--color-primary), #4f7dff);
  color: #fff;
}

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

.case-card,
.news-card {
  padding: 28px;
  border-radius: var(--radius-lg);
}

.case-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary-dark);
  font-size: 0.82rem;
  font-weight: 700;
}

.case-card strong {
  display: block;
  margin-top: 18px;
  color: var(--color-primary-dark);
}

.news-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 22px;
}

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

.culture-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  position: relative;
  padding-left: 22px;
}

.timeline-item::before {
  position: absolute;
  left: 0;
  top: 10px;
  margin-right: 0;
}

.timeline-item span {
  color: var(--color-primary);
  font-weight: 700;
}

.timeline-item p {
  margin: 8px 0 0;
}

.site-footer {
  padding: 28px 0 44px;
}

.footer-inner {
  padding: 22px 28px;
  border-radius: 28px;
  background: rgba(15, 43, 110, 0.96);
  color: rgba(255, 255, 255, 0.82);
}

.footer-inner strong {
  color: #fff;
}

.footer-inner p {
  margin: 8px 0 0;
}

.footer-brand {
  display: grid;
  gap: 8px;
}

.footer-contact {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  color: rgba(255, 255, 255, 0.82);
}

.footer-mail {
  color: #d9e6ff;
  font-weight: 600;
}

.footer-mail:hover {
  color: #ffffff;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-record {
  padding: 14px 6px 0;
  text-align: center;
}

.footer-record p {
  margin: 0 0 6px;
  color: rgba(31, 41, 55, 0.62);
  font-size: 0.9rem;
}

.footer-record a {
  color: rgba(31, 41, 55, 0.68);
  font-size: 0.9rem;
}

.footer-record a:hover {
  color: var(--color-primary-dark);
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  max-width: 320px;
  padding: 14px 18px;
  border-radius: 18px;
  background: rgba(15, 43, 110, 0.96);
  color: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(24px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 680ms ease, transform 680ms ease;
}

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

.overview-card:hover,
.download-card:hover,
.case-card:hover,
.news-card:hover,
.pillar-card:hover,
.stat-card:hover {
  transform: translateY(-6px);
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 28px 60px rgba(15, 43, 110, 0.16);
}

@media (max-width: 1180px) {
  .header-inner {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .menu-toggle {
    display: inline-flex;
    order: 3;
  }

  .site-nav {
    display: none;
  }

  .site-header.nav-open .site-nav {
    display: flex;
    grid-column: 1 / -1;
    width: 100%;
  }

  .site-header.nav-open .site-nav {
    flex-wrap: wrap;
    justify-content: flex-start;
    padding-top: 12px;
  }

  .hero-grid,
  .detail-block,
  .detail-block.alt,
  .about-grid {
    grid-template-columns: 1fr;
  }

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

  .badge-left,
  .badge-right {
    position: static;
    margin-top: 14px;
    max-width: none;
  }
}

@media (max-width: 900px) {
  .overview-cards,
  .download-grid,
  .case-grid,
  .news-grid,
  .feature-grid,
  .hero-pillars {
    grid-template-columns: 1fr;
  }

  .arch-flow {
    grid-template-columns: 1fr;
  }

  .arch-flow i {
    width: 2px;
    height: 34px;
    margin: 0 auto;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  }

  .download-head,
  .download-actions,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .download-head {
    flex-direction: row;
    align-items: flex-start;
  }

  .download-actions .primary-btn {
    min-width: 164px;
  }

  .case-filter {
    overflow-x: auto;
    padding-bottom: 6px;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(100% - 28px, 100%);
  }

  .section {
    padding: 72px 0;
  }

  .hero-copy h1,
  .section-heading h2 {
    max-width: none;
  }

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

  .hero-cta .primary-btn,
  .hero-cta .secondary-btn {
    width: 100%;
  }

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

  .brand-copy span {
    letter-spacing: 0.08em;
  }

  .header-inner {
    gap: 16px;
  }

  .scenario-board,
  .testimonial-card,
  .price-card {
    padding: 22px 18px;
  }

  .download-card {
    padding: 22px 18px;
    gap: 14px;
  }

  .download-heading {
    max-width: none;
  }

  .download-highlight-row {
    gap: 10px;
  }

  .download-highlight-row span,
  .download-meta span {
    width: auto;
    min-height: 36px;
    padding: 8px 12px;
    font-size: 0.82rem;
  }

  .download-head h3 {
    font-size: 1.8rem;
    line-height: 1.1;
  }

  .os-badge {
    width: 56px;
    height: 56px;
    border-radius: 18px;
  }

  .download-actions {
    gap: 10px;
  }

  .download-actions .primary-btn,
  .dual-actions .primary-btn {
    width: 100%;
    min-width: 0;
  }

  .scenario-tags {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .scenario-tags span {
    width: 100%;
    min-height: 48px;
    padding: 10px 12px;
    border-radius: 18px;
  }

  .testimonial-card p,
  .price-card p {
    margin-top: 0;
    font-size: 0.96rem;
  }

  .price-card strong {
    font-size: 1.45rem;
  }
}